git.delta.rocks / unique-network / refs/commits / 49182bd0a7fd

difftreelog

Merge pull request #788 from UniqueNetwork/tests/eth-helpers

ut-akuznetsov2022-12-19parents: #c12162a #bb64e2b.patch.diff
in: master

60 files changed

addedtests/src/.outdated/rmrk/acceptNft.seqtest.tsdiffbeforeafterboth
--- /dev/null
+++ b/tests/src/.outdated/rmrk/acceptNft.seqtest.ts
@@ -0,0 +1,107 @@
+import {expect} from 'chai';
+import {getApiConnection} from '../substrate/substrate-api';
+import {
+  createCollection,
+  mintNft,
+  sendNft,
+  acceptNft,
+} from './util/tx';
+import {NftIdTuple} from './util/fetch';
+import {isNftChildOfAnother, expectTxFailure, requirePallets, Pallets} from './util/helpers';
+
+describe('integration test: accept NFT', () => {
+  let api: any;
+  before(async function() {
+    api = await getApiConnection();
+    await requirePallets(this, [Pallets.RmrkCore]);
+  });
+  
+  
+  const alice = '//Alice';
+  const bob = '//Bob';
+  
+  const createTestCollection = async (issuerUri: string) => {
+    return await createCollection(
+      api,
+      issuerUri,
+      'accept-metadata',
+      null,
+      'acpt',
+    );
+  };
+
+  it('accept NFT', async () => {
+    const ownerAlice = alice;
+    const ownerBob = bob;
+
+    const aliceCollectionId = await createTestCollection(alice);
+    const bobCollectionId = await createTestCollection(bob);
+
+    const parentNftId = await mintNft(api, alice, ownerAlice, aliceCollectionId, 'parent-nft-metadata');
+    const childNftId = await mintNft(api, bob, ownerBob, bobCollectionId, 'child-nft-metadata');
+
+    const newOwnerNFT: NftIdTuple = [aliceCollectionId, parentNftId];
+
+    await sendNft(api, 'pending', ownerBob, bobCollectionId, childNftId, newOwnerNFT);
+    await acceptNft(api, alice, bobCollectionId, childNftId, newOwnerNFT);
+
+    const isChild = await isNftChildOfAnother(api, bobCollectionId, childNftId, newOwnerNFT);
+    expect(isChild).to.be.true;
+  });
+
+  it('[negative] unable to accept NFT by a not-an-owner', async () => {
+    const ownerAlice = alice;
+    const ownerBob = bob;
+
+    const aliceCollectionId = await createTestCollection(alice);
+    const bobCollectionId = await createTestCollection(bob);
+
+    const parentNftId = await mintNft(api, alice, ownerAlice, aliceCollectionId, 'parent-nft-metadata');
+    const childNftId = await mintNft(api, bob, ownerBob, bobCollectionId, 'child-nft-metadata');
+
+    const newOwnerNFT: NftIdTuple = [aliceCollectionId, parentNftId];
+
+    await sendNft(api, 'pending', ownerBob, bobCollectionId, childNftId, newOwnerNFT);
+    const tx = acceptNft(api, bob, bobCollectionId, childNftId, newOwnerNFT);
+
+    await expectTxFailure(/rmrkCore\.NoPermission/, tx);
+  });
+
+  it('[negative] unable to accept non-existing NFT', async () => {
+    const collectionId = 0;
+    const maxNftId = 0xFFFFFFFF;
+
+    const owner = alice;
+    const aliceCollectionId = await createTestCollection(alice);
+
+    const parentNftId = await mintNft(api, alice, owner, aliceCollectionId, 'parent-nft-metadata');
+
+    const newOwnerNFT: NftIdTuple = [aliceCollectionId, parentNftId];
+
+    const tx = acceptNft(api, alice, collectionId, maxNftId, newOwnerNFT);
+
+    await expectTxFailure(/rmrkCore\.NoAvailableNftId/, tx);
+  });
+
+  it('[negative] unable to accept NFT which is not sent', async () => {
+    const ownerAlice = alice;
+    const ownerBob = bob;
+
+    const aliceCollectionId = await createTestCollection(alice);
+    const bobCollectionId = await createTestCollection(bob);
+
+    const parentNftId = await mintNft(api, alice, ownerAlice, aliceCollectionId, 'parent-nft-metadata');
+    const childNftId = await mintNft(api, bob, ownerBob, bobCollectionId, 'child-nft-metadata');
+
+    const newOwnerNFT: NftIdTuple = [aliceCollectionId, parentNftId];
+
+    const tx = acceptNft(api, alice, bobCollectionId, childNftId, newOwnerNFT);
+
+    await expectTxFailure(/rmrkCore\.NoPermission/, tx);
+
+    const isChild = await isNftChildOfAnother(api, bobCollectionId, childNftId, newOwnerNFT);
+    expect(isChild).to.be.false;
+  });
+
+  after(async() => { await api.disconnect(); });
+});
addedtests/src/.outdated/rmrk/addResource.seqtest.tsdiffbeforeafterboth
--- /dev/null
+++ b/tests/src/.outdated/rmrk/addResource.seqtest.ts
@@ -0,0 +1,435 @@
+import {expect} from 'chai';
+import {getApiConnection} from '../substrate/substrate-api';
+import {NftIdTuple} from './util/fetch';
+import {expectTxFailure, getResourceById, requirePallets, Pallets} from './util/helpers';
+import {
+  addNftBasicResource,
+  acceptNftResource,
+  createCollection,
+  mintNft,
+  sendNft,
+  addNftSlotResource,
+  addNftComposableResource,
+} from './util/tx';
+import {RmrkTraitsResourceResourceInfo as ResourceInfo} from '@polkadot/types/lookup';
+
+describe('integration test: add NFT resource', () => {
+  const alice = '//Alice';
+  const bob = '//Bob';
+  const src = 'test-res-src';
+  const metadata = 'test-res-metadata';
+  const license = 'test-res-license';
+  const thumb = 'test-res-thumb';
+
+  const nonexistentId = 99999;
+
+  let api: any;
+  before(async function() {
+    api = await getApiConnection();
+    await requirePallets(this, [Pallets.RmrkCore]);
+  });
+
+  it('add resource', async () => {
+    const collectionIdAlice = await createCollection(
+      api,
+      alice,
+      'test-metadata',
+      null,
+      'test-symbol',
+    );
+
+    const nftAlice = await mintNft(
+      api,
+      alice,
+      alice,
+      collectionIdAlice,
+      'nft-metadata',
+    );
+
+    await addNftBasicResource(
+      api,
+      alice,
+      'added',
+      collectionIdAlice,
+      nftAlice,
+      src,
+      metadata,
+      license,
+      thumb,
+    );
+  });
+
+  it('add a resource to the nested NFT', async () => {
+    const collectionIdAlice = await createCollection(
+      api,
+      alice,
+      'test-metadata',
+      null,
+      'test-symbol',
+    );
+
+    const parentNftId = await mintNft(api, alice, alice, collectionIdAlice, 'parent-nft-metadata');
+    const childNftId = await mintNft(api, alice, alice, collectionIdAlice, 'child-nft-metadata');
+
+    const newOwnerNFT: NftIdTuple = [collectionIdAlice, parentNftId];
+
+    await sendNft(api, 'sent', alice, collectionIdAlice, childNftId, newOwnerNFT);
+
+    await addNftBasicResource(
+      api,
+      alice,
+      'added',
+      collectionIdAlice,
+      childNftId,
+      src,
+      metadata,
+      license,
+      thumb,
+    );
+  });
+
+  it('add multiple resources', async () => {
+    const collectionIdAlice = await createCollection(
+      api,
+      alice,
+      'test-metadata',
+      null,
+      'test-symbol',
+    );
+
+    const nftAlice = await mintNft(
+      api,
+      alice,
+      alice,
+      collectionIdAlice,
+      'nft-metadata',
+    );
+
+    const baseId = 42;
+    const slotId = 10;
+    const parts = [0, 5, 2];
+
+    const resourcesInfo = [];
+    const resourceNum = 4;
+
+    const checkResource = (resource: ResourceInfo, resType: string, expectedId: number, expected: {
+      src: string,
+      metadata: string,
+      license: string,
+      thumb: string
+    }) => {
+
+      // FIXME A workaround. It seems it is a PolkadotJS bug.
+      // All of the following are `false`.
+      //
+      // console.log('>>> basic:', resource.resource.isBasic);
+      // console.log('>>> composable:', resource.resource.isComposable);
+      // console.log('>>> slot:', resource.resource.isSlot);
+      const resourceJson = (resource.resource.toHuman() as any)[resType];
+
+      expect(resource.id.toNumber(), 'Error: Invalid resource Id')
+        .to.be.eq(expectedId);
+
+      expect(resourceJson.src, 'Error: Invalid resource src')
+        .to.be.eq(expected.src);
+      expect(resourceJson.metadata, 'Error: Invalid resource metadata')
+        .to.be.eq(expected.metadata);
+      expect(resourceJson.license, 'Error: Invalid resource license')
+        .to.be.eq(expected.license);
+      expect(resourceJson.thumb, 'Error: Invalid resource thumb')
+        .to.be.eq(expected.thumb);
+    };
+
+    for (let i = 0; i < resourceNum; i++) {
+      resourcesInfo.push({
+        src: src + 'r-' + i,
+        metadata: metadata + 'r-' + i,
+        license: license + 'r-' + i,
+        thumb: thumb + 'r-' + i,
+      });
+    }
+
+    const firstBasicResourceId = await addNftBasicResource(
+      api,
+      alice,
+      'added',
+      collectionIdAlice,
+      nftAlice,
+      resourcesInfo[0].src,
+      resourcesInfo[0].metadata,
+      resourcesInfo[0].license,
+      resourcesInfo[0].thumb,
+    );
+
+    const secondBasicResourceId = await addNftBasicResource(
+      api,
+      alice,
+      'added',
+      collectionIdAlice,
+      nftAlice,
+      resourcesInfo[1].src,
+      resourcesInfo[1].metadata,
+      resourcesInfo[1].license,
+      resourcesInfo[1].thumb,
+    );
+
+    const composableResourceId = await addNftComposableResource(
+      api,
+      alice,
+      'added',
+      collectionIdAlice,
+      nftAlice,
+      parts,
+      baseId,
+      resourcesInfo[2].src,
+      resourcesInfo[2].metadata,
+      resourcesInfo[2].license,
+      resourcesInfo[2].thumb,
+    );
+
+    const slotResourceId = await addNftSlotResource(
+      api,
+      alice,
+      'added',
+      collectionIdAlice,
+      nftAlice,
+      baseId,
+      slotId,
+      resourcesInfo[3].src,
+      resourcesInfo[3].metadata,
+      resourcesInfo[3].license,
+      resourcesInfo[3].thumb,
+    );
+
+    const firstResource = await getResourceById(api, collectionIdAlice, nftAlice, firstBasicResourceId);
+    await checkResource(firstResource, 'Basic', firstBasicResourceId, resourcesInfo[0]);
+
+    const secondResource = await getResourceById(api, collectionIdAlice, nftAlice, secondBasicResourceId);
+    await checkResource(secondResource, 'Basic', secondBasicResourceId, resourcesInfo[1]);
+
+    const composableResource = await getResourceById(api, collectionIdAlice, nftAlice, composableResourceId);
+    await checkResource(composableResource, 'Composable', composableResourceId, resourcesInfo[2]);
+
+    const slotResource = await getResourceById(api, collectionIdAlice, nftAlice, slotResourceId);
+    await checkResource(slotResource, 'Slot', slotResourceId, resourcesInfo[3]);
+  });
+
+  it('[negative]: unable to add a resource to the non-existing NFT', async () => {
+    const collectionIdAlice = await createCollection(
+      api,
+      alice,
+      'test-metadata',
+      null,
+      'test-symbol',
+    );
+
+    const tx = addNftBasicResource(
+      api,
+      alice,
+      'added',
+      collectionIdAlice,
+      nonexistentId,
+      src,
+      metadata,
+      license,
+      thumb,
+    );
+  
+    await expectTxFailure(/rmrkCore\.NoAvailableNftId/, tx);
+  });
+
+  it('[negative]: unable to add a resource by a not-an-owner user', async () => {
+    const collectionIdAlice = await createCollection(
+      api,
+      alice,
+      'test-metadata',
+      null,
+      'test-symbol',
+    );
+
+    const nftAlice = await mintNft(
+      api,
+      alice,
+      alice,
+      collectionIdAlice,
+      'nft-metadata',
+    );
+
+    const tx = addNftBasicResource(
+      api,
+      bob,
+      'added',
+      collectionIdAlice,
+      nftAlice,
+      src,
+      metadata,
+      license,
+      thumb,
+    );
+  
+    await expectTxFailure(/rmrkCore\.NoPermission/, tx);
+  });
+
+  it('[negative]: unable to add a resource to the nested NFT if it isnt root owned by the caller', async () => {
+    const collectionIdAlice = await createCollection(
+      api,
+      alice,
+      'test-metadata',
+      null,
+      'test-symbol',
+    );
+
+    const parentNftId = await mintNft(api, alice, alice, collectionIdAlice, 'parent-nft-metadata');
+    const childNftId = await mintNft(api, alice, alice, collectionIdAlice, 'child-nft-metadata');
+
+    const newOwnerNFT: NftIdTuple = [collectionIdAlice, parentNftId];
+
+    await sendNft(api, 'sent', alice, collectionIdAlice, childNftId, newOwnerNFT);
+
+    const tx = addNftBasicResource(
+      api,
+      bob,
+      'added',
+      collectionIdAlice,
+      childNftId,
+      src,
+      metadata,
+      license,
+      thumb,
+    );
+    
+    await expectTxFailure(/rmrkCore\.NoPermission/, tx);
+  });
+
+  it('accept resource', async () => {
+    const collectionIdBob = await createCollection(
+      api,
+      bob,
+      'test-metadata',
+      null,
+      'test-symbol',
+    );
+
+    const nftAlice = await mintNft(
+      api,
+      bob,
+      alice,
+      collectionIdBob,
+      'nft-metadata',
+    );
+
+    const resourceId = await addNftBasicResource(
+      api,
+      bob,
+      'pending',
+      collectionIdBob,
+      nftAlice,
+      src,
+      metadata,
+      license,
+      thumb,
+    );
+
+    await acceptNftResource(api, alice, collectionIdBob, nftAlice, resourceId);
+  });
+
+  it('[negative]: unable to accept a non-existing resource', async () => {
+    const collectionIdBob = await createCollection(
+      api,
+      bob,
+      'test-metadata',
+      null,
+      'test-symbol',
+    );
+
+    const nftAlice = await mintNft(
+      api,
+      bob,
+      alice,
+      collectionIdBob,
+      'nft-metadata',
+    );
+
+    const tx = acceptNftResource(api, alice, collectionIdBob, nftAlice, nonexistentId);
+    await expectTxFailure(/rmrkCore\.ResourceDoesntExist/, tx);
+  });
+
+  it('[negative]: unable to accept a resource by a not-an-NFT-owner user', async () => {
+    const collectionIdBob = await createCollection(
+      api,
+      bob,
+      'test-metadata',
+      null,
+      'test-symbol',
+    );
+
+    const nftAlice = await mintNft(
+      api,
+      bob,
+      alice,
+      collectionIdBob,
+      'nft-metadata',
+    );
+
+    const resourceId = await addNftBasicResource(
+      api,
+      bob,
+      'pending',
+      collectionIdBob,
+      nftAlice,
+      src,
+      metadata,
+      license,
+      thumb,
+    );
+
+    const tx = acceptNftResource(api, bob, collectionIdBob, nftAlice, resourceId);
+
+    await expectTxFailure(/rmrkCore\.NoPermission/, tx);
+  });
+
+  it('[negative]: unable to accept a resource to a non-target NFT', async () => {
+    const collectionIdBob = await createCollection(
+      api,
+      bob,
+      'test-metadata',
+      null,
+      'test-symbol',
+    );
+
+    const nftAlice = await mintNft(
+      api,
+      bob,
+      alice,
+      collectionIdBob,
+      'nft-metadata',
+    );
+
+    const wrongNft = await mintNft(
+      api,
+      bob,
+      alice,
+      collectionIdBob,
+      'nft-metadata',
+    );
+    
+    const resourceId = await addNftBasicResource(
+      api,
+      bob,
+      'pending',
+      collectionIdBob,
+      nftAlice,
+      src,
+      metadata,
+      license,
+      thumb,
+    );
+
+    const tx = acceptNftResource(api, bob, collectionIdBob, wrongNft, resourceId);
+
+    await expectTxFailure(/rmrkCore\.ResourceDoesntExist/, tx);
+  });
+
+
+  after(async() => { await api.disconnect(); });
+});
addedtests/src/.outdated/rmrk/addTheme.seqtest.tsdiffbeforeafterboth
--- /dev/null
+++ b/tests/src/.outdated/rmrk/addTheme.seqtest.ts
@@ -0,0 +1,129 @@
+import {expect} from 'chai';
+import {getApiConnection} from '../substrate/substrate-api';
+import {createBase, addTheme} from './util/tx';
+import {expectTxFailure, requirePallets, Pallets} from './util/helpers';
+import {getThemeNames} from './util/fetch';
+
+describe('integration test: add Theme to Base', () => {
+  let api: any;
+  before(async function() {
+    api = await getApiConnection();
+    await requirePallets(this, [Pallets.RmrkEquip]);
+  });
+
+  const alice = '//Alice';
+  const bob = '//Bob';
+
+  it('add default theme', async () => {
+    const baseId = await createBase(api, alice, 'default-themed-base', 'DTBase', []);
+    await addTheme(api, alice, baseId, {
+      name: 'default',
+      properties: [
+        {
+          key: 'some-key',
+          value: 'some-key-value',
+        },
+        {
+          key: 'another-key',
+          value: 'another-key-value',
+        },
+      ],
+    });
+  });
+
+  it('add default theme and a custom one', async () => {
+    const baseId = await createBase(api, alice, '2-themed-base', '2TBase', []);
+    await addTheme(api, alice, baseId, {
+      name: 'default',
+      properties: [
+        {
+          key: 'default-key',
+          value: 'default-key-value',
+        },
+      ],
+    });
+    await addTheme(api, alice, baseId, {
+      name: 'custom-theme',
+      properties: [
+        {
+          key: 'custom-key-0',
+          value: 'custom-key-value-0',
+        },
+        {
+          key: 'custom-key-1',
+          value: 'custom-key-value-1',
+        },
+      ],
+    });
+  });
+
+  it('fetch filtered theme keys', async () => {
+    const baseId = await createBase(api, alice, '2-themed-base', '2TBase', []);
+    await addTheme(api, alice, baseId, {
+      name: 'default',
+      properties: [
+        {
+          key: 'first-key',
+          value: 'first-key-value',
+        },
+        {
+          key: 'second-key',
+          value: 'second-key-value',
+        },
+      ],
+    }, ['second-key']);
+  });
+
+  it('fetch theme names', async() => {
+    const baseId = await createBase(api, alice, '3-themed-base', '3TBase', []);
+    const names = [
+      'default',
+      'first-theme',
+      'second-theme',
+    ];
+
+    for (let i = 0; i < names.length; i++) {
+      await addTheme(api, alice, baseId, {name: names[i], properties: [{key: 'dummy', value: 'dummy'}]});
+    }
+
+    const fetchedNames = await getThemeNames(api, baseId);
+
+    for (let i = 0; i < names.length; i++) {
+      const isFound = fetchedNames.find((name) => name === names[i]) !== undefined;
+
+      expect(isFound, 'Error: invalid theme names').to.be.true;
+    }
+  });
+
+  it('[negative] unable to add theme to non-existing base', async () => {
+    const maxBaseId = 0xFFFFFFFF;
+    const tx = addTheme(api, alice, maxBaseId, {
+      name: 'default',
+      properties: [],
+    });
+
+    await expectTxFailure(/rmrkEquip\.BaseDoesntExist/, tx);
+  });
+
+  it('[negative] unable to add custom theme if no default theme', async () => {
+    const baseId = await createBase(api, alice, 'no-default-themed-base', 'NDTBase', []);
+    const tx = addTheme(api, alice, baseId, {
+      name: 'custom-theme',
+      properties: [],
+    });
+
+    await expectTxFailure(/rmrkEquip\.NeedsDefaultThemeFirst/, tx);
+  });
+
+  it('[negative] unable to add theme by a not-an-owner', async () => {
+    const baseId = await createBase(api, alice, 'no-default-themed-base', 'NDTBase', []);
+    const tx = addTheme(api, bob, baseId, {
+      name: 'default',
+      properties: [],
+    });
+
+    await expectTxFailure(/rmrkEquip\.PermissionError/, tx);
+  });
+
+  after(async() => { await api.disconnect(); });
+});
addedtests/src/.outdated/rmrk/burnNft.seqtest.tsdiffbeforeafterboth
--- /dev/null
+++ b/tests/src/.outdated/rmrk/burnNft.seqtest.ts
@@ -0,0 +1,170 @@
+import {getApiConnection} from '../substrate/substrate-api';
+import {expectTxFailure, requirePallets, Pallets} from './util/helpers';
+import {NftIdTuple, getChildren} from './util/fetch';
+import {burnNft, createCollection, sendNft, mintNft} from './util/tx';
+
+import chai from 'chai';
+import chaiAsPromised from 'chai-as-promised';
+
+chai.use(chaiAsPromised);
+const expect = chai.expect;
+
+describe('integration test: burn nft', () => {
+  const alice = '//Alice';
+  const bob = '//Bob';
+
+  let api: any;
+  before(async function() {
+    api = await getApiConnection();
+    await requirePallets(this, [Pallets.RmrkCore]);
+  });
+
+
+  it('burn nft', async () => {
+    await createCollection(
+      api,
+      alice,
+      'test-metadata',
+      null,
+      'test-symbol',
+    ).then(async (collectionId) => {
+      const nftId = await mintNft(
+        api,
+        alice,
+        alice,
+        collectionId,
+        'nft-metadata',
+      );
+      await burnNft(api, alice, collectionId, nftId);
+    });
+  });
+
+  it('burn nft with children', async () => {
+    const collectionId = await createCollection(
+      api,
+      alice,
+      'test-metadata',
+      null,
+      'test-symbol',
+    );
+
+    const parentNftId = await mintNft(
+      api,
+      alice,
+      alice,
+      collectionId,
+      'nft-metadata',
+    );
+
+    const childNftId = await mintNft(
+      api,
+      alice,
+      alice,
+      collectionId,
+      'nft-metadata',
+    );
+
+    const newOwnerNFT: NftIdTuple = [collectionId, parentNftId];
+
+    await sendNft(api, 'sent', alice, collectionId, childNftId, newOwnerNFT);
+
+    const childrenBefore = await getChildren(api, collectionId, parentNftId);
+    expect(childrenBefore.length === 1, 'Error: parent NFT should have children')
+      .to.be.true;
+
+    const child = childrenBefore[0];
+    expect(child.collectionId.eq(collectionId), 'Error: invalid child collection Id')
+      .to.be.true;
+
+    expect(child.nftId.eq(childNftId), 'Error: invalid child NFT Id')
+      .to.be.true;
+
+    await burnNft(api, alice, collectionId, parentNftId);
+
+    const childrenAfter = await getChildren(api, collectionId, parentNftId);
+
+    expect(childrenAfter.length === 0, 'Error: children should be burned').to.be.true;
+  });
+
+  it('burn child nft', async () => {
+    const collectionId = await createCollection(
+      api,
+      alice,
+      'test-metadata',
+      null,
+      'test-symbol',
+    );
+
+    const parentNftId = await mintNft(
+      api,
+      alice,
+      alice,
+      collectionId,
+      'nft-metadata',
+    );
+
+    const childNftId = await mintNft(
+      api,
+      alice,
+      alice,
+      collectionId,
+      'nft-metadata',
+    );
+
+    const newOwnerNFT: NftIdTuple = [collectionId, parentNftId];
+
+    await sendNft(api, 'sent', alice, collectionId, childNftId, newOwnerNFT);
+
+    const childrenBefore = await getChildren(api, collectionId, parentNftId);
+    expect(childrenBefore.length === 1, 'Error: parent NFT should have children')
+      .to.be.true;
+
+    const child = childrenBefore[0];
+    expect(child.collectionId.eq(collectionId), 'Error: invalid child collection Id')
+      .to.be.true;
+
+    expect(child.nftId.eq(childNftId), 'Error: invalid child NFT Id')
+      .to.be.true;
+
+    await burnNft(api, alice, collectionId, childNftId);
+
+    const childrenAfter = await getChildren(api, collectionId, parentNftId);
+
+    expect(childrenAfter.length === 0, 'Error: children should be burned').to.be.true;
+  });
+
+  it('[negative] burn non-existing NFT', async () => {
+    await createCollection(
+      api,
+      alice,
+      'test-metadata',
+      null,
+      'test-symbol',
+    ).then(async (collectionId) => {
+      const tx = burnNft(api, alice, collectionId, 99999);
+      await expectTxFailure(/rmrkCore\.NoAvailableNftId/, tx);
+    });
+  });
+
+  it('[negative] burn not an owner NFT user', async () => {
+    await createCollection(
+      api,
+      alice,
+      'test-metadata',
+      null,
+      'test-symbol',
+    ).then(async (collectionId) => {
+      const nftId = await mintNft(
+        api,
+        alice,
+        alice,
+        collectionId,
+        'nft-metadata',
+      );
+      const tx = burnNft(api, bob, collectionId, nftId);
+      await expectTxFailure(/rmrkCore\.NoPermission/, tx);
+    });
+  });
+
+  after(async() => { await api.disconnect(); });
+});
addedtests/src/.outdated/rmrk/changeCollectionIssuer.seqtest.tsdiffbeforeafterboth
--- /dev/null
+++ b/tests/src/.outdated/rmrk/changeCollectionIssuer.seqtest.ts
@@ -0,0 +1,53 @@
+import {getApiConnection} from '../substrate/substrate-api';
+import {expectTxFailure, requirePallets, Pallets} from './util/helpers';
+import {
+  changeIssuer,
+  createCollection,
+} from './util/tx';
+
+describe('integration test: collection issuer', () => {
+  const alice = '//Alice';
+  const bob = '//Bob';
+
+  let api: any;
+  before(async function() {
+    api = await getApiConnection();
+    await requirePallets(this, [Pallets.RmrkCore]);
+  });
+
+
+
+  it('change collection issuer', async () => {
+    await createCollection(
+      api,
+      alice,
+      'test-metadata',
+      null,
+      'test-symbol',
+    ).then(async (collectionId) => {
+      await changeIssuer(api, alice, collectionId, bob);
+    });
+  });
+
+  it('[negative] change not an owner NFT collection issuer', async () => {
+    await createCollection(api, bob, 'test-metadata', null, 'test-symbol').then(async (collectionId) => {
+      const tx = changeIssuer(api, alice, collectionId, bob);
+      await expectTxFailure(/rmrkCore\.NoPermission/, tx);
+    });
+  });
+
+  it('[negative] change non-existigit NFT collection issuer', async () => {
+    await createCollection(
+      api,
+      alice,
+      'test-metadata',
+      null,
+      'test-symbol',
+    ).then(async () => {
+      const tx = changeIssuer(api, alice, 99999, bob);
+      await expectTxFailure(/rmrkCore\.CollectionUnknown/, tx);
+    });
+  });
+
+  after(async() => { await api.disconnect(); });
+});
addedtests/src/.outdated/rmrk/createBase.seqtest.tsdiffbeforeafterboth
--- /dev/null
+++ b/tests/src/.outdated/rmrk/createBase.seqtest.ts
@@ -0,0 +1,88 @@
+import {getApiConnection} from '../substrate/substrate-api';
+import {requirePallets, Pallets} from './util/helpers';
+import {createCollection, createBase} from './util/tx';
+
+describe('integration test: create new Base', () => {
+  let api: any;
+  before(async function() {
+    api = await getApiConnection();
+    await requirePallets(this, [Pallets.RmrkCore, Pallets.RmrkEquip]);
+  });
+
+  const alice = '//Alice';
+
+  it('create empty Base', async () => {
+    await createBase(api, alice, 'empty-base-type', 'EBase', []);
+  });
+
+  it('create Base with fixed part', async () => {
+    await createBase(api, alice, 'fixedpart-base-type', 'FPBase', [
+      {
+        'FixedPart': {
+          id: 42,
+          z: 0,
+          src: 'some-fixed-url',
+        },
+      },
+    ]);
+  });
+
+  it('create Base with slot part (no collection)', async () => {
+    await createBase(api, alice, 'slotpart-base-type', 'SPBase', [
+      {
+        'SlotPart': {
+          id: 112,
