git.delta.rocks / unique-network / refs/commits / add44eb3dbb8

difftreelog

Merge branch 'develop' into tests/feed-alices

Fahrrader2022-10-06parents: #535a8e9 #05841c0.patch.diff
in: master

126 files changed

addedtests/src/.outdated/addToContractAllowList.test.tsdiffbeforeafterboth
--- /dev/null
+++ b/tests/src/.outdated/addToContractAllowList.test.ts
@@ -0,0 +1,99 @@
+// Copyright 2019-2022 Unique Network (Gibraltar) Ltd.
+// This file is part of Unique Network.
+
+// Unique Network is free software: you can redistribute it and/or modify
+// it under the terms of the GNU General Public License as published by
+// the Free Software Foundation, either version 3 of the License, or
+// (at your option) any later version.
+
+// Unique Network is distributed in the hope that it will be useful,
+// but WITHOUT ANY WARRANTY; without even the implied warranty of
+// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+// GNU General Public License for more details.
+
+// You should have received a copy of the GNU General Public License
+// along with Unique Network. If not, see <http://www.gnu.org/licenses/>.
+
+import chai from 'chai';
+import chaiAsPromised from 'chai-as-promised';
+import usingApi, {submitTransactionAsync, submitTransactionExpectFailAsync} from '../substrate/substrate-api';
+import {deployFlipper} from '../deprecated-helpers/contracthelpers';
+import {getGenericResult} from '../deprecated-helpers/helpers';
+
+chai.use(chaiAsPromised);
+const expect = chai.expect;
+
+// todo:playgrounds skipped ~ postponed
+describe.skip('Integration Test addToContractAllowList', () => {
+
+  it('Add an address to a contract allow list', async () => {
+    await usingApi(async (api, privateKeyWrapper) => {
+      const bob = privateKeyWrapper('//Bob');
+      const [contract, deployer] = await deployFlipper(api, privateKeyWrapper);
+
+      const allowListedBefore = (await api.query.unique.contractAllowList(contract.address, bob.address)).toJSON();
+      const addTx = api.tx.unique.addToContractAllowList(contract.address, bob.address);
+      const addEvents = await submitTransactionAsync(deployer, addTx);
+      const allowListedAfter = (await api.query.unique.contractAllowList(contract.address, bob.address)).toJSON();
+
+      expect(getGenericResult(addEvents).success).to.be.true;
+      expect(allowListedBefore).to.be.false;
+      expect(allowListedAfter).to.be.true;
+    });
+  });
+
+  it('Adding same address to allow list repeatedly should not produce errors', async () => {
+    await usingApi(async (api, privateKeyWrapper) => {
+      const bob = privateKeyWrapper('//Bob');
+      const [contract, deployer] = await deployFlipper(api, privateKeyWrapper);
+
+      const allowListedBefore = (await api.query.unique.contractAllowList(contract.address, bob.address)).toJSON();
+      const addTx = api.tx.unique.addToContractAllowList(contract.address, bob.address);
+      const addEvents = await submitTransactionAsync(deployer, addTx);
+      const allowListedAfter = (await api.query.unique.contractAllowList(contract.address, bob.address)).toJSON();
+      const addAgainEvents = await submitTransactionAsync(deployer, addTx);
+      const allowListedAgainAfter = (await api.query.unique.contractAllowList(contract.address, bob.address)).toJSON();
+
+      expect(getGenericResult(addEvents).success).to.be.true;
+      expect(allowListedBefore).to.be.false;
+      expect(allowListedAfter).to.be.true;
+      expect(getGenericResult(addAgainEvents).success).to.be.true;
+      expect(allowListedAgainAfter).to.be.true;
+    });
+  });
+});
+
+describe.skip('Negative Integration Test addToContractAllowList', () => {
+
+  it('Add an address to a allow list of a non-contract', async () => {
+    await usingApi(async (api, privateKeyWrapper) => {
+      const alice = privateKeyWrapper('//Bob');
+      const bob = privateKeyWrapper('//Bob');
+      const charlieGuineaPig = privateKeyWrapper('//Charlie');
+
+      const allowListedBefore = (await api.query.unique.contractAllowList(charlieGuineaPig.address, bob.address)).toJSON();
+      const addTx = api.tx.unique.addToContractAllowList(charlieGuineaPig.address, bob.address);
+      await expect(submitTransactionExpectFailAsync(alice, addTx)).to.be.rejected;
+      const allowListedAfter = (await api.query.unique.contractAllowList(charlieGuineaPig.address, bob.address)).toJSON();
+
+      expect(allowListedBefore).to.be.false;
+      expect(allowListedAfter).to.be.false;
+    });
+  });
+
+  it('Add to a contract allow list using a non-owner address', async () => {
+    await usingApi(async (api, privateKeyWrapper) => {
+      const bob = privateKeyWrapper('//Bob');
+      const [contract] = await deployFlipper(api, privateKeyWrapper);
+
+      const allowListedBefore = (await api.query.unique.contractAllowList(contract.address, bob.address)).toJSON();
+      const addTx = api.tx.unique.addToContractAllowList(contract.address, bob.address);
+      await expect(submitTransactionExpectFailAsync(bob, addTx)).to.be.rejected;
+      const allowListedAfter = (await api.query.unique.contractAllowList(contract.address, bob.address)).toJSON();
+
+      expect(allowListedBefore).to.be.false;
+      expect(allowListedAfter).to.be.false;
+    });
+  });
+
+});
addedtests/src/.outdated/balance-transfer-contract/calls.wasmdiffbeforeafterboth

binary blob — no preview

addedtests/src/.outdated/balance-transfer-contract/metadata.jsondiffbeforeafterboth
--- /dev/null
+++ b/tests/src/.outdated/balance-transfer-contract/metadata.json
@@ -0,0 +1,96 @@
+{
+  "registry": {
+    "strings": [
+      "Storage",
+      "calls",
+      "__ink_private",
+      "__ink_storage",
+      "new",
+      "balance_transfer",
+      "dest",
+      "AccountId",
+      "value",
+      "Balance"
+    ],
+    "types": [
+      {
+        "id": {
+          "custom.name": 1,
+          "custom.namespace": [
+            2,
+            2,
+            3,
+            4
+          ],
+          "custom.params": []
+        },
+        "def": {
+          "struct.fields": []
+        }
+      },
+      {
+        "id": {
+          "array.len": 32,
+          "array.type": 3
+        },
+        "def": "builtin"
+      },
+      {
+        "id": "u8",
+        "def": "builtin"
+      },
+      {
+        "id": "u128",
+        "def": "builtin"
+      }
+    ]
+  },
+  "storage": {
+    "struct.type": 1,
+    "struct.fields": []
+  },
+  "contract": {
+    "name": 2,
+    "constructors": [
+      {
+        "name": 5,
+        "selector": "[\"0x5E\",\"0xBD\",\"0x88\",\"0xD6\"]",
+        "args": [],
+        "docs": []
+      }
+    ],
+    "messages": [
+      {
+        "name": 6,
+        "selector": "[\"0xEC\",\"0x9F\",\"0xA4\",\"0xF0\"]",
+        "mutates": false,
+        "args": [
+          {
+            "name": 7,
+            "type": {
+              "ty": 2,
+              "display_name": [
+                8
+              ]
+            }
+          },
+          {
+            "name": 9,
+            "type": {
+              "ty": 4,
+              "display_name": [
+                10
+              ]
+            }
+          }
+        ],
+        "return_type": null,
+        "docs": [
+          "Dispatches a `transfer` call to the Balances srml module"
+        ]
+      }
+    ],
+    "events": [],
+    "docs": []
+  }
+}
\ No newline at end of file
addedtests/src/.outdated/collision-tests/admVsOwnerChanges.test.tsdiffbeforeafterboth
--- /dev/null
+++ b/tests/src/.outdated/collision-tests/admVsOwnerChanges.test.ts
@@ -0,0 +1,73 @@
+// Copyright 2019-2022 Unique Network (Gibraltar) Ltd.
+// This file is part of Unique Network.
+
+// Unique Network is free software: you can redistribute it and/or modify
+// it under the terms of the GNU General Public License as published by
+// the Free Software Foundation, either version 3 of the License, or
+// (at your option) any later version.
+
+// Unique Network is distributed in the hope that it will be useful,
+// but WITHOUT ANY WARRANTY; without even the implied warranty of
+// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+// GNU General Public License for more details.
+
+// You should have received a copy of the GNU General Public License
+// along with Unique Network. If not, see <http://www.gnu.org/licenses/>.
+
+/* broken by design
+// substrate transactions are sequential, not parallel
+// the order of execution is indeterminate
+
+import { IKeyringPair } from '@polkadot/types/types';
+import chai from 'chai';
+import chaiAsPromised from 'chai-as-promised';
+import privateKey from '../substrate/privateKey';
+import usingApi, { submitTransactionAsync } from '../substrate/substrate-api';
+import {
+  createCollectionExpectSuccess,
+  createItemExpectSuccess,
+  normalizeAccountId,
+  waitNewBlocks,
+} from '../util/helpers';
+
+chai.use(chaiAsPromised);
+const expect = chai.expect;
+let Alice: IKeyringPair;
+let Bob: IKeyringPair;
+let Ferdie: IKeyringPair;
+
+before(async () => {
+  await usingApi(async () => {
+    Alice = privateKey('//Alice');
+    Bob = privateKey('//Bob');
+    Ferdie = privateKey('//Ferdie');
+  });
+});
+
+describe('Admin vs Owner changes token: ', () => {
+  // tslint:disable-next-line: max-line-length
+  it('The collection admin changes the owner of the token and in the same block the current owner transfers the token to another address ', async () => {
+
+    await usingApi(async (api) => {
+      const collectionId = await createCollectionExpectSuccess();
+      const changeAdminTxBob = api.tx.unique.addCollectionAdmin(collectionId, normalizeAccountId(Bob.address));
+      await submitTransactionAsync(Alice, changeAdminTxBob);
+      const changeAdminTxFerdie = api.tx.unique.addCollectionAdmin(collectionId, normalizeAccountId(Ferdie.address));
+      await submitTransactionAsync(Bob, changeAdminTxFerdie);
+      const itemId = await createItemExpectSuccess(Ferdie, collectionId, 'NFT');
+
+      const changeOwner = api.tx.unique.transferFrom(normalizeAccountId(Ferdie.address), normalizeAccountId(Bob.address), collectionId, itemId, 1);
+      const approve = api.tx.unique.approve(normalizeAccountId(Bob.address), collectionId, itemId, 1);
+      const sendItem = api.tx.unique.transfer(normalizeAccountId(Alice.address), collectionId, itemId, 1);
+      await Promise.all([
+        changeOwner.signAndSend(Alice),
+        approve.signAndSend(Bob),
+        sendItem.signAndSend(Ferdie),
+      ]);
+      const itemBefore: any = await api.query.unique.nftItemList(collectionId, itemId);
+      expect(itemBefore.owner).not.to.be.eq(Bob.address);
+      await waitNewBlocks(2);
+    });
+  });
+});
+*/
\ No newline at end of file
addedtests/src/.outdated/collision-tests/admVsOwnerData.test.tsdiffbeforeafterboth
--- /dev/null
+++ b/tests/src/.outdated/collision-tests/admVsOwnerData.test.ts
@@ -0,0 +1,69 @@
+// Copyright 2019-2022 Unique Network (Gibraltar) Ltd.
+// This file is part of Unique Network.
+
+// Unique Network is free software: you can redistribute it and/or modify
+// it under the terms of the GNU General Public License as published by
+// the Free Software Foundation, either version 3 of the License, or
+// (at your option) any later version.
+
+// Unique Network is distributed in the hope that it will be useful,
+// but WITHOUT ANY WARRANTY; without even the implied warranty of
+// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+// GNU General Public License for more details.
+
+// You should have received a copy of the GNU General Public License
+// along with Unique Network. If not, see <http://www.gnu.org/licenses/>.
+
+/* broken by design
+// substrate transactions are sequential, not parallel
+// the order of execution is indeterminate
+
+import { IKeyringPair } from '@polkadot/types/types';
+import chai from 'chai';
+import chaiAsPromised from 'chai-as-promised';
+import privateKey from '../substrate/privateKey';
+import usingApi, { submitTransactionAsync } from '../substrate/substrate-api';
+import {
+  createCollectionExpectSuccess,
+  createItemExpectSuccess,
+  normalizeAccountId,
+  waitNewBlocks,
+} from '../util/helpers';
+
+chai.use(chaiAsPromised);
+const expect = chai.expect;
+let Alice: IKeyringPair;
+let Bob: IKeyringPair;
+
+before(async () => {
+  await usingApi(async () => {
+    Alice = privateKey('//Alice');
+    Bob = privateKey('//Bob');
+  });
+});
+
+describe('Admin vs Owner changes the data in the token: ', () => {
+  it('The collection admin changes the data in the token and in the same block the token owner also changes the data in it ', async () => {
+    await usingApi(async (api) => {
+      const AliceData = 1;
+      const BobData = 2;
+      const collectionId = await createCollectionExpectSuccess();
+      const changeAdminTx = api.tx.unique.addCollectionAdmin(collectionId, normalizeAccountId(Bob.address));
+      await submitTransactionAsync(Alice, changeAdminTx);
+      const itemId = await createItemExpectSuccess(Bob, collectionId, 'NFT');
+      //
+      // tslint:disable-next-line: max-line-length
+      const AliceTx = api.tx.unique.setVariableMetaData(collectionId, itemId, AliceData.toString());
+      // tslint:disable-next-line: max-line-length
+      const BobTx = api.tx.unique.setVariableMetaData(collectionId, itemId, BobData.toString());
+      await Promise.all([
+        AliceTx.signAndSend(Alice),
+        BobTx.signAndSend(Bob),
+      ]);
+      const item: any = await api.query.unique.nftItemList(collectionId, itemId);
+      expect(item.variableData).not.to.be.eq(null); // Pseudo-random selection of one of two values
+      await waitNewBlocks(2);
+    });
+  });
+});
+*/
\ No newline at end of file
addedtests/src/.outdated/collision-tests/admVsOwnerTake.test.tsdiffbeforeafterboth
--- /dev/null
+++ b/tests/src/.outdated/collision-tests/admVsOwnerTake.test.ts
@@ -0,0 +1,71 @@
+// Copyright 2019-2022 Unique Network (Gibraltar) Ltd.
+// This file is part of Unique Network.
+
+// Unique Network is free software: you can redistribute it and/or modify
+// it under the terms of the GNU General Public License as published by
+// the Free Software Foundation, either version 3 of the License, or
+// (at your option) any later version.
+
+// Unique Network is distributed in the hope that it will be useful,
+// but WITHOUT ANY WARRANTY; without even the implied warranty of
+// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+// GNU General Public License for more details.
+
+// You should have received a copy of the GNU General Public License
+// along with Unique Network. If not, see <http://www.gnu.org/licenses/>.
+
+/* broken by design
+// substrate transactions are sequential, not parallel
+// the order of execution is indeterminate
+
+import { IKeyringPair } from '@polkadot/types/types';
+import chai from 'chai';
+import chaiAsPromised from 'chai-as-promised';
+import privateKey from '../substrate/privateKey';
+import usingApi, { submitTransactionAsync } from '../substrate/substrate-api';
+import {
+  createCollectionExpectSuccess,
+  createItemExpectSuccess,
+  normalizeAccountId,
+  waitNewBlocks,
+} from '../util/helpers';
+
+chai.use(chaiAsPromised);
+const expect = chai.expect;
+let Alice: IKeyringPair;
+let Bob: IKeyringPair;
+let Ferdie: IKeyringPair;
+
+before(async () => {
+  await usingApi(async () => {
+    Alice = privateKey('//Alice');
+    Bob = privateKey('//Bob');
+    Ferdie = privateKey('//Ferdie');
+  });
+});
+
+describe('Admin vs Owner take token: ', () => {
+  // tslint:disable-next-line: max-line-length
+  it('The collection admin burns the token and in the same block the token owner performs a transaction on it ', async () => {
+    await usingApi(async (api) => {
+      const collectionId = await createCollectionExpectSuccess();
+      const changeAdminTx = api.tx.unique.addCollectionAdmin(collectionId, normalizeAccountId(Bob.address));
+      await submitTransactionAsync(Alice, changeAdminTx);
+      const itemId = await createItemExpectSuccess(Bob, collectionId, 'NFT');
+      //
+      const sendItem = api.tx.unique.transfer(normalizeAccountId(Ferdie.address), collectionId, itemId, 1);
+      const burnItem = api.tx.unique.burnItem(collectionId, itemId, 1);
+      await Promise.all([
+        sendItem.signAndSend(Bob),
+        burnItem.signAndSend(Alice),
+      ]);
+      await waitNewBlocks(2);
+      let itemBurn = false;
+      itemBurn = (await (api.query.unique.nftItemList(collectionId, itemId))).toJSON() as boolean;
+      // tslint:disable-next-line: no-unused-expression
+      expect(itemBurn).to.be.null;
+      await waitNewBlocks(2);
+    });
+  });
+});
+*/
\ No newline at end of file
addedtests/src/.outdated/collision-tests/adminDestroyCollection.test.tsdiffbeforeafterboth
--- /dev/null
+++ b/tests/src/.outdated/collision-tests/adminDestroyCollection.test.ts
@@ -0,0 +1,70 @@
+// Copyright 2019-2022 Unique Network (Gibraltar) Ltd.
+// This file is part of Unique Network.
+
+// Unique Network is free software: you can redistribute it and/or modify
+// it under the terms of the GNU General Public License as published by
+// the Free Software Foundation, either version 3 of the License, or
+// (at your option) any later version.
+
+// Unique Network is distributed in the hope that it will be useful,
+// but WITHOUT ANY WARRANTY; without even the implied warranty of
+// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+// GNU General Public License for more details.
+
+// You should have received a copy of the GNU General Public License
+// along with Unique Network. If not, see <http://www.gnu.org/licenses/>.
+
+/* broken by design
+// substrate transactions are sequential, not parallel
+// the order of execution is indeterminate
+
+import { IKeyringPair } from '@polkadot/types/types';
+import chai from 'chai';
+import chaiAsPromised from 'chai-as-promised';
+import privateKey from '../substrate/privateKey';
+import usingApi, { submitTransactionAsync } from '../substrate/substrate-api';
+import {
+  createCollectionExpectSuccess,
+  normalizeAccountId,
+  waitNewBlocks,
+} from '../util/helpers';
+
+chai.use(chaiAsPromised);
+const expect = chai.expect;
+let Alice: IKeyringPair;
+let Bob: IKeyringPair;
+let Ferdie: IKeyringPair;
+
+before(async () => {
+  await usingApi(async () => {
+    Alice = privateKey('//Alice');
+    Bob = privateKey('//Bob');
+    Ferdie = privateKey('//Ferdie');
+  });
+});
+
+describe('Deleting a collection while add address to allowlist: ', () => {
+  // tslint:disable-next-line: max-line-length
+  it('Adding an address to the collection allowlist in a block by the admin, and deleting the collection by the owner ', async () => {
+    await usingApi(async (api) => {
+      const collectionId = await createCollectionExpectSuccess();
+      const changeAdminTx = api.tx.unique.addCollectionAdmin(collectionId, normalizeAccountId(Bob.address));
+      await submitTransactionAsync(Alice, changeAdminTx);
+      await waitNewBlocks(1);
+      //
+      const addAllowlistAdm = api.tx.unique.addToAllowList(collectionId, normalizeAccountId(Ferdie.address));
+      const destroyCollection = api.tx.unique.destroyCollection(collectionId);
+      await Promise.all([
+        addAllowlistAdm.signAndSend(Bob),
+        destroyCollection.signAndSend(Alice),
+      ]);
+      await waitNewBlocks(1);
+      let allowList = false;
+      allowList = (await api.query.unique.allowList(collectionId, Ferdie.address)).toJSON() as boolean;
+      // tslint:disable-next-line: no-unused-expression
+      expect(allowList).to.be.false;
+      await waitNewBlocks(2);
+    });
+  });
+});
+*/
\ No newline at end of file
addedtests/src/.outdated/collision-tests/adminLimitsOff.test.tsdiffbeforeafterboth
--- /dev/null
+++ b/tests/src/.outdated/collision-tests/adminLimitsOff.test.ts
@@ -0,0 +1,86 @@
+// Copyright 2019-2022 Unique Network (Gibraltar) Ltd.
+// This file is part of Unique Network.
+
+// Unique Network is free software: you can redistribute it and/or modify
+// it under the terms of the GNU General Public License as published by
+// the Free Software Foundation, either version 3 of the License, or
+// (at your option) any later version.
+
+// Unique Network is distributed in the hope that it will be useful,
+// but WITHOUT ANY WARRANTY; without even the implied warranty of
+// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+// GNU General Public License for more details.
+
+// You should have received a copy of the GNU General Public License
+// along with Unique Network. If not, see <http://www.gnu.org/licenses/>.
+
+/* broken by design
+// substrate transactions are sequential, not parallel
+// the order of execution is indeterminate
+
+import { IKeyringPair } from '@polkadot/types/types';
+import chai from 'chai';
+import chaiAsPromised from 'chai-as-promised';
+import privateKey from '../substrate/privateKey';
+import usingApi, { submitTransactionAsync, submitTransactionExpectFailAsync } from '../substrate/substrate-api';
+import {
+  createCollectionExpectSuccess,
+  normalizeAccountId,
+  waitNewBlocks,
+} from '../util/helpers';
+
+chai.use(chaiAsPromised);
+const expect = chai.expect;
+let Alice: IKeyringPair;
+let Bob: IKeyringPair;
+let Ferdie: IKeyringPair;
+let Charlie: IKeyringPair;
+let Eve: IKeyringPair;
+let Dave: IKeyringPair;
+
+before(async () => {
+  await usingApi(async () => {
+    Alice = privateKey('//Alice');
+    Bob = privateKey('//Bob');
+    Ferdie = privateKey('//Ferdie');
+    Charlie = privateKey('//Charlie');
+    Eve = privateKey('//Eve');
+    Dave = privateKey('//Dave');
+  });
+});
+
+describe('Admin limit exceeded collection: ', () => {
+  // tslint:disable-next-line: max-line-length
+  it('In one block, the owner and admin add new admins to the collection more than the limit ', async () => {
+    await usingApi(async (api) => {
+      const collectionId = await createCollectionExpectSuccess();
+
+      const chainAdminLimit = (api.consts.unique.collectionAdminsLimit as any).toNumber();
+      expect(chainAdminLimit).to.be.equal(5);
+
+      const changeAdminTx1 = api.tx.unique.addCollectionAdmin(collectionId, normalizeAccountId(Eve.address));
+      await submitTransactionAsync(Alice, changeAdminTx1);
+      const changeAdminTx2 = api.tx.unique.addCollectionAdmin(collectionId, normalizeAccountId(Dave.address));
+      await submitTransactionAsync(Alice, changeAdminTx2);
+      const changeAdminTx3 = api.tx.unique.addCollectionAdmin(collectionId, normalizeAccountId(Bob.address));
+      await submitTransactionAsync(Alice, changeAdminTx3);
+
+      const addAdmOne = api.tx.unique.addCollectionAdmin(collectionId, normalizeAccountId(Ferdie.address));
+      const addAdmTwo = api.tx.unique.addCollectionAdmin(collectionId, normalizeAccountId(Charlie.address));
+      await Promise.all([
+        addAdmOne.signAndSend(Bob),
+        addAdmTwo.signAndSend(Alice),
+      ]);
+      await waitNewBlocks(2);
+      const changeAdminTx4 = api.tx.unique.addCollectionAdmin(collectionId, normalizeAccountId(Alice.address));
+      await expect(submitTransactionExpectFailAsync(Alice, changeAdminTx4)).to.be.rejected;
+
+      const adminListAfterAddAdmin: any = (await api.query.unique.adminList(collectionId));
+      expect(adminListAfterAddAdmin).to.be.contains(normalizeAccountId(Eve.address));
+      expect(adminListAfterAddAdmin).to.be.contains(normalizeAccountId(Ferdie.address));
+      expect(adminListAfterAddAdmin).not.to.be.contains(normalizeAccountId(Alice.address));
+      await waitNewBlocks(2);
+    });
+  });
+});
+*/
\ No newline at end of file
addedtests/src/.outdated/collision-tests/adminRightsOff.test.tsdiffbeforeafterboth
--- /dev/null
+++ b/tests/src/.outdated/collision-tests/adminRightsOff.test.ts
@@ -0,0 +1,69 @@
+// Copyright 2019-2022 Unique Network (Gibraltar) Ltd.
+// This file is part of Unique Network.
+
+// Unique Network is free software: you can redistribute it and/or modify
+// it under the terms of the GNU General Public License as published by
+// the Free Software Foundation, either version 3 of the License, or
+// (at your option) any later version.
+
+// Unique Network is distributed in the hope that it will be useful,
+// but WITHOUT ANY WARRANTY; without even the implied warranty of
+// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+// GNU General Public License for more details.
+
+// You should have received a copy of the GNU General Public License
+// along with Unique Network. If not, see <http://www.gnu.org/licenses/>.
+
+/* broken by design
+// substrate transactions are sequential, not parallel
+// the order of execution is indeterminate
+
+import { IKeyringPair } from '@polkadot/types/types';
+import BN from 'bn.js';
+import chai from 'chai';
+import chaiAsPromised from 'chai-as-promised';
+import privateKey from '../substrate/privateKey';
+import usingApi, { submitTransactionAsync } from '../substrate/substrate-api';
+import {
+  createCollectionExpectSuccess,
+  normalizeAccountId,
+  waitNewBlocks,
+} from '../util/helpers';
+
+chai.use(chaiAsPromised);
+const expect = chai.expect;
+let Alice: IKeyringPair;
+let Bob: IKeyringPair;
+
+before(async () => {
+  await usingApi(async () => {
+    Alice = privateKey('//Alice');
+    Bob = privateKey('//Bob');
+  });
+});
+
+describe('Deprivation of admin rights: ', () => {
+  // tslint:disable-next-line: max-line-length
+  it('In the block, the collection admin adds a token or changes data, and the collection owner deprives the admin of rights ', async () => {
+    await usingApi(async (api) => {
+      const collectionId = await createCollectionExpectSuccess();
+      const changeAdminTx = api.tx.unique.addCollectionAdmin(collectionId, normalizeAccountId(Bob.address));
+      await submitTransactionAsync(Alice, changeAdminTx);
+      await waitNewBlocks(1);
+      const args = [{ nft: ['0x31', '0x31'] }, { nft: ['0x32', '0x32'] }, { nft: ['0x33', '0x33'] }];
+      const addItemAdm = api.tx.unique.createMultipleItems(collectionId, normalizeAccountId(Bob.address), args);
+      const removeAdm = api.tx.unique.removeCollectionAdmin(collectionId, normalizeAccountId(Bob.address));
+      await Promise.all([
+        addItemAdm.signAndSend(Bob),
+        removeAdm.signAndSend(Alice),
+      ]);
+      await waitNewBlocks(2);
+      const itemsListIndex = await api.query.unique.itemListIndex(collectionId) as unknown as BN;
+      expect(itemsListIndex.toNumber()).to.be.equal(0);
+      const adminList: any = (await api.query.unique.adminList(collectionId));
+      expect(adminList).not.to.be.contains(normalizeAccountId(Bob.address));
+      await waitNewBlocks(2);
+    });
+  });
+});
+*/
\ No newline at end of file
addedtests/src/.outdated/collision-tests/setSponsorNewOwner.test.tsdiffbeforeafterboth
--- /dev/null
+++ b/tests/src/.outdated/collision-tests/setSponsorNewOwner.test.ts
@@ -0,0 +1,67 @@
+// Copyright 2019-2022 Unique Network (Gibraltar) Ltd.
+// This file is part of Unique Network.
+
+// Unique Network is free software: you can redistribute it and/or modify
+// it under the terms of the GNU General Public License as published by
+// the Free Software Foundation, either version 3 of the License, or
+// (at your option) any later version.
+
+// Unique Network is distributed in the hope that it will be useful,
+// but WITHOUT ANY WARRANTY; without even the implied warranty of
+// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+// GNU General Public License for more details.
+
+// You should have received a copy of the GNU General Public License
+// along with Unique Network. If not, see <http://www.gnu.org/licenses/>.
+
+/* broken by design
+// substrate transactions are sequential, not parallel
+// the order of execution is indeterminate
+
+import { IKeyringPair } from '@polkadot/types/types';
+import chai from 'chai';
+import chaiAsPromised from 'chai-as-promised';
+import privateKey from '../substrate/privateKey';
+import usingApi from '../substrate/substrate-api';
+import {
+  createCollectionExpectSuccess,
+  setCollectionSponsorExpectSuccess,
+  waitNewBlocks,
+} from '../util/helpers';
+
+chai.use(chaiAsPromised);
+const expect = chai.expect;
+let Alice: IKeyringPair;
+let Bob: IKeyringPair;
+let Ferdie: IKeyringPair;
+
+before(async () => {
+  await usingApi(async () => {
+    Alice = privateKey('//Alice');
+    Bob = privateKey('//Bob');
+    Ferdie = privateKey('//Ferdie');
+  });
+});
+
+describe('Sponsored with new owner ', () => {
+  // tslint:disable-next-line: max-line-length
+  it('Confirmation of sponsorship of a collection in a block with a change in the owner of the collection: ', async () => {
+    await usingApi(async (api) => {
+      const collectionId = await createCollectionExpectSuccess();
+      await setCollectionSponsorExpectSuccess(collectionId, Bob.address);
+      await waitNewBlocks(2);
+      const confirmSponsorship = api.tx.unique.confirmSponsorship(collectionId);
+      const changeCollectionOwner = api.tx.unique.changeCollectionOwner(collectionId, Ferdie.address);
+      await Promise.all([
+        confirmSponsorship.signAndSend(Bob),
+        changeCollectionOwner.signAndSend(Alice),
+      ]);
+      await waitNewBlocks(2);
+      const collection: any = (await api.query.unique.collectionById(collectionId)).toJSON();
+      expect(collection.sponsorship.confirmed).to.be.eq(Bob.address);
+      expect(collection.owner).to.be.eq(Ferdie.address);
+      await waitNewBlocks(2);
+    });
+  });
+});
+*/
\ No newline at end of file
addedtests/src/.outdated/collision-tests/sponsorPayments.test.tsdiffbeforeafterboth
--- /dev/null
+++ b/tests/src/.outdated/collision-tests/sponsorPayments.test.ts
@@ -0,0 +1,76 @@
+// Copyright 2019-2022 Unique Network (Gibraltar) Ltd.
+// This file is part of Unique Network.
+
+// Unique Network is free software: you can redistribute it and/or modify
+// it under the terms of the GNU General Public License as published by
+// the Free Software Foundation, either version 3 of the License, or
+// (at your option) any later version.
+
+// Unique Network is distributed in the hope that it will be useful,
+// but WITHOUT ANY WARRANTY; without even the implied warranty of
+// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+// GNU General Public License for more details.
+
+// You should have received a copy of the GNU General Public License
+// along with Unique Network. If not, see <http://www.gnu.org/licenses/>.
+
+/* broken by design
+// substrate transactions are sequential, not parallel
+// the order of execution is indeterminate
+
+import { IKeyringPair } from '@polkadot/types/types';
+import chai from 'chai';
+import chaiAsPromised from 'chai-as-promised';
+import { alicesPublicKey, bobsPublicKey } from '../accounts';
+import getBalance from '../substrate/get-balance';
+import privateKey from '../substrate/privateKey';
+import usingApi, { submitTransactionAsync } from '../substrate/substrate-api';
+import {
+  confirmSponsorshipExpectSuccess,
+  createCollectionExpectSuccess,
+  createItemExpectSuccess,
+  setCollectionSponsorExpectSuccess,
+  normalizeAccountId,
+  waitNewBlocks,
+} from '../util/helpers';
+
+chai.use(chaiAsPromised);
+const expect = chai.expect;
+let Alice: IKeyringPair;
+let Bob: IKeyringPair;
+
+before(async () => {
+  await usingApi(async () => {
+    Alice = privateKey('//Alice');
+    Bob = privateKey('//Bob');
+  });
+});
+
+describe('Payment of commission if one block: ', () => {
+  // tslint:disable-next-line: max-line-length
+  it('Payment of commission if one block contains transactions for payment from the sponsor\'s balance and his (sponsor\'s) exclusion from the collection ', async () => {
+    await usingApi(async (api) => {
+      const collectionId = await createCollectionExpectSuccess();
+      const changeAdminTxBob = api.tx.unique.addCollectionAdmin(collectionId, normalizeAccountId(Bob.address));
+      await submitTransactionAsync(Alice, changeAdminTxBob);
+      const itemId = await createItemExpectSuccess(Bob, collectionId, 'NFT');
+      await setCollectionSponsorExpectSuccess(collectionId, Bob.address);
+      await confirmSponsorshipExpectSuccess(collectionId, '//Bob');
+
+      const [alicesBalanceBefore, bobsBalanceBefore] = await getBalance(api, [alicesPublicKey, bobsPublicKey]);
+      const sendItem = api.tx.unique.transfer(normalizeAccountId(Alice.address), collectionId, itemId, 1);
+      const revokeSponsor = api.tx.unique.removeCollectionSponsor(collectionId);
+      await Promise.all([
+        sendItem.signAndSend(Bob),
+        revokeSponsor.signAndSend(Alice),
+      ]);
+      const [alicesBalanceAfter, bobsBalanceAfter] = await getBalance(api, [alicesPublicKey, bobsPublicKey]);
+      // tslint:disable-next-line:no-unused-expression
+      expect(alicesBalanceAfter === alicesBalanceBefore).to.be.true;
+      // tslint:disable-next-line:no-unused-expression
+      expect(bobsBalanceAfter === bobsBalanceBefore).to.be.true;
+      await waitNewBlocks(2);
+    });
+  });
+});
+*/
\ No newline at end of file
addedtests/src/.outdated/collision-tests/tokenLimitsOff.test.tsdiffbeforeafterboth
--- /dev/null
+++ b/tests/src/.outdated/collision-tests/tokenLimitsOff.test.ts
@@ -0,0 +1,100 @@
+// Copyright 2019-2022 Unique Network (Gibraltar) Ltd.
+// This file is part of Unique Network.
+
+// Unique Network is free software: you can redistribute it and/or modify
+// it under the terms of the GNU General Public License as published by
+// the Free Software Foundation, either version 3 of the License, or
+// (at your option) any later version.
+
+// Unique Network is distributed in the hope that it will be useful,
+// but WITHOUT ANY WARRANTY; without even the implied warranty of
+// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+// GNU General Public License for more details.
+
+// You should have received a copy of the GNU General Public License
+// along with Unique Network. If not, see <http://www.gnu.org/licenses/>.
+
+/* broken by design
+// substrate transactions are sequential, not parallel
+// the order of execution is indeterminate
+
+import { IKeyringPair } from '@polkadot/types/types';
+import BN from 'bn.js';
+import chai from 'chai';
+import chaiAsPromised from 'chai-as-promised';
+import privateKey from '../substrate/privateKey';
+import usingApi, { submitTransactionAsync } from '../substrate/substrate-api';
+import {
+  addToAllowListExpectSuccess,
+  createCollectionExpectSuccess,
+  getCreateItemResult,
+  setMintPermissionExpectSuccess,
+  normalizeAccountId,
+  waitNewBlocks,
+} from '../util/helpers';
+
+chai.use(chaiAsPromised);
+const expect = chai.expect;
+let Alice: IKeyringPair;
+let Bob: IKeyringPair;
+let Ferdie: IKeyringPair;
+
+const accountTokenOwnershipLimit = 4;
+const sponsoredMintSize = 4294967295;
+const tokenLimit = 4;
+const sponsorTimeout = 14400;
+const ownerCanTransfer = false;
+const ownerCanDestroy = false;
+
+before(async () => {
+  await usingApi(async () => {
+    Alice = privateKey('//Alice');
+    Bob = privateKey('//Bob');
+    Ferdie = privateKey('//Ferdie');
+  });
+});
+
+describe('Token limit exceeded collection: ', () => {
+  // tslint:disable-next-line: max-line-length
+  it('The number of tokens created in the collection from different addresses exceeds the allowed collection limit ', async () => {
+    await usingApi(async (api) => {
+      const collectionId = await createCollectionExpectSuccess();
+      await setMintPermissionExpectSuccess(Alice, collectionId, true);
+      await addToAllowListExpectSuccess(Alice, collectionId, Ferdie.address);
+      await addToAllowListExpectSuccess(Alice, collectionId, Bob.address);
+      const setCollectionLim = api.tx.unique.setCollectionLimits(
+        collectionId,
+        {
+          accountTokenOwnershipLimit,
+          sponsoredMintSize,
+          tokenLimit,
+          // tslint:disable-next-line: object-literal-sort-keys
+          sponsorTimeout,
+          ownerCanTransfer,
+          ownerCanDestroy,
+        },
+      );
+      const subTx = await submitTransactionAsync(Alice, setCollectionLim);
+      const subTxTesult = getCreateItemResult(subTx);
+      // tslint:disable-next-line:no-unused-expression
+      expect(subTxTesult.success).to.be.true;
+      await waitNewBlocks(2);
+
+      const args = [{ nft: ['0x31', '0x31'] }, { nft: ['0x32', '0x32'] }, { nft: ['0x33', '0x33'] }];
+      const mintItemOne = api.tx.unique
+        .createMultipleItems(collectionId, normalizeAccountId(Ferdie.address), args);
+      const mintItemTwo = api.tx.unique
+        .createMultipleItems(collectionId, normalizeAccountId(Bob.address), args);
+      await Promise.all([
+        mintItemOne.signAndSend(Ferdie),
+        mintItemTwo.signAndSend(Bob),
+      ]);
+      await waitNewBlocks(2);
+      const itemsListIndexAfter = await api.query.unique.itemListIndex(collectionId) as unknown as BN;
+      expect(itemsListIndexAfter.toNumber()).to.be.equal(3);
+      // TokenLimit = 4. The first transaction is successful. The second should fail.
+      await waitNewBlocks(2);
+    });
+  });
+});
+*/
addedtests/src/.outdated/collision-tests/turnsOffMinting.test.tsdiffbeforeafterboth
--- /dev/null
+++ b/tests/src/.outdated/collision-tests/turnsOffMinting.test.ts
@@ -0,0 +1,68 @@
+// Copyright 2019-2022 Unique Network (Gibraltar) Ltd.
+// This file is part of Unique Network.
+
+// Unique Network is free software: you can redistribute it and/or modify
+// it under the terms of the GNU General Public License as published by
+// the Free Software Foundation, either version 3 of the License, or
+// (at your option) any later version.
+
+// Unique Network is distributed in the hope that it will be useful,
+// but WITHOUT ANY WARRANTY; without even the implied warranty of
+// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+// GNU General Public License for more details.
+
+// You should have received a copy of the GNU General Public License
+// along with Unique Network. If not, see <http://www.gnu.org/licenses/>.
+
+/* broken by design
+// substrate transactions are sequential, not parallel
+// the order of execution is indeterminate
+
+import { IKeyringPair } from '@polkadot/types/types';
+import chai from 'chai';
+import chaiAsPromised from 'chai-as-promised';
+import privateKey from '../substrate/privateKey';
+import usingApi from '../substrate/substrate-api';
+import {
+  addToAllowListExpectSuccess,
+  createCollectionExpectSuccess,
+  setMintPermissionExpectSuccess,
+  normalizeAccountId,
+  waitNewBlocks,
+} from '../util/helpers';
+
+chai.use(chaiAsPromised);
+const expect = chai.expect;
+let Alice: IKeyringPair;
+let Ferdie: IKeyringPair;
+
+before(async () => {
+  await usingApi(async () => {
+    Alice = privateKey('//Alice');
+    Ferdie = privateKey('//Ferdie');
+  });
+});
+
+describe('Turns off minting mode: ', () => {
+  // tslint:disable-next-line: max-line-length
+  it('The collection owner turns off minting mode and there are minting transactions in the same block ', async () => {
+    await usingApi(async (api) => {
+      const collectionId = await createCollectionExpectSuccess();
+      await setMintPermissionExpectSuccess(Alice, collectionId, true);
+      await addToAllowListExpectSuccess(Alice, collectionId, Ferdie.address);
+
+      const mintItem = api.tx.unique.createItem(collectionId, normalizeAccountId(Ferdie.address), 'NFT');
+      const offMinting = api.tx.unique.setMintPermission(collectionId, false);
+      await Promise.all([
+        mintItem.signAndSend(Ferdie),
+        offMinting.signAndSend(Alice),
+      ]);
+      let itemList = false;
+      itemList = (await (api.query.unique.nftItemList(collectionId, mintItem))).toJSON() as boolean;
+      // tslint:disable-next-line: no-unused-expression
+      expect(itemList).to.be.null;
+      await waitNewBlocks(2);
+    });
+  });
+});
+*/
\ No newline at end of file
addedtests/src/.outdated/contracts.test.tsdiffbeforeafterboth
--- /dev/null
+++ b/tests/src/.outdated/contracts.test.ts
@@ -0,0 +1,236 @@
+// Copyright 2019-2022 Unique Network (Gibraltar) Ltd.
+// This file is part of Unique Network.
+
+// Unique Network is free software: you can redistribute it and/or modify
+// it under the terms of the GNU General Public License as published by
+// the Free Software Foundation, either version 3 of the License, or
+// (at your option) any later version.
+
+// Unique Network is distributed in the hope that it will be useful,
+// but WITHOUT ANY WARRANTY; without even the implied warranty of
+// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+// GNU General Public License for more details.
+
+// You should have received a copy of the GNU General Public License
+// along with Unique Network. If not, see <http://www.gnu.org/licenses/>.
+
+import chai from 'chai';
+import chaiAsPromised from 'chai-as-promised';
+import usingApi, {submitTransactionAsync} from '../substrate/substrate-api';
+import fs from 'fs';
+import {Abi, ContractPromise as Contract} from '@polkadot/api-contract';
+import {deployFlipper, getFlipValue, deployTransferContract} from '../deprecated-helpers/contracthelpers';
+
+import {
+  addToAllowListExpectSuccess,
+  approveExpectSuccess,
+  createCollectionExpectSuccess,
+  createItemExpectSuccess,
+  enablePublicMintingExpectSuccess,
+  enableAllowListExpectSuccess,
+  getGenericResult,
+  normalizeAccountId,
+  isAllowlisted,
+  transferFromExpectSuccess,
+  getTokenOwner,
+} from '../deprecated-helpers/helpers';
+
+
+chai.use(chaiAsPromised);
+const expect = chai.expect;
+
+const value = 0;
+const gasLimit = 9000n * 1000000n;
+const marketContractAddress = '5CYN9j3YvRkqxewoxeSvRbhAym4465C57uMmX5j4yz99L5H6';
+
+// todo:playgrounds skipped ~ postponed
+describe.skip('Contracts', () => {
+  it('Can deploy smart contract Flipper, instantiate it and call it\'s get and flip messages.', async () => {
+    await usingApi(async (api, privateKeyWrapper) => {
+      const [contract, deployer] = await deployFlipper(api, privateKeyWrapper);
+      const initialGetResponse = await getFlipValue(contract, deployer);
+
+      const bob = privateKeyWrapper('//Bob');
+      const flip = contract.tx.flip({value, gasLimit});
+      await submitTransactionAsync(bob, flip);
+
+      const afterFlipGetResponse = await getFlipValue(contract, deployer);
+      expect(afterFlipGetResponse).not.to.be.eq(initialGetResponse, 'Flipping should change value.');
+    });
+  });
+
+  it('Can initialize contract instance', async () => {
+    await usingApi(async (api) => {
+      const metadata = JSON.parse(fs.readFileSync('./src/flipper/metadata.json').toString('utf-8'));
+      const abi = new Abi(metadata);
+      const newContractInstance = new Contract(api, abi, marketContractAddress);
+      expect(newContractInstance).to.have.property('address');
+      expect(newContractInstance.address.toString()).to.equal(marketContractAddress);
+    });
+  });
+});
+
+describe.skip('Chain extensions', () => {
+  it('Transfer CE', async () => {
+    await usingApi(async (api, privateKeyWrapper) => {
+      const alice = privateKeyWrapper('//Alice');
+      const bob = privateKeyWrapper('//Bob');
+
+      // Prep work
+      const collectionId = await createCollectionExpectSuccess();
+      const tokenId = await createItemExpectSuccess(alice, collectionId, 'NFT');
+      const [contract] = await deployTransferContract(api, privateKeyWrapper);
+      const changeAdminTx = api.tx.unique.addCollectionAdmin(collectionId, contract.address);
+      await submitTransactionAsync(alice, changeAdminTx);
+
+      expect(await getTokenOwner(api, collectionId, tokenId)).to.be.deep.equal(normalizeAccountId(alice.address));
+
+      // Transfer
+      const transferTx = contract.tx.transfer({value, gasLimit}, bob.address, collectionId, tokenId, 1);
+      const events = await submitTransactionAsync(alice, transferTx);
+      const result = getGenericResult(events);
+      expect(result.success).to.be.true;
+
+      expect(await getTokenOwner(api, collectionId, tokenId)).to.be.deep.equal(normalizeAccountId(bob.address));
+    });
+  });
+
+  it('Mint CE', async () => {
+    await usingApi(async (api, privateKeyWrapper) => {
+      const alice = privateKeyWrapper('//Alice');
+      const bob = privateKeyWrapper('//Bob');
+
+      const collectionId = await createCollectionExpectSuccess();
+      const [contract] = await deployTransferContract(api, privateKeyWrapper);
+      await enablePublicMintingExpectSuccess(alice, collectionId);
+      await enableAllowListExpectSuccess(alice, collectionId);
+      await addToAllowListExpectSuccess(alice, collectionId, contract.address);
+      await addToAllowListExpectSuccess(alice, collectionId, bob.address);
+
+      const transferTx = contract.tx.createItem({value, gasLimit}, bob.address, collectionId, {Nft: {const_data: '0x010203'}});
+      const events = await submitTransactionAsync(alice, transferTx);
+      const result = getGenericResult(events);
+      expect(result.success).to.be.true;
+
+      const tokensAfter = (await api.query.unique.nftItemList.entries(collectionId)).map((kv: any) => kv[1].toJSON());
+      expect(tokensAfter).to.be.deep.equal([
+        {
+          owner: bob.address,
+          constData: '0x010203',
+        },
+      ]);
+    });
+  });
+
+  it('Bulk mint CE', async () => {
+    await usingApi(async (api, privateKeyWrapper) => {
+      const alice = privateKeyWrapper('//Alice');
+      const bob = privateKeyWrapper('//Bob');
+
+      const collectionId = await createCollectionExpectSuccess();
+      const [contract] = await deployTransferContract(api, privateKeyWrapper);
+      await enablePublicMintingExpectSuccess(alice, collectionId);
+      await enableAllowListExpectSuccess(alice, collectionId);
+      await addToAllowListExpectSuccess(alice, collectionId, contract.address);
+      await addToAllowListExpectSuccess(alice, collectionId, bob.address);
+
+      const transferTx = contract.tx.createMultipleItems({value, gasLimit}, bob.address, collectionId, [
+        {NFT: {/*const_data: '0x010203'*/}},
+        {NFT: {/*const_data: '0x010204'*/}},
+        {NFT: {/*const_data: '0x010205'*/}},
+      ]);
+      const events = await submitTransactionAsync(alice, transferTx);
+      const result = getGenericResult(events);
+      expect(result.success).to.be.true;
+
+      const tokensAfter: any = (await api.query.unique.nftItemList.entries(collectionId) as any)
+        .map((kv: any) => kv[1].toJSON())
+        .sort((a: any, b: any) => a.constData.localeCompare(b.constData));
+      expect(tokensAfter).to.be.deep.equal([
+        {
+          Owner: bob.address,
+          //ConstData: '0x010203',
+        },
+        {
+          Owner: bob.address,
+          //ConstData: '0x010204',
+        },
+        {
+          Owner: bob.address,
+          //ConstData: '0x010205',
+        },
+      ]);
+    });
+  });
+
+  it('Approve CE', async () => {
+    await usingApi(async (api, privateKeyWrapper) => {
+      const alice = privateKeyWrapper('//Alice');
+      const bob = privateKeyWrapper('//Bob');
+      const charlie = privateKeyWrapper('//Charlie');
+
+      const collectionId = await createCollectionExpectSuccess();
+      const [contract] = await deployTransferContract(api, privateKeyWrapper);
+      const tokenId = await createItemExpectSuccess(alice, collectionId, 'NFT', contract.address.toString());
+
+      const transferTx = contract.tx.approve({value, gasLimit}, bob.address, collectionId, tokenId, 1);
+      const events = await submitTransactionAsync(alice, transferTx);
+      const result = getGenericResult(events);
+      expect(result.success).to.be.true;
+
+      await transferFromExpectSuccess(collectionId, tokenId, bob, normalizeAccountId(contract.address.toString()), charlie, 1, 'NFT');
+    });
+  });
+
+  it('TransferFrom CE', async () => {
+    await usingApi(async (api, privateKeyWrapper) => {
+      const alice = privateKeyWrapper('//Alice');
+      const bob = privateKeyWrapper('//Bob');
+      const charlie = privateKeyWrapper('//Charlie');
+
+      const collectionId = await createCollectionExpectSuccess();
+      const [contract] = await deployTransferContract(api, privateKeyWrapper);
+      const tokenId = await createItemExpectSuccess(alice, collectionId, 'NFT', bob.address);
+      await approveExpectSuccess(collectionId, tokenId, bob, contract.address.toString(), 1);
+
+      const transferTx = contract.tx.transferFrom({value, gasLimit}, bob.address, charlie.address, collectionId, tokenId, 1);
+      const events = await submitTransactionAsync(alice, transferTx);
+      const result = getGenericResult(events);
+      expect(result.success).to.be.true;
+
+      const token: any = (await api.query.unique.nftItemList(collectionId, tokenId) as any).unwrap();
+      expect(token.owner.toString()).to.be.equal(charlie.address);
+    });
+  });
+
+  it('ToggleAllowList CE', async () => {
+    await usingApi(async (api, privateKeyWrapper) => {
+      const alice = privateKeyWrapper('//Alice');
+      const bob = privateKeyWrapper('//Bob');
+
+      const collectionId = await createCollectionExpectSuccess();
+      const [contract] = await deployTransferContract(api, privateKeyWrapper);
+      const changeAdminTx = api.tx.unique.addCollectionAdmin(collectionId, contract.address);
+      await submitTransactionAsync(alice, changeAdminTx);
+
+      expect(await isAllowlisted(api, collectionId, bob.address)).to.be.false;
+
+      {
+        const transferTx = contract.tx.toggleAllowList({value, gasLimit}, collectionId, bob.address, true);
+        const events = await submitTransactionAsync(alice, transferTx);
+        const result = getGenericResult(events);
+        expect(result.success).to.be.true;
+
+        expect(await isAllowlisted(api, collectionId, bob.address)).to.be.true;
+      }
+      {
+        const transferTx = contract.tx.toggleAllowList({value, gasLimit}, collectionId, bob.address, false);
+        const events = await submitTransactionAsync(alice, transferTx);
+        const result = getGenericResult(events);
+        expect(result.success).to.be.true;
+
+        expect(await isAllowlisted(api, collectionId, bob.address)).to.be.false;
+      }
+    });
+  });
+});
addedtests/src/.outdated/enableContractSponsoring.test.tsdiffbeforeafterboth
--- /dev/null
+++ b/tests/src/.outdated/enableContractSponsoring.test.ts
@@ -0,0 +1,102 @@
+// Copyright 2019-2022 Unique Network (Gibraltar) Ltd.
+// This file is part of Unique Network.
+
+// Unique Network is free software: you can redistribute it and/or modify
+// it under the terms of the GNU General Public License as published by
+// the Free Software Foundation, either version 3 of the License, or
+// (at your option) any later version.
+
+// Unique Network is distributed in the hope that it will be useful,
+// but WITHOUT ANY WARRANTY; without even the implied warranty of
+// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+// GNU General Public License for more details.
+
+// You should have received a copy of the GNU General Public License
+// along with Unique Network. If not, see <http://www.gnu.org/licenses/>.
+
+import {IKeyringPair} from '@polkadot/types/types';
+import chai from 'chai';
+import chaiAsPromised from 'chai-as-promised';
+import usingApi from '../substrate/substrate-api';
+import {deployFlipper, getFlipValue, toggleFlipValueExpectSuccess} from '../deprecated-helpers/contracthelpers';
+import {
+  enableContractSponsoringExpectFailure,
+  enableContractSponsoringExpectSuccess,
+  findUnusedAddress,
+  setContractSponsoringRateLimitExpectSuccess,
+} from '../deprecated-helpers/helpers';
+
+chai.use(chaiAsPromised);
+const expect = chai.expect;
+
+// todo:playgrounds skipped ~ postponed
+describe.skip('Integration Test enableContractSponsoring', () => {
+  it('ensure tx fee is paid from endowment', async () => {
+    await usingApi(async (api, privateKeyWrapper) => {
+      const user = await findUnusedAddress(api, privateKeyWrapper);
+
+      const [flipper, deployer] = await deployFlipper(api, privateKeyWrapper);
+      await enableContractSponsoringExpectSuccess(deployer, flipper.address, true);
+      await setContractSponsoringRateLimitExpectSuccess(deployer, flipper.address, 1);
+      await toggleFlipValueExpectSuccess(user, flipper);
+
+      expect(await getFlipValue(flipper, deployer)).to.be.false;
+    });
+  });
+
+  it('ensure it can be enabled twice', async () => {
+    await usingApi(async (api, privateKeyWrapper) => {
+      const [flipper, deployer] = await deployFlipper(api, privateKeyWrapper);
+
+      await enableContractSponsoringExpectSuccess(deployer, flipper.address, true);
+      await enableContractSponsoringExpectSuccess(deployer, flipper.address, true);
+    });
+  });
+
+  it('ensure it can be disabled twice', async () => {
+    await usingApi(async (api, privateKeyWrapper) => {
+      const [flipper, deployer] = await deployFlipper(api, privateKeyWrapper);
+
+      await enableContractSponsoringExpectSuccess(deployer, flipper.address, true);
+      await enableContractSponsoringExpectSuccess(deployer, flipper.address, false);
+      await enableContractSponsoringExpectSuccess(deployer, flipper.address, false);
+    });
+  });
+
+  it('ensure it can be re-enabled', async () => {
+    await usingApi(async (api, privateKeyWrapper) => {
+      const [flipper, deployer] = await deployFlipper(api, privateKeyWrapper);
+
+      await enableContractSponsoringExpectSuccess(deployer, flipper.address, true);
+      await enableContractSponsoringExpectSuccess(deployer, flipper.address, false);
+      await enableContractSponsoringExpectSuccess(deployer, flipper.address, true);
+    });
+  });
+
+});
+
+describe.skip('Negative Integration Test enableContractSponsoring', () => {
+  let alice: IKeyringPair;
+
+  before(async () => {
+    await usingApi(async (api, privateKeyWrapper) => {
+      alice = privateKeyWrapper('//Alice');
+    });
+  });
+
+  it('fails when called for non-contract address', async () => {
+    await usingApi(async (api, privateKeyWrapper) => {
+      const user = await findUnusedAddress(api, privateKeyWrapper);
+
+      await enableContractSponsoringExpectFailure(alice, user.address, true);
+    });
+  });
+
+  it('fails when called by non-owning user', async () => {
+    await usingApi(async (api, privateKeyWrapper) => {
+      const [flipper] = await deployFlipper(api, privateKeyWrapper);
+
+      await enableContractSponsoringExpectFailure(alice, flipper.address, true);
+    });
+  });
+});
addedtests/src/.outdated/eth/scheduling.test.tsdiffbeforeafterboth
--- /dev/null
+++ b/tests/src/.outdated/eth/scheduling.test.ts
@@ -0,0 +1,59 @@
+// Copyright 2019-2022 Unique Network (Gibraltar) Ltd.
+// This file is part of Unique Network.
+
+// Unique Network is free software: you can redistribute it and/or modify
+// it under the terms of the GNU General Public License as published by
+// the Free Software Foundation, either version 3 of the License, or
+// (at your option) any later version.
+
+// Unique Network is distributed in the hope that it will be useful,
+// but WITHOUT ANY WARRANTY; without even the implied warranty of
+// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+// GNU General Public License for more details.
+
+// You should have received a copy of the GNU General Public License
+// along with Unique Network. If not, see <http://www.gnu.org/licenses/>.
+
+import {expect} from 'chai';
+import {createEthAccountWithBalance, deployFlipper, GAS_ARGS, itWeb3, subToEth, transferBalanceToEth} from '../../deprecated-helpers/eth/helpers';
+import {scheduleExpectSuccess, waitNewBlocks, requirePallets, Pallets} from '../../deprecated-helpers/helpers';
+
+// TODO mrshiposha update this test in #581
+describe.skip('Scheduing EVM smart contracts', () => {
+  before(async function() {
+    await requirePallets(this, [Pallets.Scheduler]);
+  });
+
+  itWeb3('Successfully schedules and periodically executes an EVM contract', async ({api, web3, privateKeyWrapper}) => {
+    const deployer = await createEthAccountWithBalance(api, web3, privateKeyWrapper);
+    const flipper = await deployFlipper(web3, deployer);
+    const initialValue = await flipper.methods.getValue().call();
+    const alice = privateKeyWrapper('//Alice');
+    await transferBalanceToEth(api, alice, subToEth(alice.address));
+
+    {
+      const tx = api.tx.evm.call(
+        subToEth(alice.address),
+        flipper.options.address,
+        flipper.methods.flip().encodeABI(),
+        '0',
+        GAS_ARGS.gas,
+        await web3.eth.getGasPrice(),
+        null,
+        null,
+        [],
+      );
+      const waitForBlocks = 4;
+      const periodBlocks = 2;
+
+      await scheduleExpectSuccess(tx, alice, waitForBlocks, '0x' + '0'.repeat(32), periodBlocks, 2);
+      expect(await flipper.methods.getValue().call()).to.be.equal(initialValue);
+      
+      await waitNewBlocks(waitForBlocks - 1);
+      expect(await flipper.methods.getValue().call()).to.be.not.equal(initialValue);
+  
+      await waitNewBlocks(periodBlocks);
+      expect(await flipper.methods.getValue().call()).to.be.equal(initialValue);
+    }
+  });
+});
addedtests/src/.outdated/flipper/flipper.wasmdiffbeforeafterboth

binary blob — no preview

addedtests/src/.outdated/flipper/metadata.jsondiffbeforeafterboth
--- /dev/null
+++ b/tests/src/.outdated/flipper/metadata.json
@@ -0,0 +1,110 @@
+{
+  "metadataVersion": "0.1.0",
+  "source": {
+    "hash": "0x5b02ceadaacee8408d3c6496394847092c099bcb897221dbe8d22c16d372fa17",
+    "language": "ink! 3.0.0-rc2",
+    "compiler": "rustc 1.51.0-nightly"
+  },
+  "contract": {
+    "name": "flipper",
+    "version": "0.1.0",
+    "authors": [
+      "[your_name] <[your_email]>"
+    ]
+  },
+  "spec": {
+    "constructors": [
+      {
+        "args": [
+          {
+            "name": "init_value",
+            "type": {
+              "displayName": [
+                "bool"
+              ],
+              "type": 1
+            }
+          }
+        ],
+        "docs": [
+          " Constructor that initializes the `bool` value to the given `init_value`."
+        ],
+        "name": [
+          "new"
+        ],
+        "selector": "0xd183512b"
+      },
+      {
+        "args": [],
+        "docs": [
+          " Constructor that initializes the `bool` value to `false`.",
+          "",
+          " Constructors can delegate to other constructors."
+        ],
+        "name": [
+          "default"
+        ],
+        "selector": "0x6a3712e2"
+      }
+    ],
+    "docs": [],
+    "events": [],
+    "messages": [
+      {
+        "args": [],
+        "docs": [
+          " A message that can be called on instantiated contracts.",
+          " This one flips the value of the stored `bool` from `true`",
+          " to `false` and vice versa."
+        ],
+        "mutates": true,
+        "name": [
+          "flip"
+        ],
+        "payable": false,
+        "returnType": null,
+        "selector": "0xc096a5f3"
+      },
+      {
+        "args": [],
+        "docs": [
+          " Simply returns the current value of our `bool`."
+        ],
+        "mutates": false,
+        "name": [
+          "get"
+        ],
+        "payable": false,
+        "returnType": {
+          "displayName": [
+            "bool"
+          ],
+          "type": 1
+        },
+        "selector": "0x1e5ca456"
+      }
+    ]
+  },
+  "storage": {
+    "struct": {
+      "fields": [
+        {
+          "layout": {
+            "cell": {
+              "key": "0x0000000000000000000000000000000000000000000000000000000000000000",
+              "ty": 1
+            }
+          },
+          "name": "value"
+        }
+      ]
+    }
+  },
+  "types": [
+    {
+      "def": {
+        "primitive": "bool"
+      }
+    }
+  ]
+}
\ No newline at end of file
addedtests/src/.outdated/load_test_sc/loadtester.wasmdiffbeforeafterboth

binary blob — no preview

addedtests/src/.outdated/load_test_sc/metadata.jsondiffbeforeafterboth
--- /dev/null
+++ b/tests/src/.outdated/load_test_sc/metadata.json
@@ -0,0 +1,125 @@
+{
+  "metadataVersion": "0.1.0",
+  "source": {
+    "hash": "0x168cc3cba9657ad3950fb506e568751f99b90fb097685107f6101675662a8303",
+    "language": "ink! 3.0.0-rc2",
+    "compiler": "rustc 1.49.0-nightly"
+  },
+  "contract": {
+    "name": "loadtester",
+    "version": "0.1.0",
+    "authors": [
+      "[your_name] <[your_email]>"
+    ]
+  },
+  "spec": {
+    "constructors": [
+      {
+        "args": [],
+        "docs": [],
+        "name": [
+          "new"
+        ],
+        "selector": "0xd183512b"
+      }
+    ],
+    "docs": [],
+    "events": [],
+    "messages": [
+      {
+        "args": [
+          {
+            "name": "count",
+            "type": {
+              "displayName": [
+                "u64"
+              ],
+              "type": 2
+            }
+          }
+        ],
+        "docs": [],
+        "mutates": true,
+        "name": [
+          "bloat"
+        ],
+        "payable": false,
+        "returnType": null,
+        "selector": "0x49891c2a"
+      },
+      {
+        "args": [],
+        "docs": [],
+        "mutates": false,
+        "name": [
+          "get"
+        ],
+        "payable": false,
+        "returnType": {
+          "displayName": [
+            "u128"
+          ],
+          "type": 3
+        },
+        "selector": "0x1e5ca456"
+      }
+    ]
+  },
+  "storage": {
+    "struct": {
+      "fields": [
+        {
+          "layout": {
+            "struct": {
+              "fields": [
+                {
+                  "layout": {
+                    "cell": {
+                      "key": "0x0000000000000000000000000000000000000000000000000000000000000000",
+                      "ty": 1
+                    }
+                  },
+                  "name": "len"
+                },
+                {
+                  "layout": {
+                    "array": {
+                      "cellsPerElem": 1,
+                      "layout": {
+                        "cell": {
+                          "key": "0x0000000001000000000000000000000000000000000000000000000000000000",
+                          "ty": 2
+                        }
+                      },
+                      "len": 4294967295,
+                      "offset": "0x0100000000000000000000000000000000000000000000000000000000000000"
+                    }
+                  },
+                  "name": "elems"
+                }
+              ]
+            }
+          },
+          "name": "vector"
+        }
+      ]
+    }
+  },
+  "types": [
+    {
+      "def": {
+        "primitive": "u32"
+      }
+    },
+    {
+      "def": {
+        "primitive": "u64"
+      }
+    },
+    {
+      "def": {
+        "primitive": "u128"
+      }
+    }
+  ]
+}
\ No newline at end of file
addedtests/src/.outdated/overflow.test.tsdiffbeforeafterboth
--- /dev/null
+++ b/tests/src/.outdated/overflow.test.ts
@@ -0,0 +1,73 @@
+// Copyright 2019-2022 Unique Network (Gibraltar) Ltd.
+// This file is part of Unique Network.
+
+// Unique Network is free software: you can redistribute it and/or modify
+// it under the terms of the GNU General Public License as published by
+// the Free Software Foundation, either version 3 of the License, or
+// (at your option) any later version.
+
+// Unique Network is distributed in the hope that it will be useful,
+// but WITHOUT ANY WARRANTY; without even the implied warranty of
+// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+// GNU General Public License for more details.
+
+// You should have received a copy of the GNU General Public License
+// along with Unique Network. If not, see <http://www.gnu.org/licenses/>.
+
+import {IKeyringPair} from '@polkadot/types/types';
+import chai from 'chai';
+import chaiAsPromised from 'chai-as-promised';
+import usingApi from '../substrate/substrate-api';
+import {approveExpectSuccess, createCollectionExpectSuccess, createFungibleItemExpectSuccess, getAllowance, getBalance, transferExpectFailure, transferExpectSuccess, transferFromExpectFail, transferFromExpectSuccess, U128_MAX} from '../deprecated-helpers/helpers';
+
+chai.use(chaiAsPromised);
+const expect = chai.expect;
+
+// todo:playgrounds skipped ~ postponed
+describe.skip('Integration Test fungible overflows', () => {
+  let alice: IKeyringPair;
+  let bob: IKeyringPair;
+  let charlie: IKeyringPair;
+
+  before(async () => {
+    await usingApi(async (api, privateKeyWrapper) => {
+      alice = privateKeyWrapper('//Alice');
+      bob = privateKeyWrapper('//Bob');
+      charlie = privateKeyWrapper('//Charlie');
+    });
+  });
+
+  it('fails when overflows on transfer', async () => {
+    await usingApi(async api => {
+      const fungibleCollectionId = await createCollectionExpectSuccess({mode: {type: 'Fungible', decimalPoints: 0}});
+
+      await createFungibleItemExpectSuccess(alice, fungibleCollectionId, {Value: U128_MAX});
+      await transferExpectSuccess(fungibleCollectionId, 0, alice, bob, U128_MAX, 'Fungible');
+
+      await createFungibleItemExpectSuccess(alice, fungibleCollectionId, {Value: 1n});
+      await transferExpectFailure(fungibleCollectionId, 0, alice, bob, 1);
+
+      expect(await getBalance(api, fungibleCollectionId, alice.address, 0)).to.equal(1n);
+      expect(await getBalance(api, fungibleCollectionId, bob.address, 0)).to.equal(U128_MAX);
+    });
+  });
+
+  it('fails when overflows on transferFrom', async () => {
+    await usingApi(async api => {
+      const fungibleCollectionId = await createCollectionExpectSuccess({mode: {type: 'Fungible', decimalPoints: 0}});
+      await createFungibleItemExpectSuccess(alice, fungibleCollectionId, {Value: U128_MAX});
+      await approveExpectSuccess(fungibleCollectionId, 0, alice, bob.address, U128_MAX);
+      await transferFromExpectSuccess(fungibleCollectionId, 0, bob, alice, charlie, U128_MAX, 'Fungible');
+
+      expect(await getBalance(api, fungibleCollectionId, charlie.address, 0)).to.equal(U128_MAX);
+      expect(await getAllowance(api, fungibleCollectionId, alice.address, bob.address, 0)).to.equal(0n);
+
+      await createFungibleItemExpectSuccess(alice, fungibleCollectionId, {Value: U128_MAX});
+      await approveExpectSuccess(fungibleCollectionId, 0, alice, bob.address, 1n);
+      await transferFromExpectFail(fungibleCollectionId, 0, bob, alice, charlie, 1);
+
+      expect(await getBalance(api, fungibleCollectionId, charlie.address, 0)).to.equal(U128_MAX);
+      expect(await getAllowance(api, fungibleCollectionId, alice.address, bob.address, 0)).to.equal(1n);
+    });
+  });
+});
addedtests/src/.outdated/removeFromContractAllowList.test.tsdiffbeforeafterboth
--- /dev/null
+++ b/tests/src/.outdated/removeFromContractAllowList.test.ts
@@ -0,0 +1,92 @@
+// Copyright 2019-2022 Unique Network (Gibraltar) Ltd.
+// This file is part of Unique Network.
+
+// Unique Network is free software: you can redistribute it and/or modify
+// it under the terms of the GNU General Public License as published by
+// the Free Software Foundation, either version 3 of the License, or
+// (at your option) any later version.
+
+// Unique Network is distributed in the hope that it will be useful,
+// but WITHOUT ANY WARRANTY; without even the implied warranty of
+// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+// GNU General Public License for more details.
+
+// You should have received a copy of the GNU General Public License
+// along with Unique Network. If not, see <http://www.gnu.org/licenses/>.
+
+import usingApi from '../substrate/substrate-api';
+import {deployFlipper, toggleFlipValueExpectFailure, toggleFlipValueExpectSuccess} from '../deprecated-helpers/contracthelpers';
+import {addToContractAllowListExpectSuccess, isAllowlistedInContract, removeFromContractAllowListExpectFailure, removeFromContractAllowListExpectSuccess, toggleContractAllowlistExpectSuccess} from '../deprecated-helpers/helpers';
+import {IKeyringPair} from '@polkadot/types/types';
+import {expect} from 'chai';
+
+// todo:playgrounds skipped again
+describe.skip('Integration Test removeFromContractAllowList', () => {
+  let bob: IKeyringPair;
+
+  before(async () => {
+    await usingApi(async (api, privateKeyWrapper) => {
+      bob = privateKeyWrapper('//Bob');
+    });
+  });
+
+  it('user is no longer allowlisted after removal', async () => {
+    await usingApi(async (api, privateKeyWrapper) => {
+      const [flipper, deployer] = await deployFlipper(api, privateKeyWrapper);
+
+      await addToContractAllowListExpectSuccess(deployer, flipper.address.toString(), bob.address);
+      await removeFromContractAllowListExpectSuccess(deployer, flipper.address.toString(), bob.address);
+
+      expect(await isAllowlistedInContract(flipper.address, bob.address)).to.be.false;
+    });
+  });
+
+  it('user can\'t execute contract after removal', async () => {
+    await usingApi(async (api, privateKeyWrapper) => {
+      const [flipper, deployer] = await deployFlipper(api, privateKeyWrapper);
+      await toggleContractAllowlistExpectSuccess(deployer, flipper.address.toString(), true);
+
+      await addToContractAllowListExpectSuccess(deployer, flipper.address.toString(), bob.address);
+      await toggleFlipValueExpectSuccess(bob, flipper);
+
+      await removeFromContractAllowListExpectSuccess(deployer, flipper.address.toString(), bob.address);
+      await toggleFlipValueExpectFailure(bob, flipper);
+    });
+  });
+
+  it('can be called twice', async () => {
+    await usingApi(async (api, privateKeyWrapper) => {
+      const [flipper, deployer] = await deployFlipper(api, privateKeyWrapper);
+
+      await addToContractAllowListExpectSuccess(deployer, flipper.address.toString(), bob.address);
+      await removeFromContractAllowListExpectSuccess(deployer, flipper.address.toString(), bob.address);
+      await removeFromContractAllowListExpectSuccess(deployer, flipper.address.toString(), bob.address);
+    });
+  });
+});
+
+describe.skip('Negative Integration Test removeFromContractAllowList', () => {
+  let alice: IKeyringPair;
+  let bob: IKeyringPair;
+
+  before(async () => {
+    await usingApi(async (api, privateKeyWrapper) => {
+      alice = privateKeyWrapper('//Alice');
+      bob = privateKeyWrapper('//Bob');
+    });
+  });
+
+  it('fails when called with non-contract address', async () => {
+    await usingApi(async () => {
+      await removeFromContractAllowListExpectFailure(alice, alice.address, bob.address);
+    });
+  });
+
+  it('fails when executed by non owner', async () => {
+    await usingApi(async (api, privateKeyWrapper) => {
+      const [flipper] = await deployFlipper(api, privateKeyWrapper);
+
+      await removeFromContractAllowListExpectFailure(alice, flipper.address.toString(), bob.address);
+    });
+  });
+});
addedtests/src/.outdated/scheduler.test.tsdiffbeforeafterboth
--- /dev/null
+++ b/tests/src/.outdated/scheduler.test.ts
@@ -0,0 +1,210 @@
+// Copyright 2019-2022 Unique Network (Gibraltar) Ltd.
+// This file is part of Unique Network.
+
+// Unique Network is free software: you can redistribute it and/or modify
+// it under the terms of the GNU General Public License as published by
+// the Free Software Foundation, either version 3 of the License, or
+// (at your option) any later version.
+
+// Unique Network is distributed in the hope that it will be useful,
+// but WITHOUT ANY WARRANTY; without even the implied warranty of
+// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+// GNU General Public License for more details.
+
+// You should have received a copy of the GNU General Public License
+// along with Unique Network. If not, see <http://www.gnu.org/licenses/>.
+
+import chai, {expect} from 'chai';
+import chaiAsPromised from 'chai-as-promised';
+import {
+  default as usingApi, 
+  submitTransactionAsync,
+} from '../substrate/substrate-api';
+import {
+  createItemExpectSuccess,
+  createCollectionExpectSuccess,
+  scheduleTransferExpectSuccess,
+  scheduleTransferAndWaitExpectSuccess,
+  setCollectionSponsorExpectSuccess,
+  confirmSponsorshipExpectSuccess,
+  findUnusedAddress,
+  UNIQUE,
+  enablePublicMintingExpectSuccess,
+  addToAllowListExpectSuccess,
+  waitNewBlocks,
+  normalizeAccountId,
+  getTokenOwner,
+  getGenericResult,
+  scheduleTransferFundsPeriodicExpectSuccess,
+  getFreeBalance,
+  confirmSponsorshipByKeyExpectSuccess,
+  scheduleExpectFailure,
+} from '../deprecated-helpers/helpers';
+import {IKeyringPair} from '@polkadot/types/types';
+
+chai.use(chaiAsPromised);
+
+// todo:playgrounds skipped ~ postponed
+describe.skip('Scheduling token and balance transfers', () => {
+  let alice: IKeyringPair;
+  let bob: IKeyringPair;
+  let scheduledIdBase: string;
+  let scheduledIdSlider: number;
+
+  before(async() => {
+    await usingApi(async (api, privateKeyWrapper) => {
+      alice = privateKeyWrapper('//Alice');
+      bob = privateKeyWrapper('//Bob');
+    });
+
+    scheduledIdBase = '0x' + '0'.repeat(31);
+    scheduledIdSlider = 0;
+  });
+
+  // Loop scheduledId around 10. Unless there are concurrent tasks with long periods/repetitions, tests' tasks' ids shouldn't ovelap.
+  function makeScheduledId(): string {
+    return scheduledIdBase + ((scheduledIdSlider++) % 10);
+  }
+
+  it('Can schedule a transfer of an owned token with delay', async () => {
+    await usingApi(async () => {
+      const nftCollectionId = await createCollectionExpectSuccess();
+      const newNftTokenId = await createItemExpectSuccess(alice, nftCollectionId, 'NFT');
+      await setCollectionSponsorExpectSuccess(nftCollectionId, alice.address);
+      await confirmSponsorshipExpectSuccess(nftCollectionId);
+
+      await scheduleTransferAndWaitExpectSuccess(nftCollectionId, newNftTokenId, alice, bob, 1, 4, makeScheduledId());
+    });
+  });
+
+  it('Can transfer funds periodically', async () => {
+    await usingApi(async () => {
+      const waitForBlocks = 4;
+      const period = 2;
+      await scheduleTransferFundsPeriodicExpectSuccess(1n * UNIQUE, alice, bob, waitForBlocks, makeScheduledId(), period, 2);
+      const bobsBalanceBefore = await getFreeBalance(bob);
+
+      // discounting already waited-for operations
+      await waitNewBlocks(waitForBlocks - 2);
+      const bobsBalanceAfterFirst = await getFreeBalance(bob);
+      expect(bobsBalanceAfterFirst > bobsBalanceBefore).to.be.true;
+
+      await waitNewBlocks(period);
+      const bobsBalanceAfterSecond = await getFreeBalance(bob);
+      expect(bobsBalanceAfterSecond > bobsBalanceAfterFirst).to.be.true;
+    });
+  });
+
+  it('Can sponsor scheduling a transaction', async () => {
+    const collectionId = await createCollectionExpectSuccess();
+    await setCollectionSponsorExpectSuccess(collectionId, bob.address);
+    await confirmSponsorshipExpectSuccess(collectionId, '//Bob');
+
+    await usingApi(async () => {
+      const tokenId = await createItemExpectSuccess(alice, collectionId, 'NFT', alice.address);
+
+      const bobBalanceBefore = await getFreeBalance(bob);
+      const waitForBlocks = 4;
+      // no need to wait to check, fees must be deducted on scheduling, immediately
+      await scheduleTransferExpectSuccess(collectionId, tokenId, alice, bob, 0, waitForBlocks, makeScheduledId());
+      const bobBalanceAfter = await getFreeBalance(bob);
+      // expect(aliceBalanceAfter == aliceBalanceBefore).to.be.true;
+      expect(bobBalanceAfter < bobBalanceBefore).to.be.true;
+      // wait for sequentiality matters
+      await waitNewBlocks(waitForBlocks - 1);
+    });
+  });
+
+  it('Schedules and dispatches a transaction even if the caller has no funds at the time of the dispatch', async () => {
+    await usingApi(async (api, privateKeyWrapper) => {
+      // Find an empty, unused account
+      const zeroBalance = await findUnusedAddress(api, privateKeyWrapper);
+
+      const collectionId = await createCollectionExpectSuccess();
+
+      // Add zeroBalance address to allow list
+      await enablePublicMintingExpectSuccess(alice, collectionId);
+      await addToAllowListExpectSuccess(alice, collectionId, zeroBalance.address);
+
+      // Grace zeroBalance with money, enough to cover future transactions
+      const balanceTx = api.tx.balances.transfer(zeroBalance.address, 1n * UNIQUE);
+      await submitTransactionAsync(alice, balanceTx);
+
+      // Mint a fresh NFT
+      const tokenId = await createItemExpectSuccess(zeroBalance, collectionId, 'NFT');
+
+      // Schedule transfer of the NFT a few blocks ahead
+      const waitForBlocks = 5;
+      await scheduleTransferExpectSuccess(collectionId, tokenId, zeroBalance, alice, 1, waitForBlocks, makeScheduledId());
+
+      // Get rid of the account's funds before the scheduled transaction takes place
+      const balanceTx2 = api.tx.balances.transfer(alice.address, UNIQUE * 68n / 100n);
+      const events = await submitTransactionAsync(zeroBalance, balanceTx2);
+      expect(getGenericResult(events).success).to.be.true;
+      /*const emptyBalanceTx = api.tx.balances.setBalance(zeroBalance.address, 0, 0); // do not null reserved?
+      const sudoTx = api.tx.sudo.sudo(emptyBalanceTx as any);
+      const events = await submitTransactionAsync(alice, sudoTx);
+      expect(getGenericResult(events).success).to.be.true;*/
+
+      // Wait for a certain number of blocks, discarding the ones that already happened while accepting the late transactions
+      await waitNewBlocks(waitForBlocks - 3);
+
+      expect(await getTokenOwner(api, collectionId, tokenId)).to.be.deep.equal(normalizeAccountId(alice.address));
+    });
+  });
+
+  it('Sponsor going bankrupt does not impact a scheduled transaction', async () => {
+    const collectionId = await createCollectionExpectSuccess();
+
+    await usingApi(async (api, privateKeyWrapper) => {
+      const zeroBalance = await findUnusedAddress(api, privateKeyWrapper);
+      const balanceTx = api.tx.balances.transfer(zeroBalance.address, 1n * UNIQUE);
+      await submitTransactionAsync(alice, balanceTx);
+
+      await setCollectionSponsorExpectSuccess(collectionId, zeroBalance.address);
+      await confirmSponsorshipByKeyExpectSuccess(collectionId, zeroBalance);
+
+      const tokenId = await createItemExpectSuccess(alice, collectionId, 'NFT', alice.address);
+
+      const waitForBlocks = 5;
+      await scheduleTransferExpectSuccess(collectionId, tokenId, alice, zeroBalance, 1, waitForBlocks, makeScheduledId());
+
+      const emptyBalanceSponsorTx = api.tx.balances.setBalance(zeroBalance.address, 0, 0);
+      const sudoTx = api.tx.sudo.sudo(emptyBalanceSponsorTx as any);
+      const events = await submitTransactionAsync(alice, sudoTx);
+      expect(getGenericResult(events).success).to.be.true;
+
+      // Wait for a certain number of blocks, save for the ones that already happened while accepting the late transactions
+      await waitNewBlocks(waitForBlocks - 3);
+
+      expect(await getTokenOwner(api, collectionId, tokenId)).to.be.deep.equal(normalizeAccountId(zeroBalance.address));
+    });
+  });
+
+  it.skip('Exceeding sponsor rate limit without having enough funds prevents scheduling a periodic transaction', async () => {
+    const collectionId = await createCollectionExpectSuccess();
+    await setCollectionSponsorExpectSuccess(collectionId, bob.address);
+    await confirmSponsorshipExpectSuccess(collectionId, '//Bob');
+
+    await usingApi(async (api, privateKeyWrapper) => {
+      const zeroBalance = await findUnusedAddress(api, privateKeyWrapper);
+
+      await enablePublicMintingExpectSuccess(alice, collectionId);
+      await addToAllowListExpectSuccess(alice, collectionId, zeroBalance.address);
+
+      const bobBalanceBefore = await getFreeBalance(bob);
+
+      const createData = {nft: {const_data: [], variable_data: []}};
+      const creationTx = api.tx.unique.createItem(collectionId, normalizeAccountId(zeroBalance), createData as any);
+
+      /*const badTransaction = async function () {
+        await submitTransactionExpectFailAsync(zeroBalance, zeroToAlice);
+      };
+      await expect(badTransaction()).to.be.rejectedWith('Inability to pay some fees');*/
+
+      await scheduleExpectFailure(creationTx, zeroBalance, 3, makeScheduledId(), 1, 3);
+
+      expect(await getFreeBalance(bob)).to.be.equal(bobBalanceBefore);
+    });
+  });
+});
addedtests/src/.outdated/setChainLimits.test.tsdiffbeforeafterboth
--- /dev/null
+++ b/tests/src/.outdated/setChainLimits.test.ts
@@ -0,0 +1,64 @@
+// Copyright 2019-2022 Unique Network (Gibraltar) Ltd.
+// This file is part of Unique Network.
+
+// Unique Network is free software: you can redistribute it and/or modify
+// it under the terms of the GNU General Public License as published by
+// the Free Software Foundation, either version 3 of the License, or
+// (at your option) any later version.
+
+// Unique Network is distributed in the hope that it will be useful,
+// but WITHOUT ANY WARRANTY; without even the implied warranty of
+// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+// GNU General Public License for more details.
+
+// You should have received a copy of the GNU General Public License
+// along with Unique Network. If not, see <http://www.gnu.org/licenses/>.
+
+import {IKeyringPair} from '@polkadot/types/types';
+import usingApi from '../substrate/substrate-api';
+import {
+  createCollectionExpectSuccess,
+  addCollectionAdminExpectSuccess,
+  setChainLimitsExpectFailure,
+  IChainLimits,
+} from '../deprecated-helpers/helpers';
+
+// todo:playgrounds skipped ~ postponed
+describe.skip('Negative Integration Test setChainLimits', () => {
+  let alice: IKeyringPair;
+  let bob: IKeyringPair;
+  let dave: IKeyringPair;
+  let limits: IChainLimits;
+
+  before(async () => {
+    await usingApi(async (api, privateKeyWrapper) => {
+      alice = privateKeyWrapper('//Alice');
+      bob = privateKeyWrapper('//Bob');
+      dave = privateKeyWrapper('//Dave');
+      limits = {
+        collectionNumbersLimit : 1,
+        accountTokenOwnershipLimit: 1,
+        collectionsAdminsLimit: 1,
+        customDataLimit: 1,
+        nftSponsorTransferTimeout: 1,
+        fungibleSponsorTransferTimeout: 1,
+        refungibleSponsorTransferTimeout: 1,
+      };
+    });
+  });
+
+  it('Collection owner cannot set chain limits', async () => {
+    await createCollectionExpectSuccess({mode: {type: 'NFT'}});
+    await setChainLimitsExpectFailure(alice, limits);
+  });
+
+  it('Collection admin cannot set chain limits', async () => {
+    const collectionId = await createCollectionExpectSuccess({mode: {type: 'NFT'}});
+    await addCollectionAdminExpectSuccess(alice, collectionId, bob.address);
+    await setChainLimitsExpectFailure(bob, limits);
+  });
+
+  it('Regular user cannot set chain limits', async () => {
+    await setChainLimitsExpectFailure(dave, limits);
+  });
+});
addedtests/src/.outdated/setContractSponsoringRateLimit.test.tsdiffbeforeafterboth
--- /dev/null
+++ b/tests/src/.outdated/setContractSponsoringRateLimit.test.ts
@@ -0,0 +1,80 @@
+// Copyright 2019-2022 Unique Network (Gibraltar) Ltd.
+// This file is part of Unique Network.
+
+// Unique Network is free software: you can redistribute it and/or modify
+// it under the terms of the GNU General Public License as published by
+// the Free Software Foundation, either version 3 of the License, or
+// (at your option) any later version.
+
+// Unique Network is distributed in the hope that it will be useful,
+// but WITHOUT ANY WARRANTY; without even the implied warranty of
+// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+// GNU General Public License for more details.
+
+// You should have received a copy of the GNU General Public License
+// along with Unique Network. If not, see <http://www.gnu.org/licenses/>.
+
+import {IKeyringPair} from '@polkadot/types/types';
+import usingApi from '../substrate/substrate-api';
+import waitNewBlocks from '../substrate/wait-new-blocks';
+import {deployFlipper, toggleFlipValueExpectFailure, toggleFlipValueExpectSuccess} from '../deprecated-helpers/contracthelpers';
+import {
+  enableContractSponsoringExpectSuccess,
+  findUnusedAddress,
+  setContractSponsoringRateLimitExpectFailure,
+  setContractSponsoringRateLimitExpectSuccess,
+} from '../deprecated-helpers/helpers';
+
+// todo:playgrounds skipped~postponed test
+describe.skip('Integration Test setContractSponsoringRateLimit', () => {
+  it('ensure sponsored contract can\'t be called twice without pause for free', async () => {
+    await usingApi(async (api, privateKeyWrapper) => {
+      const user = await findUnusedAddress(api, privateKeyWrapper);
+
+      const [flipper, deployer] = await deployFlipper(api, privateKeyWrapper);
+      await enableContractSponsoringExpectSuccess(deployer, flipper.address, true);
+      await setContractSponsoringRateLimitExpectSuccess(deployer, flipper.address, 10);
+      await toggleFlipValueExpectSuccess(user, flipper);
+      await toggleFlipValueExpectFailure(user, flipper);
+    });
+  });
+
+  it('ensure sponsored contract can be called twice with pause for free', async () => {
+    await usingApi(async (api, privateKeyWrapper) => {
+      const user = await findUnusedAddress(api, privateKeyWrapper);
+
+      const [flipper, deployer] = await deployFlipper(api, privateKeyWrapper);
+      await enableContractSponsoringExpectSuccess(deployer, flipper.address, true);
+      await setContractSponsoringRateLimitExpectSuccess(deployer, flipper.address, 1);
+      await toggleFlipValueExpectSuccess(user, flipper);
+      await waitNewBlocks(api, 1);
+      await toggleFlipValueExpectSuccess(user, flipper);
+    });
+  });
+});
+
+describe.skip('Negative Integration Test setContractSponsoringRateLimit', () => {
+  let alice: IKeyringPair;
+
+  before(async () => {
+    await usingApi(async (api, privateKeyWrapper) => {
+      alice = privateKeyWrapper('//Alice');
+    });
+  });
+
+  it('fails when called for non-contract address', async () => {
+    await usingApi(async (api, privateKeyWrapper) => {
+      const user = await findUnusedAddress(api, privateKeyWrapper);
+
+      await setContractSponsoringRateLimitExpectFailure(alice, user.address, 1);
+    });
+  });
+
+  it('fails when called by non-owning user', async () => {
+    await usingApi(async (api, privateKeyWrapper) => {
+      const [flipper] = await deployFlipper(api, privateKeyWrapper);
+
+      await setContractSponsoringRateLimitExpectFailure(alice, flipper.address, 1);
+    });
+  });
+});
addedtests/src/.outdated/toggleContractAllowList.test.tsdiffbeforeafterboth
--- /dev/null
+++ b/tests/src/.outdated/toggleContractAllowList.test.ts
@@ -0,0 +1,167 @@
+// Copyright 2019-2022 Unique Network (Gibraltar) Ltd.
+// This file is part of Unique Network.
+
+// Unique Network is free software: you can redistribute it and/or modify
+// it under the terms of the GNU General Public License as published by
+// the Free Software Foundation, either version 3 of the License, or
+// (at your option) any later version.
+
+// Unique Network is distributed in the hope that it will be useful,
+// but WITHOUT ANY WARRANTY; without even the implied warranty of
+// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+// GNU General Public License for more details.
+
+// You should have received a copy of the GNU General Public License
+// along with Unique Network. If not, see <http://www.gnu.org/licenses/>.
+
+import chai from 'chai';
+import chaiAsPromised from 'chai-as-promised';
+import usingApi, {submitTransactionAsync, submitTransactionExpectFailAsync} from '../substrate/substrate-api';
+import {
+  deployFlipper,
+  getFlipValue,
+} from '../deprecated-helpers/contracthelpers';
+import {
+  getGenericResult,
+} from '../deprecated-helpers/helpers';
+
+chai.use(chaiAsPromised);
+const expect = chai.expect;
+
+const value = 0;
+const gasLimit = 3000n * 1000000n;
+
+// todo:playgrounds skipped ~ postpone
+describe.skip('Integration Test toggleContractAllowList', () => {
+
+  it('Enable allow list contract mode', async () => {
+    await usingApi(async (api, privateKeyWrapper) => {
+      const [contract, deployer] = await deployFlipper(api, privateKeyWrapper);
+
+      const enabledBefore = (await api.query.unique.contractAllowListEnabled(contract.address)).toJSON();
+      const enableAllowListTx = api.tx.unique.toggleContractAllowList(contract.address, true);
+      const enableEvents = await submitTransactionAsync(deployer, enableAllowListTx);
+      const enabled = (await api.query.unique.contractAllowListEnabled(contract.address)).toJSON();
+
+      expect(getGenericResult(enableEvents).success).to.be.true;
+      expect(enabledBefore).to.be.false;
+      expect(enabled).to.be.true;
+    });
+  });
+
+  it('Only allowlisted account can call contract', async () => {
+    await usingApi(async (api, privateKeyWrapper) => {
+      const bob = privateKeyWrapper('//Bob');
+
+      const [contract, deployer] = await deployFlipper(api, privateKeyWrapper);
+
+      let flipValueBefore = await getFlipValue(contract, deployer);
+      const flip = contract.tx.flip({value, gasLimit});
+      await submitTransactionAsync(bob, flip);
+      const flipValueAfter = await getFlipValue(contract,deployer);
+      expect(flipValueAfter).to.be.eq(!flipValueBefore, 'Anyone can call new contract.');
+
+      const deployerCanFlip = async () => {
+        const flipValueBefore = await getFlipValue(contract, deployer);
+        const deployerFlip = contract.tx.flip({value, gasLimit});
+        await submitTransactionAsync(deployer, deployerFlip);
+        const aliceFlip1Response = await getFlipValue(contract, deployer);
+        expect(aliceFlip1Response).to.be.eq(!flipValueBefore, 'Deployer always can flip.');
+      };
+      await deployerCanFlip();
+
+      flipValueBefore = await getFlipValue(contract, deployer);
+      const enableAllowListTx = api.tx.unique.toggleContractAllowList(contract.address, true);
+      await submitTransactionAsync(deployer, enableAllowListTx);
+      const flipWithEnabledAllowList = contract.tx.flip({value, gasLimit});
+      await expect(submitTransactionExpectFailAsync(bob, flipWithEnabledAllowList)).to.be.rejected;
+      const flipValueAfterEnableAllowList = await getFlipValue(contract, deployer);
+      expect(flipValueAfterEnableAllowList).to.be.eq(flipValueBefore, 'Enabling allowlist doesn\'t make it possible to call contract for everyone.');
+
+      await deployerCanFlip();
+
+      flipValueBefore = await getFlipValue(contract, deployer);
+      const addBobToAllowListTx = api.tx.unique.addToContractAllowList(contract.address, bob.address);
+      await submitTransactionAsync(deployer, addBobToAllowListTx);
+      const flipWithAllowlistedBob = contract.tx.flip({value, gasLimit});
+      await submitTransactionAsync(bob, flipWithAllowlistedBob);
+      const flipAfterAllowListed = await getFlipValue(contract,deployer);
+      expect(flipAfterAllowListed).to.be.eq(!flipValueBefore, 'Bob was allowlisted, now he can flip.');
+
+      await deployerCanFlip();
+
+      flipValueBefore = await getFlipValue(contract, deployer);
+      const removeBobFromAllowListTx = api.tx.unique.removeFromContractAllowList(contract.address, bob.address);
+      await submitTransactionAsync(deployer, removeBobFromAllowListTx);
+      const bobRemoved = contract.tx.flip({value, gasLimit});
+      await expect(submitTransactionExpectFailAsync(bob, bobRemoved)).to.be.rejected;
+      const afterBobRemoved = await getFlipValue(contract, deployer);
+      expect(afterBobRemoved).to.be.eq(flipValueBefore, 'Bob can\'t call contract, now when he is removeed from allow list.');
+
+      await deployerCanFlip();
+
+      flipValueBefore = await getFlipValue(contract, deployer);
+      const disableAllowListTx = api.tx.unique.toggleContractAllowList(contract.address, false);
+      await submitTransactionAsync(deployer, disableAllowListTx);
+      const allowListDisabledFlip = contract.tx.flip({value, gasLimit});
+      await submitTransactionAsync(bob, allowListDisabledFlip);
+      const afterAllowListDisabled = await getFlipValue(contract,deployer);
+      expect(afterAllowListDisabled).to.be.eq(!flipValueBefore, 'Anyone can call contract with disabled allowlist.');
+
+    });
+  });
+
+  it('Enabling allow list repeatedly should not produce errors', async () => {
+    await usingApi(async (api, privateKeyWrapper) => {
+      const [contract, deployer] = await deployFlipper(api, privateKeyWrapper);
+
+      const enabledBefore = (await api.query.unique.contractAllowListEnabled(contract.address)).toJSON();
+      const enableAllowListTx = api.tx.unique.toggleContractAllowList(contract.address, true);
+      const enableEvents = await submitTransactionAsync(deployer, enableAllowListTx);
+      const enabled = (await api.query.unique.contractAllowListEnabled(contract.address)).toJSON();
+      const enableAgainEvents = await submitTransactionAsync(deployer, enableAllowListTx);
+      const enabledAgain = (await api.query.unique.contractAllowListEnabled(contract.address)).toJSON();
+
+      expect(getGenericResult(enableEvents).success).to.be.true;
+      expect(enabledBefore).to.be.false;
+      expect(enabled).to.be.true;
+      expect(getGenericResult(enableAgainEvents).success).to.be.true;
+      expect(enabledAgain).to.be.true;
+    });
+  });
+
+});
+
+describe.skip('Negative Integration Test toggleContractAllowList', () => {
+
+  it('Enable allow list for a non-contract', async () => {
+    await usingApi(async (api, privateKeyWrapper) => {
+      const alice = privateKeyWrapper('//Alice');
+      const bobGuineaPig = privateKeyWrapper('//Bob');
+
+      const enabledBefore = (await api.query.unique.contractAllowListEnabled(bobGuineaPig.address)).toJSON();
+      const enableAllowListTx = api.tx.unique.toggleContractAllowList(bobGuineaPig.address, true);
+      await expect(submitTransactionExpectFailAsync(alice, enableAllowListTx)).to.be.rejected;
+      const enabled = (await api.query.unique.contractAllowListEnabled(bobGuineaPig.address)).toJSON();
+
+      expect(enabledBefore).to.be.false;
+      expect(enabled).to.be.false;
+    });
+  });
+
+  it('Enable allow list using a non-owner address', async () => {
+    await usingApi(async (api, privateKeyWrapper) => {
+      const bob = privateKeyWrapper('//Bob');
+      const [contract] = await deployFlipper(api, privateKeyWrapper);
+
+      const enabledBefore = (await api.query.unique.contractAllowListEnabled(contract.address)).toJSON();
+      const enableAllowListTx = api.tx.unique.toggleContractAllowList(contract.address, true);
+      await expect(submitTransactionExpectFailAsync(bob, enableAllowListTx)).to.be.rejected;
+      const enabled = (await api.query.unique.contractAllowListEnabled(contract.address)).toJSON();
+
+      expect(enabledBefore).to.be.false;
+      expect(enabled).to.be.false;
+    });
+  });
+
+});
addedtests/src/.outdated/transfer_contract/metadata.jsondiffbeforeafterboth
--- /dev/null
+++ b/tests/src/.outdated/transfer_contract/metadata.json
@@ -0,0 +1,469 @@
+{
+  "metadataVersion": "0.1.0",
+  "source": {
+    "hash": "0xc6c3f47adeafe86d1674ed72c7179605787842f2f05a2d7da0dbabf3c4fa1aa8",
+    "language": "ink! 3.0.0-rc3",
+    "compiler": "rustc 1.52.0-nightly"
+  },
+  "contract": {
+    "name": "nft_transfer",
+    "version": "0.1.0",
+    "authors": [
+      "[Greg Zaitsev] <[your_email]>"
+    ]
+  },
+  "spec": {
+    "constructors": [
+      {
+        "args": [],
+        "docs": [
+          "Default Constructor",
+          "",
+          "Constructors can delegate to other constructors."
+        ],
+        "name": [
+          "default"
+        ],
+        "selector": "0xed4b9d1b"
+      }
+    ],
+    "docs": [],
+    "events": [],
+    "messages": [
+      {
+        "args": [
+          {
+            "name": "recipient",
+            "type": {
+              "displayName": [
+                "AccountId"
+              ],
+              "type": 1
+            }
+          },
+          {
+            "name": "collection_id",
+            "type": {
+              "displayName": [
+                "u32"
+              ],
+              "type": 4
+            }
+          },
+          {
+            "name": "token_id",
+            "type": {
+              "displayName": [
+                "u32"
+              ],
+              "type": 4
+            }
+          },
+          {
+            "name": "amount",
+            "type": {
+              "displayName": [
+                "u128"
+              ],
+              "type": 5
+            }
+          }
+        ],
+        "docs": [
+          " Transfer one NFT token"
+        ],
+        "mutates": true,
+        "name": [
+          "transfer"
+        ],
+        "payable": false,
+        "returnType": null,
+        "selector": "0x84a15da1"
+      },
+      {
+        "args": [
+          {
+            "name": "recipient",
+            "type": {
+              "displayName": [
+                "AccountId"
+              ],
+              "type": 1
+            }
+          },
+          {
+            "name": "collection_id",
+            "type": {
+              "displayName": [
+                "u32"
+              ],
+              "type": 4
+            }
+          },
+          {
+            "name": "data",
+            "type": {
+              "displayName": [
+                "CreateItemData"
+              ],
+              "type": 6
+            }
+          }
+        ],
+        "docs": [],
+        "mutates": true,
+        "name": [
+          "create_item"
+        ],
+        "payable": false,
+        "returnType": null,
+        "selector": "0xd7c3f083"
+      },
+      {
+        "args": [
+          {
+            "name": "owner",
+            "type": {
+              "displayName": [
+                "AccountId"
+              ],
+              "type": 1
+            }
+          },
+          {
+            "name": "collection_id",
+            "type": {
+              "displayName": [
+                "u32"
+              ],
+              "type": 4
+            }
+          },
+          {
+            "name": "data",
+            "type": {
+              "displayName": [
+                "Vec"
+              ],
+              "type": 8
+            }
+          }
+        ],
+        "docs": [],
+        "mutates": true,
+        "name": [
+          "create_multiple_items"
+        ],
+        "payable": false,
+        "returnType": null,
+        "selector": "0x15f9a1eb"
+      },
+      {
+        "args": [
+          {
+            "name": "spender",
+            "type": {
+              "displayName": [
+                "AccountId"
+              ],
+              "type": 1
+            }
+          },
+          {
+            "name": "collection_id",
+            "type": {
+              "displayName": [
+                "u32"
+              ],
+              "type": 4
+            }
+          },
+          {
+            "name": "item_id",
+            "type": {
+              "displayName": [
+                "u32"
+              ],
+              "type": 4
+            }
+          },
+          {
+            "name": "amount",
+            "type": {
+              "displayName": [
+                "u128"
+              ],
+              "type": 5
+            }
+          }
+        ],
+        "docs": [],
+        "mutates": true,
+        "name": [
+          "approve"
+        ],
+        "payable": false,
+        "returnType": null,
+        "selector": "0x681266a0"
+      },
+      {
+        "args": [
+          {
+            "name": "owner",
+            "type": {
+              "displayName": [
+                "AccountId"
+              ],
+              "type": 1
+            }
+          },
+          {
+            "name": "recipient",
+            "type": {
+              "displayName": [
+                "AccountId"
+              ],
+              "type": 1
+            }
+          },
+          {
+            "name": "collection_id",
+            "type": {
+              "displayName": [
+                "u32"
+              ],
+              "type": 4
+            }
+          },
+          {
+            "name": "item_id",
+            "type": {
+              "displayName": [
+                "u32"
+              ],
+              "type": 4
+            }
+          },
+          {
+            "name": "amount",
+            "type": {
+              "displayName": [
+                "u128"
+              ],
+              "type": 5
+            }
+          }
+        ],
+        "docs": [],
+        "mutates": true,
+        "name": [
+          "transfer_from"
+        ],
+        "payable": false,
+        "returnType": null,
+        "selector": "0x0b396f18"
+      },
+      {
+        "args": [
+          {
+            "name": "collection_id",
+            "type": {
+              "displayName": [
+                "u32"
+              ],
+              "type": 4
+            }
+          },
+          {
+            "name": "item_id",
+            "type": {
+              "displayName": [
+                "u32"
+              ],
+              "type": 4
+            }
+          },
+          {
+            "name": "data",
+            "type": {
+              "displayName": [
+                "Vec"
+              ],
+              "type": 7
+            }
+          }
+        ],
+        "docs": [],
+        "mutates": true,
+        "name": [
+          "set_variable_meta_data"
+        ],
+        "payable": false,
+        "returnType": null,
+        "selector": "0xb0b26da2"
+      },
+      {
+        "args": [
+          {
+            "name": "collection_id",
+            "type": {
+              "displayName": [
+                "u32"
+              ],
+              "type": 4
+            }
+          },
+          {
+            "name": "address",
+            "type": {
+              "displayName": [
+                "AccountId"
+              ],
+              "type": 1
+            }
+          },
+          {
+            "name": "allowlisted",
+            "type": {
+              "displayName": [
+                "bool"
+              ],
+              "type": 9
+            }
+          }
+        ],
+        "docs": [],
+        "mutates": true,
+        "name": [
+          "toggle_allow_list"
+        ],
+        "payable": false,
+        "returnType": null,
+        "selector": "0x98574dac"
+      }
+    ]
+  },
+  "storage": {
+    "struct": {
+      "fields": []
+    }
+  },
+  "types": [
+    {
+      "def": {
+        "composite": {
+          "fields": [
+            {
+              "type": 2,
+              "typeName": "[u8; 32]"
+            }
+          ]
+        }
+      },
+      "path": [
+        "ink_env",
+        "types",
+        "AccountId"
+      ]
+    },
+    {
+      "def": {
+        "array": {
+          "len": 32,
+          "type": 3
+        }
+      }
+    },
+    {
+      "def": {
+        "primitive": "u8"
+      }
+    },
+    {
+      "def": {
+        "primitive": "u32"
+      }
+    },
+    {
+      "def": {
+        "primitive": "u128"
+      }
+    },
+    {
+      "def": {
+        "variant": {
+          "variants": [
+            {
+              "fields": [
+                {
+                  "name": "const_data",
+                  "type": 7,
+                  "typeName": "Vec<u8>"
+                },
+                {
+                  "name": "variable_data",
+                  "type": 7,
+                  "typeName": "Vec<u8>"
+                }
+              ],
+              "name": "Nft"
+            },
+            {
+              "fields": [
+                {
+                  "name": "value",
+                  "type": 5,
+                  "typeName": "u128"
+                }
+              ],
+              "name": "Fungible"
+            },
+            {
+              "fields": [
+                {
+                  "name": "const_data",
+                  "type": 7,
+                  "typeName": "Vec<u8>"
+                },
+                {
+                  "name": "variable_data",
+                  "type": 7,
+                  "typeName": "Vec<u8>"
+                },
+                {
+                  "name": "pieces",
+                  "type": 5,
+                  "typeName": "u128"
+                }
+              ],
+              "name": "ReFungible"
+            }
+          ]
+        }
+      },
+      "path": [
+        "nft_transfer",
+        "CreateItemData"
+      ]
+    },
+    {
+      "def": {
+        "sequence": {
+          "type": 3
+        }
+      }
+    },
+    {
+      "def": {
+        "sequence": {
+          "type": 6
+        }
+      }
+    },
+    {
+      "def": {
+        "primitive": "bool"
+      }
+    }
+  ]
+}
\ No newline at end of file
addedtests/src/.outdated/transfer_contract/nft_transfer.wasmdiffbeforeafterboth

binary blob — no preview

addedtests/src/.outdated/xcmTransfer.test.tsdiffbeforeafterboth
--- /dev/null
+++ b/tests/src/.outdated/xcmTransfer.test.ts
@@ -0,0 +1,187 @@
+// Copyright 2019-2022 Unique Network (Gibraltar) Ltd.
+// This file is part of Unique Network.
+
+// Unique Network is free software: you can redistribute it and/or modify
+// it under the terms of the GNU General Public License as published by
+// the Free Software Foundation, either version 3 of the License, or
+// (at your option) any later version.
+
+// Unique Network is distributed in the hope that it will be useful,
+// but WITHOUT ANY WARRANTY; without even the implied warranty of
+// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+// GNU General Public License for more details.
+
+// You should have received a copy of the GNU General Public License
+// along with Unique Network. If not, see <http://www.gnu.org/licenses/>.
+
+import chai from 'chai';
+import chaiAsPromised from 'chai-as-promised';
+
+import {WsProvider} from '@polkadot/api';
+import {ApiOptions} from '@polkadot/api/types';
+import {IKeyringPair} from '@polkadot/types/types';
+import usingApi, {submitTransactionAsync} from '../substrate/substrate-api';
+import {getGenericResult} from '../deprecated-helpers/helpers';
+import waitNewBlocks from '../substrate/wait-new-blocks';
+import getBalance from '../substrate/get-balance';
+
+chai.use(chaiAsPromised);
+const expect = chai.expect;
+
+const UNIQUE_CHAIN = 1000;
+const KARURA_CHAIN = 2000;
+const KARURA_PORT = '9946';
+const TRANSFER_AMOUNT = 2000000000000000000000000n;
+
+// todo:playgrounds refit when XCM drops
+describe.skip('Integration test: Exchanging QTZ with Karura', () => {
+  let alice: IKeyringPair;
+
+  before(async () => {
+    await usingApi(async (api, privateKeyWrapper) => {
+      alice = privateKeyWrapper('//Alice');
+    });
+
+    const karuraApiOptions: ApiOptions = {
+      provider: new WsProvider('ws://127.0.0.1:' + KARURA_PORT),
+    };
+
+    await usingApi(async (api) => {
+      const destination = {
+        V0: {
+          X2: [
+            'Parent',
+            {
+              Parachain: UNIQUE_CHAIN,
+            },
+          ],
+        },
+      };
+
+      const metadata =
+      {
+        name: 'QTZ',
+        symbol: 'QTZ',
+        decimals: 18,
+        minimalBalance: 1,
+      };
+
+      const tx = api.tx.assetRegistry.registerForeignAsset(destination, metadata);
+      const sudoTx = api.tx.sudo.sudo(tx as any);
+      const events = await submitTransactionAsync(alice, sudoTx);
+      const result = getGenericResult(events);
+      expect(result.success).to.be.true;
+    }, karuraApiOptions);
+  });
+
+  it('Should connect and send QTZ to Karura', async () => {
+    let balanceOnKaruraBefore: bigint;
+
+    await usingApi(async (api) => {
+      const {free} = (await api.query.tokens.accounts(alice.addressRaw, {ForeignAssetId: 0})).toJSON() as any;
+      balanceOnKaruraBefore = free;
+    }, {provider: new WsProvider('ws://127.0.0.1:' + KARURA_PORT)});
+
+    await usingApi(async (api) => {
+      const destination = {
+        V0: {
+          X2: [
+            'Parent',
+            {
+              Parachain: KARURA_CHAIN,
+            },
+          ],
+        },
+      };
+
+      const beneficiary = {
+        V0: {
+          X1: {
+            AccountId32: {
+              network: 'Any',
+              id: alice.addressRaw,
+            },
+          },
+        },
+      };
+
+      const assets = {
+        V1: [
+          {
+            id: {
+              Concrete: {
+                parents: 0,
+                interior: 'Here',
+              },
+            },
+            fun: {
+              Fungible: TRANSFER_AMOUNT,
+            },
+          },
+        ],
+      };
+
+      const feeAssetItem = 0;
+
+      const weightLimit = {
+        Limited: 5000000000,
+      };
+
+      const tx = api.tx.polkadotXcm.limitedReserveTransferAssets(destination, beneficiary, assets, feeAssetItem, weightLimit);
+      const events = await submitTransactionAsync(alice, tx);
+      const result = getGenericResult(events);
+      expect(result.success).to.be.true;
+    });
+
+    await usingApi(async (api) => {
+      // todo do something about instant sealing, where there might not be any new blocks
+      await waitNewBlocks(api, 3);
+      const {free} = (await api.query.tokens.accounts(alice.addressRaw, {ForeignAssetId: 0})).toJSON() as any;
+      expect(free > balanceOnKaruraBefore).to.be.true;
+    }, {provider: new WsProvider('ws://127.0.0.1:' + KARURA_PORT)});
+  });
+
+  it('Should connect to Karura and send QTZ back', async () => {
+    let balanceBefore: bigint;
+
+    await usingApi(async (api) => {
+      [balanceBefore] = await getBalance(api, [alice.address]);
+    });
+
+    await usingApi(async (api) => {
+      const destination = {
+        V1: {
+          parents: 1,
+          interior: {
+            X2: [
+              {Parachain: UNIQUE_CHAIN},
+              {AccountId32: {
+                network: 'Any',
+                id: alice.addressRaw,
+              }},
+            ],
+          },
+        },
+      };
+
+      const id = {
+        ForeignAssetId: 0,
+      };
+
+      const amount = TRANSFER_AMOUNT;
+      const destWeight = 50000000;
+
+      const tx = api.tx.xTokens.transfer(id, amount, destination, destWeight);
+      const events = await submitTransactionAsync(alice, tx);
+      const result = getGenericResult(events);
+      expect(result.success).to.be.true;
+    }, {provider: new WsProvider('ws://127.0.0.1:' + KARURA_PORT)});
+
+    await usingApi(async (api) => {
+      // todo do something about instant sealing, where there might not be any new blocks
+      await waitNewBlocks(api, 3);
+      const [balanceAfter] = await getBalance(api, [alice.address]);
+      expect(balanceAfter > balanceBefore).to.be.true;
+    });
+  });
+});
modifiedtests/src/addCollectionAdmin.test.tsdiffbeforeafterboth
--- a/tests/src/addCollectionAdmin.test.ts
+++ b/tests/src/addCollectionAdmin.test.ts
@@ -110,7 +110,7 @@
     const [alice, ...accounts] = await helper.arrange.createAccounts([10n, 0n, 0n, 0n, 0n, 0n, 0n, 0n], donor);
     const collection = await helper.nft.mintCollection(alice, {name: 'Collection Name', description: 'Collection Description', tokenPrefix: 'COL'});
 