+          equippable: 'Empty',
+          z: 0,
+          src: 'some-fallback-slot-url',
+        },
+      },
+    ]);
+  });
+
+  it('create Base with slot part (any collection)', async () => {
+    await createBase(api, alice, 'slotpartany-base-type', 'SPABase', [
+      {
+        'SlotPart': {
+          id: 222,
+          equippable: 'All',
+          z: 1,
+          src: 'some-fallback-slot-url',
+        },
+      },
+    ]);
+  });
+
+  it('create Base with slot part (custom collections)', async () => {
+    const firstCollectionId = await createCollection(
+      api,
+      alice,
+      'first-collection-meta',
+      null,
+      'first-collection',
+    );
+
+    const secondCollectionId = await createCollection(
+      api,
+      alice,
+      'first-collection-meta',
+      null,
+      'first-collection',
+    );
+
+    await createBase(api, alice, 'slotpartcustom-base-type', 'SPCBase', [
+      {
+        'SlotPart': {
+          id: 1024,
+          equippable: {
+            'Custom': [firstCollectionId, secondCollectionId],
+          },
+          z: 2,
+          src: 'some-fallback-slot-url',
+        },
+      },
+    ]);
+  });
+
+  after(async() => { await api.disconnect(); });
+});
addedtests/src/.outdated/rmrk/createCollection.seqtest.tsdiffbeforeafterboth
--- /dev/null
+++ b/tests/src/.outdated/rmrk/createCollection.seqtest.ts
@@ -0,0 +1,25 @@
+import {getApiConnection} from '../substrate/substrate-api';
+import {requirePallets, Pallets} from './util/helpers';
+import {createCollection} from './util/tx';
+
+describe('Integration test: create new collection', () => {
+  let api: any;
+  before(async function () {
+    api = await getApiConnection();
+    await requirePallets(this, [Pallets.RmrkCore]);
+  });
+
+
+
+  const alice = '//Alice';
+
+  it('create NFT collection', async () => {
+    await createCollection(api, alice, 'test-metadata', 42, 'test-symbol');
+  });
+
+  it('create NFT collection without token limit', async () => {
+    await createCollection(api, alice, 'no-limit-metadata', null, 'no-limit-symbol');
+  });
+
+  after(async() => { await api.disconnect(); });
+});
addedtests/src/.outdated/rmrk/deleteCollection.seqtest.tsdiffbeforeafterboth
--- /dev/null
+++ b/tests/src/.outdated/rmrk/deleteCollection.seqtest.ts
@@ -0,0 +1,46 @@
+import {getApiConnection} from '../substrate/substrate-api';
+import {expectTxFailure, requirePallets, Pallets} from './util/helpers';
+import {createCollection, deleteCollection} from './util/tx';
+
+describe('integration test: delete collection', () => {
+  let api: any;
+  before(async function () {
+    api = await getApiConnection();
+    await requirePallets(this, [Pallets.RmrkCore]);
+  });
+
+  const alice = '//Alice';
+  const bob = '//Bob';
+
+  it('delete NFT collection', async () => {
+    await createCollection(
+      api,
+      alice,
+      'test-metadata',
+      null,
+      'test-symbol',
+    ).then(async (collectionId) => {
+      await deleteCollection(api, alice, collectionId.toString());
+    });
+  });
+
+  it('[negative] delete non-existing NFT collection', async () => {
+    const tx = deleteCollection(api, alice, '99999');
+    await expectTxFailure(/rmrkCore\.CollectionUnknown/, tx);
+  });
+
+  it('[negative] delete not an owner NFT collection', async () => {
+    await createCollection(
+      api,
+      alice,
+      'test-metadata',
+      null,
+      'test-symbol',
+    ).then(async (collectionId) => {
+      const tx = deleteCollection(api, bob, collectionId.toString());
+      await expectTxFailure(/rmrkCore.NoPermission/, tx);
+    });
+  });
+
+  after(async() => { await api.disconnect(); });
+});
addedtests/src/.outdated/rmrk/equipNft.seqtest.tsdiffbeforeafterboth
--- /dev/null
+++ b/tests/src/.outdated/rmrk/equipNft.seqtest.ts
@@ -0,0 +1,340 @@
+import {ApiPromise} from '@polkadot/api';
+import {expect} from 'chai';
+import {getApiConnection} from '../substrate/substrate-api';
+import {getNft, NftIdTuple} from './util/fetch';
+import {expectTxFailure, requirePallets, Pallets} from './util/helpers';
+import {
+  addNftComposableResource,
+  addNftSlotResource,
+  createBase,
+  createCollection,
+  equipNft,
+  mintNft,
+  sendNft,
+  unequipNft,
+} from './util/tx';
+
+const alice = '//Alice';
+const bob = '//Bob';
+
+const composableParts: number[] = [5, 2, 7];
+const composableSrc = 'test-cmp-src';
+const composableMetadata = 'test-cmp-metadata';
+const composableLicense = 'test-comp-license';
+const composableThumb = 'test-comp-thumb';
+
+const slotSrc = 'test-slot-src';
+const slotLicense = 'test-slot-license';
+const slotMetadata = 'test-slot-metadata';
+const slotThumb = 'test-slot-thumb';
+
+const slotId = 1;
+
+function createTestCollection(api: ApiPromise): Promise<number> {
+  return createCollection(
+    api,
+    alice,
+    'test-metadata',
+    null,
+    'test-symbol',
+  );
+}
+
+async function mintTestNft(api: ApiPromise, collectionId: number): Promise<number> {
+  return await mintNft(
+    api,
+    alice,
+    alice,
+    collectionId,
+    'nft-metadata',
+  );
+}
+
+async function mintChildNft(api: ApiPromise, collectionId: number, parentNftId: number): Promise<number> {
+  const nftChildId = await mintTestNft(api, collectionId);
+
+  const parentNFT: NftIdTuple = [collectionId, parentNftId];
+
+  await sendNft(api, 'sent', alice, collectionId, nftChildId, parentNFT);
+
+  return nftChildId;
+}
+
+function createTestBase(api: ApiPromise): Promise<number> {
+  return createBase(api, alice, 'test-base', 'DTBase', [
+    {
+      SlotPart: {
+        id: slotId,
+        equippable: 'All',
+        z: 1,
+        src: slotSrc,
+      },
+    },
+  ]);
+}
+
+async function addTestComposable(api: ApiPromise, collectionId: number, nftId: number, baseId: number) {
+  await addNftComposableResource(
+    api,
+    alice,
+    'added',
+    collectionId,
+    nftId,
+    composableParts,
+    baseId,
+    composableSrc,
+    composableMetadata,
+    composableLicense,
+    composableThumb,
+  );
+}
+
+async function addTestSlot(api: ApiPromise, collectionId: number, nftId: number, baseId: number, slotId: number): Promise<number> {
+  return await addNftSlotResource(
+    api,
+    alice,
+    'added',
+    collectionId,
+    nftId,
+    baseId,
+    slotId,
+    slotSrc,
+    slotMetadata,
+    slotLicense,
+    slotThumb,
+  );
+}
+
+async function checkEquipStatus(
+  api: ApiPromise,
+  expectedStatus: 'equipped' | 'unequipped',
+  collectionId: number,
+  nftId: number,
+) {
+  const itemNftDataOpt = await getNft(api, collectionId, nftId);
+  expect(itemNftDataOpt.isSome, 'Error: unable to fetch item NFT data');
+
+  const itemNftData = itemNftDataOpt.unwrap();
+  expect(itemNftData.equipped.isTrue, `Error: item NFT should be ${expectedStatus}`)
+    .to.be.equal(expectedStatus === 'equipped');
+}
+
+describe.skip('integration test: Equip NFT', () => {
+
+  let api: any;
+  
+  before(async function () {
+    api = await getApiConnection();
+    await requirePallets(this, [Pallets.RmrkCore, Pallets.RmrkEquip]);
+  });
+
+  it('equip nft', async () => {
+    const collectionId = await createTestCollection(api);
+    const nftParentId = await mintTestNft(api, collectionId);
+    const nftChildId = await mintChildNft(api, collectionId, nftParentId);
+
+    const baseId = await createTestBase(api);
+
+    await addTestComposable(api, collectionId, nftParentId, baseId);
+    const resourceId = await addTestSlot(api, collectionId, nftChildId, baseId, slotId);
+
+    const equipperNFT: NftIdTuple = [collectionId, nftParentId];
+    const itemNFT: NftIdTuple = [collectionId, nftChildId];
+
+    await equipNft(api, alice, itemNFT, equipperNFT, resourceId, baseId, slotId);
+
+    await checkEquipStatus(api, 'equipped', collectionId, nftChildId);
+  });
+
+  it('unequip nft', async () => {
+    const collectionId = await createTestCollection(api);
+    const nftParentId = await mintTestNft(api, collectionId);
+    const nftChildId = await mintChildNft(api, collectionId, nftParentId);
+
+    const baseId = await createTestBase(api);
+
+    await addTestComposable(api, collectionId, nftParentId, baseId);
+    const resourceId = await addTestSlot(api, collectionId, nftChildId, baseId, slotId);
+
+    const equipperNFT: NftIdTuple = [collectionId, nftParentId];
+    const itemNFT: NftIdTuple = [collectionId, nftChildId];
+
+    await equipNft(api, alice, itemNFT, equipperNFT, resourceId, baseId, slotId);
+
+    await checkEquipStatus(api, 'equipped', collectionId, nftChildId);
+
+    await unequipNft(api, alice, itemNFT, equipperNFT, resourceId, baseId, slotId);
+    await checkEquipStatus(api, 'unequipped', collectionId, nftChildId);
+  });
+
+  it('[negative] equip NFT onto non-existing NFT', async () => {
+    const collectionId = await createTestCollection(api);
+
+    const nftChildId = await mintNft(
+      api,
+      alice,
+      alice,
+      collectionId,
+      'nft-metadata',
+    );
+
+    const itemNFT: NftIdTuple = [collectionId, nftChildId];
+    const invalidEquipperNFT: NftIdTuple = [collectionId, 9999999];
+
+    const baseId = 0;
+    const resourceId = 0;
+
+    const tx = equipNft(api, alice, itemNFT, invalidEquipperNFT, resourceId, baseId, slotId);
+    await expectTxFailure(/rmrkCore\.NoAvailableNftId/, tx);
+  });
+
+  it('[negative] equip non-existing NFT', async () => {
+    const collectionId = await createTestCollection(api);
+    const nftParentId = await mintNft(
+      api,
+      alice,
+      alice,
+      collectionId,
+      'nft-metadata',
+    );
+
+    const baseId = await createTestBase(api);
+
+    await addTestComposable(api, collectionId, nftParentId, baseId);
+
+    const equipperNFT: NftIdTuple = [collectionId, nftParentId];
+    const invalidItemNFT: NftIdTuple = [collectionId, 99999999];
+
+    const resourceId = 0;
+
+    const tx = equipNft(api, alice, invalidItemNFT, equipperNFT, resourceId, baseId, slotId);
+    await expectTxFailure(/rmrkCore\.NoAvailableNftId/, tx);
+  });
+
+  it('[negative] equip NFT by a not-an-owner user', async () => {
+    const collectionId = await createTestCollection(api);
+    const nftParentId = await mintTestNft(api, collectionId);
+    const nftChildId = await mintChildNft(api, collectionId, nftParentId);
+
+    const baseId = await createTestBase(api);
+
+    await addTestComposable(api, collectionId, nftParentId, baseId);
+
+    const equipperNFT: NftIdTuple = [collectionId, nftParentId];
+    const itemNFT: NftIdTuple = [collectionId, nftChildId];
+
+    const resourceId = await addTestSlot(api, collectionId, nftChildId, baseId, slotId);
+
+    const tx = equipNft(api, bob, itemNFT, equipperNFT, resourceId, baseId, slotId);
+    await expectTxFailure(/rmrkEquip\.PermissionError/, tx);
+  });
+
+  it('[negative] unable to equip NFT onto indirect parent NFT', async () => {
+    const collectionId = await createTestCollection(api);
+    const nftParentId = await mintTestNft(api, collectionId);
+    const nftChildId = await mintChildNft(api, collectionId, nftParentId);
+    const nftGrandchildId = await mintChildNft(api, collectionId, nftChildId);
+
+    const baseId = await createTestBase(api);
+
+    await addTestComposable(api, collectionId, nftParentId, baseId);
+    const resourceId = await addTestSlot(api, collectionId, nftGrandchildId, baseId, slotId);
+
+    const equipperNFT: NftIdTuple = [collectionId, nftParentId];
+    const itemNFT: NftIdTuple = [collectionId, nftGrandchildId];
+
+    const tx = equipNft(api, alice, itemNFT, equipperNFT, resourceId, baseId, slotId);
+    await expectTxFailure(/rmrkEquip\.MustBeDirectParent/, tx);
+  });
+
+  it('[negative] unable to equip NFT onto parent NFT with another base', async () => {
+    const collectionId = await createTestCollection(api);
+    const nftParentId = await mintTestNft(api, collectionId);
+    const nftChildId = await mintChildNft(api, collectionId, nftParentId);
+
+    const baseId = await createTestBase(api);
+
+    await addTestComposable(api, collectionId, nftParentId, baseId);
+    const resourceId = await addTestSlot(api, collectionId, nftChildId, baseId, slotId);
+
+    const equipperNFT: NftIdTuple = [collectionId, nftParentId];
+    const itemNFT: NftIdTuple = [collectionId, nftChildId];
+
+    const invalidBaseId = 99999;
+
+    const tx = equipNft(api, alice, itemNFT, equipperNFT, resourceId, invalidBaseId, slotId);
+    await expectTxFailure(/rmrkEquip\.NoResourceForThisBaseFoundOnNft/, tx);
+  });
+
+  it('[negative] unable to equip NFT into slot with another id', async () => {
+    const collectionId = await createTestCollection(api);
+    const nftParentId = await mintTestNft(api, collectionId);
+    const nftChildId = await mintChildNft(api, collectionId, nftParentId);
+
+    const baseId = await createTestBase(api);
+
+    await addTestComposable(api, collectionId, nftParentId, baseId);
+    const resourceId = await addTestSlot(api, collectionId, nftChildId, baseId, slotId);
+
+    const equipperNFT: NftIdTuple = [collectionId, nftParentId];
+    const itemNFT: NftIdTuple = [collectionId, nftChildId];
+
+    const incorrectSlotId = slotId + 1;
+    const tx = equipNft(api, alice, itemNFT, equipperNFT, resourceId, baseId, incorrectSlotId);
+    await expectTxFailure(/rmrkEquip\.ItemHasNoResourceToEquipThere/, tx);
+  });
+
+  it('[negative] unable to equip NFT with incorrect slot (fixed part)', async () => {
+    const collectionId = await createTestCollection(api);
+    const nftParentId = await mintTestNft(api, collectionId);
+    const nftChildId = await mintChildNft(api, collectionId, nftParentId);
+
+    const baseId = await createBase(api, alice, 'test-base', 'DTBase', [
+      {
+        FixedPart: {
+          id: slotId,
+          equippable: 'All',
+          z: 1,
+          src: slotSrc,
+        },
+      },
+    ]);
+
+    await addTestComposable(api, collectionId, nftParentId, baseId);
+    const resourceId = await addTestSlot(api, collectionId, nftChildId, baseId, slotId);
+
+    const equipperNFT: NftIdTuple = [collectionId, nftParentId];
+    const itemNFT: NftIdTuple = [collectionId, nftChildId];
+
+    const tx = equipNft(api, alice, itemNFT, equipperNFT, resourceId, baseId, slotId);
+    await expectTxFailure(/rmrkEquip\.CantEquipFixedPart/, tx);
+  });
+
+  it('[negative] unable to equip NFT from a collection that is not allowed by the slot', async () => {
+    const collectionId = await createTestCollection(api);
+    const nftParentId = await mintTestNft(api, collectionId);
+    const nftChildId = await mintChildNft(api, collectionId, nftParentId);
+
+    const baseId = await createBase(api, alice, 'test-base', 'DTBase', [
+      {
+        SlotPart: {
+          id: 1,
+          z: 1,
+          equippable: 'Empty',
+          src: slotSrc,
+        },
+      },
+    ]);
+
+    await addTestComposable(api, collectionId, nftParentId, baseId);
+    const resourceId = await addTestSlot(api, collectionId, nftChildId, baseId, slotId);
+
+    const equipperNFT: NftIdTuple = [collectionId, nftParentId];
+    const itemNFT: NftIdTuple = [collectionId, nftChildId];
+
+    const tx = equipNft(api, alice, itemNFT, equipperNFT, resourceId, baseId, slotId);
+    await expectTxFailure(/rmrkEquip\.CollectionNotEquippable/, tx);
+  });
+
+  after(async() => { await api.disconnect(); });
+});
addedtests/src/.outdated/rmrk/getOwnedNfts.seqtest.tsdiffbeforeafterboth
--- /dev/null
+++ b/tests/src/.outdated/rmrk/getOwnedNfts.seqtest.ts
@@ -0,0 +1,80 @@
+import {expect} from 'chai';
+import {getApiConnection} from '../substrate/substrate-api';
+import {requirePallets, Pallets} from './util/helpers';
+import {getOwnedNfts} from './util/fetch';
+import {mintNft, createCollection} from './util/tx';
+
+describe('integration test: get owned NFTs', () => {
+  let api: any;
+  
+  before(async function () {
+    api = await getApiConnection();
+    await requirePallets(this, [Pallets.RmrkCore]);
+  });
+
+
+  const alice = '//Alice';
+
+  it('fetch all NFTs owned by a user', async () => {
+    const owner = alice;
+    const collectionMetadata = 'aliceCollectionMetadata';
+    const collectionMax = null;
+    const collectionSymbol = 'AliceSym';
+    const recipientUri = null;
+    const royalty = null;
+    const nftMetadata = 'alice-NFT-metadata';
+
+    const collectionId = await createCollection(
+      api,
+      alice,
+      collectionMetadata,
+      collectionMax,
+      collectionSymbol,
+    );
+
+    const nftIds = [
+      await mintNft(
+        api,
+        alice,
+        owner,
+        collectionId,
+        nftMetadata + '-0',
+        recipientUri,
+        royalty,
+      ),
+      await mintNft(
+        api,
+        alice,
+        owner,
+        collectionId,
+        nftMetadata + '-1',
+        recipientUri,
+        royalty,
+      ),
+      await mintNft(
+        api,
+        alice,
+        owner,
+        collectionId,
+        nftMetadata + '-2',
+        recipientUri,
+        royalty,
+      ),
+    ];
+
+    const ownedNfts = await getOwnedNfts(api, alice, collectionId);
+
+    const isFound = (nftId: number) => {
+      return ownedNfts.find((ownedNftId) => {
+        return ownedNftId === nftId;
+      }) !== undefined;
+    };
+
+    nftIds.forEach((nftId) => {
+      expect(isFound(nftId), `NFT ${nftId} should be owned by ${alice}`)
+        .to.be.true;
+    });
+  });
+
+  after(async() => { await api.disconnect(); });
+});
addedtests/src/.outdated/rmrk/lockCollection.seqtest.tsdiffbeforeafterboth
--- /dev/null
+++ b/tests/src/.outdated/rmrk/lockCollection.seqtest.ts
@@ -0,0 +1,116 @@
+import {getApiConnection} from '../substrate/substrate-api';
+import {expectTxFailure, requirePallets, Pallets} from './util/helpers';
+import {createCollection, lockCollection, mintNft} from './util/tx';
+
+describe('integration test: lock collection', () => {
+  const alice = '//Alice';
+  const bob = '//Bob';
+  const max = 5;
+
+  let api: any;
+  before(async function () {
+    api = await getApiConnection();
+    await requirePallets(this, [Pallets.RmrkCore]);
+  });
+
+  it('lock collection', async () => {
+    await createCollection(
+      api,
+      alice,
+      'test-metadata',
+      null,
+      'test-symbol',
+    ).then(async (collectionId) => {
+      await lockCollection(api, alice, collectionId);
+    });
+  });
+
+  it('[negative] lock non-existing NFT collection', async () => {
+    const tx = lockCollection(api, alice, 99999);
+    await expectTxFailure(/rmrkCore\.CollectionUnknown/, tx);
+  });
+
+  it('[negative] lock not an owner NFT collection issuer', async () => {
+    await createCollection(
+      api,
+      alice,
+      'test-metadata',
+      null,
+      'test-symbol',
+    ).then(async (collectionId) => {
+      const tx = lockCollection(api, bob, collectionId);
+      await expectTxFailure(/rmrkCore\.NoPermission/, tx);
+    });
+  });
+
+  it('lock collection with minting', async () => {
+    await createCollection(
+      api,
+      alice,
+      'test-metadata',
+      max,
+      'test-symbol',
+    ).then(async (collectionId) => {
+      for (let i = 0; i < 5; i++) {
+        await mintNft(
+          api,
+          alice,
+          alice,
+          collectionId,
+          'test-metadata',
+          null,
+          null,
+        );
+      }
+      await lockCollection(api, alice, collectionId, max);
+    });
+  });
+
+  it('[negative] unable to mint NFT inside a locked collection', async () => {
+    await createCollection(
+      api,
+      alice,
+      'test-metadata',
+      max,
+      'test-symbol',
+    ).then(async (collectionId) => {
+      await lockCollection(api, alice, collectionId);
+      const tx = mintNft(
+        api,
+        alice,
+        alice,
+        collectionId,
+        'test-metadata',
+        null,
+        null,
+      );
+      await expectTxFailure(/rmrkCore\.CollectionFullOrLocked/, tx);
+    });
+  });
+
+  it('[negative] unable to mint NFT inside a full collection', async () => {
+    await createCollection(api, alice, 'test-metadata', 1, 'test-symbol').then(async (collectionId) => {
+      await mintNft(
+        api,
+        alice,
+        alice,
+        collectionId,
+        'test-metadata',
+        null,
+        null,
+      );
+      const tx = mintNft(
+        api,
+        alice,
+        alice,
+        collectionId,
+        'test-metadata',
+        null,
+        null,
+      );
+      await expectTxFailure(/rmrkCore\.CollectionFullOrLocked/, tx);
+    });
+  });
+
+  after(async() => { await api.disconnect(); });
+});
addedtests/src/.outdated/rmrk/mintNft.seqtest.tsdiffbeforeafterboth
--- /dev/null
+++ b/tests/src/.outdated/rmrk/mintNft.seqtest.ts
@@ -0,0 +1,211 @@
+import {expect} from 'chai';
+import {getApiConnection} from '../substrate/substrate-api';
+import {getNft} from './util/fetch';
+import {expectTxFailure, requirePallets, Pallets} from './util/helpers';
+import {createCollection, mintNft} from './util/tx';
+
+describe('integration test: mint new NFT', () => {
+  let api: any;
+ 
+  before(async function () {
+    api = await getApiConnection();
+    await requirePallets(this, [Pallets.RmrkCore]);
+  });
+
+
+  const alice = '//Alice';
+  const bob = '//Bob';
+  const maxCollectionId = 0xFFFFFFFF;
+  const maxNftId = 0xFFFFFFFF;
+
+  it('mint NFT', async () => {
+    const owner = null;
+    const collectionMetadata = 'mintingCollectionMetadata';
+    const collectionMax = null;
+    const collectionSymbol = 'MCS';
+    const recipientUri = null;
+    const royalty = null;
+    const nftMetadata = 'NFT-test-metadata';
+
+    const collectionId = await createCollection(
+      api,
+      alice,
+      collectionMetadata,
+      collectionMax,
+      collectionSymbol,
+    );
+
+    await mintNft(
+      api,
+      alice,
+      owner,
+      collectionId,
+      nftMetadata,
+      recipientUri,
+      royalty,
+    );
+  });
+
+  it('mint NFT and set another owner', async () => {
+    const owner = bob;
+    const collectionMetadata = 'setOwnerCollectionMetadata';
+    const collectionMax = null;
+    const collectionSymbol = 'SOCS';
+    const recipientUri = null;
+    const royalty = null;
+    const nftMetadata = 'setOwner-NFT-metadata';
+
+    const collectionId = await createCollection(
+      api,
+      alice,
+      collectionMetadata,
+      collectionMax,
+      collectionSymbol,
+    );
+
+    await mintNft(
+      api,
+      alice,
+      owner,
+      collectionId,
+      nftMetadata,
+      recipientUri,
+      royalty,
+    );
+  });
+
+  it('mint NFT with recipient and roalty', async () => {
+    const owner = alice;
+    const collectionMetadata = 'mintingCollectionMetadata';
+    const collectionMax = null;
+    const collectionSymbol = 'MCS';
+    const recipientUri = bob;
+    const royalty = 70000;
+    const nftMetadata = 'recipient-royalty-NFT-test-metadata';
+
+    const collectionId = await createCollection(
+      api,
+      alice,
+      collectionMetadata,
+      collectionMax,
+      collectionSymbol,
+    );
+
+    await mintNft(
+      api,
+      alice,
+      owner,
+      collectionId,
+      nftMetadata,
+      recipientUri,
+      royalty,
+    );
+  });
+
+  it('mint NFT with resources', async () => {
+    const owner = alice;
+    const collectionMetadata = 'mintingCollectionMetadata';
+    const collectionMax = null;
+    const collectionSymbol = 'MCS';
+    const nftMetadata = 'NFT-with-resources-test-metadata';
+    const resources = [
+      {
+        basic: {
+          metadata: 'basic-resource-nft-minting',
+        },
+      }, {
+        slot: {
+          metadata: 'slot-resource-nft-minting',
+          slot: 9,
+        },
+      }, {
+        composable: {
+          metadata: 'composable-resource-nft-minting',
+          parts: [0, 5, 2],
+        },
+      }, {
+        slot: {
+          metadata: 'slot-resource-nft-minting-2',
+          thumb: 'srnm2',
+          base: 5,
+        },
+      },
+    ];
+
+    const collectionId = await createCollection(
+      api,
+      alice,
+      collectionMetadata,
+      collectionMax,
+      collectionSymbol,
+    );
+
+    await mintNft(
+      api,
+      alice,
+      owner,
+      collectionId,
+      nftMetadata,
+      null,
+      null,
+      true,
+      resources,
+    );
+  });
+
+  it('[negative] unable to mint NFT within non-existing collection', async () => {
+    const owner = alice;
+    const recipientUri = null;
+    const royalty = null;
+    const nftMetadata = 'NFT-test-metadata';
+
+    const tx = mintNft(
+      api,
+      alice,
+      owner,
+      maxCollectionId,
+      nftMetadata,
+      recipientUri,
+      royalty,
+    );
+
+    await expectTxFailure(/rmrkCore\.CollectionUnknown/, tx);
+  });
+
+  it("[negative] unable to mint NFT by a user that isn't the owner of the collection", async () => {
+    const owner = alice;
+    const collectionMetadata = 'mintingCollectionMetadata';
+    const collectionMax = null;
+    const collectionSymbol = 'MCS';
+    const recipientUri = null;
+    const royalty = null;
+    const nftMetadata = 'NFT-test-metadata';
+
+    const collectionId = await createCollection(
+      api,
+      alice,
+      collectionMetadata,
+      collectionMax,
+      collectionSymbol,
+    );
+
+    const tx = mintNft(
+      api,
+      bob,
+      owner,
+      collectionId,
+      nftMetadata,
+      recipientUri,
+      royalty,
+    );
+
+    await expectTxFailure(/rmrkCore\.NoPermission/, tx);
+  });
+
+  it('[negative] unable to fetch non-existing NFT', async () => {
+    const nft = await getNft(api, maxCollectionId, maxNftId);
+    expect(nft.isSome).to.be.false;
+  });
+
+  after(async() => { await api.disconnect(); });
+});
addedtests/src/.outdated/rmrk/rejectNft.seqtest.tsdiffbeforeafterboth
--- /dev/null
+++ b/tests/src/.outdated/rmrk/rejectNft.seqtest.ts
@@ -0,0 +1,94 @@
+import {expect} from 'chai';
+import {getApiConnection} from '../substrate/substrate-api';
+import {
+  createCollection,
+  mintNft,
+  sendNft,
+  rejectNft,
+} from './util/tx';
+import {NftIdTuple} from './util/fetch';
+import {isNftChildOfAnother, expectTxFailure, requirePallets, Pallets} from './util/helpers';
+
+describe('integration test: reject NFT', () => {
+  let api: any;
+  before(async function () {
+    api = await getApiConnection();
+    await requirePallets(this, [Pallets.RmrkCore]);