-    const chainAdminLimit = (helper.api!.consts.common.collectionAdminsLimit as any).toNumber();
+    const chainAdminLimit = (helper.getApi().consts.common.collectionAdminsLimit as any).toNumber();
     expect(chainAdminLimit).to.be.equal(5);
 
     for (let i = 0; i < chainAdminLimit; i++) {
deletedtests/src/addToContractAllowList.test.tsdiffbeforeafterboth
--- a/tests/src/addToContractAllowList.test.ts
+++ /dev/null
@@ -1,103 +0,0 @@
-// Copyright 2019-2022 Unique Network (Gibraltar) Ltd.
-// This file is part of Unique Network.
-
-// Unique Network is free software: you can redistribute it and/or modify
-// it under the terms of the GNU General Public License as published by
-// the Free Software Foundation, either version 3 of the License, or
-// (at your option) any later version.
-
-// Unique Network is distributed in the hope that it will be useful,
-// but WITHOUT ANY WARRANTY; without even the implied warranty of
-// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
-// GNU General Public License for more details.
-
-// You should have received a copy of the GNU General Public License
-// along with Unique Network. If not, see <http://www.gnu.org/licenses/>.
-
-import chai from 'chai';
-import chaiAsPromised from 'chai-as-promised';
-import usingApi, {submitTransactionAsync, submitTransactionExpectFailAsync} from './substrate/substrate-api';
-import {
-  deployFlipper,
-} from './util/contracthelpers';
-import {
-  getGenericResult,
-} from './util/helpers';
-
-chai.use(chaiAsPromised);
-const expect = chai.expect;
-
-// todo:playgrounds skipped ~ postponed
-describe.skip('Integration Test addToContractAllowList', () => {
-
-  it('Add an address to a contract allow list', async () => {
-    await usingApi(async (api, privateKeyWrapper) => {
-      const bob = privateKeyWrapper('//Bob');
-      const [contract, deployer] = await deployFlipper(api, privateKeyWrapper);
-
-      const allowListedBefore = (await api.query.unique.contractAllowList(contract.address, bob.address)).toJSON();
-      const addTx = api.tx.unique.addToContractAllowList(contract.address, bob.address);
-      const addEvents = await submitTransactionAsync(deployer, addTx);
-      const allowListedAfter = (await api.query.unique.contractAllowList(contract.address, bob.address)).toJSON();
-
-      expect(getGenericResult(addEvents).success).to.be.true;
-      expect(allowListedBefore).to.be.false;
-      expect(allowListedAfter).to.be.true;
-    });
-  });
-
-  it('Adding same address to allow list repeatedly should not produce errors', async () => {
-    await usingApi(async (api, privateKeyWrapper) => {
-      const bob = privateKeyWrapper('//Bob');
-      const [contract, deployer] = await deployFlipper(api, privateKeyWrapper);
-
-      const allowListedBefore = (await api.query.unique.contractAllowList(contract.address, bob.address)).toJSON();
-      const addTx = api.tx.unique.addToContractAllowList(contract.address, bob.address);
-      const addEvents = await submitTransactionAsync(deployer, addTx);
-      const allowListedAfter = (await api.query.unique.contractAllowList(contract.address, bob.address)).toJSON();
-      const addAgainEvents = await submitTransactionAsync(deployer, addTx);
-      const allowListedAgainAfter = (await api.query.unique.contractAllowList(contract.address, bob.address)).toJSON();
-
-      expect(getGenericResult(addEvents).success).to.be.true;
-      expect(allowListedBefore).to.be.false;
-      expect(allowListedAfter).to.be.true;
-      expect(getGenericResult(addAgainEvents).success).to.be.true;
-      expect(allowListedAgainAfter).to.be.true;
-    });
-  });
-});
-
-describe.skip('Negative Integration Test addToContractAllowList', () => {
-
-  it('Add an address to a allow list of a non-contract', async () => {
-    await usingApi(async (api, privateKeyWrapper) => {
-      const alice = privateKeyWrapper('//Bob');
-      const bob = privateKeyWrapper('//Bob');
-      const charlieGuineaPig = privateKeyWrapper('//Charlie');
-
-      const allowListedBefore = (await api.query.unique.contractAllowList(charlieGuineaPig.address, bob.address)).toJSON();
-      const addTx = api.tx.unique.addToContractAllowList(charlieGuineaPig.address, bob.address);
-      await expect(submitTransactionExpectFailAsync(alice, addTx)).to.be.rejected;
-      const allowListedAfter = (await api.query.unique.contractAllowList(charlieGuineaPig.address, bob.address)).toJSON();
-
-      expect(allowListedBefore).to.be.false;
-      expect(allowListedAfter).to.be.false;
-    });
-  });
-
-  it('Add to a contract allow list using a non-owner address', async () => {
-    await usingApi(async (api, privateKeyWrapper) => {
-      const bob = privateKeyWrapper('//Bob');
-      const [contract] = await deployFlipper(api, privateKeyWrapper);
-
-      const allowListedBefore = (await api.query.unique.contractAllowList(contract.address, bob.address)).toJSON();
-      const addTx = api.tx.unique.addToContractAllowList(contract.address, bob.address);
-      await expect(submitTransactionExpectFailAsync(bob, addTx)).to.be.rejected;
-      const allowListedAfter = (await api.query.unique.contractAllowList(contract.address, bob.address)).toJSON();
-
-      expect(allowListedBefore).to.be.false;
-      expect(allowListedAfter).to.be.false;
-    });
-  });
-
-});
modifiedtests/src/app-promotion.test.tsdiffbeforeafterboth
--- a/tests/src/app-promotion.test.ts
+++ b/tests/src/app-promotion.test.ts
@@ -15,17 +15,11 @@
 // along with Unique Network. If not, see <http://www.gnu.org/licenses/>.
 
 import {IKeyringPair} from '@polkadot/types/types';
-import {
-  normalizeAccountId,
-  getModuleNames,
-  Pallets,
-} from './util/helpers';
-import {itSub, usingPlaygrounds} from './util/playgrounds';
+import {itSub, usingPlaygrounds, Pallets, requirePalletsOrSkip} from './util/playgrounds';
 import {encodeAddress} from '@polkadot/util-crypto';
 import {stringToU8a} from '@polkadot/util';
-import {SponsoringMode} from './eth/util/helpers';
 import {DevUniqueHelper} from './util/playgrounds/unique.dev';
-import {itEth, expect} from './eth/util/playgrounds';
+import {itEth, expect, SponsoringMode} from './eth/util/playgrounds';
 
 let alice: IKeyringPair;
 let palletAdmin: IKeyringPair;
@@ -42,10 +36,11 @@
 describe('App promotion', () => {
   before(async function () {
     await usingPlaygrounds(async (helper, privateKey) => {
-      if (!getModuleNames(helper.api!).includes(Pallets.AppPromotion)) this.skip();
+      requirePalletsOrSkip(this, helper, [Pallets.AppPromotion]);
       alice = await privateKey({filename: __filename});
       [palletAdmin] = await helper.arrange.createAccounts([100n], alice);
-      await helper.signTransaction(alice, helper.api!.tx.sudo.sudo(helper.api!.tx.appPromotion.setAdminAddress({Substrate: palletAdmin.address})));
+      const api = helper.getApi();
+      await helper.signTransaction(alice, api.tx.sudo.sudo(api.tx.appPromotion.setAdminAddress({Substrate: palletAdmin.address})));
       nominal = helper.balance.getOneTokenNominal();
       await helper.balance.transferToSubstrate(alice, palletAdmin.address, 1000n * nominal);
       await helper.balance.transferToSubstrate(alice, palletAddress, 1000n * nominal);
@@ -231,54 +226,59 @@
   
   describe('admin adress', () => {
     itSub('can be set by sudo only', async ({helper}) => {
+      const api = helper.getApi();
       const nonAdmin = accounts.pop()!;
       // nonAdmin can not set admin not from himself nor as a sudo
-      await expect(helper.signTransaction(nonAdmin, helper.api!.tx.appPromotion.setAdminAddress({Substrate: nonAdmin.address}))).to.be.rejected;
-      await expect(helper.signTransaction(nonAdmin, helper.api!.tx.sudo.sudo(helper.api!.tx.appPromotion.setAdminAddress({Substrate: nonAdmin.address})))).to.be.rejected;
+      await expect(helper.signTransaction(nonAdmin, api.tx.appPromotion.setAdminAddress({Substrate: nonAdmin.address}))).to.be.rejected;
+      await expect(helper.signTransaction(nonAdmin, api.tx.sudo.sudo(api.tx.appPromotion.setAdminAddress({Substrate: nonAdmin.address})))).to.be.rejected;
   
       // Alice can
-      await expect(helper.signTransaction(alice, helper.api!.tx.sudo.sudo(helper.api!.tx.appPromotion.setAdminAddress({Substrate: palletAdmin.address})))).to.be.fulfilled;
+      await expect(helper.signTransaction(alice, api.tx.sudo.sudo(api.tx.appPromotion.setAdminAddress({Substrate: palletAdmin.address})))).to.be.fulfilled;
     });
     
     itSub('can be any valid CrossAccountId', async ({helper}) => {
       // We are not going to set an eth address as a sponsor,
       // but we do want to check, it doesn't break anything;
+      const api = helper.getApi();
       const account = accounts.pop()!;
       const ethAccount = helper.address.substrateToEth(account.address); 
       // Alice sets Ethereum address as a sudo. Then Substrate address back...
-      await expect(helper.signTransaction(alice, helper.api!.tx.sudo.sudo(helper.api!.tx.appPromotion.setAdminAddress({Ethereum: ethAccount})))).to.be.fulfilled;
-      await expect(helper.signTransaction(alice, helper.api!.tx.sudo.sudo(helper.api!.tx.appPromotion.setAdminAddress({Substrate: palletAdmin.address})))).to.be.fulfilled;
+      await expect(helper.signTransaction(alice, api.tx.sudo.sudo(api.tx.appPromotion.setAdminAddress({Ethereum: ethAccount})))).to.be.fulfilled;
+      await expect(helper.signTransaction(alice, api.tx.sudo.sudo(api.tx.appPromotion.setAdminAddress({Substrate: palletAdmin.address})))).to.be.fulfilled;
         
       // ...It doesn't break anything;
       const collection = await helper.nft.mintCollection(account, {name: 'New', description: 'New Collection', tokenPrefix: 'Promotion'});
-      await expect(helper.signTransaction(account, helper.api!.tx.appPromotion.sponsorCollection(collection.collectionId))).to.be.rejected;
+      await expect(helper.signTransaction(account, api.tx.appPromotion.sponsorCollection(collection.collectionId))).to.be.rejected;
     });
   
     itSub('can be reassigned', async ({helper}) => {
+      const api = helper.getApi();
       const [oldAdmin, newAdmin, collectionOwner] = [accounts.pop()!, accounts.pop()!, accounts.pop()!];
       const collection  = await helper.nft.mintCollection(collectionOwner, {name: 'New', description: 'New Collection', tokenPrefix: 'Promotion'});
         
-      await expect(helper.signTransaction(alice, helper.api!.tx.sudo.sudo(helper.api!.tx.appPromotion.setAdminAddress(normalizeAccountId(oldAdmin))))).to.be.fulfilled;
-      await expect(helper.signTransaction(alice, helper.api!.tx.sudo.sudo(helper.api!.tx.appPromotion.setAdminAddress(normalizeAccountId(newAdmin))))).to.be.fulfilled;
-      await expect(helper.signTransaction(oldAdmin, helper.api!.tx.appPromotion.sponsorCollection(collection.collectionId))).to.be.rejected;
+      await expect(helper.signTransaction(alice, api.tx.sudo.sudo(api.tx.appPromotion.setAdminAddress({Substrate: oldAdmin.address})))).to.be.fulfilled;
+      await expect(helper.signTransaction(alice, api.tx.sudo.sudo(api.tx.appPromotion.setAdminAddress({Substrate: newAdmin.address})))).to.be.fulfilled;
+      await expect(helper.signTransaction(oldAdmin, api.tx.appPromotion.sponsorCollection(collection.collectionId))).to.be.rejected;
         
-      await expect(helper.signTransaction(newAdmin, helper.api!.tx.appPromotion.sponsorCollection(collection.collectionId))).to.be.fulfilled;
+      await expect(helper.signTransaction(newAdmin, api.tx.appPromotion.sponsorCollection(collection.collectionId))).to.be.fulfilled;
     });
   });
   
   describe('collection sponsoring', () => {
     before(async function () {
       await usingPlaygrounds(async (helper) => {
-        const tx = helper.api!.tx.sudo.sudo(helper.api!.tx.appPromotion.setAdminAddress({Substrate: palletAdmin.address}));
+        const api = helper.getApi();
+        const tx = api.tx.sudo.sudo(api.tx.appPromotion.setAdminAddress({Substrate: palletAdmin.address}));
         await helper.signTransaction(alice, tx);
       });
     });
   
     itSub('should actually sponsor transactions', async ({helper}) => {
+      const api = helper.getApi();
       const [collectionOwner, tokenSender, receiver] = [accounts.pop()!, accounts.pop()!, accounts.pop()!];
       const collection = await helper.nft.mintCollection(collectionOwner, {name: 'Name', description: 'Description', tokenPrefix: 'Prefix', limits: {sponsorTransferTimeout: 0}});
       const token = await collection.mintToken(collectionOwner, {Substrate: tokenSender.address});
-      await helper.signTransaction(palletAdmin, helper.api!.tx.appPromotion.sponsorCollection(collection.collectionId));
+      await helper.signTransaction(palletAdmin, api.tx.appPromotion.sponsorCollection(collection.collectionId));
       const palletBalanceBefore = await helper.balance.getSubstrate(palletAddress);
   
       await token.transfer(tokenSender, {Substrate: receiver.address});
@@ -291,41 +291,44 @@
     });
   
     itSub('can not be set by non admin', async ({helper}) => {
+      const api = helper.getApi();
       const [collectionOwner, nonAdmin] = [accounts.pop()!, accounts.pop()!];
   
       const collection  = await helper.nft.mintCollection(collectionOwner, {name: 'New', description: 'New Collection', tokenPrefix: 'Promotion'});
         
-      await expect(helper.signTransaction(nonAdmin, helper.api!.tx.appPromotion.sponsorCollection(collection.collectionId))).to.be.rejected;
+      await expect(helper.signTransaction(nonAdmin, api.tx.appPromotion.sponsorCollection(collection.collectionId))).to.be.rejected;
       expect((await collection.getData())?.raw.sponsorship).to.equal('Disabled');
     });
   
     itSub('should set pallet address as confirmed admin', async ({helper}) => {
+      const api = helper.getApi();
       const [collectionOwner, oldSponsor] = [accounts.pop()!, accounts.pop()!];
         
       // Can set sponsoring for collection without sponsor
       const collectionWithoutSponsor = await helper.nft.mintCollection(collectionOwner, {name: 'No-sponsor', description: 'New Collection', tokenPrefix: 'Promotion'});
-      await expect(helper.signTransaction(palletAdmin, helper.api!.tx.appPromotion.sponsorCollection(collectionWithoutSponsor.collectionId))).to.be.fulfilled;
+      await expect(helper.signTransaction(palletAdmin, api.tx.appPromotion.sponsorCollection(collectionWithoutSponsor.collectionId))).to.be.fulfilled;
       expect((await collectionWithoutSponsor.getData())?.raw.sponsorship).to.be.deep.equal({Confirmed: palletAddress});
   
       // Can set sponsoring for collection with unconfirmed sponsor
       const collectionWithUnconfirmedSponsor = await helper.nft.mintCollection(collectionOwner, {name: 'Unconfirmed', description: 'New Collection', tokenPrefix: 'Promotion', pendingSponsor: oldSponsor.address});
       expect((await collectionWithUnconfirmedSponsor.getData())?.raw.sponsorship).to.be.deep.equal({Unconfirmed: oldSponsor.address});
-      await expect(helper.signTransaction(palletAdmin, helper.api!.tx.appPromotion.sponsorCollection(collectionWithUnconfirmedSponsor.collectionId))).to.be.fulfilled;
+      await expect(helper.signTransaction(palletAdmin, api.tx.appPromotion.sponsorCollection(collectionWithUnconfirmedSponsor.collectionId))).to.be.fulfilled;
       expect((await collectionWithUnconfirmedSponsor.getData())?.raw.sponsorship).to.be.deep.equal({Confirmed: palletAddress});
   
       // Can set sponsoring for collection with confirmed sponsor
       const collectionWithConfirmedSponsor = await helper.nft.mintCollection(collectionOwner, {name: 'Confirmed', description: 'New Collection', tokenPrefix: 'Promotion', pendingSponsor: oldSponsor.address});
       await collectionWithConfirmedSponsor.confirmSponsorship(oldSponsor);
-      await expect(helper.signTransaction(palletAdmin, helper.api!.tx.appPromotion.sponsorCollection(collectionWithConfirmedSponsor.collectionId))).to.be.fulfilled;
+      await expect(helper.signTransaction(palletAdmin, api.tx.appPromotion.sponsorCollection(collectionWithConfirmedSponsor.collectionId))).to.be.fulfilled;
       expect((await collectionWithConfirmedSponsor.getData())?.raw.sponsorship).to.be.deep.equal({Confirmed: palletAddress});
     });
   
     itSub('can be overwritten by collection owner', async ({helper}) => {    
+      const api = helper.getApi();
       const [collectionOwner, newSponsor] = [accounts.pop()!, accounts.pop()!];
       const collection  = await helper.nft.mintCollection(collectionOwner, {name: 'New', description: 'New Collection', tokenPrefix: 'Promotion'});
       const collectionId = collection.collectionId;
         
-      await expect(helper.signTransaction(palletAdmin, helper.api!.tx.appPromotion.sponsorCollection(collectionId))).to.be.fulfilled;
+      await expect(helper.signTransaction(palletAdmin, api.tx.appPromotion.sponsorCollection(collectionId))).to.be.fulfilled;
         
       // Collection limits still can be changed by the owner
       expect(await collection.setLimits(collectionOwner, {sponsorTransferTimeout: 0})).to.be.true;
@@ -338,44 +341,48 @@
     });
     
     itSub('should not overwrite collection limits set by the owner earlier', async ({helper}) => {
+      const api = helper.getApi();
       const limits = {ownerCanDestroy: true, ownerCanTransfer: true, sponsorTransferTimeout: 0};
       const collectionWithLimits = await helper.nft.mintCollection(alice, {name: 'New', description: 'New Collection', tokenPrefix: 'Promotion', limits});
   
-      await expect(helper.signTransaction(palletAdmin, helper.api!.tx.appPromotion.sponsorCollection(collectionWithLimits.collectionId))).to.be.fulfilled;
+      await expect(helper.signTransaction(palletAdmin, api.tx.appPromotion.sponsorCollection(collectionWithLimits.collectionId))).to.be.fulfilled;
       expect((await collectionWithLimits.getData())?.raw.limits).to.be.deep.contain(limits);
     });
     
     itSub('should reject transaction if collection doesn\'t exist', async ({helper}) => {
+      const api = helper.getApi();
       const collectionOwner = accounts.pop()!;
         
       // collection has never existed
-      await expect(helper.signTransaction(palletAdmin, helper.api!.tx.appPromotion.sponsorCollection(999999999))).to.be.rejected;
+      await expect(helper.signTransaction(palletAdmin, api.tx.appPromotion.sponsorCollection(999999999))).to.be.rejected;
       // collection has been burned
       const collection = await helper.nft.mintCollection(collectionOwner, {name: 'New', description: 'New Collection', tokenPrefix: 'Promotion'});
       await collection.burn(collectionOwner);
   
-      await expect(helper.signTransaction(palletAdmin, helper.api!.tx.appPromotion.sponsorCollection(collection.collectionId))).to.be.rejected;
+      await expect(helper.signTransaction(palletAdmin, api.tx.appPromotion.sponsorCollection(collection.collectionId))).to.be.rejected;
     });
   });
   
   describe('stopSponsoringCollection', () => {
-    itSub('can not be called by non-admin', async ({helper}) => {    
+    itSub('can not be called by non-admin', async ({helper}) => {
+      const api = helper.getApi();
       const [collectionOwner, nonAdmin] = [accounts.pop()!, accounts.pop()!];
       const collection = await helper.nft.mintCollection(collectionOwner, {name: 'New', description: 'New Collection', tokenPrefix: 'Promotion'});
         
-      await expect(helper.signTransaction(palletAdmin, helper.api!.tx.appPromotion.sponsorCollection(collection.collectionId))).to.be.fulfilled;
+      await expect(helper.signTransaction(palletAdmin, api.tx.appPromotion.sponsorCollection(collection.collectionId))).to.be.fulfilled;
         
-      await expect(helper.signTransaction(nonAdmin, helper.api!.tx.appPromotion.stopSponsoringCollection(collection.collectionId))).to.be.rejected;
+      await expect(helper.signTransaction(nonAdmin, api.tx.appPromotion.stopSponsoringCollection(collection.collectionId))).to.be.rejected;
       expect((await collection.getData())?.raw.sponsorship).to.be.deep.equal({Confirmed: palletAddress});
     });
   
     itSub('should set sponsoring as disabled', async ({helper}) => {
+      const api = helper.getApi();
       const [collectionOwner, recepient] = [accounts.pop()!, accounts.pop()!];
       const collection = await helper.nft.mintCollection(collectionOwner, {name: 'New', description: 'New Collection', tokenPrefix: 'Promotion', limits: {sponsorTransferTimeout: 0}});
       const token = await collection.mintToken(collectionOwner, {Substrate: collectionOwner.address});
         
-      await helper.signTransaction(palletAdmin, helper.api!.tx.appPromotion.sponsorCollection(collection.collectionId));
-      await helper.signTransaction(palletAdmin, helper.api!.tx.appPromotion.stopSponsoringCollection(collection.collectionId));
+      await helper.signTransaction(palletAdmin, api.tx.appPromotion.sponsorCollection(collection.collectionId));
+      await helper.signTransaction(palletAdmin, api.tx.appPromotion.stopSponsoringCollection(collection.collectionId));
         
       expect((await collection.getData())?.raw.sponsorship).to.be.equal('Disabled');
   
@@ -387,11 +394,12 @@
     });
   
     itSub('should not affect collection which is not sponsored by pallete', async ({helper}) => {
+      const api = helper.getApi();
       const collectionOwner = accounts.pop()!;
       const collection = await helper.nft.mintCollection(collectionOwner, {name: 'New', description: 'New Collection', tokenPrefix: 'Promotion', pendingSponsor: collectionOwner.address});
       await collection.confirmSponsorship(collectionOwner);
         
-      await expect(helper.signTransaction(palletAdmin, helper.api!.tx.appPromotion.stopSponsoringCollection(collection.collectionId))).to.be.rejected;
+      await expect(helper.signTransaction(palletAdmin, api.tx.appPromotion.stopSponsoringCollection(collection.collectionId))).to.be.rejected;
         
       expect((await collection.getData())?.raw.sponsorship).to.be.deep.equal({Confirmed: collectionOwner.address});
     });
@@ -415,8 +423,8 @@
       await helper.executeExtrinsic(palletAdmin, 'api.tx.appPromotion.sponsorContract', [flipper.options.address]);
       
       expect(await contractHelper.methods.hasSponsor(flipper.options.address).call()).to.be.true;  
-      expect((await helper.api!.query.evmContractHelpers.owner(flipper.options.address)).toJSON()).to.be.equal(contractOwner);  
-      expect((await helper.api!.query.evmContractHelpers.sponsoring(flipper.options.address)).toJSON()).to.deep.equal({
+      expect((await helper.callRpc('api.query.evmContractHelpers.owner', [flipper.options.address])).toJSON()).to.be.equal(contractOwner);  
+      expect((await helper.callRpc('api.query.evmContractHelpers.sponsoring', [flipper.options.address])).toJSON()).to.deep.equal({
         confirmed: {
           substrate: palletAddress,
         },
@@ -431,7 +439,7 @@
       await expect(contractHelper.methods.selfSponsoredEnable(flipper.options.address).send()).to.be.fulfilled;
   
       // Contract is self sponsored
-      expect((await helper.api!.query.evmContractHelpers.sponsoring(flipper.options.address)).toJSON()).to.be.deep.equal({
+      expect((await helper.callRpc('api.query.evmContractHelpers.sponsoring', [flipper.options.address])).toJSON()).to.be.deep.equal({
         confirmed: {
           ethereum: flipper.options.address.toLowerCase(),
         },
@@ -462,8 +470,8 @@
       await expect(contractHelper.methods.selfSponsoredEnable(flipper.options.address).send()).to.be.not.rejected;
   
       expect(await contractHelper.methods.hasSponsor(flipper.options.address).call()).to.be.true;  
-      expect((await helper.api!.query.evmContractHelpers.owner(flipper.options.address)).toJSON()).to.be.equal(contractOwner);  
-      expect((await helper.api!.query.evmContractHelpers.sponsoring(flipper.options.address)).toJSON()).to.deep.equal({
+      expect((await helper.callRpc('api.query.evmContractHelpers.owner', [flipper.options.address])).toJSON()).to.be.equal(contractOwner);  
+      expect((await helper.callRpc('api.query.evmContractHelpers.sponsoring', [flipper.options.address])).toJSON()).to.deep.equal({
         confirmed: {
           ethereum: flipper.options.address.toLowerCase(),
         },
@@ -482,7 +490,7 @@
       await expect(helper.executeExtrinsic(nonAdmin, 'api.tx.appPromotion.sponsorContract', [flipper.options.address], true)).to.be.rejectedWith('appPromotion.NoPermission');
   
       // contract still self-sponsored 
-      expect((await helper.api!.query.evmContractHelpers.sponsoring(flipper.options.address)).toJSON()).to.deep.equal({
+      expect((await helper.callRpc('api.query.evmContractHelpers.sponsoring', [flipper.options.address])).toJSON()).to.deep.equal({
         confirmed: {
           ethereum: flipper.options.address.toLowerCase(),
         },
@@ -505,7 +513,7 @@
       await helper.eth.transferBalanceFromSubstrate(alice, flipper.options.address, 1000n); // transferBalanceToEth(api, alice, flipper.options.address, 1000n);
   
       // Set promotion to the Flipper
-      await helper.signTransaction(palletAdmin, helper.api!.tx.appPromotion.sponsorContract(flipper.options.address));
+      await helper.executeExtrinsic(palletAdmin, 'api.tx.appPromotion.sponsorContract', [flipper.options.address], true);
   
       // Caller calls Flipper
       await flipper.methods.flip().send({from: caller});
@@ -536,8 +544,8 @@
       await helper.executeExtrinsic(palletAdmin, 'api.tx.appPromotion.stopSponsoringContract', [flipper.options.address], true);
   
       expect(await contractHelper.methods.hasSponsor(flipper.options.address).call()).to.be.false;  
-      expect((await helper.api!.query.evmContractHelpers.owner(flipper.options.address)).toJSON()).to.be.equal(contractOwner);  
-      expect((await helper.api!.query.evmContractHelpers.sponsoring(flipper.options.address)).toJSON()).to.deep.equal({
+      expect((await helper.callRpc('api.query.evmContractHelpers.owner', [flipper.options.address])).toJSON()).to.be.equal(contractOwner);  
+      expect((await helper.callRpc('api.query.evmContractHelpers.sponsoring', [flipper.options.address])).toJSON()).to.deep.equal({
         disabled: null,
       });
   
@@ -717,7 +725,7 @@
 // Wait while promotion period less than specified block, to avoid boundary cases
 // 0 if this should be the beginning of the period.
 async function waitPromotionPeriodDoesntEnd(helper: DevUniqueHelper, waitBlockLessThan = LOCKING_PERIOD / 3n) {
-  const relayBlockNumber = (await helper.api!.query.parachainSystem.validationData()).value.relayParentNumber.toNumber(); // await helper.chain.getLatestBlockNumber();
+  const relayBlockNumber = (await helper.callRpc('api.query.parachainSystem.validationData', [])).value.relayParentNumber.toNumber(); // await helper.chain.getLatestBlockNumber();
   const currentPeriodBlock = BigInt(relayBlockNumber) % LOCKING_PERIOD;
 
   if (currentPeriodBlock > waitBlockLessThan) {
modifiedtests/src/approve.test.tsdiffbeforeafterboth
--- a/tests/src/approve.test.ts
+++ b/tests/src/approve.test.ts
@@ -60,7 +60,7 @@
     const {tokenId} = await helper.nft.mintToken(alice, {collectionId: collectionId, owner: alice.address});
     await helper.nft.approveToken(alice, collectionId, tokenId, {Substrate: bob.address});
     expect(await helper.nft.isTokenApproved(collectionId, tokenId, {Substrate: bob.address})).to.be.true;
-    await helper.signTransaction(alice, helper.api?.tx.unique.approve({Substrate: bob.address}, collectionId, tokenId, 0));
+    await helper.signTransaction(alice, helper.constructApiCall('api.tx.unique.approve', [{Substrate: bob.address}, collectionId, tokenId, 0]));
     expect(await helper.nft.isTokenApproved(collectionId, tokenId, {Substrate: bob.address})).to.be.false;
   });
 
@@ -275,7 +275,7 @@
     const {tokenId} = await helper.nft.mintToken(alice, {collectionId: collectionId, owner: alice.address});
     await helper.nft.approveToken(alice, collectionId, tokenId, {Substrate: bob.address});
     expect(await helper.nft.isTokenApproved(collectionId, tokenId, {Substrate: bob.address})).to.be.true;
-    await helper.signTransaction(alice, helper.api?.tx.unique.approve({Substrate: bob.address}, collectionId, tokenId, 0));
+    await helper.signTransaction(alice, helper.constructApiCall('api.tx.unique.approve', [{Substrate: bob.address}, collectionId, tokenId, 0]));
     expect(await helper.nft.isTokenApproved(collectionId, tokenId, {Substrate: bob.address})).to.be.false;
     const transferTokenFromTx = async () => helper.nft.transferTokenFrom(bob, collectionId, tokenId, {Substrate: bob.address}, {Substrate: bob.address});
     await expect(transferTokenFromTx()).to.be.rejected;
@@ -328,7 +328,7 @@
   itSub('1 for NFT', async ({helper}) => {
     const {collectionId} = await helper.nft.mintCollection(alice, {name: 'col', description: 'descr', tokenPrefix: 'COL'});
     const {tokenId} = await helper.nft.mintToken(alice, {collectionId: collectionId, owner: bob.address});
-    const approveTx = async () => helper.signTransaction(bob, helper.api?.tx.unique.approve({Substrate: charlie.address}, collectionId, tokenId, 2));
+    const approveTx = async () => helper.signTransaction(bob, helper.constructApiCall('api.tx.unique.approve', [{Substrate: charlie.address}, collectionId, tokenId, 2]));
     await expect(approveTx()).to.be.rejected;
     expect(await helper.nft.isTokenApproved(collectionId, tokenId, {Substrate: charlie.address})).to.be.false;
   });
deletedtests/src/balance-transfer-contract/calls.wasmdiffbeforeafterboth

binary blob — no preview

deletedtests/src/balance-transfer-contract/metadata.jsondiffbeforeafterboth
--- a/tests/src/balance-transfer-contract/metadata.json
+++ /dev/null
@@ -1,96 +0,0 @@
-{
-  "registry": {
-    "strings": [
-      "Storage",
-      "calls",
-      "__ink_private",
-      "__ink_storage",
-      "new",
-      "balance_transfer",
-      "dest",
-      "AccountId",
-      "value",
-      "Balance"
-    ],
-    "types": [
-      {
-        "id": {
-          "custom.name": 1,
-          "custom.namespace": [
-            2,
-            2,
-            3,
-            4
-          ],
-          "custom.params": []
-        },
-        "def": {
-          "struct.fields": []
-        }
-      },
-      {
-        "id": {
-          "array.len": 32,
-          "array.type": 3
-        },
-        "def": "builtin"
-      },
-      {
-        "id": "u8",
-        "def": "builtin"
-      },
-      {
-        "id": "u128",
-        "def": "builtin"
-      }
-    ]
-  },
-  "storage": {
-    "struct.type": 1,
-    "struct.fields": []
-  },
-  "contract": {
-    "name": 2,
-    "constructors": [
-      {
-        "name": 5,
-        "selector": "[\"0x5E\",\"0xBD\",\"0x88\",\"0xD6\"]",
-        "args": [],
-        "docs": []
-      }
-    ],
-    "messages": [
-      {
-        "name": 6,
-        "selector": "[\"0xEC\",\"0x9F\",\"0xA4\",\"0xF0\"]",
-        "mutates": false,
-        "args": [
-          {
-            "name": 7,
-            "type": {
-              "ty": 2,
-              "display_name": [
-                8
-              ]
-            }
-          },
-          {
-            "name": 9,
-            "type": {
-              "ty": 4,
-              "display_name": [
-                10
-              ]
-            }
-          }
-        ],
-        "return_type": null,
-        "docs": [
-          "Dispatches a `transfer` call to the Balances srml module"
-        ]
-      }
-    ],
-    "events": [],
-    "docs": []
-  }
-}
\ No newline at end of file
modifiedtests/src/block-production.test.tsdiffbeforeafterboth
--- a/tests/src/block-production.test.ts
+++ b/tests/src/block-production.test.ts
@@ -37,7 +37,7 @@
 
 describe('Block Production smoke test', () => {
   itSub('Node produces new blocks', async ({helper}) => {
-    const blocks: number[] | undefined = await getBlocks(helper.api!);
+    const blocks: number[] | undefined = await getBlocks(helper.getApi());
     expect(blocks[0]).to.be.lessThan(blocks[1]);
   });
 });
modifiedtests/src/calibrate.tsdiffbeforeafterboth
--- a/tests/src/calibrate.ts
+++ b/tests/src/calibrate.ts
@@ -1,11 +1,8 @@
-import {ApiPromise} from '@polkadot/api';
 import {IKeyringPair} from '@polkadot/types/types';
-import Web3 from 'web3';
-import {collectionIdToAddress, createEthAccount, createEthAccountWithBalance, GAS_ARGS, recordEthFee, usingWeb3} from './eth/util/helpers';
-import usingApi, {executeTransaction} from './substrate/substrate-api';
-import {createCollectionExpectSuccess, createItemExpectSuccess, transferExpectSuccess, UNIQUE, waitNewBlocks} from './util/helpers';
-import nonFungibleAbi from './eth/nonFungibleAbi.json';
 
+import {usingEthPlaygrounds, EthUniqueHelper} from './eth/util/playgrounds';
+
+
 function linearRegression(points: { x: bigint, y: bigint }[]) {
   let sumxy = 0n;
   let sumx = 0n;
@@ -59,32 +56,33 @@
   }).reduce((a, b) => a + b, 0n) / BigInt(points.length));
 }
 
-async function calibrateWeightToFee(api: ApiPromise, privateKey: (account: string) => IKeyringPair) {
+async function calibrateWeightToFee(helper: EthUniqueHelper, privateKey: (account: string) => IKeyringPair) {
   const alice = privateKey('//Alice');
   const bob = privateKey('//Bob');
   const dataPoints = [];
 
   {
-    const collectionId = await createCollectionExpectSuccess();
-    const tokenId = await createItemExpectSuccess(alice, collectionId, 'NFT');
-    const aliceBalanceBefore = (await api.query.system.account(alice.address)).data.free.toBigInt();
-    await transferExpectSuccess(collectionId, tokenId, alice, bob, 1, 'NFT');
-    const aliceBalanceAfter = (await api.query.system.account(alice.address)).data.free.toBigInt();
+    const collection = await helper.nft.mintCollection(alice, {name: 'New', description: 'New collection', tokenPrefix: 'NEW'});
+    const token = await collection.mintToken(alice, {Substrate: alice.address});
+    const aliceBalanceBefore = await helper.balance.getSubstrate(alice.address);
+    await token.transfer(alice, {Substrate: bob.address});
+    const aliceBalanceAfter = await helper.balance.getSubstrate(alice.address);
 
-    console.log(`Original price: ${Number(aliceBalanceBefore - aliceBalanceAfter) / Number(UNIQUE)} UNQ`);
+    console.log(`Original price: ${Number(aliceBalanceBefore - aliceBalanceAfter) / Number(helper.balance.getOneTokenNominal())} UNQ`);
   }
 
+  const api = helper.getApi();
   const defaultCoeff = (api.consts.configuration.defaultWeightToFeeCoefficient as any).toBigInt();
   for (let i = -5; i < 5; i++) {
-    await executeTransaction(api, alice, api.tx.sudo.sudo(api.tx.configuration.setWeightToFeeCoefficientOverride(defaultCoeff + defaultCoeff / 1000n * BigInt(i))));
+    await helper.signTransaction(alice, api.tx.sudo.sudo(api.tx.configuration.setWeightToFeeCoefficientOverride(defaultCoeff + defaultCoeff / 1000n * BigInt(i))));
 
     const coefficient = (await api.query.configuration.weightToFeeCoefficientOverride() as any).toBigInt();
-    const collectionId = await createCollectionExpectSuccess();
-    const tokenId = await createItemExpectSuccess(alice, collectionId, 'NFT');
+    const collection = await helper.nft.mintCollection(alice, {name: 'New', description: 'New collection', tokenPrefix: 'NEW'});
+    const token = await collection.mintToken(alice, {Substrate: alice.address});
 
-    const aliceBalanceBefore = (await api.query.system.account(alice.address)).data.free.toBigInt();
-    await transferExpectSuccess(collectionId, tokenId, alice, bob, 1, 'NFT');
-    const aliceBalanceAfter = (await api.query.system.account(alice.address)).data.free.toBigInt();
+    const aliceBalanceBefore = await helper.balance.getSubstrate(alice.address);
+    await token.transfer(alice, {Substrate: bob.address});
+    const aliceBalanceAfter = await helper.balance.getSubstrate(alice.address);
 
     const transferPrice = aliceBalanceBefore - aliceBalanceAfter;
 
@@ -94,52 +92,53 @@
 
   // console.log(`Error: ${error(dataPoints, x => a*x+b)}`);
 
-  const perfectValue = a * UNIQUE / 10n + b;
-  await executeTransaction(api, alice, api.tx.sudo.sudo(api.tx.configuration.setWeightToFeeCoefficientOverride(perfectValue.toString())));
+  const perfectValue = a * helper.balance.getOneTokenNominal() / 10n + b;
+  await helper.signTransaction(alice, api.tx.sudo.sudo(api.tx.configuration.setWeightToFeeCoefficientOverride(perfectValue.toString())));
 
   {
-    const collectionId = await createCollectionExpectSuccess();
-    const tokenId = await createItemExpectSuccess(alice, collectionId, 'NFT');
-    const aliceBalanceBefore = (await api.query.system.account(alice.address)).data.free.toBigInt();
-    await transferExpectSuccess(collectionId, tokenId, alice, bob, 1, 'NFT');
-    const aliceBalanceAfter = (await api.query.system.account(alice.address)).data.free.toBigInt();
+    const collection = await helper.nft.mintCollection(alice, {name: 'New', description: 'New collection', tokenPrefix: 'NEW'});
+    const token = await collection.mintToken(alice, {Substrate: alice.address});
+    const aliceBalanceBefore = await helper.balance.getSubstrate(alice.address);
+    await token.transfer(alice, {Substrate: bob.address});
+    const aliceBalanceAfter = await helper.balance.getSubstrate(alice.address);
 
-    console.log(`Calibrated price: ${Number(aliceBalanceBefore - aliceBalanceAfter) / Number(UNIQUE)} UNQ`);
+    console.log(`Calibrated price: ${Number(aliceBalanceBefore - aliceBalanceAfter) / Number(helper.balance.getOneTokenNominal())} UNQ`);
   }
 }
 
-async function calibrateMinGasPrice(api: ApiPromise, web3: Web3, privateKey: (account: string) => IKeyringPair) {
+async function calibrateMinGasPrice(helper: EthUniqueHelper, privateKey: (account: string) => IKeyringPair) {
   const alice = privateKey('//Alice');
-  const caller = await createEthAccountWithBalance(api, web3, privateKey);
-  const receiver = createEthAccount(web3);
+  const caller = await helper.eth.createAccountWithBalance(alice);
+  const receiver = helper.eth.createAccount();
   const dataPoints = [];
 
   {
-    const collectionId = await createCollectionExpectSuccess();
-    const tokenId = await createItemExpectSuccess(alice, collectionId, 'NFT', {Ethereum: caller});
+    const collection = await helper.nft.mintCollection(alice, {name: 'New', description: 'New collection', tokenPrefix: 'NEW'});
+    const token = await collection.mintToken(alice, {Ethereum: caller});
 
-    const address = collectionIdToAddress(collectionId);
-    const contract = new web3.eth.Contract(nonFungibleAbi as any, address, {from: caller, ...GAS_ARGS});
+    const address = helper.ethAddress.fromCollectionId(collection.collectionId);
+    const contract = helper.ethNativeContract.collection(address, 'nft', caller);
 
-    const cost = await recordEthFee(api, caller, () => contract.methods.transfer(receiver, tokenId).send(caller));
+    const cost = await helper.eth.calculateFee({Ethereum: caller}, () => contract.methods.transfer(receiver, token.tokenId).send({from: caller, gas: helper.eth.DEFAULT_GAS}));
 
-    console.log(`Original price: ${Number(cost) / Number(UNIQUE)} UNQ`);
+    console.log(`Original price: ${Number(cost) / Number(helper.balance.getOneTokenNominal())} UNQ`);
   }
 
+  const api = helper.getApi();
   const defaultCoeff = (api.consts.configuration.defaultMinGasPrice as any).toBigInt();
   for (let i = -8; i < 8; i++) {
     const gasPrice = defaultCoeff + defaultCoeff / 100000n * BigInt(i);
     const gasPriceStr = '0x' + gasPrice.toString(16);
-    await executeTransaction(api, alice, api.tx.sudo.sudo(api.tx.configuration.setMinGasPriceOverride(gasPrice)));
+    await helper.signTransaction(alice, api.tx.sudo.sudo(api.tx.configuration.setMinGasPriceOverride(gasPrice)));
 
     const coefficient = (await api.query.configuration.minGasPriceOverride() as any).toBigInt();
-    const collectionId = await createCollectionExpectSuccess();
-    const tokenId = await createItemExpectSuccess(alice, collectionId, 'NFT', {Ethereum: caller});
+    const collection = await helper.nft.mintCollection(alice, {name: 'New', description: 'New collection', tokenPrefix: 'NEW'});
+    const token = await collection.mintToken(alice, {Ethereum: caller});
 
-    const address = collectionIdToAddress(collectionId);
-    const contract = new web3.eth.Contract(nonFungibleAbi as any, address, {from: caller, gasPrice: gasPriceStr, ...GAS_ARGS});
+    const address = helper.ethAddress.fromCollectionId(collection.collectionId);
+    const contract = helper.ethNativeContract.collection(address, 'nft', caller);
 
-    const transferPrice = await recordEthFee(api, caller, () => contract.methods.transfer(receiver, tokenId).send(caller));
+    const transferPrice = await helper.eth.calculateFee({Ethereum: caller}, () => contract.methods.transfer(receiver, token.tokenId).send({from: caller, gasPrice: gasPriceStr, gas: helper.eth.DEFAULT_GAS}));
 
     dataPoints.push({x: transferPrice, y: coefficient});
   }
@@ -149,34 +148,30 @@
   // console.log(`Error: ${error(dataPoints, x => a*x+b)}`);
 
   // * 0.15 = * 10000 / 66666
-  const perfectValue = a * UNIQUE * 1000000n / 6666666n + b;
-  await executeTransaction(api, alice, api.tx.sudo.sudo(api.tx.configuration.setMinGasPriceOverride(perfectValue.toString())));
+  const perfectValue = a * helper.balance.getOneTokenNominal() * 1000000n / 6666666n + b;
+  await helper.signTransaction(alice, api.tx.sudo.sudo(api.tx.configuration.setMinGasPriceOverride(perfectValue.toString())));
 
   {
-    const collectionId = await createCollectionExpectSuccess();
-    const tokenId = await createItemExpectSuccess(alice, collectionId, 'NFT', {Ethereum: caller});
+    const collection = await helper.nft.mintCollection(alice, {name: 'New', description: 'New collection', tokenPrefix: 'NEW'});
+    const token = await collection.mintToken(alice, {Ethereum: caller});
 
-    const address = collectionIdToAddress(collectionId);
-    const contract = new web3.eth.Contract(nonFungibleAbi as any, address, {from: caller, ...GAS_ARGS});
+    const address = helper.ethAddress.fromCollectionId(collection.collectionId);
+    const contract = helper.ethNativeContract.collection(address, 'nft', caller);
 
-    const cost = await recordEthFee(api, caller, () => contract.methods.transfer(receiver, tokenId).send(caller));
+    const cost = await helper.eth.calculateFee({Ethereum: caller}, () => contract.methods.transfer(receiver, token.tokenId).send({from: caller, gas: helper.eth.DEFAULT_GAS}));
 
-    console.log(`Calibrated price: ${Number(cost) / Number(UNIQUE)} UNQ`);
+    console.log(`Calibrated price: ${Number(cost) / Number(helper.balance.getOneTokenNominal())} UNQ`);
   }
 }
 
 (async () => {
-  await usingApi(async (api, privateKey) => {
+  await usingEthPlaygrounds(async (helper: EthUniqueHelper, privateKey) => {
     // Second run slightly reduces error sometimes, as price line is not actually straight, this is a curve
 
-    await calibrateWeightToFee(api, privateKey);
-    await calibrateWeightToFee(api, privateKey);
+    await calibrateWeightToFee(helper, privateKey);
+    await calibrateWeightToFee(helper, privateKey);
 
-    await usingWeb3(async web3 => {
-      await calibrateMinGasPrice(api, web3, privateKey);
-      await calibrateMinGasPrice(api, web3, privateKey);
-    });
-
-    await api.disconnect();
+    await calibrateMinGasPrice(helper, privateKey);
+    await calibrateMinGasPrice(helper, privateKey);
   });
 })();
deletedtests/src/collision-tests/admVsOwnerChanges.test.tsdiffbeforeafterboth
--- a/tests/src/collision-tests/admVsOwnerChanges.test.ts
+++ /dev/null
@@ -1,73 +0,0 @@
-// Copyright 2019-2022 Unique Network (Gibraltar) Ltd.
-// This file is part of Unique Network.
-
-// Unique Network is free software: you can redistribute it and/or modify
-// it under the terms of the GNU General Public License as published by
-// the Free Software Foundation, either version 3 of the License, or
-// (at your option) any later version.
-
-// Unique Network is distributed in the hope that it will be useful,
-// but WITHOUT ANY WARRANTY; without even the implied warranty of
-// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
-// GNU General Public License for more details.
-
-// You should have received a copy of the GNU General Public License
-// along with Unique Network. If not, see <http://www.gnu.org/licenses/>.
-
-/* broken by design
-// substrate transactions are sequential, not parallel
-// the order of execution is indeterminate
-
-import { IKeyringPair } from '@polkadot/types/types';
-import chai from 'chai';
-import chaiAsPromised from 'chai-as-promised';
-import privateKey from '../substrate/privateKey';
-import usingApi, { submitTransactionAsync } from '../substrate/substrate-api';
-import {
-  createCollectionExpectSuccess,
-  createItemExpectSuccess,
-  normalizeAccountId,
-  waitNewBlocks,
-} from '../util/helpers';
-
-chai.use(chaiAsPromised);
-const expect = chai.expect;
-let Alice: IKeyringPair;
-let Bob: IKeyringPair;
-let Ferdie: IKeyringPair;
-
-before(async () => {
-  await usingApi(async () => {
-    Alice = privateKey('//Alice');
-    Bob = privateKey('//Bob');
-    Ferdie = privateKey('//Ferdie');
-  });
-});
-
-describe('Admin vs Owner changes token: ', () => {
-  // tslint:disable-next-line: max-line-length
-  it('The collection admin changes the owner of the token and in the same block the current owner transfers the token to another address ', async () => {
-
-    await usingApi(async (api) => {
-      const collectionId = await createCollectionExpectSuccess();
-      const changeAdminTxBob = api.tx.unique.addCollectionAdmin(collectionId, normalizeAccountId(Bob.address));
-      await submitTransactionAsync(Alice, changeAdminTxBob);
-      const changeAdminTxFerdie = api.tx.unique.addCollectionAdmin(collectionId, normalizeAccountId(Ferdie.address));
-      await submitTransactionAsync(Bob, changeAdminTxFerdie);
-      const itemId = await createItemExpectSuccess(Ferdie, collectionId, 'NFT');
-
-      const changeOwner = api.tx.unique.transferFrom(normalizeAccountId(Ferdie.address), normalizeAccountId(Bob.address), collectionId, itemId, 1);
-      const approve = api.tx.unique.approve(normalizeAccountId(Bob.address), collectionId, itemId, 1);
-      const sendItem = api.tx.unique.transfer(normalizeAccountId(Alice.address), collectionId, itemId, 1);
-      await Promise.all([
-        changeOwner.signAndSend(Alice),
-        approve.signAndSend(Bob),
-        sendItem.signAndSend(Ferdie),
-      ]);
-      const itemBefore: any = await api.query.unique.nftItemList(collectionId, itemId);
-      expect(itemBefore.owner).not.to.be.eq(Bob.address);
-      await waitNewBlocks(2);
-    });
-  });
-});
-*/
\ No newline at end of file
deletedtests/src/collision-tests/admVsOwnerData.test.tsdiffbeforeafterboth
--- a/tests/src/collision-tests/admVsOwnerData.test.ts
+++ /dev/null
@@ -1,69 +0,0 @@
-// Copyright 2019-2022 Unique Network (Gibraltar) Ltd.
-// This file is part of Unique Network.
-
-// Unique Network is free software: you can redistribute it and/or modify
-// it under the terms of the GNU General Public License as published by
-// the Free Software Foundation, either version 3 of the License, or
-// (at your option) any later version.
-
-// Unique Network is distributed in the hope that it will be useful,
-// but WITHOUT ANY WARRANTY; without even the implied warranty of
-// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
-// GNU General Public License for more details.
-
-// You should have received a copy of the GNU General Public License
-// along with Unique Network. If not, see <http://www.gnu.org/licenses/>.
-
-/* broken by design
-// substrate transactions are sequential, not parallel
-// the order of execution is indeterminate
-
-import { IKeyringPair } from '@polkadot/types/types';
-import chai from 'chai';
-import chaiAsPromised from 'chai-as-promised';
-import privateKey from '../substrate/privateKey';
-import usingApi, { submitTransactionAsync } from '../substrate/substrate-api';
-import {
-  createCollectionExpectSuccess,
-  createItemExpectSuccess,
-  normalizeAccountId,
-  waitNewBlocks,
-} from '../util/helpers';
-
-chai.use(chaiAsPromised);
-const expect = chai.expect;
-let Alice: IKeyringPair;
-let Bob: IKeyringPair;
-
-before(async () => {
-  await usingApi(async () => {
-    Alice = privateKey('//Alice');
-    Bob = privateKey('//Bob');
-  });
-});
-
-describe('Admin vs Owner changes the data in the token: ', () => {
-  it('The collection admin changes the data in the token and in the same block the token owner also changes the data in it ', async () => {
-    await usingApi(async (api) => {
-      const AliceData = 1;
-      const BobData = 2;
-      const collectionId = await createCollectionExpectSuccess();
-      const changeAdminTx = api.tx.unique.addCollectionAdmin(collectionId, normalizeAccountId(Bob.address));
-      await submitTransactionAsync(Alice, changeAdminTx);
-      const itemId = await createItemExpectSuccess(Bob, collectionId, 'NFT');
-      //
-      // tslint:disable-next-line: max-line-length
-      const AliceTx = api.tx.unique.setVariableMetaData(collectionId, itemId, AliceData.toString());
-      // tslint:disable-next-line: max-line-length
-      const BobTx = api.tx.unique.setVariableMetaData(collectionId, itemId, BobData.toString());
-      await Promise.all([
-        AliceTx.signAndSend(Alice),
-        BobTx.signAndSend(Bob),
-      ]);
-      const item: any = await api.query.unique.nftItemList(collectionId, itemId);
-      expect(item.variableData).not.to.be.eq(null); // Pseudo-random selection of one of two values
-      await waitNewBlocks(2);
-    });
-  });
-});
-*/
\ No newline at end of file
deletedtests/src/collision-tests/admVsOwnerTake.test.tsdiffbeforeafterboth
--- a/tests/src/collision-tests/admVsOwnerTake.test.ts
+++ /dev/null
@@ -1,71 +0,0 @@
-// Copyright 2019-2022 Unique Network (Gibraltar) Ltd.
-// This file is part of Unique Network.
-
-// Unique Network is free software: you can redistribute it and/or modify
-// it under the terms of the GNU General Public License as published by
-// the Free Software Foundation, either version 3 of the License, or
-// (at your option) any later version.
-
-// Unique Network is distributed in the hope that it will be useful,
-// but WITHOUT ANY WARRANTY; without even the implied warranty of
-// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
-// GNU General Public License for more details.
-
-// You should have received a copy of the GNU General Public License
-// along with Unique Network. If not, see <http://www.gnu.org/licenses/>.
-
-/* broken by design
-// substrate transactions are sequential, not parallel
-// the order of execution is indeterminate
-
-import { IKeyringPair } from '@polkadot/types/types';
-import chai from 'chai';
-import chaiAsPromised from 'chai-as-promised';
-import privateKey from '../substrate/privateKey';
-import usingApi, { submitTransactionAsync } from '../substrate/substrate-api';
-import {
-  createCollectionExpectSuccess,
-  createItemExpectSuccess,
-  normalizeAccountId,
-  waitNewBlocks,
-} from '../util/helpers';
-
-chai.use(chaiAsPromised);
-const expect = chai.expect;
-let Alice: IKeyringPair;
-let Bob: IKeyringPair;
-let Ferdie: IKeyringPair;
-
-before(async () => {
-  await usingApi(async () => {
-    Alice = privateKey('//Alice');
-    Bob = privateKey('//Bob');
-    Ferdie = privateKey('//Ferdie');
-  });
-});
-
-describe('Admin vs Owner take token: ', () => {
-  // tslint:disable-next-line: max-line-length
-  it('The collection admin burns the token and in the same block the token owner performs a transaction on it ', async () => {
-    await usingApi(async (api) => {
-      const collectionId = await createCollectionExpectSuccess();
-      const changeAdminTx = api.tx.unique.addCollectionAdmin(collectionId, normalizeAccountId(Bob.address));
-      await submitTransactionAsync(Alice, changeAdminTx);
-      const itemId = await createItemExpectSuccess(Bob, collectionId, 'NFT');
-      //
-      const sendItem = api.tx.unique.transfer(normalizeAccountId(Ferdie.address), collectionId, itemId, 1);
-      const burnItem = api.tx.unique.burnItem(collectionId, itemId, 1);
-      await Promise.all([
-        sendItem.signAndSend(Bob),
-        burnItem.signAndSend(Alice),
-      ]);
-      await waitNewBlocks(2);
-      let itemBurn = false;
-      itemBurn = (await (api.query.unique.nftItemList(collectionId, itemId))).toJSON() as boolean;
-      // tslint:disable-next-line: no-unused-expression
-      expect(itemBurn).to.be.null;
-      await waitNewBlocks(2);
-    });
-  });
-});
-*/
\ No newline at end of file
deletedtests/src/collision-tests/adminDestroyCollection.test.tsdiffbeforeafterboth
--- a/tests/src/collision-tests/adminDestroyCollection.test.ts
+++ /dev/null
@@ -1,70 +0,0 @@
-// Copyright 2019-2022 Unique Network (Gibraltar) Ltd.
-// This file is part of Unique Network.
-
-// Unique Network is free software: you can redistribute it and/or modify
-// it under the terms of the GNU General Public License as published by
-// the Free Software Foundation, either version 3 of the License, or
-// (at your option) any later version.
-
-// Unique Network is distributed in the hope that it will be useful,
-// but WITHOUT ANY WARRANTY; without even the implied warranty of
-// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
-// GNU General Public License for more details.
-
-// You should have received a copy of the GNU General Public License
-// along with Unique Network. If not, see <http://www.gnu.org/licenses/>.
-
-/* broken by design
-// substrate transactions are sequential, not parallel
-// the order of execution is indeterminate
-
-import { IKeyringPair } from '@polkadot/types/types';
-import chai from 'chai';
-import chaiAsPromised from 'chai-as-promised';
-import privateKey from '../substrate/privateKey';
-import usingApi, { submitTransactionAsync } from '../substrate/substrate-api';
-import {
-  createCollectionExpectSuccess,
-  normalizeAccountId,
-  waitNewBlocks,
-} from '../util/helpers';
-
-chai.use(chaiAsPromised);
-const expect = chai.expect;
-let Alice: IKeyringPair;
-let Bob: IKeyringPair;
-let Ferdie: IKeyringPair;
-
-before(async () => {
-  await usingApi(async () => {
-    Alice = privateKey('//Alice');
-    Bob = privateKey('//Bob');
-    Ferdie = privateKey('//Ferdie');
-  });
-});
-
-describe('Deleting a collection while add address to allowlist: ', () => {
-  // tslint:disable-next-line: max-line-length
-  it('Adding an address to the collection allowlist in a block by the admin, and deleting the collection by the owner ', async () => {
-    await usingApi(async (api) => {
-      const collectionId = await createCollectionExpectSuccess();
-      const changeAdminTx = api.tx.unique.addCollectionAdmin(collectionId, normalizeAccountId(Bob.address));
-      await submitTransactionAsync(Alice, changeAdminTx);
-      await waitNewBlocks(1);
-      //
-      const addAllowlistAdm = api.tx.unique.addToAllowList(collectionId, normalizeAccountId(Ferdie.address));
-      const destroyCollection = api.tx.unique.destroyCollection(collectionId);
-      await Promise.all([
-        addAllowlistAdm.signAndSend(Bob),
-        destroyCollection.signAndSend(Alice),
-      ]);
-      await waitNewBlocks(1);
-      let allowList = false;
-      allowList = (await api.query.unique.allowList(collectionId, Ferdie.address)).toJSON() as boolean;
-      // tslint:disable-next-line: no-unused-expression
-      expect(allowList).to.be.false;
-      await waitNewBlocks(2);
-    });
-  });
-});
-*/
\ No newline at end of file
deletedtests/src/collision-tests/adminLimitsOff.test.tsdiffbeforeafterboth
--- a/tests/src/collision-tests/adminLimitsOff.test.ts
+++ /dev/null
@@ -1,86 +0,0 @@
-// Copyright 2019-2022 Unique Network (Gibraltar) Ltd.
-// This file is part of Unique Network.
-
-// Unique Network is free software: you can redistribute it and/or modify
-// it under the terms of the GNU General Public License as published by
-// the Free Software Foundation, either version 3 of the License, or
-// (at your option) any later version.
-
-// Unique Network is distributed in the hope that it will be useful,
-// but WITHOUT ANY WARRANTY; without even the implied warranty of
-// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
-// GNU General Public License for more details.
-
-// You should have received a copy of the GNU General Public License
-// along with Unique Network. If not, see <http://www.gnu.org/licenses/>.
-
-/* broken by design
-// substrate transactions are sequential, not parallel
-// the order of execution is indeterminate
-
-import { IKeyringPair } from '@polkadot/types/types';
-import chai from 'chai';
-import chaiAsPromised from 'chai-as-promised';
-import privateKey from '../substrate/privateKey';
-import usingApi, { submitTransactionAsync, submitTransactionExpectFailAsync } from '../substrate/substrate-api';
-import {
-  createCollectionExpectSuccess,
-  normalizeAccountId,
-  waitNewBlocks,
-} from '../util/helpers';
-
-chai.use(chaiAsPromised);
-const expect = chai.expect;
-let Alice: IKeyringPair;
-let Bob: IKeyringPair;
-let Ferdie: IKeyringPair;
-let Charlie: IKeyringPair;
-let Eve: IKeyringPair;
-let Dave: IKeyringPair;
-
-before(async () => {
-  await usingApi(async () => {
-    Alice = privateKey('//Alice');
-    Bob = privateKey('//Bob');
-    Ferdie = privateKey('//Ferdie');
-    Charlie = privateKey('//Charlie');
-    Eve = privateKey('//Eve');
-    Dave = privateKey('//Dave');
-  });
-});
-
-describe('Admin limit exceeded collection: ', () => {
-  // tslint:disable-next-line: max-line-length
-  it('In one block, the owner and admin add new admins to the collection more than the limit ', async () => {
-    await usingApi(async (api) => {
-      const collectionId = await createCollectionExpectSuccess();
-
-      const chainAdminLimit = (api.consts.unique.collectionAdminsLimit as any).toNumber();
-      expect(chainAdminLimit).to.be.equal(5);
-
-      const changeAdminTx1 = api.tx.unique.addCollectionAdmin(collectionId, normalizeAccountId(Eve.address));
-      await submitTransactionAsync(Alice, changeAdminTx1);
-      const changeAdminTx2 = api.tx.unique.addCollectionAdmin(collectionId, normalizeAccountId(Dave.address));
-      await submitTransactionAsync(Alice, changeAdminTx2);
-      const changeAdminTx3 = api.tx.unique.addCollectionAdmin(collectionId, normalizeAccountId(Bob.address));
-      await submitTransactionAsync(Alice, changeAdminTx3);
-
-      const addAdmOne = api.tx.unique.addCollectionAdmin(collectionId, normalizeAccountId(Ferdie.address));
-      const addAdmTwo = api.tx.unique.addCollectionAdmin(collectionId, normalizeAccountId(Charlie.address));
-      await Promise.all([
-        addAdmOne.signAndSend(Bob),
-        addAdmTwo.signAndSend(Alice),
-      ]);
-      await waitNewBlocks(2);
-      const changeAdminTx4 = api.tx.unique.addCollectionAdmin(collectionId, normalizeAccountId(Alice.address));
-      await expect(submitTransactionExpectFailAsync(Alice, changeAdminTx4)).to.be.rejected;
-
-      const adminListAfterAddAdmin: any = (await api.query.unique.adminList(collectionId));
-      expect(adminListAfterAddAdmin).to.be.contains(normalizeAccountId(Eve.address));
-      expect(adminListAfterAddAdmin).to.be.contains(normalizeAccountId(Ferdie.address));
-      expect(adminListAfterAddAdmin).not.to.be.contains(normalizeAccountId(Alice.address));
-      await waitNewBlocks(2);
-    });
-  });
-});
-*/
\ No newline at end of file
deletedtests/src/collision-tests/adminRightsOff.test.tsdiffbeforeafterboth
--- a/tests/src/collision-tests/adminRightsOff.test.ts
+++ /dev/null
@@ -1,69 +0,0 @@
-// Copyright 2019-2022 Unique Network (Gibraltar) Ltd.
-// This file is part of Unique Network.
-
-// Unique Network is free software: you can redistribute it and/or modify
-// it under the terms of the GNU General Public License as published by
-// the Free Software Foundation, either version 3 of the License, or
-// (at your option) any later version.
-
-// Unique Network is distributed in the hope that it will be useful,
-// but WITHOUT ANY WARRANTY; without even the implied warranty of
-// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
-// GNU General Public License for more details.
-
-// You should have received a copy of the GNU General Public License
-// along with Unique Network. If not, see <http://www.gnu.org/licenses/>.
-
-/* broken by design
-// substrate transactions are sequential, not parallel
-// the order of execution is indeterminate
-
-import { IKeyringPair } from '@polkadot/types/types';
-import BN from 'bn.js';
-import chai from 'chai';
-import chaiAsPromised from 'chai-as-promised';
-import privateKey from '../substrate/privateKey';
-import usingApi, { submitTransactionAsync } from '../substrate/substrate-api';
-import {
-  createCollectionExpectSuccess,
-  normalizeAccountId,
-  waitNewBlocks,
-} from '../util/helpers';
-
-chai.use(chaiAsPromised);
-const expect = chai.expect;
-let Alice: IKeyringPair;
-let Bob: IKeyringPair;
-
-before(async () => {
-  await usingApi(async () => {
-    Alice = privateKey('//Alice');
-    Bob = privateKey('//Bob');
-  });
-});
-
-describe('Deprivation of admin rights: ', () => {
-  // tslint:disable-next-line: max-line-length
-  it('In the block, the collection admin adds a token or changes data, and the collection owner deprives the admin of rights ', async () => {
-    await usingApi(async (api) => {
-      const collectionId = await createCollectionExpectSuccess();
-      const changeAdminTx = api.tx.unique.addCollectionAdmin(collectionId, normalizeAccountId(Bob.address));
-      await submitTransactionAsync(Alice, changeAdminTx);
-      await waitNewBlocks(1);
-      const args = [{ nft: ['0x31', '0x31'] }, { nft: ['0x32', '0x32'] }, { nft: ['0x33', '0x33'] }];
-      const addItemAdm = api.tx.unique.createMultipleItems(collectionId, normalizeAccountId(Bob.address), args);
-      const removeAdm = api.tx.unique.removeCollectionAdmin(collectionId, normalizeAccountId(Bob.address));
-      await Promise.all([
-        addItemAdm.signAndSend(Bob),
-        removeAdm.signAndSend(Alice),
-      ]);
-      await waitNewBlocks(2);
-      const itemsListIndex = await api.query.unique.itemListIndex(collectionId) as unknown as BN;
-      expect(itemsListIndex.toNumber()).to.be.equal(0);
-      const adminList: any = (await api.query.unique.adminList(collectionId));
-      expect(adminList).not.to.be.contains(normalizeAccountId(Bob.address));
-      await waitNewBlocks(2);
-    });
-  });
-});
-*/
\ No newline at end of file
deletedtests/src/collision-tests/setSponsorNewOwner.test.tsdiffbeforeafterboth
--- a/tests/src/collision-tests/setSponsorNewOwner.test.ts
+++ /dev/null
@@ -1,67 +0,0 @@
-// Copyright 2019-2022 Unique Network (Gibraltar) Ltd.
-// This file is part of Unique Network.
-
-// Unique Network is free software: you can redistribute it and/or modify
-// it under the terms of the GNU General Public License as published by
-// the Free Software Foundation, either version 3 of the License, or
-// (at your option) any later version.
-
-// Unique Network is distributed in the hope that it will be useful,
-// but WITHOUT ANY WARRANTY; without even the implied warranty of
-// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
-// GNU General Public License for more details.
-
-// You should have received a copy of the GNU General Public License
-// along with Unique Network. If not, see <http://www.gnu.org/licenses/>.
-
-/* broken by design
-// substrate transactions are sequential, not parallel
-// the order of execution is indeterminate
-
-import { IKeyringPair } from '@polkadot/types/types';
-import chai from 'chai';
-import chaiAsPromised from 'chai-as-promised';
-import privateKey from '../substrate/privateKey';
-import usingApi from '../substrate/substrate-api';
-import {
-  createCollectionExpectSuccess,
-  setCollectionSponsorExpectSuccess,
-  waitNewBlocks,
-} from '../util/helpers';
-
-chai.use(chaiAsPromised);
-const expect = chai.expect;
-let Alice: IKeyringPair;
-let Bob: IKeyringPair;
-let Ferdie: IKeyringPair;
-
-before(async () => {
-  await usingApi(async () => {
-    Alice = privateKey('//Alice');
-    Bob = privateKey('//Bob');
-    Ferdie = privateKey('//Ferdie');
-  });
-});
-
-describe('Sponsored with new owner ', () => {
-  // tslint:disable-next-line: max-line-length
-  it('Confirmation of sponsorship of a collection in a block with a change in the owner of the collection: ', async () => {
-    await usingApi(async (api) => {
-      const collectionId = await createCollectionExpectSuccess();
-      await setCollectionSponsorExpectSuccess(collectionId, Bob.address);
-      await waitNewBlocks(2);
-      const confirmSponsorship = api.tx.unique.confirmSponsorship(collectionId);
-      const changeCollectionOwner = api.tx.unique.changeCollectionOwner(collectionId, Ferdie.address);
-      await Promise.all([
-        confirmSponsorship.signAndSend(Bob),
-        changeCollectionOwner.signAndSend(Alice),
-      ]);
-      await waitNewBlocks(2);
-      const collection: any = (await api.query.unique.collectionById(collectionId)).toJSON();
-      expect(collection.sponsorship.confirmed).to.be.eq(Bob.address);
-      expect(collection.owner).to.be.eq(Ferdie.address);
-      await waitNewBlocks(2);
-    });
-  });
-});
-*/
\ No newline at end of file
deletedtests/src/collision-tests/sponsorPayments.test.tsdiffbeforeafterboth
--- a/tests/src/collision-tests/sponsorPayments.test.ts
+++ /dev/null
@@ -1,76 +0,0 @@
-// Copyright 2019-2022 Unique Network (Gibraltar) Ltd.
-// This file is part of Unique Network.
-
-// Unique Network is free software: you can redistribute it and/or modify
-// it under the terms of the GNU General Public License as published by
-// the Free Software Foundation, either version 3 of the License, or
-// (at your option) any later version.
-
-// Unique Network is distributed in the hope that it will be useful,
-// but WITHOUT ANY WARRANTY; without even the implied warranty of
-// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
-// GNU General Public License for more details.
-
-// You should have received a copy of the GNU General Public License
-// along with Unique Network. If not, see <http://www.gnu.org/licenses/>.
-
-/* broken by design
-// substrate transactions are sequential, not parallel
-// the order of execution is indeterminate
-
-import { IKeyringPair } from '@polkadot/types/types';
-import chai from 'chai';
-import chaiAsPromised from 'chai-as-promised';
-import { alicesPublicKey, bobsPublicKey } from '../accounts';
-import getBalance from '../substrate/get-balance';
-import privateKey from '../substrate/privateKey';
-import usingApi, { submitTransactionAsync } from '../substrate/substrate-api';
-import {
-  confirmSponsorshipExpectSuccess,
-  createCollectionExpectSuccess,
-  createItemExpectSuccess,
-  setCollectionSponsorExpectSuccess,
-  normalizeAccountId,
-  waitNewBlocks,
-} from '../util/helpers';
-
-chai.use(chaiAsPromised);
-const expect = chai.expect;
-let Alice: IKeyringPair;
-let Bob: IKeyringPair;
-
-before(async () => {
-  await usingApi(async () => {
-    Alice = privateKey('//Alice');
-    Bob = privateKey('//Bob');
-  });
-});
-
-describe('Payment of commission if one block: ', () => {
-  // tslint:disable-next-line: max-line-length
-  it('Payment of commission if one block contains transactions for payment from the sponsor\'s balance and his (sponsor\'s) exclusion from the collection ', async () => {
-    await usingApi(async (api) => {
-      const collectionId = await createCollectionExpectSuccess();
-      const changeAdminTxBob = api.tx.unique.addCollectionAdmin(collectionId, normalizeAccountId(Bob.address));
-      await submitTransactionAsync(Alice, changeAdminTxBob);
-      const itemId = await createItemExpectSuccess(Bob, collectionId, 'NFT');
-      await setCollectionSponsorExpectSuccess(collectionId, Bob.address);
-      await confirmSponsorshipExpectSuccess(collectionId, '//Bob');
-
-      const [alicesBalanceBefore, bobsBalanceBefore] = await getBalance(api, [alicesPublicKey, bobsPublicKey]);
-      const sendItem = api.tx.unique.transfer(normalizeAccountId(Alice.address), collectionId, itemId, 1);
-      const revokeSponsor = api.tx.unique.removeCollectionSponsor(collectionId);
-      await Promise.all([
-        sendItem.signAndSend(Bob),
-        revokeSponsor.signAndSend(Alice),
-      ]);
-      const [alicesBalanceAfter, bobsBalanceAfter] = await getBalance(api, [alicesPublicKey, bobsPublicKey]);
-      // tslint:disable-next-line:no-unused-expression
-      expect(alicesBalanceAfter === alicesBalanceBefore).to.be.true;
-      // tslint:disable-next-line:no-unused-expression
-      expect(bobsBalanceAfter === bobsBalanceBefore).to.be.true;
-      await waitNewBlocks(2);
-    });
-  });
-});
-*/
\ No newline at end of file
deletedtests/src/collision-tests/tokenLimitsOff.test.tsdiffbeforeafterboth
--- a/tests/src/collision-tests/tokenLimitsOff.test.ts
+++ /dev/null
@@ -1,100 +0,0 @@
-// Copyright 2019-2022 Unique Network (Gibraltar) Ltd.
-// This file is part of Unique Network.
-
-// Unique Network is free software: you can redistribute it and/or modify
-// it under the terms of the GNU General Public License as published by
-// the Free Software Foundation, either version 3 of the License, or
-// (at your option) any later version.
-
-// Unique Network is distributed in the hope that it will be useful,
-// but WITHOUT ANY WARRANTY; without even the implied warranty of
-// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
-// GNU General Public License for more details.
-
-// You should have received a copy of the GNU General Public License
-// along with Unique Network. If not, see <http://www.gnu.org/licenses/>.
-
-/* broken by design
-// substrate transactions are sequential, not parallel
-// the order of execution is indeterminate
-
-import { IKeyringPair } from '@polkadot/types/types';
-import BN from 'bn.js';
-import chai from 'chai';
-import chaiAsPromised from 'chai-as-promised';
-import privateKey from '../substrate/privateKey';
-import usingApi, { submitTransactionAsync } from '../substrate/substrate-api';
-import {
-  addToAllowListExpectSuccess,
-  createCollectionExpectSuccess,
-  getCreateItemResult,
-  setMintPermissionExpectSuccess,
-  normalizeAccountId,
-  waitNewBlocks,
-} from '../util/helpers';
-
-chai.use(chaiAsPromised);
-const expect = chai.expect;
-let Alice: IKeyringPair;
-let Bob: IKeyringPair;
-let Ferdie: IKeyringPair;
-
-const accountTokenOwnershipLimit = 4;
-const sponsoredMintSize = 4294967295;
-const tokenLimit = 4;
-const sponsorTimeout = 14400;
-const ownerCanTransfer = false;
-const ownerCanDestroy = false;
-
-before(async () => {
-  await usingApi(async () => {
-    Alice = privateKey('//Alice');
-    Bob = privateKey('//Bob');
-    Ferdie = privateKey('//Ferdie');
-  });
-});
-
-describe('Token limit exceeded collection: ', () => {
-  // tslint:disable-next-line: max-line-length
-  it('The number of tokens created in the collection from different addresses exceeds the allowed collection limit ', async () => {
-    await usingApi(async (api) => {
-      const collectionId = await createCollectionExpectSuccess();
-      await setMintPermissionExpectSuccess(Alice, collectionId, true);
-      await addToAllowListExpectSuccess(Alice, collectionId, Ferdie.address);
-      await addToAllowListExpectSuccess(Alice, collectionId, Bob.address);
-      const setCollectionLim = api.tx.unique.setCollectionLimits(
-        collectionId,
-        {
-          accountTokenOwnershipLimit,
-          sponsoredMintSize,
-          tokenLimit,
-          // tslint:disable-next-line: object-literal-sort-keys
-          sponsorTimeout,
-          ownerCanTransfer,
-          ownerCanDestroy,
-        },
-      );
-      const subTx = await submitTransactionAsync(Alice, setCollectionLim);
-      const subTxTesult = getCreateItemResult(subTx);
-      // tslint:disable-next-line:no-unused-expression
-      expect(subTxTesult.success).to.be.true;
-      await waitNewBlocks(2);
-
-      const args = [{ nft: ['0x31', '0x31'] }, { nft: ['0x32', '0x32'] }, { nft: ['0x33', '0x33'] }];
-      const mintItemOne = api.tx.unique
-        .createMultipleItems(collectionId, normalizeAccountId(Ferdie.address), args);
-      const mintItemTwo = api.tx.unique
-        .createMultipleItems(collectionId, normalizeAccountId(Bob.address), args);
-      await Promise.all([
-        mintItemOne.signAndSend(Ferdie),
-        mintItemTwo.signAndSend(Bob),
-      ]);
-      await waitNewBlocks(2);
-      const itemsListIndexAfter = await api.query.unique.itemListIndex(collectionId) as unknown as BN;
-      expect(itemsListIndexAfter.toNumber()).to.be.equal(3);
-      // TokenLimit = 4. The first transaction is successful. The second should fail.
-      await waitNewBlocks(2);
-    });
-  });
-});
-*/
deletedtests/src/collision-tests/turnsOffMinting.test.tsdiffbeforeafterboth
--- a/tests/src/collision-tests/turnsOffMinting.test.ts
+++ /dev/null
@@ -1,68 +0,0 @@
-// Copyright 2019-2022 Unique Network (Gibraltar) Ltd.
-// This file is part of Unique Network.
-
-// Unique Network is free software: you can redistribute it and/or modify
-// it under the terms of the GNU General Public License as published by
-// the Free Software Foundation, either version 3 of the License, or
-// (at your option) any later version.
-
-// Unique Network is distributed in the hope that it will be useful,
-// but WITHOUT ANY WARRANTY; without even the implied warranty of
-// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
-// GNU General Public License for more details.
-
-// You should have received a copy of the GNU General Public License
-// along with Unique Network. If not, see <http://www.gnu.org/licenses/>.
-
-/* broken by design
-// substrate transactions are sequential, not parallel
-// the order of execution is indeterminate
-
-import { IKeyringPair } from '@polkadot/types/types';
-import chai from 'chai';
-import chaiAsPromised from 'chai-as-promised';
-import privateKey from '../substrate/privateKey';
-import usingApi from '../substrate/substrate-api';
-import {
-  addToAllowListExpectSuccess,
-  createCollectionExpectSuccess,
-  setMintPermissionExpectSuccess,
-  normalizeAccountId,
-  waitNewBlocks,
-} from '../util/helpers';
-
-chai.use(chaiAsPromised);
-const expect = chai.expect;
-let Alice: IKeyringPair;
-let Ferdie: IKeyringPair;
-
-before(async () => {
-  await usingApi(async () => {
-    Alice = privateKey('//Alice');
-    Ferdie = privateKey('//Ferdie');
-  });
-});
-
-describe('Turns off minting mode: ', () => {
-  // tslint:disable-next-line: max-line-length
-  it('The collection owner turns off minting mode and there are minting transactions in the same block ', async () => {
-    await usingApi(async (api) => {
-      const collectionId = await createCollectionExpectSuccess();
-      await setMintPermissionExpectSuccess(Alice, collectionId, true);
-      await addToAllowListExpectSuccess(Alice, collectionId, Ferdie.address);
-
-      const mintItem = api.tx.unique.createItem(collectionId, normalizeAccountId(Ferdie.address), 'NFT');
-      const offMinting = api.tx.unique.setMintPermission(collectionId, false);
-      await Promise.all([
-        mintItem.signAndSend(Ferdie),
-        offMinting.signAndSend(Alice),
-      ]);
-      let itemList = false;
-      itemList = (await (api.query.unique.nftItemList(collectionId, mintItem))).toJSON() as boolean;
-      // tslint:disable-next-line: no-unused-expression
-      expect(itemList).to.be.null;
-      await waitNewBlocks(2);
-    });
-  });
-});
-*/
\ No newline at end of file
deletedtests/src/contracts.test.tsdiffbeforeafterboth
--- a/tests/src/contracts.test.ts
+++ /dev/null
@@ -1,240 +0,0 @@
-// Copyright 2019-2022 Unique Network (Gibraltar) Ltd.
-// This file is part of Unique Network.
-
-// Unique Network is free software: you can redistribute it and/or modify
-// it under the terms of the GNU General Public License as published by
-// the Free Software Foundation, either version 3 of the License, or
-// (at your option) any later version.
-
-// Unique Network is distributed in the hope that it will be useful,
-// but WITHOUT ANY WARRANTY; without even the implied warranty of
-// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
-// GNU General Public License for more details.
-
-// You should have received a copy of the GNU General Public License
-// along with Unique Network. If not, see <http://www.gnu.org/licenses/>.
-
-import chai from 'chai';
-import chaiAsPromised from 'chai-as-promised';
-import usingApi, {submitTransactionAsync} from './substrate/substrate-api';
-import fs from 'fs';
-import {Abi, ContractPromise as Contract} from '@polkadot/api-contract';
-import {
-  deployFlipper,
-  getFlipValue,
-  deployTransferContract,
-} from './util/contracthelpers';
-
-import {
-  addToAllowListExpectSuccess,
-  approveExpectSuccess,
-  createCollectionExpectSuccess,
-  createItemExpectSuccess,
-  enablePublicMintingExpectSuccess,
-  enableAllowListExpectSuccess,
-  getGenericResult,
-  normalizeAccountId,
-  isAllowlisted,
-  transferFromExpectSuccess,
-  getTokenOwner,
-} from './util/helpers';
-
-
-chai.use(chaiAsPromised);
-const expect = chai.expect;
-
-const value = 0;
-const gasLimit = 9000n * 1000000n;
-const marketContractAddress = '5CYN9j3YvRkqxewoxeSvRbhAym4465C57uMmX5j4yz99L5H6';
-
-// todo:playgrounds skipped ~ postponed
-describe.skip('Contracts', () => {
-  it('Can deploy smart contract Flipper, instantiate it and call it\'s get and flip messages.', async () => {
-    await usingApi(async (api, privateKeyWrapper) => {
-      const [contract, deployer] = await deployFlipper(api, privateKeyWrapper);
-      const initialGetResponse = await getFlipValue(contract, deployer);
-
-      const bob = privateKeyWrapper('//Bob');
-      const flip = contract.tx.flip({value, gasLimit});
-      await submitTransactionAsync(bob, flip);
-
-      const afterFlipGetResponse = await getFlipValue(contract, deployer);
-      expect(afterFlipGetResponse).not.to.be.eq(initialGetResponse, 'Flipping should change value.');
-    });
-  });
-
-  it('Can initialize contract instance', async () => {
-    await usingApi(async (api) => {
-      const metadata = JSON.parse(fs.readFileSync('./src/flipper/metadata.json').toString('utf-8'));
-      const abi = new Abi(metadata);
-      const newContractInstance = new Contract(api, abi, marketContractAddress);
-      expect(newContractInstance).to.have.property('address');
-      expect(newContractInstance.address.toString()).to.equal(marketContractAddress);
-    });
-  });
-});
-
-describe.skip('Chain extensions', () => {
-  it('Transfer CE', async () => {
-    await usingApi(async (api, privateKeyWrapper) => {
-      const alice = privateKeyWrapper('//Alice');
-      const bob = privateKeyWrapper('//Bob');
-
-      // Prep work
-      const collectionId = await createCollectionExpectSuccess();
-      const tokenId = await createItemExpectSuccess(alice, collectionId, 'NFT');
-      const [contract] = await deployTransferContract(api, privateKeyWrapper);
-      const changeAdminTx = api.tx.unique.addCollectionAdmin(collectionId, contract.address);
-      await submitTransactionAsync(alice, changeAdminTx);
-
-      expect(await getTokenOwner(api, collectionId, tokenId)).to.be.deep.equal(normalizeAccountId(alice.address));
-
-      // Transfer
-      const transferTx = contract.tx.transfer({value, gasLimit}, bob.address, collectionId, tokenId, 1);
-      const events = await submitTransactionAsync(alice, transferTx);
-      const result = getGenericResult(events);
-      expect(result.success).to.be.true;
-
-      expect(await getTokenOwner(api, collectionId, tokenId)).to.be.deep.equal(normalizeAccountId(bob.address));
-    });
-  });
-
-  it('Mint CE', async () => {
-    await usingApi(async (api, privateKeyWrapper) => {
-      const alice = privateKeyWrapper('//Alice');
-      const bob = privateKeyWrapper('//Bob');
-
-      const collectionId = await createCollectionExpectSuccess();
-      const [contract] = await deployTransferContract(api, privateKeyWrapper);
-      await enablePublicMintingExpectSuccess(alice, collectionId);
-      await enableAllowListExpectSuccess(alice, collectionId);
-      await addToAllowListExpectSuccess(alice, collectionId, contract.address);
-      await addToAllowListExpectSuccess(alice, collectionId, bob.address);
-
-      const transferTx = contract.tx.createItem({value, gasLimit}, bob.address, collectionId, {Nft: {const_data: '0x010203'}});
-      const events = await submitTransactionAsync(alice, transferTx);
-      const result = getGenericResult(events);
-      expect(result.success).to.be.true;
-
-      const tokensAfter = (await api.query.unique.nftItemList.entries(collectionId)).map((kv: any) => kv[1].toJSON());
-      expect(tokensAfter).to.be.deep.equal([
-        {
-          owner: bob.address,
-          constData: '0x010203',
-        },
-      ]);
-    });
-  });
-
-  it('Bulk mint CE', async () => {
-    await usingApi(async (api, privateKeyWrapper) => {
-      const alice = privateKeyWrapper('//Alice');
-      const bob = privateKeyWrapper('//Bob');
-
-      const collectionId = await createCollectionExpectSuccess();
-      const [contract] = await deployTransferContract(api, privateKeyWrapper);
-      await enablePublicMintingExpectSuccess(alice, collectionId);
-      await enableAllowListExpectSuccess(alice, collectionId);
-      await addToAllowListExpectSuccess(alice, collectionId, contract.address);
-      await addToAllowListExpectSuccess(alice, collectionId, bob.address);
-
-      const transferTx = contract.tx.createMultipleItems({value, gasLimit}, bob.address, collectionId, [
-        {NFT: {/*const_data: '0x010203'*/}},
-        {NFT: {/*const_data: '0x010204'*/}},
-        {NFT: {/*const_data: '0x010205'*/}},
-      ]);
-      const events = await submitTransactionAsync(alice, transferTx);
-      const result = getGenericResult(events);
-      expect(result.success).to.be.true;
-
-      const tokensAfter: any = (await api.query.unique.nftItemList.entries(collectionId) as any)
-        .map((kv: any) => kv[1].toJSON())
-        .sort((a: any, b: any) => a.constData.localeCompare(b.constData));
-      expect(tokensAfter).to.be.deep.equal([
-        {
-          Owner: bob.address,
-          //ConstData: '0x010203',
-        },
-        {
-          Owner: bob.address,
-          //ConstData: '0x010204',
-        },
-        {
-          Owner: bob.address,
-          //ConstData: '0x010205',
-        },
-      ]);
-    });
-  });
-
-  it('Approve CE', async () => {
-    await usingApi(async (api, privateKeyWrapper) => {
-      const alice = privateKeyWrapper('//Alice');
-      const bob = privateKeyWrapper('//Bob');
-      const charlie = privateKeyWrapper('//Charlie');
-
-      const collectionId = await createCollectionExpectSuccess();
-      const [contract] = await deployTransferContract(api, privateKeyWrapper);
-      const tokenId = await createItemExpectSuccess(alice, collectionId, 'NFT', contract.address.toString());
-
-      const transferTx = contract.tx.approve({value, gasLimit}, bob.address, collectionId, tokenId, 1);
-      const events = await submitTransactionAsync(alice, transferTx);
-      const result = getGenericResult(events);
-      expect(result.success).to.be.true;
-
-      await transferFromExpectSuccess(collectionId, tokenId, bob, normalizeAccountId(contract.address.toString()), charlie, 1, 'NFT');
-    });
-  });
-
-  it('TransferFrom CE', async () => {
-    await usingApi(async (api, privateKeyWrapper) => {
-      const alice = privateKeyWrapper('//Alice');
-      const bob = privateKeyWrapper('//Bob');
-      const charlie = privateKeyWrapper('//Charlie');
-
-      const collectionId = await createCollectionExpectSuccess();
-      const [contract] = await deployTransferContract(api, privateKeyWrapper);
-      const tokenId = await createItemExpectSuccess(alice, collectionId, 'NFT', bob.address);
-      await approveExpectSuccess(collectionId, tokenId, bob, contract.address.toString(), 1);
-
-      const transferTx = contract.tx.transferFrom({value, gasLimit}, bob.address, charlie.address, collectionId, tokenId, 1);
-      const events = await submitTransactionAsync(alice, transferTx);
-      const result = getGenericResult(events);
-      expect(result.success).to.be.true;
-
-      const token: any = (await api.query.unique.nftItemList(collectionId, tokenId) as any).unwrap();
-      expect(token.owner.toString()).to.be.equal(charlie.address);
-    });
-  });
-
-  it('ToggleAllowList CE', async () => {
-    await usingApi(async (api, privateKeyWrapper) => {
-      const alice = privateKeyWrapper('//Alice');
-      const bob = privateKeyWrapper('//Bob');
-
-      const collectionId = await createCollectionExpectSuccess();
-      const [contract] = await deployTransferContract(api, privateKeyWrapper);
-      const changeAdminTx = api.tx.unique.addCollectionAdmin(collectionId, contract.address);
-      await submitTransactionAsync(alice, changeAdminTx);
-
-      expect(await isAllowlisted(api, collectionId, bob.address)).to.be.false;
-
-      {
-        const transferTx = contract.tx.toggleAllowList({value, gasLimit}, collectionId, bob.address, true);
-        const events = await submitTransactionAsync(alice, transferTx);
-        const result = getGenericResult(events);
-        expect(result.success).to.be.true;
-
-        expect(await isAllowlisted(api, collectionId, bob.address)).to.be.true;
-      }
-      {
-        const transferTx = contract.tx.toggleAllowList({value, gasLimit}, collectionId, bob.address, false);
-        const events = await submitTransactionAsync(alice, transferTx);
-        const result = getGenericResult(events);
-        expect(result.success).to.be.true;
-
-        expect(await isAllowlisted(api, collectionId, bob.address)).to.be.false;
-      }
-    });
-  });
-});
modifiedtests/src/createMultipleItemsEx.test.tsdiffbeforeafterboth
--- a/tests/src/createMultipleItemsEx.test.ts
+++ b/tests/src/createMultipleItemsEx.test.ts
@@ -178,13 +178,12 @@
       tokenPrefix: 'COL',
     }, 0);
 
-    const api = helper.api;
-    await helper.signTransaction(alice, api?.tx.unique.createMultipleItemsEx(collection.collectionId, {
+    await helper.executeExtrinsic(alice, 'api.tx.unique.createMultipleItemsEx',[collection.collectionId, {
       Fungible: new Map([
         [JSON.stringify({Substrate: alice.address}), 50],
         [JSON.stringify({Substrate: bob.address}), 100],
       ]),
-    }));
+    }], true);
 
     expect(await collection.getBalance({Substrate: alice.address})).to.be.equal(50n);
     expect(await collection.getBalance({Substrate: bob.address})).to.be.equal(100n);
@@ -200,8 +199,7 @@
       ],
     });
 
-    const api = helper.api;
-    await helper.signTransaction(alice, api?.tx.unique.createMultipleItemsEx(collection.collectionId, {
+    await helper.executeExtrinsic(alice, 'api.tx.unique.createMultipleItemsEx', [collection.collectionId, {
       RefungibleMultipleOwners: {
         users: new Map([
           [JSON.stringify({Substrate: alice.address}), 1],
@@ -211,7 +209,7 @@
           {key: 'k', value: 'v'},
         ],
       },
-    }));
+    }], true);
     const tokenId = await collection.getLastTokenId();
     expect(tokenId).to.be.equal(1);
     expect(await collection.getTokenBalance(1, {Substrate: alice.address})).to.be.equal(1n);
@@ -228,9 +226,7 @@
       ],
     });
 
-    const api = helper.api;
-
-    await helper.signTransaction(alice, api?.tx.unique.createMultipleItemsEx(collection.collectionId, {
+    await helper.executeExtrinsic(alice, 'api.tx.unique.createMultipleItemsEx', [collection.collectionId, {
       RefungibleMultipleItems: [
         {
           user: {Substrate: alice.address}, pieces: 1,
@@ -245,7 +241,7 @@
           ],
         },
       ],
-    }));
+    }], true);
 
     expect(await collection.getLastTokenId()).to.be.equal(2);
     expect(await collection.getTokenBalance(1, {Substrate: alice.address})).to.be.equal(1n);
modifiedtests/src/creditFeesToTreasury.test.tsdiffbeforeafterboth
--- a/tests/src/creditFeesToTreasury.test.ts
+++ b/tests/src/creditFeesToTreasury.test.ts
@@ -29,7 +29,7 @@
 /*eslint no-async-promise-executor: "off"*/
 function skipInflationBlock(api: ApiPromise): Promise<void> {
   const promise = new Promise<void>(async (resolve) => {
-    const blockInterval = (await api.consts.inflation.inflationBlockInterval).toNumber();
+    const blockInterval = api.consts.inflation.inflationBlockInterval.toNumber();
     const unsubscribe = await api.rpc.chain.subscribeNewHeads(head => {
       const currentBlock = head.number.toNumber();
       if (currentBlock % blockInterval < blockInterval - 10) {
@@ -56,21 +56,21 @@
   });
 
   itSub('Total issuance does not change', async ({helper}) => {
-    const api = helper.api!;
+    const api = helper.getApi();
     await skipInflationBlock(api);
     await helper.wait.newBlocks(1);
 
-    const totalBefore = (await api.query.balances.totalIssuance()).toBigInt();
+    const totalBefore = (await helper.callRpc('api.query.balances.totalIssuance', [])).toBigInt();
 
     await helper.balance.transferToSubstrate(alice, bob.address, 1n);
 