+  });
+
+
+
+  const alice = '//Alice';
+  const bob = '//Bob';
+
+  const createTestCollection = async (issuerUri: string) => {
+    return await createCollection(
+      api,
+      issuerUri,
+      'reject-metadata',
+      null,
+      'rjct',
+    );
+  };
+
+  it('reject NFT', async () => {
+    const ownerAlice = alice;
+    const ownerBob = bob;
+
+    const aliceCollectionId = await createTestCollection(alice);
+    const bobCollectionId = await createTestCollection(bob);
+
+    const parentNftId = await mintNft(api, alice, ownerAlice, aliceCollectionId, 'parent-nft-metadata');
+    const childNftId = await mintNft(api, bob, ownerBob, bobCollectionId, 'child-nft-metadata');
+
+    const newOwnerNFT: NftIdTuple = [aliceCollectionId, parentNftId];
+
+    await sendNft(api, 'pending', ownerBob, bobCollectionId, childNftId, newOwnerNFT);
+    await rejectNft(api, alice, bobCollectionId, childNftId);
+
+    const isChild = await isNftChildOfAnother(api, bobCollectionId, childNftId, newOwnerNFT);
+    expect(isChild, 'Error: rejected NFT is still a child of the target NFT').to.be.false;
+  });
+
+  it('[negative] unable to reject NFT by a not-an-owner', async () => {
+    const ownerAlice = alice;
+    const ownerBob = bob;
+
+    const aliceCollectionId = await createTestCollection(alice);
+    const bobCollectionId = await createTestCollection(bob);
+
+    const parentNftId = await mintNft(api, alice, ownerAlice, aliceCollectionId, 'parent-nft-metadata');
+    const childNftId = await mintNft(api, bob, ownerBob, bobCollectionId, 'child-nft-metadata');
+
+    const newOwnerNFT: NftIdTuple = [aliceCollectionId, parentNftId];
+
+    await sendNft(api, 'pending', ownerBob, bobCollectionId, childNftId, newOwnerNFT);
+    const tx = rejectNft(api, bob, bobCollectionId, childNftId);
+
+    await expectTxFailure(/rmrkCore\.CannotRejectNonOwnedNft/, tx);
+  });
+
+  it('[negative] unable to reject non-existing NFT', async () => {
+    const maxNftId = 0xFFFFFFFF;
+
+    const collectionId = await createTestCollection(alice);
+
+    const tx = rejectNft(api, alice, collectionId, maxNftId);
+
+    await expectTxFailure(/rmrkCore\.NoAvailableNftId/, tx);
+  });
+
+  it('[negative] unable to reject NFT which is not sent', async () => {
+    const ownerAlice = alice;
+
+    const collectionId = await createTestCollection(alice);
+
+    const nftId = await mintNft(api, alice, ownerAlice, collectionId, 'parent-nft-metadata');
+
+    const tx = rejectNft(api, alice, collectionId, nftId);
+
+    await expectTxFailure(/rmrkCore\.CannotRejectNonPendingNft/, tx);
+  });
+
+  after(async() => { await api.disconnect(); });
+});
addedtests/src/.outdated/rmrk/removeResource.seqtest.tsdiffbeforeafterboth
--- /dev/null
+++ b/tests/src/.outdated/rmrk/removeResource.seqtest.ts
@@ -0,0 +1,340 @@
+import {getApiConnection} from '../substrate/substrate-api';
+import {NftIdTuple} from './util/fetch';
+import {expectTxFailure, requirePallets, Pallets} from './util/helpers';
+import {
+  acceptResourceRemoval, addNftBasicResource, createCollection, mintNft, removeNftResource, sendNft,
+} from './util/tx';
+
+
+
+
+describe('Integration test: remove nft resource', () => {
+  let api: any;
+  before(async function() {
+    api = await getApiConnection();
+    await requirePallets(this, [Pallets.RmrkCore]);
+  });
+
+  const alice = '//Alice';
+  const bob = '//Bob';
+  const src = 'test-basic-src';
+  const metadata = 'test-basic-metadata';
+  const license = 'test-basic-license';
+  const thumb = 'test-basic-thumb';
+
+  it('deleting a resource directly by the NFT owner', async () => {
+    const collectionIdAlice = await createCollection(
+      api,
+      alice,
+      'test-metadata',
+      null,
+      'test-symbol',
+    );
+
+    const nftAlice = await mintNft(
+      api,
+      alice,
+      alice,
+      collectionIdAlice,
+      'nft-metadata',
+    );
+
+    const resourceId = await addNftBasicResource(
+      api,
+      alice,
+      'added',
+      collectionIdAlice,
+      nftAlice,
+      src,
+      metadata,
+      license,
+      thumb,
+    );
+
+    await removeNftResource(api, 'removed', alice, collectionIdAlice, nftAlice, resourceId);
+  });
+
+  it('deleting resources indirectly by the NFT owner', async () => {
+    const collectionIdAlice = await createCollection(
+      api,
+      alice,
+      'test-metadata',
+      null,
+      'test-symbol',
+    );
+
+    const parentNftId = await mintNft(api, alice, alice, collectionIdAlice, 'parent-nft-metadata');
+    const childNftId = await mintNft(api, alice, alice, collectionIdAlice, 'child-nft-metadata');
+
+    const resourceId = await addNftBasicResource(
+      api,
+      alice,
+      'added',
+      collectionIdAlice,
+      childNftId,
+      src,
+      metadata,
+      license,
+      thumb,
+    );
+
+    const newOwnerNFT: NftIdTuple = [collectionIdAlice, parentNftId];
+
+    await sendNft(api, 'sent', alice, collectionIdAlice, childNftId, newOwnerNFT);
+
+    await removeNftResource(api, 'removed', alice, collectionIdAlice, childNftId, resourceId);
+  });
+
+  it('deleting a resource by the collection owner', async () => {
+    const collectionIdAlice = await createCollection(
+      api,
+      alice,
+      'test-metadata',
+      null,
+      'test-symbol',
+    );
+
+    const nftBob = await mintNft(
+      api,
+      alice,
+      bob,
+      collectionIdAlice,
+      'nft-metadata',
+    );
+
+    const resourceId = await addNftBasicResource(
+      api,
+      alice,
+      'pending',
+      collectionIdAlice,
+      nftBob,
+      src,
+      metadata,
+      license,
+      thumb,
+    );
+
+    await removeNftResource(api, 'pending', alice, collectionIdAlice, nftBob, resourceId);
+    await acceptResourceRemoval(api, bob, collectionIdAlice, nftBob, resourceId);
+  });
+
+  it('deleting a resource in a nested NFT by the collection owner', async () => {
+    const collectionIdAlice = await createCollection(
+      api,
+      alice,
+      'test-metadata',
+      null,
+      'test-symbol',
+    );
+
+    const parentNftId = await mintNft(
+      api,
+      alice,
+      bob,
+      collectionIdAlice,
+      'parent-nft-metadata',
+    );
+    const childNftId = await mintNft(
+      api,
+      alice,
+      bob,
+      collectionIdAlice,
+      'child-nft-metadata',
+    );
+
+    const resourceId = await addNftBasicResource(
+      api,
+      alice,
+      'pending',
+      collectionIdAlice,
+      childNftId,
+      src,
+      metadata,
+      license,
+      thumb,
+    );
+
+    const newOwnerNFT: NftIdTuple = [collectionIdAlice, parentNftId];
+
+    await sendNft(api, 'sent', bob, collectionIdAlice, childNftId, newOwnerNFT);
+
+    await removeNftResource(api, 'pending', alice, collectionIdAlice, childNftId, resourceId);
+    await acceptResourceRemoval(api, bob, collectionIdAlice, childNftId, resourceId);
+  });
+
+  it('[negative]: can\'t delete a resource in a non-existing collection', async () => {
+    const collectionIdAlice = await createCollection(
+      api,
+      alice,
+      'test-metadata',
+      null,
+      'test-symbol',
+    );
+
+    const nftAlice = await mintNft(
+      api,
+      alice,
+      alice,
+      collectionIdAlice,
+      'nft-metadata',
+    );
+
+    const resourceId = await addNftBasicResource(
+      api,
+      alice,
+      'added',
+      collectionIdAlice,
+      nftAlice,
+      src,
+      metadata,
+      license,
+      thumb,
+    );
+
+    const tx = removeNftResource(api, 'removed', alice, 0xFFFFFFFF, nftAlice, resourceId);
+    await expectTxFailure(/rmrkCore\.CollectionUnknown/, tx); // FIXME: inappropriate error message (NoAvailableNftId)
+  });
+
+  it('[negative]: only collection owner can delete a resource', async () => {
+    const collectionIdAlice = await createCollection(
+      api,
+      alice,
+      'test-metadata',
+      null,
+      'test-symbol',
+    );
+
+    const nftAlice = await mintNft(
+      api,
+      alice,
+      alice,
+      collectionIdAlice,
+      'nft-metadata',
+    );
+
+    const resourceId = await addNftBasicResource(
+      api,
+      alice,
+      'added',
+      collectionIdAlice,
+      nftAlice,
+      src,
+      metadata,
+      license,
+      thumb,
+    );
+
+    const tx = removeNftResource(api, 'removed', bob, collectionIdAlice, nftAlice, resourceId);
+    await expectTxFailure(/rmrkCore\.NoPermission/, tx);
+  });
+
+  it('[negative]: cannot delete a resource that does not exist', async () => {
+    const collectionIdAlice = await createCollection(
+      api,
+      alice,
+      'test-metadata',
+      null,
+      'test-symbol',
+    );
+
+    const nftAlice = await mintNft(
+      api,
+      alice,
+      alice,
+      collectionIdAlice,
+      'nft-metadata',
+    );
+
+    const tx = removeNftResource(api, 'removed', alice, collectionIdAlice, nftAlice, 127);
+    await expectTxFailure(/rmrkCore\.ResourceDoesntExist/, tx);
+  });
+
+  it('[negative]: Cannot accept deleting resource without owner attempt do delete it', async () => {
+    const collectionIdAlice = await createCollection(
+      api,
+      alice,
+      'test-metadata',
+      null,
+      'test-symbol',
+    );
+
+    const nftBob = await mintNft(
+      api,
+      alice,
+      bob,
+      collectionIdAlice,
+      'nft-metadata',
+    );
+
+    const resourceId = await addNftBasicResource(
+      api,
+      alice,
+      'pending',
+      collectionIdAlice,
+      nftBob,
+      src,
+      metadata,
+      license,
+      thumb,
+    );
+
+    const tx = acceptResourceRemoval(api, bob, collectionIdAlice, nftBob, resourceId);
+    await expectTxFailure(/rmrkCore\.ResourceNotPending/, tx);
+  });
+
+  it('[negative]: cannot confirm the deletion of a non-existing resource', async () => {
+    const collectionIdAlice = await createCollection(
+      api,
+      alice,
+      'test-metadata',
+      null,
+      'test-symbol',
+    );
+
+    const nftBob = await mintNft(
+      api,
+      alice,
+      bob,
+      collectionIdAlice,
+      'nft-metadata',
+    );
+
+    const tx = acceptResourceRemoval(api, bob, collectionIdAlice, nftBob, 127);
+    await expectTxFailure(/rmrkCore\.ResourceDoesntExist/, tx);
+  });
+
+  it('[negative]: Non-owner user cannot confirm the deletion of resource', async () => {
+    const collectionIdAlice = await createCollection(
+      api,
+      alice,
+      'test-metadata',
+      null,
+      'test-symbol',
+    );
+
+    const nftAlice = await mintNft(
+      api,
+      alice,
+      alice,
+      collectionIdAlice,
+      'nft-metadata',
+    );
+
+    const resourceId = await addNftBasicResource(
+      api,
+      alice,
+      'added',
+      collectionIdAlice,
+      nftAlice,
+      src,
+      metadata,
+      license,
+      thumb,
+    );
+
+    const tx = acceptResourceRemoval(api, bob, collectionIdAlice, nftAlice, resourceId);
+    await expectTxFailure(/rmrkCore\.NoPermission/, tx);
+  });
+
+  after(async() => { await api.disconnect(); });
+});
addedtests/src/.outdated/rmrk/rmrkIsolation.seqtest.tsdiffbeforeafterboth
--- /dev/null
+++ b/tests/src/.outdated/rmrk/rmrkIsolation.seqtest.ts
@@ -0,0 +1,225 @@
+import {executeTransaction} from '../substrate/substrate-api';
+import {IKeyringPair} from '@polkadot/types/types';
+import {itSub, expect, usingPlaygrounds, Pallets, requirePalletsOrSkip} from '../../util';
+import {UniqueHelper} from '../../util/playgrounds/unique';
+
+let alice: IKeyringPair;
+let bob: IKeyringPair;
+
+async function createRmrkCollection(helper: UniqueHelper, sender: IKeyringPair): Promise<{uniqueId: number, rmrkId: number}> {
+  const result = await helper.executeExtrinsic(sender, 'api.tx.rmrkCore.createCollection', ['metadata', null, 'symbol'], true);
+
+  const uniqueId = helper.util.extractCollectionIdFromCreationResult(result);
+
+  let rmrkId = null;
+  result.result.events.forEach(({event: {data, method, section}}) => {
+    if ((section === 'rmrkCore') && (method === 'CollectionCreated')) {
+      rmrkId = parseInt(data[1].toString(), 10);
+    }
+  });
+
+  if (rmrkId === null) {
+    throw Error('No rmrkCore.CollectionCreated event was found!');
+  }
+
+  return {
+    uniqueId,
+    rmrkId,
+  };
+}
+
+async function createRmrkNft(helper: UniqueHelper, sender: IKeyringPair, collectionId: number): Promise<number> {
+  const result = await helper.executeExtrinsic(
+    sender,
+    'api.tx.rmrkCore.mintNft',
+    [
+      sender.address,
+      collectionId,
+      sender.address,
+      null,
+      'nft-metadata',
+      true,
+      null,
+    ],
+    true,
+  );
+
+  let rmrkNftId = null;
+  result.result.events.forEach(({event: {data, method, section}}) => {
+    if ((section === 'rmrkCore') && (method === 'NftMinted')) {
+      rmrkNftId = parseInt(data[2].toString(), 10);
+    }
+  });
+
+  if (rmrkNftId === null) {
+    throw Error('No rmrkCore.NftMinted event was found!');
+  }
+
+  return rmrkNftId;
+}
+
+describe('RMRK External Integration Test', () => {
+  before(async function() {
+    await usingPlaygrounds(async (_helper, privateKey) => {
+      alice = await privateKey('//Alice');
+    });
+  });
+
+  itSub.ifWithPallets('Creates a new RMRK collection that is mapped to a different ID and is tagged as external', [Pallets.RmrkCore], async ({helper}) => {
+    // throw away collection to bump last Unique collection ID to test ID mapping
+    await helper.nft.mintCollection(alice, {tokenPrefix: 'unqt'});
+
+    const collectionIds = await createRmrkCollection(helper, alice);
+
+    expect(collectionIds.rmrkId).to.be.lessThan(collectionIds.uniqueId, 'collection ID mapping');
+
+    const collection = (await helper.nft.getCollectionObject(collectionIds.uniqueId).getData())!; // (await getDetailedCollectionInfo(api, collectionIds.uniqueId))!;
+    expect(collection.raw.readOnly, 'tagged external').to.be.true;
+  });
+});
+
+describe('Negative Integration Test: External Collections, Internal Ops', () => {
+  let uniqueCollectionId: number;
+  let rmrkCollectionId: number;
+  let rmrkNftId: number;
+  let normalizedAlice: {Substrate: string};
+
+  before(async function() {
+    await usingPlaygrounds(async (helper, privateKey) => {
+      alice = await privateKey('//Alice');
+      bob = await privateKey('//Bob');
+      normalizedAlice = {Substrate: helper.address.normalizeSubstrateToChainFormat(alice.address)};
+
+      requirePalletsOrSkip(this, helper, [Pallets.RmrkCore]);
+
+      const collectionIds = await createRmrkCollection(helper, alice);
+      uniqueCollectionId = collectionIds.uniqueId;
+      rmrkCollectionId = collectionIds.rmrkId;
+
+      rmrkNftId = await createRmrkNft(helper, alice, rmrkCollectionId);
+    });
+  });
+
+  itSub.ifWithPallets('[Negative] Forbids Unique operations with an external collection, handled by dispatch_call', [Pallets.RmrkCore], async ({helper}) => {
+    // Collection item creation
+
+    await expect(helper.nft.mintToken(alice, {collectionId: uniqueCollectionId, owner: {Substrate: alice.address}}), 'creating item')
+      .to.be.rejectedWith(/common\.CollectionIsExternal/);
+
+    const txCreateMultipleItems = helper.getApi().tx.unique.createMultipleItems(uniqueCollectionId, normalizedAlice, [{NFT: {}}, {NFT: {}}]);
+    await expect(executeTransaction(helper.getApi(), alice, txCreateMultipleItems), 'creating multiple')
+      .to.be.rejectedWith(/common\.CollectionIsExternal/);
+  
+    await expect(helper.nft.mintMultipleTokens(alice, uniqueCollectionId, [{owner: {Substrate: alice.address}}]), 'creating multiple ex')
+      .to.be.rejectedWith(/common\.CollectionIsExternal/);
+
+    // Collection properties
+
+    await expect(helper.nft.setProperties(alice, uniqueCollectionId, [{key: 'a', value: '1'}, {key: 'b'}]), 'setting collection properties')
+      .to.be.rejectedWith(/common\.CollectionIsExternal/);
+
+    await expect(helper.nft.deleteProperties(alice, uniqueCollectionId, ['a']), 'deleting collection properties')
+      .to.be.rejectedWith(/common\.CollectionIsExternal/);
+
+    await expect(helper.nft.setTokenPropertyPermissions(alice, uniqueCollectionId, [{key: 'a', permission: {mutable: true}}]), 'setting property permissions')
+      .to.be.rejectedWith(/common\.CollectionIsExternal/);
+
+    // NFT
+
+    await expect(helper.nft.burnToken(alice, uniqueCollectionId, rmrkNftId, 1n), 'burning')
+      .to.be.rejectedWith(/common\.CollectionIsExternal/);
+
+    await expect(helper.nft.burnTokenFrom(alice, uniqueCollectionId, rmrkNftId, {Substrate: alice.address}, 1n), 'burning-from')
+      .to.be.rejectedWith(/common\.CollectionIsExternal/);
+
+    await expect(helper.nft.transferToken(alice, uniqueCollectionId, rmrkNftId, {Substrate: bob.address}), 'transferring')
+      .to.be.rejectedWith(/common\.CollectionIsExternal/);
+
+    await expect(helper.nft.approveToken(alice, uniqueCollectionId, rmrkNftId, {Substrate: bob.address}), 'approving')
+      .to.be.rejectedWith(/common\.CollectionIsExternal/);
+
+    await expect(helper.nft.transferTokenFrom(alice, uniqueCollectionId, rmrkNftId, {Substrate: alice.address}, {Substrate: bob.address}), 'transferring-from')
+      .to.be.rejectedWith(/common\.CollectionIsExternal/);
+
+    // NFT properties
+
+    await expect(helper.nft.setTokenProperties(alice, uniqueCollectionId, rmrkNftId, [{key: 'a', value: '2'}]), 'setting token properties')
+      .to.be.rejectedWith(/common\.CollectionIsExternal/);
+
+    await expect(helper.nft.deleteTokenProperties(alice, uniqueCollectionId, rmrkNftId, ['a']))
+      .to.be.rejectedWith(/common\.CollectionIsExternal/);
+  });
+
+  itSub.ifWithPallets('[Negative] Forbids Unique collection operations with an external collection', [Pallets.RmrkCore], async ({helper}) => {
+    await expect(helper.nft.burn(alice, uniqueCollectionId), 'destroying collection')
+      .to.be.rejectedWith(/common\.CollectionIsExternal/);
+
+    // Allow list
+
+    await expect(helper.nft.addToAllowList(alice, uniqueCollectionId, {Substrate: bob.address}), 'adding to allow list')
+      .to.be.rejectedWith(/common\.CollectionIsExternal/);
+
+    await expect(helper.nft.removeFromAllowList(alice, uniqueCollectionId, {Substrate: bob.address}), 'removing from allowlist')
+      .to.be.rejectedWith(/common\.CollectionIsExternal/);
+
+    // Owner / Admin / Sponsor
+
+    await expect(helper.nft.changeOwner(alice, uniqueCollectionId, bob.address), 'changing owner')
+      .to.be.rejectedWith(/common\.CollectionIsExternal/);
+
+    await expect(helper.nft.addAdmin(alice, uniqueCollectionId, {Substrate: bob.address}), 'adding admin')
+      .to.be.rejectedWith(/common\.CollectionIsExternal/);
+
+    await expect(helper.nft.removeAdmin(alice, uniqueCollectionId, {Substrate: bob.address}), 'removing admin')
+      .to.be.rejectedWith(/common\.CollectionIsExternal/);
+
+    await expect(helper.nft.setSponsor(alice, uniqueCollectionId, bob.address), 'setting sponsor')
+      .to.be.rejectedWith(/common\.CollectionIsExternal/);
+
+    await expect(helper.nft.confirmSponsorship(alice, uniqueCollectionId), 'confirming sponsor')
+      .to.be.rejectedWith(/common\.CollectionIsExternal/);
+
+    await expect(helper.nft.removeSponsor(alice, uniqueCollectionId), 'removing sponsor')
+      .to.be.rejectedWith(/common\.CollectionIsExternal/);
+    
+    // Limits / permissions / transfers
+
+    const txSetTransfers = helper.getApi().tx.unique.setTransfersEnabledFlag(uniqueCollectionId, true);
+    await expect(executeTransaction(helper.getApi(), alice, txSetTransfers), 'setting transfers enabled flag')
+      .to.be.rejectedWith(/common\.CollectionIsExternal/);
+
+    await expect(helper.nft.setLimits(alice, uniqueCollectionId, {transfersEnabled: false}), 'setting collection limits')
+      .to.be.rejectedWith(/common\.CollectionIsExternal/);
+
+    await expect(helper.nft.setPermissions(alice, uniqueCollectionId, {access: 'AllowList'}), 'setting collection permissions')
+      .to.be.rejectedWith(/common\.CollectionIsExternal/);
+  });
+});
+
+describe('Negative Integration Test: Internal Collections, External Ops', () => {
+  let collectionId: number;
+  let nftId: number;
+
+  before(async () => {
+    await usingPlaygrounds(async (helper, privateKey) => {
+      alice = await privateKey('//Alice');
+      bob = await privateKey('//Bob');
+
+      const collection = await helper.nft.mintCollection(alice, {tokenPrefix: 'iceo'});
+      collectionId = collection.collectionId;
+      nftId = (await collection.mintToken(alice)).tokenId;
+    });
+  });
+
+  itSub.ifWithPallets('[Negative] Forbids RMRK operations with the internal collection and NFT (due to the lack of mapping)', [Pallets.RmrkCore], async ({helper}) => {
+    const api = helper.getApi();
+
+    const txChangeOwner = api.tx.rmrkCore.changeCollectionIssuer(collectionId, bob.address);
+    await expect(executeTransaction(api, alice, txChangeOwner), 'changing collection issuer')
+      .to.be.rejectedWith(/rmrkCore\.CollectionUnknown/);
+
+    const maxBurns = 10;
+    const txBurnItem = api.tx.rmrkCore.burnNft(collectionId, nftId, maxBurns);
+    await expect(executeTransaction(api, alice, txBurnItem), 'burning NFT').to.be.rejectedWith(/rmrkCore\.CollectionUnknown/);
+  });
+});
addedtests/src/.outdated/rmrk/sendNft.seqtest.tsdiffbeforeafterboth
--- /dev/null
+++ b/tests/src/.outdated/rmrk/sendNft.seqtest.ts
@@ -0,0 +1,255 @@
+import {expect} from 'chai';
+import {getApiConnection} from '../substrate/substrate-api';
+import {createCollection, mintNft, sendNft} from './util/tx';
+import {NftIdTuple} from './util/fetch';
+import {isNftChildOfAnother, expectTxFailure, requirePallets, Pallets} from './util/helpers';
+
+describe('integration test: send NFT', () => {
+  let api: any;
+  before(async function () {
+    api = await getApiConnection();
+    await requirePallets(this, [Pallets.RmrkCore]);
+  });
+
+  const maxNftId = 0xFFFFFFFF;
+
+  const alice = '//Alice';
+  const bob = '//Bob';
+
+  const createTestCollection = async (issuerUri: string) => {
+    return await createCollection(
+      api,
+      issuerUri,
+      'nft-collection-metadata',
+      null,
+      'nft-collection',
+    );
+  };
+
+
+  it('send NFT to another user', async () => {
+    const originalOwnerUri = alice;
+    const newOwnerUri = bob;
+
+    const collectionId = await createTestCollection(alice);
+
+    const nftId = await mintNft(api, alice, originalOwnerUri, collectionId, 'nft-metadata');
+
+    await sendNft(api, 'sent', originalOwnerUri, collectionId, nftId, newOwnerUri);
+  });
+
+  it('[negative] unable to send non-existing NFT', async () => {
+    const originalOwnerUri = alice;
+    const newOwnerUri = bob;
+
+    const collectionId = 0;
+    const tx = sendNft(api, 'sent', originalOwnerUri, collectionId, maxNftId, newOwnerUri);
+
+    await expectTxFailure(/rmrkCore\.NoAvailableNftId/, tx);
+  });
+
+  it('[negative] unable to send NFT by a not-an-owner', async () => {
+    const originalOwnerUri = alice;
+    const newOwnerUri = bob;
+
+    const collectionId = await createTestCollection(alice);
+
+    const nftId = await mintNft(api, alice, originalOwnerUri, collectionId, 'nft-metadata');
+
+    const tx = sendNft(api, 'sent', newOwnerUri, collectionId, nftId, newOwnerUri);
+    await expectTxFailure(/rmrkCore\.NoPermission/, tx);
+  });
+
+  it('send NFT to another NFT (same owner)', async () => {
+    const originalOwnerUri = alice;
+
+    const collectionId = await createTestCollection(alice);
+
+    const parentNftId = await mintNft(api, alice, originalOwnerUri, collectionId, 'parent-nft-metadata');
+    const childNftId = await mintNft(api, alice, originalOwnerUri, collectionId, 'child-nft-metadata');
+
+    const newOwnerNFT: NftIdTuple = [collectionId, parentNftId];
+
+    await sendNft(api, 'sent', alice, collectionId, childNftId, newOwnerNFT);
+
+    const isChild = await isNftChildOfAnother(api, collectionId, childNftId, newOwnerNFT);
+    expect(isChild).to.be.true;
+  });
+
+  it('[negative] send non-existing NFT to another NFT', async () => {
+    const originalOwnerUri = alice;
+
+    const collectionId = await createTestCollection(alice);
+
+    const parentNftId = await mintNft(api, alice, originalOwnerUri, collectionId, 'parent-nft-metadata');
+    const childNftId = maxNftId;
+
+    const newOwnerNFT: NftIdTuple = [collectionId, parentNftId];
+
+    const tx = sendNft(api, 'sent', alice, collectionId, childNftId, newOwnerNFT);
+
+    await expectTxFailure(/rmrkCore\.NoAvailableNftId/, tx);
+
+    const isChild = await isNftChildOfAnother(api, collectionId, childNftId, newOwnerNFT);
+    expect(isChild).to.be.false;
+  });
+
+  it('send NFT to another NFT (by not-an-owner)', async () => {
+    const originalOwnerUri = alice;
+
+    const collectionId = await createTestCollection(alice);
+
+    const author = alice;
+    const attacker = bob;
+
+    const parentNftId = await mintNft(api, author, originalOwnerUri, collectionId, 'parent-nft-metadata');
+    const childNftId = await mintNft(api, author, originalOwnerUri, collectionId, 'child-nft-metadata');
+
+    const newOwnerNFT: NftIdTuple = [collectionId, parentNftId];
+
+    const tx = sendNft(api, 'sent', attacker, collectionId, childNftId, newOwnerNFT);
+
+    await expectTxFailure(/rmrkCore\.NoPermission/, tx);
+
+    const isChild = await isNftChildOfAnother(api, collectionId, childNftId, newOwnerNFT);
+    expect(isChild).to.be.false;
+  });
+
+  it('[negative] send NFT to non-existing NFT', async () => {
+    const originalOwnerUri = alice;
+
+    const collectionId = await createTestCollection(alice);
+
+    const parentNftId = maxNftId;
+    const childNftId = await mintNft(api, alice, originalOwnerUri, collectionId, 'child-nft-metadata');
+
+    const newOwnerNFT: NftIdTuple = [collectionId, parentNftId];
+
+    const tx = sendNft(api, 'sent', alice, collectionId, childNftId, newOwnerNFT);
+
+    await expectTxFailure(/rmrkCore\.NoAvailableNftId/, tx);
+
+    const isChild = await isNftChildOfAnother(api, collectionId, childNftId, newOwnerNFT);
+    expect(isChild).to.be.false;
+  });
+
+  it('send NFT to another NFT owned by another user', async () => {
+    const ownerAlice = alice;
+    const ownerBob = bob;
+
+    const aliceCollectionId = await createTestCollection(alice);
+    const bobCollectionId = await createTestCollection(bob);
+
+    const parentNftId = await mintNft(api, alice, ownerAlice, aliceCollectionId, 'parent-nft-metadata');
+    const childNftId = await mintNft(api, bob, ownerBob, bobCollectionId, 'child-nft-metadata');
+
+    const newOwnerNFT: NftIdTuple = [aliceCollectionId, parentNftId];
+
+    await sendNft(api, 'pending', bob, bobCollectionId, childNftId, newOwnerNFT);
+  });
+
+  it('[negative] unable to send NFT to itself', async () => {
+    const nftOwner = alice;
+    const collectionId = await createTestCollection(alice);
+
+    const nftId = await mintNft(api, alice, nftOwner, collectionId, 'ouroboros-nft-metadata');
+
+    const newOwnerNFT: NftIdTuple = [collectionId, nftId];
+
+    const tx = sendNft(api, 'sent', alice, collectionId, nftId, newOwnerNFT);
+
+    await expectTxFailure(/rmrkCore\.CannotSendToDescendentOrSelf/, tx);
+
+    const isChild = await isNftChildOfAnother(api, collectionId, nftId, newOwnerNFT);
+    expect(isChild).to.be.false;
+  });
+
+  it('[negative] unable to send NFT to child NFT', async () => {
+    const originalOwnerUri = alice;
+
+    const collectionId = await createTestCollection(alice);
+
+    const parentNftId = await mintNft(api, alice, originalOwnerUri, collectionId, 'parent-nft-metadata');
+    const childNftId = await mintNft(api, alice, originalOwnerUri, collectionId, 'child-nft-metadata');
+
+    const newOwnerNFT: NftIdTuple = [collectionId, parentNftId];
+
+    await sendNft(api, 'sent', alice, collectionId, childNftId, newOwnerNFT);
+
+    const isChild = await isNftChildOfAnother(api, collectionId, childNftId, newOwnerNFT);
+    expect(isChild).to.be.true;
+
+    const descendentOwner: NftIdTuple = [collectionId, childNftId];
+    const tx = sendNft(api, 'sent', alice, collectionId, parentNftId, descendentOwner);
+
+    await expectTxFailure(/rmrkCore\.CannotSendToDescendentOrSelf/, tx);
+    const isOuroboros = await isNftChildOfAnother(api, collectionId, parentNftId, descendentOwner);
+    expect(isOuroboros).to.be.false;
+  });
+
+  it('[negative] unable to send NFT to descendent NFT', async () => {
+    const originalOwnerUri = alice;
+
+    const collectionId = await createTestCollection(alice);
+
+    const parentNftId = await mintNft(api, alice, originalOwnerUri, collectionId, 'parent-nft-metadata');
+    const childNftId = await mintNft(api, alice, originalOwnerUri, collectionId, 'child-nft-metadata');
+    const grandsonNftId = await mintNft(api, alice, originalOwnerUri, collectionId, 'grandson-nft-metadata');
+
+    const ownerParentNFT: NftIdTuple = [collectionId, parentNftId];
+
+    await sendNft(api, 'sent', alice, collectionId, childNftId, ownerParentNFT);
+
+    const isChild = await isNftChildOfAnother(api, collectionId, childNftId, ownerParentNFT);
+    expect(isChild).to.be.true;
+
+    const ownerChildNFT: NftIdTuple = [collectionId, childNftId];
+    await sendNft(api, 'sent', alice, collectionId, grandsonNftId, ownerChildNFT);
+
+    const isGrandson = await isNftChildOfAnother(api, collectionId, grandsonNftId, ownerChildNFT);
+    expect(isGrandson).to.be.true;
+
+    const ownerGrandsonNFT: NftIdTuple = [collectionId, grandsonNftId];
+    const tx = sendNft(api, 'sent', alice, collectionId, parentNftId, ownerGrandsonNFT);
+
+    await expectTxFailure(/rmrkCore\.CannotSendToDescendentOrSelf/, tx);
+    const isOuroboros = await isNftChildOfAnother(api, collectionId, parentNftId, ownerGrandsonNFT);
+    expect(isOuroboros).to.be.false;
+  });
+
+  it('send nested NFT to another user', async () => {
+    const originalOwner = alice;
+    const newOwner = bob;
+
+    const collectionId = await createTestCollection(alice);
+
+    const parentNftId = await mintNft(api, alice, originalOwner, collectionId, 'parent-nft-metadata');
+    const childNftId = await mintNft(api, alice, originalOwner, collectionId, 'child-nft-metadata');
+
+    const parentNftTuple: NftIdTuple = [collectionId, parentNftId];
+
+    await sendNft(api, 'sent', originalOwner, collectionId, childNftId, parentNftTuple);
+
+    await sendNft(api, 'sent', originalOwner, collectionId, childNftId, newOwner);
+  });
+
+  it('[negative] send nested NFT to another user (by a not-root-owner)', async () => {
+    const originalOwner = alice;
+    const newOwner = bob;
+
+    const collectionId = await createTestCollection(alice);
+
+    const parentNftId = await mintNft(api, alice, originalOwner, collectionId, 'parent-nft-metadata');
+    const childNftId = await mintNft(api, alice, originalOwner, collectionId, 'child-nft-metadata');
+
+    const parentNftTuple: NftIdTuple = [collectionId, parentNftId];
+
+    await sendNft(api, 'sent', originalOwner, collectionId, childNftId, parentNftTuple);
+
+    const tx = sendNft(api, 'sent', newOwner, collectionId, childNftId, newOwner);
+
+    await expectTxFailure(/rmrkCore\.NoPermission/, tx);
+  });
+
+  after(async() => { await api.disconnect(); });
+});
addedtests/src/.outdated/rmrk/setCollectionProperty.seqtest.tsdiffbeforeafterboth
--- /dev/null
+++ b/tests/src/.outdated/rmrk/setCollectionProperty.seqtest.ts
@@ -0,0 +1,66 @@
+import {getApiConnection} from '../substrate/substrate-api';
+import {expectTxFailure, requirePallets, Pallets} from './util/helpers';
+import {createCollection, setPropertyCollection} from './util/tx';
+
+describe('integration test: set collection property', () => {
+  const alice = '//Alice';
+  const bob = '//Bob';
+
+  let api: any;
+  before(async function () {
+    api = await getApiConnection();
+    await requirePallets(this, [Pallets.RmrkCore]);
+  });
+
+  it('set collection property', async () => {
+    await createCollection(
+      api,
+      alice,
+      'test-metadata',
+      null,
+      'test-symbol',
+    ).then(async (collectionId) => {
+      await setPropertyCollection(api, alice, collectionId, 'test_key', '42');
+      await setPropertyCollection(api, alice, collectionId, 'test_key', '10');
+      await setPropertyCollection(
+        api,
+        alice,
+        collectionId,
+        'second_test_key',
+        '111',
+      );
+    });
+  });
+
+  it('[negative] set non-existing collection property', async () => {
+    const tx = setPropertyCollection(
+      api,
+      alice,
+      9999,
+      'test_key',
+      '42',
+    );
+    await expectTxFailure(/rmrkCore\.CollectionUnknown/, tx);
+  });
+
+  it('[negative] set property not an owner NFT collection issuer', async () => {
+    await createCollection(
+      api,
+      bob,
+      'test-metadata',
+      null,
+      'test-symbol',
+    ).then(async (collectionId) => {
+      const tx = setPropertyCollection(
+        api,
+        alice,
+        collectionId,
+        'test_key',
+        '42',
+      );
+      await expectTxFailure(/rmrkCore\.NoPermission/, tx);
+    });
+  });
+
+  after(async() => { await api.disconnect(); });
+});
addedtests/src/.outdated/rmrk/setEquippableList.seqtest.tsdiffbeforeafterboth
--- /dev/null
+++ b/tests/src/.outdated/rmrk/setEquippableList.seqtest.ts
@@ -0,0 +1,114 @@
+import {getApiConnection} from '../substrate/substrate-api';
+import {expectTxFailure, requirePallets, Pallets} from './util/helpers';
+import {createCollection, createBase, setEquippableList} from './util/tx';
+
+describe("integration test: set slot's Equippable List", () => {
+  let api: any;
+  before(async function () {
+    api = await getApiConnection();
+    await requirePallets(this, [Pallets.RmrkCore]);
+  });
+
+  const alice = '//Alice';
+  const bob = '//Bob';
+
+  it("set Base's slot Equippable List", async () => {
+    const collectionIds = [
+      await createCollection(
+        api,
+        alice,
+        'equiplist-collection-metadata',
+        null,
+        'equiplist-0',
+      ),
+      await createCollection(
+        api,
+        alice,
+        'equiplist-collection-metadata',
+        null,
+        'equiplist-1',
+      ),
+    ];
+
+    const slotId = 202;
+
+    const baseId = await createBase(api, alice, 'slotpartany-base-type', 'slotpartany', [
+      {
+        'SlotPart': {
+          id: slotId,
+          equippable: 'All',
+          z: 1,
+          src: 'some-fallback-slot-url',
+        },
+      },
+    ]);
+
+    await setEquippableList(api, alice, baseId, slotId, 'All');
+    await setEquippableList(api, alice, baseId, slotId, 'Empty');
+    await setEquippableList(api, alice, baseId, slotId, {'Custom': collectionIds});
+  });
+
+  it('[negative] unable to set equippable list of a slot of non-existing base', async () => {
+    const maxBaseId = 0xFFFFFFFF;
+    const slotId = 0;
+
+    const tx = setEquippableList(api, alice, maxBaseId, slotId, 'All');
+    await expectTxFailure(/rmrkEquip\.BaseDoesntExist/, tx);
+  });
+
+  it('[negative] unable to set equippable list by a not-an-owner', async () => {
+    const slotId = 42;
+
+    const baseId = await createBase(api, alice, 'slotpartany-base-type', 'slotpartany', [
+      {
+        'SlotPart': {
+          id: slotId,
+          equippable: 'All',
+          z: 1,
+          src: 'some-fallback-slot-url',
+        },
+      },
+    ]);
+
+    const tx = setEquippableList(api, bob, baseId, slotId, 'All');
+    await expectTxFailure(/rmrkEquip\.PermissionError/, tx);
+  });
+
+  it('[negative] unable to set equippable list to a fixed part', async () => {
+    const fixedPartId = 42;
+
+    const baseId = await createBase(api, alice, 'fixedpart-base-type', 'fixedpart', [
+      {
+        'FixedPart': {
+          id: fixedPartId,
+          z: 0,
+          src: 'fixed-part-url',
+        },
+      },
+    ]);
+
+    const tx = setEquippableList(api, alice, baseId, fixedPartId, 'All');
+    await expectTxFailure(/rmrkEquip\.NoEquippableOnFixedPart/, tx);
+  });
+
+  it('[negative] unable to set equippable list to non-existing slot', async () => {
+    const slotId = 777;
+    const maxSlotId = 0xFFFFFFFF;
+
+    const baseId = await createBase(api, alice, 'slotpartany-base-type', 'slotpartany', [
+      {
+        'SlotPart': {
+          id: slotId,
+          equippable: 'All',
+          z: 1,
+          src: 'some-fallback-slot-url',
+        },
+      },
+    ]);
+
+    const tx = setEquippableList(api, alice, baseId, maxSlotId, 'All');
+    await expectTxFailure(/rmrkEquip\.PartDoesntExist/, tx);
+  });
+
+  after(async() => { await api.disconnect(); });
+});
addedtests/src/.outdated/rmrk/setNftProperty.seqtest.tsdiffbeforeafterboth
--- /dev/null
+++ b/tests/src/.outdated/rmrk/setNftProperty.seqtest.ts
@@ -0,0 +1,88 @@
+import {getApiConnection} from '../substrate/substrate-api';
+import {NftIdTuple} from './util/fetch';
+import {expectTxFailure, requirePallets, Pallets} from './util/helpers';
+import {createCollection, mintNft, sendNft, setNftProperty} from './util/tx';
+
+describe('integration test: set NFT property', () => {
+  let api: any;
+  before(async function () {
+    api = await getApiConnection();
+    await requirePallets(this, [Pallets.RmrkCore]);
+  });
+
+  const alice = '//Alice';
+  const bob = '//Bob';
+
+  const createTestCollection = async (issuerUri: string) => {
+    return await createCollection(
+      api,
+      issuerUri,
+      'setprop-nft-collection-metadata',
+      null,
+      'setprop',
+    );
+  };
+
+  it('set NFT property', async () => {
+    const ownerAlice = alice;
+
+    const collectionId = await createTestCollection(alice);
+    const nftId = await mintNft(api, alice, ownerAlice, collectionId, 'prop-nft');
+
+    await setNftProperty(api, alice, collectionId, nftId, 'test-key', 'test-key-value');
+    await setNftProperty(api, alice, collectionId, nftId, 'test-key', 'updated-key-value');
+    await setNftProperty(api, alice, collectionId, nftId, 'second-test-key', 'second-test-key-value');
+  });
+
+  it('[negative] unable to set a property of non-existing NFT', async () => {
+    const collectionId = 0;
+    const maxNftId = 0xFFFFFFFF;
+
+    const tx = setNftProperty(api, alice, collectionId, maxNftId, 'test-key', 'test-value');
+
+    await expectTxFailure(/rmrkCore\.NoAvailableNftId/, tx);
+  });
+
+  it('[negative] unable to set a property by not-an-owner', async () => {
+    const ownerAlice = alice;
+
+    const collectionId = await createTestCollection(alice);
+    const nftId = await mintNft(api, alice, ownerAlice, collectionId, 'prop-nft');
+
+    const tx = setNftProperty(api, bob, collectionId, nftId, 'test-key', 'test-key-value');
+
+    await expectTxFailure(/rmrkCore\.NoPermission/, tx);
+  });
+
+  it('set a property to nested NFT', async () => {
+    const ownerAlice = alice;
+
+    const collectionId = await createTestCollection(alice);
+    const parentNftId = await mintNft(api, alice, ownerAlice, collectionId, 'prop-parent-nft');
+    const childNftId = await mintNft(api, alice, ownerAlice, collectionId, 'prop-child-nft');
+
+    const ownerNft: NftIdTuple = [collectionId, parentNftId];
+
+    await sendNft(api, 'sent', ownerAlice, collectionId, childNftId, ownerNft);
+
+    await setNftProperty(api, alice, collectionId, childNftId, 'test-key', 'test-key-value');
+  });
+
+  it('[negative] set a property to nested NFT (by not-root-owner)', async () => {
+    const ownerAlice = alice;
+
+    const collectionId = await createTestCollection(alice);
+    const parentNftId = await mintNft(api, alice, ownerAlice, collectionId, 'prop-parent-nft');
+    const childNftId = await mintNft(api, alice, ownerAlice, collectionId, 'prop-child-nft');
+
+    const ownerNft: NftIdTuple = [collectionId, parentNftId];
+
+    await sendNft(api, 'sent', ownerAlice, collectionId, childNftId, ownerNft);
+
+    const tx = setNftProperty(api, bob, collectionId, childNftId, 'test-key', 'test-key-value');
+
+    await expectTxFailure(/rmrkCore\.NoPermission/, tx);
+  });
+
+  after(async() => { await api.disconnect(); });
+});
addedtests/src/.outdated/rmrk/setResourcePriorities.seqtest.tsdiffbeforeafterboth
--- /dev/null
+++ b/tests/src/.outdated/rmrk/setResourcePriorities.seqtest.ts
@@ -0,0 +1,56 @@
+import {getApiConnection} from '../substrate/substrate-api';
+import {expectTxFailure, requirePallets, Pallets} from './util/helpers';
+import {mintNft, createCollection, setResourcePriorities} from './util/tx';
+
+describe('integration test: set NFT resource priorities', () => {
+  let api: any;
+  before(async function () {
+    api = await getApiConnection();
+    await requirePallets(this, [Pallets.RmrkCore]);
+  });
+
+  const alice = '//Alice';
+  const bob = '//Bob';
+
+  const createTestCollection = (issuerUri: string) => {
+    return createCollection(
+      api,
+      issuerUri,
+      'resprio-collection-metadata',
+      null,
+      'resprio',
+    );
+  };
+
+  it('set NFT resource priorities', async () => {
+    const owner = alice;
+
+    const collectionId = await createTestCollection(alice);
+    const nftId = await mintNft(api, alice, owner, collectionId, 'resprio-nft-metadata');
+
+    await setResourcePriorities(api, alice, collectionId, nftId, [10, 42]);
+  });
+
+  it('[negative] set NFT resource priorities by a not-an-owner', async () => {
+    const owner = alice;
+    const attacker = bob;
+
+    const collectionId = await createTestCollection(alice);
+    const nftId = await mintNft(api, alice, owner, collectionId, 'resprio-nft-metadata');
+
+    const tx = setResourcePriorities(api, attacker, collectionId, nftId, [10, 42]);
+
+    await expectTxFailure(/rmrkCore\.NoPermission/, tx);
+  });
+
+  it('[negative] set NFT resource priorities to non-existing NFT', async () => {
+    const collectionId = 0;
+    const maxNftId = 0xFFFFFFFF;
+
+    const tx = setResourcePriorities(api, alice, collectionId, maxNftId, [10, 42]);
+
+    await expectTxFailure(/rmrkCore\.NoAvailableNftId/, tx);
+  });
+
+  after(async() => { await api.disconnect(); });
+});
addedtests/src/.outdated/rmrk/util/fetch.tsdiffbeforeafterboth
--- /dev/null
+++ b/tests/src/.outdated/rmrk/util/fetch.ts
@@ -0,0 +1,130 @@
+import {ApiPromise} from '@polkadot/api';
+import type {Option} from '@polkadot/types-codec';
+import type {
+  RmrkTraitsCollectionCollectionInfo as Collection,
+  RmrkTraitsNftNftInfo as Nft,
+  RmrkTraitsResourceResourceInfo as Resource,
+  RmrkTraitsBaseBaseInfo as Base,
+  RmrkTraitsPartPartType as PartType,
+  RmrkTraitsNftNftChild as NftChild,
+  RmrkTraitsTheme as Theme,
+  RmrkTraitsPropertyPropertyInfo as Property,
+} from '../../../interfaces/default/types'; // '@polkadot/types/lookup';
+import '../../../interfaces/augment-api';
+import '../../../interfaces/augment-api-query';
+import privateKey from '../../substrate/privateKey';
+
+export type NftIdTuple = [number, number];
+
+export async function getCollectionsCount(api: ApiPromise): Promise<number> {
+  return (await api.rpc.rmrk.lastCollectionIdx()).toNumber();
+}
+
+export function getCollection(api: ApiPromise, id: number): Promise<Option<Collection>> {
+  return api.rpc.rmrk.collectionById(id);
+}
+
+export async function getOwnedNfts(
+  api: ApiPromise,
+  ownerUri: string,
+  collectionId: number,
+): Promise<number[]> {
+  const ss58Format = api.registry.getChainProperties()!.toJSON().ss58Format;
+  const owner = privateKey(ownerUri, Number(ss58Format));
+
+  return (await api.rpc.rmrk.accountTokens(owner.address, collectionId))
+    .map((value) => value.toNumber());
+}
+
+export function getNft(api: ApiPromise, collectionId: number, nftId: number): Promise<Option<Nft>> {
+  return api.rpc.rmrk.nftById(collectionId, nftId);
+}
+
+export async function getCollectionProperties(api: ApiPromise, collectionId: number): Promise<Property[]> {
+  return (await api.rpc.rmrk.collectionProperties(collectionId)).toArray();
+}
+
+export async function getNftProperties(api: ApiPromise, collectionId: number, nftId: number): Promise<Property[]> {
+  return (await api.rpc.rmrk.nftProperties(collectionId, nftId)).toArray();
+}
+
+export async function getChildren(
+  api: ApiPromise,
+  collectionId: number,
+  nftId: number,
+): Promise<NftChild[]> {
+  return (await api.rpc.rmrk.nftChildren(collectionId, nftId)).toArray();
+}
+
+export function getBase(api: ApiPromise, baseId: number): Promise<Option<Base>> {
+  return api.rpc.rmrk.base(baseId);
+}
+
+export async function getParts(api: ApiPromise, baseId: number): Promise<PartType[]> {
+  return (await api.rpc.rmrk.baseParts(baseId)).toArray();
+}
+
+export async function getEquippableList(
+  api: ApiPromise,
+  baseId: number,
+  slotId: number,
+): Promise<'All' | 'Empty' | { 'Custom': number[] } | null> {
+  const parts = await getParts(api, baseId);
+
+  const part = parts.find((part) => {
+    if (part.isSlotPart) {
+      return part.asSlotPart.id.toNumber() === slotId;
+    } else {
+      return false;
+    }
+  });
+
+  if (part) {
+    const slot = part.asSlotPart;
+    if (slot.equippable.isCustom) {
+      return {
+        'Custom': slot.equippable.asCustom
+          .toArray()
+          .map((collectionId) => collectionId.toNumber()),
+      };
+    } else if (slot.equippable.isAll) {
+      return 'All';
+    } else {
+      return 'Empty';
+    }
+  } else {
+    return null;
+  }
+}
+
+export async function getResourcePriority(
+  api: ApiPromise,
+  collectionId: number,
+  nftId: number,
+  resourceId: number,
+): Promise<number> {
+  return (await api.rpc.rmrk.nftResourcePriority(collectionId, nftId, resourceId))
+    .unwrap().toNumber();
+}
+
+export async function getThemeNames(api: ApiPromise, baseId: number): Promise<string[]> {
+  return (await api.rpc.rmrk.themeNames(baseId))
+    .map((name) => name.toUtf8());
+}
+
+export function getTheme(
+  api: ApiPromise,
+  baseId: number,
+  themeName: string,
+  keys: string[] | null = null,
+): Promise<Option<Theme>> {
+  return api.rpc.rmrk.themes(baseId, themeName, keys);
+}
+
+export async function getResources(
+  api: ApiPromise,
+  collectionId: number,
+  nftId: number,
+): Promise<Resource[]> {
+  return (await api.rpc.rmrk.nftResources(collectionId, nftId)).toArray();
+}
addedtests/src/.outdated/rmrk/util/helpers.tsdiffbeforeafterboth
--- /dev/null
+++ b/tests/src/.outdated/rmrk/util/helpers.ts
@@ -0,0 +1,249 @@
+import {ApiPromise} from '@polkadot/api';
+import {
+  RmrkTraitsNftAccountIdOrCollectionNftTuple as NftOwner,
+  RmrkTraitsPropertyPropertyInfo as Property,
+  RmrkTraitsResourceResourceInfo as ResourceInfo,
+} from '@polkadot/types/lookup';
+import type {EventRecord} from '@polkadot/types/interfaces';
+import type {GenericEventData} from '@polkadot/types';
+import privateKey from '../../substrate/privateKey';
+import {NftIdTuple, getChildren, getOwnedNfts, getCollectionProperties, getNftProperties, getResources} from './fetch';
+import chaiAsPromised from 'chai-as-promised';
+import chai from 'chai';
+import {getApiConnection} from '../../substrate/substrate-api';
+import {Context} from 'mocha';
+
+chai.use(chaiAsPromised);
+const expect = chai.expect;
+
+interface TxResult<T> {
+    success: boolean;
+    successData: T | null;
+}
+
+export enum Pallets {
+  Inflation = 'inflation',
+  RmrkCore = 'rmrkcore',
+  RmrkEquip = 'rmrkequip',
+  ReFungible = 'refungible',
+  Fungible = 'fungible',
+  NFT = 'nonfungible',
+  Scheduler = 'scheduler',
+  AppPromotion = 'apppromotion',
+}
+
+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[]> {
+  const api = await getApiConnection();
+  const pallets = getModuleNames(api);
+  await api.disconnect();
+
+  return requiredPallets.filter(p => !pallets.includes(p));
+}
+
+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 makeNftOwner(api: ApiPromise, owner: string | NftIdTuple): NftOwner {
+  const isNftSending = (typeof owner !== 'string');
+
+  if (isNftSending) {
+    return api.createType('RmrkTraitsNftAccountIdOrCollectionNftTuple', {
+      'CollectionAndNftTuple': owner,
+    });
+  } else {
+    const ss58Format = api.registry.getChainProperties()!.toJSON().ss58Format;
+    return api.createType('RmrkTraitsNftAccountIdOrCollectionNftTuple', {
+      AccountId: privateKey(owner, Number(ss58Format)).address,
+    });
+  }
+}
+
+export async function isNftOwnedBy(
+  api: ApiPromise,
+  owner: string | NftIdTuple,
+  collectionId: number,
+  nftId: number,
+): Promise<boolean> {
+  if (typeof owner === 'string') {
+    return (await getOwnedNfts(api, owner, collectionId))
+      .find(ownedNftId => {
+        return ownedNftId === nftId;
+      }) !== undefined;
+  } else {
+    return (await getChildren(api, owner[0], owner[1]))
+      .find(child => {
+        return collectionId === child.collectionId.toNumber()
+                    && nftId === child.nftId.toNumber();
+      }) !== undefined;
+  }
+}
+
+export function isPropertyExists(
+  key: string,
+  value: string,
+  props: Property[],
+): boolean {
+  let isPropFound = false;
+  for (let i = 0; i < props.length && !isPropFound; i++) {
+    const fetchedProp = props[i];
+
+    isPropFound = fetchedProp.key.eq(key)
+                    && fetchedProp.value.eq(value);
+  }
+
+  return isPropFound;
+}
+
+export async function isCollectionPropertyExists(
+  api: ApiPromise,
+  collectionId: number,
+  key: string,
+  value: string,
+): Promise<boolean> {
+  const fetchedProps = await getCollectionProperties(api, collectionId);
+  return isPropertyExists(key, value, fetchedProps);
+}
+
+export async function isNftPropertyExists(
+  api: ApiPromise,
+  collectionId: number,
+  nftId: number,
+  key: string,
+  value: string,
+): Promise<boolean> {
+  const fetchedProps = await getNftProperties(api, collectionId, nftId);
+  return isPropertyExists(key, value, fetchedProps);
+}
+
+export async function isNftChildOfAnother(
+  api: ApiPromise,
+  collectionId: number,
+  nftId: number,
+  parentNft: NftIdTuple,
+): Promise<boolean> {
+  return (await getChildren(api, parentNft[0], parentNft[1]))
+    .find((childNft) => {
+      return childNft.collectionId.toNumber() === collectionId
+                && childNft.nftId.toNumber() === nftId;
+    }) !== undefined;
+}
+
+export function isTxResultSuccess(events: EventRecord[]): boolean {
+  let success = false;
+
+  events.forEach(({event: {method}}) => {
+    if (method == 'ExtrinsicSuccess') {
+      success = true;
+    }
+  });
+
+  return success;
+}
+
+export async function expectTxFailure(expectedError: RegExp, promise: Promise<any>) {
+  await expect(promise).to.be.rejectedWith(expectedError);
+}
+
+export function extractTxResult<T>(
+  events: EventRecord[],
+  expectSection: string,
+  expectMethod: string,
+  extractAction: (data: any) => T,
+): TxResult<T> {
+  let success = false;
+  let successData = null;
+  events.forEach(({event: {data, method, section}}) => {
+    if (method == 'ExtrinsicSuccess') {
+      success = true;
+    } else if ((expectSection == section) && (expectMethod == method)) {
+      successData = extractAction(data);
+    }
+  });
+  const result: TxResult<T> = {
+    success,
+    successData,
+  };
+  return result;
+}
+
+export function extractRmrkCoreTxResult<T>(
+  events: EventRecord[],
+  expectMethod: string,
+  extractAction: (data: GenericEventData) => T,
+): TxResult<T> {
+  return extractTxResult(events, 'rmrkCore', expectMethod, extractAction);
+}
+
+export function extractRmrkEquipTxResult<T>(
+  events: EventRecord[],
+  expectMethod: string,
+  extractAction: (data: GenericEventData) => T,
+): TxResult<T> {
+  return extractTxResult(events, 'rmrkEquip', expectMethod, extractAction);
+}
+
+export async function findResourceById(
+  api: ApiPromise,
+  collectionId: number,
+  nftId: number,
+  resourceId: number,
+): Promise<ResourceInfo> {
+  const resources = await getResources(api, collectionId, nftId);
+
+  let resource = null;
+
+  for (let i = 0; i < resources.length; i++) {
+    const res = resources[i];
+
+    if (res.id.eq(resourceId)) {
+      resource = res;
+      break;
+    }
+  }
+
+  return resource!;
+}
+
+export async function getResourceById(
+  api: ApiPromise,
+  collectionId: number,
+  nftId: number,
+  resourceId: number,
+): Promise<ResourceInfo> {
+  const resource = await findResourceById(
+    api,
+    collectionId,
+    nftId,
+    resourceId,
+  );
+
+  expect(resource !== null, 'Error: resource was not found').to.be.true;
+
+  return resource!;
+}
+
+export function checkResourceStatus(
+  resource: ResourceInfo,
+  expectedStatus: 'pending' | 'added',
+) {
+  expect(resource.pending.isTrue, `Error: added resource should be ${expectedStatus}`)
+    .to.be.equal(expectedStatus === 'pending');
+}