-    const totalAfter = (await api.query.balances.totalIssuance()).toBigInt();
+    const totalAfter = (await helper.callRpc('api.query.balances.totalIssuance', [])).toBigInt();
 
     expect(totalAfter).to.be.equal(totalBefore);
   });
 
   itSub('Sender balance decreased by fee+sent amount, Treasury balance increased by fee', async ({helper}) => {
-    await skipInflationBlock(helper.api!);
+    await skipInflationBlock(helper.getApi());
     await helper.wait.newBlocks(1);
 
     const treasuryBalanceBefore = await helper.balance.getSubstrate(TREASURY);
@@ -89,7 +89,7 @@
   });
 
   itSub('Treasury balance increased by failed tx fee', async ({helper}) => {
-    const api = helper.api!;
+    const api = helper.getApi();
     await helper.wait.newBlocks(1);
 
     const treasuryBalanceBefore = await helper.balance.getSubstrate(TREASURY);
@@ -107,7 +107,7 @@
   });
 
   itSub('NFT Transactions also send fees to Treasury', async ({helper}) => {
-    await skipInflationBlock(helper.api!);
+    await skipInflationBlock(helper.getApi());
     await helper.wait.newBlocks(1);
 
     const treasuryBalanceBefore = await helper.balance.getSubstrate(TREASURY);
@@ -125,7 +125,7 @@
 
   itSub('Fees are sane', async ({helper}) => {
     const unique = helper.balance.getOneTokenNominal();
-    await skipInflationBlock(helper.api!);
+    await skipInflationBlock(helper.getApi());
     await helper.wait.newBlocks(1);
 
     const aliceBalanceBefore = await helper.balance.getSubstrate(alice.address);
@@ -140,7 +140,7 @@
   });
 
   itSub('NFT Transfer fee is close to 0.1 Unique', async ({helper}) => {
-    await skipInflationBlock(helper.api!);
+    await skipInflationBlock(helper.getApi());
     await helper.wait.newBlocks(1);
 
     const collection = await helper.nft.mintCollection(alice, {
addedtests/src/deprecated-helpers/contracthelpers.tsdiffbeforeafterboth
--- /dev/null
+++ b/tests/src/deprecated-helpers/contracthelpers.ts
@@ -0,0 +1,114 @@
+// Copyright 2019-2022 Unique Network (Gibraltar) Ltd.
+// This file is part of Unique Network.
+
+// Unique Network is free software: you can redistribute it and/or modify
+// it under the terms of the GNU General Public License as published by
+// the Free Software Foundation, either version 3 of the License, or
+// (at your option) any later version.
+
+// Unique Network is distributed in the hope that it will be useful,
+// but WITHOUT ANY WARRANTY; without even the implied warranty of
+// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+// GNU General Public License for more details.
+
+// You should have received a copy of the GNU General Public License
+// along with Unique Network. If not, see <http://www.gnu.org/licenses/>.
+
+import chai from 'chai';
+import chaiAsPromised from 'chai-as-promised';
+import {submitTransactionAsync, submitTransactionExpectFailAsync} from '../substrate/substrate-api';
+import fs from 'fs';
+import {Abi, CodePromise, ContractPromise as Contract} from '@polkadot/api-contract';
+import {IKeyringPair} from '@polkadot/types/types';
+import {ApiPromise} from '@polkadot/api';
+
+chai.use(chaiAsPromised);
+const expect = chai.expect;
+import {findUnusedAddress, getGenericResult} from './helpers';
+
+const value = 0;
+const gasLimit = '200000000000';
+const endowment = '100000000000000000';
+
+/* eslint no-async-promise-executor: "off" */
+function deployContract(alice: IKeyringPair, code: CodePromise, constructor = 'default', ...args: any[]): Promise<Contract> {
+  return new Promise<Contract>(async (resolve) => {
+    const unsub = await (code as any)
+      .tx[constructor]({value: endowment, gasLimit}, ...args)
+      .signAndSend(alice, (result: any) => {
+        if (result.status.isInBlock || result.status.isFinalized) {
+          // here we have an additional field in the result, containing the blueprint
+          resolve((result as any).contract);
+          unsub();
+        }
+      });
+  });
+}
+
+async function prepareDeployer(api: ApiPromise, privateKeyWrapper: (account: string) => IKeyringPair) {
+  // Find unused address
+  const deployer = await findUnusedAddress(api, privateKeyWrapper);
+
+  // Transfer balance to it
+  const alice = privateKeyWrapper('//Alice');
+  const amount = BigInt(endowment) + 10n**15n;
+  const tx = api.tx.balances.transfer(deployer.address, amount);
+  await submitTransactionAsync(alice, tx);
+
+  return deployer;
+}
+
+export async function deployFlipper(api: ApiPromise, privateKeyWrapper: (account: string) => IKeyringPair): Promise<[Contract, IKeyringPair]> {
+  const metadata = JSON.parse(fs.readFileSync('./src/flipper/metadata.json').toString('utf-8'));
+  const abi = new Abi(metadata);
+
+  const deployer = await prepareDeployer(api, privateKeyWrapper);
+
+  const wasm = fs.readFileSync('./src/flipper/flipper.wasm');
+
+  const code = new CodePromise(api, abi, wasm);
+
+  const contract = (await deployContract(deployer, code, 'new', true)) as Contract;
+
+  const initialGetResponse = await getFlipValue(contract, deployer);
+  expect(initialGetResponse).to.be.true;
+
+  return [contract, deployer];
+}
+
+export async function getFlipValue(contract: Contract, deployer: IKeyringPair) {
+  const result = await contract.query.get(deployer.address, {value, gasLimit});
+
+  if(!result.result.isOk) {
+    throw 'Failed to get flipper value';
+  }
+  return (result.result.asOk.data[0] == 0x00) ? false : true;
+}
+
+export async function toggleFlipValueExpectSuccess(sender: IKeyringPair, contract: Contract) {
+  const tx = contract.tx.flip({value, gasLimit});
+  const events = await submitTransactionAsync(sender, tx);
+  const result = getGenericResult(events);
+
+  expect(result.success).to.be.true;
+}
+
+export async function toggleFlipValueExpectFailure(sender: IKeyringPair, contract: Contract) {
+  const tx = contract.tx.flip({value, gasLimit});
+  await expect(submitTransactionExpectFailAsync(sender, tx)).to.be.rejected;
+}
+
+export async function deployTransferContract(api: ApiPromise, privateKeyWrapper: (account: string) => IKeyringPair): Promise<[Contract, IKeyringPair]> {
+  const metadata = JSON.parse(fs.readFileSync('./src/transfer_contract/metadata.json').toString('utf-8'));
+  const abi = new Abi(metadata);
+
+  const deployer = await prepareDeployer(api, privateKeyWrapper);
+
+  const wasm = fs.readFileSync('./src/transfer_contract/nft_transfer.wasm');
+
+  const code = new CodePromise(api, abi, wasm);
+
+  const contract = await deployContract(deployer, code);
+
+  return [contract, deployer];
+}
addedtests/src/deprecated-helpers/eth/helpers.d.tsdiffbeforeafterboth
--- /dev/null
+++ b/tests/src/deprecated-helpers/eth/helpers.d.ts
@@ -0,0 +1,17 @@
+// Copyright 2019-2022 Unique Network (Gibraltar) Ltd.
+// This file is part of Unique Network.
+
+// Unique Network is free software: you can redistribute it and/or modify
+// it under the terms of the GNU General Public License as published by
+// the Free Software Foundation, either version 3 of the License, or
+// (at your option) any later version.
+
+// Unique Network is distributed in the hope that it will be useful,
+// but WITHOUT ANY WARRANTY; without even the implied warranty of
+// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+// GNU General Public License for more details.
+
+// You should have received a copy of the GNU General Public License
+// along with Unique Network. If not, see <http://www.gnu.org/licenses/>.
+
+declare module 'solc';
\ No newline at end of file
addedtests/src/deprecated-helpers/eth/helpers.tsdiffbeforeafterboth
--- /dev/null
+++ b/tests/src/deprecated-helpers/eth/helpers.ts
@@ -0,0 +1,451 @@
+// Copyright 2019-2022 Unique Network (Gibraltar) Ltd.
+// This file is part of Unique Network.
+
+// Unique Network is free software: you can redistribute it and/or modify
+// it under the terms of the GNU General Public License as published by
+// the Free Software Foundation, either version 3 of the License, or
+// (at your option) any later version.
+
+// Unique Network is distributed in the hope that it will be useful,
+// but WITHOUT ANY WARRANTY; without even the implied warranty of
+// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+// GNU General Public License for more details.
+
+// You should have received a copy of the GNU General Public License
+// along with Unique Network. If not, see <http://www.gnu.org/licenses/>.
+
+// eslint-disable-next-line @typescript-eslint/triple-slash-reference
+/// <reference path="helpers.d.ts" />
+
+import {ApiPromise} from '@polkadot/api';
+import {IKeyringPair} from '@polkadot/types/types';
+import {addressToEvm, evmToAddress} from '@polkadot/util-crypto';
+import {expect} from 'chai';
+import * as solc from 'solc';
+import Web3 from 'web3';
+import config from '../../config';
+import getBalance from '../../substrate/get-balance';
+import usingApi, {submitTransactionAsync} from '../../substrate/substrate-api';
+import waitNewBlocks from '../../substrate/wait-new-blocks';
+import {CollectionMode, CrossAccountId, getDetailedCollectionInfo, getGenericResult, UNIQUE} from '../helpers';
+import collectionHelpersAbi from '../../eth/collectionHelpersAbi.json';
+import fungibleAbi from '../../eth/fungibleAbi.json';
+import nonFungibleAbi from '../../eth/nonFungibleAbi.json';
+import refungibleAbi from '../../eth/reFungibleAbi.json';
+import refungibleTokenAbi from '../../eth/reFungibleTokenAbi.json';
+import contractHelpersAbi from '../../eth/util/contractHelpersAbi.json';
+
+export const GAS_ARGS = {gas: 2500000};
+
+export enum SponsoringMode {
+  Disabled = 0,
+  Allowlisted = 1,
+  Generous = 2,
+}
+
+let web3Connected = false;
+export async function usingWeb3<T>(cb: (web3: Web3) => Promise<T> | T): Promise<T> {
+  if (web3Connected) throw new Error('do not nest usingWeb3 calls');
+  web3Connected = true;
+
+  const provider = new Web3.providers.WebsocketProvider(config.substrateUrl);
+  const web3 = new Web3(provider);
+
+  try {
+    return await cb(web3);
+  } finally {
+    // provider.disconnect(3000, 'normal disconnect');
+    provider.connection.close();
+    web3Connected = false;
+  }
+}
+
+function encodeIntBE(v: number): number[] {
+  if (v >= 0xffffffff || v < 0) throw new Error('id overflow');
+  return [
+    v >> 24,
+    (v >> 16) & 0xff,
+    (v >> 8) & 0xff,
+    v & 0xff,
+  ];
+}
+
+export async function getCollectionAddressFromResult(api: ApiPromise, result: any) {
+  const collectionIdAddress = normalizeAddress(result.events.CollectionCreated.returnValues.collectionId);
+  const collectionId = collectionIdFromAddress(collectionIdAddress);  
+  const collection = (await getDetailedCollectionInfo(api, collectionId))!;
+  return {collectionIdAddress, collectionId, collection};
+}
+
+export function collectionIdToAddress(collection: number): string {
+  const buf = Buffer.from([0x17, 0xc4, 0xe6, 0x45, 0x3c, 0xc4, 0x9a, 0xaa, 0xae, 0xac, 0xa8, 0x94, 0xe6, 0xd9, 0x68, 0x3e,
+    ...encodeIntBE(collection),
+  ]);
+  return Web3.utils.toChecksumAddress('0x' + buf.toString('hex'));
+}
+export function collectionIdFromAddress(address: string): number {
+  if (!address.startsWith('0x'))
+    throw 'address not starts with "0x"';
+  if (address.length > 42)
+    throw 'address length is more than 20 bytes';
+  return Number('0x' + address.substring(address.length - 8));
+}
+  
+export function normalizeAddress(address: string): string {
+  return '0x' + address.substring(address.length - 40);
+}
+
+export function tokenIdToAddress(collection: number, token: number): string {
+  const buf = Buffer.from([0xf8, 0x23, 0x8c, 0xcf, 0xff, 0x8e, 0xd8, 0x87, 0x46, 0x3f, 0xd5, 0xe0,
+    ...encodeIntBE(collection),
+    ...encodeIntBE(token),
+  ]);
+  return Web3.utils.toChecksumAddress('0x' + buf.toString('hex'));
+}
+
+export function tokenIdFromAddress(address: string) {
+  if (!address.startsWith('0x'))
+    throw 'address not starts with "0x"';
+  if (address.length > 42)
+    throw 'address length is more than 20 bytes';
+  return {
+    collectionId: Number('0x' + address.substring(address.length - 16, address.length - 8)),
+    tokenId: Number('0x' + address.substring(address.length - 8)),
+  };
+}
+
+export function tokenIdToCross(collection: number, token: number): CrossAccountId {
+  return {
+    Ethereum: tokenIdToAddress(collection, token),
+  };
+}
+
+export function createEthAccount(web3: Web3) {
+  const account = web3.eth.accounts.create();
+  web3.eth.accounts.wallet.add(account.privateKey);
+  return account.address;
+}
+
+export async function createEthAccountWithBalance(api: ApiPromise, web3: Web3, privateKeyWrapper: (account: string) => IKeyringPair) {
+  const alice = privateKeyWrapper('//Alice');
+  const account = createEthAccount(web3);
+  await transferBalanceToEth(api, alice, account);
+
+  return account;
+}
+
+export async function transferBalanceToEth(api: ApiPromise, source: IKeyringPair, target: string, amount = 1000n * UNIQUE) {
+  const tx = api.tx.balances.transfer(evmToAddress(target), amount);
+  const events = await submitTransactionAsync(source, tx);
+  const result = getGenericResult(events);
+  expect(result.success).to.be.true;
+}
+
+export async function createRFTCollection(api: ApiPromise, web3: Web3, owner: string) {
+  const collectionHelper = evmCollectionHelpers(web3, owner);
+  const result = await collectionHelper.methods
+    .createRFTCollection('A', 'B', 'C')
+    .send({value: Number(2n * UNIQUE)});
+  return await getCollectionAddressFromResult(api, result);
+}
+
+
+export async function createNonfungibleCollection(api: ApiPromise, web3: Web3, owner: string) {
+  const collectionHelper = evmCollectionHelpers(web3, owner);
+  const result = await collectionHelper.methods
+    .createNonfungibleCollection('A', 'B', 'C')
+    .send({value: Number(2n * UNIQUE)});
+  return await getCollectionAddressFromResult(api, result);
+}
+
+export function uniqueNFT(web3: Web3, address: string, owner: string) {
+  return new web3.eth.Contract(nonFungibleAbi as any, address, {
+    from: owner,
+    ...GAS_ARGS,
+  });
+}
+
+export function uniqueRefungible(web3: Web3, collectionAddress: string, owner: string) {
+  return new web3.eth.Contract(refungibleAbi as any, collectionAddress, {
+    from: owner,
+    ...GAS_ARGS,
+  });
+}
+
+export function uniqueRefungibleToken(web3: Web3, tokenAddress: string, owner: string | undefined = undefined) {
+  return new web3.eth.Contract(refungibleTokenAbi as any, tokenAddress, {
+    from: owner,
+    ...GAS_ARGS,
+  });
+}
+
+export async function itWeb3(name: string, cb: (apis: { web3: Web3, api: ApiPromise, privateKeyWrapper: (account: string) => IKeyringPair }) => any, opts: { only?: boolean, skip?: boolean } = {}) {
+  let i: any = it;
+  if (opts.only) i = i.only;
+  else if (opts.skip) i = i.skip;
+  i(name, async () => {
+    await usingApi(async (api, privateKeyWrapper) => {
+      await usingWeb3(async web3 => {
+        await cb({api, web3, privateKeyWrapper});
+      });
+    });
+  });
+}
+itWeb3.only = (name: string, cb: (apis: { web3: Web3, api: ApiPromise, privateKeyWrapper: (account: string) => IKeyringPair }) => any) => itWeb3(name, cb, {only: true});
+itWeb3.skip = (name: string, cb: (apis: { web3: Web3, api: ApiPromise, privateKeyWrapper: (account: string) => IKeyringPair }) => any) => itWeb3(name, cb, {skip: true});
+
+export async function generateSubstrateEthPair(web3: Web3) {
+  const account = web3.eth.accounts.create();
+  evmToAddress(account.address);
+}
+
+type NormalizedEvent = {
+    address: string,
+    event: string,
+    args: { [key: string]: string }
+};
+
+export function normalizeEvents(events: any): NormalizedEvent[] {
+  const output = [];
+  for (const key of Object.keys(events)) {
+    if (key.match(/^[0-9]+$/)) {
+      output.push(events[key]);
+    } else if (Array.isArray(events[key])) {
+      output.push(...events[key]);
+    } else {
+      output.push(events[key]);
+    }
+  }
+  output.sort((a, b) => a.logIndex - b.logIndex);
+  return output.map(({address, event, returnValues}) => {
+    const args: { [key: string]: string } = {};
+    for (const key of Object.keys(returnValues)) {
+      if (!key.match(/^[0-9]+$/)) {
+        args[key] = returnValues[key];
+      }
+    }
+    return {
+      address,
+      event,
+      args,
+    };
+  });
+}
+
+export async function recordEvents(contract: any, action: () => Promise<void>): Promise<NormalizedEvent[]> {
+  const out: any = [];
+  contract.events.allEvents((_: any, event: any) => {
+    out.push(event);
+  });
+  await action();
+  return normalizeEvents(out);
+}
+
+export function subToEthLowercase(eth: string): string {
+  const bytes = addressToEvm(eth);
+  return '0x' + Buffer.from(bytes).toString('hex');
+}
+
+export function subToEth(eth: string): string {
+  return Web3.utils.toChecksumAddress(subToEthLowercase(eth));
+}
+
+export interface CompiledContract {
+  abi: any,
+  object: string,
+}
+
+export function compileContract(name: string, src: string) : CompiledContract {
+  const out = JSON.parse(solc.compile(JSON.stringify({
+    language: 'Solidity',
+    sources: {
+      [`${name}.sol`]: {
+        content: `
+          // SPDX-License-Identifier: UNLICENSED
+          pragma solidity ^0.8.6;
+
+          ${src}
+        `,
+      },
+    },
+    settings: {
+      outputSelection: {
+        '*': {
+          '*': ['*'],
+        },
+      },
+    },
+  }))).contracts[`${name}.sol`][name];
+
+  return {
+    abi: out.abi,
+    object: '0x' + out.evm.bytecode.object,
+  };
+}
+
+export async function deployFlipper(web3: Web3, deployer: string) {
+  const compiled = compileContract('Flipper', `
+    contract Flipper {
+      bool value = false;
+      function flip() public {
+        value = !value;
+      }
+      function getValue() public view returns (bool) {
+        return value;
+      }
+    }
+  `);
+  const flipperContract = new web3.eth.Contract(compiled.abi, undefined, {
+    data: compiled.object,
+    from: deployer,
+    ...GAS_ARGS,
+  });
+  const flipper = await flipperContract.deploy({data: compiled.object}).send({from: deployer});
+
+  return flipper;
+}
+
+export async function deployCollector(web3: Web3, deployer: string) {
+  const compiled = compileContract('Collector', `
+    contract Collector {
+      uint256 collected;
+      fallback() external payable {
+        giveMoney();
+      }
+      function giveMoney() public payable {
+        collected += msg.value;
+      }
+      function getCollected() public view returns (uint256) {
+        return collected;
+      }
+      function getUnaccounted() public view returns (uint256) {
+        return address(this).balance - collected;
+      }
+
+      function withdraw(address payable target) public {
+        target.transfer(collected);
+        collected = 0;
+      }
+    }
+  `);
+  const collectorContract = new web3.eth.Contract(compiled.abi, undefined, {
+    data: compiled.object,
+    from: deployer,
+    ...GAS_ARGS,
+  });
+  const collector = await collectorContract.deploy({data: compiled.object}).send({from: deployer});
+
+  return collector;
+}
+
+/** 
+ * pallet evm_contract_helpers
+ * @param web3 
+ * @param caller - eth address
+ * @returns 
+ */
+export function contractHelpers(web3: Web3, caller: string) {
+  return new web3.eth.Contract(contractHelpersAbi as any, '0x842899ECF380553E8a4de75bF534cdf6fBF64049', {from: caller, ...GAS_ARGS});
+}
+
+/** 
+ * evm collection helper
+ * @param web3 
+ * @param caller - eth address
+ * @returns 
+ */
+export function evmCollectionHelpers(web3: Web3, caller: string) {
+  return new web3.eth.Contract(collectionHelpersAbi as any, '0x6c4e9fe1ae37a41e93cee429e8e1881abdcbb54f', {from: caller, ...GAS_ARGS});
+}
+
+/** 
+ * evm collection
+ * @param web3 
+ * @param caller - eth address
+ * @returns 
+ */
+export function evmCollection(web3: Web3, caller: string, collection: string, mode: CollectionMode = {type: 'NFT'}) {
+  let abi;
+  switch (mode.type) {
+    case 'Fungible':
+      abi = fungibleAbi;
+      break;
+    
+    case 'NFT':
+      abi = nonFungibleAbi;
+      break;
+    
+    case 'ReFungible':
+      abi = refungibleAbi;
+      break;
+
+    default:
+      throw 'Bad collection mode';
+  }
+  const contract = new web3.eth.Contract(abi as any, collection, {from: caller, ...GAS_ARGS});
+  return contract;
+}
+
+/**
+ * Execute ethereum method call using substrate account
+ * @param to target contract
+ * @param mkTx - closure, receiving `contract.methods`, and returning method call,
+ * to be used as following (assuming `to` = erc20 contract):
+ * `m => m.transfer(to, amount)`
+ *
+ * # Example
+ * ```ts
+ * executeEthTxOnSub(api, alice, erc20Contract, m => m.transfer(target, amount));
+ * ```
+ */
+export async function executeEthTxOnSub(web3: Web3, api: ApiPromise, from: IKeyringPair, to: any, mkTx: (methods: any) => any, {value = 0}: {value?: bigint | number} = { }) {
+  const tx = api.tx.evm.call(
+    subToEth(from.address),
+    to.options.address,
+    mkTx(to.methods).encodeABI(),
+    value,
+    GAS_ARGS.gas,
+    await web3.eth.getGasPrice(),
+    null,
+    null,
+    [],
+  );
+  const events = await submitTransactionAsync(from, tx);
+  expect(events.some(({event: {section, method}}) => section == 'evm' && method == 'Executed')).to.be.true;
+}
+
+export async function ethBalanceViaSub(api: ApiPromise, address: string): Promise<bigint> {
+  return (await getBalance(api, [evmToAddress(address)]))[0];
+}
+
+/**
+ * Measure how much gas given closure consumes
+ *
+ * @param user which user balance will be checked
+ */
+export async function recordEthFee(api: ApiPromise, user: string, call: () => Promise<any>): Promise<bigint> {
+  const before = await ethBalanceViaSub(api, user);
+
+  await call();
+
+  // In dev mode, the transaction might not finish processing in time
+  await waitNewBlocks(api, 1);
+  const after = await ethBalanceViaSub(api, user);
+
+  // Can't use .to.be.less, because chai doesn't supports bigint
+  expect(after < before).to.be.true;
+
+  return before - after;
+}
+
+type ElementOf<A> = A extends readonly (infer T)[] ? T : never;
+// I want a fancier api, not a memory efficiency
+export function* cartesian<T extends Array<Array<any>>, R extends Array<any>>(internalRest: [...R], ...args: [...T]): Generator<[...R, ...{[K in keyof T]: ElementOf<T[K]>}]> {
+  if(args.length === 0) {
+    yield internalRest as any;
+    return;
+  }
+  for(const value of args[0]) {
+    yield* cartesian([...internalRest, value], ...args.slice(1)) as any;
+  }
+}
\ No newline at end of file
addedtests/src/deprecated-helpers/helpers.tsdiffbeforeafterboth
--- /dev/null
+++ b/tests/src/deprecated-helpers/helpers.ts
@@ -0,0 +1,1879 @@
+// Copyright 2019-2022 Unique Network (Gibraltar) Ltd.
+// This file is part of Unique Network.
+
+// Unique Network is free software: you can redistribute it and/or modify
+// it under the terms of the GNU General Public License as published by
+// the Free Software Foundation, either version 3 of the License, or
+// (at your option) any later version.
+
+// Unique Network is distributed in the hope that it will be useful,
+// but WITHOUT ANY WARRANTY; without even the implied warranty of
+// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+// GNU General Public License for more details.
+
+// You should have received a copy of the GNU General Public License
+// along with Unique Network. If not, see <http://www.gnu.org/licenses/>.
+
+import '../interfaces/augment-api-rpc';
+import '../interfaces/augment-api-query';
+import {ApiPromise, Keyring} from '@polkadot/api';
+import type {AccountId, EventRecord, Event, BlockNumber} from '@polkadot/types/interfaces';
+import type {GenericEventData} from '@polkadot/types';
+import {AnyTuple, IEvent, IKeyringPair} from '@polkadot/types/types';
+import {evmToAddress} from '@polkadot/util-crypto';
+import {AnyNumber} from '@polkadot/types-codec/types';
+import BN from 'bn.js';
+import chai from 'chai';
+import chaiAsPromised from 'chai-as-promised';
+import {default as usingApi, executeTransaction, submitTransactionAsync, submitTransactionExpectFailAsync} from '../substrate/substrate-api';
+import {hexToStr, strToUTF16, utf16ToStr} from './util';
+import {UpDataStructsRpcCollection, UpDataStructsCreateItemData, UpDataStructsProperty} from '@polkadot/types/lookup';
+import {UpDataStructsTokenChild} from '../interfaces';
+import {Context} from 'mocha';
+
+chai.use(chaiAsPromised);
+const expect = chai.expect;
+
+export type CrossAccountId = {
+  Substrate: string,
+} | {
+  Ethereum: string,
+};
+
+
+export enum Pallets {
+  Inflation = 'inflation',
+  RmrkCore = 'rmrkcore',
+  RmrkEquip = 'rmrkequip',
+  ReFungible = 'refungible',
+  Fungible = 'fungible',
+  NFT = 'nonfungible',
+  Scheduler = 'scheduler',
+  AppPromotion = 'apppromotion',
+}
+
+export async function isUnique(): Promise<boolean> {
+  return usingApi(async api => {
+    const chain = await api.rpc.system.chain();
+
+    return chain.eq('UNIQUE');
+  });
+}
+
+export async function isQuartz(): Promise<boolean> {
+  return usingApi(async api => {
+    const chain = await api.rpc.system.chain();
+
+    return chain.eq('QUARTZ');
+  });
+}
+
+let modulesNames: any;
+export function getModuleNames(api: ApiPromise): string[] {
+  if (typeof modulesNames === 'undefined')
+    modulesNames = api.runtimeMetadata.asLatest.pallets.map(m => m.name.toString().toLowerCase());
+  return modulesNames;
+}
+
+export async function missingRequiredPallets(requiredPallets: string[]): Promise<string[]> {
+  return await usingApi(async api => {
+    const pallets = getModuleNames(api);
+
+    return requiredPallets.filter(p => !pallets.includes(p));
+  });
+}
+
+export async function checkPalletsPresence(requiredPallets: string[]): Promise<boolean> {
+  return (await missingRequiredPallets(requiredPallets)).length == 0;
+}
+
+export async function requirePallets(mocha: Context, requiredPallets: string[]) {
+  const missingPallets = await missingRequiredPallets(requiredPallets);
+
+  if (missingPallets.length > 0) {
+    const skippingTestMsg = `\tSkipping test "${mocha.test?.title}".`;
+    const missingPalletsMsg = `\tThe following pallets are missing:\n\t- ${missingPallets.join('\n\t- ')}`;
+    const skipMsg = `${skippingTestMsg}\n${missingPalletsMsg}`;
+
+    console.error('\x1b[38:5:208m%s\x1b[0m', skipMsg);
+
+    mocha.skip();
+  }
+}
+
+export function bigIntToSub(api: ApiPromise, number: bigint) {
+  return api.registry.createType('AccountId', '0x' + number.toString(16).padStart(64, '0')).toJSON();
+}
+
+export function bigIntToDecimals(number: bigint, decimals = 18): string {
+  const numberStr = number.toString();
+  const dotPos = numberStr.length - decimals;
+
+  if (dotPos <= 0) {
+    return '0.' + '0'.repeat(Math.abs(dotPos)) + numberStr;
+  } else {
+    const intPart = numberStr.substring(0, dotPos);
+    const fractPart = numberStr.substring(dotPos);
+    return intPart + '.' + fractPart;
+  }
+}
+
+export function normalizeAccountId(input: string | AccountId | CrossAccountId | IKeyringPair): CrossAccountId {
+  if (typeof input === 'string') {
+    if (input.length >= 47) {
+      return {Substrate: input};
+    } else if (input.length === 42 && input.startsWith('0x')) {
+      return {Ethereum: input.toLowerCase()};
+    } else if (input.length === 40 && !input.startsWith('0x')) {
+      return {Ethereum: '0x' + input.toLowerCase()};
+    } else {
+      throw new Error(`Unknown address format: "${input}"`);
+    }
+  }
+  if ('address' in input) {
+    return {Substrate: input.address};
+  }
+  if ('Ethereum' in input) {
+    return {
+      Ethereum: input.Ethereum.toLowerCase(),
+    };
+  } else if ('ethereum' in input) {
+    return {
+      Ethereum: (input as any).ethereum.toLowerCase(),
+    };
+  } else if ('Substrate' in input) {
+    return input;
+  } else if ('substrate' in input) {
+    return {
+      Substrate: (input as any).substrate,
+    };
+  }
+
+  // AccountId
+  return {Substrate: input.toString()};
+}
+export function toSubstrateAddress(input: string | CrossAccountId | IKeyringPair): string {
+  input = normalizeAccountId(input);
+  if ('Substrate' in input) {
+    return input.Substrate;
+  } else {
+    return evmToAddress(input.Ethereum);
+  }
+}
+
+export const U128_MAX = (1n << 128n) - 1n;
+
+const MICROUNIQUE = 1_000_000_000_000n;
+const MILLIUNIQUE = 1_000n * MICROUNIQUE;
+const CENTIUNIQUE = 10n * MILLIUNIQUE;
+export const UNIQUE = 100n * CENTIUNIQUE;
+
+interface GenericResult<T> {
+  success: boolean;
+  data: T | null;
+}
+
+interface CreateCollectionResult {
+  success: boolean;
+  collectionId: number;
+}
+
+interface CreateItemResult {
+  success: boolean;
+  collectionId: number;
+  itemId: number;
+  recipient?: CrossAccountId;
+  amount?: number;
+}
+
+interface DestroyItemResult {
+  success: boolean;
+  collectionId: number;
+  itemId: number;
+  owner: CrossAccountId;
+  amount: number;
+}
+
+interface TransferResult {
+  collectionId: number;
+  itemId: number;
+  sender?: CrossAccountId;
+  recipient?: CrossAccountId;
+  value: bigint;
+}
+
+interface IReFungibleOwner {
+  fraction: BN;
+  owner: number[];
+}
+
+interface IGetMessage {
+  checkMsgUnqMethod: string;
+  checkMsgTrsMethod: string;
+  checkMsgSysMethod: string;
+}
+
+export interface IFungibleTokenDataType {
+  value: number;
+}
+
+export interface IChainLimits {
+  collectionNumbersLimit: number;
+  accountTokenOwnershipLimit: number;
+  collectionsAdminsLimit: number;
+  customDataLimit: number;
+  nftSponsorTransferTimeout: number;
+  fungibleSponsorTransferTimeout: number;
+  refungibleSponsorTransferTimeout: number;
+  //offchainSchemaLimit: number;
+  //constOnChainSchemaLimit: number;
+}
+
+export interface IReFungibleTokenDataType {
+  owner: IReFungibleOwner[];
+}
+
+export function uniqueEventMessage(events: EventRecord[]): IGetMessage {
+  let checkMsgUnqMethod = '';
+  let checkMsgTrsMethod = '';
+  let checkMsgSysMethod = '';
+  events.forEach(({event: {method, section}}) => {
+    if (section === 'common') {
+      checkMsgUnqMethod = method;
+    } else if (section === 'treasury') {
+      checkMsgTrsMethod = method;
+    } else if (section === 'system') {
+      checkMsgSysMethod = method;
+    } else { return null; }
+  });
+  const result: IGetMessage = {
+    checkMsgUnqMethod,
+    checkMsgTrsMethod,
+    checkMsgSysMethod,
+  };
+  return result;
+}
+
+export function getEvent<T extends Event>(events: EventRecord[], check: (event: IEvent<AnyTuple>) => event is T): T | undefined {
+  const event = events.find(r => check(r.event));
+  if (!event) return;
+  return event.event as T;
+}
+
+export function getGenericResult<T>(events: EventRecord[]): GenericResult<T>;
+export function getGenericResult<T>(
+  events: EventRecord[],
+  expectSection: string,
+  expectMethod: string,
+  extractAction: (data: GenericEventData) => T
+): GenericResult<T>;
+
+export function getGenericResult<T>(
+  events: EventRecord[],
+  expectSection?: string,
+  expectMethod?: string,
+  extractAction?: (data: GenericEventData) => T,
+): GenericResult<T> {
+  let success = false;
+  let successData = null;
+
+  events.forEach(({event: {data, method, section}}) => {
+    // console.log(`    ${phase}: ${section}.${method}:: ${data}`);
+    if (method === 'ExtrinsicSuccess') {
+      success = true;
+    } else if ((expectSection == section) && (expectMethod == method)) {
+      successData = extractAction!(data as any);
+    }
+  });
+
+  const result: GenericResult<T> = {
+    success,
+    data: successData,
+  };
+  return result;
+}
+
+export function getCreateCollectionResult(events: EventRecord[]): CreateCollectionResult {
+  const genericResult = getGenericResult(events, 'common', 'CollectionCreated', (data) => parseInt(data[0].toString(), 10));
+  const result: CreateCollectionResult = {
+    success: genericResult.success,
+    collectionId: genericResult.data ?? 0,
+  };
+  return result;
+}
+
+export function getCreateItemsResult(events: EventRecord[]): CreateItemResult[] {
+  const results: CreateItemResult[] = [];
+
+  const genericResult = getGenericResult<CreateItemResult[]>(events, 'common', 'ItemCreated', (data) => {
+    const collectionId = parseInt(data[0].toString(), 10);
+    const itemId = parseInt(data[1].toString(), 10);
+    const recipient = normalizeAccountId(data[2].toJSON() as any);
+    const amount = parseInt(data[3].toString(), 10);
+
+    const itemRes: CreateItemResult = {
+      success: true,
+      collectionId,
+      itemId,
+      recipient,
+      amount,
+    };
+
+    results.push(itemRes);
+    return results;
+  });
+
+  if (!genericResult.success) return [];
+  return results;
+}
+
+export function getCreateItemResult(events: EventRecord[]): CreateItemResult {
+  const genericResult = getGenericResult(events, 'common', 'ItemCreated', (data) => data.map(function(value) { return value.toJSON(); }));
+
+  if (genericResult.data == null)
+    return {
+      success: genericResult.success,
+      collectionId: 0,
+      itemId: 0,
+      amount: 0,
+    };
+  else
+    return {
+      success: genericResult.success,
+      collectionId: genericResult.data[0] as number,
+      itemId: genericResult.data[1] as number,
+      recipient: normalizeAccountId(genericResult.data![2] as any),
+      amount: genericResult.data[3] as number,
+    };
+}
+
+export function getDestroyItemsResult(events: EventRecord[]): DestroyItemResult[] {
+  const results: DestroyItemResult[] = [];
+
+  const genericResult = getGenericResult<DestroyItemResult[]>(events, 'common', 'ItemDestroyed', (data) => {
+    const collectionId = parseInt(data[0].toString(), 10);
+    const itemId = parseInt(data[1].toString(), 10);
+    const owner = normalizeAccountId(data[2].toJSON() as any);
+    const amount = parseInt(data[3].toString(), 10);
+
+    const itemRes: DestroyItemResult = {
+      success: true,
+      collectionId,
+      itemId,
+      owner,
+      amount,
+    };
+
+    results.push(itemRes);
+    return results;
+  });
+
+  if (!genericResult.success) return [];
+  return results;
+}
+
+export function getTransferResult(api: ApiPromise, events: EventRecord[]): TransferResult {
+  for (const {event} of events) {
+    if (api.events.common.Transfer.is(event)) {
+      const [collection, token, sender, recipient, value] = event.data;
+      return {
+        collectionId: collection.toNumber(),
+        itemId: token.toNumber(),
+        sender: normalizeAccountId(sender.toJSON() as any),
+        recipient: normalizeAccountId(recipient.toJSON() as any),
+        value: value.toBigInt(),
+      };
+    }
+  }
+  throw new Error('no transfer event');
+}
+
+interface Nft {
+  type: 'NFT';
+}
+
+interface Fungible {
+  type: 'Fungible';
+  decimalPoints: number;
+}
+
+interface ReFungible {
+  type: 'ReFungible';
+}
+
+export type CollectionMode = Nft | Fungible | ReFungible;
+
+export type Property = {
+  key: any,
+  value: any,
+};
+
+type Permission = {
+  mutable: boolean;
+  collectionAdmin: boolean;
+  tokenOwner: boolean;
+}
+
+type PropertyPermission = {
+  key: any;
+  permission: Permission;
+}
+
+export type CreateCollectionParams = {
+  mode: CollectionMode,
+  name: string,
+  description: string,
+  tokenPrefix: string,
+  properties?: Array<Property>,
+  propPerm?: Array<PropertyPermission>
+};
+
+const defaultCreateCollectionParams: CreateCollectionParams = {
+  description: 'description',
+  mode: {type: 'NFT'},
+  name: 'name',
+  tokenPrefix: 'prefix',
+};
+
+export async function
+createCollection(
+  api: ApiPromise,
+  sender: IKeyringPair,
+  params: Partial<CreateCollectionParams> = {},
+): Promise<CreateCollectionResult> {
+  const {name, description, mode, tokenPrefix} = {...defaultCreateCollectionParams, ...params};
+
+  let modeprm = {};
+  if (mode.type === 'NFT') {
+    modeprm = {nft: null};
+  } else if (mode.type === 'Fungible') {
+    modeprm = {fungible: mode.decimalPoints};
+  } else if (mode.type === 'ReFungible') {
+    modeprm = {refungible: null};
+  }
+
+  const tx = api.tx.unique.createCollectionEx({
+    name: strToUTF16(name),
+    description: strToUTF16(description),
+    tokenPrefix: strToUTF16(tokenPrefix),
+    mode: modeprm as any,
+  });
+  const events = await executeTransaction(api, sender, tx);
+  return getCreateCollectionResult(events);
+}
+
+export async function createCollectionExpectSuccess(params: Partial<CreateCollectionParams> = {}): Promise<number> {
+  const {name, description, mode, tokenPrefix} = {...defaultCreateCollectionParams, ...params};
+
+  let collectionId = 0;
+  await usingApi(async (api, privateKeyWrapper) => {
+    // Get number of collections before the transaction
+    const collectionCountBefore = await getCreatedCollectionCount(api);
+
+    // Run the CreateCollection transaction
+    const alicePrivateKey = privateKeyWrapper('//Alice');
+
+    const result = await createCollection(api, alicePrivateKey, params);
+
+    // Get number of collections after the transaction
+    const collectionCountAfter = await getCreatedCollectionCount(api);
+
+    // Get the collection
+    const collection = await queryCollectionExpectSuccess(api, result.collectionId);
+
+    // What to expect
+    // tslint:disable-next-line:no-unused-expression
+    expect(result.success).to.be.true;
+    expect(result.collectionId).to.be.equal(collectionCountAfter);
+    // tslint:disable-next-line:no-unused-expression
+    expect(collection).to.be.not.null;
+    expect(collectionCountAfter).to.be.equal(collectionCountBefore + 1, 'Error: NFT collection NOT created.');
+    expect(collection.owner.toString()).to.be.equal(toSubstrateAddress(alicePrivateKey));
+    expect(utf16ToStr(collection.name.toJSON() as any)).to.be.equal(name);
+    expect(utf16ToStr(collection.description.toJSON() as any)).to.be.equal(description);
+    expect(hexToStr(collection.tokenPrefix.toJSON())).to.be.equal(tokenPrefix);
+
+    collectionId = result.collectionId;
+  });
+
+  return collectionId;
+}
+
+export async function createCollectionWithPropsExpectSuccess(params: Partial<CreateCollectionParams> = {}): Promise<number> {
+  const {name, description, mode, tokenPrefix} = {...defaultCreateCollectionParams, ...params};
+
+  let collectionId = 0;
+  await usingApi(async (api, privateKeyWrapper) => {
+    // Get number of collections before the transaction
+    const collectionCountBefore = await getCreatedCollectionCount(api);
+
+    // Run the CreateCollection transaction
+    const alicePrivateKey = privateKeyWrapper('//Alice');
+
+    let modeprm = {};
+    if (mode.type === 'NFT') {
+      modeprm = {nft: null};
+    } else if (mode.type === 'Fungible') {
+      modeprm = {fungible: mode.decimalPoints};
+    } else if (mode.type === 'ReFungible') {
+      modeprm = {refungible: null};
+    }
+
+    const tx = api.tx.unique.createCollectionEx({name: strToUTF16(name), description: strToUTF16(description), tokenPrefix: strToUTF16(tokenPrefix), mode: modeprm as any, properties: params.properties, tokenPropertyPermissions: params.propPerm});
+    const events = await submitTransactionAsync(alicePrivateKey, tx);
+    const result = getCreateCollectionResult(events);
+
+    // Get number of collections after the transaction
+    const collectionCountAfter = await getCreatedCollectionCount(api);
+
+    // Get the collection
+    const collection = await queryCollectionExpectSuccess(api, result.collectionId);
+
+    // What to expect
+    // tslint:disable-next-line:no-unused-expression
+    expect(result.success).to.be.true;
+    expect(result.collectionId).to.be.equal(collectionCountAfter);
+    // tslint:disable-next-line:no-unused-expression
+    expect(collection).to.be.not.null;
+    expect(collectionCountAfter).to.be.equal(collectionCountBefore + 1, 'Error: NFT collection NOT created.');
+    expect(collection.owner.toString()).to.be.equal(toSubstrateAddress(alicePrivateKey));
+    expect(utf16ToStr(collection.name.toJSON() as any)).to.be.equal(name);
+    expect(utf16ToStr(collection.description.toJSON() as any)).to.be.equal(description);
+    expect(hexToStr(collection.tokenPrefix.toJSON())).to.be.equal(tokenPrefix);
+
+
+    collectionId = result.collectionId;
+  });
+
+  return collectionId;
+}
+
+export async function createCollectionWithPropsExpectFailure(params: Partial<CreateCollectionParams> = {}) {
+  const {name, description, mode, tokenPrefix} = {...defaultCreateCollectionParams, ...params};
+
+  await usingApi(async (api, privateKeyWrapper) => {
+    // Get number of collections before the transaction
+    const collectionCountBefore = await getCreatedCollectionCount(api);
+
+    // Run the CreateCollection transaction
+    const alicePrivateKey = privateKeyWrapper('//Alice');
+
+    let modeprm = {};
+    if (mode.type === 'NFT') {
+      modeprm = {nft: null};
+    } else if (mode.type === 'Fungible') {
+      modeprm = {fungible: mode.decimalPoints};
+    } else if (mode.type === 'ReFungible') {
+      modeprm = {refungible: null};
+    }
+
+    const tx = api.tx.unique.createCollectionEx({name: strToUTF16(name), description: strToUTF16(description), tokenPrefix: strToUTF16(tokenPrefix), mode: modeprm as any, properties: params.properties, tokenPropertyPermissions: params.propPerm});
+    await expect(submitTransactionExpectFailAsync(alicePrivateKey, tx)).to.be.rejected;
+
+
+    // Get number of collections after the transaction
+    const collectionCountAfter = await getCreatedCollectionCount(api);
+
+    expect(collectionCountAfter).to.be.equal(collectionCountBefore, 'Error: Collection with incorrect data created.');
+  });
+}
+
+export async function createCollectionExpectFailure(params: Partial<CreateCollectionParams> = {}) {
+  const {name, description, mode, tokenPrefix} = {...defaultCreateCollectionParams, ...params};
+
+  let modeprm = {};
+  if (mode.type === 'NFT') {
+    modeprm = {nft: null};
+  } else if (mode.type === 'Fungible') {
+    modeprm = {fungible: mode.decimalPoints};
+  } else if (mode.type === 'ReFungible') {
+    modeprm = {refungible: null};
+  }
+
+  await usingApi(async (api, privateKeyWrapper) => {
+    // Get number of collections before the transaction
+    const collectionCountBefore = await getCreatedCollectionCount(api);
+
+    // Run the CreateCollection transaction
+    const alicePrivateKey = privateKeyWrapper('//Alice');
+    const tx = api.tx.unique.createCollectionEx({name: strToUTF16(name), description: strToUTF16(description), tokenPrefix: strToUTF16(tokenPrefix), mode: modeprm as any});
+    await expect(submitTransactionExpectFailAsync(alicePrivateKey, tx)).to.be.rejected;
+
+    // Get number of collections after the transaction
+    const collectionCountAfter = await getCreatedCollectionCount(api);
+
+    // What to expect
+    expect(collectionCountAfter).to.be.equal(collectionCountBefore, 'Error: Collection with incorrect data created.');
+  });
+}
+
+export async function findUnusedAddress(api: ApiPromise, privateKeyWrapper: (account: string) => IKeyringPair, seedAddition = ''): Promise<IKeyringPair> {
+  let bal = 0n;
+  let unused;
+  do {
+    const randomSeed = 'seed' + Math.floor(Math.random() * Math.floor(10000)) + seedAddition;
+    unused = privateKeyWrapper(`//${randomSeed}`);
+    bal = (await api.query.system.account(unused.address)).data.free.toBigInt();
+  } while (bal !== 0n);
+  return unused;
+}
+
+export async function getAllowance(api: ApiPromise, collectionId: number, owner: CrossAccountId | string | IKeyringPair, approved: CrossAccountId | string | IKeyringPair, tokenId: number) {
+  return (await api.rpc.unique.allowance(collectionId, normalizeAccountId(owner), normalizeAccountId(approved), tokenId)).toBigInt();
+}
+
+export function findUnusedAddresses(api: ApiPromise, privateKeyWrapper: (account: string) => IKeyringPair, amount: number): Promise<IKeyringPair[]> {
+  return Promise.all(new Array(amount).fill(null).map(() => findUnusedAddress(api, privateKeyWrapper, '_' + Date.now())));
+}
+
+export async function findNotExistingCollection(api: ApiPromise): Promise<number> {
+  const totalNumber = await getCreatedCollectionCount(api);
+  const newCollection: number = totalNumber + 1;
+  return newCollection;
+}
+
+function getDestroyResult(events: EventRecord[]): boolean {
+  let success = false;
+  events.forEach(({event: {method}}) => {
+    if (method == 'ExtrinsicSuccess') {
+      success = true;
+    }
+  });
+  return success;
+}
+
+export async function destroyCollectionExpectFailure(collectionId: number, senderSeed = '//Alice') {
+  await usingApi(async (api, privateKeyWrapper) => {
+    // Run the DestroyCollection transaction
+    const alicePrivateKey = privateKeyWrapper(senderSeed);
+    const tx = api.tx.unique.destroyCollection(collectionId);
+    await expect(submitTransactionExpectFailAsync(alicePrivateKey, tx)).to.be.rejected;
+  });
+}
+
+export async function destroyCollectionExpectSuccess(collectionId: number, senderSeed = '//Alice') {
+  await usingApi(async (api, privateKeyWrapper) => {
+    // Run the DestroyCollection transaction
+    const alicePrivateKey = privateKeyWrapper(senderSeed);
+    const tx = api.tx.unique.destroyCollection(collectionId);
+    const events = await submitTransactionAsync(alicePrivateKey, tx);
+    const result = getDestroyResult(events);
+    expect(result).to.be.true;
+
+    // What to expect
+    expect(await getDetailedCollectionInfo(api, collectionId)).to.be.null;
+  });
+}
+
+export async function setCollectionLimitsExpectSuccess(sender: IKeyringPair, collectionId: number, limits: any) {
+  await usingApi(async (api) => {
+    const tx = api.tx.unique.setCollectionLimits(collectionId, limits);
+    const events = await submitTransactionAsync(sender, tx);
+    const result = getGenericResult(events);
+
+    expect(result.success).to.be.true;
+  });
+}
+
+export const setCollectionPermissionsExpectSuccess = async (sender: IKeyringPair, collectionId: number, permissions: any) => {
+  await usingApi(async(api) => {
+    const tx = api.tx.unique.setCollectionPermissions(collectionId, permissions);
+    const events = await submitTransactionAsync(sender, tx);
+    const result = getGenericResult(events);
+
+    expect(result.success).to.be.true;
+  });
+};
+
+export async function setCollectionLimitsExpectFailure(sender: IKeyringPair, collectionId: number, limits: any) {
+  await usingApi(async (api) => {
+    const tx = api.tx.unique.setCollectionLimits(collectionId, limits);
+    const events = await expect(submitTransactionExpectFailAsync(sender, tx)).to.be.rejected;
+    const result = getGenericResult(events);
+
+    expect(result.success).to.be.false;
+  });
+}
+
+export async function setCollectionSponsorExpectSuccess(collectionId: number, sponsor: string, sender = '//Alice') {
+  await usingApi(async (api, privateKeyWrapper) => {
+
+    // Run the transaction
+    const senderPrivateKey = privateKeyWrapper(sender);
+    const tx = api.tx.unique.setCollectionSponsor(collectionId, sponsor);
+    const events = await submitTransactionAsync(senderPrivateKey, tx);
+    const result = getGenericResult(events);
+
+    // Get the collection
+    const collection = await queryCollectionExpectSuccess(api, collectionId);
+
+    // What to expect
+    expect(result.success).to.be.true;
+    expect(collection.sponsorship.toJSON()).to.deep.equal({
+      unconfirmed: sponsor,
+    });
+  });
+}
+
+export async function removeCollectionSponsorExpectSuccess(collectionId: number, sender = '//Alice') {
+  await usingApi(async (api, privateKeyWrapper) => {
+
+    // Run the transaction
+    const alicePrivateKey = privateKeyWrapper(sender);
+    const tx = api.tx.unique.removeCollectionSponsor(collectionId);
+    const events = await submitTransactionAsync(alicePrivateKey, tx);
+    const result = getGenericResult(events);
+
+    // Get the collection
+    const collection = await queryCollectionExpectSuccess(api, collectionId);
+
+    // What to expect
+    expect(result.success).to.be.true;
+    expect(collection.sponsorship.toJSON()).to.be.deep.equal({disabled: null});
+  });
+}
+
+export async function removeCollectionSponsorExpectFailure(collectionId: number, senderSeed = '//Alice') {
+  await usingApi(async (api, privateKeyWrapper) => {
+
+    // Run the transaction
+    const alicePrivateKey = privateKeyWrapper(senderSeed);
+    const tx = api.tx.unique.removeCollectionSponsor(collectionId);
+    await expect(submitTransactionExpectFailAsync(alicePrivateKey, tx)).to.be.rejected;
+  });
+}
+
+export async function setCollectionSponsorExpectFailure(collectionId: number, sponsor: string, senderSeed = '//Alice') {
+  await usingApi(async (api, privateKeyWrapper) => {
+
+    // Run the transaction
+    const alicePrivateKey = privateKeyWrapper(senderSeed);
+    const tx = api.tx.unique.setCollectionSponsor(collectionId, sponsor);
+    await expect(submitTransactionExpectFailAsync(alicePrivateKey, tx)).to.be.rejected;
+  });
+}
+
+export async function confirmSponsorshipExpectSuccess(collectionId: number, senderSeed = '//Alice') {
+  await usingApi(async (api, privateKeyWrapper) => {
+
+    // Run the transaction
+    const sender = privateKeyWrapper(senderSeed);
+    await confirmSponsorshipByKeyExpectSuccess(collectionId, sender);
+  });
+}
+
+export async function confirmSponsorshipByKeyExpectSuccess(collectionId: number, sender: IKeyringPair) {
+  await usingApi(async (api, privateKeyWrapper) => {
+
+    // Run the transaction
+    const tx = api.tx.unique.confirmSponsorship(collectionId);
+    const events = await submitTransactionAsync(sender, tx);
+    const result = getGenericResult(events);
+
+    // Get the collection
+    const collection = await queryCollectionExpectSuccess(api, collectionId);
+
+    // What to expect
+    expect(result.success).to.be.true;
+    expect(collection.sponsorship.toJSON()).to.be.deep.equal({
+      confirmed: sender.address,
+    });
+  });
+}
+
+
+export async function confirmSponsorshipExpectFailure(collectionId: number, senderSeed = '//Alice') {
+  await usingApi(async (api, privateKeyWrapper) => {
+
+    // Run the transaction
+    const sender = privateKeyWrapper(senderSeed);
+    const tx = api.tx.unique.confirmSponsorship(collectionId);
+    await expect(submitTransactionExpectFailAsync(sender, tx)).to.be.rejected;
+  });
+}
+
+export async function enableContractSponsoringExpectSuccess(sender: IKeyringPair, contractAddress: AccountId | string, enable: boolean) {
+  await usingApi(async (api) => {
+    const tx = api.tx.unique.enableContractSponsoring(contractAddress, enable);
+    const events = await submitTransactionAsync(sender, tx);
+    const result = getGenericResult(events);
+
+    expect(result.success).to.be.true;
+  });
+}
+
+export async function enableContractSponsoringExpectFailure(sender: IKeyringPair, contractAddress: AccountId | string, enable: boolean) {
+  await usingApi(async (api) => {
+    const tx = api.tx.unique.enableContractSponsoring(contractAddress, enable);
+    const events = await expect(submitTransactionExpectFailAsync(sender, tx)).to.be.rejected;
+    const result = getGenericResult(events);
+
+    expect(result.success).to.be.false;
+  });
+}
+
+export async function setTransferFlagExpectSuccess(sender: IKeyringPair, collectionId: number, enabled: boolean) {
+
+  await usingApi(async (api) => {
+
+    const tx = api.tx.unique.setTransfersEnabledFlag(collectionId, enabled);
+    const events = await submitTransactionAsync(sender, tx);
+    const result = getGenericResult(events);
+
+    expect(result.success).to.be.true;
+  });
+}
+
+export async function setTransferFlagExpectFailure(sender: IKeyringPair, collectionId: number, enabled: boolean) {
+
+  await usingApi(async (api) => {
+
+    const tx = api.tx.unique.setTransfersEnabledFlag(collectionId, enabled);
+    const events = await expect(submitTransactionExpectFailAsync(sender, tx)).to.be.rejected;
+    const result = getGenericResult(events);
+
+    expect(result.success).to.be.false;
+  });
+}
+
+export async function setContractSponsoringRateLimitExpectSuccess(sender: IKeyringPair, contractAddress: AccountId | string, rateLimit: number) {
+  await usingApi(async (api) => {
+    const tx = api.tx.unique.setContractSponsoringRateLimit(contractAddress, rateLimit);
+    const events = await submitTransactionAsync(sender, tx);
+    const result = getGenericResult(events);
+
+    expect(result.success).to.be.true;
+  });
+}
+
+export async function setContractSponsoringRateLimitExpectFailure(sender: IKeyringPair, contractAddress: AccountId | string, rateLimit: number) {
+  await usingApi(async (api) => {
+    const tx = api.tx.unique.setContractSponsoringRateLimit(contractAddress, rateLimit);
+    const events = await expect(submitTransactionExpectFailAsync(sender, tx)).to.be.rejected;
+    const result = getGenericResult(events);
+
+    expect(result.success).to.be.false;
+  });
+}
+
+export async function getNextSponsored(
+  api: ApiPromise,
+  collectionId: number,
+  account: string | CrossAccountId,
+  tokenId: number,
+): Promise<number> {
+  return Number((await api.rpc.unique.nextSponsored(collectionId, account, tokenId)).unwrapOr(-1));
+}
+
+export async function toggleContractAllowlistExpectSuccess(sender: IKeyringPair, contractAddress: AccountId | string, value = true) {
+  await usingApi(async (api) => {
+    const tx = api.tx.unique.toggleContractAllowList(contractAddress, value);
+    const events = await submitTransactionAsync(sender, tx);
+    const result = getGenericResult(events);
+
+    expect(result.success).to.be.true;
+  });
+}
+
+export async function isAllowlistedInContract(contractAddress: AccountId | string, user: string) {
+  let allowlisted = false;
+  await usingApi(async (api) => {
+    allowlisted = (await api.query.unique.contractAllowList(contractAddress, user)).toJSON() as boolean;
+  });
+  return allowlisted;
+}
+
+export async function addToContractAllowListExpectSuccess(sender: IKeyringPair, contractAddress: AccountId | string, user: AccountId | string) {
+  await usingApi(async (api) => {
+    const tx = api.tx.unique.addToContractAllowList(contractAddress.toString(), user.toString());
+    const events = await submitTransactionAsync(sender, tx);
+    const result = getGenericResult(events);
+
+    expect(result.success).to.be.true;
+  });
+}
+
+export async function removeFromContractAllowListExpectSuccess(sender: IKeyringPair, contractAddress: AccountId | string, user: AccountId | string) {
+  await usingApi(async (api) => {
+    const tx = api.tx.unique.removeFromContractAllowList(contractAddress.toString(), user.toString());
+    const events = await submitTransactionAsync(sender, tx);
+    const result = getGenericResult(events);
+
+    expect(result.success).to.be.true;
+  });
+}
+
+export async function removeFromContractAllowListExpectFailure(sender: IKeyringPair, contractAddress: AccountId | string, user: AccountId | string) {
+  await usingApi(async (api) => {
+    const tx = api.tx.unique.removeFromContractAllowList(contractAddress.toString(), user.toString());
+    const events = await expect(submitTransactionExpectFailAsync(sender, tx)).to.be.rejected;
+    const result = getGenericResult(events);
+
+    expect(result.success).to.be.false;
+  });
+}
+
+export interface CreateFungibleData {
+  readonly Value: bigint;
+}
+
+export interface CreateReFungibleData { }
+export interface CreateNftData { }
+
+export type CreateItemData = {
+  NFT: CreateNftData;
+} | {
+  Fungible: CreateFungibleData;
+} | {
+  ReFungible: CreateReFungibleData;
+};
+
+export async function burnItem(api: ApiPromise, sender: IKeyringPair, collectionId: number, tokenId: number, value: number | bigint) : Promise<boolean> {
+  const tx = api.tx.unique.burnItem(collectionId, tokenId, value);
+  const events = await submitTransactionAsync(sender, tx);
+  return getGenericResult(events).success;
+}
+
+export async function burnItemExpectSuccess(sender: IKeyringPair, collectionId: number, tokenId: number, value: number | bigint = 1) {
+  await usingApi(async (api) => {
+    const balanceBefore = await getBalance(api, collectionId, normalizeAccountId(sender), tokenId);
+    // if burning token by admin - use adminButnItemExpectSuccess
+    expect(balanceBefore >= BigInt(value)).to.be.true;
+
+    expect(await burnItem(api, sender, collectionId, tokenId, value)).to.be.true;
+
+    const balanceAfter = await getBalance(api, collectionId, normalizeAccountId(sender), tokenId);
+    expect(balanceAfter + BigInt(value)).to.be.equal(balanceBefore);
+  });
+}
+
+export async function burnItemExpectFailure(sender: IKeyringPair, collectionId: number, tokenId: number, value: number | bigint = 1) {
+  await usingApi(async (api) => {
+    const tx = api.tx.unique.burnItem(collectionId, tokenId, value);
+
+    const events = await expect(submitTransactionExpectFailAsync(sender, tx)).to.be.rejected;
+    const result = getCreateCollectionResult(events);
+    // tslint:disable-next-line:no-unused-expression
+    expect(result.success).to.be.false;
+  });
+}
+
+export async function burnFromExpectSuccess(sender: IKeyringPair, from: IKeyringPair | CrossAccountId, collectionId: number, tokenId: number, value: number | bigint = 1) {
+  await usingApi(async (api) => {
+    const tx = api.tx.unique.burnFrom(collectionId, normalizeAccountId(from), tokenId, value);
+    const events = await submitTransactionAsync(sender, tx);
+    return getGenericResult(events).success;
+  });
+}
+
+export async function
+approve(
+  api: ApiPromise,
+  collectionId: number,
+  tokenId: number, owner: IKeyringPair, approved: CrossAccountId | string | IKeyringPair, amount: number | bigint,
+) {
+  const approveUniqueTx = api.tx.unique.approve(normalizeAccountId(approved), collectionId, tokenId, amount);
+  const events = await submitTransactionAsync(owner, approveUniqueTx);
+  return getGenericResult(events).success;
+}
+
+export async function
+approveExpectSuccess(
+  collectionId: number,
+  tokenId: number, owner: IKeyringPair, approved: CrossAccountId | string, amount: number | bigint = 1,
+) {
+  await usingApi(async (api: ApiPromise) => {
+    const result = await approve(api, collectionId, tokenId, owner, approved, amount);
+    expect(result).to.be.true;
+
+    expect(await getAllowance(api, collectionId, owner, approved, tokenId)).to.be.equal(BigInt(amount));
+  });
+}
+
+export async function adminApproveFromExpectSuccess(
+  collectionId: number,
+  tokenId: number, admin: IKeyringPair, owner: CrossAccountId | string, approved: CrossAccountId | string, amount: number | bigint = 1,
+) {
+  await usingApi(async (api: ApiPromise) => {
+    const approveUniqueTx = api.tx.unique.approve(normalizeAccountId(approved), collectionId, tokenId, amount);
+    const events = await submitTransactionAsync(admin, approveUniqueTx);
+    const result = getGenericResult(events);
+    expect(result.success).to.be.true;
+
+    expect(await getAllowance(api, collectionId, owner, approved, tokenId)).to.be.equal(BigInt(amount));
+  });
+}
+
+export async function
+transferFrom(
+  api: ApiPromise,
+  collectionId: number,
+  tokenId: number,
+  accountApproved: IKeyringPair,
+  accountFrom: IKeyringPair | CrossAccountId,
+  accountTo: IKeyringPair | CrossAccountId,
+  value: number | bigint,
+) {
+  const from = normalizeAccountId(accountFrom);
+  const to = normalizeAccountId(accountTo);
+  const transferFromTx = api.tx.unique.transferFrom(from, to, collectionId, tokenId, value);
+  const events = await submitTransactionAsync(accountApproved, transferFromTx);
+  return getGenericResult(events).success;
+}
+
+export async function
+transferFromExpectSuccess(
+  collectionId: number,
+  tokenId: number,
+  accountApproved: IKeyringPair,
+  accountFrom: IKeyringPair | CrossAccountId,
+  accountTo: IKeyringPair | CrossAccountId,
+  value: number | bigint = 1,
+  type = 'NFT',
+) {
+  await usingApi(async (api: ApiPromise) => {
+    const from = normalizeAccountId(accountFrom);
+    const to = normalizeAccountId(accountTo);
+    let balanceBefore = 0n;
+    if (type === 'Fungible' || type === 'ReFungible') {
+      balanceBefore = await getBalance(api, collectionId, to, tokenId);
+    }
+    expect(await transferFrom(api, collectionId, tokenId, accountApproved, accountFrom, accountTo, value)).to.be.true;
+    if (type === 'NFT') {
+      expect(await getTokenOwner(api, collectionId, tokenId)).to.be.deep.equal(to);
+    }
+    if (type === 'Fungible') {
+      const balanceAfter = await getBalance(api, collectionId, to, tokenId);
+      if (JSON.stringify(to) !== JSON.stringify(from)) {
+        expect(balanceAfter - balanceBefore).to.be.equal(BigInt(value));
+      } else {
+        expect(balanceAfter).to.be.equal(balanceBefore);
+      }
+    }
+    if (type === 'ReFungible') {
+      expect(await getBalance(api, collectionId, to, tokenId)).to.be.equal(balanceBefore + BigInt(value));
+    }
+  });
+}
+
+export async function
+transferFromExpectFail(
+  collectionId: number,
+  tokenId: number,
+  accountApproved: IKeyringPair,
+  accountFrom: IKeyringPair,
+  accountTo: IKeyringPair,
+  value: number | bigint = 1,
+) {
+  await usingApi(async (api: ApiPromise) => {
+    const transferFromTx = api.tx.unique.transferFrom(normalizeAccountId(accountFrom.address), normalizeAccountId(accountTo.address), collectionId, tokenId, value);
+    const events = await expect(submitTransactionExpectFailAsync(accountApproved, transferFromTx)).to.be.rejected;
+    const result = getCreateCollectionResult(events);
+    // tslint:disable-next-line:no-unused-expression
+    expect(result.success).to.be.false;
+  });
+}
+
+/* eslint no-async-promise-executor: "off" */
+export async function getBlockNumber(api: ApiPromise): Promise<number> {
+  return new Promise<number>(async (resolve) => {
+    const unsubscribe = await api.rpc.chain.subscribeNewHeads((head) => {
+      unsubscribe();
+      resolve(head.number.toNumber());
+    });
+  });
+}
+
+export async function addCollectionAdminExpectSuccess(sender: IKeyringPair, collectionId: number, address: string | CrossAccountId) {
+  await usingApi(async (api) => {
+    const changeAdminTx = api.tx.unique.addCollectionAdmin(collectionId, normalizeAccountId(address));
+    const events = await submitTransactionAsync(sender, changeAdminTx);
+    const result = getCreateCollectionResult(events);
+    expect(result.success).to.be.true;
+  });
+}
+
+export async function adminApproveFromExpectFail(
+  collectionId: number,
+  tokenId: number, admin: IKeyringPair, owner: CrossAccountId | string, approved: CrossAccountId | string, amount: number | bigint = 1,
+) {
+  await usingApi(async (api: ApiPromise) => {
+    const approveUniqueTx = api.tx.unique.approve(normalizeAccountId(approved), collectionId, tokenId, amount);
+    const events = await expect(submitTransactionAsync(admin, approveUniqueTx)).to.be.rejected;
+    const result = getGenericResult(events);
+    expect(result.success).to.be.false;
+  });
+}
+
+export async function
+getFreeBalance(account: IKeyringPair): Promise<bigint> {
+  let balance = 0n;
+  await usingApi(async (api) => {
+    balance = BigInt((await api.query.system.account(account.address)).data.free.toString());
+  });
+
+  return balance;
+}
+
+export async function paraSiblingSovereignAccount(paraid: number): Promise<string> {
+  return usingApi(async api => {
+    // We are getting a *sibling* parachain sovereign account,
+    // so we need a sibling prefix: encoded(b"sibl") == 0x7369626c
+    const siblingPrefix = '0x7369626c';
+
+    const encodedParaId = api.createType('u32', paraid).toHex(true).substring(2);
+    const suffix = '000000000000000000000000000000000000000000000000';
+
+    return siblingPrefix + encodedParaId + suffix;
+  });
+}
+
+export async function transferBalanceTo(api: ApiPromise, source: IKeyringPair, target: string, amount = 1000n * UNIQUE) {
+  const tx = api.tx.balances.transfer(target, amount);
+  const events = await submitTransactionAsync(source, tx);
+  const result = getGenericResult(events);
+  expect(result.success).to.be.true;
+}
+
+export async function
+scheduleExpectSuccess(
+  operationTx: any,
+  sender: IKeyringPair,
+  blockSchedule: number,
+  scheduledId: string,
+  period = 1,
+  repetitions = 1,
+) {
+  await usingApi(async (api: ApiPromise) => {
+    const blockNumber: number | undefined = await getBlockNumber(api);
+    const expectedBlockNumber = blockNumber + blockSchedule;
+
+    expect(blockNumber).to.be.greaterThan(0);
+    const scheduleTx = api.tx.scheduler.scheduleNamed( // schedule
+      scheduledId,
+      expectedBlockNumber,
+      repetitions > 1 ? [period, repetitions] : null,
+      0,
+      {Value: operationTx as any},
+    );
+
+    const events = await submitTransactionAsync(sender, scheduleTx);
+    expect(getGenericResult(events).success).to.be.true;
+  });
+}
+
+export async function
+scheduleExpectFailure(
+  operationTx: any,
+  sender: IKeyringPair,
+  blockSchedule: number,
+  scheduledId: string,
+  period = 1,
+  repetitions = 1,
+) {
+  await usingApi(async (api: ApiPromise) => {
+    const blockNumber: number | undefined = await getBlockNumber(api);
+    const expectedBlockNumber = blockNumber + blockSchedule;
+
+    expect(blockNumber).to.be.greaterThan(0);
+    const scheduleTx = api.tx.scheduler.scheduleNamed( // schedule
+      scheduledId,
+      expectedBlockNumber,
+      repetitions <= 1 ? null : [period, repetitions],
+      0,
+      {Value: operationTx as any},
+    );
+
+    //const events =
+    await expect(submitTransactionExpectFailAsync(sender, scheduleTx)).to.be.rejected;
+    //expect(getGenericResult(events).success).to.be.false;
+  });
+}
+
+export async function
+scheduleTransferAndWaitExpectSuccess(
+  collectionId: number,
+  tokenId: number,
+  sender: IKeyringPair,
+  recipient: IKeyringPair,
+  value: number | bigint = 1,
+  blockSchedule: number,
+  scheduledId: string,
+) {
+  await usingApi(async (api: ApiPromise) => {
+    await scheduleTransferExpectSuccess(collectionId, tokenId, sender, recipient, value, blockSchedule, scheduledId);
+
+    const recipientBalanceBefore = (await api.query.system.account(recipient.address)).data.free.toBigInt();
+
+    // sleep for n + 1 blocks
+    await waitNewBlocks(blockSchedule + 1);
+
+    const recipientBalanceAfter = (await api.query.system.account(recipient.address)).data.free.toBigInt();
+
+    expect(await getTokenOwner(api, collectionId, tokenId)).to.be.deep.equal(normalizeAccountId(recipient.address));
+    expect(recipientBalanceAfter).to.be.equal(recipientBalanceBefore);
+  });
+}
+
+export async function
+scheduleTransferExpectSuccess(
+  collectionId: number,
+  tokenId: number,
+  sender: IKeyringPair,
+  recipient: IKeyringPair,
+  value: number | bigint = 1,
+  blockSchedule: number,
+  scheduledId: string,
+) {
+  await usingApi(async (api: ApiPromise) => {
+    const transferTx = api.tx.unique.transfer(normalizeAccountId(recipient.address), collectionId, tokenId, value);
+
+    await scheduleExpectSuccess(transferTx, sender, blockSchedule, scheduledId);
+
+    expect(await getTokenOwner(api, collectionId, tokenId)).to.be.deep.equal(normalizeAccountId(sender.address));
+  });
+}
+
+export async function
+scheduleTransferFundsPeriodicExpectSuccess(
+  amount: bigint,
+  sender: IKeyringPair,
+  recipient: IKeyringPair,
+  blockSchedule: number,
+  scheduledId: string,
+  period: number,
+  repetitions: number,
+) {
+  await usingApi(async (api: ApiPromise) => {
+    const transferTx = api.tx.balances.transfer(recipient.address, amount);
+
+    const balanceBefore = await getFreeBalance(recipient);
+
+    await scheduleExpectSuccess(transferTx, sender, blockSchedule, scheduledId, period, repetitions);
+
+    expect(await getFreeBalance(recipient)).to.be.equal(balanceBefore);
+  });
+}
+
+export async function
+transfer(
+  api: ApiPromise,
+  collectionId: number,
+  tokenId: number,
+  sender: IKeyringPair,
+  recipient: IKeyringPair | CrossAccountId,
+  value: number | bigint,
+) : Promise<boolean> {
+  const transferTx = api.tx.unique.transfer(normalizeAccountId(recipient), collectionId, tokenId, value);
+  const events = await executeTransaction(api, sender, transferTx);
+  return getGenericResult(events).success;
+}
+
+export async function
+transferExpectSuccess(
+  collectionId: number,
+  tokenId: number,
+  sender: IKeyringPair,
+  recipient: IKeyringPair | CrossAccountId,
+  value: number | bigint = 1,
+  type = 'NFT',
+) {
+  await usingApi(async (api: ApiPromise) => {
+    const from = normalizeAccountId(sender);
+    const to = normalizeAccountId(recipient);
+
+    let balanceBefore = 0n;
+    if (type === 'Fungible' || type === 'ReFungible') {
+      balanceBefore = await getBalance(api, collectionId, to, tokenId);
+    }
+
+    const transferTx = api.tx.unique.transfer(normalizeAccountId(recipient), collectionId, tokenId, value);
+    const events = await executeTransaction(api, sender, transferTx);
+    const result = getTransferResult(api, events);
+
+    expect(result.collectionId).to.be.equal(collectionId);
+    expect(result.itemId).to.be.equal(tokenId);
+    expect(result.sender).to.be.deep.equal(normalizeAccountId(sender.address));
+    expect(result.recipient).to.be.deep.equal(to);
+    expect(result.value).to.be.equal(BigInt(value));
+
+    if (type === 'NFT') {
+      expect(await getTokenOwner(api, collectionId, tokenId)).to.be.deep.equal(to);
+    }
+    if (type === 'Fungible' || type === 'ReFungible') {
+      const balanceAfter = await getBalance(api, collectionId, to, tokenId);
+      if (JSON.stringify(to) !== JSON.stringify(from)) {
+        expect(balanceAfter - balanceBefore).to.be.equal(BigInt(value));
+      } else {
+        expect(balanceAfter).to.be.equal(balanceBefore);
+      }
+    }
+  });
+}
+
+export async function
+transferExpectFailure(
+  collectionId: number,
+  tokenId: number,
+  sender: IKeyringPair,
+  recipient: IKeyringPair | CrossAccountId,
+  value: number | bigint = 1,
+) {
+  await usingApi(async (api: ApiPromise) => {
+    const transferTx = api.tx.unique.transfer(normalizeAccountId(recipient), collectionId, tokenId, value);
+    const events = await expect(submitTransactionExpectFailAsync(sender, transferTx)).to.be.rejected;
+    const result = getGenericResult(events);
+    // if (events && Array.isArray(events)) {
+    //   const result = getCreateCollectionResult(events);
+    // tslint:disable-next-line:no-unused-expression
+    expect(result.success).to.be.false;
+    //}
+  });
+}
+
+export async function
+approveExpectFail(
+  collectionId: number,
+  tokenId: number, owner: IKeyringPair, approved: IKeyringPair, amount: number | bigint = 1,
+) {
+  await usingApi(async (api: ApiPromise) => {
+    const approveUniqueTx = api.tx.unique.approve(normalizeAccountId(approved.address), collectionId, tokenId, amount);
+    const events = await expect(submitTransactionExpectFailAsync(owner, approveUniqueTx)).to.be.rejected;
+    const result = getCreateCollectionResult(events);
+    // tslint:disable-next-line:no-unused-expression
+    expect(result.success).to.be.false;
+  });
+}
+
+export async function getBalance(
+  api: ApiPromise,
+  collectionId: number,
+  owner: string | CrossAccountId | IKeyringPair,
+  token: number,
+): Promise<bigint> {
+  return (await api.rpc.unique.balance(collectionId, normalizeAccountId(owner), token)).toBigInt();
+}
+export async function getTokenOwner(
+  api: ApiPromise,
+  collectionId: number,
+  token: number,
+): Promise<CrossAccountId> {
+  const owner = (await api.rpc.unique.tokenOwner(collectionId, token)).toJSON() as any;
+  if (owner == null) throw new Error('owner == null');
+  return normalizeAccountId(owner);
+}
+export async function getTopmostTokenOwner(
+  api: ApiPromise,
+  collectionId: number,
+  token: number,
+): Promise<CrossAccountId> {
+  const owner = (await api.rpc.unique.topmostTokenOwner(collectionId, token)).toJSON() as any;
+  if (owner == null) throw new Error('owner == null');
+  return normalizeAccountId(owner);
+}
+export async function getTokenChildren(
+  api: ApiPromise,
+  collectionId: number,
+  tokenId: number,
+): Promise<UpDataStructsTokenChild[]> {
+  return (await api.rpc.unique.tokenChildren(collectionId, tokenId)).toJSON() as any;
+}
+export async function isTokenExists(
+  api: ApiPromise,
+  collectionId: number,
+  token: number,
+): Promise<boolean> {
+  return (await api.rpc.unique.tokenExists(collectionId, token)).toJSON();
+}
+export async function getLastTokenId(
+  api: ApiPromise,
+  collectionId: number,
+): Promise<number> {
+  return (await api.rpc.unique.lastTokenId(collectionId)).toJSON();
+}
+export async function getAdminList(
+  api: ApiPromise,
+  collectionId: number,
+): Promise<string[]> {
+  return (await api.rpc.unique.adminlist(collectionId)).toHuman() as any;
+}
+export async function getTokenProperties(
+  api: ApiPromise,
+  collectionId: number,
+  tokenId: number,
+  propertyKeys: string[],
+): Promise<UpDataStructsProperty[]> {
+  return (await api.rpc.unique.tokenProperties(collectionId, tokenId, propertyKeys)).toHuman() as any;
+}
+
+export async function createFungibleItemExpectSuccess(
+  sender: IKeyringPair,
+  collectionId: number,
+  data: CreateFungibleData,
+  owner: CrossAccountId | string = sender.address,
+) {
+  return await usingApi(async (api) => {
+    const tx = api.tx.unique.createItem(collectionId, normalizeAccountId(owner), {Fungible: data});
+
+    const events = await submitTransactionAsync(sender, tx);
+    const result = getCreateItemResult(events);
+
+    expect(result.success).to.be.true;
+    return result.itemId;
+  });
+}
+
+export async function createMultipleItemsExpectSuccess(sender: IKeyringPair, collectionId: number, itemsData: any, owner: CrossAccountId | string = sender.address) {
+  await usingApi(async (api) => {
+    const to = normalizeAccountId(owner);
+    const tx = api.tx.unique.createMultipleItems(collectionId, to, itemsData);
+
+    const events = await submitTransactionAsync(sender, tx);
+    expect(getGenericResult(events).success).to.be.true;
+  });
+}
+
+export async function createMultipleItemsWithPropsExpectSuccess(sender: IKeyringPair, collectionId: number, itemsData: any, owner: CrossAccountId | string = sender.address) {
+  await usingApi(async (api) => {
+    const to = normalizeAccountId(owner);
+    const tx = api.tx.unique.createMultipleItems(collectionId, to, itemsData);
+
+    const events = await submitTransactionAsync(sender, tx);
+    const result = getCreateItemsResult(events);
+
+    for (const res of result) {
+      expect(await api.rpc.unique.tokenProperties(collectionId, res.itemId)).not.to.be.empty;
+    }
+  });
+}
+
+export async function createMultipleItemsExWithPropsExpectSuccess(sender: IKeyringPair, collectionId: number, itemsData: any) {
+  await usingApi(async (api) => {
+    const tx = api.tx.unique.createMultipleItemsEx(collectionId, itemsData);
+
+    const events = await submitTransactionAsync(sender, tx);
+    const result = getCreateItemsResult(events);
+
+    for (const res of result) {
+      expect(await api.rpc.unique.tokenProperties(collectionId, res.itemId)).not.to.be.empty;
+    }
+  });
+}
+
+export async function createItemWithPropsExpectSuccess(sender: IKeyringPair, collectionId: number, createMode: string, props:  Array<Property>, owner: CrossAccountId | string = sender.address) {
+  let newItemId = 0;
+  await usingApi(async (api) => {
+    const to = normalizeAccountId(owner);
+    const itemCountBefore = await getLastTokenId(api, collectionId);
+    const itemBalanceBefore = await getBalance(api, collectionId, to, newItemId);
+
+    let tx;
+    if (createMode === 'Fungible') {
+      const createData = {fungible: {value: 10}};
+      tx = api.tx.unique.createItem(collectionId, to, createData as any);
+    } else if (createMode === 'ReFungible') {
+      const createData = {refungible: {pieces: 100}};
+      tx = api.tx.unique.createItem(collectionId, to, createData as any);
+    } else {
+      const data = api.createType('UpDataStructsCreateItemData', {NFT: {properties: props}});
+      tx = api.tx.unique.createItem(collectionId, to, data as UpDataStructsCreateItemData);
+    }
+
+    const events = await submitTransactionAsync(sender, tx);
+    const result = getCreateItemResult(events);
+
+    const itemCountAfter = await getLastTokenId(api, collectionId);
+    const itemBalanceAfter = await getBalance(api, collectionId, to, newItemId);
+
+    if (createMode === 'NFT') {
+      expect(await api.rpc.unique.tokenProperties(collectionId, result.itemId)).not.to.be.empty;
+    }
+
+    // What to expect
+    // tslint:disable-next-line:no-unused-expression
+    expect(result.success).to.be.true;
+    if (createMode === 'Fungible') {
+      expect(itemBalanceAfter - itemBalanceBefore).to.be.equal(10n);
+    } else {
+      expect(itemCountAfter).to.be.equal(itemCountBefore + 1);
+    }
+    expect(collectionId).to.be.equal(result.collectionId);
+    expect(itemCountAfter.toString()).to.be.equal(result.itemId.toString());
+    expect(to).to.be.deep.equal(result.recipient);
+    newItemId = result.itemId;
+  });
+  return newItemId;
+}
+
+export async function createItemWithPropsExpectFailure(sender: IKeyringPair, collectionId: number, createMode: string, props: Array<Property>, owner: CrossAccountId | string = sender.address) {
+  await usingApi(async (api) => {
+
+    let tx;
+    if (createMode === 'NFT') {
+      const data = api.createType('UpDataStructsCreateItemData', {NFT: {properties: props}}) as UpDataStructsCreateItemData;
+      tx = api.tx.unique.createItem(collectionId, normalizeAccountId(owner), data);
+    } else {
+      tx = api.tx.unique.createItem(collectionId, normalizeAccountId(owner), createMode);
+    }
+
+
+    const events = await expect(submitTransactionExpectFailAsync(sender, tx)).to.be.rejected;
+    if(events.message && events.message.toString().indexOf('1002: Verification Error') > -1) return;
+    const result = getCreateItemResult(events);
+
+    expect(result.success).to.be.false;
+  });
+}
+
+export async function createItemExpectSuccess(sender: IKeyringPair, collectionId: number, createMode: string, owner: CrossAccountId | string = sender.address) {
+  let newItemId = 0;
+  await usingApi(async (api) => {
+    const to = normalizeAccountId(owner);
+    const itemCountBefore = await getLastTokenId(api, collectionId);
+    const itemBalanceBefore = await getBalance(api, collectionId, to, newItemId);
+
+    let tx;
+    if (createMode === 'Fungible') {
+      const createData = {fungible: {value: 10}};
+      tx = api.tx.unique.createItem(collectionId, to, createData as any);
+    } else if (createMode === 'ReFungible') {
+      const createData = {refungible: {pieces: 100}};
+      tx = api.tx.unique.createItem(collectionId, to, createData as any);
+    } else {
+      const createData = {nft: {}};
+      tx = api.tx.unique.createItem(collectionId, to, createData as any);
+    }
+
+    const events = await executeTransaction(api, sender, tx);
+    const result = getCreateItemResult(events);
+
+    const itemCountAfter = await getLastTokenId(api, collectionId);
+    const itemBalanceAfter = await getBalance(api, collectionId, to, newItemId);
+
+    // What to expect
+    // tslint:disable-next-line:no-unused-expression
+    expect(result.success).to.be.true;
+    if (createMode === 'Fungible') {
+      expect(itemBalanceAfter - itemBalanceBefore).to.be.equal(10n);
+    } else {
+      expect(itemCountAfter).to.be.equal(itemCountBefore + 1);
+    }
+    expect(collectionId).to.be.equal(result.collectionId);
+    expect(itemCountAfter.toString()).to.be.equal(result.itemId.toString());
+    expect(to).to.be.deep.equal(result.recipient);
+    newItemId = result.itemId;
+  });
+  return newItemId;
+}
+
+export async function createRefungibleToken(api: ApiPromise, sender: IKeyringPair, collectionId: number, amount: bigint, owner: CrossAccountId | IKeyringPair | string = sender.address) : Promise<CreateItemResult> {
+  const createData = {refungible: {pieces: amount}};
+  const tx = api.tx.unique.createItem(collectionId, normalizeAccountId(owner), createData as any);
+
+  const events = await submitTransactionAsync(sender, tx);
+  return  getCreateItemResult(events);
+}
+
+export async function createItemExpectFailure(sender: IKeyringPair, collectionId: number, createMode: string, owner: CrossAccountId | string = sender.address) {
+  await usingApi(async (api) => {
+    const tx = api.tx.unique.createItem(collectionId, normalizeAccountId(owner), createMode);
+
+    const events = await expect(submitTransactionExpectFailAsync(sender, tx)).to.be.rejected;
+    const result = getCreateItemResult(events);
+
+    expect(result.success).to.be.false;
+  });
+}
+
+export async function setPublicAccessModeExpectSuccess(
+  sender: IKeyringPair, collectionId: number,
+  accessMode: 'Normal' | 'AllowList',
+) {
+  await usingApi(async (api) => {
+
+    // Run the transaction
+    const tx = api.tx.unique.setCollectionPermissions(collectionId, {access: accessMode});
+    const events = await submitTransactionAsync(sender, tx);
+    const result = getGenericResult(events);
+
+    // Get the collection
+    const collection = await queryCollectionExpectSuccess(api, collectionId);
+
+    // What to expect
+    // tslint:disable-next-line:no-unused-expression
+    expect(result.success).to.be.true;
+    expect(collection.permissions.access.toHuman()).to.be.equal(accessMode);
+  });
+}
+
+export async function setPublicAccessModeExpectFail(
+  sender: IKeyringPair, collectionId: number,
+  accessMode: 'Normal' | 'AllowList',
+) {
+  await usingApi(async (api) => {
+
+    // Run the transaction
+    const tx = api.tx.unique.setCollectionPermissions(collectionId, {access: accessMode});
+    const events = await expect(submitTransactionExpectFailAsync(sender, tx)).to.be.rejected;
+    const result = getGenericResult(events);
+
+    // What to expect
+    // tslint:disable-next-line:no-unused-expression
+    expect(result.success).to.be.false;
+  });
+}
+
+export async function enableAllowListExpectSuccess(sender: IKeyringPair, collectionId: number) {
+  await setPublicAccessModeExpectSuccess(sender, collectionId, 'AllowList');
+}
+
+export async function enableAllowListExpectFail(sender: IKeyringPair, collectionId: number) {
+  await setPublicAccessModeExpectFail(sender, collectionId, 'AllowList');
+}
+
+export async function disableAllowListExpectSuccess(sender: IKeyringPair, collectionId: number) {
+  await setPublicAccessModeExpectSuccess(sender, collectionId, 'Normal');
+}
+
+export async function setMintPermissionExpectSuccess(sender: IKeyringPair, collectionId: number, enabled: boolean) {
+  await usingApi(async (api) => {
+
+    // Run the transaction
+    const tx = api.tx.unique.setCollectionPermissions(collectionId, {mintMode: enabled});
+    const events = await submitTransactionAsync(sender, tx);
+    const result = getGenericResult(events);
+    expect(result.success).to.be.true;
+
+    // Get the collection
+    const collection = await queryCollectionExpectSuccess(api, collectionId);
+
+    expect(collection.permissions.mintMode.toHuman()).to.be.equal(enabled);
+  });
+}
+
+export async function enablePublicMintingExpectSuccess(sender: IKeyringPair, collectionId: number) {
+  await setMintPermissionExpectSuccess(sender, collectionId, true);
+}
+
+export async function setMintPermissionExpectFailure(sender: IKeyringPair, collectionId: number, enabled: boolean) {
+  await usingApi(async (api) => {
+    // Run the transaction
+    const tx = api.tx.unique.setCollectionPermissions(collectionId, {mintMode: enabled});
+    const events = await expect(submitTransactionExpectFailAsync(sender, tx)).to.be.rejected;
+    const result = getCreateCollectionResult(events);
+    // tslint:disable-next-line:no-unused-expression
+    expect(result.success).to.be.false;
+  });
+}
+
+export async function setChainLimitsExpectFailure(sender: IKeyringPair, limits: IChainLimits) {
+  await usingApi(async (api) => {
+    // Run the transaction
+    const tx = api.tx.unique.setChainLimits(limits);
+    const events = await expect(submitTransactionExpectFailAsync(sender, tx)).to.be.rejected;
+    const result = getCreateCollectionResult(events);
+    // tslint:disable-next-line:no-unused-expression
+    expect(result.success).to.be.false;
+  });
+}
+
+export async function isAllowlisted(api: ApiPromise, collectionId: number, address: string | CrossAccountId | IKeyringPair) {
+  return (await api.rpc.unique.allowed(collectionId, normalizeAccountId(address))).toJSON();
+}
+
+export async function addToAllowListExpectSuccess(sender: IKeyringPair, collectionId: number, address: string | AccountId | CrossAccountId) {
+  await usingApi(async (api) => {
+    expect(await isAllowlisted(api, collectionId, normalizeAccountId(address))).to.be.false;
+
+    // Run the transaction
+    const tx = api.tx.unique.addToAllowList(collectionId, normalizeAccountId(address));
+    const events = await submitTransactionAsync(sender, tx);
+    const result = getGenericResult(events);
+    expect(result.success).to.be.true;
+
+    expect(await isAllowlisted(api, collectionId, normalizeAccountId(address))).to.be.true;
+  });
+}
+
+export async function addToAllowListAgainExpectSuccess(sender: IKeyringPair, collectionId: number, address: string | AccountId) {
+  await usingApi(async (api) => {
+
+    expect(await isAllowlisted(api, collectionId, normalizeAccountId(address))).to.be.true;
+
+    // Run the transaction
+    const tx = api.tx.unique.addToAllowList(collectionId, normalizeAccountId(address));
+    const events = await submitTransactionAsync(sender, tx);
+    const result = getGenericResult(events);
+    expect(result.success).to.be.true;
+
+    expect(await isAllowlisted(api, collectionId, normalizeAccountId(address))).to.be.true;
+  });
+}
+
+export async function addToAllowListExpectFail(sender: IKeyringPair, collectionId: number, address: string | AccountId) {
+  await usingApi(async (api) => {
+
+    // Run the transaction
+    const tx = api.tx.unique.addToAllowList(collectionId, normalizeAccountId(address));
+    const events = await expect(submitTransactionExpectFailAsync(sender, tx)).to.be.rejected;
+    const result = getGenericResult(events);
+
+    // What to expect
+    // tslint:disable-next-line:no-unused-expression
+    expect(result.success).to.be.false;
+  });
+}
+
+export async function removeFromAllowListExpectSuccess(sender: IKeyringPair, collectionId: number, address: CrossAccountId) {
+  await usingApi(async (api) => {
+    // Run the transaction
+    const tx = api.tx.unique.removeFromAllowList(collectionId, normalizeAccountId(address));
+    const events = await submitTransactionAsync(sender, tx);
+    const result = getGenericResult(events);
+
+    // What to expect
+    // tslint:disable-next-line:no-unused-expression
+    expect(result.success).to.be.true;
+  });
+}
+
+export async function removeFromAllowListExpectFailure(sender: IKeyringPair, collectionId: number, address: CrossAccountId) {
+  await usingApi(async (api) => {
+    // Run the transaction
+    const tx = api.tx.unique.removeFromAllowList(collectionId, normalizeAccountId(address));
+    const events = await expect(submitTransactionExpectFailAsync(sender, tx)).to.be.rejected;
+    const result = getGenericResult(events);
+
+    // What to expect
+    // tslint:disable-next-line:no-unused-expression
+    expect(result.success).to.be.false;
+  });
+}
+
+export const getDetailedCollectionInfo = async (api: ApiPromise, collectionId: number)
+  : Promise<UpDataStructsRpcCollection | null> => {
+  return (await api.rpc.unique.collectionById(collectionId)).unwrapOr(null);
+};
+
+export const getCreatedCollectionCount = async (api: ApiPromise): Promise<number> => {
+  // set global object - collectionsCount
+  return (await api.rpc.unique.collectionStats()).created.toNumber();
+};
+
+export async function queryCollectionExpectSuccess(api: ApiPromise, collectionId: number): Promise<UpDataStructsRpcCollection> {
+  return (await api.rpc.unique.collectionById(collectionId)).unwrap();
+}
+
+export const describe_xcm = (
+  process.env.RUN_XCM_TESTS
+    ? describe
+    : describe.skip
+);
+
+export async function waitNewBlocks(blocksCount = 1): Promise<void> {
+  await usingApi(async (api) => {
+    const promise = new Promise<void>(async (resolve) => {
+      const unsubscribe = await api.rpc.chain.subscribeNewHeads(() => {
+        if (blocksCount > 0) {
+          blocksCount--;
+        } else {
+          unsubscribe();
+          resolve();
+        }
+      });
+    });
+    return promise;
+  });
+}
+
+export async function waitEvent(
+  api: ApiPromise,
+  maxBlocksToWait: number,
+  eventSection: string,
+  eventMethod: string,
+): Promise<EventRecord | null> {
+
+  const promise = new Promise<EventRecord | null>(async (resolve) => {
+    const unsubscribe = await api.rpc.chain.subscribeNewHeads(async header => {
+      const blockNumber = header.number.toHuman();
+      const blockHash = header.hash;
+      const eventIdStr = `${eventSection}.${eventMethod}`;
+      const waitLimitStr = `wait blocks remaining: ${maxBlocksToWait}`;
+
+      console.log(`[Block #${blockNumber}] Waiting for event \`${eventIdStr}\` (${waitLimitStr})`);
+
+      const apiAt = await api.at(blockHash);
+      const eventRecords = await apiAt.query.system.events();
+
+      const neededEvent = eventRecords.find(r => {
+        return r.event.section == eventSection && r.event.method == eventMethod;
+      });
+
+      if (neededEvent) {
+        unsubscribe();
+        resolve(neededEvent);
+      } else if (maxBlocksToWait > 0) {
+        maxBlocksToWait--;
+      } else {
+        console.log(`Event \`${eventIdStr}\` is NOT found`);
+
+        unsubscribe();
+        resolve(null);
+      }
+    });
+  });
+  return promise;
+}
+
+export async function repartitionRFT(
+  api: ApiPromise,
+  collectionId: number,
+  sender: IKeyringPair,
+  tokenId: number,
+  amount: bigint,
+): Promise<boolean> {
+  const tx = api.tx.unique.repartition(collectionId, tokenId, amount);
+  const events = await submitTransactionAsync(sender, tx);
+  const result = getGenericResult(events);
+
+  return result.success;
+}
+
+export async function itApi(name: string, cb: (apis: { api: ApiPromise, privateKeyWrapper: (account: string) => IKeyringPair }) => any, opts: { only?: boolean, skip?: boolean } = {}) {
+  let i: any = it;
+  if (opts.only) i = i.only;
+  else if (opts.skip) i = i.skip;
+  i(name, async () => {
+    await usingApi(async (api, privateKeyWrapper) => {
+      await cb({api, privateKeyWrapper});
+    });
+  });
+}
+
+itApi.only = (name: string, cb: (apis: { api: ApiPromise, privateKeyWrapper: (account: string) => IKeyringPair }) => any) => itApi(name, cb, {only: true});
+itApi.skip = (name: string, cb: (apis: { api: ApiPromise, privateKeyWrapper: (account: string) => IKeyringPair }) => any) => itApi(name, cb, {skip: true});
+
+let accountSeed = 10000;
+export function generateKeyringPair(keyring: Keyring) {
+  const privateKey = `0xDEADBEEF${(Date.now() + (accountSeed++)).toString(16).padStart(64 - 8, '0')}`;
+  return keyring.addFromUri(privateKey);
+}
+
+export async function expectSubstrateEventsAtBlock(api: ApiPromise, blockNumber: AnyNumber | BlockNumber, section: string, methods: string[], dryRun = false) {
+  const blockHash = await api.rpc.chain.getBlockHash(blockNumber);
+  const subEvents = (await api.query.system.events.at(blockHash))
+    .filter(x => x.event.section === section)
+    .map((x) => x.toHuman());
+  const events = methods.map((m) => {
+    return {
+      event: {
+        method: m,
+        section,
+      },
+    };
+  });
+  if (!dryRun) {
+    expect(subEvents).to.be.like(events);
+  }
+  return subEvents;
+}
addedtests/src/deprecated-helpers/util.tsdiffbeforeafterboth
--- /dev/null
+++ b/tests/src/deprecated-helpers/util.ts
@@ -0,0 +1,46 @@
+// Copyright 2019-2022 Unique Network (Gibraltar) Ltd.
+// This file is part of Unique Network.
+
+// Unique Network is free software: you can redistribute it and/or modify
+// it under the terms of the GNU General Public License as published by
+// the Free Software Foundation, either version 3 of the License, or
+// (at your option) any later version.
+
+// Unique Network is distributed in the hope that it will be useful,
+// but WITHOUT ANY WARRANTY; without even the implied warranty of
+// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+// GNU General Public License for more details.
+
+// You should have received a copy of the GNU General Public License
+// along with Unique Network. If not, see <http://www.gnu.org/licenses/>.
+
+export function strToUTF16(str: string): any {
+  const buf: number[] = [];
+  for (let i=0, strLen=str.length; i < strLen; i++) {
+    buf.push(str.charCodeAt(i));
+  }
+  return buf;
+}
+
+export function utf16ToStr(buf: number[]): string {
+  let str = '';
+  for (let i=0, strLen=buf.length; i < strLen; i++) {
+    if (buf[i] != 0) str += String.fromCharCode(buf[i]);
+    else break;
+  }
+  return str;
+}
+
+export function hexToStr(buf: string): string {
+  let str = '';
+  let hexStart = buf.indexOf('0x');
+  if (hexStart < 0) hexStart = 0;
+  else hexStart = 2;  
+  for (let i=hexStart, strLen=buf.length; i < strLen; i+=2) {
+    const ch = buf[i] + buf[i+1];
+    const num = parseInt(ch, 16);
+    if (num != 0) str += String.fromCharCode(num);
+    else break;
+  }
+  return str;
+}
deletedtests/src/enableContractSponsoring.test.tsdiffbeforeafterboth
--- a/tests/src/enableContractSponsoring.test.ts
+++ /dev/null
@@ -1,102 +0,0 @@
-// Copyright 2019-2022 Unique Network (Gibraltar) Ltd.
-// This file is part of Unique Network.
-
-// Unique Network is free software: you can redistribute it and/or modify
-// it under the terms of the GNU General Public License as published by
-// the Free Software Foundation, either version 3 of the License, or
-// (at your option) any later version.
-
-// Unique Network is distributed in the hope that it will be useful,
-// but WITHOUT ANY WARRANTY; without even the implied warranty of
-// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
-// GNU General Public License for more details.
-
-// You should have received a copy of the GNU General Public License
-// along with Unique Network. If not, see <http://www.gnu.org/licenses/>.
-
-import {IKeyringPair} from '@polkadot/types/types';
-import chai from 'chai';
-import chaiAsPromised from 'chai-as-promised';
-import usingApi from './substrate/substrate-api';
-import {deployFlipper, getFlipValue, toggleFlipValueExpectSuccess} from './util/contracthelpers';
-import {
-  enableContractSponsoringExpectFailure,
-  enableContractSponsoringExpectSuccess,
-  findUnusedAddress,
-  setContractSponsoringRateLimitExpectSuccess,
-} from './util/helpers';
-
-chai.use(chaiAsPromised);
-const expect = chai.expect;
-
-// todo:playgrounds skipped ~ postponed
-describe.skip('Integration Test enableContractSponsoring', () => {
-  it('ensure tx fee is paid from endowment', async () => {
-    await usingApi(async (api, privateKeyWrapper) => {
-      const user = await findUnusedAddress(api, privateKeyWrapper);
-
-      const [flipper, deployer] = await deployFlipper(api, privateKeyWrapper);
-      await enableContractSponsoringExpectSuccess(deployer, flipper.address, true);
-      await setContractSponsoringRateLimitExpectSuccess(deployer, flipper.address, 1);
-      await toggleFlipValueExpectSuccess(user, flipper);
-
-      expect(await getFlipValue(flipper, deployer)).to.be.false;
-    });
-  });
-
-  it('ensure it can be enabled twice', async () => {
-    await usingApi(async (api, privateKeyWrapper) => {
-      const [flipper, deployer] = await deployFlipper(api, privateKeyWrapper);
-
-      await enableContractSponsoringExpectSuccess(deployer, flipper.address, true);
-      await enableContractSponsoringExpectSuccess(deployer, flipper.address, true);
-    });
-  });
-
-  it('ensure it can be disabled twice', async () => {
-    await usingApi(async (api, privateKeyWrapper) => {
-      const [flipper, deployer] = await deployFlipper(api, privateKeyWrapper);
-
-      await enableContractSponsoringExpectSuccess(deployer, flipper.address, true);
-      await enableContractSponsoringExpectSuccess(deployer, flipper.address, false);
-      await enableContractSponsoringExpectSuccess(deployer, flipper.address, false);
-    });
-  });
-
-  it('ensure it can be re-enabled', async () => {
-    await usingApi(async (api, privateKeyWrapper) => {
-      const [flipper, deployer] = await deployFlipper(api, privateKeyWrapper);
-
-      await enableContractSponsoringExpectSuccess(deployer, flipper.address, true);
-      await enableContractSponsoringExpectSuccess(deployer, flipper.address, false);
-      await enableContractSponsoringExpectSuccess(deployer, flipper.address, true);
-    });
-  });
-
-});
-
-describe.skip('Negative Integration Test enableContractSponsoring', () => {
-  let alice: IKeyringPair;
-
-  before(async () => {
-    await usingApi(async (api, privateKeyWrapper) => {
-      alice = privateKeyWrapper('//Alice');
-    });
-  });
-
-  it('fails when called for non-contract address', async () => {
-    await usingApi(async (api, privateKeyWrapper) => {
-      const user = await findUnusedAddress(api, privateKeyWrapper);
-
-      await enableContractSponsoringExpectFailure(alice, user.address, true);
-    });
-  });
-
-  it('fails when called by non-owning user', async () => {
-    await usingApi(async (api, privateKeyWrapper) => {
-      const [flipper] = await deployFlipper(api, privateKeyWrapper);
-
-      await enableContractSponsoringExpectFailure(alice, flipper.address, true);
-    });
-  });
-});
modifiedtests/src/eth/base.test.tsdiffbeforeafterboth
--- a/tests/src/eth/base.test.ts
+++ b/tests/src/eth/base.test.ts
@@ -14,16 +14,12 @@
 // You should have received a copy of the GNU General Public License
 // along with Unique Network. If not, see <http://www.gnu.org/licenses/>.
 
-import {
-  ethBalanceViaSub,
-  GAS_ARGS,
-  recordEthFee,
-} from './util/helpers';
 import {Contract} from 'web3-eth-contract';
 
 import {IKeyringPair} from '@polkadot/types/types';
 import {EthUniqueHelper, itEth, usingEthPlaygrounds, expect} from './util/playgrounds';
 
+
 describe('Contract calls', () => {
   let donor: IKeyringPair;
 
@@ -37,15 +33,15 @@
     const deployer = await helper.eth.createAccountWithBalance(donor);
     const flipper = await helper.eth.deployFlipper(deployer);
 
-    const cost = await recordEthFee(helper.api!, deployer, () => flipper.methods.flip().send({from: deployer}));
+    const cost = await helper.eth.calculateFee({Ethereum: deployer}, () => flipper.methods.flip().send({from: deployer}));
     expect(cost < BigInt(0.2 * Number(helper.balance.getOneTokenNominal()))).to.be.true;
   });
 
   itEth('Balance transfer fee is less than 0.2 UNQ', async ({helper}) => {
     const userA = await helper.eth.createAccountWithBalance(donor);
     const userB = helper.eth.createAccount();
-    const cost = await recordEthFee(helper.api!, userA, () => helper.web3!.eth.sendTransaction({from: userA, to: userB, value: '1000000', ...GAS_ARGS}));
-    const balanceB = await ethBalanceViaSub(helper.api!, userB);
+    const cost = await helper.eth.calculateFee({Ethereum: userA}, () => helper.getWeb3().eth.sendTransaction({from: userA, to: userB, value: '1000000', gas: helper.eth.DEFAULT_GAS}));
+    const balanceB = await helper.balance.getEthereum(userB);
     expect(cost - balanceB < BigInt(0.2 * Number(helper.balance.getOneTokenNominal()))).to.be.true;
   });
 
@@ -60,7 +56,7 @@
     const address = helper.ethAddress.fromCollectionId(collection.collectionId);
     const contract = helper.ethNativeContract.collection(address, 'nft', caller);
 
-    const cost = await recordEthFee(helper.api!, caller, () => contract.methods.transfer(receiver, tokenId).send(caller));
+    const cost = await helper.eth.calculateFee({Ethereum: caller}, () => contract.methods.transfer(receiver, tokenId).send(caller));
 
     const fee = Number(cost) / Number(helper.balance.getOneTokenNominal());
     const expectedFee = 0.15;
modifiedtests/src/eth/collectionSponsoring.test.tsdiffbeforeafterboth
--- a/tests/src/eth/collectionSponsoring.test.ts
+++ b/tests/src/eth/collectionSponsoring.test.ts
@@ -1,33 +1,45 @@
-import {addToAllowListExpectSuccess, confirmSponsorshipExpectSuccess, createCollectionExpectSuccess, enablePublicMintingExpectSuccess, getDetailedCollectionInfo, setCollectionSponsorExpectSuccess, UNIQUE} from '../util/helpers';
-import {itWeb3, createEthAccount, collectionIdToAddress, GAS_ARGS, normalizeEvents, createEthAccountWithBalance, evmCollectionHelpers, getCollectionAddressFromResult, evmCollection, ethBalanceViaSub} from './util/helpers';
-import nonFungibleAbi from './nonFungibleAbi.json';
-import {expect} from 'chai';
-import {evmToAddress} from '@polkadot/util-crypto';
+import {IKeyringPair} from '@polkadot/types/types';
+import {usingPlaygrounds} from './../util/playgrounds/index';
+import {itEth, expect} from '../eth/util/playgrounds';
 
 describe('evm collection sponsoring', () => {
-  itWeb3('sponsors mint transactions', async ({web3, privateKeyWrapper}) => {
-    const alice = privateKeyWrapper('//Alice');
+  let donor: IKeyringPair;
+  let alice: IKeyringPair;
+  let nominal: bigint;
+
+  before(async () => {
+    await usingPlaygrounds(async (helper, privateKey) => {
+      donor = privateKey('//Alice');
+      nominal = helper.balance.getOneTokenNominal();
+    });
+  });
+
+  beforeEach(async () => {
+    await usingPlaygrounds(async (helper) => {
+      [alice] = await helper.arrange.createAccounts([1000n], donor);
+    });
+  });
 
-    const collection = await createCollectionExpectSuccess();
-    await setCollectionSponsorExpectSuccess(collection, alice.address);
-    await confirmSponsorshipExpectSuccess(collection);
+  itEth('sponsors mint transactions', async ({helper}) => {
+    const collection = await helper.nft.mintCollection(alice, {tokenPrefix: 'spnr', permissions: {mintMode: true}});
+    await collection.setSponsor(alice, alice.address);
+    await collection.confirmSponsorship(alice);
 
-    const minter = createEthAccount(web3);
-    expect(await web3.eth.getBalance(minter)).to.equal('0');
+    const minter = helper.eth.createAccount();
+    expect(await helper.balance.getEthereum(minter)).to.equal(0n);
 
-    const address = collectionIdToAddress(collection);
-    const contract = new web3.eth.Contract(nonFungibleAbi as any, collectionIdToAddress(collection), {from: minter, ...GAS_ARGS});
+    const collectionAddress = helper.ethAddress.fromCollectionId(collection.collectionId);
+    const contract = helper.ethNativeContract.collection(collectionAddress, 'nft', minter);
 
-    await enablePublicMintingExpectSuccess(alice, collection);
-    await addToAllowListExpectSuccess(alice, collection, {Ethereum: minter});
+    await collection.addToAllowList(alice, {Ethereum: minter});
 
     const nextTokenId = await contract.methods.nextTokenId().call();
     expect(nextTokenId).to.equal('1');
     const result = await contract.methods.mint(minter, nextTokenId).send();
-    const events = normalizeEvents(result.events);
+    const events = helper.eth.normalizeEvents(result.events);
     expect(events).to.be.deep.equal([
       {
-        address,
+        address: collectionAddress,
         event: 'Transfer',
         args: {
           from: '0x0000000000000000000000000000000000000000',
@@ -59,13 +71,14 @@
   //   expect(bigIntToSub(api, BigInt(sponsorTuple[1]))).to.be.eq(sponsor.address);
   // });
 
-  itWeb3('Remove sponsor', async ({api, web3, privateKeyWrapper}) => {
-    const owner = await createEthAccountWithBalance(api, web3, privateKeyWrapper);
-    const collectionHelpers = evmCollectionHelpers(web3, owner);
-    let result = await collectionHelpers.methods.createNonfungibleCollection('Sponsor collection', '1', '1').send({value: Number(2n * UNIQUE)});
-    const {collectionIdAddress} = await getCollectionAddressFromResult(api, result);
-    const sponsor = await createEthAccountWithBalance(api, web3, privateKeyWrapper);
-    const collectionEvm = evmCollection(web3, owner, collectionIdAddress);
+  itEth('Remove sponsor', async ({helper}) => {
+    const owner = await helper.eth.createAccountWithBalance(donor);
+    const collectionHelpers = helper.ethNativeContract.collectionHelpers(owner);
+
+    let result = await collectionHelpers.methods.createNonfungibleCollection('Sponsor collection', '1', '1').send({value: Number(2n * nominal)});
+    const collectionIdAddress = helper.ethAddress.normalizeAddress(result.events.CollectionCreated.returnValues.collectionId);
+    const sponsor = await helper.eth.createAccountWithBalance(donor);
+    const collectionEvm = helper.ethNativeContract.collection(collectionIdAddress, 'nft', owner);
 
     expect(await collectionEvm.methods.hasCollectionPendingSponsor().call({from: owner})).to.be.false;
     result = await collectionEvm.methods.setCollectionSponsor(sponsor).send({from: owner});
@@ -80,30 +93,31 @@
     expect(sponsorTuple.field_0).to.be.eq('0x0000000000000000000000000000000000000000');
   });
 
-  itWeb3('Sponsoring collection from evm address via access list', async ({api, web3, privateKeyWrapper}) => {
-    const owner = await createEthAccountWithBalance(api, web3, privateKeyWrapper);
-    const collectionHelpers = evmCollectionHelpers(web3, owner);
-    let result = await collectionHelpers.methods.createNonfungibleCollection('Sponsor collection', '1', '1').send({value: Number(2n * UNIQUE)});
-    const {collectionIdAddress, collectionId} = await getCollectionAddressFromResult(api, result);
-    const sponsor = await createEthAccountWithBalance(api, web3, privateKeyWrapper);
-    const collectionEvm = evmCollection(web3, owner, collectionIdAddress);
+  itEth('Sponsoring collection from evm address via access list', async ({helper}) => {
+    const owner = await helper.eth.createAccountWithBalance(donor);
+    const collectionHelpers = helper.ethNativeContract.collectionHelpers(owner);
+
+    let result = await collectionHelpers.methods.createNonfungibleCollection('Sponsor collection', '1', '1').send({value: Number(2n * nominal)});
+    const collectionIdAddress = helper.ethAddress.normalizeAddress(result.events.CollectionCreated.returnValues.collectionId);
+    const collectionId = helper.ethAddress.extractCollectionId(collectionIdAddress);
+    const collection = helper.nft.getCollectionObject(collectionId);
+    const sponsor = await helper.eth.createAccountWithBalance(donor);
+    const collectionEvm = helper.ethNativeContract.collection(collectionIdAddress, 'nft', owner);
+
     result = await collectionEvm.methods.setCollectionSponsor(sponsor).send({from: owner});
-    let collectionSub = (await getDetailedCollectionInfo(api, collectionId))!;
-    const ss58Format = (api.registry.getChainProperties())!.toJSON().ss58Format;
-    expect(collectionSub.sponsorship.isUnconfirmed).to.be.true;
-    expect(collectionSub.sponsorship.asUnconfirmed.toHuman()).to.be.eq(evmToAddress(sponsor, Number(ss58Format)));
+    let collectionData = (await collection.getData())!;
+    expect(collectionData.raw.sponsorship.Unconfirmed).to.be.eq(helper.address.ethToSubstrate(sponsor, true));
     await expect(collectionEvm.methods.confirmCollectionSponsorship().call()).to.be.rejectedWith('caller is not set as sponsor');
 
     await collectionEvm.methods.confirmCollectionSponsorship().send({from: sponsor});
-    collectionSub = (await getDetailedCollectionInfo(api, collectionId))!;
-    expect(collectionSub.sponsorship.isConfirmed).to.be.true;
-    expect(collectionSub.sponsorship.asConfirmed.toHuman()).to.be.eq(evmToAddress(sponsor, Number(ss58Format)));
+    collectionData = (await collection.getData())!;
+    expect(collectionData.raw.sponsorship.Confirmed).to.be.eq(helper.address.ethToSubstrate(sponsor, true));
 
-    const user = createEthAccount(web3);
+    const user = helper.eth.createAccount();
     const nextTokenId = await collectionEvm.methods.nextTokenId().call();
     expect(nextTokenId).to.be.equal('1');
 
-    const oldPermissions = (await getDetailedCollectionInfo(api, collectionId))!.permissions.toHuman();
+    const oldPermissions = (await collection.getData())!.raw.permissions; // (await getDetailedCollectionInfo(api, collectionId))!.permissions.toHuman();
     expect(oldPermissions.mintMode).to.be.false;
     expect(oldPermissions.access).to.be.equal('Normal');
 
@@ -111,12 +125,12 @@
     await collectionEvm.methods.addToCollectionAllowList(user).send({from: owner});
     await collectionEvm.methods.setCollectionMintMode(true).send({from: owner});
 
-    const newPermissions = (await getDetailedCollectionInfo(api, collectionId))!.permissions.toHuman();
+    const newPermissions = (await collection.getData())!.raw.permissions; // (await getDetailedCollectionInfo(api, collectionId))!.permissions.toHuman();
     expect(newPermissions.mintMode).to.be.true;
     expect(newPermissions.access).to.be.equal('AllowList');
 
-    const ownerBalanceBefore = await ethBalanceViaSub(api, owner);
-    const sponsorBalanceBefore = await ethBalanceViaSub(api, sponsor);
+    const ownerBalanceBefore = await helper.balance.getSubstrate(helper.address.ethToSubstrate(owner));
+    const sponsorBalanceBefore = await helper.balance.getSubstrate(helper.address.ethToSubstrate(sponsor));
 
     {
       const nextTokenId = await collectionEvm.methods.nextTokenId().call();
@@ -126,7 +140,7 @@
         nextTokenId,
         'Test URI',
       ).send({from: user});
-      const events = normalizeEvents(result.events);
+      const events = helper.eth.normalizeEvents(result.events);
 
       expect(events).to.be.deep.equal([
         {
@@ -140,8 +154,8 @@
         },
       ]);
 
-      const ownerBalanceAfter = await ethBalanceViaSub(api, owner);
-      const sponsorBalanceAfter = await ethBalanceViaSub(api, sponsor);
+      const ownerBalanceAfter = await helper.balance.getSubstrate(await helper.address.ethToSubstrate(owner));
+      const sponsorBalanceAfter = await helper.balance.getSubstrate(await helper.address.ethToSubstrate(sponsor));
 
       expect(await collectionEvm.methods.tokenURI(nextTokenId).call()).to.be.equal('Test URI');
       expect(ownerBalanceBefore).to.be.eq(ownerBalanceAfter);
@@ -205,33 +219,34 @@
   //   }
   // });
 
-  itWeb3('Check that transaction via EVM spend money from sponsor address', async ({api, web3, privateKeyWrapper}) => {
-    const owner = await createEthAccountWithBalance(api, web3, privateKeyWrapper);
-    const collectionHelpers = evmCollectionHelpers(web3, owner);
-    let result = await collectionHelpers.methods.createNonfungibleCollection('Sponsor collection', '1', '1').send({value: Number(2n * UNIQUE)});
-    const {collectionIdAddress, collectionId} = await getCollectionAddressFromResult(api, result);
-    const sponsor = await createEthAccountWithBalance(api, web3, privateKeyWrapper);
-    const collectionEvm = evmCollection(web3, owner, collectionIdAddress);
+  itEth('Check that transaction via EVM spend money from sponsor address', async ({helper}) => {
+    const owner = await helper.eth.createAccountWithBalance(donor);
+    const collectionHelpers = helper.ethNativeContract.collectionHelpers(owner);
+
+    let result = await collectionHelpers.methods.createNonfungibleCollection('Sponsor collection', '1', '1').send({value: Number(2n * nominal)});
+    const collectionIdAddress = helper.ethAddress.normalizeAddress(result.events.CollectionCreated.returnValues.collectionId);
+    const collectionId = helper.ethAddress.extractCollectionId(collectionIdAddress);
+    const collection = helper.nft.getCollectionObject(collectionId);
+    const sponsor = await helper.eth.createAccountWithBalance(donor);
+    const collectionEvm = helper.ethNativeContract.collection(collectionIdAddress, 'nft', owner);
+
     result = await collectionEvm.methods.setCollectionSponsor(sponsor).send();
-    let collectionSub = (await getDetailedCollectionInfo(api, collectionId))!;
-    const ss58Format = (api.registry.getChainProperties())!.toJSON().ss58Format;
-    expect(collectionSub.sponsorship.isUnconfirmed).to.be.true;
-    expect(collectionSub.sponsorship.asUnconfirmed.toHuman()).to.be.eq(evmToAddress(sponsor, Number(ss58Format)));
+    let collectionData = (await collection.getData())!;
+    expect(collectionData.raw.sponsorship.Unconfirmed).to.be.eq(helper.address.ethToSubstrate(sponsor, true));
     await expect(collectionEvm.methods.confirmCollectionSponsorship().call()).to.be.rejectedWith('caller is not set as sponsor');
-    const sponsorCollection = evmCollection(web3, sponsor, collectionIdAddress);
+
+    const sponsorCollection = helper.ethNativeContract.collection(collectionIdAddress, 'nft', sponsor);
     await sponsorCollection.methods.confirmCollectionSponsorship().send();
-    collectionSub = (await getDetailedCollectionInfo(api, collectionId))!;
-    expect(collectionSub.sponsorship.isConfirmed).to.be.true;
-    expect(collectionSub.sponsorship.asConfirmed.toHuman()).to.be.eq(evmToAddress(sponsor, Number(ss58Format)));
+    collectionData = (await collection.getData())!;
+    expect(collectionData.raw.sponsorship.Confirmed).to.be.eq(helper.address.ethToSubstrate(sponsor, true));
 
-    const user = createEthAccount(web3);
+    const user = helper.eth.createAccount();
     await collectionEvm.methods.addCollectionAdmin(user).send();
     
-    const ownerBalanceBefore = await ethBalanceViaSub(api, owner);
-    const sponsorBalanceBefore = await ethBalanceViaSub(api, sponsor);
-    
-  
-    const userCollectionEvm = evmCollection(web3, user, collectionIdAddress);
+    const ownerBalanceBefore = await helper.balance.getSubstrate(helper.address.ethToSubstrate(owner));
+    const sponsorBalanceBefore = await helper.balance.getSubstrate(helper.address.ethToSubstrate(sponsor));
+
+    const userCollectionEvm = helper.ethNativeContract.collection(collectionIdAddress, 'nft', user);
     const nextTokenId = await userCollectionEvm.methods.nextTokenId().call();
     expect(nextTokenId).to.be.equal('1');
     result = await userCollectionEvm.methods.mintWithTokenURI(
@@ -240,8 +255,8 @@
       'Test URI',
     ).send();
 
-    const events = normalizeEvents(result.events);
-    const address = collectionIdToAddress(collectionId);
+    const events = helper.eth.normalizeEvents(result.events);
+    const address = helper.ethAddress.fromCollectionId(collectionId);
 
     expect(events).to.be.deep.equal([
       {
@@ -256,9 +271,9 @@
     ]);
     expect(await userCollectionEvm.methods.tokenURI(nextTokenId).call()).to.be.equal('Test URI');
   
-    const ownerBalanceAfter = await ethBalanceViaSub(api, owner);
+    const ownerBalanceAfter = await helper.balance.getSubstrate(helper.address.ethToSubstrate(owner));
     expect(ownerBalanceAfter).to.be.eq(ownerBalanceBefore);
-    const sponsorBalanceAfter = await ethBalanceViaSub(api, sponsor);
+    const sponsorBalanceAfter = await helper.balance.getSubstrate(helper.address.ethToSubstrate(sponsor));
     expect(sponsorBalanceAfter < sponsorBalanceBefore).to.be.true;
   });
 });
modifiedtests/src/eth/contractSponsoring.test.tsdiffbeforeafterboth
--- a/tests/src/eth/contractSponsoring.test.ts
+++ b/tests/src/eth/contractSponsoring.test.ts
@@ -14,45 +14,39 @@
 // You should have received a copy of the GNU General Public License
 // along with Unique Network. If not, see <http://www.gnu.org/licenses/>.
 