addedtests/src/.outdated/rmrk/util/tx.tsdiffbeforeafterboth
--- /dev/null
+++ b/tests/src/.outdated/rmrk/util/tx.ts
@@ -0,0 +1,1132 @@
+import {ApiPromise} from '@polkadot/api';
+import {Bytes, Option, u32, Vec} from '@polkadot/types-codec';
+import {
+  RmrkTraitsNftAccountIdOrCollectionNftTuple as NftOwner, RmrkTraitsPartEquippableList as EquippableList,
+  RmrkTraitsPartPartType as PartType, RmrkTraitsResourceBasicResource as BasicResource,
+  RmrkTraitsResourceComposableResource as ComposableResource, RmrkTraitsResourceResourceInfo as ResourceInfo, RmrkTraitsResourceSlotResource as SlotResource, RmrkTraitsTheme as Theme,
+} from '@polkadot/types/lookup';
+import {IKeyringPair} from '@polkadot/types/types';
+import chai from 'chai';
+import chaiAsPromised from 'chai-as-promised';
+import '../../../interfaces/augment-api';
+import privateKey from '../../substrate/privateKey';
+import {executeTransaction} from '../../substrate/substrate-api';
+import {
+  getBase,
+  getCollection,
+  getCollectionsCount,
+  getEquippableList,
+  getNft,
+  getParts,
+  getResources, 
+  getResourcePriority, 
+  getTheme,
+  NftIdTuple,
+} from './fetch';
+import {
+  extractRmrkCoreTxResult,
+  extractRmrkEquipTxResult, isCollectionPropertyExists, isNftOwnedBy, isNftPropertyExists, isTxResultSuccess, makeNftOwner,
+  findResourceById, getResourceById, checkResourceStatus,
+} from './helpers';
+
+chai.use(chaiAsPromised);
+const expect = chai.expect;
+
+export async function createCollection(
+  api: ApiPromise,
+  issuerUri: string,
+  metadata: string,
+  max: number | null,
+  symbol: string,
+): Promise<number> {
+  let collectionId = 0;
+
+  const oldCollectionCount = await getCollectionsCount(api);
+  const maxOptional = max ? max.toString() : null;
+  const ss58Format = (api.registry.getChainProperties())!.toJSON().ss58Format;
+  const issuer = privateKey(issuerUri, Number(ss58Format));
+  const tx = api.tx.rmrkCore.createCollection(metadata, maxOptional, symbol);
+  const events = await executeTransaction(api, issuer, tx);
+
+  const collectionResult = extractRmrkCoreTxResult(events, 'CollectionCreated', (data) => {
+    return parseInt(data[1].toString(), 10);
+  });
+  expect(collectionResult.success, 'Error: unable to create a collection').to.be.true;
+
+  collectionId = collectionResult.successData!;
+
+  const newCollectionCount = await getCollectionsCount(api);
+  const collectionOption = await getCollection(api, collectionId);
+
+  expect(newCollectionCount).to.be.equal(oldCollectionCount + 1, 'Error: NFT collection count should increase');
+  expect(collectionOption.isSome, 'Error: unable to fetch created NFT collection').to.be.true;
+
+  const collection = collectionOption.unwrap();
+
+  expect(collection.metadata.toUtf8()).to.be.equal(metadata, 'Error: Invalid NFT collection metadata');
+  expect(collection.max.isSome).to.be.equal(max !== null, 'Error: Invalid NFT collection max');
+
+  if (collection.max.isSome) {
+    expect(collection.max.unwrap().toNumber()).to.be.equal(max, 'Error: Invalid NFT collection max');
+  }
+  expect(collection.symbol.toUtf8()).to.be.equal(symbol, "Error: Invalid NFT collection's symbol");
+  expect(collection.nftsCount.toNumber()).to.be.equal(0, "Error: NFT collection shoudn't have any tokens");
+  expect(collection.issuer.toString()).to.be.equal(issuer.address, 'Error: Invalid NFT collection issuer');
+
+  return collectionId;
+}
+
+export async function changeIssuer(
+  api: ApiPromise,
+  issuerUri: string,
+  collectionId: number,
+  newIssuer: string,
+) {
+  const ss58Format = api.registry.getChainProperties()!.toJSON().ss58Format;
+  const alice = privateKey(issuerUri, Number(ss58Format));
+  const bob = privateKey(newIssuer, Number(ss58Format));
+
+  // This is only needed when RMRK uses `uniques` pallet by Parity
+  // let tx = api.tx.uniques.setAcceptOwnership(
+  //     api.createType('Option<u32>', collectionId)
+  // );
+  // let events = await executeTransaction(api, bob, tx);
+  // expect(isTxResultSuccess(events), 'Error: Unable to accept ownership').to.be.true;
+
+  const tx = api.tx.rmrkCore.changeCollectionIssuer(collectionId, bob.address);
+  const events = await executeTransaction(api, alice, tx);
+  const changeIssuerResult = extractRmrkCoreTxResult(events, 'IssuerChanged', (data) => {
+    return parseInt(data[2].toString(), 10);
+  });
+  expect(changeIssuerResult.success, 'Error: Unable to change NFT collection issuer').to.be.true;
+  expect(changeIssuerResult.successData!, 'Error: Invalid collection id after changing the issuer')
+    .to.be.eq(collectionId);
+
+  await getCollection(api, collectionId).then((collectionOption) => {
+    const collection = collectionOption.unwrap();
+    expect(collection.issuer.toString())
+      .to.be.deep.eq(bob.address, 'Error: Invalid NFT collection issuer');
+  });
+}
+
+export async function deleteCollection(
+  api: ApiPromise,
+  issuerUri: string,
+  collectionId: string,
+): Promise<number> {
+  const ss58Format = api.registry.getChainProperties()!.toJSON().ss58Format;
+  const issuer = privateKey(issuerUri, Number(ss58Format));
+  const tx = api.tx.rmrkCore.destroyCollection(collectionId);
+  const events = await executeTransaction(api, issuer, tx);
+
+  const collectionTxResult = extractRmrkCoreTxResult(
+    events,
+    'CollectionDestroy',
+    (data) => {
+      return parseInt(data[1].toString(), 10);
+    },
+  );
+  expect(collectionTxResult.success, 'Error: Unable to delete NFT collection').to.be.true;
+
+  const collection = await getCollection(
+    api,
+    parseInt(collectionId, 10),
+  );
+  expect(collection.isEmpty, 'Error: NFT collection should be deleted').to.be.true;
+
+  return 0;
+}
+
+export async function negativeDeleteCollection(
+  api: ApiPromise,
+  issuerUri: string,
+  collectionId: string,
+): Promise<number> {
+  const ss58Format = api.registry.getChainProperties()!.toJSON().ss58Format;
+  const issuer = privateKey(issuerUri, Number(ss58Format));
+  const tx = api.tx.rmrkCore.destroyCollection(collectionId);
+  await expect(executeTransaction(api, issuer, tx)).to.be.rejected;
+
+  return 0;
+}
+
+export async function setNftProperty(
+  api: ApiPromise,
+  issuerUri: string,
+  collectionId: number,
+  nftId: number,
+  key: string,
+  value: string,
+) {
+  const ss58Format = api.registry.getChainProperties()!.toJSON().ss58Format;
+  const issuer = privateKey(issuerUri, Number(ss58Format));
+  const nftIdOpt = api.createType('Option<u32>', nftId);
+  const tx = api.tx.rmrkCore.setProperty(
+    collectionId,
+    nftIdOpt,
+    key,
+    value,
+  );
+  const events = await executeTransaction(api, issuer, tx);
+
+  const propResult = extractRmrkCoreTxResult(events, 'PropertySet', (data) => {
+    return {
+      collectionId: parseInt(data[0].toString(), 10),
+      nftId: data[1] as Option<u32>,
+      key: data[2] as Bytes,
+      value: data[3] as Bytes,
+    };
+  });
+
+  expect(propResult.success, 'Error: Unable to set NFT property').to.be.true;
+  const eventData = propResult.successData!;
+  const eventDescription = 'from set NFT property event';
+
+  expect(eventData.collectionId, 'Error: Invalid collection ID ' + eventDescription)
+    .to.be.equal(collectionId);
+
+  expect(eventData.nftId.eq(nftIdOpt), 'Error: Invalid NFT ID ' + eventDescription)
+    .to.be.true;
+
+  expect(eventData.key.eq(key), 'Error: Invalid property key ' + eventDescription)
+    .to.be.true;
+
+  expect(eventData.value.eq(value), 'Error: Invalid property value ' + eventDescription)
+    .to.be.true;
+
+  expect(
+    await isNftPropertyExists(api, collectionId, nftId, key, value),
+    'Error: NFT property is not found',
+  ).to.be.true;
+}
+
+export async function mintNft(
+  api: ApiPromise,
+  issuerUri: string,
+  ownerUri: string | null,
+  collectionId: number,
+  metadata: string,
+  recipientUri: string | null = null,
+  royalty: number | null = null,
+  transferable = true,
+  resources: {basic?: any, composable?: any, slot?: any}[] | null = null,
+): Promise<number> {
+  let nftId = 0;
+  const ss58Format = api.registry.getChainProperties()!.toJSON().ss58Format;
+  const issuer = privateKey(issuerUri, Number(ss58Format));
+  const owner = ownerUri ? privateKey(ownerUri, Number(ss58Format)).address : null;
+  const recipient = recipientUri ? privateKey(recipientUri, Number(ss58Format)).address : null;
+  const royaltyOptional = royalty ? royalty.toString() : null;
+
+  const actualOwnerUri = ownerUri ? ownerUri : issuerUri;
+  const actualOwnerAddress = ownerUri ? owner : issuer.address;
+
+  const collectionOpt = await getCollection(api, collectionId);
+
+  const tx = api.tx.rmrkCore.mintNft(
+    owner,
+    collectionId,
+    recipient,
+    royaltyOptional,
+    metadata,
+    transferable,
+    resources as any,
+  );
+
+  const events = await executeTransaction(api, issuer, tx);
+  const nftResult = extractRmrkCoreTxResult(events, 'NftMinted', (data) => {
+    return parseInt(data[2].toString(), 10);
+  });
+
+  expect(nftResult.success, 'Error: Unable to mint NFT').to.be.true;
+
+  const newCollectionNftsCount = (await getCollection(api, collectionId))
+    .unwrap()
+    .nftsCount
+    .toNumber();
+
+  const oldCollectionNftsCount = collectionOpt
+    .unwrap()
+    .nftsCount.toNumber();
+
+  expect(newCollectionNftsCount, 'Error: NFTs count should increase')
+    .to.be.equal(oldCollectionNftsCount + 1);
+
+  nftId = nftResult.successData!;
+
+  const nftOption = await getNft(api, collectionId, nftId);
+
+  expect(nftOption.isSome, 'Error: Unable to fetch created NFT').to.be.true;
+
+  const nft = nftOption.unwrap();
+
+  expect(nft.owner.isAccountId, 'Error: NFT owner should be some user').to.be.true;
+  expect(nft.owner.asAccountId.toString()).to.be.equal(actualOwnerAddress, 'Error: Invalid NFT owner');
+
+  const isOwnedInUniques = await isNftOwnedBy(api, actualOwnerUri, collectionId, nftId);
+  expect(isOwnedInUniques, `Error: created NFT is not actually owned by ${ownerUri}`)
+    .to.be.true;
+
+  if (recipient === null && royalty === null) {
+    expect(nft.royalty.isNone, 'Error: Invalid NFT recipient')
+      .to.be.true;
+  } else {
+    expect(nft.royalty.isSome, 'Error: NFT royalty not found')
+      .to.be.true;
+
+    const nftRoyalty = nft.royalty.unwrap();
+    expect(nftRoyalty.recipient.eq(recipient), 'Error: Invalid NFT recipient')
+      .to.be.true;
+
+    expect(nftRoyalty.amount.eq(royalty), 'Error: Invalid NFT royalty')
+      .to.be.true;
+  }
+
+  expect(nft.metadata.toUtf8()).to.be.equal(metadata, 'Error: Invalid NFT metadata');
+    
+  const nftResources = await getResources(api, collectionId, nftId);
+  if (resources == null) {
+    expect(nftResources, 'Error: Invalid NFT resources').to.be.empty;
+  } else {
+    expect(nftResources.length).to.be.equal(resources.length);
+
+    for (let i = 0; i < resources.length; i++) {
+      let successFindingResource = false;
+      const resource = resources[i];
+      // try to find the matching resource from the query
+      for (let j = 0; j < nftResources.length && !successFindingResource; j++) {
+        const nftResourceData = nftResources[j].toHuman();
+        expect(
+          Object.prototype.hasOwnProperty.call(nftResourceData, 'resource'),
+          `Error: Corrupted resource data on resource #${i}`,
+        ).to.be.true;
+        const nftResource = nftResourceData.resource!;
+                type NftResourceKey = keyof typeof nftResource;
+
+                let typedResource = null;
+                let typedNftResource = null;
+
+                if (resource.basic && Object.prototype.hasOwnProperty.call(nftResource, 'Basic')) {
+                  typedResource = resource.basic!;
+                  typedNftResource = nftResource['Basic' as NftResourceKey]!;
+                } else if (resource.composable && Object.prototype.hasOwnProperty.call(nftResource, 'Composable')) {
+                  typedResource = resource.composable!;
+                  typedNftResource = nftResource['Composable' as NftResourceKey]! as any;
+                  if (typedResource.parts != undefined && typedResource.parts.toString() != typedNftResource.parts.toString()
+                        || typedResource.base != typedNftResource.base && typedResource.base != undefined) {
+                    continue;
+                  }
+                } else if (resource.slot && Object.prototype.hasOwnProperty.call(nftResource, 'Slot')) {
+                  typedResource = resource.slot!;
+                  typedNftResource = nftResource['Slot' as NftResourceKey]! as any;
+                  if (typedResource.slot != typedNftResource.slot && typedResource.slot != undefined 
+                        || typedResource.base != typedNftResource.base && typedResource.base != undefined) {
+                    continue;
+                  }
+                } else {
+                  continue;
+                }
+
+                if (typedResource.src != typedNftResource.src 
+                    || typedResource.metadata != typedNftResource.metadata 
+                    || typedResource.thumb != typedNftResource.thumb
+                    || typedResource.license != typedNftResource.license
+                ) {
+                  continue;
+                }
+
+                // do final checks since this is now established to be the resource we seek
+                expect(nftResourceData.pending, `Error: Resource #${i} is pending`).to.be.false;
+                expect(nftResourceData.pendingRemoval, `Error: Resource #${i} is pending removal`).to.be.false;
+
+                // remove the matching resource from the resources we check
+                nftResources.splice(j, 1);
+                successFindingResource = true;
+      }
+
+      expect(successFindingResource, `Error: Couldn't find resource #${i}'s counterpart among the returned`).to.be.true;
+    }
+  }
+
+  return nftId;
+}
+
+export async function sendNft(
+  api: ApiPromise,
+  expectedStatus: 'pending' | 'sent',
+  originalOwnerUri: string,
+  collectionId: number,
+  nftId: number,
+  newOwner: string | NftIdTuple,
+) {
+  const ss58Format = api.registry.getChainProperties()!.toJSON().ss58Format;
+  const originalOwner = privateKey(originalOwnerUri, Number(ss58Format));
+  const newOwnerObj = makeNftOwner(api, newOwner);
+
+  const nftBeforeSendingOpt = await getNft(api, collectionId, nftId);
+
+  const tx = api.tx.rmrkCore.send(collectionId, nftId, newOwnerObj);
+  const events = await executeTransaction(api, originalOwner, tx);
+
+  const sendResult = extractRmrkCoreTxResult(events, 'NFTSent', (data) => {
+    return {
+      dstOwner: data[1] as NftOwner,
+      collectionId: parseInt(data[2].toString(), 10),
+      nftId: parseInt(data[3].toString(), 10),
+    };
+  });
+
+  expect(sendResult.success, 'Error: Unable to send NFT').to.be.true;
+  const sendData = sendResult.successData!;
+
+  expect(sendData.dstOwner.eq(newOwnerObj), 'Error: Invalid target user (from event data)')
+    .to.be.true;
+
+  expect(sendData.collectionId)
+    .to.be.equal(collectionId, 'Error: Invalid collection ID (from event data)');
+
+  expect(sendData.nftId).to.be.equal(nftId, 'Error: Invalid NFT ID (from event data)');
+
+  expect(nftBeforeSendingOpt.isSome, 'Error: Unable to fetch NFT before sending').to.be.true;
+
+  const nftBeforeSending = nftBeforeSendingOpt.unwrap();
+
+  const nftAfterSendingOpt = await getNft(api, collectionId, nftId);
+
+  expect(nftAfterSendingOpt.isSome, 'Error: Unable to fetch NFT after sending').to.be.true;
+
+  const nftAfterSending = nftAfterSendingOpt.unwrap();
+
+  const isOwnedByNewOwner = await isNftOwnedBy(api, newOwner, collectionId, nftId);
+  const isPending = expectedStatus === 'pending';
+
+  expect(
+    isOwnedByNewOwner,
+    `Error: The NFT should be owned by ${newOwner.toString()}`,
+  ).to.be.true;
+
+  expect(nftAfterSending.royalty.eq(nftBeforeSending.royalty), 'Error: Invalid NFT royalty after sending')
+    .to.be.true;
+
+  expect(nftAfterSending.metadata.eq(nftBeforeSending.metadata), 'Error: Invalid NFT metadata after sending')
+    .to.be.true;
+
+  expect(nftAfterSending.equipped.eq(nftBeforeSending.equipped), 'Error: Invalid NFT equipped status after sending')
+    .to.be.true;
+
+  expect(nftAfterSending.pending.eq(isPending), 'Error: Invalid NFT pending state')
+    .to.be.true;
+}
+
+export async function acceptNft(
+  api: ApiPromise,
+  issuerUri: string,
+  collectionId: number,
+  nftId: number,
+  newOwner: string | [number, number],
+) {
+  const ss58Format = api.registry.getChainProperties()!.toJSON().ss58Format;
+  const issuer = privateKey(issuerUri, Number(ss58Format));
+  const newOwnerObj = makeNftOwner(api, newOwner);
+
+  const nftBeforeOpt = await getNft(api, collectionId, nftId);
+
+  const tx = api.tx.rmrkCore.acceptNft(collectionId, nftId, newOwnerObj);
+  const events = await executeTransaction(api, issuer, tx);
+
+  const acceptResult = extractRmrkCoreTxResult(events, 'NFTAccepted', (data) => {
+    return {
+      recipient: data[1] as NftOwner,
+      collectionId: parseInt(data[2].toString(), 10),
+      nftId: parseInt(data[3].toString(), 10),
+    };
+  });
+
+  expect(acceptResult.success, 'Error: Unable to accept NFT').to.be.true;
+  const acceptData = acceptResult.successData!;
+
+  expect(acceptData.recipient.eq(newOwnerObj), 'Error: Invalid NFT recipient (from event data)')
+    .to.be.true;
+
+  expect(acceptData.collectionId)
+    .to.be.equal(collectionId, 'Error: Invalid collection ID (from event data)');
+
+  expect(acceptData.nftId)
+    .to.be.equal(nftId, 'Error: Invalid NFT ID (from event data)');
+
+  const nftBefore = nftBeforeOpt.unwrap();
+
+  const isPendingBeforeAccept = nftBefore.pending.isTrue;
+
+  const nftAfter = (await getNft(api, collectionId, nftId)).unwrap();
+  const isPendingAfterAccept = nftAfter.pending.isTrue;
+
+  expect(isPendingBeforeAccept, 'Error: NFT should be pending to be accepted')
+    .to.be.true;
+
+  expect(isPendingAfterAccept, 'Error: NFT should NOT be pending after accept')
+    .to.be.false;
+
+  const isOwnedInUniques = await isNftOwnedBy(api, newOwner, collectionId, nftId);
+  expect(isOwnedInUniques, `Error: created NFT is not actually owned by ${newOwner.toString()}`)
+    .to.be.true;
+}
+
+export async function rejectNft(
+  api: ApiPromise,
+  issuerUri: string,
+  collectionId: number,
+  nftId: number,
+) {
+  const ss58Format = api.registry.getChainProperties()!.toJSON().ss58Format;
+  const issuer = privateKey(issuerUri, Number(ss58Format));
+  const nftBeforeOpt = await getNft(api, collectionId, nftId);
+
+  const tx = api.tx.rmrkCore.rejectNft(collectionId, nftId);
+  const events = await executeTransaction(api, issuer, tx);
+  const rejectResult = extractRmrkCoreTxResult(events, 'NFTRejected', (data) => {
+    return {
+      collectionId: parseInt(data[1].toString(), 10),
+      nftId: parseInt(data[2].toString(), 10),
+    };
+  });
+
+  const rejectData = rejectResult.successData!;
+
+  expect(rejectData.collectionId)
+    .to.be.equal(collectionId, 'Error: Invalid collection ID (from event data)');
+
+  expect(rejectData.nftId)
+    .to.be.equal(nftId, 'Error: Invalid NFT ID (from event data)');
+
+  const nftBefore = nftBeforeOpt.unwrap();
+
+  const isPendingBeforeReject = nftBefore.pending.isTrue;
+
+  const nftAfter = await getNft(api, collectionId, nftId);
+
+  expect(isPendingBeforeReject, 'Error: NFT should be pending to be rejected')
+    .to.be.true;
+
+  expect(nftAfter.isNone, 'Error: NFT should be burned after reject')
+    .to.be.true;
+}
+
+export async function createBase(
+  api: ApiPromise,
+  issuerUri: string,
+  baseType: string,
+  symbol: string,
+  parts: object[],
+): Promise<number> {
+  let baseId = 0;
+  const ss58Format = api.registry.getChainProperties()!.toJSON().ss58Format;
+  const issuer = privateKey(issuerUri, Number(ss58Format));
+
+  const partTypes = api.createType('Vec<RmrkTraitsPartPartType>', parts) as Vec<PartType>;
+
+  const tx = api.tx.rmrkEquip.createBase(baseType, symbol, partTypes);
+  const events = await executeTransaction(api, issuer, tx);
+
+  const baseResult = extractRmrkEquipTxResult(events, 'BaseCreated', (data) => {
+    return parseInt(data[1].toString(), 10);
+  });
+
+  expect(baseResult.success, 'Error: Unable to create Base')
+    .to.be.true;
+
+  baseId = baseResult.successData!;
+  const baseOptional = await getBase(api, baseId);
+
+  expect(baseOptional.isSome, 'Error: Unable to fetch created Base')
+    .to.be.true;
+
+  const base = baseOptional.unwrap();
+  const baseParts = await getParts(api, baseId);
+
+  expect(base.issuer.toString()).to.be.equal(issuer.address, 'Error: Invalid Base issuer');
+  expect(base.baseType.toUtf8()).to.be.equal(baseType, 'Error: Invalid Base type');
+  expect(base.symbol.toUtf8()).to.be.equal(symbol, 'Error: Invalid Base symbol');
+  expect(partTypes.eq(baseParts), 'Error: Received invalid base parts').to.be.true;
+
+  return baseId;
+}
+
+export async function setResourcePriorities(
+  api: ApiPromise,
+  issuerUri: string,
+  collectionId: number,
+  nftId: number,
+  priorities: number[],
+) {
+  const ss58Format = api.registry.getChainProperties()!.toJSON().ss58Format;
+  const issuer = privateKey(issuerUri, Number(ss58Format));
+
+  const prioritiesVec = api.createType('Vec<u32>', priorities);
+  const tx = api.tx.rmrkCore.setPriority(collectionId, nftId, prioritiesVec);
+  const events = await executeTransaction(api, issuer, tx);
+
+  const prioResult = extractRmrkCoreTxResult(events, 'PrioritySet', (data) => {
+    return {
+      collectionId: parseInt(data[0].toString(), 10),
+      nftId: parseInt(data[1].toString(), 10),
+    };
+  });
+
+  expect(prioResult.success, 'Error: Unable to set resource priorities').to.be.true;
+  const eventData = prioResult.successData!;
+
+  expect(eventData.collectionId)
+    .to.be.equal(collectionId, 'Error: Invalid collection ID (set priorities event data)');
+
+  expect(eventData.nftId).to.be.equal(nftId, 'Error: Invalid NFT ID (set priorities event data');
+
+  for (let i = 0; i < priorities.length; i++) {
+    const resourceId = priorities[i];
+
+    const fetchedPrio = await getResourcePriority(api, collectionId, nftId, resourceId);
+    expect(fetchedPrio).to.be.equal(i, 'Error: Invalid priorities are set');
+  }
+
+}
+
+export async function setEquippableList(
+  api: ApiPromise,
+  issuerUri: string,
+  baseId: number,
+  slotId: number,
+  equippableList: 'All' | 'Empty' | { 'Custom': number[] },
+) {
+  const ss58Format = api.registry.getChainProperties()!.toJSON().ss58Format;
+  const issuer = privateKey(issuerUri, Number(ss58Format));
+  const equippable = api.createType('RmrkTraitsPartEquippableList', equippableList) as EquippableList;
+
+  const tx = api.tx.rmrkEquip.equippable(baseId, slotId, equippable);
+  const events = await executeTransaction(api, issuer, tx);
+
+  const equipListResult = extractRmrkEquipTxResult(events, 'EquippablesUpdated', (data) => {
+    return {
+      baseId: parseInt(data[0].toString(), 10),
+      slotId: parseInt(data[1].toString(), 10),
+    };
+  });
+
+  expect(equipListResult.success, 'Error: unable to update equippable list').to.be.true;
+  const updateEvent = equipListResult.successData!;
+
+  expect(updateEvent.baseId)
+    .to.be.equal(baseId, 'Error: invalid base ID from update equippable event');
+
+  expect(updateEvent.slotId)
+    .to.be.equal(slotId, 'Error: invalid base ID from update equippable event');
+
+  const fetchedEquippableList = await getEquippableList(api, baseId, slotId);
+
+  expect(fetchedEquippableList, 'Error: unable to fetch equippable list').to.be.not.null;
+  if (fetchedEquippableList) {
+    expect(fetchedEquippableList)
+      .to.be.deep.equal(equippableList, 'Error: invalid equippable list was set');
+  }
+}
+
+export async function addTheme(
+  api: ApiPromise,
+  issuerUri: string,
+  baseId: number,
+  themeObj: object,
+  filterKeys: string[] | null = null,
+) {
+  const ss58Format = api.registry.getChainProperties()!.toJSON().ss58Format;
+  const issuer = privateKey(issuerUri, Number(ss58Format));
+  const theme = api.createType('RmrkTraitsTheme', themeObj) as Theme;
+
+  const tx = api.tx.rmrkEquip.themeAdd(baseId, theme);
+  const events = await executeTransaction(api, issuer, tx);
+
+  expect(isTxResultSuccess(events), 'Error: Unable to add Theme').to.be.true;
+
+  const fetchedThemeOpt = await getTheme(api, baseId, theme.name.toUtf8(), null);
+
+  expect(fetchedThemeOpt.isSome, 'Error: Unable to fetch theme').to.be.true;
+
+  const fetchedTheme = fetchedThemeOpt.unwrap();
+
+  expect(theme.name.eq(fetchedTheme.name), 'Error: Invalid theme name').to.be.true;
+
+  for (let i = 0; i < theme.properties.length; i++) {
+    const property = theme.properties[i];
+    const propertyKey = property.key.toUtf8();
+
+    const propertyFoundCount = fetchedTheme.properties.filter((fetchedProp) => property.key.eq(fetchedProp.key)).length;
+
+    expect(propertyFoundCount > 1, `Error: Too many properties with key ${propertyKey} found`)
+      .to.be.false;
+
+    if (filterKeys) {
+      const isFiltered = fetchedTheme.properties.find((fetchedProp) => fetchedProp.key.eq(property.key)) === undefined;
+
+      if (isFiltered) {
+        expect(propertyFoundCount === 0, `Error: Unexpected filtered key ${propertyKey}`)
+          .to.be.true;
+        continue;
+      }
+    }
+
+    expect(propertyFoundCount === 1, `Error: The property with key ${propertyKey} is not found`)
+      .to.be.true;
+  }
+}
+
+export async function lockCollection(
+  api: ApiPromise,
+  issuerUri: string,
+  collectionId: number,
+  max = 0,
+) {
+  const ss58Format = api.registry.getChainProperties()!.toJSON().ss58Format;
+  const issuer = privateKey(issuerUri, Number(ss58Format));
+  const tx = api.tx.rmrkCore.lockCollection(collectionId);
+  const events = await executeTransaction(api, issuer, tx);
+  const lockResult = extractRmrkCoreTxResult(events, 'CollectionLocked', (data) => {
+    return parseInt(data[1].toString(), 10);
+  });
+  expect(lockResult.success, 'Error: Unable to lock a collection').to.be.true;
+  expect(lockResult.successData!, 'Error: Invalid collection was locked')
+    .to.be.eq(collectionId);
+
+  await getCollection(api, collectionId).then((collectionOption) => {
+    const collection = collectionOption.unwrap();
+    expect(collection.max.unwrap().toNumber()).to.be.equal(max);
+  });
+}
+
+export async function setPropertyCollection(
+  api: ApiPromise,
+  issuerUri: string,
+  collectionId: number,
+  key: string,
+  value: string,
+) {
+  const ss58Format = api.registry.getChainProperties()!.toJSON().ss58Format;
+  const alice = privateKey(issuerUri, Number(ss58Format));
+
+  const tx = api.tx.rmrkCore.setProperty(collectionId, null, key, value);
+  const events = await executeTransaction(api, alice, tx);
+  const propResult = extractRmrkCoreTxResult(events, 'PropertySet', (data) => {
+    return {
+      collectionId: parseInt(data[0].toString(), 10),
+      nftId: data[1] as Option<u32>,
+      key: data[2] as Bytes,
+      value: data[3] as Bytes,
+    };
+  });
+
+  expect(propResult.success, 'Error: Unable to set collection property').to.be.true;
+  const eventData = propResult.successData!;
+  const eventDescription = 'from set collection property event';
+
+  expect(eventData.collectionId, 'Error: Invalid collection ID ' + eventDescription)
+    .to.be.equal(collectionId);
+
+  expect(eventData.nftId.eq(null), 'Error: Unexpected NFT ID ' + eventDescription)
+    .to.be.true;
+
+  expect(eventData.key.eq(key), 'Error: Invalid property key ' + eventDescription)
+    .to.be.true;
+
+  expect(eventData.value.eq(value), 'Error: Invalid property value ' + eventDescription)
+    .to.be.true;
+
+  expect(await isCollectionPropertyExists(api, collectionId, key, value))
+    .to.be.true;
+}
+
+export async function burnNft(
+  api: ApiPromise,
+  issuerUri: string,
+  collectionId: number,
+  nftId: number,
+) {
+  const ss58Format = api.registry.getChainProperties()!.toJSON().ss58Format;
+  const issuer = privateKey(issuerUri, Number(ss58Format));
+  const maxBurns = 10;
+  const tx = api.tx.rmrkCore.burnNft(collectionId, nftId, maxBurns);
+  const events = await executeTransaction(api, issuer, tx);
+  const burnResult = extractRmrkCoreTxResult(events, 'NFTBurned', (data) => {
+    return parseInt(data[1].toString(), 10);
+  });
+
+  expect(burnResult.success, 'Error: Unable to burn an NFT').to.be.true;
+  expect(burnResult.successData!, 'Error: Invalid NFT was burned')
+    .to.be.eq(nftId);
+
+  const nftBurned = await getNft(api, collectionId, nftId);
+  expect(nftBurned.isSome).to.be.false;
+}
+
+export async function acceptNftResource(
+  api: ApiPromise,
+  issuerUri: string,
+  collectionId: number,
+  nftId: number,
+  resourceId: number,
+) {
+  const ss58Format = api.registry.getChainProperties()!.toJSON().ss58Format;
+  const issuer = privateKey(issuerUri, Number(ss58Format));
+
+  const tx = api.tx.rmrkCore.acceptResource(
+    collectionId,
+    nftId,
+    resourceId,
+  );
+
+  const events = await executeTransaction(api, issuer, tx);
+  const acceptResult = extractRmrkCoreTxResult(events, 'ResourceAccepted', (data) => {
+    return {
+      nftId: parseInt(data[0].toString(), 10),
+      resourceId: parseInt(data[1].toString(), 10),
+    };
+  });
+
+  expect(acceptResult.success, 'Error: Unable to accept a resource').to.be.true;
+  expect(acceptResult.successData!.nftId, 'Error: Invalid NFT ID while accepting a resource')
+    .to.be.eq(nftId);
+  expect(acceptResult.successData!.resourceId, 'Error: Invalid resource ID while accepting a resource')
+    .to.be.eq(resourceId);
+
+  const resource = await getResourceById(api, collectionId, nftId, resourceId);
+  checkResourceStatus(resource, 'added');
+}
+
+async function executeResourceCreation(
+  api: ApiPromise,
+  issuer: IKeyringPair,
+  tx: any,
+  collectionId: number,
+  nftId: number,
+  expectedStatus: 'pending' | 'added',
+): Promise<ResourceInfo> {
+  const events = await executeTransaction(api, issuer, tx);
+
+  const resourceResult = extractRmrkCoreTxResult(events, 'ResourceAdded', (data) => {
+    return parseInt(data[1].toString(), 10);
+  });
+  expect(resourceResult.success, 'Error: Unable to add resource').to.be.true;
+  const resourceId = resourceResult.successData!;
+
+  const resource = await getResourceById(api, collectionId, nftId, resourceId);
+  checkResourceStatus(resource, expectedStatus);
+
+  return resource;
+}
+
+export async function addNftBasicResource(
+  api: ApiPromise,
+  issuerUri: string,
+  expectedStatus: 'pending' | 'added',
+  collectionId: number,
+  nftId: number,
+  src: string | null,
+  metadata: string | null,
+  license: string | null,
+  thumb: string | null,
+): Promise<number> {
+  const ss58Format = api.registry.getChainProperties()!.toJSON().ss58Format;
+  const issuer = privateKey(issuerUri, Number(ss58Format));
+
+  const basicResource = api.createType('RmrkTraitsResourceBasicResource', {
+    src: src,
+    metadata: metadata,
+    license: license,
+    thumb: thumb,
+  }) as BasicResource;
+
+  const tx = api.tx.rmrkCore.addBasicResource(
+    collectionId,
+    nftId,
+    basicResource,
+  );
+
+  const resource = await executeResourceCreation(api, issuer, tx, collectionId, nftId, expectedStatus);
+
+  // FIXME A workaround. It seems it is a PolkadotJS bug.
+  // All of the following are `false`.
+  //
+  // console.log('>>> basic:', resource.resource.isBasic);
+  // console.log('>>> composable:', resource.resource.isComposable);
+  // console.log('>>> slot:', resource.resource.isSlot);
+  const resourceJson = resource.resource.toHuman() as any;
+
+  expect(Object.prototype.hasOwnProperty.call(resourceJson, 'Basic'), 'Error: Expected basic resource type')
+    .to.be.true;
+
+  const recvBasicRes = resourceJson['Basic'];
+
+  expect(recvBasicRes.src, 'Error: Invalid basic resource src')
+    .to.be.eq(src);
+  expect(recvBasicRes.metadata, 'Error: basic first resource metadata')
+    .to.be.eq(metadata);
+  expect(recvBasicRes.license, 'Error: basic first resource license')
+    .to.be.eq(license);
+  expect(recvBasicRes.thumb, 'Error: basic first resource thumb')
+    .to.be.eq(thumb);
+
+  return resource.id.toNumber();
+}
+
+export async function addNftComposableResource(
+  api: ApiPromise,
+  issuerUri: string,
+  expectedStatus: 'pending' | 'added',
+  collectionId: number,
+  nftId: number,
+  parts: number[],
+  baseId: number,
+  src: string | null,
+  metadata: string | null,
+  license: string | null,
+  thumb: string | null,
+): Promise<number> {
+  const ss58Format = api.registry.getChainProperties()!.toJSON().ss58Format;
+  const issuer = privateKey(issuerUri, Number(ss58Format));
+
+  const composableResource = api.createType('RmrkTraitsResourceComposableResource', {
+    parts: parts, // api.createType('Vec<u32>', parts),
+    base: baseId,
+    src: src,
+    metadata: metadata,
+    license: license,
+    thumb: thumb,
+  }) as ComposableResource;
+
+  const tx = api.tx.rmrkCore.addComposableResource(
+    collectionId,
+    nftId,
+    composableResource,
+  );
+
+  const resource = await executeResourceCreation(api, issuer, tx, collectionId, nftId, expectedStatus);
+
+  // FIXME A workaround. It seems it is a PolkadotJS bug.
+  // All of the following are `false`.
+  //
+  // console.log('>>> basic:', resource.resource.isBasic);
+  // console.log('>>> composable:', resource.resource.isComposable);
+  // console.log('>>> slot:', resource.resource.isSlot);
+  const resourceJson = resource.resource.toHuman() as any;
+
+  expect(Object.prototype.hasOwnProperty.call(resourceJson, 'Composable'), 'Error: Expected composable resource type')
+    .to.be.true;
+
+  const recvComposableRes = resourceJson['Composable'];
+
+  expect(recvComposableRes.parts.toString(), 'Error: Invalid composable resource parts')
+    .to.be.eq(parts.toString());
+  expect(recvComposableRes.base, 'Error: Invalid composable resource base id')
+    .to.be.eq(baseId.toString());
+  expect(recvComposableRes.src, 'Error: Invalid composable resource src')
+    .to.be.eq(src);
+  expect(recvComposableRes.metadata, 'Error: Invalid composable resource metadata')
+    .to.be.eq(metadata);
+  expect(recvComposableRes.license, 'Error: Invalid composable resource license')
+    .to.be.eq(license);
+  expect(recvComposableRes.thumb, 'Error: Invalid composable resource thumb')
+    .to.be.eq(thumb);
+
+  return resource.id.toNumber();
+}
+
+export async function addNftSlotResource(
+  api: ApiPromise,
+  issuerUri: string,
+  expectedStatus: 'pending' | 'added',
+  collectionId: number,
+  nftId: number,
+  baseId: number,
+  slotId: number,
+  src: string | null,
+  metadata: string | null,
+  license: string | null,
+  thumb: string | null,
+): Promise<number>  {
+  const ss58Format = api.registry.getChainProperties()!.toJSON().ss58Format;
+  const issuer = privateKey(issuerUri, Number(ss58Format));
+
+  const slotResource = api.createType('RmrkTraitsResourceSlotResource', {
+    base: baseId,
+    src: src,
+    metadata,
+    slot: slotId,
+    license: license,
+    thumb: thumb,
+  }) as SlotResource;
+
+  const tx = api.tx.rmrkCore.addSlotResource(
+    collectionId,
+    nftId,
+    slotResource,
+  );
+
+  const resource = await executeResourceCreation(api, issuer, tx, collectionId, nftId, expectedStatus);
+
+  // FIXME A workaround. It seems it is a PolkadotJS bug.
+  // All of the following are `false`.
+  //
+  // console.log('>>> basic:', resource.resource.isBasic);
+  // console.log('>>> composable:', resource.resource.isComposable);
+  // console.log('>>> slot:', resource.resource.isSlot);
+  const resourceJson = resource.resource.toHuman() as any;
+
+  expect(Object.prototype.hasOwnProperty.call(resourceJson, 'Slot'), 'Error: Expected slot resource type')
+    .to.be.true;
+
+  const recvSlotRes = resourceJson['Slot'];
+
+  expect(recvSlotRes.base, 'Error: Invalid slot resource base id')
+    .to.be.eq(baseId.toString());
+  expect(recvSlotRes.slot, 'Error: Invalid slot resource slot id')
+    .to.be.eq(slotId.toString());
+  expect(recvSlotRes.src, 'Error: Invalid slot resource src')
+    .to.be.eq(src);
+  expect(recvSlotRes.metadata, 'Error: Invalid slot resource metadata')
+    .to.be.eq(metadata);
+  expect(recvSlotRes.license, 'Error: Invalid slot resource license')
+    .to.be.eq(license);
+  expect(recvSlotRes.thumb, 'Error: Invalid slot resource thumb')
+    .to.be.eq(thumb);
+
+  return resource.id.toNumber();
+}
+
+export async function equipNft(
+  api: ApiPromise,
+  issuerUri: string,
+  item: NftIdTuple,
+  equipper: NftIdTuple,
+  resource: number,
+  base: number,
+  slot: number,
+) {
+  const ss58Format = api.registry.getChainProperties()!.toJSON().ss58Format;
+  const issuer = privateKey(issuerUri, Number(ss58Format));
+  const tx = api.tx.rmrkEquip.equip(item, equipper, resource, base, slot);
+  const events = await executeTransaction(api, issuer, tx);
+  const equipResult = extractRmrkEquipTxResult(events, 'SlotEquipped', (data) => {
+    return {
+      item_collection: parseInt(data[0].toString(), 10),
+      item_nft: parseInt(data[1].toString(), 10),
+      base_id: parseInt(data[2].toString(), 10),
+      slot_id: parseInt(data[3].toString(), 10),
+    };
+  });
+  expect(equipResult.success, 'Error: Unable to equip an item').to.be.true;
+  expect(equipResult.successData!.item_collection, 'Error: Invalid item collection id')
+    .to.be.eq(item[0]);
+  expect(equipResult.successData!.item_nft, 'Error: Invalid item NFT id')
+    .to.be.eq(item[1]);
+  expect(equipResult.successData!.base_id, 'Error: Invalid base id')
+    .to.be.eq(base);
+  expect(equipResult.successData!.slot_id, 'Error: Invalid slot id')
+    .to.be.eq(slot);
+}
+
+export async function unequipNft(
+  api: ApiPromise,
+  issuerUri: string,
+  item: any,
+  equipper: any,
+  resource: number,
+  base: number,
+  slot: number,
+) {
+  const ss58Format = api.registry.getChainProperties()!.toJSON().ss58Format;
+  const issuer = privateKey(issuerUri, Number(ss58Format));
+  const tx = api.tx.rmrkEquip.equip(item, equipper, resource, base, slot);
+  const events = await executeTransaction(api, issuer, tx);
+
+  const unEquipResult = extractRmrkEquipTxResult(
+    events,
+    'SlotUnequipped',
+    (data) => {
+      return {
+        item_collection: parseInt(data[0].toString(), 10),
+        item_nft: parseInt(data[1].toString(), 10),
+        base_id: parseInt(data[2].toString(), 10),
+        slot_id: parseInt(data[3].toString(), 10),
+      };
+    },
+  );
+
+  expect(unEquipResult.success, 'Error: Unable to unequip an item').to.be.true;
+  expect(unEquipResult.successData!.item_collection, 'Error: Invalid item collection id')
+    .to.be.eq(item[0]);
+  expect(unEquipResult.successData!.item_nft, 'Error: Invalid item NFT id')
+    .to.be.eq(item[1]);
+  expect(unEquipResult.successData!.base_id, 'Error: Invalid base id')
+    .to.be.eq(base);
+  expect(unEquipResult.successData!.slot_id, 'Error: Invalid slot id')
+    .to.be.eq(slot);
+}
+
+export async function removeNftResource(
+  api: ApiPromise,
+  expectedStatus: 'pending' | 'removed',
+  issuerUri: string,
+  collectionId: number,
+  nftId: number,
+  resourceId: number,
+) {
+  const ss58Format = api.registry.getChainProperties()!.toJSON().ss58Format;
+  const issuer = privateKey(issuerUri, Number(ss58Format));
+
+  const tx = api.tx.rmrkCore.removeResource(collectionId, nftId, resourceId);
+  const events = await executeTransaction(api, issuer, tx);
+  const removeResult = extractRmrkCoreTxResult(events, 'ResourceRemoval', (data) => {
+    return {
+      nftId: parseInt(data[0].toString(), 10),
+      resourceId: parseInt(data[1].toString(), 10),
+    };
+  });
+  expect(removeResult.success, 'Error: Unable to remove a resource').to.be.true;
+  expect(removeResult.successData!.nftId, 'Error: Invalid NFT Id while removing a resource')
+    .to.be.eq(nftId);
+  expect(removeResult.successData!.resourceId, 'Error: Invalid resource Id while removing a resource')
+    .to.be.eq(resourceId);
+
+  const afterDeleting = await findResourceById(api, collectionId, nftId, resourceId);
+
+  if (expectedStatus === 'pending') {
+    expect(afterDeleting).not.to.be.null;
+    expect(afterDeleting?.pendingRemoval.isTrue).to.be.equal(true);
+  } else {
+    expect(afterDeleting).to.be.null;
+  }
+}
+
+export async function acceptResourceRemoval(
+  api: ApiPromise,
+  issuerUri: string,
+  collectionId: number,
+  nftId: number,
+  resourceId: number,
+) {
+  const ss58Format = api.registry.getChainProperties()!.toJSON().ss58Format;
+  const issuer = privateKey(issuerUri, Number(ss58Format));
+
+  const tx = api.tx.rmrkCore.acceptResourceRemoval(collectionId, nftId, resourceId);
+  const events = await executeTransaction(api, issuer, tx);
+  const acceptResult = extractRmrkCoreTxResult(events, 'ResourceRemovalAccepted', (data) => {
+    return {
+      nftId: parseInt(data[0].toString(), 10),
+      resourceId: parseInt(data[1].toString(), 10),
+    };
+  });
+  expect(acceptResult.success, 'Error: Unable to accept a resource').to.be.true;
+  expect(acceptResult.successData!.nftId, 'Error: Invalid NFT Id while accepting a resource')
+    .to.be.eq(nftId);
+  expect(acceptResult.successData!.resourceId, 'Error: Invalid resource Id while accepting a resource')
+    .to.be.eq(resourceId);
+
+  const afterDeleting = await findResourceById(api, collectionId, nftId, resourceId);
+  expect(afterDeleting, 'Error: resource deleting failed').to.be.null;
+}
addedtests/src/.outdated/substrate/get-balance.tsdiffbeforeafterboth
--- /dev/null
+++ b/tests/src/.outdated/substrate/get-balance.ts
@@ -0,0 +1,40 @@
+// 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 {ApiPromise} from '@polkadot/api';
+import {AccountInfo} from '@polkadot/types/interfaces/system';
+import promisifySubstrate from './promisify-substrate';
+import {IKeyringPair} from '@polkadot/types/types';
+import {submitTransactionAsync} from './substrate-api';
+import {getGenericResult} from '../deprecated-helpers/helpers';
+import {expect} from 'chai';
+
+export default async function getBalance(api: ApiPromise, accounts: string[]): Promise<Array<bigint>> {
+  const balance = promisifySubstrate(api, (acc: string[]) => api.query.system.account.multi(acc));
+  const responce = await balance(accounts) as unknown as AccountInfo[];
+  return responce.map((r) => r.data.free.toBigInt().valueOf());
+}
+
+export async function getBalanceSingle(api: ApiPromise, account: string): Promise<bigint> {
+  return (await getBalance(api, [account]))[0];
+}
+
+export async function transferBalanceExpectSuccess(api: ApiPromise, from: IKeyringPair, to: string, amount: bigint | string) {
+  const tx = api.tx.balances.transfer(to, amount);
+  const events = await submitTransactionAsync(from, tx);
+  const result = getGenericResult(events);
+  expect(result.success).to.be.true;
+}
addedtests/src/.outdated/substrate/privateKey.tsdiffbeforeafterboth
--- /dev/null
+++ b/tests/src/.outdated/substrate/privateKey.ts
@@ -0,0 +1,26 @@
+// 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 {Keyring} from '@polkadot/api';
+import {IKeyringPair} from '@polkadot/types/types';
+
+// WARNING: the WASM interface must be initialized before this function is called. 
+// Use either `usingApi`, or `cryptoWaitReady` for consistency.
+export default function privateKey(account: string, ss58Format?: number): IKeyringPair {
+  const keyring = new Keyring({ss58Format, type: 'sr25519'});
+
+  return keyring.addFromUri(account);
+}
addedtests/src/.outdated/substrate/promisify-substrate.tsdiffbeforeafterboth
--- /dev/null
+++ b/tests/src/.outdated/substrate/promisify-substrate.ts
@@ -0,0 +1,50 @@
+// 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 {ApiPromise} from '@polkadot/api';
+
+type PromiseType<T> = T extends PromiseLike<infer TInner> ? TInner : T;
+
+export default function promisifySubstrate<T extends (...args: any[]) => any>(api: ApiPromise, action: T): (...args: Parameters<T>) => Promise<PromiseType<ReturnType<T>>> {
+  return (...args: Parameters<T>) => {
+    const promise = new Promise<PromiseType<ReturnType<T>>>((resolve: ((result: PromiseType<ReturnType<T>>) => void) | undefined, reject: ((error: any) => void) | undefined) => {
+      const cleanup = () => {
+        api.off('disconnected', fail);
+        api.off('error', fail);
+        resolve = undefined;
+        reject = undefined;
+      };
+
+      const success = (r: any) => {
+        resolve && resolve(r);
+        cleanup();
+      };
+      const fail = (error: any) => {
+        reject && reject(error);
+        cleanup();
+      };
+
+      api.on('disconnected', fail);
+      api.on('error', fail);
+
+      const result = action(...args);
+      Promise.resolve(result)
+        .then(success, fail);
+
+    });
+    return promise as any;
+  };
+}
addedtests/src/.outdated/substrate/substrate-api.tsdiffbeforeafterboth
--- /dev/null
+++ b/tests/src/.outdated/substrate/substrate-api.ts
@@ -0,0 +1,226 @@
+// 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 {ApiPromise, WsProvider} from '@polkadot/api';
+import {ApiOptions, ApiTypes, SubmittableExtrinsic} from '@polkadot/api/types';
+import {ExtrinsicStatus} from '@polkadot/types/interfaces/author/types';
+import {EventRecord} from '@polkadot/types/interfaces/system/types';
+import {IKeyringPair} from '@polkadot/types/types';
+import config from '../../config';
+import '../../interfaces/augment-api-events';
+import * as defs from '../../interfaces/definitions';
+import privateKey from './privateKey';
+import promisifySubstrate from './promisify-substrate';
+
+import {SilentConsole} from '../../util/playgrounds/unique.dev';
+
+
+
+function defaultApiOptions(): ApiOptions {
+  const wsProvider = new WsProvider(config.substrateUrl);
+  return {
+    provider: wsProvider, signedExtensions: {
+      ContractHelpers: {
+        extrinsic: {},
+        payload: {},
+      },
+      CheckMaintenance: {
+        extrinsic: {},
+        payload: {},
+      },
+      FakeTransactionFinalizer: {
+        extrinsic: {},
+        payload: {},
+      },
+    },
+    rpc: {
+      unique: defs.unique.rpc,
+      appPromotion: defs.appPromotion.rpc,
+      rmrk: defs.rmrk.rpc,
+      eth: {
+        feeHistory: {
+          description: 'Dummy',
+          params: [],
+          type: 'u8',
+        },
+        maxPriorityFeePerGas: {
+          description: 'Dummy',
+          params: [],
+          type: 'u8',
+        },
+      },
+    },
+  };
+}
+
+export async function getApiConnection(settings: ApiOptions | undefined = undefined): Promise<ApiPromise> {
+  settings = settings || defaultApiOptions();
+  const api = new ApiPromise(settings);
+
+  if (api) {
+    await api.isReadyOrError;
+  }
+
+  return api;
+}
+
+export default async function usingApi<T = void>(action: (api: ApiPromise, privateKeyWrapper: (account: string) => IKeyringPair) => Promise<T>, settings: ApiOptions | undefined = undefined): Promise<T> {
+  settings = settings || defaultApiOptions();
+  const api: ApiPromise = new ApiPromise(settings);
+  let result: T = null as unknown as T;
+
+  const silentConsole = new SilentConsole();
+  silentConsole.enable();
+
+  try {
+    await promisifySubstrate(api, async () => {
+      if (api) {
+        await api.isReadyOrError;
+        const ss58Format = (api.registry.getChainProperties())!.toJSON().ss58Format;
+        const privateKeyWrapper = (account: string) => privateKey(account, Number(ss58Format));
+        result = await action(api, privateKeyWrapper);
+      }
+    })();
+  } finally {
+    await api.disconnect();
+    silentConsole.disable();
+  }
+  return result as T;
+}
+
+enum TransactionStatus {
+  Success,
+  Fail,
+  NotReady
+}
+
+function getTransactionStatus(events: EventRecord[], status: ExtrinsicStatus): TransactionStatus {
+  if (status.isReady) {
+    return TransactionStatus.NotReady;
+  }
+  if (status.isBroadcast) {
+    return TransactionStatus.NotReady;
+  }
+  if (status.isRetracted) {
+    return TransactionStatus.NotReady;
+  }
+  if (status.isInBlock || status.isFinalized) {
+    if(events.filter(e => e.event.data.method === 'ExtrinsicFailed').length > 0) {
+      return TransactionStatus.Fail;
+    }
+    if(events.filter(e => e.event.data.method === 'ExtrinsicSuccess').length > 0) {
+      return TransactionStatus.Success;
+    }
+  }
+
+  return TransactionStatus.Fail;
+}
+
+export function executeTransaction(api: ApiPromise, sender: IKeyringPair, transaction: SubmittableExtrinsic<'promise'>): Promise<EventRecord[]> {
+  return new Promise(async (res, rej) => {
+    try {
+      await transaction.signAndSend(sender, ({events, status}) => {
+        if (!status.isInBlock && !status.isFinalized) return;
+        for (const {event} of events) {
+          if (api.events.system.ExtrinsicSuccess.is(event)) {
+            res(events);
+          } else if (api.events.system.ExtrinsicFailed.is(event)) {
+            const {data: [error]} = event;
+            if (error.isModule) {
+              const decoded = api.registry.findMetaError(error.asModule);
+              const {method, section} = decoded;
+              rej(new Error(`${section}.${method}`));
+            } else {
+              rej(new Error(error.toString()));
+            }
+          }
+        }
+      });
+    } catch (e) {
+      rej(e);
+    }
+  });
+}
+
+/**
+ * @deprecated use `executeTransaction` instead
+ */
+export function
+submitTransactionAsync(sender: IKeyringPair, transaction: SubmittableExtrinsic<ApiTypes>): Promise<EventRecord[]> {
+  /* eslint no-async-promise-executor: "off" */
+  return new Promise(async (resolve, reject) => {
+    try {
+      await transaction.signAndSend(sender, ({events = [], status, dispatchError}) => {
+        const transactionStatus = getTransactionStatus(events, status);
+
+        if (transactionStatus === TransactionStatus.Success) {
+          resolve(events);
+        } else if (transactionStatus === TransactionStatus.Fail) {
+          let moduleError = null;
+
+          if (dispatchError) {
+            if (dispatchError.isModule) {
+              const modErr = dispatchError.asModule;
+              const errorMeta = dispatchError.registry.findMetaError(modErr);
+
+              moduleError = JSON.stringify(errorMeta, null, 4);
+            }
+          }
+
+          console.log(`Something went wrong with transaction. Status: ${status}\nModule error: ${moduleError}`);
+          reject(events);
+        }
+      });
+    } catch (e) {
+      console.log('Error: ', e);
+      reject(e);
+    }
+  });
+}
+
+export function submitTransactionExpectFailAsync(sender: IKeyringPair, transaction: SubmittableExtrinsic<ApiTypes>): Promise<EventRecord[]> {
+  console.error = () => {};
+  console.log = () => {};
+
+  /* eslint no-async-promise-executor: "off" */
+  return new Promise<EventRecord[]>(async function(res, rej) {
+    const resolve = (rec: EventRecord[]) => {
+      setTimeout(() => {
+        res(rec);
+      });
+    };
+    const reject = (errror: any) => {
+      setTimeout(() => {
+        rej(errror);
+      });
+    };
+    try {
+      await transaction.signAndSend(sender, ({events = [], status}) => {
+        const transactionStatus = getTransactionStatus(events, status);
+
+        // console.log('transactionStatus', transactionStatus, 'events', events);
+
+        if (transactionStatus === TransactionStatus.Success) {
+          resolve(events);
+        } else if (transactionStatus === TransactionStatus.Fail) {
+          reject(events);
+        }
+      });
+    } catch (e) {
+      reject(e);
+    }
+  });
+}
addedtests/src/.outdated/substrate/wait-new-blocks.tsdiffbeforeafterboth
--- /dev/null
+++ b/tests/src/.outdated/substrate/wait-new-blocks.ts
@@ -0,0 +1,34 @@
+// 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 {ApiPromise} from '@polkadot/api';
+
+/* eslint no-async-promise-executor: "off" */
+export default function waitNewBlocks(api: ApiPromise, blocksCount = 1): Promise<void> {
+  const promise = new Promise<void>(async (resolve) => {
+
+    const unsubscribe = await api.rpc.chain.subscribeNewHeads(() => {
+      if (blocksCount > 0) {
+        blocksCount--;
+      } else {
+        unsubscribe();
+        resolve();
+      }
+    });
+  });
+
+  return promise;
+}
modifiedtests/src/calibrateApply.tsdiffbeforeafterboth
--- a/tests/src/calibrateApply.ts
+++ b/tests/src/calibrateApply.ts
@@ -1,6 +1,6 @@
 import {readFile, writeFile} from 'fs/promises';
 import path from 'path';
-import usingApi from './substrate/substrate-api';
+import usingApi from './.outdated/substrate/substrate-api';
 