+import {IKeyringPair} from '@polkadot/types/types';
 import * as solc from 'solc';
-import {expect} from 'chai';
-import {expectSubstrateEventsAtBlock} from '../util/helpers';
-import Web3 from 'web3';
+import {EthUniqueHelper} from './util/playgrounds/unique.dev';
+import {itEth, expect, SponsoringMode, usingEthPlaygrounds} from '../eth/util/playgrounds';
+import {usingPlaygrounds} from '../util/playgrounds';
+import {CompiledContract} from './util/playgrounds/types';
 
-import {
-  contractHelpers,
-  createEthAccountWithBalance,
-  transferBalanceToEth,
-  deployFlipper,
-  itWeb3,
-  SponsoringMode,
-  createEthAccount,
-  ethBalanceViaSub,
-  normalizeEvents,
-  CompiledContract,
-  GAS_ARGS,
-  subToEth,
-} from './util/helpers';
-import {submitTransactionAsync} from '../substrate/substrate-api';
+describe('Sponsoring EVM contracts', () => {
+  let donor: IKeyringPair;
+
+  before(async () => {
+    await usingPlaygrounds(async (_helper, privateKey) => {
+      donor = privateKey('//Alice');
+    });
+  });
+
+  itEth('Self sponsored can be set by the address that deployed the contract', async ({helper, privateKey}) => {
+    const owner = await helper.eth.createAccountWithBalance(donor);
+    const flipper = await helper.eth.deployFlipper(owner);
+    const helpers = helper.ethNativeContract.contractHelpers(owner);
 
-describe('Sponsoring EVM contracts', () => {
-  itWeb3('Self sponsored can be set by the address that deployed the contract', async ({api, web3, privateKeyWrapper}) => {
-    const owner = await createEthAccountWithBalance(api, web3, privateKeyWrapper);
-    const flipper = await deployFlipper(web3, owner);
-    const helpers = contractHelpers(web3, owner);
     expect(await helpers.methods.hasSponsor(flipper.options.address).call()).to.be.false;
     await expect(helpers.methods.selfSponsoredEnable(flipper.options.address).send()).to.be.not.rejected;
     expect(await helpers.methods.hasSponsor(flipper.options.address).call()).to.be.true;
   });
 
-  itWeb3('Set self sponsored events', async ({api, web3, privateKeyWrapper}) => {
-    const owner = await createEthAccountWithBalance(api, web3, privateKeyWrapper);
-    const flipper = await deployFlipper(web3, owner);
-    const helpers = contractHelpers(web3, owner);
+  itEth('Set self sponsored events', async ({helper}) => {
+    const owner = await helper.eth.createAccountWithBalance(donor);
+    const flipper = await helper.eth.deployFlipper(owner);
+    const helpers = helper.ethNativeContract.contractHelpers(owner);
     
     const result = await helpers.methods.selfSponsoredEnable(flipper.options.address).send();
-    // console.log(result);
-    const ethEvents = normalizeEvents(result.events);
+    const ethEvents = helper.eth.helper.eth.normalizeEvents(result.events);
     expect(ethEvents).to.be.deep.equal([
       {
         address: flipper.options.address,
@@ -71,62 +65,59 @@
         },
       },
     ]);
-
-    await expectSubstrateEventsAtBlock(
-      api, 
-      result.blockNumber,
-      'evmContractHelpers',
-      ['ContractSponsorSet','ContractSponsorshipConfirmed'],
-    );
   });
 
-  itWeb3('Self sponsored can not be set by the address that did not deployed the contract', async ({api, web3, privateKeyWrapper}) => {
-    const owner = await createEthAccountWithBalance(api, web3, privateKeyWrapper);
-    const notOwner = await createEthAccountWithBalance(api, web3, privateKeyWrapper);
-    const flipper = await deployFlipper(web3, owner);
-    const helpers = contractHelpers(web3, owner);
+  itEth('Self sponsored can not be set by the address that did not deployed the contract', async ({helper}) => {
+    const owner = await helper.eth.createAccountWithBalance(donor);
+    const notOwner = await helper.eth.createAccountWithBalance(donor);
+    const helpers = helper.ethNativeContract.contractHelpers(owner);
+    const flipper = await helper.eth.deployFlipper(owner);
+
     expect(await helpers.methods.hasSponsor(flipper.options.address).call()).to.be.false;
     await expect(helpers.methods.selfSponsoredEnable(flipper.options.address).call({from: notOwner})).to.be.rejectedWith('NoPermission');
     expect(await helpers.methods.hasSponsor(flipper.options.address).call()).to.be.false;
   });
 
-  itWeb3('Sponsoring can be set by the address that has deployed the contract', async ({api, web3, privateKeyWrapper}) => {
-    const owner = await createEthAccountWithBalance(api, web3, privateKeyWrapper);
-    const flipper = await deployFlipper(web3, owner);
-    const helpers = contractHelpers(web3, owner);
+  itEth('Sponsoring can be set by the address that has deployed the contract', async ({helper}) => {
+    const owner = await helper.eth.createAccountWithBalance(donor);
+    const helpers = helper.ethNativeContract.contractHelpers(owner);
+    const flipper = await helper.eth.deployFlipper(owner);
+
     expect(await helpers.methods.sponsoringEnabled(flipper.options.address).call()).to.be.false;
     await expect(helpers.methods.setSponsoringMode(flipper.options.address, SponsoringMode.Allowlisted).send({from: owner})).to.be.not.rejected;
     expect(await helpers.methods.sponsoringEnabled(flipper.options.address).call()).to.be.true;
   });
 
-  itWeb3('Sponsoring cannot be set by the address that did not deployed the contract', async ({api, web3, privateKeyWrapper}) => {
-    const owner = await createEthAccountWithBalance(api, web3, privateKeyWrapper);
-    const notOwner = await createEthAccountWithBalance(api, web3, privateKeyWrapper);
-    const flipper = await deployFlipper(web3, owner);
-    const helpers = contractHelpers(web3, owner);
+  itEth('Sponsoring cannot be set by the address that did not deployed the contract', async ({helper}) => {
+    const owner = await helper.eth.createAccountWithBalance(donor);
+    const notOwner = await helper.eth.createAccountWithBalance(donor);
+    const helpers = helper.ethNativeContract.contractHelpers(owner);
+    const flipper = await helper.eth.deployFlipper(owner);
+
     expect(await helpers.methods.sponsoringEnabled(flipper.options.address).call()).to.be.false;
     await expect(helpers.methods.setSponsoringMode(notOwner, SponsoringMode.Allowlisted).call({from: notOwner})).to.be.rejectedWith('NoPermission');
     expect(await helpers.methods.sponsoringEnabled(flipper.options.address).call()).to.be.false;
   });
   
-  itWeb3('Sponsor can be set by the address that deployed the contract', async ({api, web3, privateKeyWrapper}) => {
-    const owner = await createEthAccountWithBalance(api, web3, privateKeyWrapper);
-    const sponsor = await createEthAccountWithBalance(api, web3, privateKeyWrapper);
-    const flipper = await deployFlipper(web3, owner);
-    const helpers = contractHelpers(web3, owner);
+  itEth('Sponsor can be set by the address that deployed the contract', async ({helper}) => {
+    const owner = await helper.eth.createAccountWithBalance(donor);
+    const sponsor = await helper.eth.createAccountWithBalance(donor);
+    const helpers = helper.ethNativeContract.contractHelpers(owner);
+    const flipper = await helper.eth.deployFlipper(owner);
+
     expect(await helpers.methods.hasPendingSponsor(flipper.options.address).call()).to.be.false;
     await expect(helpers.methods.setSponsor(flipper.options.address, sponsor).send()).to.be.not.rejected;
     expect(await helpers.methods.hasPendingSponsor(flipper.options.address).call()).to.be.true;
   });
   
-  itWeb3('Set sponsor event', async ({api, web3, privateKeyWrapper}) => {
-    const owner = await createEthAccountWithBalance(api, web3, privateKeyWrapper);
-    const sponsor = await createEthAccountWithBalance(api, web3, privateKeyWrapper);
-    const flipper = await deployFlipper(web3, owner);
-    const helpers = contractHelpers(web3, owner);
+  itEth('Set sponsor event', async ({helper}) => {
+    const owner = await helper.eth.createAccountWithBalance(donor);
+    const sponsor = await helper.eth.createAccountWithBalance(donor);
+    const helpers = helper.ethNativeContract.contractHelpers(owner);
+    const flipper = await helper.eth.deployFlipper(owner);
     
     const result = await helpers.methods.setSponsor(flipper.options.address, sponsor).send();
-    const events = normalizeEvents(result.events);
+    const events = helper.eth.normalizeEvents(result.events);
     expect(events).to.be.deep.equal([
       {
         address: flipper.options.address,
@@ -137,45 +128,41 @@
         },
       },
     ]);
-
-    await expectSubstrateEventsAtBlock(
-      api, 
-      result.blockNumber,
-      'evmContractHelpers',
-      ['ContractSponsorSet'],
-    );
   });
   
-  itWeb3('Sponsor can not be set by the address that did not deployed the contract', async ({api, web3, privateKeyWrapper}) => {
-    const owner = await createEthAccountWithBalance(api, web3, privateKeyWrapper);
-    const sponsor = await createEthAccountWithBalance(api, web3, privateKeyWrapper);
-    const notOwner = await createEthAccountWithBalance(api, web3, privateKeyWrapper);
-    const flipper = await deployFlipper(web3, owner);
-    const helpers = contractHelpers(web3, owner);
+  itEth('Sponsor can not be set by the address that did not deployed the contract', async ({helper}) => {
+    const owner = await helper.eth.createAccountWithBalance(donor);
+    const sponsor = await helper.eth.createAccountWithBalance(donor);
+    const notOwner = await helper.eth.createAccountWithBalance(donor);
+    const helpers = helper.ethNativeContract.contractHelpers(owner);
+    const flipper = await helper.eth.deployFlipper(owner);
+
     expect(await helpers.methods.hasPendingSponsor(flipper.options.address).call()).to.be.false;
     await expect(helpers.methods.setSponsor(flipper.options.address, sponsor).call({from: notOwner})).to.be.rejectedWith('NoPermission');
     expect(await helpers.methods.hasPendingSponsor(flipper.options.address).call()).to.be.false;
   });
 
-  itWeb3('Sponsorship can be confirmed by the address that pending as sponsor', async ({api, web3, privateKeyWrapper}) => {
-    const owner = await createEthAccountWithBalance(api, web3, privateKeyWrapper);
-    const sponsor = await createEthAccountWithBalance(api, web3, privateKeyWrapper);
-    const flipper = await deployFlipper(web3, owner);
-    const helpers = contractHelpers(web3, owner);
+  itEth('Sponsorship can be confirmed by the address that pending as sponsor', async ({helper}) => {
+    const owner = await helper.eth.createAccountWithBalance(donor);
+    const sponsor = await helper.eth.createAccountWithBalance(donor);
+    const helpers = helper.ethNativeContract.contractHelpers(owner);
+    const flipper = await helper.eth.deployFlipper(owner);
+
     expect(await helpers.methods.hasSponsor(flipper.options.address).call()).to.be.false;
     await expect(helpers.methods.setSponsor(flipper.options.address, sponsor).send()).to.be.not.rejected;
     await expect(helpers.methods.confirmSponsorship(flipper.options.address).send({from: sponsor})).to.be.not.rejected;
     expect(await helpers.methods.hasSponsor(flipper.options.address).call()).to.be.true;
   });
 
-  itWeb3('Confirm sponsorship event', async ({api, web3, privateKeyWrapper}) => {
-    const owner = await createEthAccountWithBalance(api, web3, privateKeyWrapper);
-    const sponsor = await createEthAccountWithBalance(api, web3, privateKeyWrapper);
-    const flipper = await deployFlipper(web3, owner);
-    const helpers = contractHelpers(web3, owner);
+  itEth('Confirm sponsorship event', async ({helper}) => {
+    const owner = await helper.eth.createAccountWithBalance(donor);
+    const sponsor = await helper.eth.createAccountWithBalance(donor);
+    const helpers = helper.ethNativeContract.contractHelpers(owner);
+    const flipper = await helper.eth.deployFlipper(owner);
+
     await expect(helpers.methods.setSponsor(flipper.options.address, sponsor).send()).to.be.not.rejected;
     const result = await helpers.methods.confirmSponsorship(flipper.options.address).send({from: sponsor});
-    const events = normalizeEvents(result.events);
+    const events = helper.eth.normalizeEvents(result.events);
     expect(events).to.be.deep.equal([
       {
         address: flipper.options.address,
@@ -186,41 +173,37 @@
         },
       },
     ]);
+  });
 
-    await expectSubstrateEventsAtBlock(
-      api, 
-      result.blockNumber,
-      'evmContractHelpers',
-      ['ContractSponsorshipConfirmed'],
-    );
-  });
+  itEth('Sponsorship can not be confirmed by the address that not pending as sponsor', async ({helper}) => {
+    const owner = await helper.eth.createAccountWithBalance(donor);
+    const sponsor = await helper.eth.createAccountWithBalance(donor);
+    const notSponsor = await helper.eth.createAccountWithBalance(donor);
+    const helpers = helper.ethNativeContract.contractHelpers(owner);
+    const flipper = await helper.eth.deployFlipper(owner);
 
-  itWeb3('Sponsorship can not be confirmed by the address that not pending as sponsor', async ({api, web3, privateKeyWrapper}) => {
-    const owner = await createEthAccountWithBalance(api, web3, privateKeyWrapper);
-    const sponsor = await createEthAccountWithBalance(api, web3, privateKeyWrapper);
-    const notSponsor = await createEthAccountWithBalance(api, web3, privateKeyWrapper);
-    const flipper = await deployFlipper(web3, owner);
-    const helpers = contractHelpers(web3, owner);
     expect(await helpers.methods.hasSponsor(flipper.options.address).call()).to.be.false;
     await expect(helpers.methods.setSponsor(flipper.options.address, sponsor).send()).to.be.not.rejected;
     await expect(helpers.methods.confirmSponsorship(flipper.options.address).call({from: notSponsor})).to.be.rejectedWith('NoPermission');
     expect(await helpers.methods.hasSponsor(flipper.options.address).call()).to.be.false;
   });
 
-  itWeb3('Sponsorship can not be confirmed by the address that not set as sponsor', async ({api, web3, privateKeyWrapper}) => {
-    const owner = await createEthAccountWithBalance(api, web3, privateKeyWrapper);
-    const notSponsor = await createEthAccountWithBalance(api, web3, privateKeyWrapper);
-    const flipper = await deployFlipper(web3, owner);
-    const helpers = contractHelpers(web3, owner);
+  itEth('Sponsorship can not be confirmed by the address that not set as sponsor', async ({helper}) => {
+    const owner = await helper.eth.createAccountWithBalance(donor);
+    const notSponsor = await helper.eth.createAccountWithBalance(donor);
+    const helpers = helper.ethNativeContract.contractHelpers(owner);
+    const flipper = await helper.eth.deployFlipper(owner);
+
     expect(await helpers.methods.hasSponsor(flipper.options.address).call()).to.be.false;
     await expect(helpers.methods.confirmSponsorship(flipper.options.address).call({from: notSponsor})).to.be.rejectedWith('NoPendingSponsor');
     expect(await helpers.methods.hasSponsor(flipper.options.address).call()).to.be.false;
   });
 
-  itWeb3('Get self sponsored sponsor', async ({api, web3, privateKeyWrapper}) => {
-    const owner = await createEthAccountWithBalance(api, web3, privateKeyWrapper);
-    const flipper = await deployFlipper(web3, owner);
-    const helpers = contractHelpers(web3, owner);
+  itEth('Get self sponsored sponsor', async ({helper}) => {
+    const owner = await helper.eth.createAccountWithBalance(donor);
+    const helpers = helper.ethNativeContract.contractHelpers(owner);
+    const flipper = await helper.eth.deployFlipper(owner);
+
     await helpers.methods.selfSponsoredEnable(flipper.options.address).send();
     
     const result = await helpers.methods.sponsor(flipper.options.address).call();
@@ -229,11 +212,12 @@
     expect(result[1]).to.be.eq('0');
   });
 
-  itWeb3('Get confirmed sponsor', async ({api, web3, privateKeyWrapper}) => {
-    const owner = await createEthAccountWithBalance(api, web3, privateKeyWrapper);
-    const sponsor = await createEthAccountWithBalance(api, web3, privateKeyWrapper);
-    const flipper = await deployFlipper(web3, owner);
-    const helpers = contractHelpers(web3, owner);
+  itEth('Get confirmed sponsor', async ({helper}) => {
+    const owner = await helper.eth.createAccountWithBalance(donor);
+    const sponsor = await helper.eth.createAccountWithBalance(donor);
+    const helpers = helper.ethNativeContract.contractHelpers(owner);
+    const flipper = await helper.eth.deployFlipper(owner);
+
     await helpers.methods.setSponsor(flipper.options.address, sponsor).send();
     await helpers.methods.confirmSponsorship(flipper.options.address).send({from: sponsor});
     
@@ -243,11 +227,11 @@
     expect(result[1]).to.be.eq('0');
   });
 
-  itWeb3('Sponsor can be removed by the address that deployed the contract', async ({api, web3, privateKeyWrapper}) => {
-    const owner = await createEthAccountWithBalance(api, web3, privateKeyWrapper);
-    const sponsor = await createEthAccountWithBalance(api, web3, privateKeyWrapper);
-    const flipper = await deployFlipper(web3, owner);
-    const helpers = contractHelpers(web3, owner);
+  itEth('Sponsor can be removed by the address that deployed the contract', async ({helper}) => {
+    const owner = await helper.eth.createAccountWithBalance(donor);
+    const sponsor = await helper.eth.createAccountWithBalance(donor);
+    const helpers = helper.ethNativeContract.contractHelpers(owner);
+    const flipper = await helper.eth.deployFlipper(owner);
 
     expect(await helpers.methods.hasSponsor(flipper.options.address).call()).to.be.false;
     await helpers.methods.setSponsor(flipper.options.address, sponsor).send();
@@ -258,17 +242,17 @@
     expect(await helpers.methods.hasSponsor(flipper.options.address).call()).to.be.false;
   });
 
-  itWeb3('Remove sponsor event', async ({api, web3, privateKeyWrapper}) => {
-    const owner = await createEthAccountWithBalance(api, web3, privateKeyWrapper);
-    const sponsor = await createEthAccountWithBalance(api, web3, privateKeyWrapper);
-    const flipper = await deployFlipper(web3, owner);
-    const helpers = contractHelpers(web3, owner);
+  itEth('Remove sponsor event', async ({helper}) => {
+    const owner = await helper.eth.createAccountWithBalance(donor);
+    const sponsor = await helper.eth.createAccountWithBalance(donor);
+    const helpers = helper.ethNativeContract.contractHelpers(owner);
+    const flipper = await helper.eth.deployFlipper(owner);
 
     await helpers.methods.setSponsor(flipper.options.address, sponsor).send();
     await helpers.methods.confirmSponsorship(flipper.options.address).send({from: sponsor});
     
     const result = await helpers.methods.removeSponsor(flipper.options.address).send();
-    const events = normalizeEvents(result.events);
+    const events = helper.eth.normalizeEvents(result.events);
     expect(events).to.be.deep.equal([
       {
         address: flipper.options.address,
@@ -278,21 +262,14 @@
         },
       },
     ]);
-
-    await expectSubstrateEventsAtBlock(
-      api, 
-      result.blockNumber,
-      'evmContractHelpers',
-      ['ContractSponsorRemoved'],
-    );
   });
 
-  itWeb3('Sponsor can not be removed by the address that did not deployed the contract', async ({api, web3, privateKeyWrapper}) => {
-    const owner = await createEthAccountWithBalance(api, web3, privateKeyWrapper);
-    const notOwner = await createEthAccountWithBalance(api, web3, privateKeyWrapper);
-    const sponsor = await createEthAccountWithBalance(api, web3, privateKeyWrapper);
-    const flipper = await deployFlipper(web3, owner);
-    const helpers = contractHelpers(web3, owner);
+  itEth('Sponsor can not be removed by the address that did not deployed the contract', async ({helper}) => {
+    const owner = await helper.eth.createAccountWithBalance(donor);
+    const notOwner = await helper.eth.createAccountWithBalance(donor);
+    const sponsor = await helper.eth.createAccountWithBalance(donor);
+    const helpers = helper.ethNativeContract.contractHelpers(owner);
+    const flipper = await helper.eth.deployFlipper(owner);
 
     expect(await helpers.methods.hasSponsor(flipper.options.address).call()).to.be.false;
     await helpers.methods.setSponsor(flipper.options.address, sponsor).send();
@@ -303,14 +280,12 @@
     expect(await helpers.methods.hasSponsor(flipper.options.address).call()).to.be.true;
   });
 
-  itWeb3('In generous mode, non-allowlisted user transaction will be sponsored', async ({api, web3, privateKeyWrapper}) => {
-    const owner = await createEthAccountWithBalance(api, web3, privateKeyWrapper);
-    const sponsor = await createEthAccountWithBalance(api, web3, privateKeyWrapper);
-    const caller = await createEthAccountWithBalance(api, web3, privateKeyWrapper);
-
-    const flipper = await deployFlipper(web3, owner);
-
-    const helpers = contractHelpers(web3, owner);
+  itEth('In generous mode, non-allowlisted user transaction will be sponsored', async ({helper}) => {
+    const owner = await helper.eth.createAccountWithBalance(donor);
+    const sponsor = await helper.eth.createAccountWithBalance(donor);
+    const caller = await helper.eth.createAccountWithBalance(donor);
+    const helpers = helper.ethNativeContract.contractHelpers(owner);
+    const flipper = await helper.eth.deployFlipper(owner);
 
     await helpers.methods.setSponsor(flipper.options.address, sponsor).send();
     await helpers.methods.confirmSponsorship(flipper.options.address).send({from: sponsor});
@@ -318,57 +293,52 @@
     await helpers.methods.setSponsoringMode(flipper.options.address, SponsoringMode.Generous).send({from: owner});
     await helpers.methods.setSponsoringRateLimit(flipper.options.address, 0).send({from: owner});
 
-    const sponsorBalanceBefore = await ethBalanceViaSub(api, sponsor);
-    const callerBalanceBefore = await ethBalanceViaSub(api, caller);
+    const sponsorBalanceBefore = await helper.balance.getSubstrate(await helper.address.ethToSubstrate(sponsor));
+    const callerBalanceBefore = await helper.balance.getSubstrate(await helper.address.ethToSubstrate(caller));
 
     await flipper.methods.flip().send({from: caller});
     expect(await flipper.methods.getValue().call()).to.be.true;
 
     // Balance should be taken from sponsor instead of caller
-    const sponsorBalanceAfter = await ethBalanceViaSub(api, sponsor);
-    const callerBalanceAfter = await ethBalanceViaSub(api, caller);
+    const sponsorBalanceAfter = await helper.balance.getSubstrate(await helper.address.ethToSubstrate(sponsor));
+    const callerBalanceAfter = await helper.balance.getSubstrate(await helper.address.ethToSubstrate(caller));
     expect(sponsorBalanceAfter < sponsorBalanceBefore).to.be.true;
     expect(callerBalanceAfter).to.be.eq(callerBalanceBefore);
   });
-
-  itWeb3('In generous mode, non-allowlisted user transaction will be self sponsored', async ({api, web3, privateKeyWrapper}) => {
-    const alice = privateKeyWrapper('//Alice');
-
-    const owner = await createEthAccountWithBalance(api, web3, privateKeyWrapper);
-    const caller = await createEthAccountWithBalance(api, web3, privateKeyWrapper);
-
-    const flipper = await deployFlipper(web3, owner);
 
-    const helpers = contractHelpers(web3, owner);
+  itEth('In generous mode, non-allowlisted user transaction will be self sponsored', async ({helper}) => {
+    const owner = await helper.eth.createAccountWithBalance(donor);
+    const caller = await helper.eth.createAccountWithBalance(donor);
+    const helpers = helper.ethNativeContract.contractHelpers(owner);
+    const flipper = await helper.eth.deployFlipper(owner);
 
     await helpers.methods.selfSponsoredEnable(flipper.options.address).send();
 
     await helpers.methods.setSponsoringMode(flipper.options.address, SponsoringMode.Generous).send({from: owner});
     await helpers.methods.setSponsoringRateLimit(flipper.options.address, 0).send({from: owner});
 
-    await transferBalanceToEth(api, alice, flipper.options.address);
+    await helper.eth.transferBalanceFromSubstrate(donor, flipper.options.address);
 
-    const contractBalanceBefore = await ethBalanceViaSub(api, flipper.options.address);
-    const callerBalanceBefore = await ethBalanceViaSub(api, caller);
+    const contractBalanceBefore = await helper.balance.getSubstrate(await helper.address.ethToSubstrate(flipper.options.address));
+    const callerBalanceBefore = await helper.balance.getSubstrate(await helper.address.ethToSubstrate(caller));
 
     await flipper.methods.flip().send({from: caller});
     expect(await flipper.methods.getValue().call()).to.be.true;
 
     // Balance should be taken from sponsor instead of caller
-    const contractBalanceAfter = await ethBalanceViaSub(api, flipper.options.address);
-    const callerBalanceAfter = await ethBalanceViaSub(api, caller);
+    const contractBalanceAfter = await helper.balance.getSubstrate(await helper.address.ethToSubstrate(flipper.options.address));
+    const callerBalanceAfter = await helper.balance.getSubstrate(await helper.address.ethToSubstrate(caller));
     expect(contractBalanceAfter < contractBalanceBefore).to.be.true;
     expect(callerBalanceAfter).to.be.eq(callerBalanceBefore);
   });
 
-  itWeb3('Sponsoring is set, an address that has no UNQ can send a transaction and it works. Sponsor balance should decrease (allowlisted)', async ({api, web3, privateKeyWrapper}) => {
-    const owner = await createEthAccountWithBalance(api, web3, privateKeyWrapper);
-    const sponsor = await createEthAccountWithBalance(api, web3, privateKeyWrapper);
-    const caller = createEthAccount(web3);
-
-    const flipper = await deployFlipper(web3, owner);
+  itEth('Sponsoring is set, an address that has no UNQ can send a transaction and it works. Sponsor balance should decrease (allowlisted)', async ({helper}) => {
+    const owner = await helper.eth.createAccountWithBalance(donor);
+    const sponsor = await helper.eth.createAccountWithBalance(donor);
+    const caller = helper.eth.createAccount();
+    const helpers = helper.ethNativeContract.contractHelpers(owner);
+    const flipper = await helper.eth.deployFlipper(owner);
 
-    const helpers = contractHelpers(web3, owner);
     await helpers.methods.toggleAllowlist(flipper.options.address, true).send({from: owner});
     await helpers.methods.toggleAllowed(flipper.options.address, caller, true).send({from: owner});
 
@@ -378,51 +348,47 @@
     await helpers.methods.setSponsor(flipper.options.address, sponsor).send();
     await helpers.methods.confirmSponsorship(flipper.options.address).send({from: sponsor});
 
-    const sponsorBalanceBefore = await ethBalanceViaSub(api, sponsor);
+    const sponsorBalanceBefore = await helper.balance.getSubstrate(await helper.address.ethToSubstrate(sponsor));
     expect(sponsorBalanceBefore).to.be.not.equal('0');
 
     await flipper.methods.flip().send({from: caller});
     expect(await flipper.methods.getValue().call()).to.be.true;
 
     // Balance should be taken from flipper instead of caller
-    const sponsorBalanceAfter = await ethBalanceViaSub(api, sponsor);
+    const sponsorBalanceAfter = await helper.balance.getSubstrate(await helper.address.ethToSubstrate(sponsor));
     expect(sponsorBalanceAfter < sponsorBalanceBefore).to.be.true;
   });
 
-  itWeb3('Sponsoring is set, an address that has no UNQ can send a transaction and it works. Sponsor balance should not decrease (non-allowlisted)', async ({api, web3, privateKeyWrapper}) => {
-    const alice = privateKeyWrapper('//Alice');
-
-    const owner = await createEthAccountWithBalance(api, web3, privateKeyWrapper);
-    const caller = createEthAccount(web3);
-
-    const flipper = await deployFlipper(web3, owner);
+  itEth('Sponsoring is set, an address that has no UNQ can send a transaction and it works. Sponsor balance should not decrease (non-allowlisted)', async ({helper}) => {
+    const owner = await helper.eth.createAccountWithBalance(donor);
+    const caller = await helper.eth.createAccount();
+    const helpers = helper.ethNativeContract.contractHelpers(owner);
+    const flipper = await helper.eth.deployFlipper(owner);
 
-    const helpers = contractHelpers(web3, owner);
-
     await helpers.methods.setSponsoringMode(flipper.options.address, SponsoringMode.Allowlisted).send({from: owner});
     await helpers.methods.setSponsoringRateLimit(flipper.options.address, 0).send({from: owner});
 
-    await transferBalanceToEth(api, alice, flipper.options.address);
+    await helper.eth.transferBalanceFromSubstrate(donor, flipper.options.address);
 
-    const originalFlipperBalance = await web3.eth.getBalance(flipper.options.address);
+    const originalFlipperBalance = await helper.balance.getEthereum(flipper.options.address);
     expect(originalFlipperBalance).to.be.not.equal('0');
 
     await expect(flipper.methods.flip().send({from: caller})).to.be.rejectedWith(/InvalidTransaction::Payment/);
     expect(await flipper.methods.getValue().call()).to.be.false;
 
     // Balance should be taken from flipper instead of caller
-    const balanceAfter = await web3.eth.getBalance(flipper.options.address);
-    expect(+balanceAfter).to.be.equals(+originalFlipperBalance);
+    // FIXME the comment is wrong! What check should be here?
+    const balanceAfter = await helper.balance.getEthereum(flipper.options.address);
+    expect(balanceAfter).to.be.equals(originalFlipperBalance);
   });
 
-  itWeb3('Sponsoring is set, an address that has UNQ can send a transaction and it works. User balance should not change', async ({api, web3, privateKeyWrapper}) => {
-    const owner = await createEthAccountWithBalance(api, web3, privateKeyWrapper);
-    const sponsor = await createEthAccountWithBalance(api, web3, privateKeyWrapper);
-    const caller = await createEthAccountWithBalance(api, web3, privateKeyWrapper);
-
-    const flipper = await deployFlipper(web3, owner);
+  itEth('Sponsoring is set, an address that has UNQ can send a transaction and it works. User balance should not change', async ({helper}) => {
+    const owner = await helper.eth.createAccountWithBalance(donor);
+    const sponsor = await helper.eth.createAccountWithBalance(donor);
+    const caller = await helper.eth.createAccountWithBalance(donor);
+    const helpers = helper.ethNativeContract.contractHelpers(owner);
+    const flipper = await helper.eth.deployFlipper(owner);
 
-    const helpers = contractHelpers(web3, owner);
     await helpers.methods.toggleAllowlist(flipper.options.address, true).send({from: owner});
     await helpers.methods.toggleAllowed(flipper.options.address, caller, true).send({from: owner});
 
@@ -432,27 +398,26 @@
     await helpers.methods.setSponsor(flipper.options.address, sponsor).send();
     await helpers.methods.confirmSponsorship(flipper.options.address).send({from: sponsor});
 
-    const sponsorBalanceBefore = await ethBalanceViaSub(api, sponsor);
-    const callerBalanceBefore = await ethBalanceViaSub(api, caller);
+    const sponsorBalanceBefore = await helper.balance.getSubstrate(await helper.address.ethToSubstrate(sponsor));
+    const callerBalanceBefore = await helper.balance.getSubstrate(await helper.address.ethToSubstrate(caller));
 
     await flipper.methods.flip().send({from: caller});
     expect(await flipper.methods.getValue().call()).to.be.true;
 
-    const sponsorBalanceAfter = await ethBalanceViaSub(api, sponsor);
-    const callerBalanceAfter = await ethBalanceViaSub(api, caller);
+    const sponsorBalanceAfter = await helper.balance.getSubstrate(await helper.address.ethToSubstrate(sponsor));
+    const callerBalanceAfter = await helper.balance.getSubstrate(await helper.address.ethToSubstrate(caller));
     expect(sponsorBalanceAfter < sponsorBalanceBefore).to.be.true;
     expect(callerBalanceAfter).to.be.equals(callerBalanceBefore);
   });
 
-  itWeb3('Sponsoring is limited, with setContractRateLimit. The limitation is working if transactions are sent more often, the sender pays the commission.', async ({api, web3, privateKeyWrapper}) => {
-    const owner = await createEthAccountWithBalance(api, web3, privateKeyWrapper);
-    const sponsor = await createEthAccountWithBalance(api, web3, privateKeyWrapper);
-    const caller = await createEthAccountWithBalance(api, web3, privateKeyWrapper);
-    const originalCallerBalance = await web3.eth.getBalance(caller);
-
-    const flipper = await deployFlipper(web3, owner);
-
-    const helpers = contractHelpers(web3, owner);
+  itEth('Sponsoring is limited, with setContractRateLimit. The limitation is working if transactions are sent more often, the sender pays the commission.', async ({helper}) => {
+    const owner = await helper.eth.createAccountWithBalance(donor);
+    const sponsor = await helper.eth.createAccountWithBalance(donor);
+    const caller = await helper.eth.createAccountWithBalance(donor);
+    const helpers = helper.ethNativeContract.contractHelpers(owner);
+    const flipper = await helper.eth.deployFlipper(owner);
+    
+    const originalCallerBalance = await helper.balance.getEthereum(caller);
     await helpers.methods.toggleAllowlist(flipper.options.address, true).send({from: owner});
     await helpers.methods.toggleAllowed(flipper.options.address, caller, true).send({from: owner});
 
@@ -462,34 +427,36 @@
     await helpers.methods.setSponsor(flipper.options.address, sponsor).send();
     await helpers.methods.confirmSponsorship(flipper.options.address).send({from: sponsor});
 
-    const originalFlipperBalance = await web3.eth.getBalance(sponsor);
+    const originalFlipperBalance = await helper.balance.getEthereum(sponsor);
     expect(originalFlipperBalance).to.be.not.equal('0');
 
     await flipper.methods.flip().send({from: caller});
     expect(await flipper.methods.getValue().call()).to.be.true;
-    expect(await web3.eth.getBalance(caller)).to.be.equals(originalCallerBalance);
+    expect(await helper.balance.getEthereum(caller)).to.be.equals(originalCallerBalance);
 
-    const newFlipperBalance = await web3.eth.getBalance(sponsor);
+    const newFlipperBalance = await helper.balance.getEthereum(sponsor);
     expect(newFlipperBalance).to.be.not.equals(originalFlipperBalance);
 
     await flipper.methods.flip().send({from: caller});
-    expect(await web3.eth.getBalance(sponsor)).to.be.equal(newFlipperBalance);
-    expect(await web3.eth.getBalance(caller)).to.be.not.equals(originalCallerBalance);
+    expect(await helper.balance.getEthereum(sponsor)).to.be.equal(newFlipperBalance);
+    expect(await helper.balance.getEthereum(caller)).to.be.not.equals(originalCallerBalance);
   });
 
   // TODO: Find a way to calculate default rate limit
-  itWeb3('Default rate limit equals 7200', async ({api, web3, privateKeyWrapper}) => {
-    const owner = await createEthAccountWithBalance(api, web3, privateKeyWrapper);
-    const flipper = await deployFlipper(web3, owner);
-    const helpers = contractHelpers(web3, owner);
+  itEth('Default rate limit equals 7200', async ({helper}) => {
+    const owner = await helper.eth.createAccountWithBalance(donor);
+    const helpers = helper.ethNativeContract.contractHelpers(owner);
+    const flipper = await helper.eth.deployFlipper(owner);
+
     expect(await helpers.methods.sponsoringRateLimit(flipper.options.address).call()).to.be.equals('7200');
   });
 });
 
 describe('Sponsoring Fee Limit', () => {
+  let donor: IKeyringPair;
+  let alice: IKeyringPair;
+  let DEFAULT_GAS: number;
 
-  let testContract: CompiledContract;
-  
   function compileTestContract() {
     if (!testContract) {
       const input = {
@@ -537,46 +504,67 @@
     return testContract;
   }
   
-  async function deployTestContract(web3: Web3, owner: string) {
+  async function deployTestContract(helper: EthUniqueHelper, owner: string) {
+    const web3 = helper.getWeb3();
     const compiled = compileTestContract();
     const testContract = new web3.eth.Contract(compiled.abi, undefined, {
       data: compiled.object,
       from: owner,
-      ...GAS_ARGS,
+      gas: DEFAULT_GAS,
     });
     return await testContract.deploy({data: compiled.object}).send({from: owner});
   }
 
-  itWeb3('Default fee limit', async ({api, web3, privateKeyWrapper}) => {
-    const owner = await createEthAccountWithBalance(api, web3, privateKeyWrapper);
-    const flipper = await deployFlipper(web3, owner);
-    const helpers = contractHelpers(web3, owner);
+  before(async () => {
+    await usingEthPlaygrounds(async (helper, privateKey) => {
+      donor = privateKey('//Alice');
+      DEFAULT_GAS = helper.eth.DEFAULT_GAS;
+    });
+  });
+
+  beforeEach(async () => {
+    await usingPlaygrounds(async (helper) => {
+      [alice] = await helper.arrange.createAccounts([1000n], donor);
+    });
+  });
+
+  let testContract: CompiledContract;
+  
+
+
+  itEth('Default fee limit', async ({helper}) => {
+    const owner = await helper.eth.createAccountWithBalance(donor);
+    const helpers = helper.ethNativeContract.contractHelpers(owner);
+    const flipper = await helper.eth.deployFlipper(owner);
+
     expect(await helpers.methods.sponsoringFeeLimit(flipper.options.address).call()).to.be.equals('115792089237316195423570985008687907853269984665640564039457584007913129639935');
   });
 
-  itWeb3('Set fee limit', async ({api, web3, privateKeyWrapper}) => {
-    const owner = await createEthAccountWithBalance(api, web3, privateKeyWrapper);
-    const flipper = await deployFlipper(web3, owner);
-    const helpers = contractHelpers(web3, owner);
+  itEth('Set fee limit', async ({helper}) => {
+    const owner = await helper.eth.createAccountWithBalance(donor);
+    const helpers = helper.ethNativeContract.contractHelpers(owner);
+    const flipper = await helper.eth.deployFlipper(owner);
+
     await helpers.methods.setSponsoringFeeLimit(flipper.options.address, 100).send();
     expect(await helpers.methods.sponsoringFeeLimit(flipper.options.address).call()).to.be.equals('100');
   });
 
-  itWeb3('Negative test - set fee limit by non-owner', async ({api, web3, privateKeyWrapper}) => {
-    const owner = await createEthAccountWithBalance(api, web3, privateKeyWrapper);
-    const stranger = await createEthAccountWithBalance(api, web3, privateKeyWrapper);
-    const flipper = await deployFlipper(web3, owner);
-    const helpers = contractHelpers(web3, owner);
+  itEth('Negative test - set fee limit by non-owner', async ({helper}) => {
+    const owner = await helper.eth.createAccountWithBalance(donor);
+    const stranger = await helper.eth.createAccountWithBalance(donor);
+    const helpers = helper.ethNativeContract.contractHelpers(owner);
+    const flipper = await helper.eth.deployFlipper(owner);
+
     await expect(helpers.methods.setSponsoringFeeLimit(flipper.options.address, 100).send({from: stranger})).to.be.rejected;
   });
 
-  itWeb3('Negative test - check that eth transactions exceeding fee limit are not executed', async ({api, web3, privateKeyWrapper}) => {
-    const sponsor = await createEthAccountWithBalance(api, web3, privateKeyWrapper);
-    const owner = await createEthAccountWithBalance(api, web3, privateKeyWrapper);
-    const user = await createEthAccountWithBalance(api, web3, privateKeyWrapper);
+  itEth('Negative test - check that eth transactions exceeding fee limit are not executed', async ({helper}) => {
+    const owner = await helper.eth.createAccountWithBalance(donor);
+    const sponsor = await helper.eth.createAccountWithBalance(donor);
+    const user = await helper.eth.createAccountWithBalance(donor);
+    const helpers = helper.ethNativeContract.contractHelpers(owner);
 
-    const testContract = await deployTestContract(web3, owner);
-    const helpers = contractHelpers(web3, owner);
+    const testContract = await deployTestContract(helper, owner);
     
     await helpers.methods.setSponsoringMode(testContract.options.address, SponsoringMode.Generous).send({from: owner});
     await helpers.methods.setSponsoringRateLimit(testContract.options.address, 0).send({from: owner});
@@ -584,24 +572,24 @@
     await helpers.methods.setSponsor(testContract.options.address, sponsor).send();
     await helpers.methods.confirmSponsorship(testContract.options.address).send({from: sponsor});
 
-    const gasPrice = BigInt(await web3.eth.getGasPrice());
+    const gasPrice = BigInt(await helper.getWeb3().eth.getGasPrice());
 
     await helpers.methods.setSponsoringFeeLimit(testContract.options.address, 2_000_000n * gasPrice).send();
 
-    const originalUserBalance = await web3.eth.getBalance(user);
+    const originalUserBalance = await helper.balance.getEthereum(user);
     await testContract.methods.test(100).send({from: user, gas: 2_000_000});
-    expect(await web3.eth.getBalance(user)).to.be.equal(originalUserBalance);
+    expect(await helper.balance.getEthereum(user)).to.be.equal(originalUserBalance);
 
     await testContract.methods.test(100).send({from: user, gas: 2_100_000});
-    expect(await web3.eth.getBalance(user)).to.not.be.equal(originalUserBalance);
+    expect(await helper.balance.getEthereum(user)).to.not.be.equal(originalUserBalance);
   });
 
-  itWeb3('Negative test - check that evm.call transactions exceeding fee limit are not executed', async ({api, web3, privateKeyWrapper}) => {
-    const sponsor = await createEthAccountWithBalance(api, web3, privateKeyWrapper);
-    const owner = await createEthAccountWithBalance(api, web3, privateKeyWrapper);
+  itEth('Negative test - check that evm.call transactions exceeding fee limit are not executed', async ({helper, privateKey}) => {
+    const owner = await helper.eth.createAccountWithBalance(donor);
+    const sponsor = await helper.eth.createAccountWithBalance(donor);
+    const helpers = helper.ethNativeContract.contractHelpers(owner);
 
-    const testContract = await deployTestContract(web3, owner);
-    const helpers = contractHelpers(web3, owner);
+    const testContract = await deployTestContract(helper, owner);
     
     await helpers.methods.setSponsoringMode(testContract.options.address, SponsoringMode.Generous).send({from: owner});
     await helpers.methods.setSponsoringRateLimit(testContract.options.address, 0).send({from: owner});
@@ -609,43 +597,29 @@
     await helpers.methods.setSponsor(testContract.options.address, sponsor).send();
     await helpers.methods.confirmSponsorship(testContract.options.address).send({from: sponsor});
 
-    const gasPrice = BigInt(await web3.eth.getGasPrice());
+    const gasPrice = BigInt(await helper.getWeb3().eth.getGasPrice());
 
     await helpers.methods.setSponsoringFeeLimit(testContract.options.address, 2_000_000n * gasPrice).send();
 
-    const alice = privateKeyWrapper('//Alice');
-    const originalAliceBalance = (await api.query.system.account(alice.address)).data.free.toBigInt();
-    
-    await submitTransactionAsync(
+    const originalAliceBalance = await helper.balance.getSubstrate(alice.address);
+
+    await helper.eth.sendEVM(
       alice,
-      api.tx.evm.call(
-        subToEth(alice.address),
-        testContract.options.address,
-        testContract.methods.test(100).encodeABI(),
-        Uint8Array.from([]),
-        2_000_000n,
-        gasPrice,
-        null,
-        null,
-        [],
-      ),
+      testContract.options.address,
+      testContract.methods.test(100).encodeABI(),
+      '0',
+      2_000_000,
     );
-    expect((await api.query.system.account(alice.address)).data.free.toBigInt()).to.be.equal(originalAliceBalance);
+    // expect((await api.query.system.account(alice.address)).data.free.toBigInt()).to.be.equal(originalAliceBalance);
+    expect(await helper.balance.getSubstrate(alice.address)).to.be.equal(originalAliceBalance);
     
-    await submitTransactionAsync(
+    await helper.eth.sendEVM(
       alice,
-      api.tx.evm.call(
-        subToEth(alice.address),
-        testContract.options.address,
-        testContract.methods.test(100).encodeABI(),
-        Uint8Array.from([]),
-        2_100_000n,
-        gasPrice,
-        null,
-        null,
-        [],
-      ),
+      testContract.options.address,
+      testContract.methods.test(100).encodeABI(),
+      '0',
+      2_100_000,
     );
-    expect((await api.query.system.account(alice.address)).data.free.toBigInt()).to.not.be.equal(originalAliceBalance);
+    expect(await helper.balance.getSubstrate(alice.address)).to.not.be.equal(originalAliceBalance);
   });
 });
modifiedtests/src/eth/createNFTCollection.test.tsdiffbeforeafterboth
--- a/tests/src/eth/createNFTCollection.test.ts
+++ b/tests/src/eth/createNFTCollection.test.ts
@@ -17,8 +17,8 @@
 import {evmToAddress} from '@polkadot/util-crypto';
 import {IKeyringPair} from '@polkadot/types/types';
 import {expect, itEth, usingEthPlaygrounds} from './util/playgrounds';
-import {UNIQUE} from '../util/helpers';
 
+
 describe('Create NFT collection from EVM', () => {
   let donor: IKeyringPair;
 
@@ -65,7 +65,7 @@
 
     await collectionHelpers.methods
       .createNonfungibleCollection('A', 'A', 'A')
-      .send({value: Number(2n * UNIQUE)});
+      .send({value: Number(2n * helper.balance.getOneTokenNominal())});
     
     expect(await collectionHelpers.methods
       .isCollectionExist(expectedCollectionAddress)
@@ -147,10 +147,12 @@
 
 describe('(!negative tests!) Create NFT collection from EVM', () => {
   let donor: IKeyringPair;
+  let nominal: bigint;
 
   before(async function() {
-    await usingEthPlaygrounds(async (_helper, privateKey) => {
+    await usingEthPlaygrounds(async (helper, privateKey) => {
       donor = await privateKey({filename: __filename});
+      nominal = helper.balance.getOneTokenNominal();
     });
   });
 
@@ -165,7 +167,7 @@
 
       await expect(collectionHelper.methods
         .createNonfungibleCollection(collectionName, description, tokenPrefix)
-        .call({value: Number(2n * UNIQUE)})).to.be.rejectedWith('name is too long. Max length is ' + MAX_NAME_LENGTH);
+        .call({value: Number(2n * nominal)})).to.be.rejectedWith('name is too long. Max length is ' + MAX_NAME_LENGTH);
       
     }
     {
@@ -175,7 +177,7 @@
       const tokenPrefix = 'A';
       await expect(collectionHelper.methods
         .createNonfungibleCollection(collectionName, description, tokenPrefix)
-        .call({value: Number(2n * UNIQUE)})).to.be.rejectedWith('description is too long. Max length is ' + MAX_DESCRIPTION_LENGTH);
+        .call({value: Number(2n * nominal)})).to.be.rejectedWith('description is too long. Max length is ' + MAX_DESCRIPTION_LENGTH);
     }
     {
       const MAX_TOKEN_PREFIX_LENGTH = 16;
@@ -184,7 +186,7 @@
       const tokenPrefix = 'A'.repeat(MAX_TOKEN_PREFIX_LENGTH + 1);
       await expect(collectionHelper.methods
         .createNonfungibleCollection(collectionName, description, tokenPrefix)
-        .call({value: Number(2n * UNIQUE)})).to.be.rejectedWith('token_prefix is too long. Max length is ' + MAX_TOKEN_PREFIX_LENGTH);
+        .call({value: Number(2n * nominal)})).to.be.rejectedWith('token_prefix is too long. Max length is ' + MAX_TOKEN_PREFIX_LENGTH);
     }
   });
   
@@ -193,7 +195,7 @@
     const collectionHelper = helper.ethNativeContract.collectionHelpers(owner);
     await expect(collectionHelper.methods
       .createNonfungibleCollection('Peasantry', 'absolutely anything', 'CVE')
-      .call({value: Number(1n * UNIQUE)})).to.be.rejectedWith('Sent amount not equals to collection creation price (2000000000000000000)');
+      .call({value: Number(1n * nominal)})).to.be.rejectedWith('Sent amount not equals to collection creation price (2000000000000000000)');
   });
 
   itEth('(!negative test!) Check owner', async ({helper}) => {
modifiedtests/src/eth/createRFTCollection.test.tsdiffbeforeafterboth
--- a/tests/src/eth/createRFTCollection.test.ts
+++ b/tests/src/eth/createRFTCollection.test.ts
@@ -18,8 +18,8 @@
 import {IKeyringPair} from '@polkadot/types/types';
 import {Pallets, requirePalletsOrSkip} from '../util/playgrounds';
 import {expect, itEth, usingEthPlaygrounds} from './util/playgrounds';
-import {UNIQUE} from '../util/helpers';
 
+
 describe('Create RFT collection from EVM', () => {
   let donor: IKeyringPair;
 
@@ -66,7 +66,7 @@
 
     await collectionHelpers.methods
       .createRFTCollection('A', 'A', 'A')
-      .send({value: Number(2n * UNIQUE)});
+      .send({value: Number(2n * helper.balance.getOneTokenNominal())});
     
     expect(await collectionHelpers.methods
       .isCollectionExist(expectedCollectionAddress)
@@ -148,11 +148,13 @@
 
 describe('(!negative tests!) Create RFT collection from EVM', () => {
   let donor: IKeyringPair;
+  let nominal: bigint;
 
   before(async function() {
     await usingEthPlaygrounds(async (helper, privateKey) => {
       requirePalletsOrSkip(this, helper, [Pallets.ReFungible]);
       donor = await privateKey({filename: __filename});
+      nominal = helper.balance.getOneTokenNominal();
     });
   });
 
@@ -167,7 +169,7 @@
 
       await expect(collectionHelper.methods
         .createRFTCollection(collectionName, description, tokenPrefix)
-        .call({value: Number(2n * UNIQUE)})).to.be.rejectedWith('name is too long. Max length is ' + MAX_NAME_LENGTH);
+        .call({value: Number(2n * nominal)})).to.be.rejectedWith('name is too long. Max length is ' + MAX_NAME_LENGTH);
     }
     {
       const MAX_DESCRIPTION_LENGTH = 256;
@@ -176,7 +178,7 @@
       const tokenPrefix = 'A';
       await expect(collectionHelper.methods
         .createRFTCollection(collectionName, description, tokenPrefix)
-        .call({value: Number(2n * UNIQUE)})).to.be.rejectedWith('description is too long. Max length is ' + MAX_DESCRIPTION_LENGTH);
+        .call({value: Number(2n * nominal)})).to.be.rejectedWith('description is too long. Max length is ' + MAX_DESCRIPTION_LENGTH);
     }
     {
       const MAX_TOKEN_PREFIX_LENGTH = 16;
@@ -185,7 +187,7 @@
       const tokenPrefix = 'A'.repeat(MAX_TOKEN_PREFIX_LENGTH + 1);
       await expect(collectionHelper.methods
         .createRFTCollection(collectionName, description, tokenPrefix)
-        .call({value: Number(2n * UNIQUE)})).to.be.rejectedWith('token_prefix is too long. Max length is ' + MAX_TOKEN_PREFIX_LENGTH);
+        .call({value: Number(2n * nominal)})).to.be.rejectedWith('token_prefix is too long. Max length is ' + MAX_TOKEN_PREFIX_LENGTH);
     }
   });
   
@@ -194,7 +196,7 @@
     const collectionHelper = helper.ethNativeContract.collectionHelpers(owner);
     await expect(collectionHelper.methods
       .createRFTCollection('Peasantry', 'absolutely anything', 'TWIW')
-      .call({value: Number(1n * UNIQUE)})).to.be.rejectedWith('Sent amount not equals to collection creation price (2000000000000000000)');
+      .call({value: Number(1n * nominal)})).to.be.rejectedWith('Sent amount not equals to collection creation price (2000000000000000000)');
   });
 
   itEth('(!negative test!) Check owner', async ({helper}) => {
modifiedtests/src/eth/marketplace/marketplace.test.tsdiffbeforeafterboth
--- a/tests/src/eth/marketplace/marketplace.test.ts
+++ b/tests/src/eth/marketplace/marketplace.test.ts
@@ -14,215 +14,208 @@
 // You should have received a copy of the GNU General Public License
 // along with Unique Network. If not, see <http://www.gnu.org/licenses/>.
 
+import {usingPlaygrounds} from './../../util/playgrounds/index';
+import {IKeyringPair} from '@polkadot/types/types';
 import {readFile} from 'fs/promises';
-import {getBalanceSingle} from '../../substrate/get-balance';
-import {
-  addToAllowListExpectSuccess, 
-  confirmSponsorshipExpectSuccess, 
-  createCollectionExpectSuccess, 
-  createItemExpectSuccess, 
-  getTokenOwner,
-  setCollectionLimitsExpectSuccess, 
-  setCollectionSponsorExpectSuccess, 
-  transferExpectSuccess, 
-  transferFromExpectSuccess,
-  transferBalanceTo,
-} from '../../util/helpers';
-import {collectionIdToAddress, contractHelpers, createEthAccountWithBalance, executeEthTxOnSub, GAS_ARGS, itWeb3, SponsoringMode, subToEth, subToEthLowercase, transferBalanceToEth} from '../util/helpers';
-import {evmToAddress} from '@polkadot/util-crypto';
-import nonFungibleAbi from '../nonFungibleAbi.json';
+import {itEth, expect, SponsoringMode} from '../util/playgrounds';
 
-import {expect} from 'chai';
+describe('Matcher contract usage', () => {
+  const PRICE = 2000n;
+  let donor: IKeyringPair;
+  let alice: IKeyringPair;
+  let aliceMirror: string;
+  let aliceDoubleMirror: string;
+  let seller: IKeyringPair;
+  let sellerMirror: string;
+
+  before(async () => {
+    await usingPlaygrounds(async (_helper, privateKey) => {
+      donor = privateKey('//Alice');
+    }); 
+  });
+
+  beforeEach(async () => {
+    await usingPlaygrounds(async (helper, privateKey) => {
+      [alice] = await helper.arrange.createAccounts([10000n], donor);
+      aliceMirror = helper.address.substrateToEth(alice.address).toLowerCase();
+      aliceDoubleMirror = helper.address.ethToSubstrate(aliceMirror);
+      seller = privateKey(`//Seller/${Date.now()}`);
+      sellerMirror = helper.address.substrateToEth(seller.address).toLowerCase();
 
-const PRICE = 2000n;
+      await helper.balance.transferToSubstrate(donor, aliceDoubleMirror, 10_000_000_000_000_000_000n);
+    });
+  });
 
-describe('Matcher contract usage', () => {
-  itWeb3('With UNQ', async ({api, web3, privateKeyWrapper}) => {
-    const alice = privateKeyWrapper('//Alice');
-    const sponsor = await createEthAccountWithBalance(api, web3, privateKeyWrapper);
-    const matcherOwner = await createEthAccountWithBalance(api, web3, privateKeyWrapper);
+  itEth('With UNQ', async ({helper}) => {
+    const web3 = helper.getWeb3();
+    const matcherOwner = await helper.eth.createAccountWithBalance(donor);
     const matcherContract = new web3.eth.Contract(JSON.parse((await readFile(`${__dirname}/MarketPlace.abi`)).toString()), undefined, {
       from: matcherOwner,
-      ...GAS_ARGS,
+      gas: helper.eth.DEFAULT_GAS,
     });
     const matcher = await matcherContract.deploy({data: (await readFile(`${__dirname}/MarketPlace.bin`)).toString(), arguments:[matcherOwner]}).send({from: matcherOwner});
-    const helpers = contractHelpers(web3, matcherOwner);
+
+    const sponsor = await helper.eth.createAccountWithBalance(donor);
+    const helpers = helper.ethNativeContract.contractHelpers(matcherOwner);
     await helpers.methods.setSponsoringMode(matcher.options.address, SponsoringMode.Allowlisted).send({from: matcherOwner});
     await helpers.methods.setSponsoringRateLimit(matcher.options.address, 1).send({from: matcherOwner});
     
     await helpers.methods.setSponsor(matcher.options.address, sponsor).send({from: matcherOwner});
     await helpers.methods.confirmSponsorship(matcher.options.address).send({from: sponsor});
-
-    const collectionId = await createCollectionExpectSuccess({mode: {type: 'NFT'}});
-    await setCollectionLimitsExpectSuccess(alice, collectionId, {sponsorApproveTimeout: 1});
-    const evmCollection = new web3.eth.Contract(nonFungibleAbi as any, collectionIdToAddress(collectionId), {from: matcherOwner});
-    await setCollectionSponsorExpectSuccess(collectionId, alice.address);
-    await transferBalanceToEth(api, alice, subToEth(alice.address));
-    await confirmSponsorshipExpectSuccess(collectionId);
 
-    await helpers.methods.toggleAllowed(matcher.options.address, subToEth(alice.address), true).send({from: matcherOwner});
-    await addToAllowListExpectSuccess(alice, collectionId, evmToAddress(subToEth(alice.address)));
-
-    const seller = privateKeyWrapper(`//Seller/${Date.now()}`);
-    await helpers.methods.toggleAllowed(matcher.options.address, subToEth(seller.address), true).send({from: matcherOwner});
+    const collection = await helper.nft.mintCollection(alice, {limits: {sponsorApproveTimeout: 1}, pendingSponsor: alice.address});
+    await collection.confirmSponsorship(alice);
+    await collection.addToAllowList(alice, {Substrate: aliceDoubleMirror});
+    const evmCollection = helper.ethNativeContract.collection(helper.ethAddress.fromCollectionId(collection.collectionId), 'nft');
+    await helper.eth.transferBalanceFromSubstrate(donor, aliceMirror);
 
-    const tokenId = await createItemExpectSuccess(alice, collectionId, 'NFT', seller.address);
+    await helpers.methods.toggleAllowed(matcher.options.address, aliceMirror, true).send({from: matcherOwner});
+    await helpers.methods.toggleAllowed(matcher.options.address, sellerMirror, true).send({from: matcherOwner});
 
-    // To transfer item to matcher it first needs to be transfered to EVM account of bob
-    await transferExpectSuccess(collectionId, tokenId, seller, {Ethereum: subToEth(seller.address)});
+    const token = await collection.mintToken(alice, {Ethereum: sellerMirror});
 
     // Token is owned by seller initially
-    expect(await getTokenOwner(api, collectionId, tokenId)).to.be.deep.equal({Ethereum: subToEthLowercase(seller.address)});
+    expect(await token.getOwner()).to.be.deep.equal({Ethereum: sellerMirror});
 
     // Ask
     {
-      await executeEthTxOnSub(web3, api, seller, evmCollection, m => m.approve(matcher.options.address, tokenId));
-      await executeEthTxOnSub(web3, api, seller, matcher, m => m.addAsk(PRICE, '0x0000000000000000000000000000000000000001', evmCollection.options.address, tokenId));
+      await helper.eth.sendEVM(seller, evmCollection.options.address, evmCollection.methods.approve(matcher.options.address, token.tokenId).encodeABI(), '0');
+      await helper.eth.sendEVM(seller, matcher.options.address, matcher.methods.addAsk(PRICE, '0x0000000000000000000000000000000000000001', evmCollection.options.address, token.tokenId).encodeABI(), '0');
     }
 
     // Token is transferred to matcher
-    expect(await getTokenOwner(api, collectionId, tokenId)).to.be.deep.equal({Ethereum: matcher.options.address.toLowerCase()});
+    expect(await token.getOwner()).to.be.deep.equal({Ethereum: matcher.options.address.toLowerCase()});
 
     // Buy
     {
-      const sellerBalanceBeforePurchase = await getBalanceSingle(api, seller.address);
-      await executeEthTxOnSub(web3, api, alice, matcher, m => m.buy(evmCollection.options.address, tokenId), {value: PRICE});
-      expect(await getBalanceSingle(api, seller.address) - sellerBalanceBeforePurchase === PRICE);
+      const sellerBalanceBeforePurchase = await helper.balance.getSubstrate(seller.address);
+      await helper.eth.sendEVM(alice, matcher.options.address, matcher.methods.buy(evmCollection.options.address, token.tokenId).encodeABI(), PRICE.toString());
+      expect(await helper.balance.getSubstrate(seller.address) - sellerBalanceBeforePurchase === PRICE);
     }
 
     // Token is transferred to evm account of alice
-    expect(await getTokenOwner(api, collectionId, tokenId)).to.be.deep.equal({Ethereum: subToEthLowercase(alice.address)});
+    expect(await token.getOwner()).to.be.deep.equal({Ethereum: aliceMirror});
 
     // Transfer token to substrate side of alice
-    await transferFromExpectSuccess(collectionId, tokenId, alice, {Ethereum: subToEth(alice.address)}, {Substrate: alice.address});
+    await token.transferFrom(alice, {Ethereum: aliceMirror}, {Substrate: alice.address});
 
     // Token is transferred to substrate account of alice, seller received funds
-    expect(await getTokenOwner(api, collectionId, tokenId)).to.be.deep.equal({Substrate: alice.address});
+    expect(await token.getOwner()).to.be.deep.equal({Substrate: alice.address});
   });
 
-
-  itWeb3('With escrow', async ({api, web3, privateKeyWrapper}) => {
-    const alice = privateKeyWrapper('//Alice');
-    const sponsor = await createEthAccountWithBalance(api, web3, privateKeyWrapper);
-    const matcherOwner = await createEthAccountWithBalance(api, web3, privateKeyWrapper);
-    const escrow = await createEthAccountWithBalance(api, web3, privateKeyWrapper);
+  itEth('With escrow', async ({helper}) => {
+    const web3 = helper.getWeb3();
+    const matcherOwner = await helper.eth.createAccountWithBalance(donor);
     const matcherContract = new web3.eth.Contract(JSON.parse((await readFile(`${__dirname}/MarketPlace.abi`)).toString()), undefined, {
       from: matcherOwner,
-      ...GAS_ARGS,
+      gas: helper.eth.DEFAULT_GAS,
     });
     const matcher = await matcherContract.deploy({data: (await readFile(`${__dirname}/MarketPlace.bin`)).toString(), arguments: [matcherOwner]}).send({from: matcherOwner, gas: 10000000});
+
+    const sponsor = await helper.eth.createAccountWithBalance(donor);
+    const escrow = await helper.eth.createAccountWithBalance(donor);
     await matcher.methods.setEscrow(escrow).send({from: matcherOwner});
-    const helpers = contractHelpers(web3, matcherOwner);
+    const helpers = helper.ethNativeContract.contractHelpers(matcherOwner);
     await helpers.methods.setSponsoringMode(matcher.options.address, SponsoringMode.Allowlisted).send({from: matcherOwner});
     await helpers.methods.setSponsoringRateLimit(matcher.options.address, 1).send({from: matcherOwner});
     
     await helpers.methods.setSponsor(matcher.options.address, sponsor).send({from: matcherOwner});
     await helpers.methods.confirmSponsorship(matcher.options.address).send({from: sponsor});
 
-    const collectionId = await createCollectionExpectSuccess({mode: {type: 'NFT'}});
-    await setCollectionLimitsExpectSuccess(alice, collectionId, {sponsorApproveTimeout: 1});
-    const evmCollection = new web3.eth.Contract(nonFungibleAbi as any, collectionIdToAddress(collectionId), {from: matcherOwner});
-    await setCollectionSponsorExpectSuccess(collectionId, alice.address);
-    await transferBalanceToEth(api, alice, subToEth(alice.address));
-    await confirmSponsorshipExpectSuccess(collectionId);
+    const collection = await helper.nft.mintCollection(alice, {limits: {sponsorApproveTimeout: 1}, pendingSponsor: alice.address});
+    await collection.confirmSponsorship(alice);
+    await collection.addToAllowList(alice, {Substrate: aliceDoubleMirror});
+    const evmCollection = helper.ethNativeContract.collection(helper.ethAddress.fromCollectionId(collection.collectionId), 'nft');
+    await helper.eth.transferBalanceFromSubstrate(donor, aliceMirror);
 
-    await helpers.methods.toggleAllowed(matcher.options.address, subToEth(alice.address), true).send({from: matcherOwner});
-    await addToAllowListExpectSuccess(alice, collectionId, evmToAddress(subToEth(alice.address)));
 
-    const seller = privateKeyWrapper(`//Seller/${Date.now()}`);
-    await helpers.methods.toggleAllowed(matcher.options.address, subToEth(seller.address), true).send({from: matcherOwner});
+    await helpers.methods.toggleAllowed(matcher.options.address, aliceMirror, true).send({from: matcherOwner});
 
-    const tokenId = await createItemExpectSuccess(alice, collectionId, 'NFT', seller.address);
+    await helpers.methods.toggleAllowed(matcher.options.address, sellerMirror, true).send({from: matcherOwner});
 
-    // To transfer item to matcher it first needs to be transfered to EVM account of bob
-    await transferExpectSuccess(collectionId, tokenId, seller, {Ethereum: subToEth(seller.address)});
+    const token = await collection.mintToken(alice, {Ethereum: sellerMirror});
 
     // Token is owned by seller initially
-    expect(await getTokenOwner(api, collectionId, tokenId)).to.be.deep.equal({Ethereum: subToEthLowercase(seller.address)});
+    expect(await token.getOwner()).to.be.deep.equal({Ethereum: sellerMirror});
 
     // Ask
     {
-      await executeEthTxOnSub(web3, api, seller, evmCollection, m => m.approve(matcher.options.address, tokenId));
-      await executeEthTxOnSub(web3, api, seller, matcher, m => m.addAsk(PRICE, '0x0000000000000000000000000000000000000001', evmCollection.options.address, tokenId));
+      await helper.eth.sendEVM(seller, evmCollection.options.address, evmCollection.methods.approve(matcher.options.address, token.tokenId).encodeABI(), '0');
+      await helper.eth.sendEVM(seller, matcher.options.address, matcher.methods.addAsk(PRICE, '0x0000000000000000000000000000000000000001', evmCollection.options.address, token.tokenId).encodeABI(), '0');
     }
 
     // Token is transferred to matcher
-    expect(await getTokenOwner(api, collectionId, tokenId)).to.be.deep.equal({Ethereum: matcher.options.address.toLowerCase()});
+    expect(await token.getOwner()).to.be.deep.equal({Ethereum: matcher.options.address.toLowerCase()});
 
     // Give buyer KSM
-    await matcher.methods.depositKSM(PRICE, subToEth(alice.address)).send({from: escrow});
+    await matcher.methods.depositKSM(PRICE, aliceMirror).send({from: escrow});
 
     // Buy
     {
-      expect(await matcher.methods.balanceKSM(subToEth(seller.address)).call()).to.be.equal('0');
-      expect(await matcher.methods.balanceKSM(subToEth(alice.address)).call()).to.be.equal(PRICE.toString());
+      expect(await matcher.methods.balanceKSM(sellerMirror).call()).to.be.equal('0');
+      expect(await matcher.methods.balanceKSM(aliceMirror).call()).to.be.equal(PRICE.toString());
 
-      await executeEthTxOnSub(web3, api, alice, matcher, m => m.buyKSM(evmCollection.options.address, tokenId, subToEth(alice.address), subToEth(alice.address)));
+      await helper.eth.sendEVM(alice, matcher.options.address, matcher.methods.buyKSM(evmCollection.options.address, token.tokenId, aliceMirror, aliceMirror).encodeABI(), '0');
 
       // Price is removed from buyer balance, and added to seller
-      expect(await matcher.methods.balanceKSM(subToEth(alice.address)).call()).to.be.equal('0');
-      expect(await matcher.methods.balanceKSM(subToEth(seller.address)).call()).to.be.equal(PRICE.toString());
+      expect(await matcher.methods.balanceKSM(aliceMirror).call()).to.be.equal('0');
+      expect(await matcher.methods.balanceKSM(sellerMirror).call()).to.be.equal(PRICE.toString());
     }
 
     // Token is transferred to evm account of alice
-    expect(await getTokenOwner(api, collectionId, tokenId)).to.be.deep.equal({Ethereum: subToEthLowercase(alice.address)});
+    expect(await token.getOwner()).to.be.deep.equal({Ethereum: aliceMirror});
 
     // Transfer token to substrate side of alice
-    await transferFromExpectSuccess(collectionId, tokenId, alice, {Ethereum: subToEth(alice.address)}, {Substrate: alice.address});
+    await token.transferFrom(alice, {Ethereum: aliceMirror}, {Substrate: alice.address});
 
     // Token is transferred to substrate account of alice, seller received funds
-    expect(await getTokenOwner(api, collectionId, tokenId)).to.be.deep.equal({Substrate: alice.address});
+    expect(await token.getOwner()).to.be.deep.equal({Substrate: alice.address});
   });
 
-
-  itWeb3('Sell tokens from substrate user via EVM contract', async ({api, web3, privateKeyWrapper}) => {
-    const alice = privateKeyWrapper('//Alice');
-    const matcherOwner = await createEthAccountWithBalance(api, web3, privateKeyWrapper);
+  itEth('Sell tokens from substrate user via EVM contract', async ({helper}) => {
+    const web3 = helper.getWeb3();
+    const matcherOwner = await helper.eth.createAccountWithBalance(donor);
     const matcherContract = new web3.eth.Contract(JSON.parse((await readFile(`${__dirname}/MarketPlace.abi`)).toString()), undefined, {
       from: matcherOwner,
-      ...GAS_ARGS,
+      gas: helper.eth.DEFAULT_GAS,
     });
     const matcher = await matcherContract.deploy({data: (await readFile(`${__dirname}/MarketPlace.bin`)).toString(), arguments:[matcherOwner]}).send({from: matcherOwner});
-    await transferBalanceToEth(api, alice, matcher.options.address);
 
-    const collectionId = await createCollectionExpectSuccess({mode: {type: 'NFT'}});
-    await setCollectionLimitsExpectSuccess(alice, collectionId, {sponsorApproveTimeout: 1});
-    const evmCollection = new web3.eth.Contract(nonFungibleAbi as any, collectionIdToAddress(collectionId), {from: matcherOwner});
+    await helper.eth.transferBalanceFromSubstrate(donor, matcher.options.address);
+
+    const collection = await helper.nft.mintCollection(alice, {limits: {sponsorApproveTimeout: 1}});
+    const evmCollection = helper.ethNativeContract.collection(helper.ethAddress.fromCollectionId(collection.collectionId), 'nft');
 
-    const seller = privateKeyWrapper(`//Seller/${Date.now()}`);
-    await transferBalanceTo(api, alice, seller.address);
+    await helper.balance.transferToSubstrate(donor, seller.address, 100_000_000_000_000_000_000n);
     
-    const tokenId = await createItemExpectSuccess(alice, collectionId, 'NFT', seller.address);
-
-    // To transfer item to matcher it first needs to be transfered to EVM account of bob
-    await transferExpectSuccess(collectionId, tokenId, seller, {Ethereum: subToEth(seller.address)});
+    const token = await collection.mintToken(alice, {Ethereum: sellerMirror});
 
     // Token is owned by seller initially
-    expect(await getTokenOwner(api, collectionId, tokenId)).to.be.deep.equal({Ethereum: subToEthLowercase(seller.address)});
+    expect(await token.getOwner()).to.be.deep.equal({Ethereum: sellerMirror});
 
     // Ask
     {
-      await executeEthTxOnSub(web3, api, seller, evmCollection, m => m.approve(matcher.options.address, tokenId));
-      await executeEthTxOnSub(web3, api, seller, matcher, m => m.addAsk(PRICE, '0x0000000000000000000000000000000000000001', evmCollection.options.address, tokenId));
+      await helper.eth.sendEVM(seller, evmCollection.options.address, evmCollection.methods.approve(matcher.options.address, token.tokenId).encodeABI(), '0');
+      await helper.eth.sendEVM(seller, matcher.options.address, matcher.methods.addAsk(PRICE, '0x0000000000000000000000000000000000000001', evmCollection.options.address, token.tokenId).encodeABI(), '0');
     }
 
     // Token is transferred to matcher
-    expect(await getTokenOwner(api, collectionId, tokenId)).to.be.deep.equal({Ethereum: matcher.options.address.toLowerCase()});
+    expect(await token.getOwner()).to.be.deep.equal({Ethereum: matcher.options.address.toLowerCase()});
 
     // Buy
     {
-      const sellerBalanceBeforePurchase = await getBalanceSingle(api, seller.address);
-      await executeEthTxOnSub(web3, api, alice, matcher, m => m.buy(evmCollection.options.address, tokenId), {value: PRICE});
-      expect(await getBalanceSingle(api, seller.address) - sellerBalanceBeforePurchase === PRICE);
+      const sellerBalanceBeforePurchase = await helper.balance.getSubstrate(seller.address);
+      await helper.eth.sendEVM(alice, matcher.options.address, matcher.methods.buy(evmCollection.options.address, token.tokenId).encodeABI(), PRICE.toString());
+      expect(await helper.balance.getSubstrate(seller.address) - sellerBalanceBeforePurchase === PRICE);
     }
 
     // Token is transferred to evm account of alice
-    expect(await getTokenOwner(api, collectionId, tokenId)).to.be.deep.equal({Ethereum: subToEthLowercase(alice.address)});
+    expect(await token.getOwner()).to.be.deep.equal({Ethereum: aliceMirror});
 
     // Transfer token to substrate side of alice
-    await transferFromExpectSuccess(collectionId, tokenId, alice, {Ethereum: subToEth(alice.address)}, {Substrate: alice.address});
+    await token.transferFrom(alice, {Ethereum: aliceMirror}, {Substrate: alice.address});
 
     // Token is transferred to substrate account of alice, seller received funds
-    expect(await getTokenOwner(api, collectionId, tokenId)).to.be.deep.equal({Substrate: alice.address});
+    expect(await token.getOwner()).to.be.deep.equal({Substrate: alice.address});
   });
 });
modifiedtests/src/eth/nonFungible.test.tsdiffbeforeafterboth
--- a/tests/src/eth/nonFungible.test.ts
+++ b/tests/src/eth/nonFungible.test.ts
@@ -17,8 +17,8 @@
 import {itEth, usingEthPlaygrounds, expect, EthUniqueHelper} from './util/playgrounds';
 import {IKeyringPair} from '@polkadot/types/types';
 import {Contract} from 'web3-eth-contract';
-import {UNIQUE} from '../util/helpers';
 
+
 describe('NFT: Information getting', () => {
   let donor: IKeyringPair;
   let alice: IKeyringPair;
@@ -84,7 +84,7 @@
     const receiver = helper.eth.createAccount();
 
     const collectionHelper = helper.ethNativeContract.collectionHelpers(owner);
-    let result = await collectionHelper.methods.createERC721MetadataCompatibleCollection('Mint collection', 'a', 'b', tokenPrefix).send({value: Number(2n * UNIQUE)});
+    let result = await collectionHelper.methods.createERC721MetadataCompatibleCollection('Mint collection', 'a', 'b', tokenPrefix).send({value: Number(2n * helper.balance.getOneTokenNominal())});
     const collectionAddress = helper.ethAddress.normalizeAddress(result.events.CollectionCreated.returnValues.collectionId);
     const contract = helper.ethNativeContract.collection(collectionAddress, 'nft', owner);
     
modifiedtests/src/eth/proxy/fungibleProxy.test.tsdiffbeforeafterboth
--- a/tests/src/eth/proxy/fungibleProxy.test.ts
+++ b/tests/src/eth/proxy/fungibleProxy.test.ts
@@ -14,7 +14,6 @@
 // You should have received a copy of the GNU General Public License
 // along with Unique Network. If not, see <http://www.gnu.org/licenses/>.
 
-import {GAS_ARGS, normalizeEvents} from '../util/helpers';
 import {expect} from 'chai';
 import {readFile} from 'fs/promises';
 import {IKeyringPair} from '@polkadot/types/types';
@@ -26,7 +25,7 @@
   const web3 = helper.getWeb3();
   const proxyContract = new web3.eth.Contract(JSON.parse((await readFile(`${__dirname}/UniqueFungibleProxy.abi`)).toString()), undefined, {
     from: owner,
-    ...GAS_ARGS,
+    gas: helper.eth.DEFAULT_GAS,
   });
   const proxy = await proxyContract.deploy({data: (await readFile(`${__dirname}/UniqueFungibleProxy.bin`)).toString(), arguments: [wrapped.options.address]}).send({from: owner});
   return proxy;
@@ -94,7 +93,7 @@
 
     {
       const result = await contract.methods.approve(spender, 100).send({from: caller});
-      const events = normalizeEvents(result.events);
+      const events = helper.eth.normalizeEvents(result.events);
 
       expect(events).to.be.deep.equal([
         {
@@ -131,7 +130,7 @@
 
     {
       const result = await contract.methods.transferFrom(owner, receiver, 49).send({from: caller});
-      const events = normalizeEvents(result.events);
+      const events = helper.eth.normalizeEvents(result.events);
       expect(events).to.be.deep.equal([
         {
           address,
@@ -177,7 +176,7 @@
 
     {
       const result = await contract.methods.transfer(receiver, 50).send({from: caller});
-      const events = normalizeEvents(result.events);
+      const events = helper.eth.normalizeEvents(result.events);
       expect(events).to.be.deep.equal([
         {
           address,
modifiedtests/src/eth/proxy/nonFungibleProxy.test.tsdiffbeforeafterboth
--- a/tests/src/eth/proxy/nonFungibleProxy.test.ts
+++ b/tests/src/eth/proxy/nonFungibleProxy.test.ts
@@ -14,11 +14,10 @@
 // You should have received a copy of the GNU General Public License
 // along with Unique Network. If not, see <http://www.gnu.org/licenses/>.
 
-import {GAS_ARGS, itWeb3, normalizeEvents} from '../util/helpers';
-import {expect} from 'chai';
 import {readFile} from 'fs/promises';
 import {IKeyringPair} from '@polkadot/types/types';
-import {EthUniqueHelper, itEth, usingEthPlaygrounds} from '../util/playgrounds';
+import {EthUniqueHelper, itEth, usingEthPlaygrounds, expect} from '../util/playgrounds';
+
 
 async function proxyWrap(helper: EthUniqueHelper, wrapped: any, donor: IKeyringPair) {
   // Proxy owner has no special privilegies, we don't need to reuse them
@@ -26,7 +25,7 @@
   const web3 = helper.getWeb3();
   const proxyContract = new web3.eth.Contract(JSON.parse((await readFile(`${__dirname}/UniqueNFTProxy.abi`)).toString()), undefined, {
     from: owner,
-    ...GAS_ARGS,
+    gas: helper.eth.DEFAULT_GAS,
   });
   const proxy = await proxyContract.deploy({data: (await readFile(`${__dirname}/UniqueNFTProxy.bin`)).toString(), arguments: [wrapped.options.address]}).send({from: owner});
   return proxy;
@@ -119,7 +118,7 @@
         nextTokenId,
         'Test URI',
       ).send({from: caller});
-      const events = normalizeEvents(result.events);
+      const events = helper.eth.normalizeEvents(result.events);
       events[0].address = events[0].address.toLocaleLowerCase();
 
       expect(events).to.be.deep.equal([
@@ -139,20 +138,16 @@
   });
 
   //TODO: CORE-302 add eth methods
-  itWeb3.skip('Can perform mintBulk()', async () => {
-    /*
-    const collection = await createCollectionExpectSuccess({
-      mode: {type: 'NFT'},
-    });
-    const alice = privateKeyWrapper('//Alice');
+  itEth.skip('Can perform mintBulk()', async ({helper}) => {
+    const collection = await helper.nft.mintCollection(donor, {name: 'New', description: 'New collection', tokenPrefix: 'NEW'});
 
-    const caller = await createEthAccountWithBalance(api, web3, privateKeyWrapper);
-    const receiver = createEthAccount(web3);
+    const caller = await helper.eth.createAccountWithBalance(donor, 30n);
+    const receiver = helper.eth.createAccount();
 
-    const address = collectionIdToAddress(collection);
-    const contract = await proxyWrap(api, web3, new web3.eth.Contract(nonFungibleAbi as any, address, {from: caller, ...GAS_ARGS}), privateKeyWrapper);
-    const changeAdminTx = api.tx.unique.addCollectionAdmin(collection, {Ethereum: contract.options.address});
-    await submitTransactionAsync(alice, changeAdminTx);
+    const address = helper.ethAddress.fromCollectionId(collection.collectionId);
+    const evmCollection = helper.ethNativeContract.collection(address, 'nft', caller);
+    const contract = await proxyWrap(helper, evmCollection, donor);
+    await collection.addAdmin(donor, {Ethereum: contract.options.address});
 
     {
       const nextTokenId = await contract.methods.nextTokenId().call();
@@ -165,7 +160,7 @@
           [+nextTokenId + 2, 'Test URI 2'],
         ],
       ).send({from: caller});
-      const events = normalizeEvents(result.events);
+      const events = helper.eth.normalizeEvents(result.events);
 
       expect(events).to.be.deep.equal([
         {
@@ -201,7 +196,6 @@
       expect(await contract.methods.tokenURI(+nextTokenId + 1).call()).to.be.equal('Test URI 1');
       expect(await contract.methods.tokenURI(+nextTokenId + 2).call()).to.be.equal('Test URI 2');
     }
-    */
   });
 
   itEth('Can perform burn()', async ({helper}) => {
@@ -216,7 +210,7 @@
 
     {
       const result = await contract.methods.burn(tokenId).send({from: caller});
-      const events = normalizeEvents(result.events);
+      const events = helper.eth.normalizeEvents(result.events);
 
       expect(events).to.be.deep.equal([
         {
@@ -243,8 +237,8 @@
     const {tokenId} = await collection.mintToken(alice, {Ethereum: contract.options.address});
 
     {
-      const result = await contract.methods.approve(spender, tokenId).send({from: caller, ...GAS_ARGS});
-      const events = normalizeEvents(result.events);
+      const result = await contract.methods.approve(spender, tokenId).send({from: caller, gas: helper.eth.DEFAULT_GAS});
+      const events = helper.eth.normalizeEvents(result.events);
 
       expect(events).to.be.deep.equal([
         {
@@ -276,7 +270,7 @@
 
     {
       const result = await contract.methods.transferFrom(owner, receiver, tokenId).send({from: caller});
-      const events = normalizeEvents(result.events);
+      const events = helper.eth.normalizeEvents(result.events);
       expect(events).to.be.deep.equal([
         {
           address,
@@ -313,7 +307,7 @@
 
     {
       const result = await contract.methods.transfer(receiver, tokenId).send({from: caller});
-      const events = normalizeEvents(result.events);
+      const events = helper.eth.normalizeEvents(result.events);
       expect(events).to.be.deep.equal([
         {
           address,
modifiedtests/src/eth/reFungibleToken.test.tsdiffbeforeafterboth
--- a/tests/src/eth/reFungibleToken.test.ts
+++ b/tests/src/eth/reFungibleToken.test.ts
@@ -18,8 +18,8 @@
 import {EthUniqueHelper, expect, itEth, usingEthPlaygrounds} from './util/playgrounds';
 import {IKeyringPair} from '@polkadot/types/types';
 import {Contract} from 'web3-eth-contract';
-import {UNIQUE} from '../util/helpers';
 
+
 describe('Refungible token: Information getting', () => {
   let donor: IKeyringPair;
   let alice: IKeyringPair;
@@ -81,7 +81,7 @@
     const receiver = helper.eth.createAccount();
 
     const collectionHelper = helper.ethNativeContract.collectionHelpers(owner);
-    let result = await collectionHelper.methods.createERC721MetadataCompatibleCollection('Mint collection', 'a', 'b', tokenPrefix).send({value: Number(2n * UNIQUE)});
+    let result = await collectionHelper.methods.createERC721MetadataCompatibleCollection('Mint collection', 'a', 'b', tokenPrefix).send({value: Number(2n * helper.balance.getOneTokenNominal())});
     const collectionAddress = helper.ethAddress.normalizeAddress(result.events.CollectionCreated.returnValues.collectionId);
     const contract = helper.ethNativeContract.collection(collectionAddress, 'rft', owner);
     
deletedtests/src/eth/scheduling.test.tsdiffbeforeafterboth
--- a/tests/src/eth/scheduling.test.ts
+++ /dev/null
@@ -1,58 +0,0 @@
-// Copyright 2019-2022 Unique Network (Gibraltar) Ltd.
-// This file is part of Unique Network.
-
-// Unique Network is free software: you can redistribute it and/or modify
-// it under the terms of the GNU General Public License as published by
-// the Free Software Foundation, either version 3 of the License, or
-// (at your option) any later version.
-
-// Unique Network is distributed in the hope that it will be useful,
-// but WITHOUT ANY WARRANTY; without even the implied warranty of
-// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
-// GNU General Public License for more details.
-
-// You should have received a copy of the GNU General Public License
-// along with Unique Network. If not, see <http://www.gnu.org/licenses/>.
-
-import {expect} from 'chai';
-import {createEthAccountWithBalance, deployFlipper, GAS_ARGS, itWeb3, subToEth, transferBalanceToEth} from './util/helpers';
-import {scheduleExpectSuccess, waitNewBlocks, requirePallets, Pallets} from '../util/helpers';
-
-describe('Scheduing EVM smart contracts', () => {
-  before(async function() {
-    await requirePallets(this, [Pallets.Scheduler]);
-  });
-
-  itWeb3('Successfully schedules and periodically executes an EVM contract', async ({api, web3, privateKeyWrapper}) => {
-    const deployer = await createEthAccountWithBalance(api, web3, privateKeyWrapper);
-    const flipper = await deployFlipper(web3, deployer);
-    const initialValue = await flipper.methods.getValue().call();
-    const alice = privateKeyWrapper('//Alice');
-    await transferBalanceToEth(api, alice, subToEth(alice.address));
-
-    {
-      const tx = api.tx.evm.call(
-        subToEth(alice.address),
-        flipper.options.address,
-        flipper.methods.flip().encodeABI(),
-        '0',
-        GAS_ARGS.gas,
-        await web3.eth.getGasPrice(),
-        null,
-        null,
-        [],
-      );
-      const waitForBlocks = 4;
-      const periodBlocks = 2;
-
-      await scheduleExpectSuccess(tx, alice, waitForBlocks, '0x' + '0'.repeat(32), periodBlocks, 2);
-      expect(await flipper.methods.getValue().call()).to.be.equal(initialValue);
-      
-      await waitNewBlocks(waitForBlocks - 1);
-      expect(await flipper.methods.getValue().call()).to.be.not.equal(initialValue);
-  
-      await waitNewBlocks(periodBlocks);
-      expect(await flipper.methods.getValue().call()).to.be.equal(initialValue);
-    }
-  });
-});
modifiedtests/src/eth/sponsoring.test.tsdiffbeforeafterboth
--- a/tests/src/eth/sponsoring.test.ts
+++ b/tests/src/eth/sponsoring.test.ts
@@ -14,20 +14,31 @@
 // You should have received a copy of the GNU General Public License
 // along with Unique Network. If not, see <http://www.gnu.org/licenses/>.
 
-import {expect} from 'chai';
-import {contractHelpers, createEthAccount, createEthAccountWithBalance, deployCollector, deployFlipper, itWeb3, SponsoringMode} from './util/helpers';
+import {IKeyringPair} from '@polkadot/types/types';
+import {itEth, expect, SponsoringMode} from '../eth/util/playgrounds';
+import {usingPlaygrounds} from './../util/playgrounds/index';
 
 describe('EVM sponsoring', () => {
-  itWeb3('Fee is deducted from contract if sponsoring is enabled', async ({api, web3, privateKeyWrapper}) => {
-    const owner = await createEthAccountWithBalance(api, web3, privateKeyWrapper);
-    const sponsor = await createEthAccountWithBalance(api, web3, privateKeyWrapper);
-    const caller = createEthAccount(web3);
-    const originalCallerBalance = await web3.eth.getBalance(caller);
-    expect(originalCallerBalance).to.be.equal('0');
+  let donor: IKeyringPair;
 
-    const flipper = await deployFlipper(web3, owner);
+  before(async () => {
+    await usingPlaygrounds(async (helper, privateKey) => {
+      donor = privateKey('//Alice');
+    });
+  });
+
+  itEth('Fee is deducted from contract if sponsoring is enabled', async ({helper}) => {
+    const owner = await helper.eth.createAccountWithBalance(donor);
+    const sponsor = await helper.eth.createAccountWithBalance(donor);
+    const caller = helper.eth.createAccount();
+    const originalCallerBalance = await helper.balance.getEthereum(caller);
+
+    expect(originalCallerBalance).to.be.equal(0n);
+
+    const flipper = await helper.eth.deployFlipper(owner);
+
+    const helpers = helper.ethNativeContract.contractHelpers(owner);
 
-    const helpers = contractHelpers(web3, owner);
     await helpers.methods.toggleAllowlist(flipper.options.address, true).send({from: owner});
     await helpers.methods.toggleAllowed(flipper.options.address, caller, true).send({from: owner});
     
@@ -39,27 +50,29 @@
     await helpers.methods.setSponsoringRateLimit(flipper.options.address, 0).send({from: owner});
     expect(await helpers.methods.sponsoringEnabled(flipper.options.address).call()).to.be.true;
 
-    const originalSponsorBalance = await web3.eth.getBalance(sponsor);
-    expect(originalSponsorBalance).to.be.not.equal('0');
+    const originalSponsorBalance = await helper.balance.getEthereum(sponsor);
+    expect(originalSponsorBalance).to.be.not.equal(0n);
 
     await flipper.methods.flip().send({from: caller});
     expect(await flipper.methods.getValue().call()).to.be.true;
 
     // Balance should be taken from flipper instead of caller
-    expect(await web3.eth.getBalance(caller)).to.be.equals(originalCallerBalance);
-    expect(await web3.eth.getBalance(sponsor)).to.be.not.equals(originalSponsorBalance);
+    expect(await helper.balance.getEthereum(caller)).to.be.equal(originalCallerBalance);
+    expect(await helper.balance.getEthereum(sponsor)).to.be.not.equal(originalSponsorBalance);
   });
 
-  itWeb3('...but this doesn\'t applies to payable value', async ({api, web3, privateKeyWrapper}) => {
-    const owner = await createEthAccountWithBalance(api, web3, privateKeyWrapper);
-    const sponsor = await createEthAccountWithBalance(api, web3, privateKeyWrapper);
-    const caller = await createEthAccountWithBalance(api, web3, privateKeyWrapper);
-    const originalCallerBalance = await web3.eth.getBalance(caller);
-    expect(originalCallerBalance).to.be.not.equal('0');
+  itEth('...but this doesn\'t applies to payable value', async ({helper}) => {
+    const owner = await helper.eth.createAccountWithBalance(donor);
+    const sponsor = await helper.eth.createAccountWithBalance(donor);
+    const caller = await helper.eth.createAccountWithBalance(donor);
+    const originalCallerBalance = await helper.balance.getEthereum(caller);
+
+    expect(originalCallerBalance).to.be.not.equal(0n);
+
+    const collector = await helper.eth.deployCollectorContract(owner);
 
-    const collector = await deployCollector(web3, owner);
+    const helpers = helper.ethNativeContract.contractHelpers(owner);
 
-    const helpers = contractHelpers(web3, owner);
     await helpers.methods.toggleAllowlist(collector.options.address, true).send({from: owner});
     await helpers.methods.toggleAllowed(collector.options.address, caller, true).send({from: owner});
 
@@ -71,14 +84,14 @@
     await helpers.methods.setSponsor(collector.options.address, sponsor).send({from: owner});
     await helpers.methods.confirmSponsorship(collector.options.address).send({from: sponsor});
 
-    const originalSponsorBalance = await web3.eth.getBalance(sponsor);
-    expect(originalSponsorBalance).to.be.not.equal('0');
+    const originalSponsorBalance = await helper.balance.getEthereum(sponsor);
+    expect(originalSponsorBalance).to.be.not.equal(0n);
 
     await collector.methods.giveMoney().send({from: caller, value: '10000'});
 
     // Balance will be taken from both caller (value) and from collector (fee)
-    expect(await web3.eth.getBalance(caller)).to.be.equals((BigInt(originalCallerBalance) - 10000n).toString());
-    expect(await web3.eth.getBalance(sponsor)).to.be.not.equals(originalSponsorBalance);
+    expect(await helper.balance.getEthereum(caller)).to.be.equals((originalCallerBalance - 10000n));
+    expect(await helper.balance.getEthereum(sponsor)).to.be.not.equals(originalSponsorBalance);
     expect(await collector.methods.getCollected().call()).to.be.equal('10000');
   });
 });
modifiedtests/src/eth/tokenProperties.test.tsdiffbeforeafterboth
--- a/tests/src/eth/tokenProperties.test.ts
+++ b/tests/src/eth/tokenProperties.test.ts
@@ -14,7 +14,7 @@
 // You should have received a copy of the GNU General Public License
 // along with Unique Network. If not, see <http://www.gnu.org/licenses/>.
 