 const formatNumber = (num: string): string => num.split('').reverse().join('').replace(/([0-9]{3})/g, '$1_').split('').reverse().join('').replace(/^_/, '');
 
modifiedtests/src/eth/allowlist.test.tsdiffbeforeafterboth
--- a/tests/src/eth/allowlist.test.ts
+++ b/tests/src/eth/allowlist.test.ts
@@ -15,7 +15,8 @@
 // along with Unique Network. If not, see <http://www.gnu.org/licenses/>.
 
 import {IKeyringPair} from '@polkadot/types/types';
-import {itEth, usingEthPlaygrounds, expect} from './util';
+import {Pallets} from '../util';
+import {itEth, usingEthPlaygrounds, expect, SponsoringMode} from './util';
 
 describe('EVM contract allowlist', () => {
   let donor: IKeyringPair;
@@ -91,85 +92,120 @@
     expect(await collectionEvm.methods.allowlistedCross(crossUser).call({from: owner})).to.be.false;
   });
 
-  itEth('Collection allowlist can be added and removed by [cross] address', async ({helper}) => {
-    const owner = (await helper.eth.createAccountWithBalance(donor)).toLowerCase();
-    const [userSub] = await helper.arrange.createAccounts([10n], donor);
-    const userEth = await helper.eth.createAccountWithBalance(donor);
-    
-    const {collectionAddress, collectionId} = await helper.eth.createNFTCollection(owner, 'A', 'B', 'C');
-    const collectionEvm = helper.ethNativeContract.collection(collectionAddress, 'nft', owner);
-    const userCrossSub = helper.ethCrossAccount.fromKeyringPair(userSub);
-    const userCrossEth = helper.ethCrossAccount.fromAddress(userEth);
-    const ownerCrossEth = helper.ethCrossAccount.fromAddress(owner);
-    
-    // Can addToCollectionAllowListCross:
-    expect(await helper.collection.allowed(collectionId, {Substrate: userSub.address})).to.be.false;
-    await collectionEvm.methods.addToCollectionAllowListCross(userCrossSub).send({from: owner});
-    await collectionEvm.methods.addToCollectionAllowListCross(userCrossEth).send({from: owner});
-    await collectionEvm.methods.addToCollectionAllowListCross(ownerCrossEth).send({from: owner});
-    expect(await helper.collection.allowed(collectionId, {Substrate: userSub.address})).to.be.true;
-    expect(await helper.collection.allowed(collectionId, {Ethereum: userEth})).to.be.true;
-    expect(await collectionEvm.methods.allowlistedCross(userCrossSub).call({from: owner})).to.be.true;
-    expect(await collectionEvm.methods.allowlistedCross(userCrossEth).call({from: owner})).to.be.true;
 
-    await collectionEvm.methods.mint(userEth).send(); // token #1
-    await collectionEvm.methods.mint(userEth).send(); // token #2
-    await collectionEvm.methods.setCollectionAccess(1).send();
-    
-    // allowlisted account can transfer and transferCross:
-    await collectionEvm.methods.transfer(owner, 1).send({from: userEth});
-    await collectionEvm.methods.transferCross(userCrossSub, 2).send({from: userEth});
-    expect(await helper.nft.getTokenOwner(collectionId, 1)).to.deep.eq({Ethereum: owner});
-    expect(await helper.nft.getTokenOwner(collectionId, 2)).to.deep.eq({Substrate: userSub.address});
-    
-    // can removeFromCollectionAllowListCross:
-    await collectionEvm.methods.removeFromCollectionAllowListCross(userCrossSub).send({from: owner});
-    await collectionEvm.methods.removeFromCollectionAllowListCross(userCrossEth).send({from: owner});
-    expect(await helper.collection.allowed(collectionId, {Substrate: userSub.address})).to.be.false;
-    expect(await helper.collection.allowed(collectionId, {Ethereum: userEth})).to.be.false;
-    expect(await collectionEvm.methods.allowlistedCross(userCrossSub).call({from: owner})).to.be.false;
-    expect(await collectionEvm.methods.allowlistedCross(userCrossEth).call({from: owner})).to.be.false;
+  [
+    {mode: 'nft' as const, requiredPallets: []},
+    {mode: 'rft' as const, requiredPallets: [Pallets.ReFungible]},
+    {mode: 'ft' as const, requiredPallets: []},
+  ].map(testCase => 
+    itEth.ifWithPallets(`Collection allowlist can be added and removed by [cross] address for ${testCase.mode}`, testCase.requiredPallets, async ({helper}) => {
+      const owner = (await helper.eth.createAccountWithBalance(donor)).toLowerCase();
+      const [userSub] = await helper.arrange.createAccounts([10n], donor);
+      const userEth = await helper.eth.createAccountWithBalance(donor);
+      const mintParams = testCase.mode === 'ft' ? [userEth, 100] : [userEth];
+      
+      const {collectionAddress, collectionId} = await helper.eth.createCollection(testCase.mode, owner, 'A', 'B', 'C');
+      const collectionEvm = helper.ethNativeContract.collection(collectionAddress, testCase.mode, owner);
+      const userCrossSub = helper.ethCrossAccount.fromKeyringPair(userSub);
+      const userCrossEth = helper.ethCrossAccount.fromAddress(userEth);
+      const ownerCrossEth = helper.ethCrossAccount.fromAddress(owner);
+      
+      // Can addToCollectionAllowListCross:
+      expect(await helper.collection.allowed(collectionId, {Substrate: userSub.address})).to.be.false;
+      await collectionEvm.methods.addToCollectionAllowListCross(userCrossSub).send({from: owner});
+      await collectionEvm.methods.addToCollectionAllowListCross(userCrossEth).send({from: owner});
+      await collectionEvm.methods.addToCollectionAllowListCross(ownerCrossEth).send({from: owner});
+
+      // Accounts are in allowed list:
+      expect(await helper.collection.allowed(collectionId, {Substrate: userSub.address})).to.be.true;
+      expect(await helper.collection.allowed(collectionId, {Ethereum: userEth})).to.be.true;
+      expect(await collectionEvm.methods.allowlistedCross(userCrossSub).call({from: owner})).to.be.true;
+      expect(await collectionEvm.methods.allowlistedCross(userCrossEth).call({from: owner})).to.be.true;
+  
+      await collectionEvm.methods.mint(...mintParams).send({from: owner}); // token #1
+      await collectionEvm.methods.mint(...mintParams).send({from: owner}); // token #2
+      await collectionEvm.methods.setCollectionAccess(SponsoringMode.Allowlisted).send({from: owner});
+      
+      // allowlisted account can transfer and transferCross from eth:
+      await collectionEvm.methods.transfer(owner, 1).send({from: userEth});
+      await collectionEvm.methods.transferCross(userCrossSub, 2).send({from: userEth});
 
-    // cannot transfer anymore
-    await collectionEvm.methods.mint(userEth).send();
-    await expect(collectionEvm.methods.transfer(owner, 2).send({from: userEth})).to.be.rejectedWith(/Transaction has been reverted/);
-  });
+      if (testCase.mode === 'ft') {
+        expect(await helper.ft.getBalance(collectionId, {Ethereum: owner})).to.eq(1n);
+        expect(await helper.ft.getBalance(collectionId, {Substrate: userSub.address})).to.eq(2n);
+      } else {
+        expect(await helper.nft.getTokenOwner(collectionId, 1)).to.deep.eq({Ethereum: owner});
+        expect(await helper.nft.getTokenOwner(collectionId, 2)).to.deep.eq({Substrate: userSub.address});
+      }
+
+      // allowlisted cross substrate accounts can transfer from Substrate:
+      testCase.mode === 'ft'
+        ? await helper.ft.transfer(userSub, collectionId, {Ethereum: userEth}, 2n)
+        : await helper.collection.transferToken(userSub, collectionId, 2, {Ethereum: userEth});
+      
+      // can removeFromCollectionAllowListCross:
+      await collectionEvm.methods.removeFromCollectionAllowListCross(userCrossSub).send({from: owner});
+      await collectionEvm.methods.removeFromCollectionAllowListCross(userCrossEth).send({from: owner});
+      expect(await helper.collection.allowed(collectionId, {Substrate: userSub.address})).to.be.false;
+      expect(await helper.collection.allowed(collectionId, {Ethereum: userEth})).to.be.false;
+      expect(await collectionEvm.methods.allowlistedCross(userCrossSub).call({from: owner})).to.be.false;
+      expect(await collectionEvm.methods.allowlistedCross(userCrossEth).call({from: owner})).to.be.false;
+  
+      // cannot transfer anymore
+      await collectionEvm.methods.mint(...mintParams).send({from: owner});
+      await expect(collectionEvm.methods.transfer(owner, 2).send({from: userEth})).to.be.rejectedWith(/Transaction has been reverted/);
+    }));
 
-  // Soft-deprecated
-  itEth('Collection allowlist can not be add and remove [eth] address by not owner', async ({helper}) => {
-    const owner = await helper.eth.createAccountWithBalance(donor);
-    const notOwner = await helper.eth.createAccountWithBalance(donor);
-    const user = helper.eth.createAccount();
-    const crossUser = helper.ethCrossAccount.fromAddress(user);
+  [
+    // cross-methods
+    {mode: 'nft' as const, cross: true, requiredPallets: []},
+    {mode: 'rft' as const, cross: true, requiredPallets: [Pallets.ReFungible]},
+    {mode: 'ft' as const, cross: true, requiredPallets: []},
+    // soft-deprecated
+    {mode: 'nft' as const, cross: false, requiredPallets: []},
+    {mode: 'rft' as const, cross: false, requiredPallets: [Pallets.ReFungible]},
+    {mode: 'ft' as const, cross: false, requiredPallets: []},
+  ].map(testCase => 
+    itEth.ifWithPallets(`Non-owner cannot add or remove from collection allowlist ${testCase.cross ? 'cross ' : ''}${testCase.mode}`, testCase.requiredPallets, async ({helper}) => {
+      // Select methods:
+      const addToAllowList = testCase.cross ? 'addToCollectionAllowListCross' : 'addToCollectionAllowList';
+      const removeFromAllowList = testCase.cross ? 'removeFromCollectionAllowListCross' : 'removeFromCollectionAllowList';
 
-    const {collectionAddress} = await helper.eth.createNFTCollection(owner, 'A', 'B', 'C');
-    const collectionEvm = helper.ethNativeContract.collection(collectionAddress, 'nft', owner, true);
+      const owner = await helper.eth.createAccountWithBalance(donor);
+      const notOwner = await helper.eth.createAccountWithBalance(donor);
+      const userSub = donor;
+      const userCrossSub = helper.ethCrossAccount.fromKeyringPair(userSub);
+      const userEth = helper.eth.createAccount();
+      const userCrossEth = helper.ethCrossAccount.fromAddress(userEth);
 
-    expect(await collectionEvm.methods.allowlistedCross(crossUser).call({from: owner})).to.be.false;
-    await expect(collectionEvm.methods.addToCollectionAllowList(user).call({from: notOwner})).to.be.rejectedWith('NoPermission');
-    expect(await collectionEvm.methods.allowlistedCross(crossUser).call({from: owner})).to.be.false;
-    await collectionEvm.methods.addToCollectionAllowList(user).send({from: owner});
-    expect(await collectionEvm.methods.allowlistedCross(crossUser).call({from: owner})).to.be.true;
-    await expect(collectionEvm.methods.removeFromCollectionAllowList(user).call({from: notOwner})).to.be.rejectedWith('NoPermission');
-    expect(await collectionEvm.methods.allowlistedCross(crossUser).call({from: owner})).to.be.true;
-  });
+      const {collectionAddress, collectionId} = await helper.eth.createCollection(testCase.mode, owner, 'A', 'B', 'C');
+      const collectionEvm = helper.ethNativeContract.collection(collectionAddress, testCase.mode, owner, !testCase.cross);
+      
+      expect(await helper.collection.allowed(collectionId, {Substrate: userSub.address})).to.be.false;
+      expect(await helper.collection.allowed(collectionId, {Ethereum: userEth})).to.be.false;
+      
+      // 1. notOwner cannot add to allow list:
+      // 1.1 plain ethereum or cross address:
+      await expect(collectionEvm.methods[addToAllowList](testCase.cross ? userCrossEth : userEth).call({from: notOwner})).to.be.rejectedWith('NoPermission');
+      // 1.2 cross-substrate address:
+      if (testCase.cross)
+        await expect(collectionEvm.methods[addToAllowList](userCrossSub).call({from: notOwner})).to.be.rejectedWith('NoPermission');
 
-  itEth('Collection allowlist can not be add and remove [cross] address by not owner', async ({helper}) => {
-    const owner = await helper.eth.createAccountWithBalance(donor);
-    const notOwner = await helper.eth.createAccountWithBalance(donor);
-    const user = donor;
-    
-    const {collectionAddress, collectionId} = await helper.eth.createNFTCollection(owner, 'A', 'B', 'C');
-    const collectionEvm = helper.ethNativeContract.collection(collectionAddress, 'nft', owner);
-    
-    expect(await helper.collection.allowed(collectionId, {Substrate: user.address})).to.be.false;
-    const userCross = helper.ethCrossAccount.fromKeyringPair(user);
-    await expect(collectionEvm.methods.addToCollectionAllowListCross(userCross).call({from: notOwner})).to.be.rejectedWith('NoPermission');
-    expect(await helper.collection.allowed(collectionId, {Substrate: user.address})).to.be.false;
-    await collectionEvm.methods.addToCollectionAllowListCross(userCross).send({from: owner});
+      // 2. owner can add to allow list:
+      // 2.1 plain ethereum or cross address:
+      await collectionEvm.methods[addToAllowList](testCase.cross ? userCrossEth : userEth).send({from: owner});
+      // 2.2 cross-substrate address:
+      if (testCase.cross) {
+        await collectionEvm.methods[addToAllowList](userCrossSub).send({from: owner});
+        expect(await helper.collection.allowed(collectionId, {Substrate: userSub.address})).to.be.true;
+      }
+      expect(await helper.collection.allowed(collectionId, {Ethereum: userEth})).to.be.true;
     
-    expect(await helper.collection.allowed(collectionId, {Substrate: user.address})).to.be.true;
-    await expect(collectionEvm.methods.removeFromCollectionAllowListCross(userCross).call({from: notOwner})).to.be.rejectedWith('NoPermission');
-    expect(await helper.collection.allowed(collectionId, {Substrate: user.address})).to.be.true;
-  });
+      // 3. notOwner cannot remove from allow list:
+      // 3.1 plain ethereum or cross address:
+      await expect(collectionEvm.methods[removeFromAllowList](testCase.cross ? userCrossEth : userEth).call({from: notOwner})).to.be.rejectedWith('NoPermission');
+      // 3.2 cross-substrate address:
+      if (testCase.cross)
+        await expect(collectionEvm.methods[removeFromAllowList](userCrossSub).call({from: notOwner})).to.be.rejectedWith('NoPermission');
+    }));
 });
modifiedtests/src/eth/reFungibleToken.test.tsdiffbeforeafterboth
--- a/tests/src/eth/reFungibleToken.test.ts
+++ b/tests/src/eth/reFungibleToken.test.ts
@@ -208,151 +208,145 @@
     }
   });
   
-  itEth('Can perform transferFrom()', async ({helper}) => {
-    const owner = await helper.eth.createAccountWithBalance(donor);
-    const spender = await helper.eth.createAccountWithBalance(donor);
-    const receiver = helper.eth.createAccount();
-    const collection = await helper.rft.mintCollection(alice);
-    const {tokenId} = await collection.mintToken(alice, 200n, {Ethereum: owner});
+  [
+    'transferFrom',
+    'transferFromCross',
+  ].map(testCase => 
+    itEth(`Can perform ${testCase}`, async ({helper}) => {
+      const isCross = testCase === 'transferFromCross';
+      const owner = await helper.eth.createAccountWithBalance(donor);
+      const ownerCross = helper.ethCrossAccount.fromAddress(owner);
+      const spender = await helper.eth.createAccountWithBalance(donor);
+      const receiverEth = helper.eth.createAccount();
+      const receiverCrossEth = helper.ethCrossAccount.fromAddress(receiverEth);
+      const [receiverSub] = await helper.arrange.createAccounts([1n], donor);
+      const receiverCrossSub = helper.ethCrossAccount.fromKeyringPair(receiverSub);
+    
+      const collection = await helper.rft.mintCollection(alice);
+      const {tokenId} = await collection.mintToken(alice, 200n, {Ethereum: owner});
 
-    const tokenAddress = helper.ethAddress.fromTokenId(collection.collectionId, tokenId);
-    const contract = helper.ethNativeContract.rftToken(tokenAddress, owner);
+      const tokenAddress = helper.ethAddress.fromTokenId(collection.collectionId, tokenId);
+      const contract = helper.ethNativeContract.rftToken(tokenAddress, owner);
 
-    await contract.methods.approve(spender, 100).send();
+      await contract.methods.approve(spender, 100).send({from: owner});
+    
+      // 1. Can transfer from
+      // 1.1 Plain ethereum or cross address:
+      {
+        const result = await contract.methods[testCase](
+          isCross ? ownerCross : owner,
+          isCross ? receiverCrossEth : receiverEth, 
+          49,
+        ).send({from: spender});
 
-    {
-      const result = await contract.methods.transferFrom(owner, receiver, 49).send({from: spender});
-      let event = result.events.Transfer;
-      expect(event.address).to.be.equal(tokenAddress);
-      expect(event.returnValues.from).to.be.equal(owner);
-      expect(event.returnValues.to).to.be.equal(receiver);
-      expect(event.returnValues.value).to.be.equal('49');
+        // Check events:
+        const transferEvent = result.events.Transfer;
+        expect(transferEvent.address).to.be.equal(tokenAddress);
+        expect(transferEvent.returnValues.from).to.be.equal(owner);
+        expect(transferEvent.returnValues.to).to.be.equal(receiverEth);
+        expect(transferEvent.returnValues.value).to.be.equal('49');
 
-      event = result.events.Approval;
-      expect(event.address).to.be.equal(tokenAddress);
-      expect(event.returnValues.owner).to.be.equal(owner);
-      expect(event.returnValues.spender).to.be.equal(spender);
-      expect(event.returnValues.value).to.be.equal('51');
-    }
+        const approvalEvent = result.events.Approval;
+        expect(approvalEvent.address).to.be.equal(tokenAddress);
+        expect(approvalEvent.returnValues.owner).to.be.equal(owner);
+        expect(approvalEvent.returnValues.spender).to.be.equal(spender);
+        expect(approvalEvent.returnValues.value).to.be.equal('51');
 
-    {
-      const balance = await contract.methods.balanceOf(receiver).call();
-      expect(+balance).to.equal(49);
-    }
+        // Check balances:
+        const receiverBalance = await contract.methods.balanceOf(receiverEth).call();
+        const ownerBalance = await contract.methods.balanceOf(owner).call();
 
-    {
-      const balance = await contract.methods.balanceOf(owner).call();
-      expect(+balance).to.equal(151);
-    }
-  });
-  
-  itEth('Can perform transferFromCross()', async ({helper}) => {
-    const owner = await helper.eth.createAccountWithBalance(donor);
-    const ownerCross = helper.ethCrossAccount.fromAddress(owner);
-    const spender = await helper.eth.createAccountWithBalance(donor);
-    const receiver = helper.eth.createAccount();
-    const receiverSub = (await helper.arrange.createAccounts([1n], donor))[0];
-    const receiverCrossEth = helper.ethCrossAccount.fromAddress(receiver);
-    const receiverCrossSub = helper.ethCrossAccount.fromKeyringPair(receiverSub);
+        expect(+receiverBalance).to.equal(49);
+        expect(+ownerBalance).to.equal(151);
+      }
     