-import {itEth, usingEthPlaygrounds, expect, cartesian} from './util/playgrounds';
+import {itEth, usingEthPlaygrounds, expect} from './util/playgrounds';
 import {IKeyringPair} from '@polkadot/types/types';
 
 describe('EVM token properties', () => {
@@ -48,16 +48,16 @@
 
   itEth('Can be set', async({helper}) => {
     const caller = await helper.eth.createAccountWithBalance(donor);
-    const collection = await helper.nft.mintCollection(alice);
+    const collection = await helper.nft.mintCollection(alice, {
+      tokenPropertyPermissions: [{
+        key: 'testKey',
+        permission: {
+          collectionAdmin: true,
+        },
+      }],
+    });
     const token = await collection.mintToken(alice);
 
-    await collection.setTokenPropertyPermissions(alice, [{
-      key: 'testKey',
-      permission: {
-        collectionAdmin: true,
-      },
-    }]);
-
     await collection.addAdmin(alice, {Ethereum: caller});
 
     const address = helper.ethAddress.fromCollectionId(collection.collectionId);
@@ -71,16 +71,17 @@
 
   itEth('Can be deleted', async({helper}) => {
     const caller = await helper.eth.createAccountWithBalance(donor);
-    const collection = await helper.nft.mintCollection(alice);
+    const collection = await helper.nft.mintCollection(alice, {
+      tokenPropertyPermissions: [{
+        key: 'testKey',
+        permission: {
+          mutable: true,
+          collectionAdmin: true,
+        },
+      }],
+    });
+    
     const token = await collection.mintToken(alice);
-
-    await collection.setTokenPropertyPermissions(alice, [{
-      key: 'testKey',
-      permission: {
-        mutable: true,
-        collectionAdmin: true,
-      },
-    }]);
     await token.setProperties(alice, [{key: 'testKey', value: 'testValue'}]);
 
     await collection.addAdmin(alice, {Ethereum: caller});
@@ -96,15 +97,16 @@
 
   itEth('Can be read', async({helper}) => {
     const caller = helper.eth.createAccount();
-    const collection = await helper.nft.mintCollection(alice);
+    const collection = await helper.nft.mintCollection(alice, {
+      tokenPropertyPermissions: [{
+        key: 'testKey',
+        permission: {
+          collectionAdmin: true,
+        },
+      }],
+    });
+  
     const token = await collection.mintToken(alice);
-
-    await collection.setTokenPropertyPermissions(alice, [{
-      key: 'testKey',
-      permission: {
-        collectionAdmin: true,
-      },
-    }]);
     await token.setProperties(alice, [{key: 'testKey', value: 'testValue'}]);
 
     const address = helper.ethAddress.fromCollectionId(collection.collectionId);
@@ -114,3 +116,15 @@
     expect(value).to.equal(helper.getWeb3().utils.toHex('testValue'));
   });
 });
+
+
+type ElementOf<A> = A extends readonly (infer T)[] ? T : never;
+function* cartesian<T extends Array<Array<any>>, R extends Array<any>>(internalRest: [...R], ...args: [...T]): Generator<[...R, ...{[K in keyof T]: ElementOf<T[K]>}]> {
+  if(args.length === 0) {
+    yield internalRest as any;
+    return;
+  }
+  for(const value of args[0]) {
+    yield* cartesian([...internalRest, value], ...args.slice(1)) as any;
+  }
+}
deletedtests/src/eth/util/helpers.d.tsdiffbeforeafterboth
--- a/tests/src/eth/util/helpers.d.ts
+++ /dev/null
@@ -1,17 +0,0 @@
-// Copyright 2019-2022 Unique Network (Gibraltar) Ltd.
-// This file is part of Unique Network.
-
-// Unique Network is free software: you can redistribute it and/or modify
-// it under the terms of the GNU General Public License as published by
-// the Free Software Foundation, either version 3 of the License, or
-// (at your option) any later version.
-
-// Unique Network is distributed in the hope that it will be useful,
-// but WITHOUT ANY WARRANTY; without even the implied warranty of
-// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
-// GNU General Public License for more details.
-
-// You should have received a copy of the GNU General Public License
-// along with Unique Network. If not, see <http://www.gnu.org/licenses/>.
-
-declare module 'solc';
\ No newline at end of file
deletedtests/src/eth/util/helpers.tsdiffbeforeafterboth
--- a/tests/src/eth/util/helpers.ts
+++ /dev/null
@@ -1,451 +0,0 @@
-// Copyright 2019-2022 Unique Network (Gibraltar) Ltd.
-// This file is part of Unique Network.
-
-// Unique Network is free software: you can redistribute it and/or modify
-// it under the terms of the GNU General Public License as published by
-// the Free Software Foundation, either version 3 of the License, or
-// (at your option) any later version.
-
-// Unique Network is distributed in the hope that it will be useful,
-// but WITHOUT ANY WARRANTY; without even the implied warranty of
-// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
-// GNU General Public License for more details.
-
-// You should have received a copy of the GNU General Public License
-// along with Unique Network. If not, see <http://www.gnu.org/licenses/>.
-
-// eslint-disable-next-line @typescript-eslint/triple-slash-reference
-/// <reference path="helpers.d.ts" />
-
-import {ApiPromise} from '@polkadot/api';
-import {IKeyringPair} from '@polkadot/types/types';
-import {addressToEvm, evmToAddress} from '@polkadot/util-crypto';
-import {expect} from 'chai';
-import * as solc from 'solc';
-import Web3 from 'web3';
-import config from '../../config';
-import getBalance from '../../substrate/get-balance';
-import usingApi, {submitTransactionAsync} from '../../substrate/substrate-api';
-import waitNewBlocks from '../../substrate/wait-new-blocks';
-import {CollectionMode, CrossAccountId, getDetailedCollectionInfo, getGenericResult, UNIQUE} from '../../util/helpers';
-import collectionHelpersAbi from '../collectionHelpersAbi.json';
-import fungibleAbi from '../fungibleAbi.json';
-import nonFungibleAbi from '../nonFungibleAbi.json';
-import refungibleAbi from '../reFungibleAbi.json';
-import refungibleTokenAbi from '../reFungibleTokenAbi.json';
-import contractHelpersAbi from './contractHelpersAbi.json';
-
-export const GAS_ARGS = {gas: 2500000};
-
-export enum SponsoringMode {
-  Disabled = 0,
-  Allowlisted = 1,
-  Generous = 2,
-}
-
-let web3Connected = false;
-export async function usingWeb3<T>(cb: (web3: Web3) => Promise<T> | T): Promise<T> {
-  if (web3Connected) throw new Error('do not nest usingWeb3 calls');
-  web3Connected = true;
-
-  const provider = new Web3.providers.WebsocketProvider(config.substrateUrl);
-  const web3 = new Web3(provider);
-
-  try {
-    return await cb(web3);
-  } finally {
-    // provider.disconnect(3000, 'normal disconnect');
-    provider.connection.close();
-    web3Connected = false;
-  }
-}
-
-function encodeIntBE(v: number): number[] {
-  if (v >= 0xffffffff || v < 0) throw new Error('id overflow');
-  return [
-    v >> 24,
-    (v >> 16) & 0xff,
-    (v >> 8) & 0xff,
-    v & 0xff,
-  ];
-}
-
-export async function getCollectionAddressFromResult(api: ApiPromise, result: any) {
-  const collectionIdAddress = normalizeAddress(result.events.CollectionCreated.returnValues.collectionId);
-  const collectionId = collectionIdFromAddress(collectionIdAddress);  
-  const collection = (await getDetailedCollectionInfo(api, collectionId))!;
-  return {collectionIdAddress, collectionId, collection};
-}
-
-export function collectionIdToAddress(collection: number): string {
-  const buf = Buffer.from([0x17, 0xc4, 0xe6, 0x45, 0x3c, 0xc4, 0x9a, 0xaa, 0xae, 0xac, 0xa8, 0x94, 0xe6, 0xd9, 0x68, 0x3e,
-    ...encodeIntBE(collection),
-  ]);
-  return Web3.utils.toChecksumAddress('0x' + buf.toString('hex'));
-}
-export function collectionIdFromAddress(address: string): number {
-  if (!address.startsWith('0x'))
-    throw 'address not starts with "0x"';
-  if (address.length > 42)
-    throw 'address length is more than 20 bytes';
-  return Number('0x' + address.substring(address.length - 8));
-}
-  
-export function normalizeAddress(address: string): string {
-  return '0x' + address.substring(address.length - 40);
-}
-
-export function tokenIdToAddress(collection: number, token: number): string {
-  const buf = Buffer.from([0xf8, 0x23, 0x8c, 0xcf, 0xff, 0x8e, 0xd8, 0x87, 0x46, 0x3f, 0xd5, 0xe0,
-    ...encodeIntBE(collection),
-    ...encodeIntBE(token),
-  ]);
-  return Web3.utils.toChecksumAddress('0x' + buf.toString('hex'));
-}
-
-export function tokenIdFromAddress(address: string) {
-  if (!address.startsWith('0x'))
-    throw 'address not starts with "0x"';
-  if (address.length > 42)
-    throw 'address length is more than 20 bytes';
-  return {
-    collectionId: Number('0x' + address.substring(address.length - 16, address.length - 8)),
-    tokenId: Number('0x' + address.substring(address.length - 8)),
-  };
-}
-
-export function tokenIdToCross(collection: number, token: number): CrossAccountId {
-  return {
-    Ethereum: tokenIdToAddress(collection, token),
-  };
-}
-
-export function createEthAccount(web3: Web3) {
-  const account = web3.eth.accounts.create();
-  web3.eth.accounts.wallet.add(account.privateKey);
-  return account.address;
-}
-
-export async function createEthAccountWithBalance(api: ApiPromise, web3: Web3, privateKeyWrapper: (account: string) => IKeyringPair) {
-  const alice = privateKeyWrapper('//Alice');
-  const account = createEthAccount(web3);
-  await transferBalanceToEth(api, alice, account);
-
-  return account;
-}
-
-export async function transferBalanceToEth(api: ApiPromise, source: IKeyringPair, target: string, amount = 1000n * UNIQUE) {
-  const tx = api.tx.balances.transfer(evmToAddress(target), amount);
-  const events = await submitTransactionAsync(source, tx);
-  const result = getGenericResult(events);
-  expect(result.success).to.be.true;
-}
-
-export async function createRFTCollection(api: ApiPromise, web3: Web3, owner: string) {
-  const collectionHelper = evmCollectionHelpers(web3, owner);
-  const result = await collectionHelper.methods
-    .createRFTCollection('A', 'B', 'C')
-    .send({value: Number(2n * UNIQUE)});
-  return await getCollectionAddressFromResult(api, result);
-}
-
-
-export async function createNonfungibleCollection(api: ApiPromise, web3: Web3, owner: string) {
-  const collectionHelper = evmCollectionHelpers(web3, owner);
-  const result = await collectionHelper.methods
-    .createNonfungibleCollection('A', 'B', 'C')
-    .send({value: Number(2n * UNIQUE)});
-  return await getCollectionAddressFromResult(api, result);
-}
-
-export function uniqueNFT(web3: Web3, address: string, owner: string) {
-  return new web3.eth.Contract(nonFungibleAbi as any, address, {
-    from: owner,
-    ...GAS_ARGS,
-  });
-}
-
-export function uniqueRefungible(web3: Web3, collectionAddress: string, owner: string) {
-  return new web3.eth.Contract(refungibleAbi as any, collectionAddress, {
-    from: owner,
-    ...GAS_ARGS,
-  });
-}
-
-export function uniqueRefungibleToken(web3: Web3, tokenAddress: string, owner: string | undefined = undefined) {
-  return new web3.eth.Contract(refungibleTokenAbi as any, tokenAddress, {
-    from: owner,
-    ...GAS_ARGS,
-  });
-}
-
-export async function itWeb3(name: string, cb: (apis: { web3: Web3, api: ApiPromise, privateKeyWrapper: (account: string) => IKeyringPair }) => any, opts: { only?: boolean, skip?: boolean } = {}) {
-  let i: any = it;
-  if (opts.only) i = i.only;
-  else if (opts.skip) i = i.skip;
-  i(name, async () => {
-    await usingApi(async (api, privateKeyWrapper) => {
-      await usingWeb3(async web3 => {
-        await cb({api, web3, privateKeyWrapper});
-      });
-    });
-  });
-}
-itWeb3.only = (name: string, cb: (apis: { web3: Web3, api: ApiPromise, privateKeyWrapper: (account: string) => IKeyringPair }) => any) => itWeb3(name, cb, {only: true});
-itWeb3.skip = (name: string, cb: (apis: { web3: Web3, api: ApiPromise, privateKeyWrapper: (account: string) => IKeyringPair }) => any) => itWeb3(name, cb, {skip: true});
-
-export async function generateSubstrateEthPair(web3: Web3) {
-  const account = web3.eth.accounts.create();
-  evmToAddress(account.address);
-}
-
-type NormalizedEvent = {
-    address: string,
-    event: string,
-    args: { [key: string]: string }
-};
-
-export function normalizeEvents(events: any): NormalizedEvent[] {
-  const output = [];
-  for (const key of Object.keys(events)) {
-    if (key.match(/^[0-9]+$/)) {
-      output.push(events[key]);
-    } else if (Array.isArray(events[key])) {
-      output.push(...events[key]);
-    } else {
-      output.push(events[key]);
-    }
-  }
-  output.sort((a, b) => a.logIndex - b.logIndex);
-  return output.map(({address, event, returnValues}) => {
-    const args: { [key: string]: string } = {};
-    for (const key of Object.keys(returnValues)) {
-      if (!key.match(/^[0-9]+$/)) {
-        args[key] = returnValues[key];
-      }
-    }
-    return {
-      address,
-      event,
-      args,
-    };
-  });
-}
-
-export async function recordEvents(contract: any, action: () => Promise<void>): Promise<NormalizedEvent[]> {
-  const out: any = [];
-  contract.events.allEvents((_: any, event: any) => {
-    out.push(event);
-  });
-  await action();
-  return normalizeEvents(out);
-}
-
-export function subToEthLowercase(eth: string): string {
-  const bytes = addressToEvm(eth);
-  return '0x' + Buffer.from(bytes).toString('hex');
-}
-
-export function subToEth(eth: string): string {
-  return Web3.utils.toChecksumAddress(subToEthLowercase(eth));
-}
-
-export interface CompiledContract {
-  abi: any,
-  object: string,
-}
-
-export function compileContract(name: string, src: string) : CompiledContract {
-  const out = JSON.parse(solc.compile(JSON.stringify({
-    language: 'Solidity',
-    sources: {
-      [`${name}.sol`]: {
-        content: `
-          // SPDX-License-Identifier: UNLICENSED
-          pragma solidity ^0.8.6;
-
-          ${src}
-        `,
-      },
-    },
-    settings: {
-      outputSelection: {
-        '*': {
-          '*': ['*'],
-        },
-      },
-    },
-  }))).contracts[`${name}.sol`][name];
-
-  return {
-    abi: out.abi,
-    object: '0x' + out.evm.bytecode.object,
-  };
-}
-
-export async function deployFlipper(web3: Web3, deployer: string) {
-  const compiled = compileContract('Flipper', `
-    contract Flipper {
-      bool value = false;
-      function flip() public {
-        value = !value;
-      }
-      function getValue() public view returns (bool) {
-        return value;
-      }
-    }
-  `);
-  const flipperContract = new web3.eth.Contract(compiled.abi, undefined, {
-    data: compiled.object,
-    from: deployer,
-    ...GAS_ARGS,
-  });
-  const flipper = await flipperContract.deploy({data: compiled.object}).send({from: deployer});
-
-  return flipper;
-}
-
-export async function deployCollector(web3: Web3, deployer: string) {
-  const compiled = compileContract('Collector', `
-    contract Collector {
-      uint256 collected;
-      fallback() external payable {
-        giveMoney();
-      }
-      function giveMoney() public payable {
-        collected += msg.value;
-      }
-      function getCollected() public view returns (uint256) {
-        return collected;
-      }
-      function getUnaccounted() public view returns (uint256) {
-        return address(this).balance - collected;
-      }
-
-      function withdraw(address payable target) public {
-        target.transfer(collected);
-        collected = 0;
-      }
-    }
-  `);
-  const collectorContract = new web3.eth.Contract(compiled.abi, undefined, {
-    data: compiled.object,
-    from: deployer,
-    ...GAS_ARGS,
-  });
-  const collector = await collectorContract.deploy({data: compiled.object}).send({from: deployer});
-
-  return collector;
-}
-
-/** 
- * pallet evm_contract_helpers
- * @param web3 
- * @param caller - eth address
- * @returns 
- */
-export function contractHelpers(web3: Web3, caller: string) {
-  return new web3.eth.Contract(contractHelpersAbi as any, '0x842899ECF380553E8a4de75bF534cdf6fBF64049', {from: caller, ...GAS_ARGS});
-}
-
-/** 
- * evm collection helper
- * @param web3 
- * @param caller - eth address
- * @returns 
- */
-export function evmCollectionHelpers(web3: Web3, caller: string) {
-  return new web3.eth.Contract(collectionHelpersAbi as any, '0x6c4e9fe1ae37a41e93cee429e8e1881abdcbb54f', {from: caller, ...GAS_ARGS});
-}
-
-/** 
- * evm collection
- * @param web3 
- * @param caller - eth address
- * @returns 
- */
-export function evmCollection(web3: Web3, caller: string, collection: string, mode: CollectionMode = {type: 'NFT'}) {
-  let abi;
-  switch (mode.type) {
-    case 'Fungible':
-      abi = fungibleAbi;
-      break;
-    
-    case 'NFT':
-      abi = nonFungibleAbi;
-      break;
-    
-    case 'ReFungible':
-      abi = refungibleAbi;
-      break;
-
-    default:
-      throw 'Bad collection mode';
-  }
-  const contract = new web3.eth.Contract(abi as any, collection, {from: caller, ...GAS_ARGS});
-  return contract;
-}
-
-/**
- * Execute ethereum method call using substrate account
- * @param to target contract
- * @param mkTx - closure, receiving `contract.methods`, and returning method call,
- * to be used as following (assuming `to` = erc20 contract):
- * `m => m.transfer(to, amount)`
- *
- * # Example
- * ```ts
- * executeEthTxOnSub(api, alice, erc20Contract, m => m.transfer(target, amount));
- * ```
- */
-export async function executeEthTxOnSub(web3: Web3, api: ApiPromise, from: IKeyringPair, to: any, mkTx: (methods: any) => any, {value = 0}: {value?: bigint | number} = { }) {
-  const tx = api.tx.evm.call(
-    subToEth(from.address),
-    to.options.address,
-    mkTx(to.methods).encodeABI(),
-    value,
-    GAS_ARGS.gas,
-    await web3.eth.getGasPrice(),
-    null,
-    null,
-    [],
-  );
-  const events = await submitTransactionAsync(from, tx);
-  expect(events.some(({event: {section, method}}) => section == 'evm' && method == 'Executed')).to.be.true;
-}
-
-export async function ethBalanceViaSub(api: ApiPromise, address: string): Promise<bigint> {
-  return (await getBalance(api, [evmToAddress(address)]))[0];
-}
-
-/**
- * Measure how much gas given closure consumes
- *
- * @param user which user balance will be checked
- */
-export async function recordEthFee(api: ApiPromise, user: string, call: () => Promise<any>): Promise<bigint> {
-  const before = await ethBalanceViaSub(api, user);
-
-  await call();
-
-  // In dev mode, the transaction might not finish processing in time
-  await waitNewBlocks(api, 1);
-  const after = await ethBalanceViaSub(api, user);
-
-  // Can't use .to.be.less, because chai doesn't supports bigint
-  expect(after < before).to.be.true;
-
-  return before - after;
-}
-
-type ElementOf<A> = A extends readonly (infer T)[] ? T : never;
-// I want a fancier api, not a memory efficiency
-export function* cartesian<T extends Array<Array<any>>, R extends Array<any>>(internalRest: [...R], ...args: [...T]): Generator<[...R, ...{[K in keyof T]: ElementOf<T[K]>}]> {
-  if(args.length === 0) {
-    yield internalRest as any;
-    return;
-  }
-  for(const value of args[0]) {
-    yield* cartesian([...internalRest, value], ...args.slice(1)) as any;
-  }
-}
\ No newline at end of file
modifiedtests/src/eth/util/playgrounds/index.tsdiffbeforeafterboth
--- a/tests/src/eth/util/playgrounds/index.ts
+++ b/tests/src/eth/util/playgrounds/index.ts
@@ -20,6 +20,12 @@
 chai.use(chaiLike);
 export const expect = chai.expect;
 
+export enum SponsoringMode {
+  Disabled = 0,
+  Allowlisted = 1,
+  Generous = 2,
+}
+
 export const usingEthPlaygrounds = async (code: (helper: EthUniqueHelper, privateKey: (seed: string | {filename: string}) => Promise<IKeyringPair>) => Promise<void>) => {
   const silentConsole = new SilentConsole();
   silentConsole.enable();
@@ -48,7 +54,6 @@
   }
   finally {
     await helper.disconnect();
-    await helper.disconnectWeb3();
     silentConsole.disable();
   }
 };
@@ -76,15 +81,3 @@
 itEthIfWithPallet.only = (name: string, required: string[], cb: (apis: { helper: EthUniqueHelper, privateKey: (seed: string | {filename: string}) => Promise<IKeyringPair> }) => any) => itEthIfWithPallet(name, required, cb, {only: true});
 itEthIfWithPallet.skip = (name: string, required: string[], cb: (apis: { helper: EthUniqueHelper, privateKey: (seed: string | {filename: string}) => Promise<IKeyringPair> }) => any) => itEthIfWithPallet(name, required, cb, {skip: true});
 itEth.ifWithPallets = itEthIfWithPallet;
-
-type ElementOf<A> = A extends readonly (infer T)[] ? T : never;
-// I want a fancier api, not a memory efficiency
-export function* cartesian<T extends Array<Array<any>>, R extends Array<any>>(internalRest: [...R], ...args: [...T]): Generator<[...R, ...{[K in keyof T]: ElementOf<T[K]>}]> {
-  if(args.length === 0) {
-    yield internalRest as any;
-    return;
-  }
-  for(const value of args[0]) {
-    yield* cartesian([...internalRest, value], ...args.slice(1)) as any;
-  }
-}
modifiedtests/src/eth/util/playgrounds/types.tsdiffbeforeafterboth
--- a/tests/src/eth/util/playgrounds/types.ts
+++ b/tests/src/eth/util/playgrounds/types.ts
@@ -6,4 +6,10 @@
 export interface CompiledContract {
   abi: any;
   object: string;
-}
\ No newline at end of file
+}
+
+export type NormalizedEvent = {
+  address: string,
+  event: string,
+  args: { [key: string]: string }
+};
modifiedtests/src/eth/util/playgrounds/unique.dev.tsdiffbeforeafterboth
--- a/tests/src/eth/util/playgrounds/unique.dev.ts
+++ b/tests/src/eth/util/playgrounds/unique.dev.ts
@@ -18,7 +18,7 @@
 
 import {DevUniqueHelper} from '../../../util/playgrounds/unique.dev';
 
-import {ContractImports, CompiledContract} from './types';
+import {ContractImports, CompiledContract, NormalizedEvent} from './types';
 
 // Native contracts ABI
 import collectionHelpersAbi from '../../collectionHelpersAbi.json';
@@ -27,7 +27,7 @@
 import refungibleAbi from '../../reFungibleAbi.json';
 import refungibleTokenAbi from '../../reFungibleTokenAbi.json';
 import contractHelpersAbi from './../contractHelpersAbi.json';
-import {TEthereumAccount} from '../../../util/playgrounds/types';
+import {ICrossAccountId, TEthereumAccount} from '../../../util/playgrounds/types';
 
 class EthGroupBase {
   helper: EthUniqueHelper;
@@ -252,6 +252,42 @@
 
     return before - after;
   }
+
+  normalizeEvents(events: any): NormalizedEvent[] {
+    const output = [];
+    for (const key of Object.keys(events)) {
+      if (key.match(/^[0-9]+$/)) {
+        output.push(events[key]);
+      } else if (Array.isArray(events[key])) {
+        output.push(...events[key]);
+      } else {
+        output.push(events[key]);
+      }
+    }
+    output.sort((a, b) => a.logIndex - b.logIndex);
+    return output.map(({address, event, returnValues}) => {
+      const args: { [key: string]: string } = {};
+      for (const key of Object.keys(returnValues)) {
+        if (!key.match(/^[0-9]+$/)) {
+          args[key] = returnValues[key];
+        }
+      }
+      return {
+        address,
+        event,
+        args,
+      };
+    });
+  }
+
+  async calculateFee(address: ICrossAccountId, code: () => Promise<any>): Promise<bigint> {
+    const wrappedCode = async () => {
+      await code();
+      // In dev mode, the transaction might not finish processing in time
+      await this.helper.wait.newBlocks(1);
+    };
+    return await this.helper.arrange.calculcateFee(address, wrappedCode);
+  }
 }  
 
 class EthAddressGroup extends EthGroupBase {
@@ -285,6 +321,7 @@
   }
 }  
  
+export type EthUniqueHelperConstructor = new (...args: any[]) => EthUniqueHelper;
 
 export class EthUniqueHelper extends DevUniqueHelper {
   web3: Web3 | null = null;
@@ -295,8 +332,10 @@
   ethNativeContract: NativeContractGroup;
   ethContract: ContractGroup;
 
-  constructor(logger: { log: (msg: any, level: any) => void, level: any }) {
-    super(logger);
+  constructor(logger: { log: (msg: any, level: any) => void, level: any }, options: {[key: string]: any} = {}) {
+    options.helperBase = options.helperBase ?? EthUniqueHelper;
+
+    super(logger, options);
     this.eth = new EthGroup(this);
     this.ethAddress = new EthAddressGroup(this);
     this.ethNativeContract = new NativeContractGroup(this);
@@ -314,10 +353,23 @@
     this.web3 = new Web3(this.web3Provider);
   }
 
-  async disconnectWeb3() {
+  async disconnect() {
     if(this.web3 === null) return;
     this.web3Provider?.connection.close();
+
+    await super.disconnect();
+  }
+
+  clearApi() {
     this.web3 = null;
   }
+
+  clone(helperCls: EthUniqueHelperConstructor, options?: { [key: string]: any; }): EthUniqueHelper {
+    const newHelper = super.clone(helperCls, options) as EthUniqueHelper;
+    newHelper.web3 = this.web3;
+    newHelper.web3Provider = this.web3Provider;
+
+    return newHelper;
+  }
 }
   
\ No newline at end of file
deletedtests/src/flipper/flipper.wasmdiffbeforeafterboth

binary blob — no preview

deletedtests/src/flipper/metadata.jsondiffbeforeafterboth
--- a/tests/src/flipper/metadata.json
+++ /dev/null
@@ -1,110 +0,0 @@
-{
-  "metadataVersion": "0.1.0",
-  "source": {
-    "hash": "0x5b02ceadaacee8408d3c6496394847092c099bcb897221dbe8d22c16d372fa17",
-    "language": "ink! 3.0.0-rc2",
-    "compiler": "rustc 1.51.0-nightly"
-  },
-  "contract": {
-    "name": "flipper",
-    "version": "0.1.0",
-    "authors": [
-      "[your_name] <[your_email]>"
-    ]
-  },
-  "spec": {
-    "constructors": [
-      {
-        "args": [
-          {
-            "name": "init_value",
-            "type": {
-              "displayName": [
-                "bool"
-              ],
-              "type": 1
-            }
-          }
-        ],
-        "docs": [
-          " Constructor that initializes the `bool` value to the given `init_value`."
-        ],
-        "name": [
-          "new"
-        ],
-        "selector": "0xd183512b"
-      },
-      {
-        "args": [],
-        "docs": [
-          " Constructor that initializes the `bool` value to `false`.",
-          "",
-          " Constructors can delegate to other constructors."
-        ],
-        "name": [
-          "default"
-        ],
-        "selector": "0x6a3712e2"
-      }
-    ],
-    "docs": [],
-    "events": [],
-    "messages": [
-      {
-        "args": [],
-        "docs": [
-          " A message that can be called on instantiated contracts.",
-          " This one flips the value of the stored `bool` from `true`",
-          " to `false` and vice versa."
-        ],
-        "mutates": true,
-        "name": [
-          "flip"
-        ],
-        "payable": false,
-        "returnType": null,
-        "selector": "0xc096a5f3"
-      },
-      {
-        "args": [],
-        "docs": [
-          " Simply returns the current value of our `bool`."
-        ],
-        "mutates": false,
-        "name": [
-          "get"
-        ],
-        "payable": false,
-        "returnType": {
-          "displayName": [
-            "bool"
-          ],
-          "type": 1
-        },
-        "selector": "0x1e5ca456"
-      }
-    ]
-  },
-  "storage": {
-    "struct": {
-      "fields": [
-        {
-          "layout": {
-            "cell": {
-              "key": "0x0000000000000000000000000000000000000000000000000000000000000000",
-              "ty": 1
-            }
-          },
-          "name": "value"
-        }
-      ]
-    }
-  },
-  "types": [
-    {
-      "def": {
-        "primitive": "bool"
-      }
-    }
-  ]
-}
\ No newline at end of file
modifiedtests/src/inflation.test.tsdiffbeforeafterboth
--- a/tests/src/inflation.test.ts
+++ b/tests/src/inflation.test.ts
@@ -40,9 +40,9 @@
     const tx = helper.constructApiCall('api.tx.inflation.startInflation', [1]);
     await expect(helper.executeExtrinsic(superuser, 'api.tx.sudo.sudo', [tx])).to.not.be.rejected;
 
-    const blockInterval = (helper.api!.consts.inflation.inflationBlockInterval as any).toBigInt();
-    const totalIssuanceStart = ((await helper.api!.query.inflation.startingYearTotalIssuance()) as any).toBigInt();
-    const blockInflation = (await helper.api!.query.inflation.blockInflation() as any).toBigInt();
+    const blockInterval = (helper.getApi().consts.inflation.inflationBlockInterval as any).toBigInt();
+    const totalIssuanceStart = ((await helper.callRpc('api.query.inflation.startingYearTotalIssuance', [])) as any).toBigInt();
+    const blockInflation = (await helper.callRpc('api.query.inflation.blockInflation', []) as any).toBigInt();
 
     const YEAR = 5259600n;  // 6-second block. Blocks in one year
     // const YEAR = 2629800n; // 12-second block. Blocks in one year
deletedtests/src/load_test_sc/loadtester.wasmdiffbeforeafterboth

binary blob — no preview

deletedtests/src/load_test_sc/metadata.jsondiffbeforeafterboth
--- a/tests/src/load_test_sc/metadata.json
+++ /dev/null
@@ -1,125 +0,0 @@
-{
-  "metadataVersion": "0.1.0",
-  "source": {
-    "hash": "0x168cc3cba9657ad3950fb506e568751f99b90fb097685107f6101675662a8303",
-    "language": "ink! 3.0.0-rc2",
-    "compiler": "rustc 1.49.0-nightly"
-  },
-  "contract": {
-    "name": "loadtester",
-    "version": "0.1.0",
-    "authors": [
-      "[your_name] <[your_email]>"
-    ]
-  },
-  "spec": {
-    "constructors": [
-      {
-        "args": [],
-        "docs": [],
-        "name": [
-          "new"
-        ],
-        "selector": "0xd183512b"
-      }
-    ],
-    "docs": [],
-    "events": [],
-    "messages": [
-      {
-        "args": [
-          {
-            "name": "count",
-            "type": {
-              "displayName": [
-                "u64"
-              ],
-              "type": 2
-            }
-          }
-        ],
-        "docs": [],
-        "mutates": true,
-        "name": [
-          "bloat"
-        ],
-        "payable": false,
-        "returnType": null,
-        "selector": "0x49891c2a"
-      },
-      {
-        "args": [],
-        "docs": [],
-        "mutates": false,
-        "name": [
-          "get"
-        ],
-        "payable": false,
-        "returnType": {
-          "displayName": [
-            "u128"
-          ],
-          "type": 3
-        },
-        "selector": "0x1e5ca456"
-      }
-    ]
-  },
-  "storage": {
-    "struct": {
-      "fields": [
-        {
-          "layout": {
-            "struct": {
-              "fields": [
-                {
-                  "layout": {
-                    "cell": {
-                      "key": "0x0000000000000000000000000000000000000000000000000000000000000000",
-                      "ty": 1
-                    }
-                  },
-                  "name": "len"
-                },
-                {
-                  "layout": {
-                    "array": {
-                      "cellsPerElem": 1,
-                      "layout": {
-                        "cell": {
-                          "key": "0x0000000001000000000000000000000000000000000000000000000000000000",
-                          "ty": 2
-                        }
-                      },
-                      "len": 4294967295,
-                      "offset": "0x0100000000000000000000000000000000000000000000000000000000000000"
-                    }
-                  },
-                  "name": "elems"
-                }
-              ]
-            }
-          },
-          "name": "vector"
-        }
-      ]
-    }
-  },
-  "types": [
-    {
-      "def": {
-        "primitive": "u32"
-      }
-    },
-    {
-      "def": {
-        "primitive": "u64"
-      }
-    },
-    {
-      "def": {
-        "primitive": "u128"
-      }
-    }
-  ]
-}
\ No newline at end of file
deletedtests/src/nesting/migration-check.test.tsdiffbeforeafterboth
--- a/tests/src/nesting/migration-check.test.ts
+++ /dev/null
@@ -1,173 +0,0 @@
-import {expect} from 'chai';
-import usingApi, {executeTransaction, submitTransactionAsync} from '../substrate/substrate-api';
-import {getCreateCollectionResult, getCreateItemResult, normalizeAccountId} from '../util/helpers';
-import {IKeyringPair} from '@polkadot/types/types';
-import {strToUTF16} from '../util/util';
-import waitNewBlocks from '../substrate/wait-new-blocks';
-// Used for polkadot-launch signalling
-import find from 'find-process';
-
-// todo un-skip for migrations
-// todo:playgrounds skipped, this one is outdated. Probably to be deleted/replaced.
-describe.skip('Migration testing: Properties', () => {
-  let alice: IKeyringPair;
-
-  before(async() => {
-    await usingApi(async (_, privateKeyWrapper) => {
-      alice = privateKeyWrapper('//Alice');
-    });
-  });
-
-  it('Preserves collection settings after migration', async () => {
-    let oldVersion: number;
-    let collectionId: number;
-    let collectionOld: any;
-    let nftId: number;
-    let nftOld: any;
-
-    await usingApi(async api => {
-      // ----------- Collection pre-upgrade ------------
-      const txCollection = api.tx.unique.createCollectionEx({
-        mode: 'NFT',
-        access: 'AllowList',
-        name: strToUTF16('Mojave Pictures'),
-        description: strToUTF16('$2.2 billion power plant!'),
-        tokenPrefix: '0x0002030',
-        offchainSchema: '0x111111',
-        schemaVersion: 'Unique',
-        limits: {
-          accountTokenOwnershipLimit: 3,
-        },
-        constOnChainSchema: '0x333333',
-        variableOnChainSchema: '0x22222',
-      });
-      const events0 = await submitTransactionAsync(alice, txCollection);
-      const result0 = getCreateCollectionResult(events0);
-      collectionId = result0.collectionId;
-
-      // Get the pre-upgrade collection info
-      collectionOld = (await api.query.common.collectionById(collectionId)).toJSON();
-
-      // ---------- NFT pre-upgrade ------------
-      const txNft = api.tx.unique.createItem(
-        collectionId, 
-        normalizeAccountId(alice), 
-        {
-          NFT: {
-            owner: {substrate: alice.address},
-            constData: '0x0000',
-            variableData: '0x1111',
-          },
-        },
-      );
-      const events1 = await executeTransaction(api, alice, txNft);
-      const result1 = getCreateItemResult(events1);
-      nftId = result1.itemId;
-
-      // Get the pre-upgrade NFT data
-      nftOld = (await api.query.nonfungible.tokenData(collectionId, nftId)).toJSON();
-
-      // Get the pre-upgrade spec version
-      oldVersion = (api.consts.system.version.toJSON() as any).specVersion;
-    });
-
-    console.log(`Now waiting for the parachain upgrade from ${oldVersion!}...`);
-
-    let newVersion = oldVersion!;
-    let connectionFailCounter = 0;
-
-    // Cooperate with polkadot-launch if it's running (assuming custom name change to 'polkadot-launch'), and send a custom signal
-    find('name', 'polkadot-launch', true).then((list) => {
-      for (const proc of list) {
-        process.kill(proc.pid, 'SIGUSR1');
-      }
-    });
-
-    // And wait for the parachain upgrade
-    {
-      // Catch warnings like 'RPC methods not decorated' and keep the 'waiting' message in front
-      const stdlog = console.warn.bind(console);
-      let warnCount = 0;
-      console.warn = function(...args){
-        if (arguments.length <= 2 || !args[2].includes('RPC methods not decorated')) {
-          warnCount++;
-          stdlog.apply(console, args as any);
-        }
-      };
-
-      let oldWarnCount = 0;
-      while (newVersion == oldVersion! && connectionFailCounter < 5) {
-        await new Promise(resolve => setTimeout(resolve, 12000));
-        try {
-          await usingApi(async api => {
-            await waitNewBlocks(api);
-            newVersion = (api.consts.system.version.toJSON() as any).specVersion;
-            if (warnCount > oldWarnCount) {
-              console.log(`Still waiting for the parachain upgrade from ${oldVersion!}...`);
-              oldWarnCount = warnCount;
-            }
-          });
-        } catch (_) {
-          connectionFailCounter++;
-        }
-      }
-    }
-
-    await usingApi(async api => {
-      // ---------- Collection comparison -----------
-      const collectionNew = (await api.query.common.collectionById(collectionId)).toJSON() as any;
-
-      // Make sure the extra fields are what they should be
-      expect((
-        await api.rpc.unique.collectionProperties(collectionId, ['_old_constOnChainSchema'])
-      )[0].value.toHex()).to.be.equal(collectionOld.constOnChainSchema);
-
-      expect((
-        await api.rpc.unique.collectionProperties(collectionId, ['_old_variableOnChainSchema'])
-      )[0].value.toHex()).to.be.equal(collectionOld.variableOnChainSchema);
-
-      expect((
-        await api.rpc.unique.collectionProperties(collectionId, ['_old_offchainSchema'])
-      )[0].value.toHex()).to.be.equal(collectionOld.offchainSchema);
-
-      expect((
-        await api.rpc.unique.collectionProperties(collectionId, ['_old_schemaVersion'])
-      )[0].value.toHuman()).to.be.equal(collectionOld.schemaVersion);
-
-      expect(collectionNew.permissions).to.be.deep.equal({
-        access: collectionOld.access,
-        mintMode: collectionOld.mintMode,
-        nesting: null,
-      });
-
-      expect(collectionNew.externalCollection).to.be.equal(false);
-
-      // Get rid of extra fields to perform comparison on the rest of the collection
-      delete collectionNew.permissions;
-      delete collectionNew.externalCollection;
-      delete collectionOld.schemaVersion;
-      delete collectionOld.constOnChainSchema;
-      delete collectionOld.variableOnChainSchema;
-      delete collectionOld.offchainSchema;
-      delete collectionOld.mintMode;
-      delete collectionOld.access;
-      delete collectionOld.metaUpdatePermission; // todo look into, doesn't migrate
-
-      expect(collectionNew).to.be.deep.equal(collectionOld);
-
-      // ---------- NFT comparison -----------
-      const nftNew = (await api.query.nonfungible.tokenData(collectionId, nftId)).toJSON() as any;
-
-      // Make sure the extra fields are what they should be
-      expect((await api.rpc.unique.tokenProperties(collectionId, nftId, ['_old_constData']))[0].value.toHex()).to.be.equal(nftOld.constData);
-
-      expect((await api.rpc.unique.tokenProperties(collectionId, nftId, ['_old_variableData']))[0].value.toHex()).to.be.equal(nftOld.variableData);
-
-      // Get rid of extra fields to perform comparison on the rest of the NFT
-      delete nftOld.constData;
-      delete nftOld.variableData;
-
-      expect(nftNew).to.be.deep.equal(nftOld);
-    });
-  });
-});
modifiedtests/src/nesting/properties.test.tsdiffbeforeafterboth
--- a/tests/src/nesting/properties.test.ts
+++ b/tests/src/nesting/properties.test.ts
@@ -276,7 +276,7 @@
   
   itSub('Reads access rights to properties of a collection', async ({helper}) =>  {
     const collection = await helper.nft.mintCollection(alice);
-    const propertyRights = (await helper.api!.query.common.collectionPropertyPermissions(collection.collectionId)).toJSON();
+    const propertyRights = (await helper.callRpc('api.query.common.collectionPropertyPermissions', [collection.collectionId])).toJSON();
     expect(propertyRights).to.be.empty;
   });
   
@@ -817,7 +817,7 @@
       ).to.be.fulfilled;
     }
 
-    const originalSpace = await getConsumedSpace(token.collection.helper.api, token.collectionId, token.tokenId, pieces == 1n ? 'NFT' : 'RFT'); 
+    const originalSpace = await getConsumedSpace(token.collection.helper.getApi(), token.collectionId, token.tokenId, pieces == 1n ? 'NFT' : 'RFT'); 
     return originalSpace;
   }
 
@@ -840,7 +840,7 @@
       ).to.be.rejectedWith(/common\.NoPermission/);
     }
 
-    const consumedSpace = await getConsumedSpace(token.collection.helper.api, token.collectionId, token.tokenId, pieces == 1n ? 'NFT' : 'RFT'); 
+    const consumedSpace = await getConsumedSpace(token.collection.helper.getApi(), token.collectionId, token.tokenId, pieces == 1n ? 'NFT' : 'RFT'); 
     expect(consumedSpace).to.be.equal(originalSpace);
   }
 
@@ -875,7 +875,7 @@
       ).to.be.rejectedWith(/common\.NoPermission/);
     }
   
-    const consumedSpace = await getConsumedSpace(token.collection.helper.api, token.collectionId, token.tokenId, pieces == 1n ? 'NFT' : 'RFT'); 
+    const consumedSpace = await getConsumedSpace(token.collection.helper.getApi(), token.collectionId, token.tokenId, pieces == 1n ? 'NFT' : 'RFT'); 
     expect(consumedSpace).to.be.equal(originalSpace);
   }
 
@@ -911,7 +911,7 @@
 
     expect(await token.getProperties(['non-existent', 'now-existent'])).to.be.empty;
       
-    const consumedSpace = await getConsumedSpace(token.collection.helper.api, token.collectionId, token.tokenId, pieces == 1n ? 'NFT' : 'RFT'); 
+    const consumedSpace = await getConsumedSpace(token.collection.helper.getApi(), token.collectionId, token.tokenId, pieces == 1n ? 'NFT' : 'RFT'); 
     expect(consumedSpace).to.be.equal(originalSpace);
   }
 
@@ -951,7 +951,7 @@
     ])).to.be.rejectedWith(/common\.NoSpaceForProperty/);
   
     expect(await token.getProperties(['a_holy_book', 'young_years'])).to.be.empty;
-    const consumedSpace = await getConsumedSpace(token.collection.helper.api, token.collectionId, token.tokenId, pieces == 1n ? 'NFT' : 'RFT'); 
+    const consumedSpace = await getConsumedSpace(token.collection.helper.getApi(), token.collectionId, token.tokenId, pieces == 1n ? 'NFT' : 'RFT'); 
     expect(consumedSpace).to.be.equal(originalSpace);
   }
 
deletedtests/src/overflow.test.tsdiffbeforeafterboth
--- a/tests/src/overflow.test.ts
+++ /dev/null
@@ -1,73 +0,0 @@
-// Copyright 2019-2022 Unique Network (Gibraltar) Ltd.
-// This file is part of Unique Network.
-
-// Unique Network is free software: you can redistribute it and/or modify
-// it under the terms of the GNU General Public License as published by
-// the Free Software Foundation, either version 3 of the License, or
-// (at your option) any later version.
-
-// Unique Network is distributed in the hope that it will be useful,
-// but WITHOUT ANY WARRANTY; without even the implied warranty of
-// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
-// GNU General Public License for more details.
-
-// You should have received a copy of the GNU General Public License
-// along with Unique Network. If not, see <http://www.gnu.org/licenses/>.
-
-import {IKeyringPair} from '@polkadot/types/types';
-import chai from 'chai';
-import chaiAsPromised from 'chai-as-promised';
-import usingApi from './substrate/substrate-api';
-import {approveExpectSuccess, createCollectionExpectSuccess, createFungibleItemExpectSuccess, getAllowance, getBalance, transferExpectFailure, transferExpectSuccess, transferFromExpectFail, transferFromExpectSuccess, U128_MAX} from './util/helpers';
-
-chai.use(chaiAsPromised);
-const expect = chai.expect;
-
-// todo:playgrounds skipped ~ postponed
-describe.skip('Integration Test fungible overflows', () => {
-  let alice: IKeyringPair;
-  let bob: IKeyringPair;
-  let charlie: IKeyringPair;
-
-  before(async () => {
-    await usingApi(async (api, privateKeyWrapper) => {
-      alice = privateKeyWrapper('//Alice');
-      bob = privateKeyWrapper('//Bob');
-      charlie = privateKeyWrapper('//Charlie');
-    });
-  });
-
-  it('fails when overflows on transfer', async () => {
-    await usingApi(async api => {
-      const fungibleCollectionId = await createCollectionExpectSuccess({mode: {type: 'Fungible', decimalPoints: 0}});
-
-      await createFungibleItemExpectSuccess(alice, fungibleCollectionId, {Value: U128_MAX});
-      await transferExpectSuccess(fungibleCollectionId, 0, alice, bob, U128_MAX, 'Fungible');
-
-      await createFungibleItemExpectSuccess(alice, fungibleCollectionId, {Value: 1n});
-      await transferExpectFailure(fungibleCollectionId, 0, alice, bob, 1);
-
-      expect(await getBalance(api, fungibleCollectionId, alice.address, 0)).to.equal(1n);
-      expect(await getBalance(api, fungibleCollectionId, bob.address, 0)).to.equal(U128_MAX);
-    });
-  });
-
-  it('fails when overflows on transferFrom', async () => {
-    await usingApi(async api => {
-      const fungibleCollectionId = await createCollectionExpectSuccess({mode: {type: 'Fungible', decimalPoints: 0}});
-      await createFungibleItemExpectSuccess(alice, fungibleCollectionId, {Value: U128_MAX});
-      await approveExpectSuccess(fungibleCollectionId, 0, alice, bob.address, U128_MAX);
-      await transferFromExpectSuccess(fungibleCollectionId, 0, bob, alice, charlie, U128_MAX, 'Fungible');
-
-      expect(await getBalance(api, fungibleCollectionId, charlie.address, 0)).to.equal(U128_MAX);
-      expect(await getAllowance(api, fungibleCollectionId, alice.address, bob.address, 0)).to.equal(0n);
-
-      await createFungibleItemExpectSuccess(alice, fungibleCollectionId, {Value: U128_MAX});
-      await approveExpectSuccess(fungibleCollectionId, 0, alice, bob.address, 1n);
-      await transferFromExpectFail(fungibleCollectionId, 0, bob, alice, charlie, 1);
-
-      expect(await getBalance(api, fungibleCollectionId, charlie.address, 0)).to.equal(U128_MAX);
-      expect(await getAllowance(api, fungibleCollectionId, alice.address, bob.address, 0)).to.equal(1n);
-    });
-  });
-});
modifiedtests/src/pallet-presence.test.tsdiffbeforeafterboth
--- a/tests/src/pallet-presence.test.ts
+++ b/tests/src/pallet-presence.test.ts
@@ -59,7 +59,7 @@
 describe('Pallet presence', () => {
   before(async () => {
     await usingPlaygrounds(async helper => {
-      const chain = await helper.api!.rpc.system.chain();
+      const chain = await helper.callRpc('api.rpc.system.chain', []);
 
       const refungible = 'refungible';
       const scheduler = 'scheduler';
deletedtests/src/removeFromContractAllowList.test.tsdiffbeforeafterboth
--- a/tests/src/removeFromContractAllowList.test.ts
+++ /dev/null
@@ -1,92 +0,0 @@
-// Copyright 2019-2022 Unique Network (Gibraltar) Ltd.
-// This file is part of Unique Network.
-
-// Unique Network is free software: you can redistribute it and/or modify
-// it under the terms of the GNU General Public License as published by
-// the Free Software Foundation, either version 3 of the License, or
-// (at your option) any later version.
-
-// Unique Network is distributed in the hope that it will be useful,
-// but WITHOUT ANY WARRANTY; without even the implied warranty of
-// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
-// GNU General Public License for more details.
-
-// You should have received a copy of the GNU General Public License
-// along with Unique Network. If not, see <http://www.gnu.org/licenses/>.
-
-import usingApi from './substrate/substrate-api';
-import {deployFlipper, toggleFlipValueExpectFailure, toggleFlipValueExpectSuccess} from './util/contracthelpers';
-import {addToContractAllowListExpectSuccess, isAllowlistedInContract, removeFromContractAllowListExpectFailure, removeFromContractAllowListExpectSuccess, toggleContractAllowlistExpectSuccess} from './util/helpers';
-import {IKeyringPair} from '@polkadot/types/types';
-import {expect} from 'chai';
-
-// todo:playgrounds skipped again
-describe.skip('Integration Test removeFromContractAllowList', () => {
-  let bob: IKeyringPair;
-
-  before(async () => {
-    await usingApi(async (api, privateKeyWrapper) => {
-      bob = privateKeyWrapper('//Bob');
-    });
-  });
-
-  it('user is no longer allowlisted after removal', async () => {
-    await usingApi(async (api, privateKeyWrapper) => {
-      const [flipper, deployer] = await deployFlipper(api, privateKeyWrapper);
-
-      await addToContractAllowListExpectSuccess(deployer, flipper.address.toString(), bob.address);
-      await removeFromContractAllowListExpectSuccess(deployer, flipper.address.toString(), bob.address);
-
-      expect(await isAllowlistedInContract(flipper.address, bob.address)).to.be.false;
-    });
-  });
-
-  it('user can\'t execute contract after removal', async () => {
-    await usingApi(async (api, privateKeyWrapper) => {
-      const [flipper, deployer] = await deployFlipper(api, privateKeyWrapper);
-      await toggleContractAllowlistExpectSuccess(deployer, flipper.address.toString(), true);
-
-      await addToContractAllowListExpectSuccess(deployer, flipper.address.toString(), bob.address);
-      await toggleFlipValueExpectSuccess(bob, flipper);
-
-      await removeFromContractAllowListExpectSuccess(deployer, flipper.address.toString(), bob.address);
-      await toggleFlipValueExpectFailure(bob, flipper);
-    });
-  });
-
-  it('can be called twice', async () => {
-    await usingApi(async (api, privateKeyWrapper) => {
-      const [flipper, deployer] = await deployFlipper(api, privateKeyWrapper);
-
-      await addToContractAllowListExpectSuccess(deployer, flipper.address.toString(), bob.address);
-      await removeFromContractAllowListExpectSuccess(deployer, flipper.address.toString(), bob.address);
-      await removeFromContractAllowListExpectSuccess(deployer, flipper.address.toString(), bob.address);
-    });
-  });
-});
-
-describe.skip('Negative Integration Test removeFromContractAllowList', () => {
-  let alice: IKeyringPair;
-  let bob: IKeyringPair;
-
-  before(async () => {
-    await usingApi(async (api, privateKeyWrapper) => {
-      alice = privateKeyWrapper('//Alice');
-      bob = privateKeyWrapper('//Bob');
-    });
-  });
-
-  it('fails when called with non-contract address', async () => {
-    await usingApi(async () => {
-      await removeFromContractAllowListExpectFailure(alice, alice.address, bob.address);
-    });
-  });
-
-  it('fails when executed by non owner', async () => {
-    await usingApi(async (api, privateKeyWrapper) => {
-      const [flipper] = await deployFlipper(api, privateKeyWrapper);
-
-      await removeFromContractAllowListExpectFailure(alice, flipper.address.toString(), bob.address);
-    });
-  });
-});
modifiedtests/src/rmrk/acceptNft.test.tsdiffbeforeafterboth
--- a/tests/src/rmrk/acceptNft.test.ts
+++ b/tests/src/rmrk/acceptNft.test.ts
@@ -8,7 +8,7 @@
 } from './util/tx';
 import {NftIdTuple} from './util/fetch';
 import {isNftChildOfAnother, expectTxFailure} from './util/helpers';
-import {requirePallets, Pallets} from '../util/helpers';
+import {requirePallets, Pallets} from '../deprecated-helpers/helpers';
 
 describe('integration test: accept NFT', () => {
   let api: any;
modifiedtests/src/rmrk/addResource.test.tsdiffbeforeafterboth
--- a/tests/src/rmrk/addResource.test.ts
+++ b/tests/src/rmrk/addResource.test.ts
@@ -12,7 +12,7 @@
   addNftComposableResource,
 } from './util/tx';
 import {RmrkTraitsResourceResourceInfo as ResourceInfo} from '@polkadot/types/lookup';
-import {requirePallets, Pallets} from '../util/helpers';
+import {requirePallets, Pallets} from '../deprecated-helpers/helpers';
 
 describe('integration test: add NFT resource', () => {
   const Alice = '//Alice';
modifiedtests/src/rmrk/addTheme.test.tsdiffbeforeafterboth
--- a/tests/src/rmrk/addTheme.test.ts
+++ b/tests/src/rmrk/addTheme.test.ts
@@ -3,7 +3,7 @@
 import {createBase, addTheme} from './util/tx';
 import {expectTxFailure} from './util/helpers';
 import {getThemeNames} from './util/fetch';
-import {requirePallets, Pallets} from '../util/helpers';
+import {requirePallets, Pallets} from '../deprecated-helpers/helpers';
 
 describe('integration test: add Theme to Base', () => {
   let api: any;
modifiedtests/src/rmrk/burnNft.test.tsdiffbeforeafterboth
--- a/tests/src/rmrk/burnNft.test.ts
+++ b/tests/src/rmrk/burnNft.test.ts
@@ -5,7 +5,7 @@
 
 import chai from 'chai';
 import chaiAsPromised from 'chai-as-promised';
-import {requirePallets, Pallets} from '../util/helpers';
+import {requirePallets, Pallets} from '../deprecated-helpers/helpers';
 
 chai.use(chaiAsPromised);
 const expect = chai.expect;
modifiedtests/src/rmrk/changeCollectionIssuer.test.tsdiffbeforeafterboth
--- a/tests/src/rmrk/changeCollectionIssuer.test.ts
+++ b/tests/src/rmrk/changeCollectionIssuer.test.ts
@@ -1,5 +1,5 @@
 import {getApiConnection} from '../substrate/substrate-api';
-import {requirePallets, Pallets} from '../util/helpers';
+import {requirePallets, Pallets} from '../deprecated-helpers/helpers';
 import {expectTxFailure} from './util/helpers';
 import {
   changeIssuer,
modifiedtests/src/rmrk/createBase.test.tsdiffbeforeafterboth
--- a/tests/src/rmrk/createBase.test.ts
+++ b/tests/src/rmrk/createBase.test.ts
@@ -1,5 +1,5 @@
 import {getApiConnection} from '../substrate/substrate-api';
-import {requirePallets, Pallets} from '../util/helpers';
+import {requirePallets, Pallets} from '../deprecated-helpers/helpers';
 import {createCollection, createBase} from './util/tx';
 
 describe('integration test: create new Base', () => {
modifiedtests/src/rmrk/createCollection.test.tsdiffbeforeafterboth
--- a/tests/src/rmrk/createCollection.test.ts
+++ b/tests/src/rmrk/createCollection.test.ts
@@ -1,5 +1,5 @@
 import {getApiConnection} from '../substrate/substrate-api';
-import {requirePallets, Pallets} from '../util/helpers';
+import {requirePallets, Pallets} from '../deprecated-helpers/helpers';
 import {createCollection} from './util/tx';
 
 describe('Integration test: create new collection', () => {
modifiedtests/src/rmrk/deleteCollection.test.tsdiffbeforeafterboth
--- a/tests/src/rmrk/deleteCollection.test.ts
+++ b/tests/src/rmrk/deleteCollection.test.ts
@@ -1,5 +1,5 @@
 import {getApiConnection} from '../substrate/substrate-api';
-import {requirePallets, Pallets} from '../util/helpers';
+import {requirePallets, Pallets} from '../deprecated-helpers/helpers';
 import {expectTxFailure} from './util/helpers';
 import {createCollection, deleteCollection} from './util/tx';
 
modifiedtests/src/rmrk/equipNft.test.tsdiffbeforeafterboth
--- a/tests/src/rmrk/equipNft.test.ts
+++ b/tests/src/rmrk/equipNft.test.ts
@@ -1,7 +1,7 @@
 import {ApiPromise} from '@polkadot/api';
 import {expect} from 'chai';
 import {getApiConnection} from '../substrate/substrate-api';
-import {requirePallets, Pallets} from '../util/helpers';
+import {requirePallets, Pallets} from '../deprecated-helpers/helpers';
 import {getNft, getParts, NftIdTuple} from './util/fetch';
 import {expectTxFailure} from './util/helpers';
 import {
modifiedtests/src/rmrk/getOwnedNfts.test.tsdiffbeforeafterboth
--- a/tests/src/rmrk/getOwnedNfts.test.ts
+++ b/tests/src/rmrk/getOwnedNfts.test.ts
@@ -1,6 +1,6 @@
 import {expect} from 'chai';
 import {getApiConnection} from '../substrate/substrate-api';
-import {requirePallets, Pallets} from '../util/helpers';
+import {requirePallets, Pallets} from '../deprecated-helpers/helpers';
 import {getOwnedNfts} from './util/fetch';
 import {mintNft, createCollection} from './util/tx';
 
modifiedtests/src/rmrk/lockCollection.test.tsdiffbeforeafterboth
--- a/tests/src/rmrk/lockCollection.test.ts
+++ b/tests/src/rmrk/lockCollection.test.ts
@@ -1,5 +1,5 @@
 import {getApiConnection} from '../substrate/substrate-api';
-import {requirePallets, Pallets} from '../util/helpers';
+import {requirePallets, Pallets} from '../deprecated-helpers/helpers';
 import {expectTxFailure} from './util/helpers';
 import {createCollection, lockCollection, mintNft} from './util/tx';
 
modifiedtests/src/rmrk/mintNft.test.tsdiffbeforeafterboth
--- a/tests/src/rmrk/mintNft.test.ts
+++ b/tests/src/rmrk/mintNft.test.ts
@@ -1,6 +1,6 @@
 import {expect} from 'chai';
 import {getApiConnection} from '../substrate/substrate-api';
-import {requirePallets, Pallets} from '../util/helpers';
+import {requirePallets, Pallets} from '../deprecated-helpers/helpers';
 import {getNft} from './util/fetch';
 import {expectTxFailure} from './util/helpers';
 import {createCollection, mintNft} from './util/tx';
modifiedtests/src/rmrk/rejectNft.test.tsdiffbeforeafterboth
--- a/tests/src/rmrk/rejectNft.test.ts
+++ b/tests/src/rmrk/rejectNft.test.ts
@@ -8,7 +8,7 @@
 } from './util/tx';
 import {getChildren, NftIdTuple} from './util/fetch';
 import {isNftChildOfAnother, expectTxFailure} from './util/helpers';
-import {requirePallets, Pallets} from '../util/helpers';
+import {requirePallets, Pallets} from '../deprecated-helpers/helpers';
 
 describe('integration test: reject NFT', () => {
   let api: any;
modifiedtests/src/rmrk/removeResource.test.tsdiffbeforeafterboth
--- a/tests/src/rmrk/removeResource.test.ts
+++ b/tests/src/rmrk/removeResource.test.ts
@@ -1,7 +1,7 @@
 import {expect} from 'chai';
 import privateKey from '../substrate/privateKey';
 import {executeTransaction, getApiConnection} from '../substrate/substrate-api';
-import {requirePallets, Pallets} from '../util/helpers';
+import {requirePallets, Pallets} from '../deprecated-helpers/helpers';
 import {getNft, NftIdTuple} from './util/fetch';
 import {expectTxFailure} from './util/helpers';
 import {
modifiedtests/src/rmrk/rmrkIsolation.test.tsdiffbeforeafterboth
--- a/tests/src/rmrk/rmrkIsolation.test.ts
+++ b/tests/src/rmrk/rmrkIsolation.test.ts
@@ -9,7 +9,7 @@
   requirePallets,
   normalizeAccountId,
   Pallets,
-} from '../util/helpers';
+} from '../deprecated-helpers/helpers';
 import {IKeyringPair} from '@polkadot/types/types';
 import {ApiPromise} from '@polkadot/api';
 import {it} from 'mocha';
modifiedtests/src/rmrk/sendNft.test.tsdiffbeforeafterboth
--- a/tests/src/rmrk/sendNft.test.ts
+++ b/tests/src/rmrk/sendNft.test.ts
@@ -3,7 +3,7 @@
 import {createCollection, mintNft, sendNft} from './util/tx';
 import {NftIdTuple} from './util/fetch';
 import {isNftChildOfAnother, expectTxFailure} from './util/helpers';
-import {requirePallets, Pallets} from '../util/helpers';
+import {requirePallets, Pallets} from '../deprecated-helpers/helpers';
 
 describe('integration test: send NFT', () => {
   let api: any;
modifiedtests/src/rmrk/setCollectionProperty.test.tsdiffbeforeafterboth
--- a/tests/src/rmrk/setCollectionProperty.test.ts
+++ b/tests/src/rmrk/setCollectionProperty.test.ts
@@ -1,5 +1,5 @@
 import {getApiConnection} from '../substrate/substrate-api';
-import {requirePallets, Pallets} from '../util/helpers';
+import {requirePallets, Pallets} from '../deprecated-helpers/helpers';
 import {expectTxFailure} from './util/helpers';
 import {createCollection, setPropertyCollection} from './util/tx';
 
modifiedtests/src/rmrk/setEquippableList.test.tsdiffbeforeafterboth
--- a/tests/src/rmrk/setEquippableList.test.ts
+++ b/tests/src/rmrk/setEquippableList.test.ts
@@ -1,5 +1,5 @@
 import {getApiConnection} from '../substrate/substrate-api';
-import {requirePallets, Pallets} from '../util/helpers';
+import {requirePallets, Pallets} from '../deprecated-helpers/helpers';
 import {expectTxFailure} from './util/helpers';
 import {createCollection, createBase, setEquippableList} from './util/tx';
 
modifiedtests/src/rmrk/setNftProperty.test.tsdiffbeforeafterboth
--- a/tests/src/rmrk/setNftProperty.test.ts
+++ b/tests/src/rmrk/setNftProperty.test.ts
@@ -1,5 +1,5 @@
 import {getApiConnection} from '../substrate/substrate-api';
-import {requirePallets, Pallets} from '../util/helpers';
+import {requirePallets, Pallets} from '../deprecated-helpers/helpers';
 import {NftIdTuple} from './util/fetch';
 import {expectTxFailure} from './util/helpers';
 import {createCollection, mintNft, sendNft, setNftProperty} from './util/tx';
modifiedtests/src/rmrk/setResourcePriorities.test.tsdiffbeforeafterboth
--- a/tests/src/rmrk/setResourcePriorities.test.ts
+++ b/tests/src/rmrk/setResourcePriorities.test.ts
@@ -1,5 +1,5 @@
 import {getApiConnection} from '../substrate/substrate-api';
-import {requirePallets, Pallets} from '../util/helpers';
+import {requirePallets, Pallets} from '../deprecated-helpers/helpers';
 import {expectTxFailure} from './util/helpers';
 import {mintNft, createCollection, setResourcePriorities} from './util/tx';
 
deletedtests/src/rpc.load.tsdiffbeforeafterboth
--- a/tests/src/rpc.load.ts
+++ /dev/null
@@ -1,155 +0,0 @@
-// Copyright 2019-2022 Unique Network (Gibraltar) Ltd.
-// This file is part of Unique Network.
-
-// Unique Network is free software: you can redistribute it and/or modify
-// it under the terms of the GNU General Public License as published by
-// the Free Software Foundation, either version 3 of the License, or
-// (at your option) any later version.
-
-// Unique Network is distributed in the hope that it will be useful,
-// but WITHOUT ANY WARRANTY; without even the implied warranty of
-// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
-// GNU General Public License for more details.
-
-// You should have received a copy of the GNU General Public License
-// along with Unique Network. If not, see <http://www.gnu.org/licenses/>.
-
-import usingApi, {submitTransactionAsync} from './substrate/substrate-api';
-import {IKeyringPair} from '@polkadot/types/types';
-import {Abi, BlueprintPromise as Blueprint, CodePromise, ContractPromise as Contract} from '@polkadot/api-contract';
-import {ApiPromise, Keyring} from '@polkadot/api';
-import {findUnusedAddress} from './util/helpers';
-import fs from 'fs';
-
-const value = 0;
-const gasLimit = 500000n * 1000000n;
-const endowment = '1000000000000000';
-
-/*eslint no-async-promise-executor: "off"*/
-function deployBlueprint(alice: IKeyringPair, code: CodePromise): Promise<Blueprint> {
-  return new Promise<Blueprint>(async (resolve) => {
-    const unsub = await code
-      .createBlueprint()
-      .signAndSend(alice, (result) => {
-        if (result.status.isInBlock || result.status.isFinalized) {
-          // here we have an additional field in the result, containing the blueprint
-          resolve(result.blueprint);
-          unsub();
-        }
-      });
-  });
-}
-
-/*eslint no-async-promise-executor: "off"*/
-function deployContract(alice: IKeyringPair, blueprint: Blueprint) : Promise<any> {
-  return new Promise<any>(async (resolve) => {
-    const unsub = await blueprint.tx
-      .new(endowment, gasLimit)
-      .signAndSend(alice, (result) => {
-        if (result.status.isInBlock || result.status.isFinalized) {
-          unsub();
-          resolve(result);
-        }
-      });
-  });
-}
-
-async function prepareDeployer(api: ApiPromise, privateKeyWrapper: ((account: string) => IKeyringPair)) {
-  // Find unused address
-  const deployer = await findUnusedAddress(api, privateKeyWrapper);
-
-  // Transfer balance to it
-  const alice = privateKeyWrapper('//Alice');
-  const amount = BigInt(endowment) + 10n**15n;
-  const tx = api.tx.balances.transfer(deployer.address, amount);
-  await submitTransactionAsync(alice, tx);
-
-  return deployer;
-}
-
-async function deployLoadTester(api: ApiPromise, privateKeyWrapper: ((account: string) => IKeyringPair)): Promise<[Contract, IKeyringPair]> {
-  const metadata = JSON.parse(fs.readFileSync('./src/load_test_sc/metadata.json').toString('utf-8'));
-  const abi = new Abi(metadata);
-
-  const deployer = await prepareDeployer(api, privateKeyWrapper);
-
-  const wasm = fs.readFileSync('./src/load_test_sc/loadtester.wasm');
-
-  const code = new CodePromise(api, abi, wasm);
-
-  const blueprint = await deployBlueprint(deployer, code);
-  const contract = (await deployContract(deployer, blueprint))['contract'] as Contract;
-
-  return [contract, deployer];
-}
-
-async function getScData(contract: Contract, deployer: IKeyringPair) {
-  const result = await contract.query.get(deployer.address, value, gasLimit);
-
-  if(!result.result.isSuccess) {
-    throw 'Failed to get value';
-  }
-  return result.result.asSuccess.data;
-}
-
-
-describe('RPC Tests', () => {
-  it('Simple RPC Load Test', async () => {
-    await usingApi(async api => {
-      let count = 0;
-      let hrTime = process.hrtime();
-      let microsec1 = hrTime[0] * 1000000 + hrTime[1] / 1000;
-      let rate = 0;
-      const checkPoint = 1000;
-
-      /* eslint no-constant-condition: "off" */
-      while (true) {
-        await api.rpc.system.chain();
-        count++;
-        process.stdout.write(`RPC reads: ${count} times at rate ${rate} r/s            \r`);
-
-        if (count % checkPoint == 0) {
-          hrTime = process.hrtime();
-          const microsec2 = hrTime[0] * 1000000 + hrTime[1] / 1000;
-          rate = 1000000*checkPoint/(microsec2 - microsec1);
-          microsec1 = microsec2;
-        }
-      }
-    });
-  });
-
-  it('Smart Contract RPC Load Test', async () => {
-    await usingApi(async (api, privateKeyWrapper) => {
-
-      // Deploy smart contract
-      const [contract, deployer] = await deployLoadTester(api, privateKeyWrapper);
-
-      // Fill smart contract up with data
-      const bob = privateKeyWrapper('//Bob');
-      const tx = contract.tx.bloat(value, gasLimit, 200);
-      await submitTransactionAsync(bob, tx);
-
-      // Run load test
-      let count = 0;
-      let hrTime = process.hrtime();
-      let microsec1 = hrTime[0] * 1000000 + hrTime[1] / 1000;
-      let rate = 0;
-      const checkPoint = 10;
-
-      /* eslint no-constant-condition: "off" */
-      while (true) {
-        await getScData(contract, deployer);
-        count++;
-        process.stdout.write(`SC reads: ${count} times at rate ${rate} r/s            \r`);
-
-        if (count % checkPoint == 0) {
-          hrTime = process.hrtime();
-          const microsec2 = hrTime[0] * 1000000 + hrTime[1] / 1000;
-          rate = 1000000*checkPoint/(microsec2 - microsec1);
-          microsec1 = microsec2;
-        }
-      }
-    });
-  });
-
-});
deletedtests/src/scheduler.test.tsdiffbeforeafterboth
--- a/tests/src/scheduler.test.ts
+++ /dev/null
@@ -1,210 +0,0 @@
-// Copyright 2019-2022 Unique Network (Gibraltar) Ltd.
-// This file is part of Unique Network.
-
-// Unique Network is free software: you can redistribute it and/or modify
-// it under the terms of the GNU General Public License as published by
-// the Free Software Foundation, either version 3 of the License, or
-// (at your option) any later version.
-
-// Unique Network is distributed in the hope that it will be useful,
-// but WITHOUT ANY WARRANTY; without even the implied warranty of
-// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
-// GNU General Public License for more details.
-
-// You should have received a copy of the GNU General Public License
-// along with Unique Network. If not, see <http://www.gnu.org/licenses/>.
-
-import chai, {expect} from 'chai';
-import chaiAsPromised from 'chai-as-promised';
-import {
-  default as usingApi, 
-  submitTransactionAsync,
-} from './substrate/substrate-api';
-import {
-  createItemExpectSuccess,
-  createCollectionExpectSuccess,
-  scheduleTransferExpectSuccess,
-  scheduleTransferAndWaitExpectSuccess,
-  setCollectionSponsorExpectSuccess,
-  confirmSponsorshipExpectSuccess,
-  findUnusedAddress,
-  UNIQUE,
-  enablePublicMintingExpectSuccess,
-  addToAllowListExpectSuccess,
-  waitNewBlocks,
-  normalizeAccountId,
-  getTokenOwner,
-  getGenericResult,
-  scheduleTransferFundsPeriodicExpectSuccess,
-  getFreeBalance,
-  confirmSponsorshipByKeyExpectSuccess,
-  scheduleExpectFailure,
-} from './util/helpers';
-import {IKeyringPair} from '@polkadot/types/types';
-
-chai.use(chaiAsPromised);
-
-// todo:playgrounds skipped ~ postponed
-describe.skip('Scheduling token and balance transfers', () => {
-  let alice: IKeyringPair;
-  let bob: IKeyringPair;
-  let scheduledIdBase: string;
-  let scheduledIdSlider: number;
-
-  before(async() => {
-    await usingApi(async (api, privateKeyWrapper) => {
-      alice = privateKeyWrapper('//Alice');
-      bob = privateKeyWrapper('//Bob');
-    });
-
-    scheduledIdBase = '0x' + '0'.repeat(31);
-    scheduledIdSlider = 0;
-  });
-
-  // Loop scheduledId around 10. Unless there are concurrent tasks with long periods/repetitions, tests' tasks' ids shouldn't ovelap.
-  function makeScheduledId(): string {
-    return scheduledIdBase + ((scheduledIdSlider++) % 10);
-  }
-
-  it('Can schedule a transfer of an owned token with delay', async () => {
-    await usingApi(async () => {
-      const nftCollectionId = await createCollectionExpectSuccess();
-      const newNftTokenId = await createItemExpectSuccess(alice, nftCollectionId, 'NFT');
-      await setCollectionSponsorExpectSuccess(nftCollectionId, alice.address);
-      await confirmSponsorshipExpectSuccess(nftCollectionId);
-
-      await scheduleTransferAndWaitExpectSuccess(nftCollectionId, newNftTokenId, alice, bob, 1, 4, makeScheduledId());
-    });
-  });
-
-  it('Can transfer funds periodically', async () => {
-    await usingApi(async () => {
-      const waitForBlocks = 4;
-      const period = 2;
-      await scheduleTransferFundsPeriodicExpectSuccess(1n * UNIQUE, alice, bob, waitForBlocks, makeScheduledId(), period, 2);
-      const bobsBalanceBefore = await getFreeBalance(bob);
-
-      // discounting already waited-for operations
-      await waitNewBlocks(waitForBlocks - 2);
-      const bobsBalanceAfterFirst = await getFreeBalance(bob);
-      expect(bobsBalanceAfterFirst > bobsBalanceBefore).to.be.true;
-
-      await waitNewBlocks(period);
-      const bobsBalanceAfterSecond = await getFreeBalance(bob);
-      expect(bobsBalanceAfterSecond > bobsBalanceAfterFirst).to.be.true;
-    });
-  });
-
-  it('Can sponsor scheduling a transaction', async () => {
-    const collectionId = await createCollectionExpectSuccess();
-    await setCollectionSponsorExpectSuccess(collectionId, bob.address);
-    await confirmSponsorshipExpectSuccess(collectionId, '//Bob');
-
-    await usingApi(async () => {
-      const tokenId = await createItemExpectSuccess(alice, collectionId, 'NFT', alice.address);
-
-      const bobBalanceBefore = await getFreeBalance(bob);
-      const waitForBlocks = 4;
-      // no need to wait to check, fees must be deducted on scheduling, immediately
-      await scheduleTransferExpectSuccess(collectionId, tokenId, alice, bob, 0, waitForBlocks, makeScheduledId());
-      const bobBalanceAfter = await getFreeBalance(bob);
-      // expect(aliceBalanceAfter == aliceBalanceBefore).to.be.true;
-      expect(bobBalanceAfter < bobBalanceBefore).to.be.true;
-      // wait for sequentiality matters
-      await waitNewBlocks(waitForBlocks - 1);
-    });
-  });
-
-  it('Schedules and dispatches a transaction even if the caller has no funds at the time of the dispatch', async () => {
-    await usingApi(async (api, privateKeyWrapper) => {
-      // Find an empty, unused account
-      const zeroBalance = await findUnusedAddress(api, privateKeyWrapper);
-
-      const collectionId = await createCollectionExpectSuccess();
-
-      // Add zeroBalance address to allow list
-      await enablePublicMintingExpectSuccess(alice, collectionId);
-      await addToAllowListExpectSuccess(alice, collectionId, zeroBalance.address);
-
-      // Grace zeroBalance with money, enough to cover future transactions
-      const balanceTx = api.tx.balances.transfer(zeroBalance.address, 1n * UNIQUE);
-      await submitTransactionAsync(alice, balanceTx);
-
-      // Mint a fresh NFT
-      const tokenId = await createItemExpectSuccess(zeroBalance, collectionId, 'NFT');
-
-      // Schedule transfer of the NFT a few blocks ahead
-      const waitForBlocks = 5;
-      await scheduleTransferExpectSuccess(collectionId, tokenId, zeroBalance, alice, 1, waitForBlocks, makeScheduledId());
-
-      // Get rid of the account's funds before the scheduled transaction takes place
-      const balanceTx2 = api.tx.balances.transfer(alice.address, UNIQUE * 68n / 100n);
-      const events = await submitTransactionAsync(zeroBalance, balanceTx2);
-      expect(getGenericResult(events).success).to.be.true;
-      /*const emptyBalanceTx = api.tx.balances.setBalance(zeroBalance.address, 0, 0); // do not null reserved?
-      const sudoTx = api.tx.sudo.sudo(emptyBalanceTx as any);
-      const events = await submitTransactionAsync(alice, sudoTx);
-      expect(getGenericResult(events).success).to.be.true;*/
-
-      // Wait for a certain number of blocks, discarding the ones that already happened while accepting the late transactions
-      await waitNewBlocks(waitForBlocks - 3);
-
-      expect(await getTokenOwner(api, collectionId, tokenId)).to.be.deep.equal(normalizeAccountId(alice.address));
-    });
-  });
-
-  it('Sponsor going bankrupt does not impact a scheduled transaction', async () => {
-    const collectionId = await createCollectionExpectSuccess();
-
-    await usingApi(async (api, privateKeyWrapper) => {
-      const zeroBalance = await findUnusedAddress(api, privateKeyWrapper);
-      const balanceTx = api.tx.balances.transfer(zeroBalance.address, 1n * UNIQUE);
-      await submitTransactionAsync(alice, balanceTx);
-
-      await setCollectionSponsorExpectSuccess(collectionId, zeroBalance.address);
-      await confirmSponsorshipByKeyExpectSuccess(collectionId, zeroBalance);
-
-      const tokenId = await createItemExpectSuccess(alice, collectionId, 'NFT', alice.address);
-
-      const waitForBlocks = 5;
-      await scheduleTransferExpectSuccess(collectionId, tokenId, alice, zeroBalance, 1, waitForBlocks, makeScheduledId());
-
-      const emptyBalanceSponsorTx = api.tx.balances.setBalance(zeroBalance.address, 0, 0);
-      const sudoTx = api.tx.sudo.sudo(emptyBalanceSponsorTx as any);
-      const events = await submitTransactionAsync(alice, sudoTx);
-      expect(getGenericResult(events).success).to.be.true;
-
-      // Wait for a certain number of blocks, save for the ones that already happened while accepting the late transactions
-      await waitNewBlocks(waitForBlocks - 3);
-
-      expect(await getTokenOwner(api, collectionId, tokenId)).to.be.deep.equal(normalizeAccountId(zeroBalance.address));
-    });
-  });
-
-  it.skip('Exceeding sponsor rate limit without having enough funds prevents scheduling a periodic transaction', async () => {
-    const collectionId = await createCollectionExpectSuccess();
-    await setCollectionSponsorExpectSuccess(collectionId, bob.address);
-    await confirmSponsorshipExpectSuccess(collectionId, '//Bob');
-
-    await usingApi(async (api, privateKeyWrapper) => {
-      const zeroBalance = await findUnusedAddress(api, privateKeyWrapper);
-
-      await enablePublicMintingExpectSuccess(alice, collectionId);
-      await addToAllowListExpectSuccess(alice, collectionId, zeroBalance.address);
-
-      const bobBalanceBefore = await getFreeBalance(bob);
-
-      const createData = {nft: {const_data: [], variable_data: []}};
-      const creationTx = api.tx.unique.createItem(collectionId, normalizeAccountId(zeroBalance), createData as any);
-
-      /*const badTransaction = async function () {
-        await submitTransactionExpectFailAsync(zeroBalance, zeroToAlice);
-      };
-      await expect(badTransaction()).to.be.rejectedWith('Inability to pay some fees');*/
-
-      await scheduleExpectFailure(creationTx, zeroBalance, 3, makeScheduledId(), 1, 3);
-
-      expect(await getFreeBalance(bob)).to.be.equal(bobBalanceBefore);
-    });
-  });
-});
deletedtests/src/setChainLimits.test.tsdiffbeforeafterboth
--- a/tests/src/setChainLimits.test.ts
+++ /dev/null
@@ -1,64 +0,0 @@
-// Copyright 2019-2022 Unique Network (Gibraltar) Ltd.
-// This file is part of Unique Network.
-
-// Unique Network is free software: you can redistribute it and/or modify
-// it under the terms of the GNU General Public License as published by
-// the Free Software Foundation, either version 3 of the License, or
-// (at your option) any later version.
-
-// Unique Network is distributed in the hope that it will be useful,
-// but WITHOUT ANY WARRANTY; without even the implied warranty of
-// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
-// GNU General Public License for more details.
-
-// You should have received a copy of the GNU General Public License
-// along with Unique Network. If not, see <http://www.gnu.org/licenses/>.
-
-import {IKeyringPair} from '@polkadot/types/types';
-import usingApi from './substrate/substrate-api';
-import {
-  createCollectionExpectSuccess,
-  addCollectionAdminExpectSuccess,
-  setChainLimitsExpectFailure,
-  IChainLimits,
-} from './util/helpers';
-
-// todo:playgrounds skipped ~ postponed
-describe.skip('Negative Integration Test setChainLimits', () => {
-  let alice: IKeyringPair;
-  let bob: IKeyringPair;
-  let dave: IKeyringPair;
-  let limits: IChainLimits;
-
-  before(async () => {
-    await usingApi(async (api, privateKeyWrapper) => {
-      alice = privateKeyWrapper('//Alice');
-      bob = privateKeyWrapper('//Bob');
-      dave = privateKeyWrapper('//Dave');
-      limits = {
-        collectionNumbersLimit : 1,
-        accountTokenOwnershipLimit: 1,
-        collectionsAdminsLimit: 1,
-        customDataLimit: 1,
-        nftSponsorTransferTimeout: 1,
-        fungibleSponsorTransferTimeout: 1,
-        refungibleSponsorTransferTimeout: 1,
-      };
-    });
-  });
-
-  it('Collection owner cannot set chain limits', async () => {
-    await createCollectionExpectSuccess({mode: {type: 'NFT'}});
-    await setChainLimitsExpectFailure(alice, limits);
-  });
-
-  it('Collection admin cannot set chain limits', async () => {
-    const collectionId = await createCollectionExpectSuccess({mode: {type: 'NFT'}});
-    await addCollectionAdminExpectSuccess(alice, collectionId, bob.address);
-    await setChainLimitsExpectFailure(bob, limits);
-  });
-
-  it('Regular user cannot set chain limits', async () => {
-    await setChainLimitsExpectFailure(dave, limits);
-  });
-});
deletedtests/src/setContractSponsoringRateLimit.test.tsdiffbeforeafterboth
--- a/tests/src/setContractSponsoringRateLimit.test.ts
+++ /dev/null
@@ -1,80 +0,0 @@
-// Copyright 2019-2022 Unique Network (Gibraltar) Ltd.
-// This file is part of Unique Network.
-
-// Unique Network is free software: you can redistribute it and/or modify
-// it under the terms of the GNU General Public License as published by
-// the Free Software Foundation, either version 3 of the License, or
-// (at your option) any later version.
-
-// Unique Network is distributed in the hope that it will be useful,
-// but WITHOUT ANY WARRANTY; without even the implied warranty of
-// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
-// GNU General Public License for more details.
-
-// You should have received a copy of the GNU General Public License
-// along with Unique Network. If not, see <http://www.gnu.org/licenses/>.
-
-import {IKeyringPair} from '@polkadot/types/types';
-import usingApi from './substrate/substrate-api';
-import waitNewBlocks from './substrate/wait-new-blocks';
-import {deployFlipper, toggleFlipValueExpectFailure, toggleFlipValueExpectSuccess} from './util/contracthelpers';
-import {
-  enableContractSponsoringExpectSuccess,
-  findUnusedAddress,
-  setContractSponsoringRateLimitExpectFailure,
-  setContractSponsoringRateLimitExpectSuccess,
-} from './util/helpers';
-
-// todo:playgrounds skipped~postponed test
-describe.skip('Integration Test setContractSponsoringRateLimit', () => {
-  it('ensure sponsored contract can\'t be called twice without pause for free', async () => {
-    await usingApi(async (api, privateKeyWrapper) => {
-      const user = await findUnusedAddress(api, privateKeyWrapper);
-
-      const [flipper, deployer] = await deployFlipper(api, privateKeyWrapper);
-      await enableContractSponsoringExpectSuccess(deployer, flipper.address, true);
-      await setContractSponsoringRateLimitExpectSuccess(deployer, flipper.address, 10);
-      await toggleFlipValueExpectSuccess(user, flipper);
-      await toggleFlipValueExpectFailure(user, flipper);
-    });
-  });
-
-  it('ensure sponsored contract can be called twice with pause for free', async () => {
-    await usingApi(async (api, privateKeyWrapper) => {
-      const user = await findUnusedAddress(api, privateKeyWrapper);
-
-      const [flipper, deployer] = await deployFlipper(api, privateKeyWrapper);
-      await enableContractSponsoringExpectSuccess(deployer, flipper.address, true);
-      await setContractSponsoringRateLimitExpectSuccess(deployer, flipper.address, 1);
-      await toggleFlipValueExpectSuccess(user, flipper);
-      await waitNewBlocks(api, 1);
-      await toggleFlipValueExpectSuccess(user, flipper);
-    });
-  });
-});
-
-describe.skip('Negative Integration Test setContractSponsoringRateLimit', () => {
-  let alice: IKeyringPair;
-
-  before(async () => {
-    await usingApi(async (api, privateKeyWrapper) => {
-      alice = privateKeyWrapper('//Alice');
-    });
-  });
-
-  it('fails when called for non-contract address', async () => {
-    await usingApi(async (api, privateKeyWrapper) => {
-      const user = await findUnusedAddress(api, privateKeyWrapper);
-
-      await setContractSponsoringRateLimitExpectFailure(alice, user.address, 1);
-    });
-  });
-
-  it('fails when called by non-owning user', async () => {
-    await usingApi(async (api, privateKeyWrapper) => {
-      const [flipper] = await deployFlipper(api, privateKeyWrapper);
-
-      await setContractSponsoringRateLimitExpectFailure(alice, flipper.address, 1);
-    });
-  });
-});
modifiedtests/src/substrate/get-balance.tsdiffbeforeafterboth
--- a/tests/src/substrate/get-balance.ts
+++ b/tests/src/substrate/get-balance.ts
@@ -19,7 +19,7 @@
 import promisifySubstrate from './promisify-substrate';
 import {IKeyringPair} from '@polkadot/types/types';
 import {submitTransactionAsync} from './substrate-api';
-import {getGenericResult} from '../util/helpers';
+import {getGenericResult} from '../deprecated-helpers/helpers';
 import {expect} from 'chai';
 
 export default async function getBalance(api: ApiPromise, accounts: string[]): Promise<Array<bigint>> {
deletedtests/src/toggleContractAllowList.test.tsdiffbeforeafterboth
--- a/tests/src/toggleContractAllowList.test.ts
+++ /dev/null
@@ -1,167 +0,0 @@
-// Copyright 2019-2022 Unique Network (Gibraltar) Ltd.
-// This file is part of Unique Network.
-
-// Unique Network is free software: you can redistribute it and/or modify
-// it under the terms of the GNU General Public License as published by
-// the Free Software Foundation, either version 3 of the License, or
-// (at your option) any later version.
-
-// Unique Network is distributed in the hope that it will be useful,
-// but WITHOUT ANY WARRANTY; without even the implied warranty of
-// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
-// GNU General Public License for more details.
-
-// You should have received a copy of the GNU General Public License
-// along with Unique Network. If not, see <http://www.gnu.org/licenses/>.
-
-import chai from 'chai';
-import chaiAsPromised from 'chai-as-promised';
-import usingApi, {submitTransactionAsync, submitTransactionExpectFailAsync} from './substrate/substrate-api';
-import {
-  deployFlipper,
-  getFlipValue,
-} from './util/contracthelpers';
-import {
-  getGenericResult,
-} from './util/helpers';
-
-chai.use(chaiAsPromised);
-const expect = chai.expect;
-
-const value = 0;
-const gasLimit = 3000n * 1000000n;
-
-// todo:playgrounds skipped ~ postpone
-describe.skip('Integration Test toggleContractAllowList', () => {
-
-  it('Enable allow list contract mode', async () => {
-    await usingApi(async (api, privateKeyWrapper) => {
-      const [contract, deployer] = await deployFlipper(api, privateKeyWrapper);
-
-      const enabledBefore = (await api.query.unique.contractAllowListEnabled(contract.address)).toJSON();
-      const enableAllowListTx = api.tx.unique.toggleContractAllowList(contract.address, true);
-      const enableEvents = await submitTransactionAsync(deployer, enableAllowListTx);
-      const enabled = (await api.query.unique.contractAllowListEnabled(contract.address)).toJSON();
-
-      expect(getGenericResult(enableEvents).success).to.be.true;
-      expect(enabledBefore).to.be.false;
-      expect(enabled).to.be.true;
-    });
-  });
-
-  it('Only allowlisted account can call contract', async () => {
-    await usingApi(async (api, privateKeyWrapper) => {
-      const bob = privateKeyWrapper('//Bob');
-
-      const [contract, deployer] = await deployFlipper(api, privateKeyWrapper);
-
-      let flipValueBefore = await getFlipValue(contract, deployer);
-      const flip = contract.tx.flip({value, gasLimit});
-      await submitTransactionAsync(bob, flip);
-      const flipValueAfter = await getFlipValue(contract,deployer);
-      expect(flipValueAfter).to.be.eq(!flipValueBefore, 'Anyone can call new contract.');
-
-      const deployerCanFlip = async () => {
-        const flipValueBefore = await getFlipValue(contract, deployer);
-        const deployerFlip = contract.tx.flip({value, gasLimit});
-        await submitTransactionAsync(deployer, deployerFlip);
-        const aliceFlip1Response = await getFlipValue(contract, deployer);
-        expect(aliceFlip1Response).to.be.eq(!flipValueBefore, 'Deployer always can flip.');
-      };
-      await deployerCanFlip();
-
-      flipValueBefore = await getFlipValue(contract, deployer);
-      const enableAllowListTx = api.tx.unique.toggleContractAllowList(contract.address, true);
-      await submitTransactionAsync(deployer, enableAllowListTx);
-      const flipWithEnabledAllowList = contract.tx.flip({value, gasLimit});
-      await expect(submitTransactionExpectFailAsync(bob, flipWithEnabledAllowList)).to.be.rejected;
-      const flipValueAfterEnableAllowList = await getFlipValue(contract, deployer);
-      expect(flipValueAfterEnableAllowList).to.be.eq(flipValueBefore, 'Enabling allowlist doesn\'t make it possible to call contract for everyone.');
-
-      await deployerCanFlip();
-
-      flipValueBefore = await getFlipValue(contract, deployer);
-      const addBobToAllowListTx = api.tx.unique.addToContractAllowList(contract.address, bob.address);
-      await submitTransactionAsync(deployer, addBobToAllowListTx);
-      const flipWithAllowlistedBob = contract.tx.flip({value, gasLimit});
-      await submitTransactionAsync(bob, flipWithAllowlistedBob);
-      const flipAfterAllowListed = await getFlipValue(contract,deployer);
-      expect(flipAfterAllowListed).to.be.eq(!flipValueBefore, 'Bob was allowlisted, now he can flip.');
-
-      await deployerCanFlip();
-
-      flipValueBefore = await getFlipValue(contract, deployer);
-      const removeBobFromAllowListTx = api.tx.unique.removeFromContractAllowList(contract.address, bob.address);
-      await submitTransactionAsync(deployer, removeBobFromAllowListTx);
-      const bobRemoved = contract.tx.flip({value, gasLimit});
-      await expect(submitTransactionExpectFailAsync(bob, bobRemoved)).to.be.rejected;
-      const afterBobRemoved = await getFlipValue(contract, deployer);
-      expect(afterBobRemoved).to.be.eq(flipValueBefore, 'Bob can\'t call contract, now when he is removeed from allow list.');
-
-      await deployerCanFlip();
-
-      flipValueBefore = await getFlipValue(contract, deployer);
-      const disableAllowListTx = api.tx.unique.toggleContractAllowList(contract.address, false);
-      await submitTransactionAsync(deployer, disableAllowListTx);
-      const allowListDisabledFlip = contract.tx.flip({value, gasLimit});
-      await submitTransactionAsync(bob, allowListDisabledFlip);
-      const afterAllowListDisabled = await getFlipValue(contract,deployer);
-      expect(afterAllowListDisabled).to.be.eq(!flipValueBefore, 'Anyone can call contract with disabled allowlist.');
-
-    });
-  });
-
-  it('Enabling allow list repeatedly should not produce errors', async () => {
-    await usingApi(async (api, privateKeyWrapper) => {
-      const [contract, deployer] = await deployFlipper(api, privateKeyWrapper);
-
-      const enabledBefore = (await api.query.unique.contractAllowListEnabled(contract.address)).toJSON();
-      const enableAllowListTx = api.tx.unique.toggleContractAllowList(contract.address, true);
-      const enableEvents = await submitTransactionAsync(deployer, enableAllowListTx);
-      const enabled = (await api.query.unique.contractAllowListEnabled(contract.address)).toJSON();
-      const enableAgainEvents = await submitTransactionAsync(deployer, enableAllowListTx);
-      const enabledAgain = (await api.query.unique.contractAllowListEnabled(contract.address)).toJSON();
-
-      expect(getGenericResult(enableEvents).success).to.be.true;
-      expect(enabledBefore).to.be.false;
-      expect(enabled).to.be.true;
-      expect(getGenericResult(enableAgainEvents).success).to.be.true;
-      expect(enabledAgain).to.be.true;
-    });
-  });
-
-});
-
-describe.skip('Negative Integration Test toggleContractAllowList', () => {
-
-  it('Enable allow list for a non-contract', async () => {
-    await usingApi(async (api, privateKeyWrapper) => {
-      const alice = privateKeyWrapper('//Alice');
-      const bobGuineaPig = privateKeyWrapper('//Bob');
-
-      const enabledBefore = (await api.query.unique.contractAllowListEnabled(bobGuineaPig.address)).toJSON();
-      const enableAllowListTx = api.tx.unique.toggleContractAllowList(bobGuineaPig.address, true);
-      await expect(submitTransactionExpectFailAsync(alice, enableAllowListTx)).to.be.rejected;
-      const enabled = (await api.query.unique.contractAllowListEnabled(bobGuineaPig.address)).toJSON();
-
-      expect(enabledBefore).to.be.false;
-      expect(enabled).to.be.false;
-    });
-  });
-
-  it('Enable allow list using a non-owner address', async () => {
-    await usingApi(async (api, privateKeyWrapper) => {
-      const bob = privateKeyWrapper('//Bob');
-      const [contract] = await deployFlipper(api, privateKeyWrapper);
-
-      const enabledBefore = (await api.query.unique.contractAllowListEnabled(contract.address)).toJSON();
-      const enableAllowListTx = api.tx.unique.toggleContractAllowList(contract.address, true);
-      await expect(submitTransactionExpectFailAsync(bob, enableAllowListTx)).to.be.rejected;
-      const enabled = (await api.query.unique.contractAllowListEnabled(contract.address)).toJSON();
-
-      expect(enabledBefore).to.be.false;
-      expect(enabled).to.be.false;
-    });
-  });
-
-});
modifiedtests/src/transfer.nload.tsdiffbeforeafterboth
--- a/tests/src/transfer.nload.ts
+++ b/tests/src/transfer.nload.ts
@@ -18,10 +18,24 @@
 import {IKeyringPair} from '@polkadot/types/types';
 import usingApi, {submitTransactionAsync} from './substrate/substrate-api';
 import waitNewBlocks from './substrate/wait-new-blocks';
-import {findUnusedAddresses} from './util/helpers';
 import * as cluster from 'cluster';
 import os from 'os';
 
+async function findUnusedAddress(api: ApiPromise, privateKeyWrapper: (account: string) => IKeyringPair, seedAddition = ''): Promise<IKeyringPair> {
+  let bal = 0n;
+  let unused;
+  do {
+    const randomSeed = 'seed' + Math.floor(Math.random() * Math.floor(10000)) + seedAddition;
+    unused = privateKeyWrapper(`//${randomSeed}`);
+    bal = (await api.query.system.account(unused.address)).data.free.toBigInt();
+  } while (bal !== 0n);
+  return unused;
+}
+
+function findUnusedAddresses(api: ApiPromise, privateKeyWrapper: (account: string) => IKeyringPair, amount: number): Promise<IKeyringPair[]> {
+  return Promise.all(new Array(amount).fill(null).map(() => findUnusedAddress(api, privateKeyWrapper, '_' + Date.now())));
+}
+
 // Innacurate transfer fee
 const FEE = 10n ** 8n;
 
deletedtests/src/transfer_contract/metadata.jsondiffbeforeafterboth
--- a/tests/src/transfer_contract/metadata.json
+++ /dev/null
@@ -1,469 +0,0 @@
-{
-  "metadataVersion": "0.1.0",
-  "source": {
-    "hash": "0xc6c3f47adeafe86d1674ed72c7179605787842f2f05a2d7da0dbabf3c4fa1aa8",
-    "language": "ink! 3.0.0-rc3",
-    "compiler": "rustc 1.52.0-nightly"
-  },
-  "contract": {
-    "name": "nft_transfer",
-    "version": "0.1.0",
-    "authors": [
-      "[Greg Zaitsev] <[your_email]>"
-    ]
-  },
-  "spec": {
-    "constructors": [
-      {
-        "args": [],
-        "docs": [
-          "Default Constructor",
-          "",
-          "Constructors can delegate to other constructors."
-        ],
-        "name": [
-          "default"
-        ],
-        "selector": "0xed4b9d1b"
-      }
-    ],
-    "docs": [],
-    "events": [],
-    "messages": [
-      {
-        "args": [
-          {
-            "name": "recipient",
-            "type": {
-              "displayName": [
-                "AccountId"
-              ],
-              "type": 1
-            }
-          },
-          {
-            "name": "collection_id",
-            "type": {
-              "displayName": [
-                "u32"
-              ],
-              "type": 4
-            }
-          },
-          {
-            "name": "token_id",
-            "type": {
-              "displayName": [
-                "u32"
-              ],
-              "type": 4
-            }
-          },
-          {
-            "name": "amount",
-            "type": {
-              "displayName": [
-                "u128"
-              ],
-              "type": 5
-            }
-          }
-        ],
-        "docs": [
-          " Transfer one NFT token"
-        ],
-        "mutates": true,
-        "name": [
-          "transfer"
-        ],
-        "payable": false,
-        "returnType": null,
-        "selector": "0x84a15da1"
-      },
-      {
-        "args": [
-          {
-            "name": "recipient",
-            "type": {
-              "displayName": [
-                "AccountId"
-              ],
-              "type": 1
-            }
-          },
-          {
-            "name": "collection_id",
-            "type": {
-              "displayName": [
-                "u32"
-              ],
-              "type": 4
-            }
-          },
-          {
-            "name": "data",
-            "type": {
-              "displayName": [
-                "CreateItemData"
-              ],
-              "type": 6
-            }
-          }
-        ],
-        "docs": [],
-        "mutates": true,
-        "name": [
-          "create_item"
-        ],
-        "payable": false,
-        "returnType": null,
-        "selector": "0xd7c3f083"
-      },
-      {
-        "args": [
-          {
-            "name": "owner",
-            "type": {
-              "displayName": [
-                "AccountId"
-              ],
-              "type": 1
-            }
-          },
-          {
-            "name": "collection_id",
-            "type": {
-              "displayName": [
-                "u32"
-              ],
-              "type": 4
-            }
-          },
-          {
-            "name": "data",
-            "type": {
-              "displayName": [
-                "Vec"
-              ],
-              "type": 8
-            }
-          }
-        ],
-        "docs": [],
-        "mutates": true,
-        "name": [
-          "create_multiple_items"
-        ],
-        "payable": false,
-        "returnType": null,
-        "selector": "0x15f9a1eb"
-      },
-      {
-        "args": [
-          {
-            "name": "spender",
-            "type": {
-              "displayName": [
-                "AccountId"
-              ],
-              "type": 1
-            }
-          },
-          {
-            "name": "collection_id",
-            "type": {
-              "displayName": [
-                "u32"
-              ],
-              "type": 4
-            }
-          },
-          {
-            "name": "item_id",
-            "type": {
-              "displayName": [
-                "u32"
-              ],
-              "type": 4
-            }
-          },
-          {
-            "name": "amount",
-            "type": {
-              "displayName": [
-                "u128"
-              ],
-              "type": 5
-            }
-          }
-        ],
-        "docs": [],
-        "mutates": true,
-        "name": [
-          "approve"
-        ],
-        "payable": false,
-        "returnType": null,
-        "selector": "0x681266a0"
-      },
-      {
-        "args": [
-          {
-            "name": "owner",
-            "type": {
-              "displayName": [
-                "AccountId"
-              ],
-              "type": 1
-            }
-          },
-          {
-            "name": "recipient",
-            "type": {
-              "displayName": [
-                "AccountId"
-              ],
-              "type": 1
-            }
-          },
-          {
-            "name": "collection_id",
-            "type": {
-              "displayName": [
-                "u32"
-              ],
-              "type": 4
-            }
-          },
-          {
-            "name": "item_id",
-            "type": {
-              "displayName": [
-                "u32"
-              ],
-              "type": 4
-            }
-          },
-          {
-            "name": "amount",
-            "type": {
-              "displayName": [
-                "u128"
-              ],
-              "type": 5
-            }
-          }
-        ],
-        "docs": [],
-        "mutates": true,
-        "name": [
-          "transfer_from"
-        ],
-        "payable": false,
-        "returnType": null,
-        "selector": "0x0b396f18"
-      },
-      {
-        "args": [
-          {
-            "name": "collection_id",
-            "type": {
-              "displayName": [
-                "u32"
-              ],
-              "type": 4
-            }
-          },
-          {
-            "name": "item_id",
-            "type": {
-              "displayName": [
-                "u32"
-              ],
-              "type": 4
-            }
-          },
-          {
-            "name": "data",
-            "type": {
-              "displayName": [
-                "Vec"
-              ],
-              "type": 7
-            }
-          }
-        ],
-        "docs": [],
-        "mutates": true,
-        "name": [
-          "set_variable_meta_data"
-        ],
-        "payable": false,
-        "returnType": null,
-        "selector": "0xb0b26da2"
-      },
-      {
-        "args": [
-          {
-            "name": "collection_id",
-            "type": {
-              "displayName": [
-                "u32"
-              ],
-              "type": 4
-            }
-          },
-          {
-            "name": "address",
-            "type": {
-              "displayName": [
-                "AccountId"
-              ],
-              "type": 1
-            }
-          },
-          {
-            "name": "allowlisted",
-            "type": {
-              "displayName": [
-                "bool"
-              ],
-              "type": 9
-            }
-          }
-        ],
-        "docs": [],
-        "mutates": true,
-        "name": [
-          "toggle_allow_list"
-        ],
-        "payable": false,
-        "returnType": null,
-        "selector": "0x98574dac"
-      }
-    ]
-  },
-  "storage": {
-    "struct": {
-      "fields": []
-    }
-  },
-  "types": [
-    {
-      "def": {
-        "composite": {
-          "fields": [
-            {
-              "type": 2,
-              "typeName": "[u8; 32]"
-            }
-          ]
-        }
-      },
-      "path": [
-        "ink_env",
-        "types",
-        "AccountId"
-      ]
-    },
-    {
-      "def": {
-        "array": {
-          "len": 32,
-          "type": 3
-        }
-      }
-    },
-    {
-      "def": {
-        "primitive": "u8"
-      }
-    },
-    {
-      "def": {
-        "primitive": "u32"
-      }
-    },
-    {
-      "def": {
-        "primitive": "u128"
-      }
-    },
-    {
-      "def": {
-        "variant": {
-          "variants": [
-            {
-              "fields": [
-                {
-                  "name": "const_data",
-                  "type": 7,
-                  "typeName": "Vec<u8>"
-                },
-                {
-                  "name": "variable_data",
-                  "type": 7,
-                  "typeName": "Vec<u8>"
-                }
-              ],
-              "name": "Nft"
-            },
-            {
-              "fields": [
-                {
-                  "name": "value",
-                  "type": 5,
-                  "typeName": "u128"
-                }
-              ],
-              "name": "Fungible"
-            },
-            {
-              "fields": [
-                {
-                  "name": "const_data",
-                  "type": 7,
-                  "typeName": "Vec<u8>"
-                },
-                {
-                  "name": "variable_data",
-                  "type": 7,
-                  "typeName": "Vec<u8>"
-                },
-                {
-                  "name": "pieces",
-                  "type": 5,
-                  "typeName": "u128"
-                }
-              ],
-              "name": "ReFungible"
-            }
-          ]
-        }
-      },
-      "path": [
-        "nft_transfer",
-        "CreateItemData"
-      ]
-    },
-    {
-      "def": {
-        "sequence": {
-          "type": 3
-        }
-      }
-    },
-    {
-      "def": {
-        "sequence": {
-          "type": 6
-        }
-      }
-    },
-    {
-      "def": {
-        "primitive": "bool"
-      }
-    }
-  ]
-}
\ No newline at end of file
deletedtests/src/transfer_contract/nft_transfer.wasmdiffbeforeafterboth

binary blob — no preview

modifiedtests/src/tx-version-presence.test.tsdiffbeforeafterboth
--- a/tests/src/tx-version-presence.test.ts
+++ b/tests/src/tx-version-presence.test.ts
@@ -22,7 +22,7 @@
 describe('TxVersion is present', () => {
   before(async () => {
     await usingPlaygrounds(async helper => {
-      metadata = await helper.api!.rpc.state.getMetadata();
+      metadata = await helper.callRpc('api.rpc.state.getMetadata', []);
     });
   });
 
deletedtests/src/util/contracthelpers.tsdiffbeforeafterboth
--- a/tests/src/util/contracthelpers.ts
+++ /dev/null
@@ -1,114 +0,0 @@
-// Copyright 2019-2022 Unique Network (Gibraltar) Ltd.
-// This file is part of Unique Network.
-
-// Unique Network is free software: you can redistribute it and/or modify
-// it under the terms of the GNU General Public License as published by
-// the Free Software Foundation, either version 3 of the License, or
-// (at your option) any later version.
-
-// Unique Network is distributed in the hope that it will be useful,
-// but WITHOUT ANY WARRANTY; without even the implied warranty of
-// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
-// GNU General Public License for more details.
-
-// You should have received a copy of the GNU General Public License
-// along with Unique Network. If not, see <http://www.gnu.org/licenses/>.
-
-import chai from 'chai';
-import chaiAsPromised from 'chai-as-promised';
-import {submitTransactionAsync, submitTransactionExpectFailAsync} from '../substrate/substrate-api';
-import fs from 'fs';
-import {Abi, CodePromise, ContractPromise as Contract} from '@polkadot/api-contract';
-import {IKeyringPair} from '@polkadot/types/types';
-import {ApiPromise} from '@polkadot/api';
-
-chai.use(chaiAsPromised);
-const expect = chai.expect;
-import {findUnusedAddress, getGenericResult} from '../util/helpers';
-
-const value = 0;
-const gasLimit = '200000000000';
-const endowment = '100000000000000000';
-
-/* eslint no-async-promise-executor: "off" */
-function deployContract(alice: IKeyringPair, code: CodePromise, constructor = 'default', ...args: any[]): Promise<Contract> {
-  return new Promise<Contract>(async (resolve) => {
-    const unsub = await (code as any)
-      .tx[constructor]({value: endowment, gasLimit}, ...args)
-      .signAndSend(alice, (result: any) => {
-        if (result.status.isInBlock || result.status.isFinalized) {
-          // here we have an additional field in the result, containing the blueprint
-          resolve((result as any).contract);
-          unsub();
-        }
-      });
-  });
-}
-
-async function prepareDeployer(api: ApiPromise, privateKeyWrapper: (account: string) => IKeyringPair) {
-  // Find unused address
-  const deployer = await findUnusedAddress(api, privateKeyWrapper);
-
-  // Transfer balance to it
-  const alice = privateKeyWrapper('//Alice');
-  const amount = BigInt(endowment) + 10n**15n;
-  const tx = api.tx.balances.transfer(deployer.address, amount);
-  await submitTransactionAsync(alice, tx);
-
-  return deployer;
-}
-
-export async function deployFlipper(api: ApiPromise, privateKeyWrapper: (account: string) => IKeyringPair): Promise<[Contract, IKeyringPair]> {
-  const metadata = JSON.parse(fs.readFileSync('./src/flipper/metadata.json').toString('utf-8'));
-  const abi = new Abi(metadata);
-
-  const deployer = await prepareDeployer(api, privateKeyWrapper);
-
-  const wasm = fs.readFileSync('./src/flipper/flipper.wasm');
-
-  const code = new CodePromise(api, abi, wasm);
-
-  const contract = (await deployContract(deployer, code, 'new', true)) as Contract;
-
-  const initialGetResponse = await getFlipValue(contract, deployer);
-  expect(initialGetResponse).to.be.true;
-
-  return [contract, deployer];
-}
-
-export async function getFlipValue(contract: Contract, deployer: IKeyringPair) {
-  const result = await contract.query.get(deployer.address, {value, gasLimit});
-
-  if(!result.result.isOk) {
-    throw 'Failed to get flipper value';
-  }
-  return (result.result.asOk.data[0] == 0x00) ? false : true;
-}
-
-export async function toggleFlipValueExpectSuccess(sender: IKeyringPair, contract: Contract) {
-  const tx = contract.tx.flip({value, gasLimit});
-  const events = await submitTransactionAsync(sender, tx);
-  const result = getGenericResult(events);
-
-  expect(result.success).to.be.true;
-}
-
-export async function toggleFlipValueExpectFailure(sender: IKeyringPair, contract: Contract) {
-  const tx = contract.tx.flip({value, gasLimit});
-  await expect(submitTransactionExpectFailAsync(sender, tx)).to.be.rejected;
-}
-
-export async function deployTransferContract(api: ApiPromise, privateKeyWrapper: (account: string) => IKeyringPair): Promise<[Contract, IKeyringPair]> {
-  const metadata = JSON.parse(fs.readFileSync('./src/transfer_contract/metadata.json').toString('utf-8'));
-  const abi = new Abi(metadata);
-
-  const deployer = await prepareDeployer(api, privateKeyWrapper);
-
-  const wasm = fs.readFileSync('./src/transfer_contract/nft_transfer.wasm');
-
-  const code = new CodePromise(api, abi, wasm);
-
-  const contract = await deployContract(deployer, code);
-
-  return [contract, deployer];
-}
deletedtests/src/util/helpers.tsdiffbeforeafterboth
--- a/tests/src/util/helpers.ts
+++ /dev/null
@@ -1,1879 +0,0 @@
-// Copyright 2019-2022 Unique Network (Gibraltar) Ltd.
-// This file is part of Unique Network.
-
-// Unique Network is free software: you can redistribute it and/or modify
-// it under the terms of the GNU General Public License as published by
-// the Free Software Foundation, either version 3 of the License, or
-// (at your option) any later version.
-
-// Unique Network is distributed in the hope that it will be useful,
-// but WITHOUT ANY WARRANTY; without even the implied warranty of
-// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
-// GNU General Public License for more details.
-
-// You should have received a copy of the GNU General Public License
-// along with Unique Network. If not, see <http://www.gnu.org/licenses/>.
-
-import '../interfaces/augment-api-rpc';
-import '../interfaces/augment-api-query';
-import {ApiPromise, Keyring} from '@polkadot/api';
-import type {AccountId, EventRecord, Event, BlockNumber} from '@polkadot/types/interfaces';
-import type {GenericEventData} from '@polkadot/types';
-import {AnyTuple, IEvent, IKeyringPair} from '@polkadot/types/types';
-import {evmToAddress} from '@polkadot/util-crypto';
-import {AnyNumber} from '@polkadot/types-codec/types';
-import BN from 'bn.js';
-import chai from 'chai';
-import chaiAsPromised from 'chai-as-promised';
-import {default as usingApi, executeTransaction, submitTransactionAsync, submitTransactionExpectFailAsync} from '../substrate/substrate-api';
-import {hexToStr, strToUTF16, utf16ToStr} from './util';
-import {UpDataStructsRpcCollection, UpDataStructsCreateItemData, UpDataStructsProperty} from '@polkadot/types/lookup';
-import {UpDataStructsTokenChild} from '../interfaces';
-import {Context} from 'mocha';
-
-chai.use(chaiAsPromised);
-const expect = chai.expect;
-
-export type CrossAccountId = {
-  Substrate: string,
-} | {
-  Ethereum: string,
-};
-
-
-export enum Pallets {
-  Inflation = 'inflation',
-  RmrkCore = 'rmrkcore',
-  RmrkEquip = 'rmrkequip',
-  ReFungible = 'refungible',
-  Fungible = 'fungible',
-  NFT = 'nonfungible',
-  Scheduler = 'scheduler',
-  AppPromotion = 'apppromotion',
-}
-
-export async function isUnique(): Promise<boolean> {
-  return usingApi(async api => {
-    const chain = await api.rpc.system.chain();
-
-    return chain.eq('UNIQUE');
-  });
-}
-
-export async function isQuartz(): Promise<boolean> {
-  return usingApi(async api => {
-    const chain = await api.rpc.system.chain();
-
-    return chain.eq('QUARTZ');
-  });
-}
-
-let modulesNames: any;
-export function getModuleNames(api: ApiPromise): string[] {
-  if (typeof modulesNames === 'undefined')
-    modulesNames = api.runtimeMetadata.asLatest.pallets.map(m => m.name.toString().toLowerCase());
-  return modulesNames;
-}
-
-export async function missingRequiredPallets(requiredPallets: string[]): Promise<string[]> {
-  return await usingApi(async api => {
-    const pallets = getModuleNames(api);
-
-    return requiredPallets.filter(p => !pallets.includes(p));
-  });
-}
-
-export async function checkPalletsPresence(requiredPallets: string[]): Promise<boolean> {
-  return (await missingRequiredPallets(requiredPallets)).length == 0;
-}
-
-export async function requirePallets(mocha: Context, requiredPallets: string[]) {
-  const missingPallets = await missingRequiredPallets(requiredPallets);
-
-  if (missingPallets.length > 0) {
-    const skippingTestMsg = `\tSkipping test "${mocha.test?.title}".`;
-    const missingPalletsMsg = `\tThe following pallets are missing:\n\t- ${missingPallets.join('\n\t- ')}`;
-    const skipMsg = `${skippingTestMsg}\n${missingPalletsMsg}`;
-
-    console.error('\x1b[38:5:208m%s\x1b[0m', skipMsg);
-
-    mocha.skip();
-  }
-}
-
-export function bigIntToSub(api: ApiPromise, number: bigint) {
-  return api.registry.createType('AccountId', '0x' + number.toString(16).padStart(64, '0')).toJSON();
-}
-
-export function bigIntToDecimals(number: bigint, decimals = 18): string {
-  const numberStr = number.toString();
-  const dotPos = numberStr.length - decimals;
-
-  if (dotPos <= 0) {
-    return '0.' + '0'.repeat(Math.abs(dotPos)) + numberStr;
-  } else {
-    const intPart = numberStr.substring(0, dotPos);
-    const fractPart = numberStr.substring(dotPos);
-    return intPart + '.' + fractPart;
-  }
-}
-
-export function normalizeAccountId(input: string | AccountId | CrossAccountId | IKeyringPair): CrossAccountId {
-  if (typeof input === 'string') {
-    if (input.length >= 47) {
-      return {Substrate: input};
-    } else if (input.length === 42 && input.startsWith('0x')) {
-      return {Ethereum: input.toLowerCase()};
-    } else if (input.length === 40 && !input.startsWith('0x')) {
-      return {Ethereum: '0x' + input.toLowerCase()};
-    } else {
-      throw new Error(`Unknown address format: "${input}"`);
-    }
-  }
-  if ('address' in input) {
-    return {Substrate: input.address};
-  }
-  if ('Ethereum' in input) {
-    return {
-      Ethereum: input.Ethereum.toLowerCase(),
-    };
-  } else if ('ethereum' in input) {
-    return {
-      Ethereum: (input as any).ethereum.toLowerCase(),
-    };
-  } else if ('Substrate' in input) {
-    return input;
-  } else if ('substrate' in input) {
-    return {
-      Substrate: (input as any).substrate,
-    };
-  }
-
-  // AccountId
-  return {Substrate: input.toString()};
-}
-export function toSubstrateAddress(input: string | CrossAccountId | IKeyringPair): string {
-  input = normalizeAccountId(input);
-  if ('Substrate' in input) {
-    return input.Substrate;
-  } else {
-    return evmToAddress(input.Ethereum);
-  }
-}
-
-export const U128_MAX = (1n << 128n) - 1n;
-
-const MICROUNIQUE = 1_000_000_000_000n;
-const MILLIUNIQUE = 1_000n * MICROUNIQUE;
-const CENTIUNIQUE = 10n * MILLIUNIQUE;
-export const UNIQUE = 100n * CENTIUNIQUE;
-
-interface GenericResult<T> {
-  success: boolean;
-  data: T | null;
-}
-
-interface CreateCollectionResult {
-  success: boolean;
-  collectionId: number;
-}
-
-interface CreateItemResult {
-  success: boolean;
-  collectionId: number;
-  itemId: number;
-  recipient?: CrossAccountId;
-  amount?: number;
-}
-
-interface DestroyItemResult {
-  success: boolean;
-  collectionId: number;
-  itemId: number;
-  owner: CrossAccountId;
-  amount: number;
-}
-
-interface TransferResult {
-  collectionId: number;
-  itemId: number;
-  sender?: CrossAccountId;
-  recipient?: CrossAccountId;
-  value: bigint;
-}
-
-interface IReFungibleOwner {
-  fraction: BN;
-  owner: number[];
-}
-
-interface IGetMessage {
-  checkMsgUnqMethod: string;
-  checkMsgTrsMethod: string;
-  checkMsgSysMethod: string;
-}
-
-export interface IFungibleTokenDataType {
-  value: number;
-}
-
-export interface IChainLimits {
-  collectionNumbersLimit: number;
-  accountTokenOwnershipLimit: number;
-  collectionsAdminsLimit: number;
-  customDataLimit: number;
-  nftSponsorTransferTimeout: number;
-  fungibleSponsorTransferTimeout: number;
-  refungibleSponsorTransferTimeout: number;
-  //offchainSchemaLimit: number;
-  //constOnChainSchemaLimit: number;
-}
-
-export interface IReFungibleTokenDataType {
-  owner: IReFungibleOwner[];
-}
-
-export function uniqueEventMessage(events: EventRecord[]): IGetMessage {
-  let checkMsgUnqMethod = '';
-  let checkMsgTrsMethod = '';
-  let checkMsgSysMethod = '';
-  events.forEach(({event: {method, section}}) => {
-    if (section === 'common') {
-      checkMsgUnqMethod = method;
-    } else if (section === 'treasury') {
-      checkMsgTrsMethod = method;
-    } else if (section === 'system') {
-      checkMsgSysMethod = method;
-    } else { return null; }
-  });
-  const result: IGetMessage = {
-    checkMsgUnqMethod,
-    checkMsgTrsMethod,
-    checkMsgSysMethod,
-  };
-  return result;
-}
-
-export function getEvent<T extends Event>(events: EventRecord[], check: (event: IEvent<AnyTuple>) => event is T): T | undefined {
-  const event = events.find(r => check(r.event));
-  if (!event) return;
-  return event.event as T;
-}
-
-export function getGenericResult<T>(events: EventRecord[]): GenericResult<T>;
-export function getGenericResult<T>(
-  events: EventRecord[],
-  expectSection: string,
-  expectMethod: string,
-  extractAction: (data: GenericEventData) => T
-): GenericResult<T>;
-
-export function getGenericResult<T>(
-  events: EventRecord[],
-  expectSection?: string,
-  expectMethod?: string,
-  extractAction?: (data: GenericEventData) => T,
-): GenericResult<T> {
-  let success = false;
-  let successData = null;
-
-  events.forEach(({event: {data, method, section}}) => {
-    // console.log(`    ${phase}: ${section}.${method}:: ${data}`);
-    if (method === 'ExtrinsicSuccess') {
-      success = true;
-    } else if ((expectSection == section) && (expectMethod == method)) {
-      successData = extractAction!(data as any);
-    }
-  });
-
-  const result: GenericResult<T> = {
-    success,
-    data: successData,
-  };
-  return result;
-}
-
-export function getCreateCollectionResult(events: EventRecord[]): CreateCollectionResult {
-  const genericResult = getGenericResult(events, 'common', 'CollectionCreated', (data) => parseInt(data[0].toString(), 10));
-  const result: CreateCollectionResult = {
-    success: genericResult.success,
-    collectionId: genericResult.data ?? 0,
-  };
-  return result;
-}
-
-export function getCreateItemsResult(events: EventRecord[]): CreateItemResult[] {
-  const results: CreateItemResult[] = [];
-
-  const genericResult = getGenericResult<CreateItemResult[]>(events, 'common', 'ItemCreated', (data) => {
-    const collectionId = parseInt(data[0].toString(), 10);
-    const itemId = parseInt(data[1].toString(), 10);
-    const recipient = normalizeAccountId(data[2].toJSON() as any);
-    const amount = parseInt(data[3].toString(), 10);
-
-    const itemRes: CreateItemResult = {
-      success: true,
-      collectionId,
-      itemId,
-      recipient,
-      amount,
-    };
-
-    results.push(itemRes);
-    return results;
-  });
-
-  if (!genericResult.success) return [];
-  return results;
-}
-
-export function getCreateItemResult(events: EventRecord[]): CreateItemResult {
-  const genericResult = getGenericResult(events, 'common', 'ItemCreated', (data) => data.map(function(value) { return value.toJSON(); }));
-
-  if (genericResult.data == null)
-    return {
-      success: genericResult.success,
-      collectionId: 0,
-      itemId: 0,
-      amount: 0,
-    };
-  else
-    return {
-      success: genericResult.success,
-      collectionId: genericResult.data[0] as number,
-      itemId: genericResult.data[1] as number,
-      recipient: normalizeAccountId(genericResult.data![2] as any),
-      amount: genericResult.data[3] as number,
-    };
-}
-
-export function getDestroyItemsResult(events: EventRecord[]): DestroyItemResult[] {
-  const results: DestroyItemResult[] = [];
-
-  const genericResult = getGenericResult<DestroyItemResult[]>(events, 'common', 'ItemDestroyed', (data) => {
-    const collectionId = parseInt(data[0].toString(), 10);
-    const itemId = parseInt(data[1].toString(), 10);
-    const owner = normalizeAccountId(data[2].toJSON() as any);
-    const amount = parseInt(data[3].toString(), 10);
-
-    const itemRes: DestroyItemResult = {
-      success: true,
-      collectionId,
-      itemId,
-      owner,
-      amount,
-    };
-
-    results.push(itemRes);
-    return results;
-  });
-
-  if (!genericResult.success) return [];
-  return results;
-}
-
-export function getTransferResult(api: ApiPromise, events: EventRecord[]): TransferResult {
-  for (const {event} of events) {
-    if (api.events.common.Transfer.is(event)) {
-      const [collection, token, sender, recipient, value] = event.data;
-      return {
-        collectionId: collection.toNumber(),
-        itemId: token.toNumber(),
-        sender: normalizeAccountId(sender.toJSON() as any),
-        recipient: normalizeAccountId(recipient.toJSON() as any),
-        value: value.toBigInt(),
-      };
-    }
-  }
-  throw new Error('no transfer event');
-}
-
-interface Nft {
-  type: 'NFT';
-}
-
-interface Fungible {
-  type: 'Fungible';
-  decimalPoints: number;
-}
-
-interface ReFungible {
-  type: 'ReFungible';
-}
-
-export type CollectionMode = Nft | Fungible | ReFungible;
-
-export type Property = {
-  key: any,
-  value: any,
-};
-
-type Permission = {
-  mutable: boolean;
-  collectionAdmin: boolean;
-  tokenOwner: boolean;
-}
-
-type PropertyPermission = {
-  key: any;
-  permission: Permission;
-}
-
-export type CreateCollectionParams = {
-  mode: CollectionMode,
-  name: string,
-  description: string,
-  tokenPrefix: string,
-  properties?: Array<Property>,
-  propPerm?: Array<PropertyPermission>
-};
-
-const defaultCreateCollectionParams: CreateCollectionParams = {
-  description: 'description',
-  mode: {type: 'NFT'},
-  name: 'name',
-  tokenPrefix: 'prefix',
-};
-
-export async function
-createCollection(
-  api: ApiPromise,
-  sender: IKeyringPair,
-  params: Partial<CreateCollectionParams> = {},
-): Promise<CreateCollectionResult> {
-  const {name, description, mode, tokenPrefix} = {...defaultCreateCollectionParams, ...params};
-
-  let modeprm = {};
-  if (mode.type === 'NFT') {
-    modeprm = {nft: null};
-  } else if (mode.type === 'Fungible') {
-    modeprm = {fungible: mode.decimalPoints};
-  } else if (mode.type === 'ReFungible') {
-    modeprm = {refungible: null};
-  }
-
-  const tx = api.tx.unique.createCollectionEx({
-    name: strToUTF16(name),
-    description: strToUTF16(description),
-    tokenPrefix: strToUTF16(tokenPrefix),
-    mode: modeprm as any,
-  });
-  const events = await executeTransaction(api, sender, tx);
-  return getCreateCollectionResult(events);
-}
-
-export async function createCollectionExpectSuccess(params: Partial<CreateCollectionParams> = {}): Promise<number> {
-  const {name, description, mode, tokenPrefix} = {...defaultCreateCollectionParams, ...params};
-
-  let collectionId = 0;
-  await usingApi(async (api, privateKeyWrapper) => {
-    // Get number of collections before the transaction
-    const collectionCountBefore = await getCreatedCollectionCount(api);
-
-    // Run the CreateCollection transaction
-    const alicePrivateKey = privateKeyWrapper('//Alice');
-
-    const result = await createCollection(api, alicePrivateKey, params);
-
-    // Get number of collections after the transaction
-    const collectionCountAfter = await getCreatedCollectionCount(api);
-
-    // Get the collection
-    const collection = await queryCollectionExpectSuccess(api, result.collectionId);
-
-    // What to expect
-    // tslint:disable-next-line:no-unused-expression
-    expect(result.success).to.be.true;
-    expect(result.collectionId).to.be.equal(collectionCountAfter);
-    // tslint:disable-next-line:no-unused-expression
-    expect(collection).to.be.not.null;
-    expect(collectionCountAfter).to.be.equal(collectionCountBefore + 1, 'Error: NFT collection NOT created.');
-    expect(collection.owner.toString()).to.be.equal(toSubstrateAddress(alicePrivateKey));
-    expect(utf16ToStr(collection.name.toJSON() as any)).to.be.equal(name);
-    expect(utf16ToStr(collection.description.toJSON() as any)).to.be.equal(description);
-    expect(hexToStr(collection.tokenPrefix.toJSON())).to.be.equal(tokenPrefix);
-
-    collectionId = result.collectionId;
-  });
-
-  return collectionId;
-}
-
-export async function createCollectionWithPropsExpectSuccess(params: Partial<CreateCollectionParams> = {}): Promise<number> {
-  const {name, description, mode, tokenPrefix} = {...defaultCreateCollectionParams, ...params};
-
-  let collectionId = 0;
-  await usingApi(async (api, privateKeyWrapper) => {
-    // Get number of collections before the transaction
-    const collectionCountBefore = await getCreatedCollectionCount(api);
-
-    // Run the CreateCollection transaction
-    const alicePrivateKey = privateKeyWrapper('//Alice');
-
-    let modeprm = {};
-    if (mode.type === 'NFT') {
-      modeprm = {nft: null};
-    } else if (mode.type === 'Fungible') {
-      modeprm = {fungible: mode.decimalPoints};
-    } else if (mode.type === 'ReFungible') {
-      modeprm = {refungible: null};
-    }
-
-    const tx = api.tx.unique.createCollectionEx({name: strToUTF16(name), description: strToUTF16(description), tokenPrefix: strToUTF16(tokenPrefix), mode: modeprm as any, properties: params.properties, tokenPropertyPermissions: params.propPerm});
-    const events = await submitTransactionAsync(alicePrivateKey, tx);
-    const result = getCreateCollectionResult(events);
-
-    // Get number of collections after the transaction
-    const collectionCountAfter = await getCreatedCollectionCount(api);
-
-    // Get the collection
-    const collection = await queryCollectionExpectSuccess(api, result.collectionId);
-
-    // What to expect
-    // tslint:disable-next-line:no-unused-expression
-    expect(result.success).to.be.true;
-    expect(result.collectionId).to.be.equal(collectionCountAfter);
-    // tslint:disable-next-line:no-unused-expression
-    expect(collection).to.be.not.null;
-    expect(collectionCountAfter).to.be.equal(collectionCountBefore + 1, 'Error: NFT collection NOT created.');
-    expect(collection.owner.toString()).to.be.equal(toSubstrateAddress(alicePrivateKey));
-    expect(utf16ToStr(collection.name.toJSON() as any)).to.be.equal(name);
-    expect(utf16ToStr(collection.description.toJSON() as any)).to.be.equal(description);
-    expect(hexToStr(collection.tokenPrefix.toJSON())).to.be.equal(tokenPrefix);
-
-
-    collectionId = result.collectionId;
-  });
-
-  return collectionId;
-}
-
-export async function createCollectionWithPropsExpectFailure(params: Partial<CreateCollectionParams> = {}) {
-  const {name, description, mode, tokenPrefix} = {...defaultCreateCollectionParams, ...params};
-
-  await usingApi(async (api, privateKeyWrapper) => {
-    // Get number of collections before the transaction
-    const collectionCountBefore = await getCreatedCollectionCount(api);
-
-    // Run the CreateCollection transaction
-    const alicePrivateKey = privateKeyWrapper('//Alice');
-
-    let modeprm = {};
-    if (mode.type === 'NFT') {
-      modeprm = {nft: null};
-    } else if (mode.type === 'Fungible') {
-      modeprm = {fungible: mode.decimalPoints};
-    } else if (mode.type === 'ReFungible') {
-      modeprm = {refungible: null};
-    }
-
-    const tx = api.tx.unique.createCollectionEx({name: strToUTF16(name), description: strToUTF16(description), tokenPrefix: strToUTF16(tokenPrefix), mode: modeprm as any, properties: params.properties, tokenPropertyPermissions: params.propPerm});
-    await expect(submitTransactionExpectFailAsync(alicePrivateKey, tx)).to.be.rejected;
-
-
-    // Get number of collections after the transaction
-    const collectionCountAfter = await getCreatedCollectionCount(api);
-
-    expect(collectionCountAfter).to.be.equal(collectionCountBefore, 'Error: Collection with incorrect data created.');
-  });
-}
-
-export async function createCollectionExpectFailure(params: Partial<CreateCollectionParams> = {}) {
-  const {name, description, mode, tokenPrefix} = {...defaultCreateCollectionParams, ...params};
-
-  let modeprm = {};
-  if (mode.type === 'NFT') {
-    modeprm = {nft: null};
-  } else if (mode.type === 'Fungible') {
-    modeprm = {fungible: mode.decimalPoints};
-  } else if (mode.type === 'ReFungible') {
-    modeprm = {refungible: null};
-  }
-
-  await usingApi(async (api, privateKeyWrapper) => {
-    // Get number of collections before the transaction
-    const collectionCountBefore = await getCreatedCollectionCount(api);
-
-    // Run the CreateCollection transaction
-    const alicePrivateKey = privateKeyWrapper('//Alice');
-    const tx = api.tx.unique.createCollectionEx({name: strToUTF16(name), description: strToUTF16(description), tokenPrefix: strToUTF16(tokenPrefix), mode: modeprm as any});
-    await expect(submitTransactionExpectFailAsync(alicePrivateKey, tx)).to.be.rejected;
-
-    // Get number of collections after the transaction
-    const collectionCountAfter = await getCreatedCollectionCount(api);
-
-    // What to expect
-    expect(collectionCountAfter).to.be.equal(collectionCountBefore, 'Error: Collection with incorrect data created.');
-  });
-}
-
-export async function findUnusedAddress(api: ApiPromise, privateKeyWrapper: (account: string) => IKeyringPair, seedAddition = ''): Promise<IKeyringPair> {
-  let bal = 0n;
-  let unused;
-  do {
-    const randomSeed = 'seed' + Math.floor(Math.random() * Math.floor(10000)) + seedAddition;
-    unused = privateKeyWrapper(`//${randomSeed}`);
-    bal = (await api.query.system.account(unused.address)).data.free.toBigInt();
-  } while (bal !== 0n);
-  return unused;
-}
-
-export async function getAllowance(api: ApiPromise, collectionId: number, owner: CrossAccountId | string | IKeyringPair, approved: CrossAccountId | string | IKeyringPair, tokenId: number) {
-  return (await api.rpc.unique.allowance(collectionId, normalizeAccountId(owner), normalizeAccountId(approved), tokenId)).toBigInt();
-}
-
-export function findUnusedAddresses(api: ApiPromise, privateKeyWrapper: (account: string) => IKeyringPair, amount: number): Promise<IKeyringPair[]> {
-  return Promise.all(new Array(amount).fill(null).map(() => findUnusedAddress(api, privateKeyWrapper, '_' + Date.now())));
-}
-
-export async function findNotExistingCollection(api: ApiPromise): Promise<number> {
-  const totalNumber = await getCreatedCollectionCount(api);
-  const newCollection: number = totalNumber + 1;
-  return newCollection;
-}
-
-function getDestroyResult(events: EventRecord[]): boolean {
-  let success = false;
-  events.forEach(({event: {method}}) => {
-    if (method == 'ExtrinsicSuccess') {
-      success = true;
-    }
-  });
-  return success;
-}
-
-export async function destroyCollectionExpectFailure(collectionId: number, senderSeed = '//Alice') {
-  await usingApi(async (api, privateKeyWrapper) => {
-    // Run the DestroyCollection transaction
-    const alicePrivateKey = privateKeyWrapper(senderSeed);
-    const tx = api.tx.unique.destroyCollection(collectionId);
-    await expect(submitTransactionExpectFailAsync(alicePrivateKey, tx)).to.be.rejected;
-  });
-}
-
-export async function destroyCollectionExpectSuccess(collectionId: number, senderSeed = '//Alice') {
-  await usingApi(async (api, privateKeyWrapper) => {
-    // Run the DestroyCollection transaction
-    const alicePrivateKey = privateKeyWrapper(senderSeed);
-    const tx = api.tx.unique.destroyCollection(collectionId);
-    const events = await submitTransactionAsync(alicePrivateKey, tx);
-    const result = getDestroyResult(events);
-    expect(result).to.be.true;
-
-    // What to expect
-    expect(await getDetailedCollectionInfo(api, collectionId)).to.be.null;
-  });
-}
-
-export async function setCollectionLimitsExpectSuccess(sender: IKeyringPair, collectionId: number, limits: any) {
-  await usingApi(async (api) => {
-    const tx = api.tx.unique.setCollectionLimits(collectionId, limits);
-    const events = await submitTransactionAsync(sender, tx);
-    const result = getGenericResult(events);
-
-    expect(result.success).to.be.true;
-  });
-}
-
-export const setCollectionPermissionsExpectSuccess = async (sender: IKeyringPair, collectionId: number, permissions: any) => {
-  await usingApi(async(api) => {
-    const tx = api.tx.unique.setCollectionPermissions(collectionId, permissions);
-    const events = await submitTransactionAsync(sender, tx);
-    const result = getGenericResult(events);
-
-    expect(result.success).to.be.true;
-  });
-};
-
-export async function setCollectionLimitsExpectFailure(sender: IKeyringPair, collectionId: number, limits: any) {
-  await usingApi(async (api) => {
-    const tx = api.tx.unique.setCollectionLimits(collectionId, limits);
-    const events = await expect(submitTransactionExpectFailAsync(sender, tx)).to.be.rejected;
-    const result = getGenericResult(events);
-
-    expect(result.success).to.be.false;
-  });
-}
-
-export async function setCollectionSponsorExpectSuccess(collectionId: number, sponsor: string, sender = '//Alice') {
-  await usingApi(async (api, privateKeyWrapper) => {
-
-    // Run the transaction
-    const senderPrivateKey = privateKeyWrapper(sender);
-    const tx = api.tx.unique.setCollectionSponsor(collectionId, sponsor);
-    const events = await submitTransactionAsync(senderPrivateKey, tx);
-    const result = getGenericResult(events);
-
-    // Get the collection
-    const collection = await queryCollectionExpectSuccess(api, collectionId);
-
-    // What to expect
-    expect(result.success).to.be.true;
-    expect(collection.sponsorship.toJSON()).to.deep.equal({
-      unconfirmed: sponsor,
-    });
-  });
-}
-
-export async function removeCollectionSponsorExpectSuccess(collectionId: number, sender = '//Alice') {
-  await usingApi(async (api, privateKeyWrapper) => {
-
-    // Run the transaction
-    const alicePrivateKey = privateKeyWrapper(sender);
-    const tx = api.tx.unique.removeCollectionSponsor(collectionId);
-    const events = await submitTransactionAsync(alicePrivateKey, tx);
-    const result = getGenericResult(events);
-
-    // Get the collection
-    const collection = await queryCollectionExpectSuccess(api, collectionId);
-
-    // What to expect
-    expect(result.success).to.be.true;
-    expect(collection.sponsorship.toJSON()).to.be.deep.equal({disabled: null});
-  });
-}
-
-export async function removeCollectionSponsorExpectFailure(collectionId: number, senderSeed = '//Alice') {
-  await usingApi(async (api, privateKeyWrapper) => {
-
-    // Run the transaction
-    const alicePrivateKey = privateKeyWrapper(senderSeed);
-    const tx = api.tx.unique.removeCollectionSponsor(collectionId);
-    await expect(submitTransactionExpectFailAsync(alicePrivateKey, tx)).to.be.rejected;
-  });
-}
-
-export async function setCollectionSponsorExpectFailure(collectionId: number, sponsor: string, senderSeed = '//Alice') {
-  await usingApi(async (api, privateKeyWrapper) => {
-
-    // Run the transaction
-    const alicePrivateKey = privateKeyWrapper(senderSeed);
-    const tx = api.tx.unique.setCollectionSponsor(collectionId, sponsor);
-    await expect(submitTransactionExpectFailAsync(alicePrivateKey, tx)).to.be.rejected;
-  });
-}
-
-export async function confirmSponsorshipExpectSuccess(collectionId: number, senderSeed = '//Alice') {
-  await usingApi(async (api, privateKeyWrapper) => {
-
-    // Run the transaction
-    const sender = privateKeyWrapper(senderSeed);
-    await confirmSponsorshipByKeyExpectSuccess(collectionId, sender);
-  });
-}
-
-export async function confirmSponsorshipByKeyExpectSuccess(collectionId: number, sender: IKeyringPair) {
-  await usingApi(async (api, privateKeyWrapper) => {
-
-    // Run the transaction
-    const tx = api.tx.unique.confirmSponsorship(collectionId);
-    const events = await submitTransactionAsync(sender, tx);
-    const result = getGenericResult(events);
-
-    // Get the collection
-    const collection = await queryCollectionExpectSuccess(api, collectionId);
-
-    // What to expect
-    expect(result.success).to.be.true;
-    expect(collection.sponsorship.toJSON()).to.be.deep.equal({
-      confirmed: sender.address,
-    });
-  });
-}
-
-
-export async function confirmSponsorshipExpectFailure(collectionId: number, senderSeed = '//Alice') {
-  await usingApi(async (api, privateKeyWrapper) => {
-
-    // Run the transaction
-    const sender = privateKeyWrapper(senderSeed);
-    const tx = api.tx.unique.confirmSponsorship(collectionId);
-    await expect(submitTransactionExpectFailAsync(sender, tx)).to.be.rejected;
-  });
-}
-
-export async function enableContractSponsoringExpectSuccess(sender: IKeyringPair, contractAddress: AccountId | string, enable: boolean) {
-  await usingApi(async (api) => {
-    const tx = api.tx.unique.enableContractSponsoring(contractAddress, enable);
-    const events = await submitTransactionAsync(sender, tx);
-    const result = getGenericResult(events);
-
-    expect(result.success).to.be.true;
-  });
-}
-
-export async function enableContractSponsoringExpectFailure(sender: IKeyringPair, contractAddress: AccountId | string, enable: boolean) {
-  await usingApi(async (api) => {
-    const tx = api.tx.unique.enableContractSponsoring(contractAddress, enable);
-    const events = await expect(submitTransactionExpectFailAsync(sender, tx)).to.be.rejected;
-    const result = getGenericResult(events);
-
-    expect(result.success).to.be.false;
-  });
-}
-
-export async function setTransferFlagExpectSuccess(sender: IKeyringPair, collectionId: number, enabled: boolean) {
-
-  await usingApi(async (api) => {
-
-    const tx = api.tx.unique.setTransfersEnabledFlag(collectionId, enabled);
-    const events = await submitTransactionAsync(sender, tx);
-    const result = getGenericResult(events);
-
-    expect(result.success).to.be.true;
-  });
-}
-
-export async function setTransferFlagExpectFailure(sender: IKeyringPair, collectionId: number, enabled: boolean) {
-
-  await usingApi(async (api) => {
-
-    const tx = api.tx.unique.setTransfersEnabledFlag(collectionId, enabled);
-    const events = await expect(submitTransactionExpectFailAsync(sender, tx)).to.be.rejected;
-    const result = getGenericResult(events);
-
-    expect(result.success).to.be.false;
-  });
-}
-
-export async function setContractSponsoringRateLimitExpectSuccess(sender: IKeyringPair, contractAddress: AccountId | string, rateLimit: number) {
-  await usingApi(async (api) => {
-    const tx = api.tx.unique.setContractSponsoringRateLimit(contractAddress, rateLimit);
-    const events = await submitTransactionAsync(sender, tx);
-    const result = getGenericResult(events);
-
-    expect(result.success).to.be.true;
-  });
-}
-
-export async function setContractSponsoringRateLimitExpectFailure(sender: IKeyringPair, contractAddress: AccountId | string, rateLimit: number) {
-  await usingApi(async (api) => {
-    const tx = api.tx.unique.setContractSponsoringRateLimit(contractAddress, rateLimit);
-    const events = await expect(submitTransactionExpectFailAsync(sender, tx)).to.be.rejected;
-    const result = getGenericResult(events);
-
-    expect(result.success).to.be.false;
-  });
-}
-
-export async function getNextSponsored(
-  api: ApiPromise,
-  collectionId: number,
-  account: string | CrossAccountId,
-  tokenId: number,
-): Promise<number> {
-  return Number((await api.rpc.unique.nextSponsored(collectionId, account, tokenId)).unwrapOr(-1));
-}
-
-export async function toggleContractAllowlistExpectSuccess(sender: IKeyringPair, contractAddress: AccountId | string, value = true) {
-  await usingApi(async (api) => {
-    const tx = api.tx.unique.toggleContractAllowList(contractAddress, value);
-    const events = await submitTransactionAsync(sender, tx);
-    const result = getGenericResult(events);
-
-    expect(result.success).to.be.true;
-  });
-}
-
-export async function isAllowlistedInContract(contractAddress: AccountId | string, user: string) {
-  let allowlisted = false;
-  await usingApi(async (api) => {
-    allowlisted = (await api.query.unique.contractAllowList(contractAddress, user)).toJSON() as boolean;
-  });
-  return allowlisted;
-}
-
-export async function addToContractAllowListExpectSuccess(sender: IKeyringPair, contractAddress: AccountId | string, user: AccountId | string) {
-  await usingApi(async (api) => {
-    const tx = api.tx.unique.addToContractAllowList(contractAddress.toString(), user.toString());
-    const events = await submitTransactionAsync(sender, tx);
-    const result = getGenericResult(events);
-
-    expect(result.success).to.be.true;
-  });
-}
-
-export async function removeFromContractAllowListExpectSuccess(sender: IKeyringPair, contractAddress: AccountId | string, user: AccountId | string) {
-  await usingApi(async (api) => {
-    const tx = api.tx.unique.removeFromContractAllowList(contractAddress.toString(), user.toString());
-    const events = await submitTransactionAsync(sender, tx);
-    const result = getGenericResult(events);
-
-    expect(result.success).to.be.true;
-  });
-}
-
-export async function removeFromContractAllowListExpectFailure(sender: IKeyringPair, contractAddress: AccountId | string, user: AccountId | string) {
-  await usingApi(async (api) => {
-    const tx = api.tx.unique.removeFromContractAllowList(contractAddress.toString(), user.toString());
-    const events = await expect(submitTransactionExpectFailAsync(sender, tx)).to.be.rejected;
-    const result = getGenericResult(events);
-
-    expect(result.success).to.be.false;
-  });
-}
-
-export interface CreateFungibleData {
-  readonly Value: bigint;
-}
-
-export interface CreateReFungibleData { }
-export interface CreateNftData { }
-
-export type CreateItemData = {
-  NFT: CreateNftData;
-} | {
-  Fungible: CreateFungibleData;
-} | {
-  ReFungible: CreateReFungibleData;
-};
-
-export async function burnItem(api: ApiPromise, sender: IKeyringPair, collectionId: number, tokenId: number, value: number | bigint) : Promise<boolean> {
-  const tx = api.tx.unique.burnItem(collectionId, tokenId, value);
-  const events = await submitTransactionAsync(sender, tx);
-  return getGenericResult(events).success;
-}
-
-export async function burnItemExpectSuccess(sender: IKeyringPair, collectionId: number, tokenId: number, value: number | bigint = 1) {
-  await usingApi(async (api) => {
-    const balanceBefore = await getBalance(api, collectionId, normalizeAccountId(sender), tokenId);
-    // if burning token by admin - use adminButnItemExpectSuccess
-    expect(balanceBefore >= BigInt(value)).to.be.true;
-
-    expect(await burnItem(api, sender, collectionId, tokenId, value)).to.be.true;
-
-    const balanceAfter = await getBalance(api, collectionId, normalizeAccountId(sender), tokenId);
-    expect(balanceAfter + BigInt(value)).to.be.equal(balanceBefore);
-  });
-}
-
-export async function burnItemExpectFailure(sender: IKeyringPair, collectionId: number, tokenId: number, value: number | bigint = 1) {
-  await usingApi(async (api) => {
-    const tx = api.tx.unique.burnItem(collectionId, tokenId, value);
-
-    const events = await expect(submitTransactionExpectFailAsync(sender, tx)).to.be.rejected;
-    const result = getCreateCollectionResult(events);
-    // tslint:disable-next-line:no-unused-expression
-    expect(result.success).to.be.false;
-  });
-}
-
-export async function burnFromExpectSuccess(sender: IKeyringPair, from: IKeyringPair | CrossAccountId, collectionId: number, tokenId: number, value: number | bigint = 1) {
-  await usingApi(async (api) => {
-    const tx = api.tx.unique.burnFrom(collectionId, normalizeAccountId(from), tokenId, value);
-    const events = await submitTransactionAsync(sender, tx);
-    return getGenericResult(events).success;
-  });
-}
-
-export async function
-approve(
-  api: ApiPromise,
-  collectionId: number,
-  tokenId: number, owner: IKeyringPair, approved: CrossAccountId | string | IKeyringPair, amount: number | bigint,
-) {
-  const approveUniqueTx = api.tx.unique.approve(normalizeAccountId(approved), collectionId, tokenId, amount);
-  const events = await submitTransactionAsync(owner, approveUniqueTx);
-  return getGenericResult(events).success;
-}
-
-export async function
-approveExpectSuccess(
-  collectionId: number,
-  tokenId: number, owner: IKeyringPair, approved: CrossAccountId | string, amount: number | bigint = 1,
-) {
-  await usingApi(async (api: ApiPromise) => {
-    const result = await approve(api, collectionId, tokenId, owner, approved, amount);
-    expect(result).to.be.true;
-
-    expect(await getAllowance(api, collectionId, owner, approved, tokenId)).to.be.equal(BigInt(amount));
-  });
-}
-
-export async function adminApproveFromExpectSuccess(
-  collectionId: number,
-  tokenId: number, admin: IKeyringPair, owner: CrossAccountId | string, approved: CrossAccountId | string, amount: number | bigint = 1,
-) {
-  await usingApi(async (api: ApiPromise) => {
-    const approveUniqueTx = api.tx.unique.approve(normalizeAccountId(approved), collectionId, tokenId, amount);
-    const events = await submitTransactionAsync(admin, approveUniqueTx);
-    const result = getGenericResult(events);
-    expect(result.success).to.be.true;
-
-    expect(await getAllowance(api, collectionId, owner, approved, tokenId)).to.be.equal(BigInt(amount));
-  });
-}
-
-export async function
-transferFrom(
-  api: ApiPromise,
-  collectionId: number,
-  tokenId: number,
-  accountApproved: IKeyringPair,
-  accountFrom: IKeyringPair | CrossAccountId,
-  accountTo: IKeyringPair | CrossAccountId,
-  value: number | bigint,
-) {
-  const from = normalizeAccountId(accountFrom);
-  const to = normalizeAccountId(accountTo);
-  const transferFromTx = api.tx.unique.transferFrom(from, to, collectionId, tokenId, value);
-  const events = await submitTransactionAsync(accountApproved, transferFromTx);
-  return getGenericResult(events).success;
-}
-
-export async function
-transferFromExpectSuccess(
-  collectionId: number,
-  tokenId: number,
-  accountApproved: IKeyringPair,
-  accountFrom: IKeyringPair | CrossAccountId,
-  accountTo: IKeyringPair | CrossAccountId,
-  value: number | bigint = 1,
-  type = 'NFT',
-) {
-  await usingApi(async (api: ApiPromise) => {
-    const from = normalizeAccountId(accountFrom);
-    const to = normalizeAccountId(accountTo);
-    let balanceBefore = 0n;
-    if (type === 'Fungible' || type === 'ReFungible') {
-      balanceBefore = await getBalance(api, collectionId, to, tokenId);
-    }
-    expect(await transferFrom(api, collectionId, tokenId, accountApproved, accountFrom, accountTo, value)).to.be.true;
-    if (type === 'NFT') {
-      expect(await getTokenOwner(api, collectionId, tokenId)).to.be.deep.equal(to);
-    }
-    if (type === 'Fungible') {
-      const balanceAfter = await getBalance(api, collectionId, to, tokenId);
-      if (JSON.stringify(to) !== JSON.stringify(from)) {
-        expect(balanceAfter - balanceBefore).to.be.equal(BigInt(value));
-      } else {
-        expect(balanceAfter).to.be.equal(balanceBefore);
-      }
-    }
-    if (type === 'ReFungible') {
-      expect(await getBalance(api, collectionId, to, tokenId)).to.be.equal(balanceBefore + BigInt(value));
-    }
-  });
-}
-
-export async function
-transferFromExpectFail(
-  collectionId: number,
-  tokenId: number,
-  accountApproved: IKeyringPair,
-  accountFrom: IKeyringPair,
-  accountTo: IKeyringPair,
-  value: number | bigint = 1,
-) {
-  await usingApi(async (api: ApiPromise) => {
-    const transferFromTx = api.tx.unique.transferFrom(normalizeAccountId(accountFrom.address), normalizeAccountId(accountTo.address), collectionId, tokenId, value);
-    const events = await expect(submitTransactionExpectFailAsync(accountApproved, transferFromTx)).to.be.rejected;
-    const result = getCreateCollectionResult(events);
-    // tslint:disable-next-line:no-unused-expression
-    expect(result.success).to.be.false;
-  });
-}
-
-/* eslint no-async-promise-executor: "off" */
-export async function getBlockNumber(api: ApiPromise): Promise<number> {
-  return new Promise<number>(async (resolve) => {
-    const unsubscribe = await api.rpc.chain.subscribeNewHeads((head) => {
-      unsubscribe();
-      resolve(head.number.toNumber());
-    });
-  });
-}
-
-export async function addCollectionAdminExpectSuccess(sender: IKeyringPair, collectionId: number, address: string | CrossAccountId) {
-  await usingApi(async (api) => {
-    const changeAdminTx = api.tx.unique.addCollectionAdmin(collectionId, normalizeAccountId(address));
-    const events = await submitTransactionAsync(sender, changeAdminTx);
-    const result = getCreateCollectionResult(events);
-    expect(result.success).to.be.true;
-  });
-}
-
-export async function adminApproveFromExpectFail(
-  collectionId: number,
-  tokenId: number, admin: IKeyringPair, owner: CrossAccountId | string, approved: CrossAccountId | string, amount: number | bigint = 1,
-) {
-  await usingApi(async (api: ApiPromise) => {
-    const approveUniqueTx = api.tx.unique.approve(normalizeAccountId(approved), collectionId, tokenId, amount);
-    const events = await expect(submitTransactionAsync(admin, approveUniqueTx)).to.be.rejected;
-    const result = getGenericResult(events);
-    expect(result.success).to.be.false;
-  });
-}
-
-export async function
-getFreeBalance(account: IKeyringPair): Promise<bigint> {
-  let balance = 0n;
-  await usingApi(async (api) => {
-    balance = BigInt((await api.query.system.account(account.address)).data.free.toString());
-  });
-
-  return balance;
-}
-
-export async function paraSiblingSovereignAccount(paraid: number): Promise<string> {
-  return usingApi(async api => {
-    // We are getting a *sibling* parachain sovereign account,
-    // so we need a sibling prefix: encoded(b"sibl") == 0x7369626c
-    const siblingPrefix = '0x7369626c';
-
-    const encodedParaId = api.createType('u32', paraid).toHex(true).substring(2);
-    const suffix = '000000000000000000000000000000000000000000000000';
-
-    return siblingPrefix + encodedParaId + suffix;
-  });
-}
-
-export async function transferBalanceTo(api: ApiPromise, source: IKeyringPair, target: string, amount = 1000n * UNIQUE) {
-  const tx = api.tx.balances.transfer(target, amount);
-  const events = await submitTransactionAsync(source, tx);
-  const result = getGenericResult(events);
-  expect(result.success).to.be.true;
-}
-
-export async function
-scheduleExpectSuccess(
-  operationTx: any,
-  sender: IKeyringPair,
-  blockSchedule: number,
-  scheduledId: string,
-  period = 1,
-  repetitions = 1,
-) {
-  await usingApi(async (api: ApiPromise) => {
-    const blockNumber: number | undefined = await getBlockNumber(api);
-    const expectedBlockNumber = blockNumber + blockSchedule;
-
-    expect(blockNumber).to.be.greaterThan(0);
-    const scheduleTx = api.tx.scheduler.scheduleNamed( // schedule
-      scheduledId,
-      expectedBlockNumber,
-      repetitions > 1 ? [period, repetitions] : null,
-      0,
-      {Value: operationTx as any},
-    );
-
-    const events = await submitTransactionAsync(sender, scheduleTx);
-    expect(getGenericResult(events).success).to.be.true;
-  });
-}
-
-export async function
-scheduleExpectFailure(
-  operationTx: any,
-  sender: IKeyringPair,
-  blockSchedule: number,
-  scheduledId: string,
-  period = 1,
-  repetitions = 1,
-) {
-  await usingApi(async (api: ApiPromise) => {
-    const blockNumber: number | undefined = await getBlockNumber(api);
-    const expectedBlockNumber = blockNumber + blockSchedule;
-
-    expect(blockNumber).to.be.greaterThan(0);
-    const scheduleTx = api.tx.scheduler.scheduleNamed( // schedule
-      scheduledId,
-      expectedBlockNumber,
-      repetitions <= 1 ? null : [period, repetitions],
-      0,
-      {Value: operationTx as any},
-    );
-
-    //const events =
-    await expect(submitTransactionExpectFailAsync(sender, scheduleTx)).to.be.rejected;
-    //expect(getGenericResult(events).success).to.be.false;
-  });
-}
-
-export async function
-scheduleTransferAndWaitExpectSuccess(
-  collectionId: number,
-  tokenId: number,
-  sender: IKeyringPair,
-  recipient: IKeyringPair,
-  value: number | bigint = 1,
-  blockSchedule: number,
-  scheduledId: string,
-) {
-  await usingApi(async (api: ApiPromise) => {
-    await scheduleTransferExpectSuccess(collectionId, tokenId, sender, recipient, value, blockSchedule, scheduledId);
-
-    const recipientBalanceBefore = (await api.query.system.account(recipient.address)).data.free.toBigInt();
-
-    // sleep for n + 1 blocks
-    await waitNewBlocks(blockSchedule + 1);
-
-    const recipientBalanceAfter = (await api.query.system.account(recipient.address)).data.free.toBigInt();
-
-    expect(await getTokenOwner(api, collectionId, tokenId)).to.be.deep.equal(normalizeAccountId(recipient.address));
-    expect(recipientBalanceAfter).to.be.equal(recipientBalanceBefore);
-  });
-}
-
-export async function
-scheduleTransferExpectSuccess(
-  collectionId: number,
-  tokenId: number,
-  sender: IKeyringPair,
-  recipient: IKeyringPair,
-  value: number | bigint = 1,
-  blockSchedule: number,
-  scheduledId: string,
-) {
-  await usingApi(async (api: ApiPromise) => {
-    const transferTx = api.tx.unique.transfer(normalizeAccountId(recipient.address), collectionId, tokenId, value);
-
-    await scheduleExpectSuccess(transferTx, sender, blockSchedule, scheduledId);
-
-    expect(await getTokenOwner(api, collectionId, tokenId)).to.be.deep.equal(normalizeAccountId(sender.address));
-  });
-}
-
-export async function
-scheduleTransferFundsPeriodicExpectSuccess(
-  amount: bigint,
-  sender: IKeyringPair,
-  recipient: IKeyringPair,
-  blockSchedule: number,
-  scheduledId: string,
-  period: number,
-  repetitions: number,
-) {
-  await usingApi(async (api: ApiPromise) => {
-    const transferTx = api.tx.balances.transfer(recipient.address, amount);
-
-    const balanceBefore = await getFreeBalance(recipient);
-
-    await scheduleExpectSuccess(transferTx, sender, blockSchedule, scheduledId, period, repetitions);
-
-    expect(await getFreeBalance(recipient)).to.be.equal(balanceBefore);
-  });
-}
-
-export async function
-transfer(
-  api: ApiPromise,
-  collectionId: number,
-  tokenId: number,
-  sender: IKeyringPair,
-  recipient: IKeyringPair | CrossAccountId,
-  value: number | bigint,
-) : Promise<boolean> {
-  const transferTx = api.tx.unique.transfer(normalizeAccountId(recipient), collectionId, tokenId, value);
-  const events = await executeTransaction(api, sender, transferTx);
-  return getGenericResult(events).success;
-}
-
-export async function
-transferExpectSuccess(
-  collectionId: number,
-  tokenId: number,
-  sender: IKeyringPair,
-  recipient: IKeyringPair | CrossAccountId,
-  value: number | bigint = 1,
-  type = 'NFT',
-) {
-  await usingApi(async (api: ApiPromise) => {
-    const from = normalizeAccountId(sender);
-    const to = normalizeAccountId(recipient);
-
-    let balanceBefore = 0n;
-    if (type === 'Fungible' || type === 'ReFungible') {
-      balanceBefore = await getBalance(api, collectionId, to, tokenId);
-    }
-
-    const transferTx = api.tx.unique.transfer(normalizeAccountId(recipient), collectionId, tokenId, value);
-    const events = await executeTransaction(api, sender, transferTx);
-    const result = getTransferResult(api, events);
-
-    expect(result.collectionId).to.be.equal(collectionId);
-    expect(result.itemId).to.be.equal(tokenId);
-    expect(result.sender).to.be.deep.equal(normalizeAccountId(sender.address));
-    expect(result.recipient).to.be.deep.equal(to);
-    expect(result.value).to.be.equal(BigInt(value));
-
-    if (type === 'NFT') {
-      expect(await getTokenOwner(api, collectionId, tokenId)).to.be.deep.equal(to);
-    }
-    if (type === 'Fungible' || type === 'ReFungible') {
-      const balanceAfter = await getBalance(api, collectionId, to, tokenId);
-      if (JSON.stringify(to) !== JSON.stringify(from)) {
-        expect(balanceAfter - balanceBefore).to.be.equal(BigInt(value));
-      } else {
-        expect(balanceAfter).to.be.equal(balanceBefore);
-      }
-    }
-  });
-}
-
-export async function
-transferExpectFailure(
-  collectionId: number,
-  tokenId: number,
-  sender: IKeyringPair,
-  recipient: IKeyringPair | CrossAccountId,
-  value: number | bigint = 1,
-) {
-  await usingApi(async (api: ApiPromise) => {
-    const transferTx = api.tx.unique.transfer(normalizeAccountId(recipient), collectionId, tokenId, value);
-    const events = await expect(submitTransactionExpectFailAsync(sender, transferTx)).to.be.rejected;
-    const result = getGenericResult(events);
-    // if (events && Array.isArray(events)) {
-    //   const result = getCreateCollectionResult(events);
-    // tslint:disable-next-line:no-unused-expression
-    expect(result.success).to.be.false;
-    //}
-  });
-}
-
-export async function
-approveExpectFail(
-  collectionId: number,
-  tokenId: number, owner: IKeyringPair, approved: IKeyringPair, amount: number | bigint = 1,
-) {
-  await usingApi(async (api: ApiPromise) => {
-    const approveUniqueTx = api.tx.unique.approve(normalizeAccountId(approved.address), collectionId, tokenId, amount);
-    const events = await expect(submitTransactionExpectFailAsync(owner, approveUniqueTx)).to.be.rejected;
-    const result = getCreateCollectionResult(events);
-    // tslint:disable-next-line:no-unused-expression
-    expect(result.success).to.be.false;
-  });
-}
-
-export async function getBalance(
-  api: ApiPromise,
-  collectionId: number,
-  owner: string | CrossAccountId | IKeyringPair,
-  token: number,
-): Promise<bigint> {
-  return (await api.rpc.unique.balance(collectionId, normalizeAccountId(owner), token)).toBigInt();
-}
-export async function getTokenOwner(
-  api: ApiPromise,
-  collectionId: number,
-  token: number,
-): Promise<CrossAccountId> {
-  const owner = (await api.rpc.unique.tokenOwner(collectionId, token)).toJSON() as any;
-  if (owner == null) throw new Error('owner == null');
-  return normalizeAccountId(owner);
-}
-export async function getTopmostTokenOwner(
-  api: ApiPromise,
-  collectionId: number,
-  token: number,
-): Promise<CrossAccountId> {
-  const owner = (await api.rpc.unique.topmostTokenOwner(collectionId, token)).toJSON() as any;
-  if (owner == null) throw new Error('owner == null');
-  return normalizeAccountId(owner);
-}
-export async function getTokenChildren(
-  api: ApiPromise,
-  collectionId: number,
-  tokenId: number,
-): Promise<UpDataStructsTokenChild[]> {
-  return (await api.rpc.unique.tokenChildren(collectionId, tokenId)).toJSON() as any;
-}
-export async function isTokenExists(
-  api: ApiPromise,
-  collectionId: number,
-  token: number,
-): Promise<boolean> {
-  return (await api.rpc.unique.tokenExists(collectionId, token)).toJSON();
-}
-export async function getLastTokenId(
-  api: ApiPromise,
-  collectionId: number,
-): Promise<number> {
-  return (await api.rpc.unique.lastTokenId(collectionId)).toJSON();
-}
-export async function getAdminList(
-  api: ApiPromise,
-  collectionId: number,
-): Promise<string[]> {
-  return (await api.rpc.unique.adminlist(collectionId)).toHuman() as any;
-}
-export async function getTokenProperties(
-  api: ApiPromise,
-  collectionId: number,
-  tokenId: number,
-  propertyKeys: string[],
-): Promise<UpDataStructsProperty[]> {
-  return (await api.rpc.unique.tokenProperties(collectionId, tokenId, propertyKeys)).toHuman() as any;
-}
-
-export async function createFungibleItemExpectSuccess(
-  sender: IKeyringPair,
-  collectionId: number,
-  data: CreateFungibleData,
-  owner: CrossAccountId | string = sender.address,
-) {
-  return await usingApi(async (api) => {
-    const tx = api.tx.unique.createItem(collectionId, normalizeAccountId(owner), {Fungible: data});
-
-    const events = await submitTransactionAsync(sender, tx);
-    const result = getCreateItemResult(events);
-
-    expect(result.success).to.be.true;
-    return result.itemId;
-  });
-}
-
-export async function createMultipleItemsExpectSuccess(sender: IKeyringPair, collectionId: number, itemsData: any, owner: CrossAccountId | string = sender.address) {
-  await usingApi(async (api) => {
-    const to = normalizeAccountId(owner);
-    const tx = api.tx.unique.createMultipleItems(collectionId, to, itemsData);
-
-    const events = await submitTransactionAsync(sender, tx);
-    expect(getGenericResult(events).success).to.be.true;
-  });
-}
-
-export async function createMultipleItemsWithPropsExpectSuccess(sender: IKeyringPair, collectionId: number, itemsData: any, owner: CrossAccountId | string = sender.address) {
-  await usingApi(async (api) => {
-    const to = normalizeAccountId(owner);
-    const tx = api.tx.unique.createMultipleItems(collectionId, to, itemsData);
-
-    const events = await submitTransactionAsync(sender, tx);
-    const result = getCreateItemsResult(events);
-
-    for (const res of result) {
-      expect(await api.rpc.unique.tokenProperties(collectionId, res.itemId)).not.to.be.empty;
-    }
-  });
-}
-
-export async function createMultipleItemsExWithPropsExpectSuccess(sender: IKeyringPair, collectionId: number, itemsData: any) {
-  await usingApi(async (api) => {
-    const tx = api.tx.unique.createMultipleItemsEx(collectionId, itemsData);
-
-    const events = await submitTransactionAsync(sender, tx);
-    const result = getCreateItemsResult(events);
-
-    for (const res of result) {
-      expect(await api.rpc.unique.tokenProperties(collectionId, res.itemId)).not.to.be.empty;
-    }
-  });
-}
-
-export async function createItemWithPropsExpectSuccess(sender: IKeyringPair, collectionId: number, createMode: string, props:  Array<Property>, owner: CrossAccountId | string = sender.address) {
-  let newItemId = 0;
-  await usingApi(async (api) => {
-    const to = normalizeAccountId(owner);
-    const itemCountBefore = await getLastTokenId(api, collectionId);
-    const itemBalanceBefore = await getBalance(api, collectionId, to, newItemId);
-
-    let tx;
-    if (createMode === 'Fungible') {
-      const createData = {fungible: {value: 10}};
-      tx = api.tx.unique.createItem(collectionId, to, createData as any);
-    } else if (createMode === 'ReFungible') {
-      const createData = {refungible: {pieces: 100}};
-      tx = api.tx.unique.createItem(collectionId, to, createData as any);
-    } else {
-      const data = api.createType('UpDataStructsCreateItemData', {NFT: {properties: props}});
-      tx = api.tx.unique.createItem(collectionId, to, data as UpDataStructsCreateItemData);
-    }
-
-    const events = await submitTransactionAsync(sender, tx);
-    const result = getCreateItemResult(events);
-
-    const itemCountAfter = await getLastTokenId(api, collectionId);
-    const itemBalanceAfter = await getBalance(api, collectionId, to, newItemId);
-
-    if (createMode === 'NFT') {
-      expect(await api.rpc.unique.tokenProperties(collectionId, result.itemId)).not.to.be.empty;
-    }
-
-    // What to expect
-    // tslint:disable-next-line:no-unused-expression
-    expect(result.success).to.be.true;
-    if (createMode === 'Fungible') {
-      expect(itemBalanceAfter - itemBalanceBefore).to.be.equal(10n);
-    } else {
-      expect(itemCountAfter).to.be.equal(itemCountBefore + 1);
-    }
-    expect(collectionId).to.be.equal(result.collectionId);
-    expect(itemCountAfter.toString()).to.be.equal(result.itemId.toString());
-    expect(to).to.be.deep.equal(result.recipient);
-    newItemId = result.itemId;
-  });
-  return newItemId;
-}
-
-export async function createItemWithPropsExpectFailure(sender: IKeyringPair, collectionId: number, createMode: string, props: Array<Property>, owner: CrossAccountId | string = sender.address) {
-  await usingApi(async (api) => {
-
-    let tx;
-    if (createMode === 'NFT') {
-      const data = api.createType('UpDataStructsCreateItemData', {NFT: {properties: props}}) as UpDataStructsCreateItemData;
-      tx = api.tx.unique.createItem(collectionId, normalizeAccountId(owner), data);
-    } else {
-      tx = api.tx.unique.createItem(collectionId, normalizeAccountId(owner), createMode);
-    }
-
-
-    const events = await expect(submitTransactionExpectFailAsync(sender, tx)).to.be.rejected;
-    if(events.message && events.message.toString().indexOf('1002: Verification Error') > -1) return;
-    const result = getCreateItemResult(events);
-
-    expect(result.success).to.be.false;
-  });
-}
-
-export async function createItemExpectSuccess(sender: IKeyringPair, collectionId: number, createMode: string, owner: CrossAccountId | string = sender.address) {
-  let newItemId = 0;
-  await usingApi(async (api) => {
-    const to = normalizeAccountId(owner);
-    const itemCountBefore = await getLastTokenId(api, collectionId);
-    const itemBalanceBefore = await getBalance(api, collectionId, to, newItemId);
-
-    let tx;
-    if (createMode === 'Fungible') {
-      const createData = {fungible: {value: 10}};
-      tx = api.tx.unique.createItem(collectionId, to, createData as any);
-    } else if (createMode === 'ReFungible') {
-      const createData = {refungible: {pieces: 100}};
-      tx = api.tx.unique.createItem(collectionId, to, createData as any);
-    } else {
-      const createData = {nft: {}};
-      tx = api.tx.unique.createItem(collectionId, to, createData as any);
-    }
-
-    const events = await executeTransaction(api, sender, tx);
-    const result = getCreateItemResult(events);
-
-    const itemCountAfter = await getLastTokenId(api, collectionId);
-    const itemBalanceAfter = await getBalance(api, collectionId, to, newItemId);
-
-    // What to expect
-    // tslint:disable-next-line:no-unused-expression
-    expect(result.success).to.be.true;
-    if (createMode === 'Fungible') {
-      expect(itemBalanceAfter - itemBalanceBefore).to.be.equal(10n);
-    } else {
-      expect(itemCountAfter).to.be.equal(itemCountBefore + 1);
-    }
-    expect(collectionId).to.be.equal(result.collectionId);
-    expect(itemCountAfter.toString()).to.be.equal(result.itemId.toString());
-    expect(to).to.be.deep.equal(result.recipient);
-    newItemId = result.itemId;
-  });
-  return newItemId;
-}
-
-export async function createRefungibleToken(api: ApiPromise, sender: IKeyringPair, collectionId: number, amount: bigint, owner: CrossAccountId | IKeyringPair | string = sender.address) : Promise<CreateItemResult> {
-  const createData = {refungible: {pieces: amount}};
-  const tx = api.tx.unique.createItem(collectionId, normalizeAccountId(owner), createData as any);
-
-  const events = await submitTransactionAsync(sender, tx);
-  return  getCreateItemResult(events);
-}
-
-export async function createItemExpectFailure(sender: IKeyringPair, collectionId: number, createMode: string, owner: CrossAccountId | string = sender.address) {
-  await usingApi(async (api) => {
-    const tx = api.tx.unique.createItem(collectionId, normalizeAccountId(owner), createMode);
-
-    const events = await expect(submitTransactionExpectFailAsync(sender, tx)).to.be.rejected;
-    const result = getCreateItemResult(events);
-
-    expect(result.success).to.be.false;
-  });
-}
-
-export async function setPublicAccessModeExpectSuccess(
-  sender: IKeyringPair, collectionId: number,
-  accessMode: 'Normal' | 'AllowList',
-) {
-  await usingApi(async (api) => {
-
-    // Run the transaction
-    const tx = api.tx.unique.setCollectionPermissions(collectionId, {access: accessMode});
-    const events = await submitTransactionAsync(sender, tx);
-    const result = getGenericResult(events);
-
-    // Get the collection
-    const collection = await queryCollectionExpectSuccess(api, collectionId);
-
-    // What to expect
-    // tslint:disable-next-line:no-unused-expression
-    expect(result.success).to.be.true;
-    expect(collection.permissions.access.toHuman()).to.be.equal(accessMode);
-  });
-}
-
-export async function setPublicAccessModeExpectFail(
-  sender: IKeyringPair, collectionId: number,
-  accessMode: 'Normal' | 'AllowList',
-) {
-  await usingApi(async (api) => {
-
-    // Run the transaction
-    const tx = api.tx.unique.setCollectionPermissions(collectionId, {access: accessMode});
-    const events = await expect(submitTransactionExpectFailAsync(sender, tx)).to.be.rejected;
-    const result = getGenericResult(events);
-
-    // What to expect
-    // tslint:disable-next-line:no-unused-expression
-    expect(result.success).to.be.false;
-  });
-}
-
-export async function enableAllowListExpectSuccess(sender: IKeyringPair, collectionId: number) {
-  await setPublicAccessModeExpectSuccess(sender, collectionId, 'AllowList');
-}
-
-export async function enableAllowListExpectFail(sender: IKeyringPair, collectionId: number) {
-  await setPublicAccessModeExpectFail(sender, collectionId, 'AllowList');
-}
-
-export async function disableAllowListExpectSuccess(sender: IKeyringPair, collectionId: number) {
-  await setPublicAccessModeExpectSuccess(sender, collectionId, 'Normal');
-}
-
-export async function setMintPermissionExpectSuccess(sender: IKeyringPair, collectionId: number, enabled: boolean) {
-  await usingApi(async (api) => {
-
-    // Run the transaction
-    const tx = api.tx.unique.setCollectionPermissions(collectionId, {mintMode: enabled});
-    const events = await submitTransactionAsync(sender, tx);
-    const result = getGenericResult(events);
-    expect(result.success).to.be.true;
-
-    // Get the collection
-    const collection = await queryCollectionExpectSuccess(api, collectionId);
-
-    expect(collection.permissions.mintMode.toHuman()).to.be.equal(enabled);
-  });
-}
-
-export async function enablePublicMintingExpectSuccess(sender: IKeyringPair, collectionId: number) {
-  await setMintPermissionExpectSuccess(sender, collectionId, true);
-}
-
-export async function setMintPermissionExpectFailure(sender: IKeyringPair, collectionId: number, enabled: boolean) {
-  await usingApi(async (api) => {
-    // Run the transaction
-    const tx = api.tx.unique.setCollectionPermissions(collectionId, {mintMode: enabled});
-    const events = await expect(submitTransactionExpectFailAsync(sender, tx)).to.be.rejected;
-    const result = getCreateCollectionResult(events);
-    // tslint:disable-next-line:no-unused-expression
-    expect(result.success).to.be.false;
-  });
-}
-
-export async function setChainLimitsExpectFailure(sender: IKeyringPair, limits: IChainLimits) {
-  await usingApi(async (api) => {
-    // Run the transaction
-    const tx = api.tx.unique.setChainLimits(limits);
-    const events = await expect(submitTransactionExpectFailAsync(sender, tx)).to.be.rejected;
-    const result = getCreateCollectionResult(events);
-    // tslint:disable-next-line:no-unused-expression
-    expect(result.success).to.be.false;
-  });
-}
-
-export async function isAllowlisted(api: ApiPromise, collectionId: number, address: string | CrossAccountId | IKeyringPair) {
-  return (await api.rpc.unique.allowed(collectionId, normalizeAccountId(address))).toJSON();
-}
-
-export async function addToAllowListExpectSuccess(sender: IKeyringPair, collectionId: number, address: string | AccountId | CrossAccountId) {
-  await usingApi(async (api) => {
-    expect(await isAllowlisted(api, collectionId, normalizeAccountId(address))).to.be.false;
-
-    // Run the transaction
-    const tx = api.tx.unique.addToAllowList(collectionId, normalizeAccountId(address));
-    const events = await submitTransactionAsync(sender, tx);
-    const result = getGenericResult(events);
-    expect(result.success).to.be.true;
-
-    expect(await isAllowlisted(api, collectionId, normalizeAccountId(address))).to.be.true;
-  });
-}
-
-export async function addToAllowListAgainExpectSuccess(sender: IKeyringPair, collectionId: number, address: string | AccountId) {
-  await usingApi(async (api) => {
-
-    expect(await isAllowlisted(api, collectionId, normalizeAccountId(address))).to.be.true;
-
-    // Run the transaction
-    const tx = api.tx.unique.addToAllowList(collectionId, normalizeAccountId(address));
-    const events = await submitTransactionAsync(sender, tx);
-    const result = getGenericResult(events);
-    expect(result.success).to.be.true;
-
-    expect(await isAllowlisted(api, collectionId, normalizeAccountId(address))).to.be.true;
-  });
-}
-
-export async function addToAllowListExpectFail(sender: IKeyringPair, collectionId: number, address: string | AccountId) {
-  await usingApi(async (api) => {
-
-    // Run the transaction
-    const tx = api.tx.unique.addToAllowList(collectionId, normalizeAccountId(address));
-    const events = await expect(submitTransactionExpectFailAsync(sender, tx)).to.be.rejected;
-    const result = getGenericResult(events);
-
-    // What to expect
-    // tslint:disable-next-line:no-unused-expression
-    expect(result.success).to.be.false;
-  });
-}
-
-export async function removeFromAllowListExpectSuccess(sender: IKeyringPair, collectionId: number, address: CrossAccountId) {
-  await usingApi(async (api) => {
-    // Run the transaction
-    const tx = api.tx.unique.removeFromAllowList(collectionId, normalizeAccountId(address));
-    const events = await submitTransactionAsync(sender, tx);
-    const result = getGenericResult(events);
-
-    // What to expect
-    // tslint:disable-next-line:no-unused-expression
-    expect(result.success).to.be.true;
-  });
-}
-
-export async function removeFromAllowListExpectFailure(sender: IKeyringPair, collectionId: number, address: CrossAccountId) {
-  await usingApi(async (api) => {
-    // Run the transaction
-    const tx = api.tx.unique.removeFromAllowList(collectionId, normalizeAccountId(address));
-    const events = await expect(submitTransactionExpectFailAsync(sender, tx)).to.be.rejected;
-    const result = getGenericResult(events);
-
-    // What to expect
-    // tslint:disable-next-line:no-unused-expression
-    expect(result.success).to.be.false;
-  });
-}
-
-export const getDetailedCollectionInfo = async (api: ApiPromise, collectionId: number)
-  : Promise<UpDataStructsRpcCollection | null> => {
-  return (await api.rpc.unique.collectionById(collectionId)).unwrapOr(null);
-};
-
-export const getCreatedCollectionCount = async (api: ApiPromise): Promise<number> => {
-  // set global object - collectionsCount
-  return (await api.rpc.unique.collectionStats()).created.toNumber();
-};
-
-export async function queryCollectionExpectSuccess(api: ApiPromise, collectionId: number): Promise<UpDataStructsRpcCollection> {
-  return (await api.rpc.unique.collectionById(collectionId)).unwrap();
-}
-
-export const describe_xcm = (
-  process.env.RUN_XCM_TESTS
-    ? describe
-    : describe.skip
-);
-
-export async function waitNewBlocks(blocksCount = 1): Promise<void> {
-  await usingApi(async (api) => {
-    const promise = new Promise<void>(async (resolve) => {
-      const unsubscribe = await api.rpc.chain.subscribeNewHeads(() => {
-        if (blocksCount > 0) {
-          blocksCount--;
-        } else {
-          unsubscribe();
-          resolve();
-        }
-      });
-    });
-    return promise;
-  });
-}
-
-export async function waitEvent(
-  api: ApiPromise,
-  maxBlocksToWait: number,
-  eventSection: string,
-  eventMethod: string,
-): Promise<EventRecord | null> {
-
-  const promise = new Promise<EventRecord | null>(async (resolve) => {
-    const unsubscribe = await api.rpc.chain.subscribeNewHeads(async header => {
-      const blockNumber = header.number.toHuman();
-      const blockHash = header.hash;
-      const eventIdStr = `${eventSection}.${eventMethod}`;
-      const waitLimitStr = `wait blocks remaining: ${maxBlocksToWait}`;
-
-      console.log(`[Block #${blockNumber}] Waiting for event \`${eventIdStr}\` (${waitLimitStr})`);
-
-      const apiAt = await api.at(blockHash);
-      const eventRecords = await apiAt.query.system.events();
-
-      const neededEvent = eventRecords.find(r => {
-        return r.event.section == eventSection && r.event.method == eventMethod;
-      });
-
-      if (neededEvent) {
-        unsubscribe();
-        resolve(neededEvent);
-      } else if (maxBlocksToWait > 0) {
-        maxBlocksToWait--;
-      } else {
-        console.log(`Event \`${eventIdStr}\` is NOT found`);
-
-        unsubscribe();
-        resolve(null);
-      }
-    });
-  });
-  return promise;
-}
-
-export async function repartitionRFT(
-  api: ApiPromise,
-  collectionId: number,
-  sender: IKeyringPair,
-  tokenId: number,
-  amount: bigint,
-): Promise<boolean> {
-  const tx = api.tx.unique.repartition(collectionId, tokenId, amount);
-  const events = await submitTransactionAsync(sender, tx);
-  const result = getGenericResult(events);
-
-  return result.success;
-}
-
-export async function itApi(name: string, cb: (apis: { api: ApiPromise, privateKeyWrapper: (account: string) => IKeyringPair }) => any, opts: { only?: boolean, skip?: boolean } = {}) {
-  let i: any = it;
-  if (opts.only) i = i.only;
-  else if (opts.skip) i = i.skip;
-  i(name, async () => {
-    await usingApi(async (api, privateKeyWrapper) => {
-      await cb({api, privateKeyWrapper});
-    });
-  });
-}
-
-itApi.only = (name: string, cb: (apis: { api: ApiPromise, privateKeyWrapper: (account: string) => IKeyringPair }) => any) => itApi(name, cb, {only: true});
-itApi.skip = (name: string, cb: (apis: { api: ApiPromise, privateKeyWrapper: (account: string) => IKeyringPair }) => any) => itApi(name, cb, {skip: true});
-
-let accountSeed = 10000;
-export function generateKeyringPair(keyring: Keyring) {
-  const privateKey = `0xDEADBEEF${(Date.now() + (accountSeed++)).toString(16).padStart(64 - 8, '0')}`;
-  return keyring.addFromUri(privateKey);
-}
-
-export async function expectSubstrateEventsAtBlock(api: ApiPromise, blockNumber: AnyNumber | BlockNumber, section: string, methods: string[], dryRun = false) {
-  const blockHash = await api.rpc.chain.getBlockHash(blockNumber);
-  const subEvents = (await api.query.system.events.at(blockHash))
-    .filter(x => x.event.section === section)
-    .map((x) => x.toHuman());
-  const events = methods.map((m) => {
-    return {
-      event: {
-        method: m,
-        section,
-      },
-    };
-  });
-  if (!dryRun) {
-    expect(subEvents).to.be.like(events);
-  }
-  return subEvents;
-}
modifiedtests/src/util/playgrounds/index.tsdiffbeforeafterboth
--- a/tests/src/util/playgrounds/index.ts
+++ b/tests/src/util/playgrounds/index.ts
@@ -62,6 +62,7 @@
   Fungible = 'fungible',
   NFT = 'nonfungible',
   Scheduler = 'scheduler',
+  AppPromotion = 'apppromotion',
 }
 
 export function requirePalletsOrSkip(test: Context, helper: DevUniqueHelper, requiredPallets: string[]) {
modifiedtests/src/util/playgrounds/types.tsdiffbeforeafterboth
--- a/tests/src/util/playgrounds/types.ts
+++ b/tests/src/util/playgrounds/types.ts
@@ -14,6 +14,7 @@
 export interface ITransactionResult {
   status: 'Fail' | 'Success';
   result: {
+      dispatchError: any,
       events: {
         phase: any, // {ApplyExtrinsic: number} | 'Initialization',
         event: IEvent;
@@ -47,6 +48,7 @@
   call: string;
   params: any[];
   moduleError?: string;
+  dispatchError?: any;
   events?: any;
 }
 
@@ -162,6 +164,14 @@
   amount: bigint,
 }
 
+export interface ISchedulerOptions {
+  priority?: number,
+  periodic?: {
+    period: number,
+    repetitions: number,
+  },
+}
+
 export type TSubstrateAccount = string;
 export type TEthereumAccount = string;
 export type TApiAllowedListeners = 'connected' | 'disconnected' | 'error' | 'ready' | 'decorated';
modifiedtests/src/util/playgrounds/unique.dev.tsdiffbeforeafterboth
--- a/tests/src/util/playgrounds/unique.dev.ts
+++ b/tests/src/util/playgrounds/unique.dev.ts
@@ -8,7 +8,6 @@
 import {IKeyringPair} from '@polkadot/types/types';
 import {ICrossAccountId} from './types';
 
-
 export class SilentLogger {
   log(_msg: any, _level: any): void { }
   level = {
@@ -63,8 +62,10 @@
   wait: WaitGroup;
   admin: AdminGroup;
 
-  constructor(logger: { log: (msg: any, level: any) => void, level: any }) {
-    super(logger);
+  constructor(logger: { log: (msg: any, level: any) => void, level: any }, options: {[key: string]: any} = {}) {
+    options.helperBase = options.helperBase ?? DevUniqueHelper;
+
+    super(logger, options);
     this.arrange = new ArrangeGroup(this);
     this.wait = new WaitGroup(this);
     this.admin = new AdminGroup(this);
@@ -108,9 +109,9 @@
 }
 
 class ArrangeGroup {
-  helper: UniqueHelper;
+  helper: DevUniqueHelper;
 
-  constructor(helper: UniqueHelper) {
+  constructor(helper: DevUniqueHelper) {
     this.helper = helper;
   }
 
@@ -215,8 +216,8 @@
   };
 
   isDevNode = async () => {
-    const block1 = await this.helper.api?.rpc.chain.getBlock(await this.helper.api?.rpc.chain.getBlockHash(1));
-    const block2 = await this.helper.api?.rpc.chain.getBlock(await this.helper.api?.rpc.chain.getBlockHash(2));
+    const block1 = await this.helper.callRpc('api.rpc.chain.getBlock', [await this.helper.callRpc('api.rpc.chain.getBlockHash', [1])]);
+    const block2 = await this.helper.callRpc('api.rpc.chain.getBlock', [await this.helper.callRpc('api.rpc.chain.getBlockHash', [2])]);
     const findCreationDate = async (block: any) => {
       const humanBlock = block.toHuman();
       let date;
@@ -245,21 +246,21 @@
 }
 
 class WaitGroup {
-  helper: UniqueHelper;
+  helper: DevUniqueHelper;
 
-  constructor(helper: UniqueHelper) {
+  constructor(helper: DevUniqueHelper) {
     this.helper = helper;
   }
 
   /**
-   * Wait for specified bnumber of blocks
+   * Wait for specified number of blocks
    * @param blocksCount number of blocks to wait
    * @returns 
    */
   async newBlocks(blocksCount = 1): Promise<void> {
     // eslint-disable-next-line no-async-promise-executor
     const promise = new Promise<void>(async (resolve) => {
-      const unsubscribe = await this.helper.api!.rpc.chain.subscribeNewHeads(() => {
+      const unsubscribe = await this.helper.getApi().rpc.chain.subscribeNewHeads(() => {
         if (blocksCount > 0) {
           blocksCount--;
         } else {
@@ -274,7 +275,7 @@
   async forParachainBlockNumber(blockNumber: bigint) {
     // eslint-disable-next-line no-async-promise-executor
     return new Promise<void>(async (resolve) => {
-      const unsubscribe = await this.helper.api!.rpc.chain.subscribeNewHeads(async (data: any) => {
+      const unsubscribe = await this.helper.getApi().rpc.chain.subscribeNewHeads(async (data: any) => {
         if (data.number.toNumber() >= blockNumber) {
           unsubscribe();
           resolve();
@@ -286,7 +287,7 @@
   async forRelayBlockNumber(blockNumber: bigint) {
     // eslint-disable-next-line no-async-promise-executor
     return new Promise<void>(async (resolve) => {
-      const unsubscribe = await this.helper.api!.query.parachainSystem.validationData(async (data: any) => {
+      const unsubscribe = await this.helper.getApi().query.parachainSystem.validationData(async (data: any) => {
         if (data.value.relayParentNumber.toNumber() >= blockNumber) {
           // @ts-ignore
           unsubscribe();
modifiedtests/src/util/playgrounds/unique.tsdiffbeforeafterboth
before · tests/src/util/playgrounds/unique.ts
1// Copyright 2019-2022 Unique Network (Gibraltar) Ltd.2// SPDX-License-Identifier: Apache-2.034/* eslint-disable @typescript-eslint/no-var-requires */5/* eslint-disable function-call-argument-newline */6/* eslint-disable no-prototype-builtins */78import {ApiPromise, WsProvider, Keyring} from '@polkadot/api';9import {ApiInterfaceEvents, SignerOptions} from '@polkadot/api/types';10import {encodeAddress, decodeAddress, keccakAsHex, evmToAddress, addressToEvm} from '@polkadot/util-crypto';11import {IKeyringPair} from '@polkadot/types/types';12import {IApiListeners, IBlock, IEvent, IChainProperties, ICollectionCreationOptions, ICollectionLimits, ICollectionPermissions, ICrossAccountId, ICrossAccountIdLower, ILogger, INestingPermissions, IProperty, IStakingInfo, ISubstrateBalance, IToken, ITokenPropertyPermission, ITransactionResult, IUniqueHelperLog, TApiAllowedListeners, TEthereumAccount, TSigner, TSubstrateAccount, TUniqueNetworks} from './types';1314export class CrossAccountId implements ICrossAccountId {15  Substrate?: TSubstrateAccount;16  Ethereum?: TEthereumAccount;1718  constructor(account: ICrossAccountId) {19    if (account.Substrate) this.Substrate = account.Substrate;20    if (account.Ethereum) this.Ethereum = account.Ethereum;21  }2223  static fromKeyring(account: IKeyringPair, domain: 'Substrate' | 'Ethereum' = 'Substrate') {24    switch (domain) {25      case 'Substrate': return new CrossAccountId({Substrate: account.address});26      case 'Ethereum': return new CrossAccountId({Substrate: account.address}).toEthereum();27    }28  }2930  static fromLowerCaseKeys(address: ICrossAccountIdLower): CrossAccountId {31    return new CrossAccountId({Substrate: address.substrate, Ethereum: address.ethereum});32  }3334  static normalizeSubstrateAddress(address: TSubstrateAccount, ss58Format = 42): TSubstrateAccount {35    return encodeAddress(decodeAddress(address), ss58Format);36  }3738  static withNormalizedSubstrate(address: TSubstrateAccount, ss58Format = 42): CrossAccountId {39    return new CrossAccountId({Substrate: CrossAccountId.normalizeSubstrateAddress(address, ss58Format)});40  }41  42  withNormalizedSubstrate(ss58Format = 42): CrossAccountId {43    if (this.Substrate) return CrossAccountId.withNormalizedSubstrate(this.Substrate, ss58Format);44    return this;45  }4647  static translateSubToEth(address: TSubstrateAccount): TEthereumAccount {48    return nesting.toChecksumAddress('0x' + Array.from(addressToEvm(address), i => i.toString(16).padStart(2, '0')).join(''));49  }5051  toEthereum(): CrossAccountId {52    if (this.Substrate) return new CrossAccountId({Ethereum: CrossAccountId.translateSubToEth(this.Substrate)});53    return this;54  }5556  static translateEthToSub(address: TEthereumAccount, ss58Format?: number): TSubstrateAccount {57    return evmToAddress(address, ss58Format);58  }5960  toSubstrate(ss58Format?: number): CrossAccountId {61    if (this.Ethereum) return new CrossAccountId({Substrate: CrossAccountId.translateEthToSub(this.Ethereum, ss58Format)});62    return this;63  }64  65  toLowerCase(): CrossAccountId {66    if (this.Substrate) this.Substrate = this.Substrate.toLowerCase();67    if (this.Ethereum) this.Ethereum = this.Ethereum.toLowerCase();68    return this;69  }70}7172const nesting = {73  toChecksumAddress(address: string): string {74    if (typeof address === 'undefined') return '';7576    if(!/^(0x)?[0-9a-f]{40}$/i.test(address)) throw new Error(`Given address "${address}" is not a valid Ethereum address.`);7778    address = address.toLowerCase().replace(/^0x/i,'');79    const addressHash = keccakAsHex(address).replace(/^0x/i,'');80    const checksumAddress = ['0x'];8182    for (let i = 0; i < address.length; i++) {83      // If ith character is 8 to f then make it uppercase84      if (parseInt(addressHash[i], 16) > 7) {85        checksumAddress.push(address[i].toUpperCase());86      } else {87        checksumAddress.push(address[i]);88      }89    }90    return checksumAddress.join('');91  },92  tokenIdToAddress(collectionId: number, tokenId: number) {93    return this.toChecksumAddress(`0xf8238ccfff8ed887463fd5e0${collectionId.toString(16).padStart(8, '0')}${tokenId.toString(16).padStart(8, '0')}`);94  },95};9697class UniqueUtil {98  static transactionStatus = {99    NOT_READY: 'NotReady',100    FAIL: 'Fail',101    SUCCESS: 'Success',102  };103104  static chainLogType = {105    EXTRINSIC: 'extrinsic',106    RPC: 'rpc',107  };108109  static getTokenAccount(token: IToken): CrossAccountId {110    return new CrossAccountId({Ethereum: this.getTokenAddress(token)});111  }112113  static getTokenAddress(token: IToken): string {114    return nesting.tokenIdToAddress(token.collectionId, token.tokenId);115  }116117  static getDefaultLogger(): ILogger {118    return {119      log(msg: any, level = 'INFO') {120        console[level.toLocaleLowerCase() === 'error' ? 'error' : 'log'](...(Array.isArray(msg) ? msg : [msg]));121      },122      level: {123        ERROR: 'ERROR',124        WARNING: 'WARNING',125        INFO: 'INFO',126      },127    };128  }129130  static vec2str(arr: string[] | number[]) {131    return arr.map(x => String.fromCharCode(parseInt(x.toString()))).join('');132  }133134  static str2vec(string: string) {135    if (typeof string !== 'string') return string;136    return Array.from(string).map(x => x.charCodeAt(0));137  }138139  static fromSeed(seed: string, ss58Format = 42) {140    const keyring = new Keyring({type: 'sr25519', ss58Format});141    return keyring.addFromUri(seed);142  }143144  static extractCollectionIdFromCreationResult(creationResult: ITransactionResult): number {145    if (creationResult.status !== this.transactionStatus.SUCCESS) {146      throw Error('Unable to create collection!');147    }148149    let collectionId = null;150    creationResult.result.events.forEach(({event: {data, method, section}}) => {151      if ((section === 'common') && (method === 'CollectionCreated')) {152        collectionId = parseInt(data[0].toString(), 10);153      }154    });155156    if (collectionId === null) {157      throw Error('No CollectionCreated event was found!');158    }159160    return collectionId;161  }162163  static extractTokensFromCreationResult(creationResult: ITransactionResult): {164    success: boolean, 165    tokens: {collectionId: number, tokenId: number, owner: CrossAccountId, amount: bigint}[],166  } {167    if (creationResult.status !== this.transactionStatus.SUCCESS) {168      throw Error('Unable to create tokens!');169    }170    let success = false;171    const tokens = [] as {collectionId: number, tokenId: number, owner: CrossAccountId, amount: bigint}[];172    creationResult.result.events.forEach(({event: {data, method, section}}) => {173      if (method === 'ExtrinsicSuccess') {174        success = true;175      } else if ((section === 'common') && (method === 'ItemCreated')) {176        tokens.push({177          collectionId: parseInt(data[0].toString(), 10),178          tokenId: parseInt(data[1].toString(), 10),179          owner: data[2].toHuman(),180          amount: data[3].toBigInt(),181        });182      }183    });184    return {success, tokens};185  }186187  static extractTokensFromBurnResult(burnResult: ITransactionResult): {188    success: boolean, 189    tokens: {collectionId: number, tokenId: number, owner: CrossAccountId, amount: bigint}[],190  } {191    if (burnResult.status !== this.transactionStatus.SUCCESS) {192      throw Error('Unable to burn tokens!');193    }194    let success = false;195    const tokens = [] as {collectionId: number, tokenId: number, owner: CrossAccountId, amount: bigint}[];196    burnResult.result.events.forEach(({event: {data, method, section}}) => {197      if (method === 'ExtrinsicSuccess') {198        success = true;199      } else if ((section === 'common') && (method === 'ItemDestroyed')) {200        tokens.push({201          collectionId: parseInt(data[0].toString(), 10),202          tokenId: parseInt(data[1].toString(), 10),203          owner: data[2].toHuman(),204          amount: data[3].toBigInt(),205        });206      }207    });208    return {success, tokens};209  }210211  static findCollectionInEvents(events: {event: IEvent}[], collectionId: number, expectedSection: string, expectedMethod: string): boolean {212    let eventId = null;213    events.forEach(({event: {data, method, section}}) => {214      if ((section === expectedSection) && (method === expectedMethod)) {215        eventId = parseInt(data[0].toString(), 10);216      }217    });218219    if (eventId === null) {220      throw Error(`No ${expectedMethod} event was found!`);221    }222    return eventId === collectionId;223  }224225  static isTokenTransferSuccess(events: {event: IEvent}[], collectionId: number, tokenId: number, fromAddressObj: ICrossAccountId, toAddressObj: ICrossAccountId, amount=1n) {226    const normalizeAddress = (address: string | ICrossAccountId) => {227      if(typeof address === 'string') return address;228      const obj = {} as any;229      Object.keys(address).forEach(k => {230        obj[k.toLocaleLowerCase()] = address[k as 'Substrate' | 'Ethereum'];231      });232      if(obj.substrate) return CrossAccountId.withNormalizedSubstrate(obj.substrate);233      if(obj.ethereum) return CrossAccountId.fromLowerCaseKeys(obj).toLowerCase();234      return address;235    };236    let transfer = {collectionId: null, tokenId: null, from: null, to: null, amount: 1} as any;237    events.forEach(({event: {data, method, section}}) => {238      if ((section === 'common') && (method === 'Transfer')) {239        const hData = (data as any).toJSON();240        transfer = {241          collectionId: hData[0],242          tokenId: hData[1],243          from: normalizeAddress(hData[2]),244          to: normalizeAddress(hData[3]),245          amount: BigInt(hData[4]),246        };247      }248    });249    let isSuccess = parseInt(collectionId.toString()) === transfer.collectionId && parseInt(tokenId.toString()) === transfer.tokenId;250    isSuccess = isSuccess && JSON.stringify(normalizeAddress(fromAddressObj)) === JSON.stringify(transfer.from);251    isSuccess = isSuccess && JSON.stringify(normalizeAddress(toAddressObj)) === JSON.stringify(transfer.to);252    isSuccess = isSuccess && amount === transfer.amount;253    return isSuccess;254  }255}256257class UniqueEventHelper {258  private static extractIndex(index: any): [number, number] | string {259    if(index.toRawType() === '[u8;2]') return [index[0], index[1]];260    return index.toJSON();261  }262263  private static extractSub(data: any, subTypes: any): {[key: string]: any} {264    let obj: any = {};265    let index = 0;266267    if (data.entries) {268      for(const [key, value] of data.entries()) {269        obj[key] = this.extractData(value, subTypes[index]);270        index++;271      }272    } else obj = data.toJSON();273274    return obj;275  }276  277  private static extractData(data: any, type: any): any {278    if (['u16', 'u32'].indexOf(type.type) > -1) return data.toNumber();279    if (['u64', 'u128', 'u256'].indexOf(type.type) > -1) return data.toBigInt();280    if(type.hasOwnProperty('sub')) return this.extractSub(data, type.sub);281    return data.toHuman();282  }283284  public static extractEvents(records: ITransactionResult): IEvent[] {285    const parsedEvents: IEvent[] = [];286287    records.result.events.forEach((record) => {288      const {event, phase} = record;289      const types = (event as any).typeDef;290291      const eventData: IEvent = {292        section: event.section.toString(),293        method: event.method.toString(),294        index: this.extractIndex(event.index),295        data: [],296        phase: phase.toJSON(),297      };298299      event.data.forEach((val: any, index: number) => {300        eventData.data.push(this.extractData(val, types[index]));301      });302303      parsedEvents.push(eventData);304    });305306    return parsedEvents;307  }308}309310class ChainHelperBase {311  transactionStatus = UniqueUtil.transactionStatus;312  chainLogType = UniqueUtil.chainLogType;313  util: typeof UniqueUtil;314  eventHelper: typeof UniqueEventHelper;315  logger: ILogger;316  api: ApiPromise | null;317  forcedNetwork: TUniqueNetworks | null;318  network: TUniqueNetworks | null;319  chainLog: IUniqueHelperLog[];320321  constructor(logger?: ILogger) {322    this.util = UniqueUtil;323    this.eventHelper = UniqueEventHelper;324    if (typeof logger == 'undefined') logger = this.util.getDefaultLogger();325    this.logger = logger;326    this.api = null;327    this.forcedNetwork = null;328    this.network = null;329    this.chainLog = [];330  }331332  clearChainLog(): void {333    this.chainLog = [];334  }335336  forceNetwork(value: TUniqueNetworks): void {337    this.forcedNetwork = value;338  }339340  async connect(wsEndpoint: string, listeners?: IApiListeners) {341    if (this.api !== null) throw Error('Already connected');342    const {api, network} = await ChainHelperBase.createConnection(wsEndpoint, listeners, this.forcedNetwork);343    this.api = api;344    this.network = network;345  }346347  async disconnect() {348    if (this.api === null) return;349    await this.api.disconnect();350    this.api = null;351    this.network = null;352  }353354  static async detectNetwork(api: ApiPromise): Promise<TUniqueNetworks> {355    const spec = (await api.query.system.lastRuntimeUpgrade()).toJSON() as any;356    if(['quartz', 'unique'].indexOf(spec.specName) > -1) return spec.specName;357    return 'opal';358  }359360  static async detectNetworkByWsEndpoint(wsEndpoint: string): Promise<TUniqueNetworks> {361    const api = new ApiPromise({provider: new WsProvider(wsEndpoint)});362    await api.isReady;363364    const network = await this.detectNetwork(api);365366    await api.disconnect();367368    return network;369  }370371  static async createConnection(wsEndpoint: string, listeners?: IApiListeners, network?: TUniqueNetworks | null): Promise<{372    api: ApiPromise;373    network: TUniqueNetworks;374  }> {375    if(typeof network === 'undefined' || network === null) network = 'opal';376    const supportedRPC = {377      opal: {378        unique: require('@unique-nft/opal-testnet-types/definitions').unique.rpc,379      },380      quartz: {381        unique: require('@unique-nft/quartz-mainnet-types/definitions').unique.rpc,382      },383      unique: {384        unique: require('@unique-nft/unique-mainnet-types/definitions').unique.rpc,385      },386    };387    if(!supportedRPC.hasOwnProperty(network)) network = await this.detectNetworkByWsEndpoint(wsEndpoint);388    const rpc = supportedRPC[network];389390    // TODO: investigate how to replace rpc in runtime391    // api._rpcCore.addUserInterfaces(rpc);392393    const api = new ApiPromise({provider: new WsProvider(wsEndpoint), rpc});394395    await api.isReadyOrError;396397    if (typeof listeners === 'undefined') listeners = {};398    for (const event of ['connected', 'disconnected', 'error', 'ready', 'decorated']) {399      if (!listeners.hasOwnProperty(event) || typeof listeners[event as TApiAllowedListeners] === 'undefined') continue;400      api.on(event as ApiInterfaceEvents, listeners[event as TApiAllowedListeners] as (...args: any[]) => any);401    }402403    return {api, network};404  }405406  getTransactionStatus(data: {events: {event: IEvent}[], status: any}) {407    const {events, status} = data;408    if (status.isReady) {409      return this.transactionStatus.NOT_READY;410    }411    if (status.isBroadcast) {412      return this.transactionStatus.NOT_READY;413    }414    if (status.isInBlock || status.isFinalized) {415      const errors = events.filter(e => e.event.method === 'ExtrinsicFailed');416      if (errors.length > 0) {417        return this.transactionStatus.FAIL;418      }419      if (events.filter(e => e.event.method === 'ExtrinsicSuccess').length > 0) {420        return this.transactionStatus.SUCCESS;421      }422    }423424    return this.transactionStatus.FAIL;425  }426427  signTransaction(sender: TSigner, transaction: any, options: Partial<SignerOptions> | null = null, label = 'transaction') {428    const sign = (callback: any) => {429      if(options !== null) return transaction.signAndSend(sender, options, callback);430      return transaction.signAndSend(sender, callback);431    };432    // eslint-disable-next-line no-async-promise-executor433    return new Promise(async (resolve, reject) => {434      try {435        const unsub = await sign((result: any) => {436          const status = this.getTransactionStatus(result);437438          if (status === this.transactionStatus.SUCCESS) {439            this.logger.log(`${label} successful`);440            unsub();441            resolve({result, status});442          } else if (status === this.transactionStatus.FAIL) {443            let moduleError = null;444445            if (result.hasOwnProperty('dispatchError')) {446              const dispatchError = result['dispatchError'];447448              if (dispatchError) {449                if (dispatchError.isModule) {450                  const modErr = dispatchError.asModule;451                  const errorMeta = dispatchError.registry.findMetaError(modErr);452453                  moduleError = `${errorMeta.section}.${errorMeta.name}`;454                } else {455                  moduleError = dispatchError.toHuman();456                }457              } else {458                this.logger.log(result, this.logger.level.ERROR);459              }460            }461462            this.logger.log(`Something went wrong with ${label}. Status: ${status}`, this.logger.level.ERROR);463            unsub();464            reject({status, moduleError, result});465          }466        });467      } catch (e) {468        this.logger.log(e, this.logger.level.ERROR);469        reject(e);470      }471    });472  }473474  constructApiCall(apiCall: string, params: any[]) {475    if(!apiCall.startsWith('api.')) throw Error(`Invalid api call: ${apiCall}`);476    let call = this.api as any;477    for(const part of apiCall.slice(4).split('.')) {478      call = call[part];479    }480    return call(...params);481  }482483  async executeExtrinsic(sender: TSigner, extrinsic: string, params: any[], expectSuccess=true, options: Partial<SignerOptions>|null = null/*, failureMessage='expected success'*/) {484    if(this.api === null) throw Error('API not initialized');485    if(!extrinsic.startsWith('api.tx.')) throw Error(`${extrinsic} is not transaction`);486487    const startTime = (new Date()).getTime();488    let result: ITransactionResult;489    let events: IEvent[] = [];490    try {491      result = await this.signTransaction(sender, this.constructApiCall(extrinsic, params), options, extrinsic) as ITransactionResult;492      events = this.eventHelper.extractEvents(result);493    }494    catch(e) {495      if(!(e as object).hasOwnProperty('status')) throw e;496      result = e as ITransactionResult;497    }498499    const endTime = (new Date()).getTime();500501    const log = {502      executedAt: endTime,503      executionTime: endTime - startTime,504      type: this.chainLogType.EXTRINSIC,505      status: result.status,506      call: extrinsic,507      signer: this.getSignerAddress(sender),508      params,509    } as IUniqueHelperLog;510511    if(result.status !== this.transactionStatus.SUCCESS && result.moduleError) log.moduleError = result.moduleError;512    if(events.length > 0) log.events = events;513514    this.chainLog.push(log);515516    if(expectSuccess && result.status !== this.transactionStatus.SUCCESS) throw Error(`${result.moduleError}`);517    return result;518  }519520  async callRpc(rpc: string, params?: any[]) {521    if(typeof params === 'undefined') params = [];522    if(this.api === null) throw Error('API not initialized');523    if(!rpc.startsWith('api.rpc.') && !rpc.startsWith('api.query.')) throw Error(`${rpc} is not RPC call`);524525    const startTime = (new Date()).getTime();526    let result;527    let error = null;528    const log = {529      type: this.chainLogType.RPC,530      call: rpc,531      params,532    } as IUniqueHelperLog;533534    try {535      result = await this.constructApiCall(rpc, params);536    }537    catch(e) {538      error = e;539    }540541    const endTime = (new Date()).getTime();542543    log.executedAt = endTime;544    log.status = (error === null ? this.transactionStatus.SUCCESS : this.transactionStatus.FAIL) as 'Fail' | 'Success';545    log.executionTime = endTime - startTime;546547    this.chainLog.push(log);548549    if(error !== null) throw error;550551    return result;552  }553554  getSignerAddress(signer: IKeyringPair | string): string {555    if(typeof signer === 'string') return signer;556    return signer.address;557  }558559  fetchAllPalletNames(): string[] {560    if(this.api === null) throw Error('API not initialized');561    return this.api.runtimeMetadata.asLatest.pallets.map(m => m.name.toString().toLowerCase());562  }563564  fetchMissingPalletNames(requiredPallets: string[]): string[] {565    const palletNames = this.fetchAllPalletNames();566    return requiredPallets.filter(p => !palletNames.includes(p));567  }568}569570571class HelperGroup {572  helper: UniqueHelper;573574  constructor(uniqueHelper: UniqueHelper) {575    this.helper = uniqueHelper;576  }577}578579580class CollectionGroup extends HelperGroup {581  /**582 * Get number of blocks when sponsored transaction is available.583 *584 * @param collectionId ID of collection585 * @param tokenId ID of token586 * @param addressObj address for which the sponsorship is checked587 * @example await getTokenNextSponsored(1, 2, {Substrate: '5DfhbVfww7ThF8q6f3...'});588 * @returns number of blocks or null if sponsorship hasn't been set589 */590  async getTokenNextSponsored(collectionId: number, tokenId: number, addressObj: ICrossAccountId): Promise<number | null> {591    return (await this.helper.callRpc('api.rpc.unique.nextSponsored', [collectionId, addressObj, tokenId])).toJSON();592  }593594  /**595   * Get the number of created collections.596   *597   * @returns number of created collections598   */599  async getTotalCount(): Promise<number> {600    return (await this.helper.callRpc('api.rpc.unique.collectionStats')).created.toNumber();601  }602603  /**604   * Get information about the collection with additional data,605   * including the number of tokens it contains, its administrators,606   * the normalized address of the collection's owner, and decoded name and description.607   *608   * @param collectionId ID of collection609   * @example await getData(2)610   * @returns collection information object611   */612  async getData(collectionId: number): Promise<{613    id: number;614    name: string;615    description: string;616    tokensCount: number;617    admins: CrossAccountId[];618    normalizedOwner: TSubstrateAccount;619    raw: any620  } | null> {621    const collection = await this.helper.callRpc('api.rpc.unique.collectionById', [collectionId]);622    const humanCollection = collection.toHuman(), collectionData = {623      id: collectionId, name: null, description: null, tokensCount: 0, admins: [],624      raw: humanCollection,625    } as any, jsonCollection = collection.toJSON();626    if (humanCollection === null) return null;627    collectionData.raw.limits = jsonCollection.limits;628    collectionData.raw.permissions = jsonCollection.permissions;629    collectionData.normalizedOwner = this.helper.address.normalizeSubstrate(collectionData.raw.owner);630    for (const key of ['name', 'description']) {631      collectionData[key] = this.helper.util.vec2str(humanCollection[key]);632    }633634    collectionData.tokensCount = (['RFT', 'NFT'].includes(humanCollection.mode))635      ? await this.helper[humanCollection.mode.toLocaleLowerCase() as 'nft' | 'rft'].getLastTokenId(collectionId)636      : 0;637    collectionData.admins = await this.getAdmins(collectionId);638639    return collectionData;640  }641642  /**643   * Get the addresses of the collection's administrators, optionally normalized.644   *645   * @param collectionId ID of collection646   * @param normalize whether to normalize the addresses to the default ss58 format647   * @example await getAdmins(1)648   * @returns array of administrators649   */650  async getAdmins(collectionId: number, normalize = false): Promise<CrossAccountId[]> {651    const admins = (await this.helper.callRpc('api.rpc.unique.adminlist', [collectionId])).toHuman();652653    return normalize654      ? admins.map((address: CrossAccountId) => address.withNormalizedSubstrate())655      : admins;656  }657658  /**659   * Get the addresses added to the collection allow-list, optionally normalized.660   * @param collectionId ID of collection661   * @param normalize whether to normalize the addresses to the default ss58 format662   * @example await getAllowList(1)663   * @returns array of allow-listed addresses664   */665  async getAllowList(collectionId: number, normalize = false): Promise<CrossAccountId[]> {666    const allowListed = (await this.helper.callRpc('api.rpc.unique.allowlist', [collectionId])).toHuman();667    return normalize668      ? allowListed.map((address: CrossAccountId) => address.withNormalizedSubstrate())669      : allowListed;670  }671672  /**673   * Get the effective limits of the collection instead of null for default values674   *675   * @param collectionId ID of collection676   * @example await getEffectiveLimits(2)677   * @returns object of collection limits678   */679  async getEffectiveLimits(collectionId: number): Promise<ICollectionLimits> {680    return (await this.helper.callRpc('api.rpc.unique.effectiveCollectionLimits', [collectionId])).toJSON();681  }682683  /**684   * Burns the collection if the signer has sufficient permissions and collection is empty.685   *686   * @param signer keyring of signer687   * @param collectionId ID of collection688   * @example await helper.collection.burn(aliceKeyring, 3);689   * @returns ```true``` if extrinsic success, otherwise ```false```690   */691  async burn(signer: TSigner, collectionId: number): Promise<boolean> {692    const result = await this.helper.executeExtrinsic(693      signer,694      'api.tx.unique.destroyCollection', [collectionId],695      true,696    );697698    return this.helper.util.findCollectionInEvents(result.result.events, collectionId, 'common', 'CollectionDestroyed');699  }700701  /**702   * Sets the sponsor for the collection (Requires the Substrate address). Needs confirmation by the sponsor.703   *704   * @param signer keyring of signer705   * @param collectionId ID of collection706   * @param sponsorAddress Sponsor substrate address707   * @example setSponsor(aliceKeyring, 10, "5DyN4Y92vZCjv38fg...")708   * @returns ```true``` if extrinsic success, otherwise ```false```709   */710  async setSponsor(signer: TSigner, collectionId: number, sponsorAddress: TSubstrateAccount): Promise<boolean> {711    const result = await this.helper.executeExtrinsic(712      signer,713      'api.tx.unique.setCollectionSponsor', [collectionId, sponsorAddress],714      true,715    );716717    return this.helper.util.findCollectionInEvents(result.result.events, collectionId, 'unique', 'CollectionSponsorSet');718  }719720  /**721   * Confirms consent to sponsor the collection on behalf of the signer.722   *723   * @param signer keyring of signer724   * @param collectionId ID of collection725   * @example confirmSponsorship(aliceKeyring, 10)726   * @returns ```true``` if extrinsic success, otherwise ```false```727   */728  async confirmSponsorship(signer: TSigner, collectionId: number): Promise<boolean> {729    const result = await this.helper.executeExtrinsic(730      signer,731      'api.tx.unique.confirmSponsorship', [collectionId],732      true,733    );734735    return this.helper.util.findCollectionInEvents(result.result.events, collectionId, 'unique', 'SponsorshipConfirmed');736  }737738  /**739   * Removes the sponsor of a collection, regardless if it consented or not.740   *741   * @param signer keyring of signer742   * @param collectionId ID of collection743   * @example removeSponsor(aliceKeyring, 10)744   * @returns ```true``` if extrinsic success, otherwise ```false```745   */746  async removeSponsor(signer: TSigner, collectionId: number): Promise<boolean> {747    const result = await this.helper.executeExtrinsic(748      signer,749      'api.tx.unique.removeCollectionSponsor', [collectionId],750      true,751    );752753    return this.helper.util.findCollectionInEvents(result.result.events, collectionId, 'unique', 'CollectionSponsorRemoved');754  }755756  /**757   * Sets the limits of the collection. At least one limit must be specified for a correct call.758   *759   * @param signer keyring of signer760   * @param collectionId ID of collection761   * @param limits collection limits object762   * @example763   * await setLimits(764   *   aliceKeyring,765   *   10,766   *   {767   *     sponsorTransferTimeout: 0,768   *     ownerCanDestroy: false769   *   }770   * )771   * @returns ```true``` if extrinsic success, otherwise ```false```772   */773  async setLimits(signer: TSigner, collectionId: number, limits: ICollectionLimits): Promise<boolean> {774    const result = await this.helper.executeExtrinsic(775      signer,776      'api.tx.unique.setCollectionLimits', [collectionId, limits],777      true,778    );779780    return this.helper.util.findCollectionInEvents(result.result.events, collectionId, 'unique', 'CollectionLimitSet');781  }782783  /**784   * Changes the owner of the collection to the new Substrate address.785   *786   * @param signer keyring of signer787   * @param collectionId ID of collection788   * @param ownerAddress substrate address of new owner789   * @example changeOwner(aliceKeyring, 10, "5DyN4Y92vZCjv38fg...")790   * @returns ```true``` if extrinsic success, otherwise ```false```791   */792  async changeOwner(signer: TSigner, collectionId: number, ownerAddress: TSubstrateAccount): Promise<boolean> {793    const result = await this.helper.executeExtrinsic(794      signer,795      'api.tx.unique.changeCollectionOwner', [collectionId, ownerAddress],796      true,797    );798799    return this.helper.util.findCollectionInEvents(result.result.events, collectionId, 'unique', 'CollectionOwnedChanged');800  }801802  /**803   * Adds a collection administrator.804   *805   * @param signer keyring of signer806   * @param collectionId ID of collection807   * @param adminAddressObj Administrator address (substrate or ethereum)808   * @example addAdmin(aliceKeyring, 10, {Substrate: "5DyN4Y92vZCjv38fg..."})809   * @returns ```true``` if extrinsic success, otherwise ```false```810   */811  async addAdmin(signer: TSigner, collectionId: number, adminAddressObj: ICrossAccountId): Promise<boolean> {812    const result = await this.helper.executeExtrinsic(813      signer,814      'api.tx.unique.addCollectionAdmin', [collectionId, adminAddressObj],815      true,816    );817818    return this.helper.util.findCollectionInEvents(result.result.events, collectionId, 'unique', 'CollectionAdminAdded');819  }820821  /**822   * Removes a collection administrator.823   *824   * @param signer keyring of signer825   * @param collectionId ID of collection826   * @param adminAddressObj Administrator address (substrate or ethereum)827   * @example removeAdmin(aliceKeyring, 10, {Substrate: "5DyN4Y92vZCjv38fg..."})828   * @returns ```true``` if extrinsic success, otherwise ```false```829   */830  async removeAdmin(signer: TSigner, collectionId: number, adminAddressObj: ICrossAccountId): Promise<boolean> {831    const result = await this.helper.executeExtrinsic(832      signer,833      'api.tx.unique.removeCollectionAdmin', [collectionId, adminAddressObj],834      true,835    );836837    return this.helper.util.findCollectionInEvents(result.result.events, collectionId, 'unique', 'CollectionAdminRemoved');838  }839840  /**841   * Check if user is in allow list.842   * 843   * @param collectionId ID of collection844   * @param user Account to check845   * @example await getAdmins(1)846   * @returns is user in allow list847   */848  async allowed(collectionId: number, user: ICrossAccountId): Promise<boolean> {849    return (await this.helper.callRpc('api.rpc.unique.allowed', [collectionId, user])).toJSON();850  }851852  /**853   * Adds an address to allow list854   * @param signer keyring of signer855   * @param collectionId ID of collection856   * @param addressObj address to add to the allow list857   * @returns ```true``` if extrinsic success, otherwise ```false```858   */859  async addToAllowList(signer: TSigner, collectionId: number, addressObj: ICrossAccountId): Promise<boolean> {860    const result = await this.helper.executeExtrinsic(861      signer,862      'api.tx.unique.addToAllowList', [collectionId, addressObj],863      true,864    );865866    return this.helper.util.findCollectionInEvents(result.result.events, collectionId, 'unique', 'AllowListAddressAdded');867  }868869  /**870   * Removes an address from allow list871   *872   * @param signer keyring of signer873   * @param collectionId ID of collection874   * @param addressObj address to remove from the allow list875   * @returns ```true``` if extrinsic success, otherwise ```false```876   */877  async removeFromAllowList(signer: TSigner, collectionId: number, addressObj: ICrossAccountId): Promise<boolean> {878    const result = await this.helper.executeExtrinsic(879      signer,880      'api.tx.unique.removeFromAllowList', [collectionId, addressObj],881      true,882    );883884    return this.helper.util.findCollectionInEvents(result.result.events, collectionId, 'unique', 'AllowListAddressRemoved');885  }886887  /**888   * Sets onchain permissions for selected collection.889   *890   * @param signer keyring of signer891   * @param collectionId ID of collection892   * @param permissions collection permissions object893   * @example setPermissions(aliceKeyring, 10, {access:'AllowList', mintMode: true, nesting: {collectionAdmin: true, tokenOwner: true}});894   * @returns ```true``` if extrinsic success, otherwise ```false```895   */896  async setPermissions(signer: TSigner, collectionId: number, permissions: ICollectionPermissions): Promise<boolean> {897    const result = await this.helper.executeExtrinsic(898      signer,899      'api.tx.unique.setCollectionPermissions', [collectionId, permissions],900      true,901    );902903    return this.helper.util.findCollectionInEvents(result.result.events, collectionId, 'unique', 'CollectionPermissionSet');904  }905906  /**907   * Enables nesting for selected collection. If `restricted` set, you can nest only tokens from specified collections.908   *909   * @param signer keyring of signer910   * @param collectionId ID of collection911   * @param permissions nesting permissions object912   * @example enableNesting(aliceKeyring, 10, {collectionAdmin: true, tokenOwner: true});913   * @returns ```true``` if extrinsic success, otherwise ```false```914   */915  async enableNesting(signer: TSigner, collectionId: number, permissions: INestingPermissions): Promise<boolean> {916    return await this.setPermissions(signer, collectionId, {nesting: permissions});917  }918919  /**920   * Disables nesting for selected collection.921   *922   * @param signer keyring of signer923   * @param collectionId ID of collection924   * @example disableNesting(aliceKeyring, 10);925   * @returns ```true``` if extrinsic success, otherwise ```false```926   */927  async disableNesting(signer: TSigner, collectionId: number): Promise<boolean> {928    return await this.setPermissions(signer, collectionId, {nesting: {tokenOwner: false, collectionAdmin: false}});929  }930931  /**932   * Sets onchain properties to the collection.933   *934   * @param signer keyring of signer935   * @param collectionId ID of collection936   * @param properties array of property objects937   * @example setProperties(aliceKeyring, 10, [{key: "gender", value: "male"}]);938   * @returns ```true``` if extrinsic success, otherwise ```false```939   */940  async setProperties(signer: TSigner, collectionId: number, properties: IProperty[]): Promise<boolean> {941    const result = await this.helper.executeExtrinsic(942      signer,943      'api.tx.unique.setCollectionProperties', [collectionId, properties],944      true,945    );946947    return this.helper.util.findCollectionInEvents(result.result.events, collectionId, 'common', 'CollectionPropertySet');948  }949950  /**951   * Get collection properties.952   * 953   * @param collectionId ID of collection954   * @param propertyKeys optionally filter the returned properties to only these keys955   * @example getProperties(1219, ['location', 'date', 'time', 'isParadise']);956   * @returns array of key-value pairs957   */958  async getProperties(collectionId: number, propertyKeys?: string[] | null): Promise<IProperty[]> {959    return (await this.helper.callRpc('api.rpc.unique.collectionProperties', [collectionId, propertyKeys])).toHuman();960  }961962  /**963   * Deletes onchain properties from the collection.964   *965   * @param signer keyring of signer966   * @param collectionId ID of collection967   * @param propertyKeys array of property keys to delete968   * @example deleteProperties(aliceKeyring, 10, ["gender", "age"]);969   * @returns ```true``` if extrinsic success, otherwise ```false```970   */971  async deleteProperties(signer: TSigner, collectionId: number, propertyKeys: string[]): Promise<boolean> {972    const result = await this.helper.executeExtrinsic(973      signer,974      'api.tx.unique.deleteCollectionProperties', [collectionId, propertyKeys],975      true,976    );977978    return this.helper.util.findCollectionInEvents(result.result.events, collectionId, 'common', 'CollectionPropertyDeleted');979  }980981  /**982   * Changes the owner of the token.983   *984   * @param signer keyring of signer985   * @param collectionId ID of collection986   * @param tokenId ID of token987   * @param addressObj address of a new owner988   * @param amount amount of tokens to be transfered. For NFT must be set to 1n989   * @example transferToken(aliceKeyring, 10, 5, {Substrate: "5DyN4Y92vZCjv38fg..."})990   * @returns true if the token success, otherwise false991   */992  async transferToken(signer: TSigner, collectionId: number, tokenId: number, addressObj: ICrossAccountId, amount=1n): Promise<boolean> {993    const result = await this.helper.executeExtrinsic(994      signer,995      'api.tx.unique.transfer', [addressObj, collectionId, tokenId, amount],996      true, // `Unable to transfer token #${tokenId} from collection #${collectionId}`,997    );998999    return this.helper.util.isTokenTransferSuccess(result.result.events, collectionId, tokenId, {Substrate: typeof signer === 'string' ? signer : signer.address}, addressObj, amount);1000  }10011002  /**1003   *1004   * Change ownership of a token(s) on behalf of the owner.1005   *1006   * @param signer keyring of signer1007   * @param collectionId ID of collection1008   * @param tokenId ID of token1009   * @param fromAddressObj address on behalf of which the token will be sent1010   * @param toAddressObj new token owner1011   * @param amount amount of tokens to be transfered. For NFT must be set to 1n1012   * @example transferTokenFrom(aliceKeyring, 10, 5, {Substrate: "5DyN4Y92vZCjv38fg"}, {Ethereum: "0x9F0583DbB85..."})1013   * @returns true if the token success, otherwise false1014   */1015  async transferTokenFrom(signer: TSigner, collectionId: number, tokenId: number, fromAddressObj: ICrossAccountId, toAddressObj: ICrossAccountId, amount=1n): Promise<boolean> {1016    const result = await this.helper.executeExtrinsic(1017      signer,1018      'api.tx.unique.transferFrom', [fromAddressObj, toAddressObj, collectionId, tokenId, amount],1019      true, // `Unable to transfer token #${tokenId} from collection #${collectionId}`,1020    );1021    return this.helper.util.isTokenTransferSuccess(result.result.events, collectionId, tokenId, fromAddressObj, toAddressObj, amount);1022  }10231024  /**1025   *1026   * Destroys a concrete instance of NFT/RFT or burns a specified amount of fungible tokens.1027   *1028   * @param signer keyring of signer1029   * @param collectionId ID of collection1030   * @param tokenId ID of token1031   * @param amount amount of tokens to be burned. For NFT must be set to 1n1032   * @example burnToken(aliceKeyring, 10, 5);1033   * @returns ```true``` if the extrinsic is successful, otherwise ```false```1034   */1035  async burnToken(signer: TSigner, collectionId: number, tokenId: number, amount=1n): Promise<boolean> {1036    const burnResult = await this.helper.executeExtrinsic(1037      signer,1038      'api.tx.unique.burnItem', [collectionId, tokenId, amount],1039      true, // `Unable to burn token for ${label}`,1040    );1041    const burnedTokens = this.helper.util.extractTokensFromBurnResult(burnResult);1042    if (burnedTokens.tokens.length > 1) throw Error('Burned multiple tokens');1043    return burnedTokens.success;1044  }10451046  /**1047   * Destroys a concrete instance of NFT on behalf of the owner1048   *1049   * @param signer keyring of signer1050   * @param collectionId ID of collection1051   * @param tokenId ID of token1052   * @param fromAddressObj address on behalf of which the token will be burnt1053   * @param amount amount of tokens to be burned. For NFT must be set to 1n1054   * @example burnTokenFrom(aliceKeyring, 10, {Substrate: "5DyN4Y92vZCjv38fg..."}, 5, {Ethereum: "0x9F0583DbB85..."})1055   * @returns ```true``` if extrinsic success, otherwise ```false```1056   */1057  async burnTokenFrom(signer: TSigner, collectionId: number, tokenId: number, fromAddressObj: ICrossAccountId, amount=1n): Promise<boolean> {1058    const burnResult = await this.helper.executeExtrinsic(1059      signer,1060      'api.tx.unique.burnFrom', [collectionId, fromAddressObj, tokenId, amount],1061      true, // `Unable to burn token from for ${label}`,1062    );1063    const burnedTokens = this.helper.util.extractTokensFromBurnResult(burnResult);1064    return burnedTokens.success && burnedTokens.tokens.length > 0;1065  }10661067  /**1068   * Set, change, or remove approved address to transfer the ownership of the NFT.1069   *1070   * @param signer keyring of signer1071   * @param collectionId ID of collection1072   * @param tokenId ID of token1073   * @param toAddressObj Substrate or Ethereum address which gets approved use of the signer's tokens1074   * @param amount amount of token to be approved. For NFT must be set to 1n1075   * @returns ```true``` if extrinsic success, otherwise ```false```1076   */1077  async approveToken(signer: IKeyringPair, collectionId: number, tokenId: number, toAddressObj: ICrossAccountId, amount=1n) {1078    const approveResult = await this.helper.executeExtrinsic(1079      signer,1080      'api.tx.unique.approve', [toAddressObj, collectionId, tokenId, amount],1081      true, // `Unable to approve token for ${label}`,1082    );10831084    return this.helper.util.findCollectionInEvents(approveResult.result.events, collectionId, 'common', 'Approved');1085  }10861087  /**1088   * Get the amount of token pieces approved to transfer or burn. Normally 0.1089   *1090   * @param collectionId ID of collection1091   * @param tokenId ID of token1092   * @param toAccountObj address which is approved to use token pieces1093   * @param fromAccountObj address which may have allowed the use of its owned tokens1094   * @example getTokenApprovedPieces(10, 5, {Substrate: "5DyN4Y92vZCjv38fg..."}, {Substrate: "5ERZNF88Mm7UGfPP3mdG..."})1095   * @returns number of approved to transfer pieces1096   */1097  async getTokenApprovedPieces(collectionId: number, tokenId: number, toAccountObj: ICrossAccountId, fromAccountObj: ICrossAccountId): Promise<bigint> {1098    return (await this.helper.callRpc('api.rpc.unique.allowance', [collectionId, fromAccountObj, toAccountObj, tokenId])).toBigInt();1099  }11001101  /**1102   * Get the last created token ID in a collection1103   *1104   * @param collectionId ID of collection1105   * @example getLastTokenId(10);1106   * @returns id of the last created token1107   */1108  async getLastTokenId(collectionId: number): Promise<number> {1109    return (await this.helper.callRpc('api.rpc.unique.lastTokenId', [collectionId])).toNumber();1110  }11111112  /**1113   * Check if token exists1114   *1115   * @param collectionId ID of collection1116   * @param tokenId ID of token1117   * @example doesTokenExist(10, 20);1118   * @returns true if the token exists, otherwise false1119   */1120  async doesTokenExist(collectionId: number, tokenId: number): Promise<boolean> {1121    return (await this.helper.callRpc('api.rpc.unique.tokenExists', [collectionId, tokenId])).toJSON();1122  }1123}11241125class NFTnRFT extends CollectionGroup {1126  /**1127   * Get tokens owned by account1128   *1129   * @param collectionId ID of collection1130   * @param addressObj tokens owner1131   * @example getTokensByAddress(10, {Substrate: "5DyN4Y92vZCjv38fg..."})1132   * @returns array of token ids owned by account1133   */1134  async getTokensByAddress(collectionId: number, addressObj: ICrossAccountId): Promise<number[]> {1135    return (await this.helper.callRpc('api.rpc.unique.accountTokens', [collectionId, addressObj])).toJSON();1136  }11371138  /**1139   * Get token data1140   *1141   * @param collectionId ID of collection1142   * @param tokenId ID of token1143   * @param propertyKeys optionally filter the token properties to only these keys1144   * @param blockHashAt optionally query the data at some block with this hash1145   * @example getToken(10, 5);1146   * @returns human readable token data1147   */1148  async getToken(collectionId: number, tokenId: number, propertyKeys: string[] = [], blockHashAt?: string): Promise<{1149    properties: IProperty[];1150    owner: CrossAccountId;1151    normalizedOwner: CrossAccountId;1152  }| null> {1153    let tokenData;1154    if(typeof blockHashAt === 'undefined') {1155      tokenData = await this.helper.callRpc('api.rpc.unique.tokenData', [collectionId, tokenId]);1156    }1157    else {1158      if(propertyKeys.length == 0) {1159        const collection = (await this.helper.callRpc('api.rpc.unique.collectionById', [collectionId])).toHuman();1160        if(!collection) return null;1161        propertyKeys = collection.tokenPropertyPermissions.map((x: ITokenPropertyPermission) => x.key);1162      }1163      tokenData = await this.helper.callRpc('api.rpc.unique.tokenData', [collectionId, tokenId, propertyKeys, blockHashAt]);1164    }1165    tokenData = tokenData.toHuman();1166    if (tokenData === null || tokenData.owner === null) return null;1167    const owner = {} as any;1168    for (const key of Object.keys(tokenData.owner)) {1169      owner[key.toLocaleLowerCase()] = key.toLocaleLowerCase() == 'substrate' 1170        ? CrossAccountId.normalizeSubstrateAddress(tokenData.owner[key]) 1171        : tokenData.owner[key];1172    }1173    tokenData.normalizedOwner = CrossAccountId.fromLowerCaseKeys(owner);1174    return tokenData;1175  }11761177  /**1178   * Set permissions to change token properties1179   *1180   * @param signer keyring of signer1181   * @param collectionId ID of collection1182   * @param permissions permissions to change a property by the collection admin or token owner1183   * @example setTokenPropertyPermissions(1184   *   aliceKeyring, 10, [{key: "gender", permission: {tokenOwner: true, mutable: true, collectionAdmin: true}}]1185   * )1186   * @returns true if extrinsic success otherwise false1187   */1188  async setTokenPropertyPermissions(signer: TSigner, collectionId: number, permissions: ITokenPropertyPermission[]): Promise<boolean> {1189    const result = await this.helper.executeExtrinsic(1190      signer,1191      'api.tx.unique.setTokenPropertyPermissions', [collectionId, permissions],1192      true,1193    );11941195    return this.helper.util.findCollectionInEvents(result.result.events, collectionId, 'common', 'PropertyPermissionSet');1196  }11971198  /**1199   * Get token property permissions.1200   * 1201   * @param collectionId ID of collection1202   * @param propertyKeys optionally filter the returned property permissions to only these keys1203   * @example getPropertyPermissions(1219, ['location', 'date', 'time', 'isParadise']);1204   * @returns array of key-permission pairs1205   */1206  async getPropertyPermissions(collectionId: number, propertyKeys: string[] | null = null): Promise<ITokenPropertyPermission[]> {1207    return (await this.helper.callRpc('api.rpc.unique.propertyPermissions', [collectionId, ...(propertyKeys === null ? [] : [propertyKeys])])).toHuman();1208  }12091210  /**1211   * Set token properties1212   *1213   * @param signer keyring of signer1214   * @param collectionId ID of collection1215   * @param tokenId ID of token1216   * @param properties key-value pairs of metadata which to add to a token. Keys must be permitted in the collection1217   * @example setTokenProperties(aliceKeyring, 10, 5, [{key: "gender", value: "female"}, {key: "age", value: "23"}])1218   * @returns ```true``` if extrinsic success, otherwise ```false```1219   */1220  async setTokenProperties(signer: TSigner, collectionId: number, tokenId: number, properties: IProperty[]): Promise<boolean> {1221    const result = await this.helper.executeExtrinsic(1222      signer,1223      'api.tx.unique.setTokenProperties', [collectionId, tokenId, properties],1224      true,1225    );12261227    return this.helper.util.findCollectionInEvents(result.result.events, collectionId, 'common', 'TokenPropertySet');1228  }12291230  /**1231   * Get properties, metadata assigned to a token.1232   * 1233   * @param collectionId ID of collection1234   * @param tokenId ID of token1235   * @param propertyKeys optionally filter the returned properties to only these keys1236   * @example getTokenProperties(1219, ['location', 'date', 'time', 'isParadise']);1237   * @returns array of key-value pairs1238   */1239  async getTokenProperties(collectionId: number, tokenId: number, propertyKeys?: string[] | null): Promise<IProperty[]> {1240    return (await this.helper.callRpc('api.rpc.unique.tokenProperties', [collectionId, tokenId, propertyKeys])).toHuman();1241  }12421243  /**1244   * Delete the provided properties of a token1245   * @param signer keyring of signer1246   * @param collectionId ID of collection1247   * @param tokenId ID of token1248   * @param propertyKeys property keys to be deleted1249   * @example deleteTokenProperties(aliceKeyring, 10, 5, ["gender", "age"])1250   * @returns ```true``` if extrinsic success, otherwise ```false```1251   */1252  async deleteTokenProperties(signer: TSigner, collectionId: number, tokenId: number, propertyKeys: string[]): Promise<boolean> {1253    const result = await this.helper.executeExtrinsic(1254      signer,1255      'api.tx.unique.deleteTokenProperties', [collectionId, tokenId, propertyKeys],1256      true,1257    );12581259    return this.helper.util.findCollectionInEvents(result.result.events, collectionId, 'common', 'TokenPropertyDeleted');1260  }12611262  /**1263   * Mint new collection1264   *1265   * @param signer keyring of signer1266   * @param collectionOptions basic collection options and properties1267   * @param mode NFT or RFT type of a collection1268   * @example mintCollection(aliceKeyring, {name: 'New', description: "New collection", tokenPrefix: "NEW"}, "NFT")1269   * @returns object of the created collection1270   */1271  async mintCollection(signer: TSigner, collectionOptions: ICollectionCreationOptions, mode: 'NFT' | 'RFT'): Promise<UniqueBaseCollection> {1272    collectionOptions = JSON.parse(JSON.stringify(collectionOptions)) as ICollectionCreationOptions; // Clone object1273    collectionOptions.mode = (mode === 'NFT') ? {nft: null} : {refungible: null};1274    for (const key of ['name', 'description', 'tokenPrefix']) {1275      if (typeof collectionOptions[key as 'name' | 'description' | 'tokenPrefix'] === 'string') collectionOptions[key as 'name' | 'description' | 'tokenPrefix'] = this.helper.util.str2vec(collectionOptions[key as 'name' | 'description' | 'tokenPrefix'] as string);1276    }1277    const creationResult = await this.helper.executeExtrinsic(1278      signer,1279      'api.tx.unique.createCollectionEx', [collectionOptions],1280      true, // errorLabel,1281    );1282    return this.getCollectionObject(this.helper.util.extractCollectionIdFromCreationResult(creationResult));1283  }12841285  getCollectionObject(_collectionId: number): any {1286    return null;1287  }12881289  getTokenObject(_collectionId: number, _tokenId: number): any {1290    return null;1291  }1292}129312941295class NFTGroup extends NFTnRFT {1296  /**1297   * Get collection object1298   * @param collectionId ID of collection1299   * @example getCollectionObject(2);1300   * @returns instance of UniqueNFTCollection1301   */1302  getCollectionObject(collectionId: number): UniqueNFTCollection {1303    return new UniqueNFTCollection(collectionId, this.helper);1304  }13051306  /**1307   * Get token object1308   * @param collectionId ID of collection1309   * @param tokenId ID of token1310   * @example getTokenObject(10, 5);1311   * @returns instance of UniqueNFTToken1312   */1313  getTokenObject(collectionId: number, tokenId: number): UniqueNFToken {1314    return new UniqueNFToken(tokenId, this.getCollectionObject(collectionId));1315  }13161317  /**1318   * Get token's owner1319   * @param collectionId ID of collection1320   * @param tokenId ID of token1321   * @param blockHashAt optionally query the data at the block with this hash1322   * @example getTokenOwner(10, 5);1323   * @returns Address in CrossAccountId format, e.g. {Substrate: "5DnSF6RRjwteE3BrCj..."}1324   */1325  async getTokenOwner(collectionId: number, tokenId: number, blockHashAt?: string): Promise<CrossAccountId> {1326    let owner;1327    if (typeof blockHashAt === 'undefined') {1328      owner = await this.helper.callRpc('api.rpc.unique.tokenOwner', [collectionId, tokenId]);1329    } else {1330      owner = await this.helper.callRpc('api.rpc.unique.tokenOwner', [collectionId, tokenId, blockHashAt]);1331    }1332    return CrossAccountId.fromLowerCaseKeys(owner.toJSON());1333  }13341335  /**1336   * Is token approved to transfer1337   * @param collectionId ID of collection1338   * @param tokenId ID of token1339   * @param toAccountObj address to be approved1340   * @returns ```true``` if extrinsic success, otherwise ```false```1341   */1342  async isTokenApproved(collectionId: number, tokenId: number, toAccountObj: ICrossAccountId): Promise<boolean> {1343    return (await this.getTokenApprovedPieces(collectionId, tokenId, toAccountObj, await this.getTokenOwner(collectionId, tokenId))) === 1n;1344  }13451346  /**1347   * Changes the owner of the token.1348   *1349   * @param signer keyring of signer1350   * @param collectionId ID of collection1351   * @param tokenId ID of token1352   * @param addressObj address of a new owner1353   * @example transferToken(aliceKeyring, 10, 5, {Substrate: "5DyN4Y92vZCjv38fg..."})1354   * @returns ```true``` if extrinsic success, otherwise ```false```1355   */1356  async transferToken(signer: TSigner, collectionId: number, tokenId: number, addressObj: ICrossAccountId): Promise<boolean> {1357    return await super.transferToken(signer, collectionId, tokenId, addressObj, 1n);1358  }13591360  /**1361   *1362   * Change ownership of a NFT on behalf of the owner.1363   *1364   * @param signer keyring of signer1365   * @param collectionId ID of collection1366   * @param tokenId ID of token1367   * @param fromAddressObj address on behalf of which the token will be sent1368   * @param toAddressObj new token owner1369   * @example transferTokenFrom(aliceKeyring, 10, 5, {Substrate: "5DyN4Y92vZCjv38fg..."}, {Ethereum: "0x9F0583DbB85..."})1370   * @returns ```true``` if extrinsic success, otherwise ```false```1371   */1372  async transferTokenFrom(signer: TSigner, collectionId: number, tokenId: number, fromAddressObj: ICrossAccountId, toAddressObj: ICrossAccountId): Promise<boolean> {1373    return await super.transferTokenFrom(signer, collectionId, tokenId, fromAddressObj, toAddressObj, 1n);1374  }13751376  /**1377   * Recursively find the address that owns the token1378   * @param collectionId ID of collection1379   * @param tokenId ID of token1380   * @param blockHashAt1381   * @example getTokenTopmostOwner(10, 5);1382   * @returns address in CrossAccountId format, e.g. {Substrate: "5DyN4Y92vZCjv38fg..."}1383   */1384  async getTokenTopmostOwner(collectionId: number, tokenId: number, blockHashAt?: string): Promise<CrossAccountId | null> {1385    let owner;1386    if (typeof blockHashAt === 'undefined') {1387      owner = await this.helper.callRpc('api.rpc.unique.topmostTokenOwner', [collectionId, tokenId]);1388    } else {1389      owner = await this.helper.callRpc('api.rpc.unique.topmostTokenOwner', [collectionId, tokenId, blockHashAt]);1390    }13911392    if (owner === null) return null;13931394    return owner.toHuman();1395  }13961397  /**1398   * Get tokens nested in the provided token1399   * @param collectionId ID of collection1400   * @param tokenId ID of token1401   * @param blockHashAt optionally query the data at the block with this hash1402   * @example getTokenChildren(10, 5);1403   * @returns tokens whose depth of nesting is <= 51404   */1405  async getTokenChildren(collectionId: number, tokenId: number, blockHashAt?: string): Promise<IToken[]> {1406    let children;1407    if(typeof blockHashAt === 'undefined') {1408      children = await this.helper.callRpc('api.rpc.unique.tokenChildren', [collectionId, tokenId]);1409    } else {1410      children = await this.helper.callRpc('api.rpc.unique.tokenChildren', [collectionId, tokenId, blockHashAt]);1411    }14121413    return children.toJSON().map((x: any) => {1414      return {collectionId: x.collection, tokenId: x.token};1415    });1416  }14171418  /**1419   * Nest one token into another1420   * @param signer keyring of signer1421   * @param tokenObj token to be nested1422   * @param rootTokenObj token to be parent1423   * @example nestToken(aliceKeyring, {collectionId: 10, tokenId: 5}, {collectionId: 10, tokenId: 4});1424   * @returns ```true``` if extrinsic success, otherwise ```false```1425   */1426  async nestToken(signer: TSigner, tokenObj: IToken, rootTokenObj: IToken): Promise<boolean> {1427    const rootTokenAddress = this.helper.util.getTokenAccount(rootTokenObj);1428    const result = await this.transferToken(signer, tokenObj.collectionId, tokenObj.tokenId, rootTokenAddress);1429    if(!result) {1430      throw Error('Unable to nest token!');1431    }1432    return result;1433  }14341435  /**1436   * Remove token from nested state1437   * @param signer keyring of signer1438   * @param tokenObj token to unnest1439   * @param rootTokenObj parent of a token1440   * @param toAddressObj address of a new token owner1441   * @example unnestToken(aliceKeyring, {collectionId: 10, tokenId: 5}, {collectionId: 10, tokenId: 4}, {Substrate: "5DyN4Y92vZCjv38fg..."});1442   * @returns ```true``` if extrinsic success, otherwise ```false```1443   */1444  async unnestToken(signer: TSigner, tokenObj: IToken, rootTokenObj: IToken, toAddressObj: ICrossAccountId): Promise<boolean> {1445    const rootTokenAddress = this.helper.util.getTokenAccount(rootTokenObj);1446    const result = await this.transferTokenFrom(signer, tokenObj.collectionId, tokenObj.tokenId, rootTokenAddress, toAddressObj);1447    if(!result) {1448      throw Error('Unable to unnest token!');1449    }1450    return result;1451  }14521453  /**1454   * Mint new collection1455   * @param signer keyring of signer1456   * @param collectionOptions Collection options1457   * @example1458   * mintCollection(aliceKeyring, {1459   *   name: 'New',1460   *   description: 'New collection',1461   *   tokenPrefix: 'NEW',1462   * })1463   * @returns object of the created collection1464   */1465  async mintCollection(signer: TSigner, collectionOptions: ICollectionCreationOptions = {}): Promise<UniqueNFTCollection> {1466    return await super.mintCollection(signer, collectionOptions, 'NFT') as UniqueNFTCollection;1467  }14681469  /**1470   * Mint new token1471   * @param signer keyring of signer1472   * @param data token data1473   * @returns created token object1474   */1475  async mintToken(signer: TSigner, data: { collectionId: number; owner: ICrossAccountId | string; properties?: IProperty[]; }): Promise<UniqueNFToken> {1476    const creationResult = await this.helper.executeExtrinsic(1477      signer,1478      'api.tx.unique.createItem', [data.collectionId, (typeof data.owner === 'string') ? {Substrate: data.owner} : data.owner, {1479        nft: {1480          properties: data.properties,1481        },1482      }],1483      true,1484    );1485    const createdTokens = this.helper.util.extractTokensFromCreationResult(creationResult);1486    if (createdTokens.tokens.length > 1) throw Error('Minted multiple tokens');1487    if (createdTokens.tokens.length < 1) throw Error('No tokens minted');1488    return this.getTokenObject(data.collectionId, createdTokens.tokens[0].tokenId);1489  }14901491  /**1492   * Mint multiple NFT tokens1493   * @param signer keyring of signer1494   * @param collectionId ID of collection1495   * @param tokens array of tokens with owner and properties1496   * @example1497   * mintMultipleTokens(aliceKeyring, 10, [{1498   *     owner: {Substrate: "5DyN4Y92vZCjv38fg..."},1499   *     properties: [{key: "gender", value: "male"},{key: "age", value: "45"}],1500   *   },{1501   *     owner: {Ethereum: "0x9F0583DbB855d..."},1502   *     properties: [{key: "gender", value: "female"},{key: "age", value: "22"}],1503   * }]);1504   * @returns ```true``` if extrinsic success, otherwise ```false```1505   */1506  async mintMultipleTokens(signer: TSigner, collectionId: number, tokens: {owner: ICrossAccountId, properties?: IProperty[]}[]): Promise<UniqueNFToken[]> {1507    const creationResult = await this.helper.executeExtrinsic(1508      signer,1509      'api.tx.unique.createMultipleItemsEx', [collectionId, {NFT: tokens}],1510      true,1511    );1512    const collection = this.getCollectionObject(collectionId);1513    return this.helper.util.extractTokensFromCreationResult(creationResult).tokens.map((x: IToken) => collection.getTokenObject(x.tokenId));1514  }15151516  /**1517   * Mint multiple NFT tokens with one owner1518   * @param signer keyring of signer1519   * @param collectionId ID of collection1520   * @param owner tokens owner1521   * @param tokens array of tokens with owner and properties1522   * @example1523   * mintMultipleTokensWithOneOwner(aliceKeyring, 10, "5DyN4Y92vZCjv38fg...", [{1524   *   properties: [{1525   *   key: "gender",1526   *   value: "female",1527   *  },{1528   *   key: "age",1529   *   value: "33",1530   *  }],1531   * }]);1532   * @returns array of newly created tokens1533   */1534  async mintMultipleTokensWithOneOwner(signer: TSigner, collectionId: number, owner: ICrossAccountId, tokens: {properties?: IProperty[]}[]): Promise<UniqueNFToken[]> {1535    const rawTokens = [];1536    for (const token of tokens) {1537      const raw = {NFT: {properties: token.properties}};1538      rawTokens.push(raw);1539    }1540    const creationResult = await this.helper.executeExtrinsic(1541      signer,1542      'api.tx.unique.createMultipleItems', [collectionId, owner, rawTokens],1543      true,1544    );1545    const collection = this.getCollectionObject(collectionId);1546    return this.helper.util.extractTokensFromCreationResult(creationResult).tokens.map((x: IToken) => collection.getTokenObject(x.tokenId));1547  }15481549  /**1550   * Set, change, or remove approved address to transfer the ownership of the NFT.1551   *1552   * @param signer keyring of signer1553   * @param collectionId ID of collection1554   * @param tokenId ID of token1555   * @param toAddressObj address to approve1556   * @example approveToken(aliceKeyring, 10, 5, {Substrate: "5DyN4Y92vZCjv38fg..."})1557   * @returns ```true``` if extrinsic success, otherwise ```false```1558   */1559  async approveToken(signer: IKeyringPair, collectionId: number, tokenId: number, toAddressObj: ICrossAccountId) {1560    return super.approveToken(signer, collectionId, tokenId, toAddressObj, 1n);1561  }1562}156315641565class RFTGroup extends NFTnRFT {1566  /**1567   * Get collection object1568   * @param collectionId ID of collection1569   * @example getCollectionObject(2);1570   * @returns instance of UniqueRFTCollection1571   */1572  getCollectionObject(collectionId: number): UniqueRFTCollection {1573    return new UniqueRFTCollection(collectionId, this.helper);1574  }15751576  /**1577   * Get token object1578   * @param collectionId ID of collection1579   * @param tokenId ID of token1580   * @example getTokenObject(10, 5);1581   * @returns instance of UniqueNFTToken1582   */1583  getTokenObject(collectionId: number, tokenId: number): UniqueRFToken {1584    return new UniqueRFToken(tokenId, this.getCollectionObject(collectionId));1585  }15861587  /**1588   * Get top 10 token owners with the largest number of pieces1589   * @param collectionId ID of collection1590   * @param tokenId ID of token1591   * @example getTokenTop10Owners(10, 5);1592   * @returns array of top 10 owners1593   */1594  async getTokenTop10Owners(collectionId: number, tokenId: number): Promise<CrossAccountId[]> {1595    return (await this.helper.callRpc('api.rpc.unique.tokenOwners', [collectionId, tokenId])).toJSON().map(CrossAccountId.fromLowerCaseKeys);1596  }15971598  /**1599   * Get number of pieces owned by address1600   * @param collectionId ID of collection1601   * @param tokenId ID of token1602   * @param addressObj address token owner1603   * @example getTokenBalance(10, 5, {Substrate: "5DyN4Y92vZCjv38fg..."});1604   * @returns number of pieces ownerd by address1605   */1606  async getTokenBalance(collectionId: number, tokenId: number, addressObj: ICrossAccountId): Promise<bigint> {1607    return (await this.helper.callRpc('api.rpc.unique.balance', [collectionId, addressObj, tokenId])).toBigInt();1608  }16091610  /**1611   * Transfer pieces of token to another address1612   * @param signer keyring of signer1613   * @param collectionId ID of collection1614   * @param tokenId ID of token1615   * @param addressObj address of a new owner1616   * @param amount number of pieces to be transfered1617   * @example transferTokenFrom(aliceKeyring, 10, 5, {Substrate: "5DyN4Y92vZCjv38fg..."}, 2000n)1618   * @returns ```true``` if extrinsic success, otherwise ```false```1619   */1620  async transferToken(signer: TSigner, collectionId: number, tokenId: number, addressObj: ICrossAccountId, amount=1n): Promise<boolean> {1621    return await super.transferToken(signer, collectionId, tokenId, addressObj, amount);1622  }16231624  /**1625   * Change ownership of some pieces of RFT on behalf of the owner.1626   * @param signer keyring of signer1627   * @param collectionId ID of collection1628   * @param tokenId ID of token1629   * @param fromAddressObj address on behalf of which the token will be sent1630   * @param toAddressObj new token owner1631   * @param amount number of pieces to be transfered1632   * @example transferTokenFrom(aliceKeyring, 10, 5, {Substrate: "5DyN4Y92vZCjv38fg..."}, {Substrate: "5DfhbVfww7ThF8q6f3i..."}, 2000n)1633   * @returns ```true``` if extrinsic success, otherwise ```false```1634   */1635  async transferTokenFrom(signer: TSigner, collectionId: number, tokenId: number, fromAddressObj: ICrossAccountId, toAddressObj: ICrossAccountId, amount=1n): Promise<boolean> {1636    return await super.transferTokenFrom(signer, collectionId, tokenId, fromAddressObj, toAddressObj, amount);1637  }16381639  /**1640   * Mint new collection1641   * @param signer keyring of signer1642   * @param collectionOptions Collection options1643   * @example1644   * mintCollection(aliceKeyring, {1645   *   name: 'New',1646   *   description: 'New collection',1647   *   tokenPrefix: 'NEW',1648   * })1649   * @returns object of the created collection1650   */1651  async mintCollection(signer: TSigner, collectionOptions: ICollectionCreationOptions = {}): Promise<UniqueRFTCollection> {1652    return await super.mintCollection(signer, collectionOptions, 'RFT') as UniqueRFTCollection;1653  }16541655  /**1656   * Mint new token1657   * @param signer keyring of signer1658   * @param data token data1659   * @example mintToken(aliceKeyring, {collectionId: 10, owner: {Substrate: '5GHoZe9c73RYbVzq...'}, pieces: 10000n});1660   * @returns created token object1661   */1662  async mintToken(signer: TSigner, data: { collectionId: number; owner: ICrossAccountId | string; pieces: bigint; properties?: IProperty[]; }): Promise<UniqueRFToken> {1663    const creationResult = await this.helper.executeExtrinsic(1664      signer,1665      'api.tx.unique.createItem', [data.collectionId, (typeof data.owner === 'string') ? {Substrate: data.owner} : data.owner, {1666        refungible: {1667          pieces: data.pieces,1668          properties: data.properties,1669        },1670      }],1671      true,1672    );1673    const createdTokens = this.helper.util.extractTokensFromCreationResult(creationResult);1674    if (createdTokens.tokens.length > 1) throw Error('Minted multiple tokens');1675    if (createdTokens.tokens.length < 1) throw Error('No tokens minted');1676    return this.getTokenObject(data.collectionId, createdTokens.tokens[0].tokenId);1677  }16781679  async mintMultipleTokens(signer: TSigner, collectionId: number, tokens: {owner: ICrossAccountId, pieces: bigint, properties?: IProperty[]}[]): Promise<UniqueRFToken[]> {1680    throw Error('Not implemented');1681    const creationResult = await this.helper.executeExtrinsic(1682      signer,1683      'api.tx.unique.createMultipleItemsEx', [collectionId, {RefungibleMultipleOwners: tokens}],1684      true, // `Unable to mint RFT tokens for ${label}`,1685    );1686    const collection = this.getCollectionObject(collectionId);1687    return this.helper.util.extractTokensFromCreationResult(creationResult).tokens.map((x: IToken) => collection.getTokenObject(x.tokenId));1688  }16891690  /**1691   * Mint multiple RFT tokens with one owner1692   * @param signer keyring of signer1693   * @param collectionId ID of collection1694   * @param owner tokens owner1695   * @param tokens array of tokens with properties and pieces1696   * @example mintMultipleTokensWithOneOwner(aliceKeyring, 10, {Substrate: "5GHoZe9c73RYbVzq..."}, [{pieces: 100000n, properties: [{key: "gender", value: "male"}]}]);1697   * @returns array of newly created RFT tokens1698   */1699  async mintMultipleTokensWithOneOwner(signer: TSigner, collectionId: number, owner: ICrossAccountId, tokens: {pieces: bigint, properties?: IProperty[]}[]): Promise<UniqueRFToken[]> {1700    const rawTokens = [];1701    for (const token of tokens) {1702      const raw = {ReFungible: {pieces: token.pieces, properties: token.properties}};1703      rawTokens.push(raw);1704    }1705    const creationResult = await this.helper.executeExtrinsic(1706      signer,1707      'api.tx.unique.createMultipleItems', [collectionId, owner, rawTokens],1708      true,1709    );1710    const collection = this.getCollectionObject(collectionId);1711    return this.helper.util.extractTokensFromCreationResult(creationResult).tokens.map((x: IToken) => collection.getTokenObject(x.tokenId));1712  }17131714  /**1715   * Destroys a concrete instance of RFT.1716   * @param signer keyring of signer1717   * @param collectionId ID of collection1718   * @param tokenId ID of token1719   * @param amount number of pieces to be burnt1720   * @example burnToken(aliceKeyring, 10, 5);1721   * @returns ```true``` if the extrinsic is successful, otherwise ```false```1722   */1723  async burnToken(signer: IKeyringPair, collectionId: number, tokenId: number, amount=1n): Promise<boolean> {1724    return await super.burnToken(signer, collectionId, tokenId, amount);1725  }17261727  /**1728   * Destroys a concrete instance of RFT on behalf of the owner.1729   * @param signer keyring of signer1730   * @param collectionId ID of collection1731   * @param tokenId ID of token1732   * @param fromAddressObj address on behalf of which the token will be burnt1733   * @param amount number of pieces to be burnt1734   * @example burnTokenFrom(aliceKeyring, 10, 5, {Substrate: "5DyN4Y92vZCjv38fg..."}, 2n)1735   * @returns ```true``` if extrinsic success, otherwise ```false```1736   */1737  async burnTokenFrom(signer: IKeyringPair, collectionId: number, tokenId: number, fromAddressObj: ICrossAccountId, amount=1n): Promise<boolean> {1738    return await super.burnTokenFrom(signer, collectionId, tokenId, fromAddressObj, amount);1739  }17401741  /**1742   * Set, change, or remove approved address to transfer the ownership of the RFT.1743   *1744   * @param signer keyring of signer1745   * @param collectionId ID of collection1746   * @param tokenId ID of token1747   * @param toAddressObj address to approve1748   * @param amount number of pieces to be approved1749   * @example approveToken(aliceKeyring, 10, 5, {Substrate: "5GHoZe9c73RYbVzq..."}, "", 10000n);1750   * @returns true if the token success, otherwise false1751   */1752  async approveToken(signer: IKeyringPair, collectionId: number, tokenId: number, toAddressObj: ICrossAccountId, amount=1n) {1753    return super.approveToken(signer, collectionId, tokenId, toAddressObj, amount);1754  }17551756  /**1757   * Get total number of pieces1758   * @param collectionId ID of collection1759   * @param tokenId ID of token1760   * @example getTokenTotalPieces(10, 5);1761   * @returns number of pieces1762   */1763  async getTokenTotalPieces(collectionId: number, tokenId: number): Promise<bigint> {1764    return (await this.helper.callRpc('api.rpc.unique.totalPieces', [collectionId, tokenId])).unwrap().toBigInt();1765  }17661767  /**1768   * Change number of token pieces. Signer must be the owner of all token pieces.1769   * @param signer keyring of signer1770   * @param collectionId ID of collection1771   * @param tokenId ID of token1772   * @param amount new number of pieces1773   * @example repartitionToken(aliceKeyring, 10, 5, 12345n);1774   * @returns true if the repartion was success, otherwise false1775   */1776  async repartitionToken(signer: TSigner, collectionId: number, tokenId: number, amount: bigint): Promise<boolean> {1777    const currentAmount = await this.getTokenTotalPieces(collectionId, tokenId);1778    const repartitionResult = await this.helper.executeExtrinsic(1779      signer,1780      'api.tx.unique.repartition', [collectionId, tokenId, amount],1781      true,1782    );1783    if(currentAmount < amount) return this.helper.util.findCollectionInEvents(repartitionResult.result.events, collectionId, 'common', 'ItemCreated');1784    return this.helper.util.findCollectionInEvents(repartitionResult.result.events, collectionId, 'common', 'ItemDestroyed');1785  }1786}178717881789class FTGroup extends CollectionGroup {1790  /**1791   * Get collection object1792   * @param collectionId ID of collection1793   * @example getCollectionObject(2);1794   * @returns instance of UniqueFTCollection1795   */1796  getCollectionObject(collectionId: number): UniqueFTCollection {1797    return new UniqueFTCollection(collectionId, this.helper);1798  }17991800  /**1801   * Mint new fungible collection1802   * @param signer keyring of signer1803   * @param collectionOptions Collection options1804   * @param decimalPoints number of token decimals1805   * @example1806   * mintCollection(aliceKeyring, {1807   *   name: 'New',1808   *   description: 'New collection',1809   *   tokenPrefix: 'NEW',1810   * }, 18)1811   * @returns newly created fungible collection1812   */1813  async mintCollection(signer: TSigner, collectionOptions: ICollectionCreationOptions = {}, decimalPoints = 0): Promise<UniqueFTCollection> {1814    collectionOptions = JSON.parse(JSON.stringify(collectionOptions)) as ICollectionCreationOptions; // Clone object1815    if(collectionOptions.tokenPropertyPermissions) throw Error('Fungible collections has no tokenPropertyPermissions');1816    collectionOptions.mode = {fungible: decimalPoints};1817    for (const key of ['name', 'description', 'tokenPrefix']) {1818      if (typeof collectionOptions[key as 'name' | 'description' | 'tokenPrefix'] === 'string') collectionOptions[key as 'name' | 'description' | 'tokenPrefix'] = this.helper.util.str2vec(collectionOptions[key as 'name' | 'description' | 'tokenPrefix'] as string);1819    }1820    const creationResult = await this.helper.executeExtrinsic(1821      signer,1822      'api.tx.unique.createCollectionEx', [collectionOptions],1823      true,1824    );1825    return this.getCollectionObject(this.helper.util.extractCollectionIdFromCreationResult(creationResult));1826  }18271828  /**1829   * Mint tokens1830   * @param signer keyring of signer1831   * @param collectionId ID of collection1832   * @param owner address owner of new tokens1833   * @param amount amount of tokens to be meanted1834   * @example mintTokens(aliceKeyring, 10, {Substrate: "5GHoZe9c73RYbVzq"}, 1000n);1835   * @returns ```true``` if extrinsic success, otherwise ```false```1836   */1837  async mintTokens(signer: TSigner, collectionId: number, amount: bigint, owner: ICrossAccountId | string): Promise<boolean> {1838    const creationResult = await this.helper.executeExtrinsic(1839      signer,1840      'api.tx.unique.createItem', [collectionId, (typeof owner === 'string') ? {Substrate: owner} : owner, {1841        fungible: {1842          value: amount,1843        },1844      }],1845      true, // `Unable to mint fungible tokens for ${label}`,1846    );1847    return this.helper.util.findCollectionInEvents(creationResult.result.events, collectionId, 'common', 'ItemCreated');1848  }18491850  /**1851   * Mint multiple Fungible tokens with one owner1852   * @param signer keyring of signer1853   * @param collectionId ID of collection1854   * @param owner tokens owner1855   * @param tokens array of tokens with properties and pieces1856   * @returns ```true``` if extrinsic success, otherwise ```false```1857   */1858  async mintMultipleTokensWithOneOwner(signer: TSigner, collectionId: number, tokens: {value: bigint}[], owner: ICrossAccountId): Promise<boolean> {1859    const rawTokens = [];1860    for (const token of tokens) {1861      const raw = {Fungible: {Value: token.value}};1862      rawTokens.push(raw);1863    }1864    const creationResult = await this.helper.executeExtrinsic(1865      signer,1866      'api.tx.unique.createMultipleItems', [collectionId, owner, rawTokens],1867      true,1868    );1869    return this.helper.util.findCollectionInEvents(creationResult.result.events, collectionId, 'common', 'ItemCreated');1870  }18711872  /**1873   * Get the top 10 owners with the largest balance for the Fungible collection1874   * @param collectionId ID of collection1875   * @example getTop10Owners(10);1876   * @returns array of ```ICrossAccountId```1877   */1878  async getTop10Owners(collectionId: number): Promise<CrossAccountId[]> {1879    return (await this.helper.callRpc('api.rpc.unique.tokenOwners', [collectionId, 0])).toJSON().map(CrossAccountId.fromLowerCaseKeys);1880  }18811882  /**1883   * Get account balance1884   * @param collectionId ID of collection1885   * @param addressObj address of owner1886   * @example getBalance(10, {Substrate: "5GHoZe9c73RYbVzq..."})1887   * @returns amount of fungible tokens owned by address1888   */1889  async getBalance(collectionId: number, addressObj: ICrossAccountId): Promise<bigint> {1890    return (await this.helper.callRpc('api.rpc.unique.balance', [collectionId, addressObj, 0])).toBigInt();1891  }18921893  /**1894   * Transfer tokens to address1895   * @param signer keyring of signer1896   * @param collectionId ID of collection1897   * @param toAddressObj address recipient1898   * @param amount amount of tokens to be sent1899   * @example transfer(aliceKeyring, 10, {Substrate: "5GHoZe9c73RYbVzq..."}, 1000n);1900   * @returns ```true``` if extrinsic success, otherwise ```false```1901   */1902  async transfer(signer: TSigner, collectionId: number, toAddressObj: ICrossAccountId, amount=1n) {1903    return await super.transferToken(signer, collectionId, 0, toAddressObj, amount);1904  }19051906  /**1907   * Transfer some tokens on behalf of the owner.1908   * @param signer keyring of signer1909   * @param collectionId ID of collection1910   * @param fromAddressObj address on behalf of which tokens will be sent1911   * @param toAddressObj address where token to be sent1912   * @param amount number of tokens to be sent1913   * @example transferFrom(aliceKeyring, 10, {Substrate: "5GHoZe9c73RYbVzq..."}, {Substrate: "5DfhbVfww7ThF8q6f3ij..."}, 10000n);1914   * @returns ```true``` if extrinsic success, otherwise ```false```1915   */1916  async transferFrom(signer: TSigner, collectionId: number, fromAddressObj: ICrossAccountId, toAddressObj: ICrossAccountId, amount=1n) {1917    return await super.transferTokenFrom(signer, collectionId, 0, fromAddressObj, toAddressObj, amount);1918  }19191920  /**1921   * Destroy some amount of tokens1922   * @param signer keyring of signer1923   * @param collectionId ID of collection1924   * @param amount amount of tokens to be destroyed1925   * @example burnTokens(aliceKeyring, 10, 1000n);1926   * @returns ```true``` if extrinsic success, otherwise ```false```1927   */1928  async burnTokens(signer: IKeyringPair, collectionId: number, amount=1n): Promise<boolean> {1929    return await super.burnToken(signer, collectionId, 0, amount);1930  }19311932  /**1933   * Burn some tokens on behalf of the owner.1934   * @param signer keyring of signer1935   * @param collectionId ID of collection1936   * @param fromAddressObj address on behalf of which tokens will be burnt1937   * @param amount amount of tokens to be burnt1938   * @example burnTokensFrom(aliceKeyring, 10, {Substrate: "5GHoZe9c73RYbVzq..."}, 1000n);1939   * @returns ```true``` if extrinsic success, otherwise ```false```1940   */1941  async burnTokensFrom(signer: IKeyringPair, collectionId: number, fromAddressObj: ICrossAccountId, amount=1n): Promise<boolean> {1942    return await super.burnTokenFrom(signer, collectionId, 0, fromAddressObj, amount);1943  }19441945  /**1946   * Get total collection supply1947   * @param collectionId1948   * @returns1949   */1950  async getTotalPieces(collectionId: number): Promise<bigint> {1951    return (await this.helper.callRpc('api.rpc.unique.totalPieces', [collectionId, 0])).unwrap().toBigInt();1952  }19531954  /**1955   * Set, change, or remove approved address to transfer tokens.1956   *1957   * @param signer keyring of signer1958   * @param collectionId ID of collection1959   * @param toAddressObj address to be approved1960   * @param amount amount of tokens to be approved1961   * @example approveTokens(aliceKeyring, 10, {Substrate: "5GHoZe9c73RYbVzq..."}, 1000n)1962   * @returns ```true``` if extrinsic success, otherwise ```false```1963   */1964  async approveTokens(signer: IKeyringPair, collectionId: number, toAddressObj: ICrossAccountId, amount=1n) {1965    return super.approveToken(signer, collectionId, 0, toAddressObj, amount);1966  }19671968  /**1969   * Get amount of fungible tokens approved to transfer1970   * @param collectionId ID of collection1971   * @param fromAddressObj owner of tokens1972   * @param toAddressObj the address approved for the transfer of tokens on behalf of the owner1973   * @returns number of tokens approved for the transfer1974   */1975  async getApprovedTokens(collectionId: number, fromAddressObj: ICrossAccountId, toAddressObj: ICrossAccountId) {1976    return super.getTokenApprovedPieces(collectionId, 0, toAddressObj, fromAddressObj);1977  }1978}197919801981class ChainGroup extends HelperGroup {1982  /**1983   * Get system properties of a chain1984   * @example getChainProperties();1985   * @returns ss58Format, token decimals, and token symbol1986   */1987  getChainProperties(): IChainProperties {1988    const properties = (this.helper.api as any).registry.getChainProperties().toJSON();1989    return {1990      ss58Format: properties.ss58Format.toJSON(),1991      tokenDecimals: properties.tokenDecimals.toJSON(),1992      tokenSymbol: properties.tokenSymbol.toJSON(),1993    };1994  }19951996  /**1997   * Get chain header1998   * @example getLatestBlockNumber();1999   * @returns the number of the last block2000   */2001  async getLatestBlockNumber(): Promise<number> {2002    return (await this.helper.callRpc('api.rpc.chain.getHeader')).number.toNumber();2003  }20042005  /**2006   * Get block hash by block number2007   * @param blockNumber number of block2008   * @example getBlockHashByNumber(12345);2009   * @returns hash of a block2010   */2011  async getBlockHashByNumber(blockNumber: number): Promise<string | null> {2012    const blockHash = (await this.helper.callRpc('api.rpc.chain.getBlockHash', [blockNumber])).toJSON();2013    if(blockHash === '0x0000000000000000000000000000000000000000000000000000000000000000') return null;2014    return blockHash;2015  }20162017  // TODO add docs2018  async getBlock(blockHashOrNumber: string | number): Promise<IBlock | null> {2019    const blockHash = typeof blockHashOrNumber === 'string' ? blockHashOrNumber : await this.getBlockHashByNumber(blockHashOrNumber);2020    if (!blockHash) return null;2021    return (await this.helper.callRpc('api.rpc.chain.getBlock', [blockHash])).toHuman().block;2022  }20232024  /**2025   * Get account nonce2026   * @param address substrate address2027   * @example getNonce("5GrwvaEF5zXb26Fz...");2028   * @returns number, account's nonce2029   */2030  async getNonce(address: TSubstrateAccount): Promise<number> {2031    return (await (this.helper.api as any).query.system.account(address)).nonce.toNumber();2032  }2033}203420352036class BalanceGroup extends HelperGroup {2037  getCollectionCreationPrice(): bigint {2038    return 2n * this.helper.balance.getOneTokenNominal();2039  }2040  /**2041   * Representation of the native token in the smallest unit - one OPAL (OPL), QUARTZ (QTZ), or UNIQUE (UNQ).2042   * @example getOneTokenNominal()2043   * @returns ```BigInt``` representation of the native token in the smallest unit, e.g. ```1_000_000_000_000_000_000n``` for QTZ.2044   */2045  getOneTokenNominal(): bigint {2046    const chainProperties = this.helper.chain.getChainProperties();2047    return 10n ** BigInt((chainProperties.tokenDecimals || [18])[0]);2048  }20492050  /**2051   * Get substrate address balance2052   * @param address substrate address2053   * @example getSubstrate("5GrwvaEF5zXb26Fz...")2054   * @returns amount of tokens on address2055   */2056  async getSubstrate(address: TSubstrateAccount): Promise<bigint> {2057    return (await this.helper.callRpc('api.query.system.account', [address])).data.free.toBigInt();2058  }20592060  /**2061   * Get full substrate balance including free, miscFrozen, feeFrozen, and reserved2062   * @param address substrate address2063   * @returns2064   */2065  async getSubstrateFull(address: TSubstrateAccount): Promise<ISubstrateBalance> {2066    const accountInfo = (await this.helper.callRpc('api.query.system.account', [address])).data;2067    return {free: accountInfo.free.toBigInt(), miscFrozen: accountInfo.miscFrozen.toBigInt(), feeFrozen: accountInfo.feeFrozen.toBigInt(), reserved: accountInfo.reserved.toBigInt()};2068  }20692070  /**2071   * Get ethereum address balance2072   * @param address ethereum address2073   * @example getEthereum("0x9F0583DbB855d...")2074   * @returns amount of tokens on address2075   */2076  async getEthereum(address: TEthereumAccount): Promise<bigint> {2077    return (await this.helper.callRpc('api.rpc.eth.getBalance', [address])).toBigInt();2078  }20792080  /**2081   * Transfer tokens to substrate address2082   * @param signer keyring of signer2083   * @param address substrate address of a recipient2084   * @param amount amount of tokens to be transfered2085   * @example transferToSubstrate(aliceKeyring, "5GrwvaEF5zXb26Fz...", 100_000_000_000n);2086   * @returns ```true``` if extrinsic success, otherwise ```false```2087   */2088  async transferToSubstrate(signer: TSigner, address: TSubstrateAccount, amount: bigint | string): Promise<boolean> {2089    const result = await this.helper.executeExtrinsic(signer, 'api.tx.balances.transfer', [address, amount], true/*, `Unable to transfer balance from ${this.helper.getSignerAddress(signer)} to ${address}`*/);20902091    let transfer = {from: null, to: null, amount: 0n} as any;2092    result.result.events.forEach(({event: {data, method, section}}) => {2093      if ((section === 'balances') && (method === 'Transfer')) {2094        transfer = {2095          from: this.helper.address.normalizeSubstrate(data[0]),2096          to: this.helper.address.normalizeSubstrate(data[1]),2097          amount: BigInt(data[2]),2098        };2099      }2100    });2101    const isSuccess = this.helper.address.normalizeSubstrate(typeof signer === 'string' ? signer : signer.address) === transfer.from 2102      && this.helper.address.normalizeSubstrate(address) === transfer.to 2103      && BigInt(amount) === transfer.amount;2104    return isSuccess;2105  }2106}210721082109class AddressGroup extends HelperGroup {2110  /**2111   * Normalizes the address to the specified ss58 format, by default ```42```.2112   * @param address substrate address2113   * @param ss58Format format for address conversion, by default ```42```2114   * @example normalizeSubstrate("unjKJQJrRd238pkUZZvzDQrfKuM39zBSnQ5zjAGAGcdRhaJTx") // returns 5GrwvaEF5zXb26Fz9rcQpDWS57CtERHpNehXCPcNoHGKutQY2115   * @returns substrate address converted to normalized (i.e., starting with 5) or specified explicitly representation2116   */2117  normalizeSubstrate(address: TSubstrateAccount, ss58Format = 42): TSubstrateAccount {2118    return CrossAccountId.normalizeSubstrateAddress(address, ss58Format);2119  }21202121  /**2122   * Get address in the connected chain format2123   * @param address substrate address2124   * @example normalizeSubstrateToChainFormat("5GrwvaEF5zXb26Fz...") // returns unjKJQJrRd238pkUZZ... for Unique Network2125   * @returns address in chain format2126   */2127  normalizeSubstrateToChainFormat(address: TSubstrateAccount): TSubstrateAccount {2128    return this.normalizeSubstrate(address, this.helper.chain.getChainProperties().ss58Format);2129  }21302131  /**2132   * Get substrate mirror of an ethereum address2133   * @param ethAddress ethereum address2134   * @param toChainFormat false for normalized account2135   * @example ethToSubstrate('0x9F0583DbB855d...')2136   * @returns substrate mirror of a provided ethereum address2137   */2138  ethToSubstrate(ethAddress: TEthereumAccount, toChainFormat=false): TSubstrateAccount {2139    return CrossAccountId.translateEthToSub(ethAddress, toChainFormat ? this.helper.chain.getChainProperties().ss58Format : undefined);2140  }21412142  /**2143   * Get ethereum mirror of a substrate address2144   * @param subAddress substrate account2145   * @example substrateToEth("5DnSF6RRjwteE3BrC...")2146   * @returns ethereum mirror of a provided substrate address2147   */2148  substrateToEth(subAddress: TSubstrateAccount): TEthereumAccount {2149    return CrossAccountId.translateSubToEth(subAddress);2150  }2151}21522153class StakingGroup extends HelperGroup {2154  /**2155   * Stake tokens for App Promotion2156   * @param signer keyring of signer2157   * @param amountToStake amount of tokens to stake2158   * @param label extra label for log2159   * @returns2160   */2161  async stake(signer: TSigner, amountToStake: bigint, label?: string): Promise<boolean> {2162    if(typeof label === 'undefined') label = `${signer.address} amount: ${amountToStake}`;2163    const stakeResult = await this.helper.executeExtrinsic(2164      signer, 'api.tx.appPromotion.stake',2165      [amountToStake], true,2166    );2167    // TODO extract info from stakeResult2168    return true;2169  }21702171  /**2172   * Unstake tokens for App Promotion2173   * @param signer keyring of signer2174   * @param amountToUnstake amount of tokens to unstake2175   * @param label extra label for log2176   * @returns block number where balances will be unlocked2177   */2178  async unstake(signer: TSigner, label?: string): Promise<number> {2179    if(typeof label === 'undefined') label = `${signer.address}`;2180    const unstakeResult = await this.helper.executeExtrinsic(2181      signer, 'api.tx.appPromotion.unstake',2182      [], true,2183    );2184    // TODO extract block number fron events2185    return 1;2186  }21872188  /**2189   * Get total staked amount for address2190   * @param address substrate or ethereum address2191   * @returns total staked amount2192   */2193  async getTotalStaked(address?: ICrossAccountId): Promise<bigint> {2194    if (address) return (await this.helper.callRpc('api.rpc.appPromotion.totalStaked', [address])).toBigInt();2195    return (await this.helper.callRpc('api.rpc.appPromotion.totalStaked')).toBigInt();2196  }21972198  /**2199   * Get total staked per block2200   * @param address substrate or ethereum address2201   * @returns array of stakes. `block` – the number of the block in which the stake was made. `amount` - the number of tokens staked in the block2202   */2203  async getTotalStakedPerBlock(address: ICrossAccountId): Promise<IStakingInfo[]> {2204    const rawTotalStakerdPerBlock = await this.helper.callRpc('api.rpc.appPromotion.totalStakedPerBlock', [address]);2205    return rawTotalStakerdPerBlock.map(([block, amount]: any[]) => {2206      return { 2207        block: block.toBigInt(),2208        amount: amount.toBigInt(),2209      };2210    });2211  }22122213  /**2214   * Get total pending unstake amount for address2215   * @param address substrate or ethereum address2216   * @returns total pending unstake amount2217   */2218  async getPendingUnstake(address: ICrossAccountId): Promise<bigint> {2219    return (await this.helper.callRpc('api.rpc.appPromotion.pendingUnstake', [address])).toBigInt();2220  }22212222  /**2223   * Get pending unstake amount per block for address2224   * @param address substrate or ethereum address2225   * @returns array of pending stakes. `block` – the number of the block in which the unstake was made. `amount` - the number of tokens unstaked in the block2226   */2227  async getPendingUnstakePerBlock(address: ICrossAccountId): Promise<IStakingInfo[]> {2228    const rawUnstakedPerBlock = await this.helper.callRpc('api.rpc.appPromotion.pendingUnstakePerBlock', [address]);2229    const result = rawUnstakedPerBlock.map(([block, amount]: any[]) => {2230      return {2231        block: block.toBigInt(),2232        amount: amount.toBigInt(),2233      };2234    });2235    return result;2236  }2237}22382239export class UniqueHelper extends ChainHelperBase {2240  chain: ChainGroup;2241  balance: BalanceGroup;2242  address: AddressGroup;2243  collection: CollectionGroup;2244  nft: NFTGroup;2245  rft: RFTGroup;2246  ft: FTGroup;2247  staking: StakingGroup;22482249  constructor(logger?: ILogger) {2250    super(logger);2251    this.chain = new ChainGroup(this);2252    this.balance = new BalanceGroup(this);2253    this.address = new AddressGroup(this);2254    this.collection = new CollectionGroup(this);2255    this.nft = new NFTGroup(this);2256    this.rft = new RFTGroup(this);2257    this.ft = new FTGroup(this);2258    this.staking = new StakingGroup(this);2259  }2260}226122622263export class UniqueBaseCollection {2264  helper: UniqueHelper;2265  collectionId: number;22662267  constructor(collectionId: number, uniqueHelper: UniqueHelper) {2268    this.collectionId = collectionId;2269    this.helper = uniqueHelper;2270  }22712272  async getData() {2273    return await this.helper.collection.getData(this.collectionId);2274  }22752276  async getLastTokenId() {2277    return await this.helper.collection.getLastTokenId(this.collectionId);2278  }22792280  async doesTokenExist(tokenId: number) {2281    return await this.helper.collection.doesTokenExist(this.collectionId, tokenId);2282  }22832284  async getAdmins() {2285    return await this.helper.collection.getAdmins(this.collectionId);2286  }22872288  async getAllowList() {2289    return await this.helper.collection.getAllowList(this.collectionId);2290  }22912292  async getEffectiveLimits() {2293    return await this.helper.collection.getEffectiveLimits(this.collectionId);2294  }22952296  async getProperties(propertyKeys?: string[] | null) {2297    return await this.helper.collection.getProperties(this.collectionId, propertyKeys);2298  }22992300  async getTokenNextSponsored(tokenId: number, addressObj: ICrossAccountId) {2301    return await this.helper.collection.getTokenNextSponsored(this.collectionId, tokenId, addressObj);2302  }23032304  async setSponsor(signer: TSigner, sponsorAddress: TSubstrateAccount) {2305    return await this.helper.collection.setSponsor(signer, this.collectionId, sponsorAddress);2306  }23072308  async confirmSponsorship(signer: TSigner) {2309    return await this.helper.collection.confirmSponsorship(signer, this.collectionId);2310  }23112312  async removeSponsor(signer: TSigner) {2313    return await this.helper.collection.removeSponsor(signer, this.collectionId);2314  }23152316  async setLimits(signer: TSigner, limits: ICollectionLimits) {2317    return await this.helper.collection.setLimits(signer, this.collectionId, limits);2318  }23192320  async changeOwner(signer: TSigner, ownerAddress: TSubstrateAccount) {2321    return await this.helper.collection.changeOwner(signer, this.collectionId, ownerAddress);2322  }23232324  async addAdmin(signer: TSigner, adminAddressObj: ICrossAccountId) {2325    return await this.helper.collection.addAdmin(signer, this.collectionId, adminAddressObj);2326  }23272328  async addToAllowList(signer: TSigner, addressObj: ICrossAccountId) {2329    return await this.helper.collection.addToAllowList(signer, this.collectionId, addressObj);2330  }23312332  async removeFromAllowList(signer: TSigner, addressObj: ICrossAccountId) {2333    return await this.helper.collection.removeFromAllowList(signer, this.collectionId, addressObj);2334  }23352336  async removeAdmin(signer: TSigner, adminAddressObj: ICrossAccountId) {2337    return await this.helper.collection.removeAdmin(signer, this.collectionId, adminAddressObj);2338  }23392340  async setProperties(signer: TSigner, properties: IProperty[]) {2341    return await this.helper.collection.setProperties(signer, this.collectionId, properties);2342  }23432344  async deleteProperties(signer: TSigner, propertyKeys: string[]) {2345    return await this.helper.collection.deleteProperties(signer, this.collectionId, propertyKeys);2346  }23472348  async setPermissions(signer: TSigner, permissions: ICollectionPermissions) {2349    return await this.helper.collection.setPermissions(signer, this.collectionId, permissions);2350  }23512352  async enableNesting(signer: TSigner, permissions: INestingPermissions) {2353    return await this.helper.collection.enableNesting(signer, this.collectionId, permissions);2354  }23552356  async disableNesting(signer: TSigner) {2357    return await this.helper.collection.disableNesting(signer, this.collectionId);2358  }23592360  async burn(signer: TSigner) {2361    return await this.helper.collection.burn(signer, this.collectionId);2362  }2363}236423652366export class UniqueNFTCollection extends UniqueBaseCollection {2367  getTokenObject(tokenId: number) {2368    return new UniqueNFToken(tokenId, this);2369  }23702371  async getTokensByAddress(addressObj: ICrossAccountId) {2372    return await this.helper.nft.getTokensByAddress(this.collectionId, addressObj);2373  }23742375  async getToken(tokenId: number, blockHashAt?: string) {2376    return await this.helper.nft.getToken(this.collectionId, tokenId, [], blockHashAt);2377  }23782379  async getTokenOwner(tokenId: number, blockHashAt?: string) {2380    return await this.helper.nft.getTokenOwner(this.collectionId, tokenId, blockHashAt);2381  }23822383  async getTokenTopmostOwner(tokenId: number, blockHashAt?: string) {2384    return await this.helper.nft.getTokenTopmostOwner(this.collectionId, tokenId, blockHashAt);2385  }23862387  async getTokenChildren(tokenId: number, blockHashAt?: string) {2388    return await this.helper.nft.getTokenChildren(this.collectionId, tokenId, blockHashAt);2389  }23902391  async getPropertyPermissions(propertyKeys: string[] | null = null) {2392    return await this.helper.nft.getPropertyPermissions(this.collectionId, propertyKeys);2393  }23942395  async getTokenProperties(tokenId: number, propertyKeys?: string[] | null) {2396    return await this.helper.nft.getTokenProperties(this.collectionId, tokenId, propertyKeys);2397  }23982399  async transferToken(signer: TSigner, tokenId: number, addressObj: ICrossAccountId) {2400    return await this.helper.nft.transferToken(signer, this.collectionId, tokenId, addressObj);2401  }24022403  async transferTokenFrom(signer: TSigner, tokenId: number, fromAddressObj: ICrossAccountId, toAddressObj: ICrossAccountId) {2404    return await this.helper.nft.transferTokenFrom(signer, this.collectionId, tokenId, fromAddressObj, toAddressObj);2405  }24062407  async approveToken(signer: TSigner, tokenId: number, toAddressObj: ICrossAccountId) {2408    return await this.helper.nft.approveToken(signer, this.collectionId, tokenId, toAddressObj);2409  }24102411  async isTokenApproved(tokenId: number, toAddressObj: ICrossAccountId) {2412    return await this.helper.nft.isTokenApproved(this.collectionId, tokenId, toAddressObj);2413  }24142415  async mintToken(signer: TSigner, owner: ICrossAccountId = {Substrate: signer.address}, properties?: IProperty[]) {2416    return await this.helper.nft.mintToken(signer, {collectionId: this.collectionId, owner, properties});2417  }24182419  async mintMultipleTokens(signer: TSigner, tokens: {owner: ICrossAccountId, properties?: IProperty[]}[]) {2420    return await this.helper.nft.mintMultipleTokens(signer, this.collectionId, tokens);2421  }24222423  async burnToken(signer: TSigner, tokenId: number) {2424    return await this.helper.nft.burnToken(signer, this.collectionId, tokenId);2425  }24262427  async burnTokenFrom(signer: TSigner, tokenId: number, fromAddressObj: ICrossAccountId) {2428    return await this.helper.nft.burnTokenFrom(signer, this.collectionId, tokenId, fromAddressObj);2429  }24302431  async setTokenProperties(signer: TSigner, tokenId: number, properties: IProperty[]) {2432    return await this.helper.nft.setTokenProperties(signer, this.collectionId, tokenId, properties);2433  }24342435  async deleteTokenProperties(signer: TSigner, tokenId: number, propertyKeys: string[]) {2436    return await this.helper.nft.deleteTokenProperties(signer, this.collectionId, tokenId, propertyKeys);2437  }24382439  async setTokenPropertyPermissions(signer: TSigner, permissions: ITokenPropertyPermission[]) {2440    return await this.helper.nft.setTokenPropertyPermissions(signer, this.collectionId, permissions);2441  }24422443  async nestToken(signer: TSigner, tokenId: number, toTokenObj: IToken) {2444    return await this.helper.nft.nestToken(signer, {collectionId: this.collectionId, tokenId}, toTokenObj);2445  }24462447  async unnestToken(signer: TSigner, tokenId: number, fromTokenObj: IToken, toAddressObj: ICrossAccountId) {2448    return await this.helper.nft.unnestToken(signer, {collectionId: this.collectionId, tokenId}, fromTokenObj, toAddressObj);2449  }2450}245124522453export class UniqueRFTCollection extends UniqueBaseCollection {2454  getTokenObject(tokenId: number) {2455    return new UniqueRFToken(tokenId, this);2456  }24572458  async getToken(tokenId: number, blockHashAt?: string) {2459    return await this.helper.rft.getToken(this.collectionId, tokenId, [], blockHashAt);2460  }24612462  async getTokensByAddress(addressObj: ICrossAccountId) {2463    return await this.helper.rft.getTokensByAddress(this.collectionId, addressObj);2464  }24652466  async getTop10TokenOwners(tokenId: number) {2467    return await this.helper.rft.getTokenTop10Owners(this.collectionId, tokenId);2468  }24692470  async getTokenBalance(tokenId: number, addressObj: ICrossAccountId) {2471    return await this.helper.rft.getTokenBalance(this.collectionId, tokenId, addressObj);2472  }24732474  async getTokenTotalPieces(tokenId: number) {2475    return await this.helper.rft.getTokenTotalPieces(this.collectionId, tokenId);2476  }24772478  async getTokenApprovedPieces(tokenId: number, fromAddressObj: ICrossAccountId, toAddressObj: ICrossAccountId) {2479    return await this.helper.rft.getTokenApprovedPieces(this.collectionId, tokenId, toAddressObj, fromAddressObj);2480  }24812482  async getPropertyPermissions(propertyKeys: string[] | null = null) {2483    return await this.helper.rft.getPropertyPermissions(this.collectionId, propertyKeys);2484  }24852486  async getTokenProperties(tokenId: number, propertyKeys?: string[] | null) {2487    return await this.helper.rft.getTokenProperties(this.collectionId, tokenId, propertyKeys);2488  }24892490  async transferToken(signer: TSigner, tokenId: number, addressObj: ICrossAccountId, amount=1n) {2491    return await this.helper.rft.transferToken(signer, this.collectionId, tokenId, addressObj, amount);2492  }24932494  async transferTokenFrom(signer: TSigner, tokenId: number, fromAddressObj: ICrossAccountId, toAddressObj: ICrossAccountId, amount=1n) {2495    return await this.helper.rft.transferTokenFrom(signer, this.collectionId, tokenId, fromAddressObj, toAddressObj, amount);2496  }24972498  async approveToken(signer: TSigner, tokenId: number, toAddressObj: ICrossAccountId, amount=1n) {2499    return await this.helper.rft.approveToken(signer, this.collectionId, tokenId, toAddressObj, amount);2500  }25012502  async repartitionToken(signer: TSigner, tokenId: number, amount: bigint) {2503    return await this.helper.rft.repartitionToken(signer, this.collectionId, tokenId, amount);2504  }25052506  async mintToken(signer: TSigner, pieces=1n, owner: ICrossAccountId = {Substrate: signer.address}, properties?: IProperty[]) {2507    return await this.helper.rft.mintToken(signer, {collectionId: this.collectionId, owner, pieces, properties});2508  }25092510  async mintMultipleTokens(signer: TSigner, tokens: {pieces: bigint, owner: ICrossAccountId, properties?: IProperty[]}[]) {2511    return await this.helper.rft.mintMultipleTokens(signer, this.collectionId, tokens);2512  }25132514  async burnToken(signer: TSigner, tokenId: number, amount=1n) {2515    return await this.helper.rft.burnToken(signer, this.collectionId, tokenId, amount);2516  }25172518  async burnTokenFrom(signer: TSigner, tokenId: number, fromAddressObj: ICrossAccountId,  amount=1n) {2519    return await this.helper.rft.burnTokenFrom(signer, this.collectionId, tokenId, fromAddressObj, amount);2520  }25212522  async setTokenProperties(signer: TSigner, tokenId: number, properties: IProperty[]) {2523    return await this.helper.rft.setTokenProperties(signer, this.collectionId, tokenId, properties);2524  }25252526  async deleteTokenProperties(signer: TSigner, tokenId: number, propertyKeys: string[]) {2527    return await this.helper.rft.deleteTokenProperties(signer, this.collectionId, tokenId, propertyKeys);2528  }25292530  async setTokenPropertyPermissions(signer: TSigner, permissions: ITokenPropertyPermission[]) {2531    return await this.helper.rft.setTokenPropertyPermissions(signer, this.collectionId, permissions);2532  }2533}253425352536export class UniqueFTCollection extends UniqueBaseCollection {2537  async getBalance(addressObj: ICrossAccountId) {2538    return await this.helper.ft.getBalance(this.collectionId, addressObj);2539  }25402541  async getTotalPieces() {2542    return await this.helper.ft.getTotalPieces(this.collectionId);2543  }25442545  async getApprovedTokens(fromAddressObj: ICrossAccountId, toAddressObj: ICrossAccountId) {2546    return await this.helper.ft.getApprovedTokens(this.collectionId, fromAddressObj, toAddressObj);2547  }25482549  async getTop10Owners() {2550    return await this.helper.ft.getTop10Owners(this.collectionId);2551  }25522553  async mint(signer: TSigner, amount=1n, owner: ICrossAccountId = {Substrate: signer.address}) {2554    return await this.helper.ft.mintTokens(signer, this.collectionId, amount, owner);2555  }25562557  async mintWithOneOwner(signer: TSigner, tokens: {value: bigint}[], owner: ICrossAccountId = {Substrate: signer.address}) {2558    return await this.helper.ft.mintMultipleTokensWithOneOwner(signer, this.collectionId, tokens, owner);2559  }25602561  async transfer(signer: TSigner, toAddressObj: ICrossAccountId, amount=1n) {2562    return await this.helper.ft.transfer(signer, this.collectionId, toAddressObj, amount);2563  }25642565  async transferFrom(signer: TSigner, fromAddressObj: ICrossAccountId, toAddressObj: ICrossAccountId, amount=1n) {2566    return await this.helper.ft.transferFrom(signer, this.collectionId, fromAddressObj, toAddressObj, amount);2567  }25682569  async burnTokens(signer: TSigner, amount=1n) {2570    return await this.helper.ft.burnTokens(signer, this.collectionId, amount);2571  }25722573  async burnTokensFrom(signer: TSigner, fromAddressObj: ICrossAccountId, amount=1n) {2574    return await this.helper.ft.burnTokensFrom(signer, this.collectionId, fromAddressObj, amount);2575  }25762577  async approveTokens(signer: TSigner, toAddressObj: ICrossAccountId, amount=1n) {2578    return await this.helper.ft.approveTokens(signer, this.collectionId, toAddressObj, amount);2579  }2580}258125822583export class UniqueBaseToken {2584  collection: UniqueNFTCollection | UniqueRFTCollection;2585  collectionId: number;2586  tokenId: number;25872588  constructor(tokenId: number, collection: UniqueNFTCollection | UniqueRFTCollection) {2589    this.collection = collection;2590    this.collectionId = collection.collectionId;2591    this.tokenId = tokenId;2592  }25932594  async getNextSponsored(addressObj: ICrossAccountId) {2595    return await this.collection.getTokenNextSponsored(this.tokenId, addressObj);2596  }25972598  async getProperties(propertyKeys?: string[] | null) {2599    return await this.collection.getTokenProperties(this.tokenId, propertyKeys);2600  }26012602  async setProperties(signer: TSigner, properties: IProperty[]) {2603    return await this.collection.setTokenProperties(signer, this.tokenId, properties);2604  }26052606  async deleteProperties(signer: TSigner, propertyKeys: string[]) {2607    return await this.collection.deleteTokenProperties(signer, this.tokenId, propertyKeys);2608  }26092610  async doesExist() {2611    return await this.collection.doesTokenExist(this.tokenId);2612  }26132614  nestingAccount() {2615    return this.collection.helper.util.getTokenAccount(this);2616  }2617}261826192620export class UniqueNFToken extends UniqueBaseToken {2621  collection: UniqueNFTCollection;26222623  constructor(tokenId: number, collection: UniqueNFTCollection) {2624    super(tokenId, collection);2625    this.collection = collection;2626  }26272628  async getData(blockHashAt?: string) {2629    return await this.collection.getToken(this.tokenId, blockHashAt);2630  }26312632  async getOwner(blockHashAt?: string) {2633    return await this.collection.getTokenOwner(this.tokenId, blockHashAt);2634  }26352636  async getTopmostOwner(blockHashAt?: string) {2637    return await this.collection.getTokenTopmostOwner(this.tokenId, blockHashAt);2638  }26392640  async getChildren(blockHashAt?: string) {2641    return await this.collection.getTokenChildren(this.tokenId, blockHashAt);2642  }26432644  async nest(signer: TSigner, toTokenObj: IToken) {2645    return await this.collection.nestToken(signer, this.tokenId, toTokenObj);2646  }26472648  async unnest(signer: TSigner, fromTokenObj: IToken, toAddressObj: ICrossAccountId) {2649    return await this.collection.unnestToken(signer, this.tokenId, fromTokenObj, toAddressObj);2650  }26512652  async transfer(signer: TSigner, addressObj: ICrossAccountId) {2653    return await this.collection.transferToken(signer, this.tokenId, addressObj);2654  }26552656  async transferFrom(signer: TSigner, fromAddressObj: ICrossAccountId, toAddressObj: ICrossAccountId) {2657    return await this.collection.transferTokenFrom(signer, this.tokenId, fromAddressObj, toAddressObj);2658  }26592660  async approve(signer: TSigner, toAddressObj: ICrossAccountId) {2661    return await this.collection.approveToken(signer, this.tokenId, toAddressObj);2662  }26632664  async isApproved(toAddressObj: ICrossAccountId) {2665    return await this.collection.isTokenApproved(this.tokenId, toAddressObj);2666  }26672668  async burn(signer: TSigner) {2669    return await this.collection.burnToken(signer, this.tokenId);2670  }26712672  async burnFrom(signer: TSigner, fromAddressObj: ICrossAccountId) {2673    return await this.collection.burnTokenFrom(signer, this.tokenId, fromAddressObj);2674  }2675}26762677export class UniqueRFToken extends UniqueBaseToken {2678  collection: UniqueRFTCollection;26792680  constructor(tokenId: number, collection: UniqueRFTCollection) {2681    super(tokenId, collection);2682    this.collection = collection;2683  }26842685  async getData(blockHashAt?: string) {2686    return await this.collection.getToken(this.tokenId, blockHashAt);2687  }26882689  async getTop10Owners() {2690    return await this.collection.getTop10TokenOwners(this.tokenId);2691  }26922693  async getBalance(addressObj: ICrossAccountId) {2694    return await this.collection.getTokenBalance(this.tokenId, addressObj);2695  }26962697  async getTotalPieces() {2698    return await this.collection.getTokenTotalPieces(this.tokenId);2699  }27002701  async getApprovedPieces(fromAddressObj: ICrossAccountId, toAccountObj: ICrossAccountId) {2702    return await this.collection.getTokenApprovedPieces(this.tokenId, fromAddressObj, toAccountObj);2703  }27042705  async transfer(signer: TSigner, addressObj: ICrossAccountId, amount=1n) {2706    return await this.collection.transferToken(signer, this.tokenId, addressObj, amount);2707  }27082709  async transferFrom(signer: TSigner, fromAddressObj: ICrossAccountId, toAddressObj: ICrossAccountId, amount=1n) {2710    return await this.collection.transferTokenFrom(signer, this.tokenId, fromAddressObj, toAddressObj, amount);2711  }27122713  async approve(signer: TSigner, toAddressObj: ICrossAccountId, amount=1n) {2714    return await this.collection.approveToken(signer, this.tokenId, toAddressObj, amount);2715  }27162717  async repartition(signer: TSigner, amount: bigint) {2718    return await this.collection.repartitionToken(signer, this.tokenId, amount);2719  }27202721  async burn(signer: TSigner, amount=1n) {2722    return await this.collection.burnToken(signer, this.tokenId, amount);2723  }27242725  async burnFrom(signer: TSigner, fromAddressObj: ICrossAccountId, amount=1n) {2726    return await this.collection.burnTokenFrom(signer, this.tokenId, fromAddressObj, amount);2727  }2728}
after · tests/src/util/playgrounds/unique.ts
1// Copyright 2019-2022 Unique Network (Gibraltar) Ltd.2// SPDX-License-Identifier: Apache-2.034/* eslint-disable @typescript-eslint/no-var-requires */5/* eslint-disable function-call-argument-newline */6/* eslint-disable no-prototype-builtins */78import {ApiPromise, WsProvider, Keyring} from '@polkadot/api';9import {ApiInterfaceEvents, SignerOptions} from '@polkadot/api/types';10import {encodeAddress, decodeAddress, keccakAsHex, evmToAddress, addressToEvm} from '@polkadot/util-crypto';11import {IKeyringPair} from '@polkadot/types/types';12import {IApiListeners, IBlock, IEvent, IChainProperties, ICollectionCreationOptions, ICollectionLimits, ICollectionPermissions, ICrossAccountId, ICrossAccountIdLower, ILogger, INestingPermissions, IProperty, IStakingInfo, ISchedulerOptions, ISubstrateBalance, IToken, ITokenPropertyPermission, ITransactionResult, IUniqueHelperLog, TApiAllowedListeners, TEthereumAccount, TSigner, TSubstrateAccount, TUniqueNetworks} from './types';1314export class CrossAccountId implements ICrossAccountId {15  Substrate?: TSubstrateAccount;16  Ethereum?: TEthereumAccount;1718  constructor(account: ICrossAccountId) {19    if (account.Substrate) this.Substrate = account.Substrate;20    if (account.Ethereum) this.Ethereum = account.Ethereum;21  }2223  static fromKeyring(account: IKeyringPair, domain: 'Substrate' | 'Ethereum' = 'Substrate') {24    switch (domain) {25      case 'Substrate': return new CrossAccountId({Substrate: account.address});26      case 'Ethereum': return new CrossAccountId({Substrate: account.address}).toEthereum();27    }28  }2930  static fromLowerCaseKeys(address: ICrossAccountIdLower): CrossAccountId {31    return new CrossAccountId({Substrate: address.substrate, Ethereum: address.ethereum});32  }3334  static normalizeSubstrateAddress(address: TSubstrateAccount, ss58Format = 42): TSubstrateAccount {35    return encodeAddress(decodeAddress(address), ss58Format);36  }3738  static withNormalizedSubstrate(address: TSubstrateAccount, ss58Format = 42): CrossAccountId {39    return new CrossAccountId({Substrate: CrossAccountId.normalizeSubstrateAddress(address, ss58Format)});40  }41  42  withNormalizedSubstrate(ss58Format = 42): CrossAccountId {43    if (this.Substrate) return CrossAccountId.withNormalizedSubstrate(this.Substrate, ss58Format);44    return this;45  }4647  static translateSubToEth(address: TSubstrateAccount): TEthereumAccount {48    return nesting.toChecksumAddress('0x' + Array.from(addressToEvm(address), i => i.toString(16).padStart(2, '0')).join(''));49  }5051  toEthereum(): CrossAccountId {52    if (this.Substrate) return new CrossAccountId({Ethereum: CrossAccountId.translateSubToEth(this.Substrate)});53    return this;54  }5556  static translateEthToSub(address: TEthereumAccount, ss58Format?: number): TSubstrateAccount {57    return evmToAddress(address, ss58Format);58  }5960  toSubstrate(ss58Format?: number): CrossAccountId {61    if (this.Ethereum) return new CrossAccountId({Substrate: CrossAccountId.translateEthToSub(this.Ethereum, ss58Format)});62    return this;63  }64  65  toLowerCase(): CrossAccountId {66    if (this.Substrate) this.Substrate = this.Substrate.toLowerCase();67    if (this.Ethereum) this.Ethereum = this.Ethereum.toLowerCase();68    return this;69  }70}7172const nesting = {73  toChecksumAddress(address: string): string {74    if (typeof address === 'undefined') return '';7576    if(!/^(0x)?[0-9a-f]{40}$/i.test(address)) throw new Error(`Given address "${address}" is not a valid Ethereum address.`);7778    address = address.toLowerCase().replace(/^0x/i,'');79    const addressHash = keccakAsHex(address).replace(/^0x/i,'');80    const checksumAddress = ['0x'];8182    for (let i = 0; i < address.length; i++) {83      // If ith character is 8 to f then make it uppercase84      if (parseInt(addressHash[i], 16) > 7) {85        checksumAddress.push(address[i].toUpperCase());86      } else {87        checksumAddress.push(address[i]);88      }89    }90    return checksumAddress.join('');91  },92  tokenIdToAddress(collectionId: number, tokenId: number) {93    return this.toChecksumAddress(`0xf8238ccfff8ed887463fd5e0${collectionId.toString(16).padStart(8, '0')}${tokenId.toString(16).padStart(8, '0')}`);94  },95};9697class UniqueUtil {98  static transactionStatus = {99    NOT_READY: 'NotReady',100    FAIL: 'Fail',101    SUCCESS: 'Success',102  };103104  static chainLogType = {105    EXTRINSIC: 'extrinsic',106    RPC: 'rpc',107  };108109  static getTokenAccount(token: IToken): CrossAccountId {110    return new CrossAccountId({Ethereum: this.getTokenAddress(token)});111  }112113  static getTokenAddress(token: IToken): string {114    return nesting.tokenIdToAddress(token.collectionId, token.tokenId);115  }116117  static getDefaultLogger(): ILogger {118    return {119      log(msg: any, level = 'INFO') {120        console[level.toLocaleLowerCase() === 'error' ? 'error' : 'log'](...(Array.isArray(msg) ? msg : [msg]));121      },122      level: {123        ERROR: 'ERROR',124        WARNING: 'WARNING',125        INFO: 'INFO',126      },127    };128  }129130  static vec2str(arr: string[] | number[]) {131    return arr.map(x => String.fromCharCode(parseInt(x.toString()))).join('');132  }133134  static str2vec(string: string) {135    if (typeof string !== 'string') return string;136    return Array.from(string).map(x => x.charCodeAt(0));137  }138139  static fromSeed(seed: string, ss58Format = 42) {140    const keyring = new Keyring({type: 'sr25519', ss58Format});141    return keyring.addFromUri(seed);142  }143144  static extractCollectionIdFromCreationResult(creationResult: ITransactionResult): number {145    if (creationResult.status !== this.transactionStatus.SUCCESS) {146      throw Error('Unable to create collection!');147    }148149    let collectionId = null;150    creationResult.result.events.forEach(({event: {data, method, section}}) => {151      if ((section === 'common') && (method === 'CollectionCreated')) {152        collectionId = parseInt(data[0].toString(), 10);153      }154    });155156    if (collectionId === null) {157      throw Error('No CollectionCreated event was found!');158    }159160    return collectionId;161  }162163  static extractTokensFromCreationResult(creationResult: ITransactionResult): {164    success: boolean, 165    tokens: {collectionId: number, tokenId: number, owner: CrossAccountId, amount: bigint}[],166  } {167    if (creationResult.status !== this.transactionStatus.SUCCESS) {168      throw Error('Unable to create tokens!');169    }170    let success = false;171    const tokens = [] as {collectionId: number, tokenId: number, owner: CrossAccountId, amount: bigint}[];172    creationResult.result.events.forEach(({event: {data, method, section}}) => {173      if (method === 'ExtrinsicSuccess') {174        success = true;175      } else if ((section === 'common') && (method === 'ItemCreated')) {176        tokens.push({177          collectionId: parseInt(data[0].toString(), 10),178          tokenId: parseInt(data[1].toString(), 10),179          owner: data[2].toHuman(),180          amount: data[3].toBigInt(),181        });182      }183    });184    return {success, tokens};185  }186187  static extractTokensFromBurnResult(burnResult: ITransactionResult): {188    success: boolean, 189    tokens: {collectionId: number, tokenId: number, owner: CrossAccountId, amount: bigint}[],190  } {191    if (burnResult.status !== this.transactionStatus.SUCCESS) {192      throw Error('Unable to burn tokens!');193    }194    let success = false;195    const tokens = [] as {collectionId: number, tokenId: number, owner: CrossAccountId, amount: bigint}[];196    burnResult.result.events.forEach(({event: {data, method, section}}) => {197      if (method === 'ExtrinsicSuccess') {198        success = true;199      } else if ((section === 'common') && (method === 'ItemDestroyed')) {200        tokens.push({201          collectionId: parseInt(data[0].toString(), 10),202          tokenId: parseInt(data[1].toString(), 10),203          owner: data[2].toHuman(),204          amount: data[3].toBigInt(),205        });206      }207    });208    return {success, tokens};209  }210211  static findCollectionInEvents(events: {event: IEvent}[], collectionId: number, expectedSection: string, expectedMethod: string): boolean {212    let eventId = null;213    events.forEach(({event: {data, method, section}}) => {214      if ((section === expectedSection) && (method === expectedMethod)) {215        eventId = parseInt(data[0].toString(), 10);216      }217    });218219    if (eventId === null) {220      throw Error(`No ${expectedMethod} event was found!`);221    }222    return eventId === collectionId;223  }224225  static isTokenTransferSuccess(events: {event: IEvent}[], collectionId: number, tokenId: number, fromAddressObj: ICrossAccountId, toAddressObj: ICrossAccountId, amount=1n) {226    const normalizeAddress = (address: string | ICrossAccountId) => {227      if(typeof address === 'string') return address;228      const obj = {} as any;229      Object.keys(address).forEach(k => {230        obj[k.toLocaleLowerCase()] = address[k as 'Substrate' | 'Ethereum'];231      });232      if(obj.substrate) return CrossAccountId.withNormalizedSubstrate(obj.substrate);233      if(obj.ethereum) return CrossAccountId.fromLowerCaseKeys(obj).toLowerCase();234      return address;235    };236    let transfer = {collectionId: null, tokenId: null, from: null, to: null, amount: 1} as any;237    events.forEach(({event: {data, method, section}}) => {238      if ((section === 'common') && (method === 'Transfer')) {239        const hData = (data as any).toJSON();240        transfer = {241          collectionId: hData[0],242          tokenId: hData[1],243          from: normalizeAddress(hData[2]),244          to: normalizeAddress(hData[3]),245          amount: BigInt(hData[4]),246        };247      }248    });249    let isSuccess = parseInt(collectionId.toString()) === transfer.collectionId && parseInt(tokenId.toString()) === transfer.tokenId;250    isSuccess = isSuccess && JSON.stringify(normalizeAddress(fromAddressObj)) === JSON.stringify(transfer.from);251    isSuccess = isSuccess && JSON.stringify(normalizeAddress(toAddressObj)) === JSON.stringify(transfer.to);252    isSuccess = isSuccess && amount === transfer.amount;253    return isSuccess;254  }255}256257class UniqueEventHelper {258  private static extractIndex(index: any): [number, number] | string {259    if(index.toRawType() === '[u8;2]') return [index[0], index[1]];260    return index.toJSON();261  }262263  private static extractSub(data: any, subTypes: any): {[key: string]: any} {264    let obj: any = {};265    let index = 0;266267    if (data.entries) {268      for(const [key, value] of data.entries()) {269        obj[key] = this.extractData(value, subTypes[index]);270        index++;271      }272    } else obj = data.toJSON();273274    return obj;275  }276  277  private static extractData(data: any, type: any): any {278    if(!type) return data.toHuman();279    if (['u16', 'u32'].indexOf(type.type) > -1) return data.toNumber();280    if (['u64', 'u128', 'u256'].indexOf(type.type) > -1) return data.toBigInt();281    if(type.hasOwnProperty('sub')) return this.extractSub(data, type.sub);282    return data.toHuman();283  }284285  public static extractEvents(records: ITransactionResult): IEvent[] {286    const parsedEvents: IEvent[] = [];287288    records.result.events.forEach((record) => {289      const {event, phase} = record;290      const types = (event as any).typeDef;291292      const eventData: IEvent = {293        section: event.section.toString(),294        method: event.method.toString(),295        index: this.extractIndex(event.index),296        data: [],297        phase: phase.toJSON(),298      };299300      event.data.forEach((val: any, index: number) => {301        eventData.data.push(this.extractData(val, types[index]));302      });303304      parsedEvents.push(eventData);305    });306307    return parsedEvents;308  }309}310311class ChainHelperBase {312  transactionStatus = UniqueUtil.transactionStatus;313  chainLogType = UniqueUtil.chainLogType;314  util: typeof UniqueUtil;315  eventHelper: typeof UniqueEventHelper;316  logger: ILogger;317  api: ApiPromise | null;318  forcedNetwork: TUniqueNetworks | null;319  network: TUniqueNetworks | null;320  chainLog: IUniqueHelperLog[];321  children: ChainHelperBase[];322323  constructor(logger?: ILogger) {324    this.util = UniqueUtil;325    this.eventHelper = UniqueEventHelper;326    if (typeof logger == 'undefined') logger = this.util.getDefaultLogger();327    this.logger = logger;328    this.api = null;329    this.forcedNetwork = null;330    this.network = null;331    this.chainLog = [];332    this.children = [];333  }334335  getApi(): ApiPromise {336    if(this.api === null) throw Error('API not initialized');337    return this.api;338  }339340  clearChainLog(): void {341    this.chainLog = [];342  }343344  forceNetwork(value: TUniqueNetworks): void {345    this.forcedNetwork = value;346  }347348  async connect(wsEndpoint: string, listeners?: IApiListeners) {349    if (this.api !== null) throw Error('Already connected');350    const {api, network} = await ChainHelperBase.createConnection(wsEndpoint, listeners, this.forcedNetwork);351    this.api = api;352    this.network = network;353  }354355  async disconnect() {356    for (const child of this.children) {357      child.clearApi();358    }359360    if (this.api === null) return;361    await this.api.disconnect();362    this.clearApi();363  }364365  clearApi() {366    this.api = null;367    this.network = null;368  }369370  static async detectNetwork(api: ApiPromise): Promise<TUniqueNetworks> {371    const spec = (await api.query.system.lastRuntimeUpgrade()).toJSON() as any;372    if(['quartz', 'unique'].indexOf(spec.specName) > -1) return spec.specName;373    return 'opal';374  }375376  static async detectNetworkByWsEndpoint(wsEndpoint: string): Promise<TUniqueNetworks> {377    const api = new ApiPromise({provider: new WsProvider(wsEndpoint)});378    await api.isReady;379380    const network = await this.detectNetwork(api);381382    await api.disconnect();383384    return network;385  }386387  static async createConnection(wsEndpoint: string, listeners?: IApiListeners, network?: TUniqueNetworks | null): Promise<{388    api: ApiPromise;389    network: TUniqueNetworks;390  }> {391    if(typeof network === 'undefined' || network === null) network = 'opal';392    const supportedRPC = {393      opal: {394        unique: require('@unique-nft/opal-testnet-types/definitions').unique.rpc,395      },396      quartz: {397        unique: require('@unique-nft/quartz-mainnet-types/definitions').unique.rpc,398      },399      unique: {400        unique: require('@unique-nft/unique-mainnet-types/definitions').unique.rpc,401      },402    };403    if(!supportedRPC.hasOwnProperty(network)) network = await this.detectNetworkByWsEndpoint(wsEndpoint);404    const rpc = supportedRPC[network];405406    // TODO: investigate how to replace rpc in runtime407    // api._rpcCore.addUserInterfaces(rpc);408409    const api = new ApiPromise({provider: new WsProvider(wsEndpoint), rpc});410411    await api.isReadyOrError;412413    if (typeof listeners === 'undefined') listeners = {};414    for (const event of ['connected', 'disconnected', 'error', 'ready', 'decorated']) {415      if (!listeners.hasOwnProperty(event) || typeof listeners[event as TApiAllowedListeners] === 'undefined') continue;416      api.on(event as ApiInterfaceEvents, listeners[event as TApiAllowedListeners] as (...args: any[]) => any);417    }418419    return {api, network};420  }421422  getTransactionStatus(data: {events: {event: IEvent}[], status: any}) {423    const {events, status} = data;424    if (status.isReady) {425      return this.transactionStatus.NOT_READY;426    }427    if (status.isBroadcast) {428      return this.transactionStatus.NOT_READY;429    }430    if (status.isInBlock || status.isFinalized) {431      const errors = events.filter(e => e.event.method === 'ExtrinsicFailed');432      if (errors.length > 0) {433        return this.transactionStatus.FAIL;434      }435      if (events.filter(e => e.event.method === 'ExtrinsicSuccess').length > 0) {436        return this.transactionStatus.SUCCESS;437      }438    }439440    return this.transactionStatus.FAIL;441  }442443  signTransaction(sender: TSigner, transaction: any, options: Partial<SignerOptions> | null = null, label = 'transaction') {444    const sign = (callback: any) => {445      if(options !== null) return transaction.signAndSend(sender, options, callback);446      return transaction.signAndSend(sender, callback);447    };448    // eslint-disable-next-line no-async-promise-executor449    return new Promise(async (resolve, reject) => {450      try {451        const unsub = await sign((result: any) => {452          const status = this.getTransactionStatus(result);453454          if (status === this.transactionStatus.SUCCESS) {455            this.logger.log(`${label} successful`);456            unsub();457            resolve({result, status});458          } else if (status === this.transactionStatus.FAIL) {459            let moduleError = null;460461            if (result.hasOwnProperty('dispatchError')) {462              const dispatchError = result['dispatchError'];463464              if (dispatchError) {465                if (dispatchError.isModule) {466                  const modErr = dispatchError.asModule;467                  const errorMeta = dispatchError.registry.findMetaError(modErr);468469                  moduleError = `${errorMeta.section}.${errorMeta.name}`;470                } else {471                  moduleError = dispatchError.toHuman();472                }473              } else {474                this.logger.log(result, this.logger.level.ERROR);475              }476            }477478            this.logger.log(`Something went wrong with ${label}. Status: ${status}`, this.logger.level.ERROR);479            unsub();480            reject({status, moduleError, result});481          }482        });483      } catch (e) {484        this.logger.log(e, this.logger.level.ERROR);485        reject(e);486      }487    });488  }489490  constructApiCall(apiCall: string, params: any[]) {491    if(!apiCall.startsWith('api.')) throw Error(`Invalid api call: ${apiCall}`);492    let call = this.getApi() as any;493    for(const part of apiCall.slice(4).split('.')) {494      call = call[part];495    }496    return call(...params);497  }498499  async executeExtrinsic(sender: TSigner, extrinsic: string, params: any[], expectSuccess=true, options: Partial<SignerOptions>|null = null/*, failureMessage='expected success'*/) {500    if(this.api === null) throw Error('API not initialized');501    if(!extrinsic.startsWith('api.tx.')) throw Error(`${extrinsic} is not transaction`);502503    const startTime = (new Date()).getTime();504    let result: ITransactionResult;505    let events: IEvent[] = [];506    try {507      result = await this.signTransaction(sender, this.constructApiCall(extrinsic, params), options, extrinsic) as ITransactionResult;508      events = this.eventHelper.extractEvents(result);509    }510    catch(e) {511      if(!(e as object).hasOwnProperty('status')) throw e;512      result = e as ITransactionResult;513    }514515    const endTime = (new Date()).getTime();516517    const log = {518      executedAt: endTime,519      executionTime: endTime - startTime,520      type: this.chainLogType.EXTRINSIC,521      status: result.status,522      call: extrinsic,523      signer: this.getSignerAddress(sender),524      params,525    } as IUniqueHelperLog;526527    if(result.status !== this.transactionStatus.SUCCESS) {528      if (result.moduleError) log.moduleError = result.moduleError;529      else if (result.result.dispatchError) log.dispatchError = result.result.dispatchError;530    }531    if(events.length > 0) log.events = events;532533    this.chainLog.push(log);534535    if(expectSuccess && result.status !== this.transactionStatus.SUCCESS) {536      if (result.moduleError) throw Error(`${result.moduleError}`);537      else if (result.result.dispatchError) throw Error(JSON.stringify(result.result.dispatchError));538    }539    return result;540  }541542  async callRpc(rpc: string, params?: any[]) {543    if(typeof params === 'undefined') params = [];544    if(this.api === null) throw Error('API not initialized');545    if(!rpc.startsWith('api.rpc.') && !rpc.startsWith('api.query.')) throw Error(`${rpc} is not RPC call`);546547    const startTime = (new Date()).getTime();548    let result;549    let error = null;550    const log = {551      type: this.chainLogType.RPC,552      call: rpc,553      params,554    } as IUniqueHelperLog;555556    try {557      result = await this.constructApiCall(rpc, params);558    }559    catch(e) {560      error = e;561    }562563    const endTime = (new Date()).getTime();564565    log.executedAt = endTime;566    log.status = (error === null ? this.transactionStatus.SUCCESS : this.transactionStatus.FAIL) as 'Fail' | 'Success';567    log.executionTime = endTime - startTime;568569    this.chainLog.push(log);570571    if(error !== null) throw error;572573    return result;574  }575576  getSignerAddress(signer: IKeyringPair | string): string {577    if(typeof signer === 'string') return signer;578    return signer.address;579  }580581  fetchAllPalletNames(): string[] {582    if(this.api === null) throw Error('API not initialized');583    return this.api.runtimeMetadata.asLatest.pallets.map(m => m.name.toString().toLowerCase());584  }585586  fetchMissingPalletNames(requiredPallets: string[]): string[] {587    const palletNames = this.fetchAllPalletNames();588    return requiredPallets.filter(p => !palletNames.includes(p));589  }590}591592593class HelperGroup {594  helper: UniqueHelper;595596  constructor(uniqueHelper: UniqueHelper) {597    this.helper = uniqueHelper;598  }599}600601602class CollectionGroup extends HelperGroup {603  /**604 * Get number of blocks when sponsored transaction is available.605 *606 * @param collectionId ID of collection607 * @param tokenId ID of token608 * @param addressObj address for which the sponsorship is checked609 * @example await getTokenNextSponsored(1, 2, {Substrate: '5DfhbVfww7ThF8q6f3...'});610 * @returns number of blocks or null if sponsorship hasn't been set611 */612  async getTokenNextSponsored(collectionId: number, tokenId: number, addressObj: ICrossAccountId): Promise<number | null> {613    return (await this.helper.callRpc('api.rpc.unique.nextSponsored', [collectionId, addressObj, tokenId])).toJSON();614  }615616  /**617   * Get the number of created collections.618   *619   * @returns number of created collections620   */621  async getTotalCount(): Promise<number> {622    return (await this.helper.callRpc('api.rpc.unique.collectionStats')).created.toNumber();623  }624625  /**626   * Get information about the collection with additional data,627   * including the number of tokens it contains, its administrators,628   * the normalized address of the collection's owner, and decoded name and description.629   *630   * @param collectionId ID of collection631   * @example await getData(2)632   * @returns collection information object633   */634  async getData(collectionId: number): Promise<{635    id: number;636    name: string;637    description: string;638    tokensCount: number;639    admins: CrossAccountId[];640    normalizedOwner: TSubstrateAccount;641    raw: any642  } | null> {643    const collection = await this.helper.callRpc('api.rpc.unique.collectionById', [collectionId]);644    const humanCollection = collection.toHuman(), collectionData = {645      id: collectionId, name: null, description: null, tokensCount: 0, admins: [],646      raw: humanCollection,647    } as any, jsonCollection = collection.toJSON();648    if (humanCollection === null) return null;649    collectionData.raw.limits = jsonCollection.limits;650    collectionData.raw.permissions = jsonCollection.permissions;651    collectionData.normalizedOwner = this.helper.address.normalizeSubstrate(collectionData.raw.owner);652    for (const key of ['name', 'description']) {653      collectionData[key] = this.helper.util.vec2str(humanCollection[key]);654    }655656    collectionData.tokensCount = (['RFT', 'NFT'].includes(humanCollection.mode))657      ? await this.helper[humanCollection.mode.toLocaleLowerCase() as 'nft' | 'rft'].getLastTokenId(collectionId)658      : 0;659    collectionData.admins = await this.getAdmins(collectionId);660661    return collectionData;662  }663664  /**665   * Get the addresses of the collection's administrators, optionally normalized.666   *667   * @param collectionId ID of collection668   * @param normalize whether to normalize the addresses to the default ss58 format669   * @example await getAdmins(1)670   * @returns array of administrators671   */672  async getAdmins(collectionId: number, normalize = false): Promise<CrossAccountId[]> {673    const admins = (await this.helper.callRpc('api.rpc.unique.adminlist', [collectionId])).toHuman();674675    return normalize676      ? admins.map((address: CrossAccountId) => address.withNormalizedSubstrate())677      : admins;678  }679680  /**681   * Get the addresses added to the collection allow-list, optionally normalized.682   * @param collectionId ID of collection683   * @param normalize whether to normalize the addresses to the default ss58 format684   * @example await getAllowList(1)685   * @returns array of allow-listed addresses686   */687  async getAllowList(collectionId: number, normalize = false): Promise<CrossAccountId[]> {688    const allowListed = (await this.helper.callRpc('api.rpc.unique.allowlist', [collectionId])).toHuman();689    return normalize690      ? allowListed.map((address: CrossAccountId) => address.withNormalizedSubstrate())691      : allowListed;692  }693694  /**695   * Get the effective limits of the collection instead of null for default values696   *697   * @param collectionId ID of collection698   * @example await getEffectiveLimits(2)699   * @returns object of collection limits700   */701  async getEffectiveLimits(collectionId: number): Promise<ICollectionLimits> {702    return (await this.helper.callRpc('api.rpc.unique.effectiveCollectionLimits', [collectionId])).toJSON();703  }704705  /**706   * Burns the collection if the signer has sufficient permissions and collection is empty.707   *708   * @param signer keyring of signer709   * @param collectionId ID of collection710   * @example await helper.collection.burn(aliceKeyring, 3);711   * @returns ```true``` if extrinsic success, otherwise ```false```712   */713  async burn(signer: TSigner, collectionId: number): Promise<boolean> {714    const result = await this.helper.executeExtrinsic(715      signer,716      'api.tx.unique.destroyCollection', [collectionId],717      true,718    );719720    return this.helper.util.findCollectionInEvents(result.result.events, collectionId, 'common', 'CollectionDestroyed');721  }722723  /**724   * Sets the sponsor for the collection (Requires the Substrate address). Needs confirmation by the sponsor.725   *726   * @param signer keyring of signer727   * @param collectionId ID of collection728   * @param sponsorAddress Sponsor substrate address729   * @example setSponsor(aliceKeyring, 10, "5DyN4Y92vZCjv38fg...")730   * @returns ```true``` if extrinsic success, otherwise ```false```731   */732  async setSponsor(signer: TSigner, collectionId: number, sponsorAddress: TSubstrateAccount): Promise<boolean> {733    const result = await this.helper.executeExtrinsic(734      signer,735      'api.tx.unique.setCollectionSponsor', [collectionId, sponsorAddress],736      true,737    );738739    return this.helper.util.findCollectionInEvents(result.result.events, collectionId, 'unique', 'CollectionSponsorSet');740  }741742  /**743   * Confirms consent to sponsor the collection on behalf of the signer.744   *745   * @param signer keyring of signer746   * @param collectionId ID of collection747   * @example confirmSponsorship(aliceKeyring, 10)748   * @returns ```true``` if extrinsic success, otherwise ```false```749   */750  async confirmSponsorship(signer: TSigner, collectionId: number): Promise<boolean> {751    const result = await this.helper.executeExtrinsic(752      signer,753      'api.tx.unique.confirmSponsorship', [collectionId],754      true,755    );756757    return this.helper.util.findCollectionInEvents(result.result.events, collectionId, 'unique', 'SponsorshipConfirmed');758  }759760  /**761   * Removes the sponsor of a collection, regardless if it consented or not.762   *763   * @param signer keyring of signer764   * @param collectionId ID of collection765   * @example removeSponsor(aliceKeyring, 10)766   * @returns ```true``` if extrinsic success, otherwise ```false```767   */768  async removeSponsor(signer: TSigner, collectionId: number): Promise<boolean> {769    const result = await this.helper.executeExtrinsic(770      signer,771      'api.tx.unique.removeCollectionSponsor', [collectionId],772      true,773    );774775    return this.helper.util.findCollectionInEvents(result.result.events, collectionId, 'unique', 'CollectionSponsorRemoved');776  }777778  /**779   * Sets the limits of the collection. At least one limit must be specified for a correct call.780   *781   * @param signer keyring of signer782   * @param collectionId ID of collection783   * @param limits collection limits object784   * @example785   * await setLimits(786   *   aliceKeyring,787   *   10,788   *   {789   *     sponsorTransferTimeout: 0,790   *     ownerCanDestroy: false791   *   }792   * )793   * @returns ```true``` if extrinsic success, otherwise ```false```794   */795  async setLimits(signer: TSigner, collectionId: number, limits: ICollectionLimits): Promise<boolean> {796    const result = await this.helper.executeExtrinsic(797      signer,798      'api.tx.unique.setCollectionLimits', [collectionId, limits],799      true,800    );801802    return this.helper.util.findCollectionInEvents(result.result.events, collectionId, 'unique', 'CollectionLimitSet');803  }804805  /**806   * Changes the owner of the collection to the new Substrate address.807   *808   * @param signer keyring of signer809   * @param collectionId ID of collection810   * @param ownerAddress substrate address of new owner811   * @example changeOwner(aliceKeyring, 10, "5DyN4Y92vZCjv38fg...")812   * @returns ```true``` if extrinsic success, otherwise ```false```813   */814  async changeOwner(signer: TSigner, collectionId: number, ownerAddress: TSubstrateAccount): Promise<boolean> {815    const result = await this.helper.executeExtrinsic(816      signer,817      'api.tx.unique.changeCollectionOwner', [collectionId, ownerAddress],818      true,819    );820821    return this.helper.util.findCollectionInEvents(result.result.events, collectionId, 'unique', 'CollectionOwnedChanged');822  }823824  /**825   * Adds a collection administrator.826   *827   * @param signer keyring of signer828   * @param collectionId ID of collection829   * @param adminAddressObj Administrator address (substrate or ethereum)830   * @example addAdmin(aliceKeyring, 10, {Substrate: "5DyN4Y92vZCjv38fg..."})831   * @returns ```true``` if extrinsic success, otherwise ```false```832   */833  async addAdmin(signer: TSigner, collectionId: number, adminAddressObj: ICrossAccountId): Promise<boolean> {834    const result = await this.helper.executeExtrinsic(835      signer,836      'api.tx.unique.addCollectionAdmin', [collectionId, adminAddressObj],837      true,838    );839840    return this.helper.util.findCollectionInEvents(result.result.events, collectionId, 'unique', 'CollectionAdminAdded');841  }842843  /**844   * Removes a collection administrator.845   *846   * @param signer keyring of signer847   * @param collectionId ID of collection848   * @param adminAddressObj Administrator address (substrate or ethereum)849   * @example removeAdmin(aliceKeyring, 10, {Substrate: "5DyN4Y92vZCjv38fg..."})850   * @returns ```true``` if extrinsic success, otherwise ```false```851   */852  async removeAdmin(signer: TSigner, collectionId: number, adminAddressObj: ICrossAccountId): Promise<boolean> {853    const result = await this.helper.executeExtrinsic(854      signer,855      'api.tx.unique.removeCollectionAdmin', [collectionId, adminAddressObj],856      true,857    );858859    return this.helper.util.findCollectionInEvents(result.result.events, collectionId, 'unique', 'CollectionAdminRemoved');860  }861862  /**863   * Check if user is in allow list.864   * 865   * @param collectionId ID of collection866   * @param user Account to check867   * @example await getAdmins(1)868   * @returns is user in allow list869   */870  async allowed(collectionId: number, user: ICrossAccountId): Promise<boolean> {871    return (await this.helper.callRpc('api.rpc.unique.allowed', [collectionId, user])).toJSON();872  }873874  /**875   * Adds an address to allow list876   * @param signer keyring of signer877   * @param collectionId ID of collection878   * @param addressObj address to add to the allow list879   * @returns ```true``` if extrinsic success, otherwise ```false```880   */881  async addToAllowList(signer: TSigner, collectionId: number, addressObj: ICrossAccountId): Promise<boolean> {882    const result = await this.helper.executeExtrinsic(883      signer,884      'api.tx.unique.addToAllowList', [collectionId, addressObj],885      true,886    );887888    return this.helper.util.findCollectionInEvents(result.result.events, collectionId, 'unique', 'AllowListAddressAdded');889  }890891  /**892   * Removes an address from allow list893   *894   * @param signer keyring of signer895   * @param collectionId ID of collection896   * @param addressObj address to remove from the allow list897   * @returns ```true``` if extrinsic success, otherwise ```false```898   */899  async removeFromAllowList(signer: TSigner, collectionId: number, addressObj: ICrossAccountId): Promise<boolean> {900    const result = await this.helper.executeExtrinsic(901      signer,902      'api.tx.unique.removeFromAllowList', [collectionId, addressObj],903      true,904    );905906    return this.helper.util.findCollectionInEvents(result.result.events, collectionId, 'unique', 'AllowListAddressRemoved');907  }908909  /**910   * Sets onchain permissions for selected collection.911   *912   * @param signer keyring of signer913   * @param collectionId ID of collection914   * @param permissions collection permissions object915   * @example setPermissions(aliceKeyring, 10, {access:'AllowList', mintMode: true, nesting: {collectionAdmin: true, tokenOwner: true}});916   * @returns ```true``` if extrinsic success, otherwise ```false```917   */918  async setPermissions(signer: TSigner, collectionId: number, permissions: ICollectionPermissions): Promise<boolean> {919    const result = await this.helper.executeExtrinsic(920      signer,921      'api.tx.unique.setCollectionPermissions', [collectionId, permissions],922      true,923    );924925    return this.helper.util.findCollectionInEvents(result.result.events, collectionId, 'unique', 'CollectionPermissionSet');926  }927928  /**929   * Enables nesting for selected collection. If `restricted` set, you can nest only tokens from specified collections.930   *931   * @param signer keyring of signer932   * @param collectionId ID of collection933   * @param permissions nesting permissions object934   * @example enableNesting(aliceKeyring, 10, {collectionAdmin: true, tokenOwner: true});935   * @returns ```true``` if extrinsic success, otherwise ```false```936   */937  async enableNesting(signer: TSigner, collectionId: number, permissions: INestingPermissions): Promise<boolean> {938    return await this.setPermissions(signer, collectionId, {nesting: permissions});939  }940941  /**942   * Disables nesting for selected collection.943   *944   * @param signer keyring of signer945   * @param collectionId ID of collection946   * @example disableNesting(aliceKeyring, 10);947   * @returns ```true``` if extrinsic success, otherwise ```false```948   */949  async disableNesting(signer: TSigner, collectionId: number): Promise<boolean> {950    return await this.setPermissions(signer, collectionId, {nesting: {tokenOwner: false, collectionAdmin: false}});951  }952953  /**954   * Sets onchain properties to the collection.955   *956   * @param signer keyring of signer957   * @param collectionId ID of collection958   * @param properties array of property objects959   * @example setProperties(aliceKeyring, 10, [{key: "gender", value: "male"}]);960   * @returns ```true``` if extrinsic success, otherwise ```false```961   */962  async setProperties(signer: TSigner, collectionId: number, properties: IProperty[]): Promise<boolean> {963    const result = await this.helper.executeExtrinsic(964      signer,965      'api.tx.unique.setCollectionProperties', [collectionId, properties],966      true,967    );968969    return this.helper.util.findCollectionInEvents(result.result.events, collectionId, 'common', 'CollectionPropertySet');970  }971972  /**973   * Get collection properties.974   * 975   * @param collectionId ID of collection976   * @param propertyKeys optionally filter the returned properties to only these keys977   * @example getProperties(1219, ['location', 'date', 'time', 'isParadise']);978   * @returns array of key-value pairs979   */980  async getProperties(collectionId: number, propertyKeys?: string[] | null): Promise<IProperty[]> {981    return (await this.helper.callRpc('api.rpc.unique.collectionProperties', [collectionId, propertyKeys])).toHuman();982  }983984  /**985   * Deletes onchain properties from the collection.986   *987   * @param signer keyring of signer988   * @param collectionId ID of collection989   * @param propertyKeys array of property keys to delete990   * @example deleteProperties(aliceKeyring, 10, ["gender", "age"]);991   * @returns ```true``` if extrinsic success, otherwise ```false```992   */993  async deleteProperties(signer: TSigner, collectionId: number, propertyKeys: string[]): Promise<boolean> {994    const result = await this.helper.executeExtrinsic(995      signer,996      'api.tx.unique.deleteCollectionProperties', [collectionId, propertyKeys],997      true,998    );9991000    return this.helper.util.findCollectionInEvents(result.result.events, collectionId, 'common', 'CollectionPropertyDeleted');1001  }10021003  /**1004   * Changes the owner of the token.1005   *1006   * @param signer keyring of signer1007   * @param collectionId ID of collection1008   * @param tokenId ID of token1009   * @param addressObj address of a new owner1010   * @param amount amount of tokens to be transfered. For NFT must be set to 1n1011   * @example transferToken(aliceKeyring, 10, 5, {Substrate: "5DyN4Y92vZCjv38fg..."})1012   * @returns true if the token success, otherwise false1013   */1014  async transferToken(signer: TSigner, collectionId: number, tokenId: number, addressObj: ICrossAccountId, amount=1n): Promise<boolean> {1015    const result = await this.helper.executeExtrinsic(1016      signer,1017      'api.tx.unique.transfer', [addressObj, collectionId, tokenId, amount],1018      true, // `Unable to transfer token #${tokenId} from collection #${collectionId}`,1019    );10201021    return this.helper.util.isTokenTransferSuccess(result.result.events, collectionId, tokenId, {Substrate: typeof signer === 'string' ? signer : signer.address}, addressObj, amount);1022  }10231024  /**1025   *1026   * Change ownership of a token(s) on behalf of the owner.1027   *1028   * @param signer keyring of signer1029   * @param collectionId ID of collection1030   * @param tokenId ID of token1031   * @param fromAddressObj address on behalf of which the token will be sent1032   * @param toAddressObj new token owner1033   * @param amount amount of tokens to be transfered. For NFT must be set to 1n1034   * @example transferTokenFrom(aliceKeyring, 10, 5, {Substrate: "5DyN4Y92vZCjv38fg"}, {Ethereum: "0x9F0583DbB85..."})1035   * @returns true if the token success, otherwise false1036   */1037  async transferTokenFrom(signer: TSigner, collectionId: number, tokenId: number, fromAddressObj: ICrossAccountId, toAddressObj: ICrossAccountId, amount=1n): Promise<boolean> {1038    const result = await this.helper.executeExtrinsic(1039      signer,1040      'api.tx.unique.transferFrom', [fromAddressObj, toAddressObj, collectionId, tokenId, amount],1041      true, // `Unable to transfer token #${tokenId} from collection #${collectionId}`,1042    );1043    return this.helper.util.isTokenTransferSuccess(result.result.events, collectionId, tokenId, fromAddressObj, toAddressObj, amount);1044  }10451046  /**1047   *1048   * Destroys a concrete instance of NFT/RFT or burns a specified amount of fungible tokens.1049   *1050   * @param signer keyring of signer1051   * @param collectionId ID of collection1052   * @param tokenId ID of token1053   * @param amount amount of tokens to be burned. For NFT must be set to 1n1054   * @example burnToken(aliceKeyring, 10, 5);1055   * @returns ```true``` if the extrinsic is successful, otherwise ```false```1056   */1057  async burnToken(signer: TSigner, collectionId: number, tokenId: number, amount=1n): Promise<boolean> {1058    const burnResult = await this.helper.executeExtrinsic(1059      signer,1060      'api.tx.unique.burnItem', [collectionId, tokenId, amount],1061      true, // `Unable to burn token for ${label}`,1062    );1063    const burnedTokens = this.helper.util.extractTokensFromBurnResult(burnResult);1064    if (burnedTokens.tokens.length > 1) throw Error('Burned multiple tokens');1065    return burnedTokens.success;1066  }10671068  /**1069   * Destroys a concrete instance of NFT on behalf of the owner1070   *1071   * @param signer keyring of signer1072   * @param collectionId ID of collection1073   * @param tokenId ID of token1074   * @param fromAddressObj address on behalf of which the token will be burnt1075   * @param amount amount of tokens to be burned. For NFT must be set to 1n1076   * @example burnTokenFrom(aliceKeyring, 10, {Substrate: "5DyN4Y92vZCjv38fg..."}, 5, {Ethereum: "0x9F0583DbB85..."})1077   * @returns ```true``` if extrinsic success, otherwise ```false```1078   */1079  async burnTokenFrom(signer: TSigner, collectionId: number, tokenId: number, fromAddressObj: ICrossAccountId, amount=1n): Promise<boolean> {1080    const burnResult = await this.helper.executeExtrinsic(1081      signer,1082      'api.tx.unique.burnFrom', [collectionId, fromAddressObj, tokenId, amount],1083      true, // `Unable to burn token from for ${label}`,1084    );1085    const burnedTokens = this.helper.util.extractTokensFromBurnResult(burnResult);1086    return burnedTokens.success && burnedTokens.tokens.length > 0;1087  }10881089  /**1090   * Set, change, or remove approved address to transfer the ownership of the NFT.1091   *1092   * @param signer keyring of signer1093   * @param collectionId ID of collection1094   * @param tokenId ID of token1095   * @param toAddressObj Substrate or Ethereum address which gets approved use of the signer's tokens1096   * @param amount amount of token to be approved. For NFT must be set to 1n1097   * @returns ```true``` if extrinsic success, otherwise ```false```1098   */1099  async approveToken(signer: IKeyringPair, collectionId: number, tokenId: number, toAddressObj: ICrossAccountId, amount=1n) {1100    const approveResult = await this.helper.executeExtrinsic(1101      signer,1102      'api.tx.unique.approve', [toAddressObj, collectionId, tokenId, amount],1103      true, // `Unable to approve token for ${label}`,1104    );11051106    return this.helper.util.findCollectionInEvents(approveResult.result.events, collectionId, 'common', 'Approved');1107  }11081109  /**1110   * Get the amount of token pieces approved to transfer or burn. Normally 0.1111   *1112   * @param collectionId ID of collection1113   * @param tokenId ID of token1114   * @param toAccountObj address which is approved to use token pieces1115   * @param fromAccountObj address which may have allowed the use of its owned tokens1116   * @example getTokenApprovedPieces(10, 5, {Substrate: "5DyN4Y92vZCjv38fg..."}, {Substrate: "5ERZNF88Mm7UGfPP3mdG..."})1117   * @returns number of approved to transfer pieces1118   */1119  async getTokenApprovedPieces(collectionId: number, tokenId: number, toAccountObj: ICrossAccountId, fromAccountObj: ICrossAccountId): Promise<bigint> {1120    return (await this.helper.callRpc('api.rpc.unique.allowance', [collectionId, fromAccountObj, toAccountObj, tokenId])).toBigInt();1121  }11221123  /**1124   * Get the last created token ID in a collection1125   *1126   * @param collectionId ID of collection1127   * @example getLastTokenId(10);1128   * @returns id of the last created token1129   */1130  async getLastTokenId(collectionId: number): Promise<number> {1131    return (await this.helper.callRpc('api.rpc.unique.lastTokenId', [collectionId])).toNumber();1132  }11331134  /**1135   * Check if token exists1136   *1137   * @param collectionId ID of collection1138   * @param tokenId ID of token1139   * @example doesTokenExist(10, 20);1140   * @returns true if the token exists, otherwise false1141   */1142  async doesTokenExist(collectionId: number, tokenId: number): Promise<boolean> {1143    return (await this.helper.callRpc('api.rpc.unique.tokenExists', [collectionId, tokenId])).toJSON();1144  }1145}11461147class NFTnRFT extends CollectionGroup {1148  /**1149   * Get tokens owned by account1150   *1151   * @param collectionId ID of collection1152   * @param addressObj tokens owner1153   * @example getTokensByAddress(10, {Substrate: "5DyN4Y92vZCjv38fg..."})1154   * @returns array of token ids owned by account1155   */1156  async getTokensByAddress(collectionId: number, addressObj: ICrossAccountId): Promise<number[]> {1157    return (await this.helper.callRpc('api.rpc.unique.accountTokens', [collectionId, addressObj])).toJSON();1158  }11591160  /**1161   * Get token data1162   *1163   * @param collectionId ID of collection1164   * @param tokenId ID of token1165   * @param propertyKeys optionally filter the token properties to only these keys1166   * @param blockHashAt optionally query the data at some block with this hash1167   * @example getToken(10, 5);1168   * @returns human readable token data1169   */1170  async getToken(collectionId: number, tokenId: number, propertyKeys: string[] = [], blockHashAt?: string): Promise<{1171    properties: IProperty[];1172    owner: CrossAccountId;1173    normalizedOwner: CrossAccountId;1174  }| null> {1175    let tokenData;1176    if(typeof blockHashAt === 'undefined') {1177      tokenData = await this.helper.callRpc('api.rpc.unique.tokenData', [collectionId, tokenId]);1178    }1179    else {1180      if(propertyKeys.length == 0) {1181        const collection = (await this.helper.callRpc('api.rpc.unique.collectionById', [collectionId])).toHuman();1182        if(!collection) return null;1183        propertyKeys = collection.tokenPropertyPermissions.map((x: ITokenPropertyPermission) => x.key);1184      }1185      tokenData = await this.helper.callRpc('api.rpc.unique.tokenData', [collectionId, tokenId, propertyKeys, blockHashAt]);1186    }1187    tokenData = tokenData.toHuman();1188    if (tokenData === null || tokenData.owner === null) return null;1189    const owner = {} as any;1190    for (const key of Object.keys(tokenData.owner)) {1191      owner[key.toLocaleLowerCase()] = key.toLocaleLowerCase() == 'substrate' 1192        ? CrossAccountId.normalizeSubstrateAddress(tokenData.owner[key]) 1193        : tokenData.owner[key];1194    }1195    tokenData.normalizedOwner = CrossAccountId.fromLowerCaseKeys(owner);1196    return tokenData;1197  }11981199  /**1200   * Set permissions to change token properties1201   *1202   * @param signer keyring of signer1203   * @param collectionId ID of collection1204   * @param permissions permissions to change a property by the collection admin or token owner1205   * @example setTokenPropertyPermissions(1206   *   aliceKeyring, 10, [{key: "gender", permission: {tokenOwner: true, mutable: true, collectionAdmin: true}}]1207   * )1208   * @returns true if extrinsic success otherwise false1209   */1210  async setTokenPropertyPermissions(signer: TSigner, collectionId: number, permissions: ITokenPropertyPermission[]): Promise<boolean> {1211    const result = await this.helper.executeExtrinsic(1212      signer,1213      'api.tx.unique.setTokenPropertyPermissions', [collectionId, permissions],1214      true,1215    );12161217    return this.helper.util.findCollectionInEvents(result.result.events, collectionId, 'common', 'PropertyPermissionSet');1218  }12191220  /**1221   * Get token property permissions.1222   * 1223   * @param collectionId ID of collection1224   * @param propertyKeys optionally filter the returned property permissions to only these keys1225   * @example getPropertyPermissions(1219, ['location', 'date', 'time', 'isParadise']);1226   * @returns array of key-permission pairs1227   */1228  async getPropertyPermissions(collectionId: number, propertyKeys: string[] | null = null): Promise<ITokenPropertyPermission[]> {1229    return (await this.helper.callRpc('api.rpc.unique.propertyPermissions', [collectionId, ...(propertyKeys === null ? [] : [propertyKeys])])).toHuman();1230  }12311232  /**1233   * Set token properties1234   *1235   * @param signer keyring of signer1236   * @param collectionId ID of collection1237   * @param tokenId ID of token1238   * @param properties key-value pairs of metadata which to add to a token. Keys must be permitted in the collection1239   * @example setTokenProperties(aliceKeyring, 10, 5, [{key: "gender", value: "female"}, {key: "age", value: "23"}])1240   * @returns ```true``` if extrinsic success, otherwise ```false```1241   */1242  async setTokenProperties(signer: TSigner, collectionId: number, tokenId: number, properties: IProperty[]): Promise<boolean> {1243    const result = await this.helper.executeExtrinsic(1244      signer,1245      'api.tx.unique.setTokenProperties', [collectionId, tokenId, properties],1246      true,1247    );12481249    return this.helper.util.findCollectionInEvents(result.result.events, collectionId, 'common', 'TokenPropertySet');1250  }12511252  /**1253   * Get properties, metadata assigned to a token.1254   * 1255   * @param collectionId ID of collection1256   * @param tokenId ID of token1257   * @param propertyKeys optionally filter the returned properties to only these keys1258   * @example getTokenProperties(1219, ['location', 'date', 'time', 'isParadise']);1259   * @returns array of key-value pairs1260   */1261  async getTokenProperties(collectionId: number, tokenId: number, propertyKeys?: string[] | null): Promise<IProperty[]> {1262    return (await this.helper.callRpc('api.rpc.unique.tokenProperties', [collectionId, tokenId, propertyKeys])).toHuman();1263  }12641265  /**1266   * Delete the provided properties of a token1267   * @param signer keyring of signer1268   * @param collectionId ID of collection1269   * @param tokenId ID of token1270   * @param propertyKeys property keys to be deleted1271   * @example deleteTokenProperties(aliceKeyring, 10, 5, ["gender", "age"])1272   * @returns ```true``` if extrinsic success, otherwise ```false```1273   */1274  async deleteTokenProperties(signer: TSigner, collectionId: number, tokenId: number, propertyKeys: string[]): Promise<boolean> {1275    const result = await this.helper.executeExtrinsic(1276      signer,1277      'api.tx.unique.deleteTokenProperties', [collectionId, tokenId, propertyKeys],1278      true,1279    );12801281    return this.helper.util.findCollectionInEvents(result.result.events, collectionId, 'common', 'TokenPropertyDeleted');1282  }12831284  /**1285   * Mint new collection1286   *1287   * @param signer keyring of signer1288   * @param collectionOptions basic collection options and properties1289   * @param mode NFT or RFT type of a collection1290   * @example mintCollection(aliceKeyring, {name: 'New', description: "New collection", tokenPrefix: "NEW"}, "NFT")1291   * @returns object of the created collection1292   */1293  async mintCollection(signer: TSigner, collectionOptions: ICollectionCreationOptions, mode: 'NFT' | 'RFT'): Promise<UniqueBaseCollection> {1294    collectionOptions = JSON.parse(JSON.stringify(collectionOptions)) as ICollectionCreationOptions; // Clone object1295    collectionOptions.mode = (mode === 'NFT') ? {nft: null} : {refungible: null};1296    for (const key of ['name', 'description', 'tokenPrefix']) {1297      if (typeof collectionOptions[key as 'name' | 'description' | 'tokenPrefix'] === 'string') collectionOptions[key as 'name' | 'description' | 'tokenPrefix'] = this.helper.util.str2vec(collectionOptions[key as 'name' | 'description' | 'tokenPrefix'] as string);1298    }1299    const creationResult = await this.helper.executeExtrinsic(1300      signer,1301      'api.tx.unique.createCollectionEx', [collectionOptions],1302      true, // errorLabel,1303    );1304    return this.getCollectionObject(this.helper.util.extractCollectionIdFromCreationResult(creationResult));1305  }13061307  getCollectionObject(_collectionId: number): any {1308    return null;1309  }13101311  getTokenObject(_collectionId: number, _tokenId: number): any {1312    return null;1313  }1314}131513161317class NFTGroup extends NFTnRFT {1318  /**1319   * Get collection object1320   * @param collectionId ID of collection1321   * @example getCollectionObject(2);1322   * @returns instance of UniqueNFTCollection1323   */1324  getCollectionObject(collectionId: number): UniqueNFTCollection {1325    return new UniqueNFTCollection(collectionId, this.helper);1326  }13271328  /**1329   * Get token object1330   * @param collectionId ID of collection1331   * @param tokenId ID of token1332   * @example getTokenObject(10, 5);1333   * @returns instance of UniqueNFTToken1334   */1335  getTokenObject(collectionId: number, tokenId: number): UniqueNFToken {1336    return new UniqueNFToken(tokenId, this.getCollectionObject(collectionId));1337  }13381339  /**1340   * Get token's owner1341   * @param collectionId ID of collection1342   * @param tokenId ID of token1343   * @param blockHashAt optionally query the data at the block with this hash1344   * @example getTokenOwner(10, 5);1345   * @returns Address in CrossAccountId format, e.g. {Substrate: "5DnSF6RRjwteE3BrCj..."}1346   */1347  async getTokenOwner(collectionId: number, tokenId: number, blockHashAt?: string): Promise<CrossAccountId> {1348    let owner;1349    if (typeof blockHashAt === 'undefined') {1350      owner = await this.helper.callRpc('api.rpc.unique.tokenOwner', [collectionId, tokenId]);1351    } else {1352      owner = await this.helper.callRpc('api.rpc.unique.tokenOwner', [collectionId, tokenId, blockHashAt]);1353    }1354    return CrossAccountId.fromLowerCaseKeys(owner.toJSON());1355  }13561357  /**1358   * Is token approved to transfer1359   * @param collectionId ID of collection1360   * @param tokenId ID of token1361   * @param toAccountObj address to be approved1362   * @returns ```true``` if extrinsic success, otherwise ```false```1363   */1364  async isTokenApproved(collectionId: number, tokenId: number, toAccountObj: ICrossAccountId): Promise<boolean> {1365    return (await this.getTokenApprovedPieces(collectionId, tokenId, toAccountObj, await this.getTokenOwner(collectionId, tokenId))) === 1n;1366  }13671368  /**1369   * Changes the owner of the token.1370   *1371   * @param signer keyring of signer1372   * @param collectionId ID of collection1373   * @param tokenId ID of token1374   * @param addressObj address of a new owner1375   * @example transferToken(aliceKeyring, 10, 5, {Substrate: "5DyN4Y92vZCjv38fg..."})1376   * @returns ```true``` if extrinsic success, otherwise ```false```1377   */1378  async transferToken(signer: TSigner, collectionId: number, tokenId: number, addressObj: ICrossAccountId): Promise<boolean> {1379    return await super.transferToken(signer, collectionId, tokenId, addressObj, 1n);1380  }13811382  /**1383   *1384   * Change ownership of a NFT on behalf of the owner.1385   *1386   * @param signer keyring of signer1387   * @param collectionId ID of collection1388   * @param tokenId ID of token1389   * @param fromAddressObj address on behalf of which the token will be sent1390   * @param toAddressObj new token owner1391   * @example transferTokenFrom(aliceKeyring, 10, 5, {Substrate: "5DyN4Y92vZCjv38fg..."}, {Ethereum: "0x9F0583DbB85..."})1392   * @returns ```true``` if extrinsic success, otherwise ```false```1393   */1394  async transferTokenFrom(signer: TSigner, collectionId: number, tokenId: number, fromAddressObj: ICrossAccountId, toAddressObj: ICrossAccountId): Promise<boolean> {1395    return await super.transferTokenFrom(signer, collectionId, tokenId, fromAddressObj, toAddressObj, 1n);1396  }13971398  /**1399   * Recursively find the address that owns the token1400   * @param collectionId ID of collection1401   * @param tokenId ID of token1402   * @param blockHashAt1403   * @example getTokenTopmostOwner(10, 5);1404   * @returns address in CrossAccountId format, e.g. {Substrate: "5DyN4Y92vZCjv38fg..."}1405   */1406  async getTokenTopmostOwner(collectionId: number, tokenId: number, blockHashAt?: string): Promise<CrossAccountId | null> {1407    let owner;1408    if (typeof blockHashAt === 'undefined') {1409      owner = await this.helper.callRpc('api.rpc.unique.topmostTokenOwner', [collectionId, tokenId]);1410    } else {1411      owner = await this.helper.callRpc('api.rpc.unique.topmostTokenOwner', [collectionId, tokenId, blockHashAt]);1412    }14131414    if (owner === null) return null;14151416    return owner.toHuman();1417  }14181419  /**1420   * Get tokens nested in the provided token1421   * @param collectionId ID of collection1422   * @param tokenId ID of token1423   * @param blockHashAt optionally query the data at the block with this hash1424   * @example getTokenChildren(10, 5);1425   * @returns tokens whose depth of nesting is <= 51426   */1427  async getTokenChildren(collectionId: number, tokenId: number, blockHashAt?: string): Promise<IToken[]> {1428    let children;1429    if(typeof blockHashAt === 'undefined') {1430      children = await this.helper.callRpc('api.rpc.unique.tokenChildren', [collectionId, tokenId]);1431    } else {1432      children = await this.helper.callRpc('api.rpc.unique.tokenChildren', [collectionId, tokenId, blockHashAt]);1433    }14341435    return children.toJSON().map((x: any) => {1436      return {collectionId: x.collection, tokenId: x.token};1437    });1438  }14391440  /**1441   * Nest one token into another1442   * @param signer keyring of signer1443   * @param tokenObj token to be nested1444   * @param rootTokenObj token to be parent1445   * @example nestToken(aliceKeyring, {collectionId: 10, tokenId: 5}, {collectionId: 10, tokenId: 4});1446   * @returns ```true``` if extrinsic success, otherwise ```false```1447   */1448  async nestToken(signer: TSigner, tokenObj: IToken, rootTokenObj: IToken): Promise<boolean> {1449    const rootTokenAddress = this.helper.util.getTokenAccount(rootTokenObj);1450    const result = await this.transferToken(signer, tokenObj.collectionId, tokenObj.tokenId, rootTokenAddress);1451    if(!result) {1452      throw Error('Unable to nest token!');1453    }1454    return result;1455  }14561457  /**1458   * Remove token from nested state1459   * @param signer keyring of signer1460   * @param tokenObj token to unnest1461   * @param rootTokenObj parent of a token1462   * @param toAddressObj address of a new token owner1463   * @example unnestToken(aliceKeyring, {collectionId: 10, tokenId: 5}, {collectionId: 10, tokenId: 4}, {Substrate: "5DyN4Y92vZCjv38fg..."});1464   * @returns ```true``` if extrinsic success, otherwise ```false```1465   */1466  async unnestToken(signer: TSigner, tokenObj: IToken, rootTokenObj: IToken, toAddressObj: ICrossAccountId): Promise<boolean> {1467    const rootTokenAddress = this.helper.util.getTokenAccount(rootTokenObj);1468    const result = await this.transferTokenFrom(signer, tokenObj.collectionId, tokenObj.tokenId, rootTokenAddress, toAddressObj);1469    if(!result) {1470      throw Error('Unable to unnest token!');1471    }1472    return result;1473  }14741475  /**1476   * Mint new collection1477   * @param signer keyring of signer1478   * @param collectionOptions Collection options1479   * @example1480   * mintCollection(aliceKeyring, {1481   *   name: 'New',1482   *   description: 'New collection',1483   *   tokenPrefix: 'NEW',1484   * })1485   * @returns object of the created collection1486   */1487  async mintCollection(signer: TSigner, collectionOptions: ICollectionCreationOptions = {}): Promise<UniqueNFTCollection> {1488    return await super.mintCollection(signer, collectionOptions, 'NFT') as UniqueNFTCollection;1489  }14901491  /**1492   * Mint new token1493   * @param signer keyring of signer1494   * @param data token data1495   * @returns created token object1496   */1497  async mintToken(signer: TSigner, data: { collectionId: number; owner: ICrossAccountId | string; properties?: IProperty[]; }): Promise<UniqueNFToken> {1498    const creationResult = await this.helper.executeExtrinsic(1499      signer,1500      'api.tx.unique.createItem', [data.collectionId, (typeof data.owner === 'string') ? {Substrate: data.owner} : data.owner, {1501        nft: {1502          properties: data.properties,1503        },1504      }],1505      true,1506    );1507    const createdTokens = this.helper.util.extractTokensFromCreationResult(creationResult);1508    if (createdTokens.tokens.length > 1) throw Error('Minted multiple tokens');1509    if (createdTokens.tokens.length < 1) throw Error('No tokens minted');1510    return this.getTokenObject(data.collectionId, createdTokens.tokens[0].tokenId);1511  }15121513  /**1514   * Mint multiple NFT tokens1515   * @param signer keyring of signer1516   * @param collectionId ID of collection1517   * @param tokens array of tokens with owner and properties1518   * @example1519   * mintMultipleTokens(aliceKeyring, 10, [{1520   *     owner: {Substrate: "5DyN4Y92vZCjv38fg..."},1521   *     properties: [{key: "gender", value: "male"},{key: "age", value: "45"}],1522   *   },{1523   *     owner: {Ethereum: "0x9F0583DbB855d..."},1524   *     properties: [{key: "gender", value: "female"},{key: "age", value: "22"}],1525   * }]);1526   * @returns ```true``` if extrinsic success, otherwise ```false```1527   */1528  async mintMultipleTokens(signer: TSigner, collectionId: number, tokens: {owner: ICrossAccountId, properties?: IProperty[]}[]): Promise<UniqueNFToken[]> {1529    const creationResult = await this.helper.executeExtrinsic(1530      signer,1531      'api.tx.unique.createMultipleItemsEx', [collectionId, {NFT: tokens}],1532      true,1533    );1534    const collection = this.getCollectionObject(collectionId);1535    return this.helper.util.extractTokensFromCreationResult(creationResult).tokens.map((x: IToken) => collection.getTokenObject(x.tokenId));1536  }15371538  /**1539   * Mint multiple NFT tokens with one owner1540   * @param signer keyring of signer1541   * @param collectionId ID of collection1542   * @param owner tokens owner1543   * @param tokens array of tokens with owner and properties1544   * @example1545   * mintMultipleTokensWithOneOwner(aliceKeyring, 10, "5DyN4Y92vZCjv38fg...", [{1546   *   properties: [{1547   *   key: "gender",1548   *   value: "female",1549   *  },{1550   *   key: "age",1551   *   value: "33",1552   *  }],1553   * }]);1554   * @returns array of newly created tokens1555   */1556  async mintMultipleTokensWithOneOwner(signer: TSigner, collectionId: number, owner: ICrossAccountId, tokens: {properties?: IProperty[]}[]): Promise<UniqueNFToken[]> {1557    const rawTokens = [];1558    for (const token of tokens) {1559      const raw = {NFT: {properties: token.properties}};1560      rawTokens.push(raw);1561    }1562    const creationResult = await this.helper.executeExtrinsic(1563      signer,1564      'api.tx.unique.createMultipleItems', [collectionId, owner, rawTokens],1565      true,1566    );1567    const collection = this.getCollectionObject(collectionId);1568    return this.helper.util.extractTokensFromCreationResult(creationResult).tokens.map((x: IToken) => collection.getTokenObject(x.tokenId));1569  }15701571  /**1572   * Set, change, or remove approved address to transfer the ownership of the NFT.1573   *1574   * @param signer keyring of signer1575   * @param collectionId ID of collection1576   * @param tokenId ID of token1577   * @param toAddressObj address to approve1578   * @example approveToken(aliceKeyring, 10, 5, {Substrate: "5DyN4Y92vZCjv38fg..."})1579   * @returns ```true``` if extrinsic success, otherwise ```false```1580   */1581  async approveToken(signer: IKeyringPair, collectionId: number, tokenId: number, toAddressObj: ICrossAccountId) {1582    return super.approveToken(signer, collectionId, tokenId, toAddressObj, 1n);1583  }1584}158515861587class RFTGroup extends NFTnRFT {1588  /**1589   * Get collection object1590   * @param collectionId ID of collection1591   * @example getCollectionObject(2);1592   * @returns instance of UniqueRFTCollection1593   */1594  getCollectionObject(collectionId: number): UniqueRFTCollection {1595    return new UniqueRFTCollection(collectionId, this.helper);1596  }15971598  /**1599   * Get token object1600   * @param collectionId ID of collection1601   * @param tokenId ID of token1602   * @example getTokenObject(10, 5);1603   * @returns instance of UniqueNFTToken1604   */1605  getTokenObject(collectionId: number, tokenId: number): UniqueRFToken {1606    return new UniqueRFToken(tokenId, this.getCollectionObject(collectionId));1607  }16081609  /**1610   * Get top 10 token owners with the largest number of pieces1611   * @param collectionId ID of collection1612   * @param tokenId ID of token1613   * @example getTokenTop10Owners(10, 5);1614   * @returns array of top 10 owners1615   */1616  async getTokenTop10Owners(collectionId: number, tokenId: number): Promise<CrossAccountId[]> {1617    return (await this.helper.callRpc('api.rpc.unique.tokenOwners', [collectionId, tokenId])).toJSON().map(CrossAccountId.fromLowerCaseKeys);1618  }16191620  /**1621   * Get number of pieces owned by address1622   * @param collectionId ID of collection1623   * @param tokenId ID of token1624   * @param addressObj address token owner1625   * @example getTokenBalance(10, 5, {Substrate: "5DyN4Y92vZCjv38fg..."});1626   * @returns number of pieces ownerd by address1627   */1628  async getTokenBalance(collectionId: number, tokenId: number, addressObj: ICrossAccountId): Promise<bigint> {1629    return (await this.helper.callRpc('api.rpc.unique.balance', [collectionId, addressObj, tokenId])).toBigInt();1630  }16311632  /**1633   * Transfer pieces of token to another address1634   * @param signer keyring of signer1635   * @param collectionId ID of collection1636   * @param tokenId ID of token1637   * @param addressObj address of a new owner1638   * @param amount number of pieces to be transfered1639   * @example transferTokenFrom(aliceKeyring, 10, 5, {Substrate: "5DyN4Y92vZCjv38fg..."}, 2000n)1640   * @returns ```true``` if extrinsic success, otherwise ```false```1641   */1642  async transferToken(signer: TSigner, collectionId: number, tokenId: number, addressObj: ICrossAccountId, amount=1n): Promise<boolean> {1643    return await super.transferToken(signer, collectionId, tokenId, addressObj, amount);1644  }16451646  /**1647   * Change ownership of some pieces of RFT on behalf of the owner.1648   * @param signer keyring of signer1649   * @param collectionId ID of collection1650   * @param tokenId ID of token1651   * @param fromAddressObj address on behalf of which the token will be sent1652   * @param toAddressObj new token owner1653   * @param amount number of pieces to be transfered1654   * @example transferTokenFrom(aliceKeyring, 10, 5, {Substrate: "5DyN4Y92vZCjv38fg..."}, {Substrate: "5DfhbVfww7ThF8q6f3i..."}, 2000n)1655   * @returns ```true``` if extrinsic success, otherwise ```false```1656   */1657  async transferTokenFrom(signer: TSigner, collectionId: number, tokenId: number, fromAddressObj: ICrossAccountId, toAddressObj: ICrossAccountId, amount=1n): Promise<boolean> {1658    return await super.transferTokenFrom(signer, collectionId, tokenId, fromAddressObj, toAddressObj, amount);1659  }16601661  /**1662   * Mint new collection1663   * @param signer keyring of signer1664   * @param collectionOptions Collection options1665   * @example1666   * mintCollection(aliceKeyring, {1667   *   name: 'New',1668   *   description: 'New collection',1669   *   tokenPrefix: 'NEW',1670   * })1671   * @returns object of the created collection1672   */1673  async mintCollection(signer: TSigner, collectionOptions: ICollectionCreationOptions = {}): Promise<UniqueRFTCollection> {1674    return await super.mintCollection(signer, collectionOptions, 'RFT') as UniqueRFTCollection;1675  }16761677  /**1678   * Mint new token1679   * @param signer keyring of signer1680   * @param data token data1681   * @example mintToken(aliceKeyring, {collectionId: 10, owner: {Substrate: '5GHoZe9c73RYbVzq...'}, pieces: 10000n});1682   * @returns created token object1683   */1684  async mintToken(signer: TSigner, data: { collectionId: number; owner: ICrossAccountId | string; pieces: bigint; properties?: IProperty[]; }): Promise<UniqueRFToken> {1685    const creationResult = await this.helper.executeExtrinsic(1686      signer,1687      'api.tx.unique.createItem', [data.collectionId, (typeof data.owner === 'string') ? {Substrate: data.owner} : data.owner, {1688        refungible: {1689          pieces: data.pieces,1690          properties: data.properties,1691        },1692      }],1693      true,1694    );1695    const createdTokens = this.helper.util.extractTokensFromCreationResult(creationResult);1696    if (createdTokens.tokens.length > 1) throw Error('Minted multiple tokens');1697    if (createdTokens.tokens.length < 1) throw Error('No tokens minted');1698    return this.getTokenObject(data.collectionId, createdTokens.tokens[0].tokenId);1699  }17001701  async mintMultipleTokens(signer: TSigner, collectionId: number, tokens: {owner: ICrossAccountId, pieces: bigint, properties?: IProperty[]}[]): Promise<UniqueRFToken[]> {1702    throw Error('Not implemented');1703    const creationResult = await this.helper.executeExtrinsic(1704      signer,1705      'api.tx.unique.createMultipleItemsEx', [collectionId, {RefungibleMultipleOwners: tokens}],1706      true, // `Unable to mint RFT tokens for ${label}`,1707    );1708    const collection = this.getCollectionObject(collectionId);1709    return this.helper.util.extractTokensFromCreationResult(creationResult).tokens.map((x: IToken) => collection.getTokenObject(x.tokenId));1710  }17111712  /**1713   * Mint multiple RFT tokens with one owner1714   * @param signer keyring of signer1715   * @param collectionId ID of collection1716   * @param owner tokens owner1717   * @param tokens array of tokens with properties and pieces1718   * @example mintMultipleTokensWithOneOwner(aliceKeyring, 10, {Substrate: "5GHoZe9c73RYbVzq..."}, [{pieces: 100000n, properties: [{key: "gender", value: "male"}]}]);1719   * @returns array of newly created RFT tokens1720   */1721  async mintMultipleTokensWithOneOwner(signer: TSigner, collectionId: number, owner: ICrossAccountId, tokens: {pieces: bigint, properties?: IProperty[]}[]): Promise<UniqueRFToken[]> {1722    const rawTokens = [];1723    for (const token of tokens) {1724      const raw = {ReFungible: {pieces: token.pieces, properties: token.properties}};1725      rawTokens.push(raw);1726    }1727    const creationResult = await this.helper.executeExtrinsic(1728      signer,1729      'api.tx.unique.createMultipleItems', [collectionId, owner, rawTokens],1730      true,1731    );1732    const collection = this.getCollectionObject(collectionId);1733    return this.helper.util.extractTokensFromCreationResult(creationResult).tokens.map((x: IToken) => collection.getTokenObject(x.tokenId));1734  }17351736  /**1737   * Destroys a concrete instance of RFT.1738   * @param signer keyring of signer1739   * @param collectionId ID of collection1740   * @param tokenId ID of token1741   * @param amount number of pieces to be burnt1742   * @example burnToken(aliceKeyring, 10, 5);1743   * @returns ```true``` if the extrinsic is successful, otherwise ```false```1744   */1745  async burnToken(signer: IKeyringPair, collectionId: number, tokenId: number, amount=1n): Promise<boolean> {1746    return await super.burnToken(signer, collectionId, tokenId, amount);1747  }17481749  /**1750   * Destroys a concrete instance of RFT on behalf of the owner.1751   * @param signer keyring of signer1752   * @param collectionId ID of collection1753   * @param tokenId ID of token1754   * @param fromAddressObj address on behalf of which the token will be burnt1755   * @param amount number of pieces to be burnt1756   * @example burnTokenFrom(aliceKeyring, 10, 5, {Substrate: "5DyN4Y92vZCjv38fg..."}, 2n)1757   * @returns ```true``` if extrinsic success, otherwise ```false```1758   */1759  async burnTokenFrom(signer: IKeyringPair, collectionId: number, tokenId: number, fromAddressObj: ICrossAccountId, amount=1n): Promise<boolean> {1760    return await super.burnTokenFrom(signer, collectionId, tokenId, fromAddressObj, amount);1761  }17621763  /**1764   * Set, change, or remove approved address to transfer the ownership of the RFT.1765   *1766   * @param signer keyring of signer1767   * @param collectionId ID of collection1768   * @param tokenId ID of token1769   * @param toAddressObj address to approve1770   * @param amount number of pieces to be approved1771   * @example approveToken(aliceKeyring, 10, 5, {Substrate: "5GHoZe9c73RYbVzq..."}, "", 10000n);1772   * @returns true if the token success, otherwise false1773   */1774  async approveToken(signer: IKeyringPair, collectionId: number, tokenId: number, toAddressObj: ICrossAccountId, amount=1n) {1775    return super.approveToken(signer, collectionId, tokenId, toAddressObj, amount);1776  }17771778  /**1779   * Get total number of pieces1780   * @param collectionId ID of collection1781   * @param tokenId ID of token1782   * @example getTokenTotalPieces(10, 5);1783   * @returns number of pieces1784   */1785  async getTokenTotalPieces(collectionId: number, tokenId: number): Promise<bigint> {1786    return (await this.helper.callRpc('api.rpc.unique.totalPieces', [collectionId, tokenId])).unwrap().toBigInt();1787  }17881789  /**1790   * Change number of token pieces. Signer must be the owner of all token pieces.1791   * @param signer keyring of signer1792   * @param collectionId ID of collection1793   * @param tokenId ID of token1794   * @param amount new number of pieces1795   * @example repartitionToken(aliceKeyring, 10, 5, 12345n);1796   * @returns true if the repartion was success, otherwise false1797   */1798  async repartitionToken(signer: TSigner, collectionId: number, tokenId: number, amount: bigint): Promise<boolean> {1799    const currentAmount = await this.getTokenTotalPieces(collectionId, tokenId);1800    const repartitionResult = await this.helper.executeExtrinsic(1801      signer,1802      'api.tx.unique.repartition', [collectionId, tokenId, amount],1803      true,1804    );1805    if(currentAmount < amount) return this.helper.util.findCollectionInEvents(repartitionResult.result.events, collectionId, 'common', 'ItemCreated');1806    return this.helper.util.findCollectionInEvents(repartitionResult.result.events, collectionId, 'common', 'ItemDestroyed');1807  }1808}180918101811class FTGroup extends CollectionGroup {1812  /**1813   * Get collection object1814   * @param collectionId ID of collection1815   * @example getCollectionObject(2);1816   * @returns instance of UniqueFTCollection1817   */1818  getCollectionObject(collectionId: number): UniqueFTCollection {1819    return new UniqueFTCollection(collectionId, this.helper);1820  }18211822  /**1823   * Mint new fungible collection1824   * @param signer keyring of signer1825   * @param collectionOptions Collection options1826   * @param decimalPoints number of token decimals1827   * @example1828   * mintCollection(aliceKeyring, {1829   *   name: 'New',1830   *   description: 'New collection',1831   *   tokenPrefix: 'NEW',1832   * }, 18)1833   * @returns newly created fungible collection1834   */1835  async mintCollection(signer: TSigner, collectionOptions: ICollectionCreationOptions = {}, decimalPoints = 0): Promise<UniqueFTCollection> {1836    collectionOptions = JSON.parse(JSON.stringify(collectionOptions)) as ICollectionCreationOptions; // Clone object1837    if(collectionOptions.tokenPropertyPermissions) throw Error('Fungible collections has no tokenPropertyPermissions');1838    collectionOptions.mode = {fungible: decimalPoints};1839    for (const key of ['name', 'description', 'tokenPrefix']) {1840      if (typeof collectionOptions[key as 'name' | 'description' | 'tokenPrefix'] === 'string') collectionOptions[key as 'name' | 'description' | 'tokenPrefix'] = this.helper.util.str2vec(collectionOptions[key as 'name' | 'description' | 'tokenPrefix'] as string);1841    }1842    const creationResult = await this.helper.executeExtrinsic(1843      signer,1844      'api.tx.unique.createCollectionEx', [collectionOptions],1845      true,1846    );1847    return this.getCollectionObject(this.helper.util.extractCollectionIdFromCreationResult(creationResult));1848  }18491850  /**1851   * Mint tokens1852   * @param signer keyring of signer1853   * @param collectionId ID of collection1854   * @param owner address owner of new tokens1855   * @param amount amount of tokens to be meanted1856   * @example mintTokens(aliceKeyring, 10, {Substrate: "5GHoZe9c73RYbVzq"}, 1000n);1857   * @returns ```true``` if extrinsic success, otherwise ```false```1858   */1859  async mintTokens(signer: TSigner, collectionId: number, amount: bigint, owner: ICrossAccountId | string): Promise<boolean> {1860    const creationResult = await this.helper.executeExtrinsic(1861      signer,1862      'api.tx.unique.createItem', [collectionId, (typeof owner === 'string') ? {Substrate: owner} : owner, {1863        fungible: {1864          value: amount,1865        },1866      }],1867      true, // `Unable to mint fungible tokens for ${label}`,1868    );1869    return this.helper.util.findCollectionInEvents(creationResult.result.events, collectionId, 'common', 'ItemCreated');1870  }18711872  /**1873   * Mint multiple Fungible tokens with one owner1874   * @param signer keyring of signer1875   * @param collectionId ID of collection1876   * @param owner tokens owner1877   * @param tokens array of tokens with properties and pieces1878   * @returns ```true``` if extrinsic success, otherwise ```false```1879   */1880  async mintMultipleTokensWithOneOwner(signer: TSigner, collectionId: number, tokens: {value: bigint}[], owner: ICrossAccountId): Promise<boolean> {1881    const rawTokens = [];1882    for (const token of tokens) {1883      const raw = {Fungible: {Value: token.value}};1884      rawTokens.push(raw);1885    }1886    const creationResult = await this.helper.executeExtrinsic(1887      signer,1888      'api.tx.unique.createMultipleItems', [collectionId, owner, rawTokens],1889      true,1890    );1891    return this.helper.util.findCollectionInEvents(creationResult.result.events, collectionId, 'common', 'ItemCreated');1892  }18931894  /**1895   * Get the top 10 owners with the largest balance for the Fungible collection1896   * @param collectionId ID of collection1897   * @example getTop10Owners(10);1898   * @returns array of ```ICrossAccountId```1899   */1900  async getTop10Owners(collectionId: number): Promise<CrossAccountId[]> {1901    return (await this.helper.callRpc('api.rpc.unique.tokenOwners', [collectionId, 0])).toJSON().map(CrossAccountId.fromLowerCaseKeys);1902  }19031904  /**1905   * Get account balance1906   * @param collectionId ID of collection1907   * @param addressObj address of owner1908   * @example getBalance(10, {Substrate: "5GHoZe9c73RYbVzq..."})1909   * @returns amount of fungible tokens owned by address1910   */1911  async getBalance(collectionId: number, addressObj: ICrossAccountId): Promise<bigint> {1912    return (await this.helper.callRpc('api.rpc.unique.balance', [collectionId, addressObj, 0])).toBigInt();1913  }19141915  /**1916   * Transfer tokens to address1917   * @param signer keyring of signer1918   * @param collectionId ID of collection1919   * @param toAddressObj address recipient1920   * @param amount amount of tokens to be sent1921   * @example transfer(aliceKeyring, 10, {Substrate: "5GHoZe9c73RYbVzq..."}, 1000n);1922   * @returns ```true``` if extrinsic success, otherwise ```false```1923   */1924  async transfer(signer: TSigner, collectionId: number, toAddressObj: ICrossAccountId, amount=1n) {1925    return await super.transferToken(signer, collectionId, 0, toAddressObj, amount);1926  }19271928  /**1929   * Transfer some tokens on behalf of the owner.1930   * @param signer keyring of signer1931   * @param collectionId ID of collection1932   * @param fromAddressObj address on behalf of which tokens will be sent1933   * @param toAddressObj address where token to be sent1934   * @param amount number of tokens to be sent1935   * @example transferFrom(aliceKeyring, 10, {Substrate: "5GHoZe9c73RYbVzq..."}, {Substrate: "5DfhbVfww7ThF8q6f3ij..."}, 10000n);1936   * @returns ```true``` if extrinsic success, otherwise ```false```1937   */1938  async transferFrom(signer: TSigner, collectionId: number, fromAddressObj: ICrossAccountId, toAddressObj: ICrossAccountId, amount=1n) {1939    return await super.transferTokenFrom(signer, collectionId, 0, fromAddressObj, toAddressObj, amount);1940  }19411942  /**1943   * Destroy some amount of tokens1944   * @param signer keyring of signer1945   * @param collectionId ID of collection1946   * @param amount amount of tokens to be destroyed1947   * @example burnTokens(aliceKeyring, 10, 1000n);1948   * @returns ```true``` if extrinsic success, otherwise ```false```1949   */1950  async burnTokens(signer: IKeyringPair, collectionId: number, amount=1n): Promise<boolean> {1951    return await super.burnToken(signer, collectionId, 0, amount);1952  }19531954  /**1955   * Burn some tokens on behalf of the owner.1956   * @param signer keyring of signer1957   * @param collectionId ID of collection1958   * @param fromAddressObj address on behalf of which tokens will be burnt1959   * @param amount amount of tokens to be burnt1960   * @example burnTokensFrom(aliceKeyring, 10, {Substrate: "5GHoZe9c73RYbVzq..."}, 1000n);1961   * @returns ```true``` if extrinsic success, otherwise ```false```1962   */1963  async burnTokensFrom(signer: IKeyringPair, collectionId: number, fromAddressObj: ICrossAccountId, amount=1n): Promise<boolean> {1964    return await super.burnTokenFrom(signer, collectionId, 0, fromAddressObj, amount);1965  }19661967  /**1968   * Get total collection supply1969   * @param collectionId1970   * @returns1971   */1972  async getTotalPieces(collectionId: number): Promise<bigint> {1973    return (await this.helper.callRpc('api.rpc.unique.totalPieces', [collectionId, 0])).unwrap().toBigInt();1974  }19751976  /**1977   * Set, change, or remove approved address to transfer tokens.1978   *1979   * @param signer keyring of signer1980   * @param collectionId ID of collection1981   * @param toAddressObj address to be approved1982   * @param amount amount of tokens to be approved1983   * @example approveTokens(aliceKeyring, 10, {Substrate: "5GHoZe9c73RYbVzq..."}, 1000n)1984   * @returns ```true``` if extrinsic success, otherwise ```false```1985   */1986  async approveTokens(signer: IKeyringPair, collectionId: number, toAddressObj: ICrossAccountId, amount=1n) {1987    return super.approveToken(signer, collectionId, 0, toAddressObj, amount);1988  }19891990  /**1991   * Get amount of fungible tokens approved to transfer1992   * @param collectionId ID of collection1993   * @param fromAddressObj owner of tokens1994   * @param toAddressObj the address approved for the transfer of tokens on behalf of the owner1995   * @returns number of tokens approved for the transfer1996   */1997  async getApprovedTokens(collectionId: number, fromAddressObj: ICrossAccountId, toAddressObj: ICrossAccountId) {1998    return super.getTokenApprovedPieces(collectionId, 0, toAddressObj, fromAddressObj);1999  }2000}200120022003class ChainGroup extends HelperGroup {2004  /**2005   * Get system properties of a chain2006   * @example getChainProperties();2007   * @returns ss58Format, token decimals, and token symbol2008   */2009  getChainProperties(): IChainProperties {2010    const properties = (this.helper.getApi() as any).registry.getChainProperties().toJSON();2011    return {2012      ss58Format: properties.ss58Format.toJSON(),2013      tokenDecimals: properties.tokenDecimals.toJSON(),2014      tokenSymbol: properties.tokenSymbol.toJSON(),2015    };2016  }20172018  /**2019   * Get chain header2020   * @example getLatestBlockNumber();2021   * @returns the number of the last block2022   */2023  async getLatestBlockNumber(): Promise<number> {2024    return (await this.helper.callRpc('api.rpc.chain.getHeader')).number.toNumber();2025  }20262027  /**2028   * Get block hash by block number2029   * @param blockNumber number of block2030   * @example getBlockHashByNumber(12345);2031   * @returns hash of a block2032   */2033  async getBlockHashByNumber(blockNumber: number): Promise<string | null> {2034    const blockHash = (await this.helper.callRpc('api.rpc.chain.getBlockHash', [blockNumber])).toJSON();2035    if(blockHash === '0x0000000000000000000000000000000000000000000000000000000000000000') return null;2036    return blockHash;2037  }20382039  // TODO add docs2040  async getBlock(blockHashOrNumber: string | number): Promise<IBlock | null> {2041    const blockHash = typeof blockHashOrNumber === 'string' ? blockHashOrNumber : await this.getBlockHashByNumber(blockHashOrNumber);2042    if (!blockHash) return null;2043    return (await this.helper.callRpc('api.rpc.chain.getBlock', [blockHash])).toHuman().block;2044  }20452046  /**2047   * Get account nonce2048   * @param address substrate address2049   * @example getNonce("5GrwvaEF5zXb26Fz...");2050   * @returns number, account's nonce2051   */2052  async getNonce(address: TSubstrateAccount): Promise<number> {2053    return (await this.helper.callRpc('api.query.system.account', [address])).nonce.toNumber();2054  }2055}205620572058class BalanceGroup extends HelperGroup {2059  getCollectionCreationPrice(): bigint {2060    return 2n * this.helper.balance.getOneTokenNominal();2061  }2062  /**2063   * Representation of the native token in the smallest unit - one OPAL (OPL), QUARTZ (QTZ), or UNIQUE (UNQ).2064   * @example getOneTokenNominal()2065   * @returns ```BigInt``` representation of the native token in the smallest unit, e.g. ```1_000_000_000_000_000_000n``` for QTZ.2066   */2067  getOneTokenNominal(): bigint {2068    const chainProperties = this.helper.chain.getChainProperties();2069    return 10n ** BigInt((chainProperties.tokenDecimals || [18])[0]);2070  }20712072  /**2073   * Get substrate address balance2074   * @param address substrate address2075   * @example getSubstrate("5GrwvaEF5zXb26Fz...")2076   * @returns amount of tokens on address2077   */2078  async getSubstrate(address: TSubstrateAccount): Promise<bigint> {2079    return (await this.helper.callRpc('api.query.system.account', [address])).data.free.toBigInt();2080  }20812082  /**2083   * Get full substrate balance including free, miscFrozen, feeFrozen, and reserved2084   * @param address substrate address2085   * @returns2086   */2087  async getSubstrateFull(address: TSubstrateAccount): Promise<ISubstrateBalance> {2088    const accountInfo = (await this.helper.callRpc('api.query.system.account', [address])).data;2089    return {free: accountInfo.free.toBigInt(), miscFrozen: accountInfo.miscFrozen.toBigInt(), feeFrozen: accountInfo.feeFrozen.toBigInt(), reserved: accountInfo.reserved.toBigInt()};2090  }20912092  /**2093   * Get ethereum address balance2094   * @param address ethereum address2095   * @example getEthereum("0x9F0583DbB855d...")2096   * @returns amount of tokens on address2097   */2098  async getEthereum(address: TEthereumAccount): Promise<bigint> {2099    return (await this.helper.callRpc('api.rpc.eth.getBalance', [address])).toBigInt();2100  }21012102  /**2103   * Transfer tokens to substrate address2104   * @param signer keyring of signer2105   * @param address substrate address of a recipient2106   * @param amount amount of tokens to be transfered2107   * @example transferToSubstrate(aliceKeyring, "5GrwvaEF5zXb26Fz...", 100_000_000_000n);2108   * @returns ```true``` if extrinsic success, otherwise ```false```2109   */2110  async transferToSubstrate(signer: TSigner, address: TSubstrateAccount, amount: bigint | string): Promise<boolean> {2111    const result = await this.helper.executeExtrinsic(signer, 'api.tx.balances.transfer', [address, amount], true/*, `Unable to transfer balance from ${this.helper.getSignerAddress(signer)} to ${address}`*/);21122113    let transfer = {from: null, to: null, amount: 0n} as any;2114    result.result.events.forEach(({event: {data, method, section}}) => {2115      if ((section === 'balances') && (method === 'Transfer')) {2116        transfer = {2117          from: this.helper.address.normalizeSubstrate(data[0]),2118          to: this.helper.address.normalizeSubstrate(data[1]),2119          amount: BigInt(data[2]),2120        };2121      }2122    });2123    const isSuccess = this.helper.address.normalizeSubstrate(typeof signer === 'string' ? signer : signer.address) === transfer.from 2124      && this.helper.address.normalizeSubstrate(address) === transfer.to 2125      && BigInt(amount) === transfer.amount;2126    return isSuccess;2127  }2128}212921302131class AddressGroup extends HelperGroup {2132  /**2133   * Normalizes the address to the specified ss58 format, by default ```42```.2134   * @param address substrate address2135   * @param ss58Format format for address conversion, by default ```42```2136   * @example normalizeSubstrate("unjKJQJrRd238pkUZZvzDQrfKuM39zBSnQ5zjAGAGcdRhaJTx") // returns 5GrwvaEF5zXb26Fz9rcQpDWS57CtERHpNehXCPcNoHGKutQY2137   * @returns substrate address converted to normalized (i.e., starting with 5) or specified explicitly representation2138   */2139  normalizeSubstrate(address: TSubstrateAccount, ss58Format = 42): TSubstrateAccount {2140    return CrossAccountId.normalizeSubstrateAddress(address, ss58Format);2141  }21422143  /**2144   * Get address in the connected chain format2145   * @param address substrate address2146   * @example normalizeSubstrateToChainFormat("5GrwvaEF5zXb26Fz...") // returns unjKJQJrRd238pkUZZ... for Unique Network2147   * @returns address in chain format2148   */2149  normalizeSubstrateToChainFormat(address: TSubstrateAccount): TSubstrateAccount {2150    return this.normalizeSubstrate(address, this.helper.chain.getChainProperties().ss58Format);2151  }21522153  /**2154   * Get substrate mirror of an ethereum address2155   * @param ethAddress ethereum address2156   * @param toChainFormat false for normalized account2157   * @example ethToSubstrate('0x9F0583DbB855d...')2158   * @returns substrate mirror of a provided ethereum address2159   */2160  ethToSubstrate(ethAddress: TEthereumAccount, toChainFormat=false): TSubstrateAccount {2161    return CrossAccountId.translateEthToSub(ethAddress, toChainFormat ? this.helper.chain.getChainProperties().ss58Format : undefined);2162  }21632164  /**2165   * Get ethereum mirror of a substrate address2166   * @param subAddress substrate account2167   * @example substrateToEth("5DnSF6RRjwteE3BrC...")2168   * @returns ethereum mirror of a provided substrate address2169   */2170  substrateToEth(subAddress: TSubstrateAccount): TEthereumAccount {2171    return CrossAccountId.translateSubToEth(subAddress);2172  }2173}21742175class StakingGroup extends HelperGroup {2176  /**2177   * Stake tokens for App Promotion2178   * @param signer keyring of signer2179   * @param amountToStake amount of tokens to stake2180   * @param label extra label for log2181   * @returns2182   */2183  async stake(signer: TSigner, amountToStake: bigint, label?: string): Promise<boolean> {2184    if(typeof label === 'undefined') label = `${signer.address} amount: ${amountToStake}`;2185    const _stakeResult = await this.helper.executeExtrinsic(2186      signer, 'api.tx.appPromotion.stake',2187      [amountToStake], true,2188    );2189    // TODO extract info from stakeResult2190    return true;2191  }21922193  /**2194   * Unstake tokens for App Promotion2195   * @param signer keyring of signer2196   * @param amountToUnstake amount of tokens to unstake2197   * @param label extra label for log2198   * @returns block number where balances will be unlocked2199   */2200  async unstake(signer: TSigner, label?: string): Promise<number> {2201    if(typeof label === 'undefined') label = `${signer.address}`;2202    const _unstakeResult = await this.helper.executeExtrinsic(2203      signer, 'api.tx.appPromotion.unstake',2204      [], true,2205    );2206    // TODO extract block number fron events2207    return 1;2208  }22092210  /**2211   * Get total staked amount for address2212   * @param address substrate or ethereum address2213   * @returns total staked amount2214   */2215  async getTotalStaked(address?: ICrossAccountId): Promise<bigint> {2216    if (address) return (await this.helper.callRpc('api.rpc.appPromotion.totalStaked', [address])).toBigInt();2217    return (await this.helper.callRpc('api.rpc.appPromotion.totalStaked')).toBigInt();2218  }22192220  /**2221   * Get total staked per block2222   * @param address substrate or ethereum address2223   * @returns array of stakes. `block` – the number of the block in which the stake was made. `amount` - the number of tokens staked in the block2224   */2225  async getTotalStakedPerBlock(address: ICrossAccountId): Promise<IStakingInfo[]> {2226    const rawTotalStakerdPerBlock = await this.helper.callRpc('api.rpc.appPromotion.totalStakedPerBlock', [address]);2227    return rawTotalStakerdPerBlock.map(([block, amount]: any[]) => {2228      return { 2229        block: block.toBigInt(),2230        amount: amount.toBigInt(),2231      };2232    });2233  }22342235  /**2236   * Get total pending unstake amount for address2237   * @param address substrate or ethereum address2238   * @returns total pending unstake amount2239   */2240  async getPendingUnstake(address: ICrossAccountId): Promise<bigint> {2241    return (await this.helper.callRpc('api.rpc.appPromotion.pendingUnstake', [address])).toBigInt();2242  }22432244  /**2245   * Get pending unstake amount per block for address2246   * @param address substrate or ethereum address2247   * @returns array of pending stakes. `block` – the number of the block in which the unstake was made. `amount` - the number of tokens unstaked in the block2248   */2249  async getPendingUnstakePerBlock(address: ICrossAccountId): Promise<IStakingInfo[]> {2250    const rawUnstakedPerBlock = await this.helper.callRpc('api.rpc.appPromotion.pendingUnstakePerBlock', [address]);2251    const result = rawUnstakedPerBlock.map(([block, amount]: any[]) => {2252      return {2253        block: block.toBigInt(),2254        amount: amount.toBigInt(),2255      };2256    });2257    return result;2258  }2259}22602261class SchedulerGroup extends HelperGroup {2262  constructor(helper: UniqueHelper) {2263    super(helper);2264  }22652266  async cancelScheduled(signer: TSigner, scheduledId: string) {2267    return this.helper.executeExtrinsic(2268      signer,2269      'api.tx.scheduler.cancelNamed',2270      [scheduledId],2271      true,2272    );2273  }22742275  async changePriority(signer: TSigner, scheduledId: string, priority: number) {2276    return this.helper.executeExtrinsic(2277      signer,2278      'api.tx.scheduler.changeNamedPriority',2279      [scheduledId, priority],2280      true,2281    );2282  }22832284  scheduleAt<T extends UniqueHelper>(2285    scheduledId: string,2286    executionBlockNumber: number,2287    options: ISchedulerOptions = {},2288  ) {2289    return this.schedule<T>('scheduleNamed', scheduledId, executionBlockNumber, options);2290  }22912292  scheduleAfter<T extends UniqueHelper>(2293    scheduledId: string,2294    blocksBeforeExecution: number,2295    options: ISchedulerOptions = {},2296  ) {2297    return this.schedule<T>('scheduleNamedAfter', scheduledId, blocksBeforeExecution, options);2298  }22992300  schedule<T extends UniqueHelper>(2301    scheduleFn: 'scheduleNamed' | 'scheduleNamedAfter',2302    scheduledId: string,2303    blocksNum: number,2304    options: ISchedulerOptions = {},2305  ) {2306    // eslint-disable-next-line @typescript-eslint/naming-convention2307    const ScheduledHelperType = ScheduledUniqueHelper(this.helper.helperBase);2308    return this.helper.clone(ScheduledHelperType, {2309      scheduleFn,2310      scheduledId,2311      blocksNum,2312      options,2313    }) as T;2314  }2315}23162317export type UniqueHelperConstructor = new(...args: any[]) => UniqueHelper;23182319export class UniqueHelper extends ChainHelperBase {2320  helperBase: any;23212322  chain: ChainGroup;2323  balance: BalanceGroup;2324  address: AddressGroup;2325  collection: CollectionGroup;2326  nft: NFTGroup;2327  rft: RFTGroup;2328  ft: FTGroup;2329  staking: StakingGroup;2330  scheduler: SchedulerGroup;23312332  constructor(logger?: ILogger, options: {[key: string]: any} = {}) {2333    super(logger);23342335    this.helperBase = options.helperBase ?? UniqueHelper;23362337    this.chain = new ChainGroup(this);2338    this.balance = new BalanceGroup(this);2339    this.address = new AddressGroup(this);2340    this.collection = new CollectionGroup(this);2341    this.nft = new NFTGroup(this);2342    this.rft = new RFTGroup(this);2343    this.ft = new FTGroup(this);2344    this.staking = new StakingGroup(this);2345    this.scheduler = new SchedulerGroup(this);2346  }23472348  clone(helperCls: UniqueHelperConstructor, options: {[key: string]: any} = {}) {2349    Object.setPrototypeOf(helperCls.prototype, this);2350    const newHelper = new helperCls(this.logger, options);23512352    newHelper.api = this.api;2353    newHelper.network = this.network;2354    newHelper.forceNetwork = this.forceNetwork;23552356    this.children.push(newHelper);23572358    return newHelper;2359  }23602361  getSudo<T extends UniqueHelper>() {2362    // eslint-disable-next-line @typescript-eslint/naming-convention2363    const SudoHelperType = SudoUniqueHelper(this.helperBase);2364    return this.clone(SudoHelperType) as T;2365  }2366}23672368// eslint-disable-next-line @typescript-eslint/naming-convention2369function ScheduledUniqueHelper<T extends UniqueHelperConstructor>(Base: T) {2370  return class extends Base {2371    scheduleFn: 'scheduleNamed' | 'scheduleNamedAfter';2372    scheduledId: string;2373    blocksNum: number;2374    options: ISchedulerOptions;23752376    constructor(...args: any[]) {2377      const logger = args[0] as ILogger;2378      const options = args[1] as {2379        scheduleFn: 'scheduleNamed' | 'scheduleNamedAfter',2380        scheduledId: string,2381        blocksNum: number,2382        options: ISchedulerOptions2383      };23842385      super(logger);23862387      this.scheduleFn = options.scheduleFn;2388      this.scheduledId = options.scheduledId;2389      this.blocksNum = options.blocksNum;2390      this.options = options.options;2391    }23922393    executeExtrinsic(sender: IKeyringPair, scheduledExtrinsic: string, scheduledParams: any[], expectSuccess?: boolean): Promise<ITransactionResult> {2394      const scheduledTx = this.constructApiCall(scheduledExtrinsic, scheduledParams);2395      const extrinsic = 'api.tx.scheduler.' +  this.scheduleFn;23962397      return super.executeExtrinsic(2398        sender,2399        extrinsic,2400        [2401          this.scheduledId,2402          this.blocksNum,2403          this.options.periodic ? [this.options.periodic.period, this.options.periodic.repetitions] : null,2404          this.options.priority ?? null,2405          {Value: scheduledTx},2406        ],2407        expectSuccess,2408      );2409    }2410  };2411}24122413// eslint-disable-next-line @typescript-eslint/naming-convention2414function SudoUniqueHelper<T extends UniqueHelperConstructor>(Base: T) {2415  return class extends Base {2416    constructor(...args: any[]) {2417      super(...args);2418    }24192420    executeExtrinsic (2421      sender: IKeyringPair,2422      extrinsic: string,2423      params: any[],2424      expectSuccess?: boolean,2425    ): Promise<ITransactionResult> {2426      const call = this.constructApiCall(extrinsic, params);24272428      return super.executeExtrinsic(2429        sender,2430        'api.tx.sudo.sudo',2431        [call],2432        expectSuccess,2433      );2434    }2435  };2436}24372438export class UniqueBaseCollection {2439  helper: UniqueHelper;2440  collectionId: number;24412442  constructor(collectionId: number, uniqueHelper: UniqueHelper) {2443    this.collectionId = collectionId;2444    this.helper = uniqueHelper;2445  }24462447  async getData() {2448    return await this.helper.collection.getData(this.collectionId);2449  }24502451  async getLastTokenId() {2452    return await this.helper.collection.getLastTokenId(this.collectionId);2453  }24542455  async doesTokenExist(tokenId: number) {2456    return await this.helper.collection.doesTokenExist(this.collectionId, tokenId);2457  }24582459  async getAdmins() {2460    return await this.helper.collection.getAdmins(this.collectionId);2461  }24622463  async getAllowList() {2464    return await this.helper.collection.getAllowList(this.collectionId);2465  }24662467  async getEffectiveLimits() {2468    return await this.helper.collection.getEffectiveLimits(this.collectionId);2469  }24702471  async getProperties(propertyKeys?: string[] | null) {2472    return await this.helper.collection.getProperties(this.collectionId, propertyKeys);2473  }24742475  async getTokenNextSponsored(tokenId: number, addressObj: ICrossAccountId) {2476    return await this.helper.collection.getTokenNextSponsored(this.collectionId, tokenId, addressObj);2477  }24782479  async setSponsor(signer: TSigner, sponsorAddress: TSubstrateAccount) {2480    return await this.helper.collection.setSponsor(signer, this.collectionId, sponsorAddress);2481  }24822483  async confirmSponsorship(signer: TSigner) {2484    return await this.helper.collection.confirmSponsorship(signer, this.collectionId);2485  }24862487  async removeSponsor(signer: TSigner) {2488    return await this.helper.collection.removeSponsor(signer, this.collectionId);2489  }24902491  async setLimits(signer: TSigner, limits: ICollectionLimits) {2492    return await this.helper.collection.setLimits(signer, this.collectionId, limits);2493  }24942495  async changeOwner(signer: TSigner, ownerAddress: TSubstrateAccount) {2496    return await this.helper.collection.changeOwner(signer, this.collectionId, ownerAddress);2497  }24982499  async addAdmin(signer: TSigner, adminAddressObj: ICrossAccountId) {2500    return await this.helper.collection.addAdmin(signer, this.collectionId, adminAddressObj);2501  }25022503  async addToAllowList(signer: TSigner, addressObj: ICrossAccountId) {2504    return await this.helper.collection.addToAllowList(signer, this.collectionId, addressObj);2505  }25062507  async removeFromAllowList(signer: TSigner, addressObj: ICrossAccountId) {2508    return await this.helper.collection.removeFromAllowList(signer, this.collectionId, addressObj);2509  }25102511  async removeAdmin(signer: TSigner, adminAddressObj: ICrossAccountId) {2512    return await this.helper.collection.removeAdmin(signer, this.collectionId, adminAddressObj);2513  }25142515  async setProperties(signer: TSigner, properties: IProperty[]) {2516    return await this.helper.collection.setProperties(signer, this.collectionId, properties);2517  }25182519  async deleteProperties(signer: TSigner, propertyKeys: string[]) {2520    return await this.helper.collection.deleteProperties(signer, this.collectionId, propertyKeys);2521  }25222523  async setPermissions(signer: TSigner, permissions: ICollectionPermissions) {2524    return await this.helper.collection.setPermissions(signer, this.collectionId, permissions);2525  }25262527  async enableNesting(signer: TSigner, permissions: INestingPermissions) {2528    return await this.helper.collection.enableNesting(signer, this.collectionId, permissions);2529  }25302531  async disableNesting(signer: TSigner) {2532    return await this.helper.collection.disableNesting(signer, this.collectionId);2533  }25342535  async burn(signer: TSigner) {2536    return await this.helper.collection.burn(signer, this.collectionId);2537  }25382539  scheduleAt<T extends UniqueHelper>(2540    scheduledId: string,2541    executionBlockNumber: number,2542    options: ISchedulerOptions = {},2543  ) {2544    const scheduledHelper = this.helper.scheduler.scheduleAt<T>(scheduledId, executionBlockNumber, options);2545    return new UniqueBaseCollection(this.collectionId, scheduledHelper);2546  }25472548  scheduleAfter<T extends UniqueHelper>(2549    scheduledId: string,2550    blocksBeforeExecution: number,2551    options: ISchedulerOptions = {},2552  ) {2553    const scheduledHelper = this.helper.scheduler.scheduleAfter<T>(scheduledId, blocksBeforeExecution, options);2554    return new UniqueBaseCollection(this.collectionId, scheduledHelper);2555  }25562557  getSudo<T extends UniqueHelper>() {2558    return new UniqueBaseCollection(this.collectionId, this.helper.getSudo<T>());2559  }2560}256125622563export class UniqueNFTCollection extends UniqueBaseCollection {2564  getTokenObject(tokenId: number) {2565    return new UniqueNFToken(tokenId, this);2566  }25672568  async getTokensByAddress(addressObj: ICrossAccountId) {2569    return await this.helper.nft.getTokensByAddress(this.collectionId, addressObj);2570  }25712572  async getToken(tokenId: number, blockHashAt?: string) {2573    return await this.helper.nft.getToken(this.collectionId, tokenId, [], blockHashAt);2574  }25752576  async getTokenOwner(tokenId: number, blockHashAt?: string) {2577    return await this.helper.nft.getTokenOwner(this.collectionId, tokenId, blockHashAt);2578  }25792580  async getTokenTopmostOwner(tokenId: number, blockHashAt?: string) {2581    return await this.helper.nft.getTokenTopmostOwner(this.collectionId, tokenId, blockHashAt);2582  }25832584  async getTokenChildren(tokenId: number, blockHashAt?: string) {2585    return await this.helper.nft.getTokenChildren(this.collectionId, tokenId, blockHashAt);2586  }25872588  async getPropertyPermissions(propertyKeys: string[] | null = null) {2589    return await this.helper.nft.getPropertyPermissions(this.collectionId, propertyKeys);2590  }25912592  async getTokenProperties(tokenId: number, propertyKeys?: string[] | null) {2593    return await this.helper.nft.getTokenProperties(this.collectionId, tokenId, propertyKeys);2594  }25952596  async transferToken(signer: TSigner, tokenId: number, addressObj: ICrossAccountId) {2597    return await this.helper.nft.transferToken(signer, this.collectionId, tokenId, addressObj);2598  }25992600  async transferTokenFrom(signer: TSigner, tokenId: number, fromAddressObj: ICrossAccountId, toAddressObj: ICrossAccountId) {2601    return await this.helper.nft.transferTokenFrom(signer, this.collectionId, tokenId, fromAddressObj, toAddressObj);2602  }26032604  async approveToken(signer: TSigner, tokenId: number, toAddressObj: ICrossAccountId) {2605    return await this.helper.nft.approveToken(signer, this.collectionId, tokenId, toAddressObj);2606  }26072608  async isTokenApproved(tokenId: number, toAddressObj: ICrossAccountId) {2609    return await this.helper.nft.isTokenApproved(this.collectionId, tokenId, toAddressObj);2610  }26112612  async mintToken(signer: TSigner, owner: ICrossAccountId = {Substrate: signer.address}, properties?: IProperty[]) {2613    return await this.helper.nft.mintToken(signer, {collectionId: this.collectionId, owner, properties});2614  }26152616  async mintMultipleTokens(signer: TSigner, tokens: {owner: ICrossAccountId, properties?: IProperty[]}[]) {2617    return await this.helper.nft.mintMultipleTokens(signer, this.collectionId, tokens);2618  }26192620  async burnToken(signer: TSigner, tokenId: number) {2621    return await this.helper.nft.burnToken(signer, this.collectionId, tokenId);2622  }26232624  async burnTokenFrom(signer: TSigner, tokenId: number, fromAddressObj: ICrossAccountId) {2625    return await this.helper.nft.burnTokenFrom(signer, this.collectionId, tokenId, fromAddressObj);2626  }26272628  async setTokenProperties(signer: TSigner, tokenId: number, properties: IProperty[]) {2629    return await this.helper.nft.setTokenProperties(signer, this.collectionId, tokenId, properties);2630  }26312632  async deleteTokenProperties(signer: TSigner, tokenId: number, propertyKeys: string[]) {2633    return await this.helper.nft.deleteTokenProperties(signer, this.collectionId, tokenId, propertyKeys);2634  }26352636  async setTokenPropertyPermissions(signer: TSigner, permissions: ITokenPropertyPermission[]) {2637    return await this.helper.nft.setTokenPropertyPermissions(signer, this.collectionId, permissions);2638  }26392640  async nestToken(signer: TSigner, tokenId: number, toTokenObj: IToken) {2641    return await this.helper.nft.nestToken(signer, {collectionId: this.collectionId, tokenId}, toTokenObj);2642  }26432644  async unnestToken(signer: TSigner, tokenId: number, fromTokenObj: IToken, toAddressObj: ICrossAccountId) {2645    return await this.helper.nft.unnestToken(signer, {collectionId: this.collectionId, tokenId}, fromTokenObj, toAddressObj);2646  }26472648  scheduleAt<T extends UniqueHelper>(2649    scheduledId: string,2650    executionBlockNumber: number,2651    options: ISchedulerOptions = {},2652  ) {2653    const scheduledHelper = this.helper.scheduler.scheduleAt<T>(scheduledId, executionBlockNumber, options);2654    return new UniqueNFTCollection(this.collectionId, scheduledHelper);2655  }26562657  scheduleAfter<T extends UniqueHelper>(2658    scheduledId: string,2659    blocksBeforeExecution: number,2660    options: ISchedulerOptions = {},2661  ) {2662    const scheduledHelper = this.helper.scheduler.scheduleAfter<T>(scheduledId, blocksBeforeExecution, options);2663    return new UniqueNFTCollection(this.collectionId, scheduledHelper);2664  }26652666  getSudo<T extends UniqueHelper>() {2667    return new UniqueNFTCollection(this.collectionId, this.helper.getSudo<T>());2668  }2669}267026712672export class UniqueRFTCollection extends UniqueBaseCollection {2673  getTokenObject(tokenId: number) {2674    return new UniqueRFToken(tokenId, this);2675  }26762677  async getToken(tokenId: number, blockHashAt?: string) {2678    return await this.helper.rft.getToken(this.collectionId, tokenId, [], blockHashAt);2679  }26802681  async getTokensByAddress(addressObj: ICrossAccountId) {2682    return await this.helper.rft.getTokensByAddress(this.collectionId, addressObj);2683  }26842685  async getTop10TokenOwners(tokenId: number) {2686    return await this.helper.rft.getTokenTop10Owners(this.collectionId, tokenId);2687  }26882689  async getTokenBalance(tokenId: number, addressObj: ICrossAccountId) {2690    return await this.helper.rft.getTokenBalance(this.collectionId, tokenId, addressObj);2691  }26922693  async getTokenTotalPieces(tokenId: number) {2694    return await this.helper.rft.getTokenTotalPieces(this.collectionId, tokenId);2695  }26962697  async getTokenApprovedPieces(tokenId: number, fromAddressObj: ICrossAccountId, toAddressObj: ICrossAccountId) {2698    return await this.helper.rft.getTokenApprovedPieces(this.collectionId, tokenId, toAddressObj, fromAddressObj);2699  }27002701  async getPropertyPermissions(propertyKeys: string[] | null = null) {2702    return await this.helper.rft.getPropertyPermissions(this.collectionId, propertyKeys);2703  }27042705  async getTokenProperties(tokenId: number, propertyKeys?: string[] | null) {2706    return await this.helper.rft.getTokenProperties(this.collectionId, tokenId, propertyKeys);2707  }27082709  async transferToken(signer: TSigner, tokenId: number, addressObj: ICrossAccountId, amount=1n) {2710    return await this.helper.rft.transferToken(signer, this.collectionId, tokenId, addressObj, amount);2711  }27122713  async transferTokenFrom(signer: TSigner, tokenId: number, fromAddressObj: ICrossAccountId, toAddressObj: ICrossAccountId, amount=1n) {2714    return await this.helper.rft.transferTokenFrom(signer, this.collectionId, tokenId, fromAddressObj, toAddressObj, amount);2715  }27162717  async approveToken(signer: TSigner, tokenId: number, toAddressObj: ICrossAccountId, amount=1n) {2718    return await this.helper.rft.approveToken(signer, this.collectionId, tokenId, toAddressObj, amount);2719  }27202721  async repartitionToken(signer: TSigner, tokenId: number, amount: bigint) {2722    return await this.helper.rft.repartitionToken(signer, this.collectionId, tokenId, amount);2723  }27242725  async mintToken(signer: TSigner, pieces=1n, owner: ICrossAccountId = {Substrate: signer.address}, properties?: IProperty[]) {2726    return await this.helper.rft.mintToken(signer, {collectionId: this.collectionId, owner, pieces, properties});2727  }27282729  async mintMultipleTokens(signer: TSigner, tokens: {pieces: bigint, owner: ICrossAccountId, properties?: IProperty[]}[]) {2730    return await this.helper.rft.mintMultipleTokens(signer, this.collectionId, tokens);2731  }27322733  async burnToken(signer: TSigner, tokenId: number, amount=1n) {2734    return await this.helper.rft.burnToken(signer, this.collectionId, tokenId, amount);2735  }27362737  async burnTokenFrom(signer: TSigner, tokenId: number, fromAddressObj: ICrossAccountId,  amount=1n) {2738    return await this.helper.rft.burnTokenFrom(signer, this.collectionId, tokenId, fromAddressObj, amount);2739  }27402741  async setTokenProperties(signer: TSigner, tokenId: number, properties: IProperty[]) {2742    return await this.helper.rft.setTokenProperties(signer, this.collectionId, tokenId, properties);2743  }27442745  async deleteTokenProperties(signer: TSigner, tokenId: number, propertyKeys: string[]) {2746    return await this.helper.rft.deleteTokenProperties(signer, this.collectionId, tokenId, propertyKeys);2747  }27482749  async setTokenPropertyPermissions(signer: TSigner, permissions: ITokenPropertyPermission[]) {2750    return await this.helper.rft.setTokenPropertyPermissions(signer, this.collectionId, permissions);2751  }27522753  scheduleAt<T extends UniqueHelper>(2754    scheduledId: string,2755    executionBlockNumber: number,2756    options: ISchedulerOptions = {},2757  ) {2758    const scheduledHelper = this.helper.scheduler.scheduleAt<T>(scheduledId, executionBlockNumber, options);2759    return new UniqueRFTCollection(this.collectionId, scheduledHelper);2760  }27612762  scheduleAfter<T extends UniqueHelper>(2763    scheduledId: string,2764    blocksBeforeExecution: number,2765    options: ISchedulerOptions = {},2766  ) {2767    const scheduledHelper = this.helper.scheduler.scheduleAfter<T>(scheduledId, blocksBeforeExecution, options);2768    return new UniqueRFTCollection(this.collectionId, scheduledHelper);2769  }27702771  getSudo<T extends UniqueHelper>() {2772    return new UniqueRFTCollection(this.collectionId, this.helper.getSudo<T>());2773  }2774}277527762777export class UniqueFTCollection extends UniqueBaseCollection {2778  async getBalance(addressObj: ICrossAccountId) {2779    return await this.helper.ft.getBalance(this.collectionId, addressObj);2780  }27812782  async getTotalPieces() {2783    return await this.helper.ft.getTotalPieces(this.collectionId);2784  }27852786  async getApprovedTokens(fromAddressObj: ICrossAccountId, toAddressObj: ICrossAccountId) {2787    return await this.helper.ft.getApprovedTokens(this.collectionId, fromAddressObj, toAddressObj);2788  }27892790  async getTop10Owners() {2791    return await this.helper.ft.getTop10Owners(this.collectionId);2792  }27932794  async mint(signer: TSigner, amount=1n, owner: ICrossAccountId = {Substrate: signer.address}) {2795    return await this.helper.ft.mintTokens(signer, this.collectionId, amount, owner);2796  }27972798  async mintWithOneOwner(signer: TSigner, tokens: {value: bigint}[], owner: ICrossAccountId = {Substrate: signer.address}) {2799    return await this.helper.ft.mintMultipleTokensWithOneOwner(signer, this.collectionId, tokens, owner);2800  }28012802  async transfer(signer: TSigner, toAddressObj: ICrossAccountId, amount=1n) {2803    return await this.helper.ft.transfer(signer, this.collectionId, toAddressObj, amount);2804  }28052806  async transferFrom(signer: TSigner, fromAddressObj: ICrossAccountId, toAddressObj: ICrossAccountId, amount=1n) {2807    return await this.helper.ft.transferFrom(signer, this.collectionId, fromAddressObj, toAddressObj, amount);2808  }28092810  async burnTokens(signer: TSigner, amount=1n) {2811    return await this.helper.ft.burnTokens(signer, this.collectionId, amount);2812  }28132814  async burnTokensFrom(signer: TSigner, fromAddressObj: ICrossAccountId, amount=1n) {2815    return await this.helper.ft.burnTokensFrom(signer, this.collectionId, fromAddressObj, amount);2816  }28172818  async approveTokens(signer: TSigner, toAddressObj: ICrossAccountId, amount=1n) {2819    return await this.helper.ft.approveTokens(signer, this.collectionId, toAddressObj, amount);2820  }28212822  scheduleAt<T extends UniqueHelper>(2823    scheduledId: string,2824    executionBlockNumber: number,2825    options: ISchedulerOptions = {},2826  ) {2827    const scheduledHelper = this.helper.scheduler.scheduleAt<T>(scheduledId, executionBlockNumber, options);2828    return new UniqueFTCollection(this.collectionId, scheduledHelper);2829  }28302831  scheduleAfter<T extends UniqueHelper>(2832    scheduledId: string,2833    blocksBeforeExecution: number,2834    options: ISchedulerOptions = {},2835  ) {2836    const scheduledHelper = this.helper.scheduler.scheduleAfter<T>(scheduledId, blocksBeforeExecution, options);2837    return new UniqueFTCollection(this.collectionId, scheduledHelper);2838  }28392840  getSudo<T extends UniqueHelper>() {2841    return new UniqueFTCollection(this.collectionId, this.helper.getSudo<T>());2842  }2843}284428452846export class UniqueBaseToken {2847  collection: UniqueNFTCollection | UniqueRFTCollection;2848  collectionId: number;2849  tokenId: number;28502851  constructor(tokenId: number, collection: UniqueNFTCollection | UniqueRFTCollection) {2852    this.collection = collection;2853    this.collectionId = collection.collectionId;2854    this.tokenId = tokenId;2855  }28562857  async getNextSponsored(addressObj: ICrossAccountId) {2858    return await this.collection.getTokenNextSponsored(this.tokenId, addressObj);2859  }28602861  async getProperties(propertyKeys?: string[] | null) {2862    return await this.collection.getTokenProperties(this.tokenId, propertyKeys);2863  }28642865  async setProperties(signer: TSigner, properties: IProperty[]) {2866    return await this.collection.setTokenProperties(signer, this.tokenId, properties);2867  }28682869  async deleteProperties(signer: TSigner, propertyKeys: string[]) {2870    return await this.collection.deleteTokenProperties(signer, this.tokenId, propertyKeys);2871  }28722873  async doesExist() {2874    return await this.collection.doesTokenExist(this.tokenId);2875  }28762877  nestingAccount() {2878    return this.collection.helper.util.getTokenAccount(this);2879  }28802881  scheduleAt<T extends UniqueHelper>(2882    scheduledId: string,2883    executionBlockNumber: number,2884    options: ISchedulerOptions = {},2885  ) {2886    const scheduledCollection = this.collection.scheduleAt<T>(scheduledId, executionBlockNumber, options);2887    return new UniqueBaseToken(this.tokenId, scheduledCollection);2888  }28892890  scheduleAfter<T extends UniqueHelper>(2891    scheduledId: string,2892    blocksBeforeExecution: number,2893    options: ISchedulerOptions = {},2894  ) {2895    const scheduledCollection = this.collection.scheduleAfter<T>(scheduledId, blocksBeforeExecution, options);2896    return new UniqueBaseToken(this.tokenId, scheduledCollection);2897  }28982899  getSudo<T extends UniqueHelper>() {2900    return new UniqueBaseToken(this.tokenId, this.collection.getSudo<T>());2901  }2902}290329042905export class UniqueNFToken extends UniqueBaseToken {2906  collection: UniqueNFTCollection;29072908  constructor(tokenId: number, collection: UniqueNFTCollection) {2909    super(tokenId, collection);2910    this.collection = collection;2911  }29122913  async getData(blockHashAt?: string) {2914    return await this.collection.getToken(this.tokenId, blockHashAt);2915  }29162917  async getOwner(blockHashAt?: string) {2918    return await this.collection.getTokenOwner(this.tokenId, blockHashAt);2919  }29202921  async getTopmostOwner(blockHashAt?: string) {2922    return await this.collection.getTokenTopmostOwner(this.tokenId, blockHashAt);2923  }29242925  async getChildren(blockHashAt?: string) {2926    return await this.collection.getTokenChildren(this.tokenId, blockHashAt);2927  }29282929  async nest(signer: TSigner, toTokenObj: IToken) {2930    return await this.collection.nestToken(signer, this.tokenId, toTokenObj);2931  }29322933  async unnest(signer: TSigner, fromTokenObj: IToken, toAddressObj: ICrossAccountId) {2934    return await this.collection.unnestToken(signer, this.tokenId, fromTokenObj, toAddressObj);2935  }29362937  async transfer(signer: TSigner, addressObj: ICrossAccountId) {2938    return await this.collection.transferToken(signer, this.tokenId, addressObj);2939  }29402941  async transferFrom(signer: TSigner, fromAddressObj: ICrossAccountId, toAddressObj: ICrossAccountId) {2942    return await this.collection.transferTokenFrom(signer, this.tokenId, fromAddressObj, toAddressObj);2943  }29442945  async approve(signer: TSigner, toAddressObj: ICrossAccountId) {2946    return await this.collection.approveToken(signer, this.tokenId, toAddressObj);2947  }29482949  async isApproved(toAddressObj: ICrossAccountId) {2950    return await this.collection.isTokenApproved(this.tokenId, toAddressObj);2951  }29522953  async burn(signer: TSigner) {2954    return await this.collection.burnToken(signer, this.tokenId);2955  }29562957  async burnFrom(signer: TSigner, fromAddressObj: ICrossAccountId) {2958    return await this.collection.burnTokenFrom(signer, this.tokenId, fromAddressObj);2959  }29602961  scheduleAt<T extends UniqueHelper>(2962    scheduledId: string,2963    executionBlockNumber: number,2964    options: ISchedulerOptions = {},2965  ) {2966    const scheduledCollection = this.collection.scheduleAt<T>(scheduledId, executionBlockNumber, options);2967    return new UniqueNFToken(this.tokenId, scheduledCollection);2968  }29692970  scheduleAfter<T extends UniqueHelper>(2971    scheduledId: string,2972    blocksBeforeExecution: number,2973    options: ISchedulerOptions = {},2974  ) {2975    const scheduledCollection = this.collection.scheduleAfter<T>(scheduledId, blocksBeforeExecution, options);2976    return new UniqueNFToken(this.tokenId, scheduledCollection);2977  }29782979  getSudo<T extends UniqueHelper>() {2980    return new UniqueNFToken(this.tokenId, this.collection.getSudo<T>());2981  }2982}29832984export class UniqueRFToken extends UniqueBaseToken {2985  collection: UniqueRFTCollection;29862987  constructor(tokenId: number, collection: UniqueRFTCollection) {2988    super(tokenId, collection);2989    this.collection = collection;2990  }29912992  async getData(blockHashAt?: string) {2993    return await this.collection.getToken(this.tokenId, blockHashAt);2994  }29952996  async getTop10Owners() {2997    return await this.collection.getTop10TokenOwners(this.tokenId);2998  }29993000  async getBalance(addressObj: ICrossAccountId) {3001    return await this.collection.getTokenBalance(this.tokenId, addressObj);3002  }30033004  async getTotalPieces() {3005    return await this.collection.getTokenTotalPieces(this.tokenId);3006  }30073008  async getApprovedPieces(fromAddressObj: ICrossAccountId, toAccountObj: ICrossAccountId) {3009    return await this.collection.getTokenApprovedPieces(this.tokenId, fromAddressObj, toAccountObj);3010  }30113012  async transfer(signer: TSigner, addressObj: ICrossAccountId, amount=1n) {3013    return await this.collection.transferToken(signer, this.tokenId, addressObj, amount);3014  }30153016  async transferFrom(signer: TSigner, fromAddressObj: ICrossAccountId, toAddressObj: ICrossAccountId, amount=1n) {3017    return await this.collection.transferTokenFrom(signer, this.tokenId, fromAddressObj, toAddressObj, amount);3018  }30193020  async approve(signer: TSigner, toAddressObj: ICrossAccountId, amount=1n) {3021    return await this.collection.approveToken(signer, this.tokenId, toAddressObj, amount);3022  }30233024  async repartition(signer: TSigner, amount: bigint) {3025    return await this.collection.repartitionToken(signer, this.tokenId, amount);3026  }30273028  async burn(signer: TSigner, amount=1n) {3029    return await this.collection.burnToken(signer, this.tokenId, amount);3030  }30313032  async burnFrom(signer: TSigner, fromAddressObj: ICrossAccountId, amount=1n) {3033    return await this.collection.burnTokenFrom(signer, this.tokenId, fromAddressObj, amount);3034  }30353036  scheduleAt<T extends UniqueHelper>(3037    scheduledId: string,3038    executionBlockNumber: number,3039    options: ISchedulerOptions = {},3040  ) {3041    const scheduledCollection = this.collection.scheduleAt<T>(scheduledId, executionBlockNumber, options);3042    return new UniqueRFToken(this.tokenId, scheduledCollection);3043  }30443045  scheduleAfter<T extends UniqueHelper>(3046    scheduledId: string,3047    blocksBeforeExecution: number,3048    options: ISchedulerOptions = {},3049  ) {3050    const scheduledCollection = this.collection.scheduleAfter<T>(scheduledId, blocksBeforeExecution, options);3051    return new UniqueRFToken(this.tokenId, scheduledCollection);3052  }30533054  getSudo<T extends UniqueHelper>() {3055    return new UniqueRFToken(this.tokenId, this.collection.getSudo<T>());3056  }3057}
deletedtests/src/util/util.tsdiffbeforeafterboth
--- a/tests/src/util/util.ts
+++ /dev/null
@@ -1,46 +0,0 @@
-// Copyright 2019-2022 Unique Network (Gibraltar) Ltd.
-// This file is part of Unique Network.
-
-// Unique Network is free software: you can redistribute it and/or modify
-// it under the terms of the GNU General Public License as published by
-// the Free Software Foundation, either version 3 of the License, or
-// (at your option) any later version.
-
-// Unique Network is distributed in the hope that it will be useful,
-// but WITHOUT ANY WARRANTY; without even the implied warranty of
-// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
-// GNU General Public License for more details.
-
-// You should have received a copy of the GNU General Public License
-// along with Unique Network. If not, see <http://www.gnu.org/licenses/>.
-
-export function strToUTF16(str: string): any {
-  const buf: number[] = [];
-  for (let i=0, strLen=str.length; i < strLen; i++) {
-    buf.push(str.charCodeAt(i));
-  }
-  return buf;
-}
-
-export function utf16ToStr(buf: number[]): string {
-  let str = '';
-  for (let i=0, strLen=buf.length; i < strLen; i++) {
-    if (buf[i] != 0) str += String.fromCharCode(buf[i]);
-    else break;
-  }
-  return str;
-}
-
-export function hexToStr(buf: string): string {
-  let str = '';
-  let hexStart = buf.indexOf('0x');
-  if (hexStart < 0) hexStart = 0;
-  else hexStart = 2;  
-  for (let i=hexStart, strLen=buf.length; i < strLen; i+=2) {
-    const ch = buf[i] + buf[i+1];
-    const num = parseInt(ch, 16);
-    if (num != 0) str += String.fromCharCode(num);
-    else break;
-  }
-  return str;
-}
modifiedtests/src/xcm/xcmOpal.test.tsdiffbeforeafterboth
--- a/tests/src/xcm/xcmOpal.test.ts
+++ b/tests/src/xcm/xcmOpal.test.ts
@@ -21,9 +21,8 @@
 import {ApiOptions} from '@polkadot/api/types';
 import {IKeyringPair} from '@polkadot/types/types';
 import usingApi, {executeTransaction} from './../substrate/substrate-api';
-import {bigIntToDecimals, describe_xcm, getGenericResult, paraSiblingSovereignAccount} from './../util/helpers';
+import {bigIntToDecimals, describe_xcm, getGenericResult, paraSiblingSovereignAccount, normalizeAccountId} from './../deprecated-helpers/helpers';
 import waitNewBlocks from './../substrate/wait-new-blocks';
-import {normalizeAccountId} from './../util/helpers';
 import getBalance from './../substrate/get-balance';
 
 
modifiedtests/src/xcm/xcmQuartz.test.tsdiffbeforeafterboth
--- a/tests/src/xcm/xcmQuartz.test.ts
+++ b/tests/src/xcm/xcmQuartz.test.ts
@@ -21,7 +21,7 @@
 import {ApiOptions} from '@polkadot/api/types';
 import {IKeyringPair} from '@polkadot/types/types';
 import usingApi, {submitTransactionAsync} from '../substrate/substrate-api';
-import {getGenericResult, generateKeyringPair, waitEvent, describe_xcm, bigIntToDecimals} from '../util/helpers';
+import {getGenericResult, generateKeyringPair, waitEvent, describe_xcm, bigIntToDecimals} from '../deprecated-helpers/helpers';
 import {MultiLocation} from '@polkadot/types/interfaces';
 import {blake2AsHex} from '@polkadot/util-crypto';
 import waitNewBlocks from '../substrate/wait-new-blocks';
modifiedtests/src/xcm/xcmUnique.test.tsdiffbeforeafterboth
--- a/tests/src/xcm/xcmUnique.test.ts
+++ b/tests/src/xcm/xcmUnique.test.ts
@@ -21,7 +21,7 @@
 import {ApiOptions} from '@polkadot/api/types';
 import {IKeyringPair} from '@polkadot/types/types';
 import usingApi, {submitTransactionAsync} from '../substrate/substrate-api';
-import {getGenericResult, generateKeyringPair, waitEvent, describe_xcm, bigIntToDecimals} from '../util/helpers';
+import {getGenericResult, generateKeyringPair, waitEvent, describe_xcm, bigIntToDecimals} from '../deprecated-helpers/helpers';
 import {MultiLocation} from '@polkadot/types/interfaces';
 import {blake2AsHex} from '@polkadot/util-crypto';
 import waitNewBlocks from '../substrate/wait-new-blocks';
deletedtests/src/xcmTransfer.test.tsdiffbeforeafterboth
--- a/tests/src/xcmTransfer.test.ts
+++ /dev/null
@@ -1,187 +0,0 @@
-// Copyright 2019-2022 Unique Network (Gibraltar) Ltd.
-// This file is part of Unique Network.
-
-// Unique Network is free software: you can redistribute it and/or modify
-// it under the terms of the GNU General Public License as published by
-// the Free Software Foundation, either version 3 of the License, or
-// (at your option) any later version.
-
-// Unique Network is distributed in the hope that it will be useful,
-// but WITHOUT ANY WARRANTY; without even the implied warranty of
-// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
-// GNU General Public License for more details.
-
-// You should have received a copy of the GNU General Public License
-// along with Unique Network. If not, see <http://www.gnu.org/licenses/>.
-
-import chai from 'chai';
-import chaiAsPromised from 'chai-as-promised';
-
-import {WsProvider} from '@polkadot/api';
-import {ApiOptions} from '@polkadot/api/types';
-import {IKeyringPair} from '@polkadot/types/types';
-import usingApi, {submitTransactionAsync} from './substrate/substrate-api';
-import {getGenericResult} from './util/helpers';
-import waitNewBlocks from './substrate/wait-new-blocks';
-import getBalance from './substrate/get-balance';
-
-chai.use(chaiAsPromised);
-const expect = chai.expect;
-
-const UNIQUE_CHAIN = 1000;
-const KARURA_CHAIN = 2000;
-const KARURA_PORT = '9946';
-const TRANSFER_AMOUNT = 2000000000000000000000000n;
-
-// todo:playgrounds refit when XCM drops
-describe.skip('Integration test: Exchanging QTZ with Karura', () => {
-  let alice: IKeyringPair;
-
-  before(async () => {
-    await usingApi(async (api, privateKeyWrapper) => {
-      alice = privateKeyWrapper('//Alice');
-    });
-
-    const karuraApiOptions: ApiOptions = {
-      provider: new WsProvider('ws://127.0.0.1:' + KARURA_PORT),
-    };
-
-    await usingApi(async (api) => {
-      const destination = {
-        V0: {
-          X2: [
-            'Parent',
-            {
-              Parachain: UNIQUE_CHAIN,
-            },
-          ],
-        },
-      };
-
-      const metadata =
-      {
-        name: 'QTZ',
-        symbol: 'QTZ',
-        decimals: 18,
-        minimalBalance: 1,
-      };
-
-      const tx = api.tx.assetRegistry.registerForeignAsset(destination, metadata);
-      const sudoTx = api.tx.sudo.sudo(tx as any);
-      const events = await submitTransactionAsync(alice, sudoTx);
-      const result = getGenericResult(events);
-      expect(result.success).to.be.true;
-    }, karuraApiOptions);
-  });
-
-  it('Should connect and send QTZ to Karura', async () => {
-    let balanceOnKaruraBefore: bigint;
-
-    await usingApi(async (api) => {
-      const {free} = (await api.query.tokens.accounts(alice.addressRaw, {ForeignAssetId: 0})).toJSON() as any;
-      balanceOnKaruraBefore = free;
-    }, {provider: new WsProvider('ws://127.0.0.1:' + KARURA_PORT)});
-
-    await usingApi(async (api) => {
-      const destination = {
-        V0: {
-          X2: [
-            'Parent',
-            {
-              Parachain: KARURA_CHAIN,
-            },
-          ],
-        },
-      };
-
-      const beneficiary = {
-        V0: {
-          X1: {
-            AccountId32: {
-              network: 'Any',
-              id: alice.addressRaw,
-            },
-          },
-        },
-      };
-
-      const assets = {
-        V1: [
-          {
-            id: {
-              Concrete: {
-                parents: 0,
-                interior: 'Here',
-              },
-            },
-            fun: {
-              Fungible: TRANSFER_AMOUNT,
-            },
-          },
-        ],
-      };
-
-      const feeAssetItem = 0;
-
-      const weightLimit = {
-        Limited: 5000000000,
-      };
-
-      const tx = api.tx.polkadotXcm.limitedReserveTransferAssets(destination, beneficiary, assets, feeAssetItem, weightLimit);
-      const events = await submitTransactionAsync(alice, tx);
-      const result = getGenericResult(events);
-      expect(result.success).to.be.true;
-    });
-
-    await usingApi(async (api) => {
-      // todo do something about instant sealing, where there might not be any new blocks
-      await waitNewBlocks(api, 3);
-      const {free} = (await api.query.tokens.accounts(alice.addressRaw, {ForeignAssetId: 0})).toJSON() as any;
-      expect(free > balanceOnKaruraBefore).to.be.true;
-    }, {provider: new WsProvider('ws://127.0.0.1:' + KARURA_PORT)});
-  });
-
-  it('Should connect to Karura and send QTZ back', async () => {
-    let balanceBefore: bigint;
-
-    await usingApi(async (api) => {
-      [balanceBefore] = await getBalance(api, [alice.address]);
-    });
-
-    await usingApi(async (api) => {
-      const destination = {
-        V1: {
-          parents: 1,
-          interior: {
-            X2: [
-              {Parachain: UNIQUE_CHAIN},
-              {AccountId32: {
-                network: 'Any',
-                id: alice.addressRaw,
-              }},
-            ],
-          },
-        },
-      };
-
-      const id = {
-        ForeignAssetId: 0,
-      };
-
-      const amount = TRANSFER_AMOUNT;
-      const destWeight = 50000000;
-
-      const tx = api.tx.xTokens.transfer(id, amount, destination, destWeight);
-      const events = await submitTransactionAsync(alice, tx);
-      const result = getGenericResult(events);
-      expect(result.success).to.be.true;
-    }, {provider: new WsProvider('ws://127.0.0.1:' + KARURA_PORT)});
-
-    await usingApi(async (api) => {
-      // todo do something about instant sealing, where there might not be any new blocks
-      await waitNewBlocks(api, 3);
-      const [balanceAfter] = await getBalance(api, [alice.address]);
-      expect(balanceAfter > balanceBefore).to.be.true;
-    });
-  });
-});
modifiedtests/tsconfig.jsondiffbeforeafterboth
--- a/tests/tsconfig.json
+++ b/tests/tsconfig.json
@@ -21,6 +21,9 @@
     "./src/**/*",
     "./src/interfaces/*.ts"
   ],
+  "exclude": [
+    "./src/.outdated"
+  ],
   "lib": [
     "es2017"
   ],