-    const collection = await helper.rft.mintCollection(alice);
-    const {tokenId} = await collection.mintToken(alice, 200n, {Ethereum: owner});
+      // 1.2 Cross substrate address:
+      if (testCase === 'transferFromCross') {
+        const result = await contract.methods.transferFromCross(ownerCross, receiverCrossSub, 51).send({from: spender});
+        // Check events:
+        const transferEvent = result.events.Transfer;
+        expect(transferEvent.address).to.be.equal(tokenAddress);
+        expect(transferEvent.returnValues.from).to.be.equal(owner);
+        expect(transferEvent.returnValues.to).to.be.equal(helper.address.substrateToEth(receiverSub.address));
+        expect(transferEvent.returnValues.value).to.be.equal('51');
 
-    const tokenAddress = helper.ethAddress.fromTokenId(collection.collectionId, tokenId);
-    const contract = helper.ethNativeContract.rftToken(tokenAddress, owner);
+        const approvalEvent = result.events.Approval;
+        expect(approvalEvent.address).to.be.equal(tokenAddress);
+        expect(approvalEvent.returnValues.owner).to.be.equal(owner);
+        expect(approvalEvent.returnValues.spender).to.be.equal(spender);
+        expect(approvalEvent.returnValues.value).to.be.equal('0');
 
-    await contract.methods.approve(spender, 100).send({from: owner});
-    
-    {
-      const result = await contract.methods.transferFromCross(ownerCross, receiverCrossEth, 49).send({from: spender});
-      let event = result.events.Transfer;
-      expect(event.address).to.be.equal(tokenAddress);
-      expect(event.returnValues.from).to.be.equal(owner);
-      expect(event.returnValues.to).to.be.equal(receiver);
-      expect(event.returnValues.value).to.be.equal('49');
+        // Check balances:
+        const receiverBalance = await collection.getTokenBalance(tokenId, {Substrate: receiverSub.address});
+        const ownerBalance = await contract.methods.balanceOf(owner).call();
+        expect(receiverBalance).to.equal(51n);
+        expect(+ownerBalance).to.equal(100);
+      }
+    }));
 
-      event = result.events.Approval;
-      expect(event.address).to.be.equal(tokenAddress);
-      expect(event.returnValues.owner).to.be.equal(owner);
-      expect(event.returnValues.spender).to.be.equal(spender);
-      expect(event.returnValues.value).to.be.equal('51');
-    }
+  [
+    'transfer',
+    'transferCross',
+  ].map(testCase => 
+    itEth(`Can perform ${testCase}()`, async ({helper}) => {
+      const isCross = testCase === 'transferCross';
+      const owner = await helper.eth.createAccountWithBalance(donor);
+      const receiverEth = helper.eth.createAccount();
+      const receiverCrossEth = helper.ethCrossAccount.fromAddress(receiverEth);
+      const [receiverSub] = await helper.arrange.createAccounts([1n], donor);
+      const receiverCrossSub = helper.ethCrossAccount.fromKeyringPair(receiverSub);
+      const collection = await helper.rft.mintCollection(alice);
+      const {tokenId} = await collection.mintToken(alice, 200n, {Ethereum: owner});
 
-    {
-      const balance = await contract.methods.balanceOf(receiver).call();
-      expect(+balance).to.equal(49);
-    }
+      const tokenAddress = helper.ethAddress.fromTokenId(collection.collectionId, tokenId);
+      const contract = helper.ethNativeContract.rftToken(tokenAddress, owner);
 
-    {
-      const balance = await contract.methods.balanceOf(owner).call();
-      expect(+balance).to.equal(151);
-    }
+      // 1. Can transfer to plain ethereum or cross-ethereum account:
+      {
+        const result = await contract.methods[testCase](isCross ? receiverCrossEth : receiverEth, 50).send({from: owner});
+        // Check events
+        const transferEvent = result.events.Transfer;
+        expect(transferEvent.address).to.be.equal(tokenAddress);
+        expect(transferEvent.returnValues.from).to.be.equal(owner);
+        expect(transferEvent.returnValues.to).to.be.equal(receiverEth);
+        expect(transferEvent.returnValues.value).to.be.equal('50');
+        // Check balances:
+        const ownerBalance = await contract.methods.balanceOf(owner).call();
+        const receiverBalance = await contract.methods.balanceOf(receiverEth).call();
+        expect(+ownerBalance).to.equal(150);
+        expect(+receiverBalance).to.equal(50);
+      }
     
-    {
-      const result = await contract.methods.transferFromCross(ownerCross, receiverCrossSub, 51).send({from: spender});
-      let event = result.events.Transfer;
-      expect(event.address).to.be.equal(tokenAddress);
-      expect(event.returnValues.from).to.be.equal(owner);
-      expect(event.returnValues.to).to.be.equal(helper.address.substrateToEth(receiverSub.address));
-      expect(event.returnValues.value).to.be.equal('51');
-
-      event = result.events.Approval;
-      expect(event.address).to.be.equal(tokenAddress);
-      expect(event.returnValues.owner).to.be.equal(owner);
-      expect(event.returnValues.spender).to.be.equal(spender);
-      expect(event.returnValues.value).to.be.equal('0');
-    }
-
-    {
-      const balance = await collection.getTokenBalance(tokenId, {Substrate: receiverSub.address});
-      expect(balance).to.equal(51n);
-    }
-
-    {
-      const balance = await contract.methods.balanceOf(owner).call();
-      expect(+balance).to.equal(100);
-    }
-  });
-
-  itEth('Can perform transfer()', async ({helper}) => {
-    const owner = await helper.eth.createAccountWithBalance(donor);
-    const receiver = helper.eth.createAccount();
-    const collection = await helper.rft.mintCollection(alice);
-    const {tokenId} = await collection.mintToken(alice, 200n, {Ethereum: owner});
+      // 2. Can transfer to cross-substrate account: 
+      if(isCross) {
+        const result = await contract.methods.transferCross(receiverCrossSub, 50).send({from: owner});
+        // Check events:
+        const event = result.events.Transfer;
+        expect(event.address).to.be.equal(tokenAddress);
+        expect(event.returnValues.from).to.be.equal(owner);
+        expect(event.returnValues.to).to.be.equal(helper.address.substrateToEth(receiverSub.address));
+        expect(event.returnValues.value).to.be.equal('50');
+        // Check balances:
+        const ownerBalance = await contract.methods.balanceOf(owner).call();
+        const receiverBalance = await collection.getTokenBalance(tokenId, {Substrate: receiverSub.address});
+        expect(+ownerBalance).to.equal(100);
+        expect(receiverBalance).to.equal(50n);
+      }
+    }));
 
-    const tokenAddress = helper.ethAddress.fromTokenId(collection.collectionId, tokenId);
-    const contract = helper.ethNativeContract.rftToken(tokenAddress, owner);
-
-    {
-      const result = await contract.methods.transfer(receiver, 50).send({from: owner});
-      const event = result.events.Transfer;
-      expect(event.address).to.be.equal(tokenAddress);
-      expect(event.returnValues.from).to.be.equal(owner);
-      expect(event.returnValues.to).to.be.equal(receiver);
-      expect(event.returnValues.value).to.be.equal('50');
-    }
-
-    {
-      const balance = await contract.methods.balanceOf(owner).call();
-      expect(+balance).to.equal(150);
-    }
-
-    {
-      const balance = await contract.methods.balanceOf(receiver).call();
-      expect(+balance).to.equal(50);
-    }
-  });
-  
   [
     'transfer',
-    // 'transferCross', // TODO
+    'transferCross',
   ].map(testCase => 
     itEth(`Cannot ${testCase}() non-owned token`, async ({helper}) => {
+      const isCross = testCase === 'transferCross';
       const owner = await helper.eth.createAccountWithBalance(donor);
-      const receiver = await helper.eth.createAccountWithBalance(donor);
+      const ownerCross = helper.ethCrossAccount.fromAddress(owner);
+      const receiverEth = await helper.eth.createAccountWithBalance(donor);
+      const receiverCrossEth = helper.ethCrossAccount.fromAddress(receiverEth);
       const collection = await helper.rft.mintCollection(alice);
       const rftOwner = await collection.mintToken(alice, 10n, {Ethereum: owner});
-      const rftReceiver = await collection.mintToken(alice, 10n, {Ethereum: receiver});
+      const rftReceiver = await collection.mintToken(alice, 10n, {Ethereum: receiverEth});
       const tokenIdNonExist = 9999999;
   
       const tokenAddress1 = helper.ethAddress.fromTokenId(collection.collectionId, rftOwner.tokenId);
@@ -363,76 +357,26 @@
       const tokenEvmNonExist = helper.ethNativeContract.rftToken(tokenAddressNonExist, owner);
       
       // 1. Can transfer zero amount (EIP-20):
-      await tokenEvmOwner.methods[testCase](receiver, 0).send({from: owner});
+      await tokenEvmOwner.methods[testCase](isCross ? receiverCrossEth : receiverEth, 0).send({from: owner});
       // 2. Cannot transfer non-owned token:
-      await expect(tokenEvmReceiver.methods[testCase](owner, 0).send({from: owner})).to.be.rejected;
-      await expect(tokenEvmReceiver.methods[testCase](owner, 5).send({from: owner})).to.be.rejected;
+      await expect(tokenEvmReceiver.methods[testCase](isCross ? ownerCross : owner, 0).send({from: owner})).to.be.rejected;
+      await expect(tokenEvmReceiver.methods[testCase](isCross ? ownerCross : owner, 5).send({from: owner})).to.be.rejected;
       // 3. Cannot transfer non-existing token:
-      await expect(tokenEvmNonExist.methods[testCase](owner, 0).send({from: owner})).to.be.rejected;
-      await expect(tokenEvmNonExist.methods[testCase](owner, 5).send({from: owner})).to.be.rejected;
+      await expect(tokenEvmNonExist.methods[testCase](isCross ? ownerCross : owner, 0).send({from: owner})).to.be.rejected;
+      await expect(tokenEvmNonExist.methods[testCase](isCross ? ownerCross : owner, 5).send({from: owner})).to.be.rejected;
 
       // 4. Storage is not corrupted:
       expect(await rftOwner.getTop10Owners()).to.deep.eq([{Ethereum: owner.toLowerCase()}]);
-      expect(await rftReceiver.getTop10Owners()).to.deep.eq([{Ethereum: receiver.toLowerCase()}]);
-      expect(await helper.rft.getTokenTop10Owners(collection.collectionId, tokenIdNonExist)).to.deep.eq([]); // TODO
+      expect(await rftReceiver.getTop10Owners()).to.deep.eq([{Ethereum: receiverEth.toLowerCase()}]);
+      expect(await helper.rft.getTokenTop10Owners(collection.collectionId, tokenIdNonExist)).to.deep.eq([]);
 
       // 4.1 Tokens can be transferred:
-      await tokenEvmOwner.methods[testCase](receiver, 10).send({from: owner});
-      await tokenEvmReceiver.methods[testCase](owner, 10).send({from: receiver});
-      expect(await rftOwner.getTop10Owners()).to.deep.eq([{Ethereum: receiver.toLowerCase()}]);
+      await tokenEvmOwner.methods[testCase](isCross ? receiverCrossEth : receiverEth, 10).send({from: owner});
+      await tokenEvmReceiver.methods[testCase](isCross ? ownerCross : owner, 10).send({from: receiverEth});
+      expect(await rftOwner.getTop10Owners()).to.deep.eq([{Ethereum: receiverEth.toLowerCase()}]);
       expect(await rftReceiver.getTop10Owners()).to.deep.eq([{Ethereum: owner.toLowerCase()}]);
     }));
-
-  itEth('Can perform transferCross()', async ({helper}) => {
-    const owner = await helper.eth.createAccountWithBalance(donor);
-    const receiver = helper.eth.createAccount();
-    const receiverSub = (await helper.arrange.createAccounts([1n], donor))[0];
-    const receiverCrossEth = helper.ethCrossAccount.fromAddress(receiver);
-    const receiverCrossSub = helper.ethCrossAccount.fromKeyringPair(receiverSub);
-    const collection = await helper.rft.mintCollection(alice);
-    const {tokenId} = await collection.mintToken(alice, 200n, {Ethereum: owner});
-
-    const tokenAddress = helper.ethAddress.fromTokenId(collection.collectionId, tokenId);
-    const contract = helper.ethNativeContract.rftToken(tokenAddress, owner);
-
-    {
-      const result = await contract.methods.transferCross(receiverCrossEth, 50).send({from: owner});
-      const event = result.events.Transfer;
-      expect(event.address).to.be.equal(tokenAddress);
-      expect(event.returnValues.from).to.be.equal(owner);
-      expect(event.returnValues.to).to.be.equal(receiver);
-      expect(event.returnValues.value).to.be.equal('50');
-    }
 
-    {
-      const balance = await contract.methods.balanceOf(owner).call();
-      expect(+balance).to.equal(150);
-    }
-
-    {
-      const balance = await contract.methods.balanceOf(receiver).call();
-      expect(+balance).to.equal(50);
-    }
-    
-    {
-      const result = await contract.methods.transferCross(receiverCrossSub, 50).send({from: owner});
-      const event = result.events.Transfer;
-      expect(event.address).to.be.equal(tokenAddress);
-      expect(event.returnValues.from).to.be.equal(owner);
-      expect(event.returnValues.to).to.be.equal(helper.address.substrateToEth(receiverSub.address));
-      expect(event.returnValues.value).to.be.equal('50');
-    }
-
-    {
-      const balance = await contract.methods.balanceOf(owner).call();
-      expect(+balance).to.equal(100);
-    }
-
-    {
-      const balance = await collection.getTokenBalance(tokenId, {Substrate: receiverSub.address});
-      expect(balance).to.equal(50n);
-    }
-  });
   itEth('Can perform repartition()', async ({helper}) => {
     const owner = await helper.eth.createAccountWithBalance(donor);
     const receiver = await helper.eth.createAccountWithBalance(donor);
deletedtests/src/rmrk/acceptNft.seqtest.tsdiffbeforeafterboth
--- a/tests/src/rmrk/acceptNft.seqtest.ts
+++ /dev/null
@@ -1,107 +0,0 @@
-import {expect} from 'chai';
-import {getApiConnection} from '../substrate/substrate-api';
-import {
-  createCollection,
-  mintNft,
-  sendNft,
-  acceptNft,
-} from './util/tx';
-import {NftIdTuple} from './util/fetch';
-import {isNftChildOfAnother, expectTxFailure, requirePallets, Pallets} from './util/helpers';
-
-describe('integration test: accept NFT', () => {
-  let api: any;
-  before(async function() {
-    api = await getApiConnection();
-    await requirePallets(this, [Pallets.RmrkCore]);
-  });
-  
-  
-  const alice = '//Alice';
-  const bob = '//Bob';
-  
-  const createTestCollection = async (issuerUri: string) => {
-    return await createCollection(
-      api,
-      issuerUri,
-      'accept-metadata',
-      null,
-      'acpt',
-    );
-  };
-
-  it('accept NFT', async () => {
-    const ownerAlice = alice;
-    const ownerBob = bob;
-
-    const aliceCollectionId = await createTestCollection(alice);
-    const bobCollectionId = await createTestCollection(bob);
-
-    const parentNftId = await mintNft(api, alice, ownerAlice, aliceCollectionId, 'parent-nft-metadata');
-    const childNftId = await mintNft(api, bob, ownerBob, bobCollectionId, 'child-nft-metadata');
-
-    const newOwnerNFT: NftIdTuple = [aliceCollectionId, parentNftId];
-
-    await sendNft(api, 'pending', ownerBob, bobCollectionId, childNftId, newOwnerNFT);
-    await acceptNft(api, alice, bobCollectionId, childNftId, newOwnerNFT);
-
-    const isChild = await isNftChildOfAnother(api, bobCollectionId, childNftId, newOwnerNFT);
-    expect(isChild).to.be.true;
-  });
-
-  it('[negative] unable to accept NFT by a not-an-owner', async () => {
-    const ownerAlice = alice;
-    const ownerBob = bob;
-
-    const aliceCollectionId = await createTestCollection(alice);
-    const bobCollectionId = await createTestCollection(bob);
-
-    const parentNftId = await mintNft(api, alice, ownerAlice, aliceCollectionId, 'parent-nft-metadata');
-    const childNftId = await mintNft(api, bob, ownerBob, bobCollectionId, 'child-nft-metadata');
-
-    const newOwnerNFT: NftIdTuple = [aliceCollectionId, parentNftId];
-
-    await sendNft(api, 'pending', ownerBob, bobCollectionId, childNftId, newOwnerNFT);
-    const tx = acceptNft(api, bob, bobCollectionId, childNftId, newOwnerNFT);
-
-    await expectTxFailure(/rmrkCore\.NoPermission/, tx);
-  });
-
-  it('[negative] unable to accept non-existing NFT', async () => {
-    const collectionId = 0;
-    const maxNftId = 0xFFFFFFFF;
-
-    const owner = alice;
-    const aliceCollectionId = await createTestCollection(alice);
-
-    const parentNftId = await mintNft(api, alice, owner, aliceCollectionId, 'parent-nft-metadata');
-
-    const newOwnerNFT: NftIdTuple = [aliceCollectionId, parentNftId];
-
-    const tx = acceptNft(api, alice, collectionId, maxNftId, newOwnerNFT);
-
-    await expectTxFailure(/rmrkCore\.NoAvailableNftId/, tx);
-  });
-
-  it('[negative] unable to accept NFT which is not sent', async () => {
-    const ownerAlice = alice;
-    const ownerBob = bob;
-
-    const aliceCollectionId = await createTestCollection(alice);
-    const bobCollectionId = await createTestCollection(bob);
-
-    const parentNftId = await mintNft(api, alice, ownerAlice, aliceCollectionId, 'parent-nft-metadata');
-    const childNftId = await mintNft(api, bob, ownerBob, bobCollectionId, 'child-nft-metadata');
-
-    const newOwnerNFT: NftIdTuple = [aliceCollectionId, parentNftId];
-
-    const tx = acceptNft(api, alice, bobCollectionId, childNftId, newOwnerNFT);
-
-    await expectTxFailure(/rmrkCore\.NoPermission/, tx);
-
-    const isChild = await isNftChildOfAnother(api, bobCollectionId, childNftId, newOwnerNFT);
-    expect(isChild).to.be.false;
-  });
-
-  after(async() => { await api.disconnect(); });
-});
deletedtests/src/rmrk/addResource.seqtest.tsdiffbeforeafterboth
--- a/tests/src/rmrk/addResource.seqtest.ts
+++ /dev/null
@@ -1,435 +0,0 @@
-import {expect} from 'chai';
-import {getApiConnection} from '../substrate/substrate-api';
-import {NftIdTuple} from './util/fetch';
-import {expectTxFailure, getResourceById, requirePallets, Pallets} from './util/helpers';
-import {
-  addNftBasicResource,
-  acceptNftResource,
-  createCollection,
-  mintNft,
-  sendNft,
-  addNftSlotResource,
-  addNftComposableResource,
-} from './util/tx';
-import {RmrkTraitsResourceResourceInfo as ResourceInfo} from '@polkadot/types/lookup';
-
-describe('integration test: add NFT resource', () => {
-  const alice = '//Alice';
-  const bob = '//Bob';
-  const src = 'test-res-src';
-  const metadata = 'test-res-metadata';
-  const license = 'test-res-license';
-  const thumb = 'test-res-thumb';
-
-  const nonexistentId = 99999;
-
-  let api: any;
-  before(async function() {
-    api = await getApiConnection();
-    await requirePallets(this, [Pallets.RmrkCore]);
-  });
-
-  it('add resource', async () => {
-    const collectionIdAlice = await createCollection(
-      api,
-      alice,
-      'test-metadata',
-      null,
-      'test-symbol',
-    );
-
-    const nftAlice = await mintNft(
-      api,
-      alice,
-      alice,
-      collectionIdAlice,
-      'nft-metadata',
-    );
-
-    await addNftBasicResource(
-      api,
-      alice,
-      'added',
-      collectionIdAlice,
-      nftAlice,
-      src,
-      metadata,
-      license,
-      thumb,
-    );
-  });
-
-  it('add a resource to the nested NFT', async () => {
-    const collectionIdAlice = await createCollection(
-      api,
-      alice,
-      'test-metadata',
-      null,
-      'test-symbol',
-    );
-
-    const parentNftId = await mintNft(api, alice, alice, collectionIdAlice, 'parent-nft-metadata');
-    const childNftId = await mintNft(api, alice, alice, collectionIdAlice, 'child-nft-metadata');
-
-    const newOwnerNFT: NftIdTuple = [collectionIdAlice, parentNftId];
-
-    await sendNft(api, 'sent', alice, collectionIdAlice, childNftId, newOwnerNFT);
-
-    await addNftBasicResource(
-      api,
-      alice,
-      'added',
-      collectionIdAlice,
-      childNftId,
-      src,
-      metadata,
-      license,
-      thumb,
-    );
-  });
-
-  it('add multiple resources', async () => {
-    const collectionIdAlice = await createCollection(
-      api,
-      alice,
-      'test-metadata',
-      null,
-      'test-symbol',
-    );
-
-    const nftAlice = await mintNft(
-      api,
-      alice,
-      alice,
-      collectionIdAlice,
-      'nft-metadata',
-    );
-
-    const baseId = 42;
-    const slotId = 10;
-    const parts = [0, 5, 2];
-
-    const resourcesInfo = [];
-    const resourceNum = 4;
-
-    const checkResource = (resource: ResourceInfo, resType: string, expectedId: number, expected: {
-      src: string,
-      metadata: string,
-      license: string,
-      thumb: string
-    }) => {
-
-      // FIXME A workaround. It seems it is a PolkadotJS bug.
-      // All of the following are `false`.
-      //
-      // console.log('>>> basic:', resource.resource.isBasic);
-      // console.log('>>> composable:', resource.resource.isComposable);
-      // console.log('>>> slot:', resource.resource.isSlot);
-      const resourceJson = (resource.resource.toHuman() as any)[resType];
-
-      expect(resource.id.toNumber(), 'Error: Invalid resource Id')
-        .to.be.eq(expectedId);
-
-      expect(resourceJson.src, 'Error: Invalid resource src')
-        .to.be.eq(expected.src);
-      expect(resourceJson.metadata, 'Error: Invalid resource metadata')
-        .to.be.eq(expected.metadata);
-      expect(resourceJson.license, 'Error: Invalid resource license')
-        .to.be.eq(expected.license);
-      expect(resourceJson.thumb, 'Error: Invalid resource thumb')
-        .to.be.eq(expected.thumb);
-    };
-
-    for (let i = 0; i < resourceNum; i++) {
-      resourcesInfo.push({
-        src: src + 'r-' + i,
-        metadata: metadata + 'r-' + i,
-        license: license + 'r-' + i,
-        thumb: thumb + 'r-' + i,
-      });
-    }
-
-    const firstBasicResourceId = await addNftBasicResource(
-      api,
-      alice,
-      'added',
-      collectionIdAlice,
-      nftAlice,
-      resourcesInfo[0].src,
-      resourcesInfo[0].metadata,
-      resourcesInfo[0].license,
-      resourcesInfo[0].thumb,
-    );
-
-    const secondBasicResourceId = await addNftBasicResource(
-      api,
-      alice,
-      'added',
-      collectionIdAlice,
-      nftAlice,
-      resourcesInfo[1].src,
-      resourcesInfo[1].metadata,
-      resourcesInfo[1].license,
-      resourcesInfo[1].thumb,
-    );
-
-    const composableResourceId = await addNftComposableResource(
-      api,
-      alice,
-      'added',
-      collectionIdAlice,
-      nftAlice,
-      parts,
-      baseId,
-      resourcesInfo[2].src,
-      resourcesInfo[2].metadata,
-      resourcesInfo[2].license,
-      resourcesInfo[2].thumb,
-    );
-
-    const slotResourceId = await addNftSlotResource(
-      api,
-      alice,
-      'added',
-      collectionIdAlice,
-      nftAlice,
-      baseId,
-      slotId,
-      resourcesInfo[3].src,
-      resourcesInfo[3].metadata,
-      resourcesInfo[3].license,
-      resourcesInfo[3].thumb,
-    );
-
-    const firstResource = await getResourceById(api, collectionIdAlice, nftAlice, firstBasicResourceId);
-    await checkResource(firstResource, 'Basic', firstBasicResourceId, resourcesInfo[0]);
-
-    const secondResource = await getResourceById(api, collectionIdAlice, nftAlice, secondBasicResourceId);
-    await checkResource(secondResource, 'Basic', secondBasicResourceId, resourcesInfo[1]);
-
-    const composableResource = await getResourceById(api, collectionIdAlice, nftAlice, composableResourceId);
-    await checkResource(composableResource, 'Composable', composableResourceId, resourcesInfo[2]);
-
-    const slotResource = await getResourceById(api, collectionIdAlice, nftAlice, slotResourceId);
-    await checkResource(slotResource, 'Slot', slotResourceId, resourcesInfo[3]);
-  });
-
-  it('[negative]: unable to add a resource to the non-existing NFT', async () => {
-    const collectionIdAlice = await createCollection(
-      api,
-      alice,
-      'test-metadata',
-      null,
-      'test-symbol',
-    );
-
-    const tx = addNftBasicResource(
-      api,
-      alice,
-      'added',
-      collectionIdAlice,
-      nonexistentId,
-      src,
-      metadata,
-      license,
-      thumb,
-    );
-  
-    await expectTxFailure(/rmrkCore\.NoAvailableNftId/, tx);
-  });
-
-  it('[negative]: unable to add a resource by a not-an-owner user', async () => {
-    const collectionIdAlice = await createCollection(
-      api,
-      alice,
-      'test-metadata',
-      null,
-      'test-symbol',
-    );
-
-    const nftAlice = await mintNft(
-      api,
-      alice,
-      alice,
-      collectionIdAlice,
-      'nft-metadata',
-    );
-
-    const tx = addNftBasicResource(
-      api,
-      bob,
-      'added',
-      collectionIdAlice,
-      nftAlice,
-      src,
-      metadata,
-      license,
-      thumb,
-    );
-  
-    await expectTxFailure(/rmrkCore\.NoPermission/, tx);
-  });
-
-  it('[negative]: unable to add a resource to the nested NFT if it isnt root owned by the caller', async () => {
-    const collectionIdAlice = await createCollection(
-      api,
-      alice,
-      'test-metadata',
-      null,
-      'test-symbol',
-    );
-
-    const parentNftId = await mintNft(api, alice, alice, collectionIdAlice, 'parent-nft-metadata');
-    const childNftId = await mintNft(api, alice, alice, collectionIdAlice, 'child-nft-metadata');
-
-    const newOwnerNFT: NftIdTuple = [collectionIdAlice, parentNftId];
-
-    await sendNft(api, 'sent', alice, collectionIdAlice, childNftId, newOwnerNFT);
-
-    const tx = addNftBasicResource(
-      api,
-      bob,
-      'added',
-      collectionIdAlice,
-      childNftId,
-      src,
-      metadata,
-      license,
-      thumb,
-    );
-    
-    await expectTxFailure(/rmrkCore\.NoPermission/, tx);
-  });
-
-  it('accept resource', async () => {
-    const collectionIdBob = await createCollection(
-      api,
-      bob,
-      'test-metadata',
-      null,
-      'test-symbol',
-    );
-
-    const nftAlice = await mintNft(
-      api,
-      bob,
-      alice,
-      collectionIdBob,
-      'nft-metadata',
-    );
-
-    const resourceId = await addNftBasicResource(
-      api,
-      bob,
-      'pending',
-      collectionIdBob,
-      nftAlice,
-      src,
-      metadata,
-      license,
-      thumb,
-    );
-
-    await acceptNftResource(api, alice, collectionIdBob, nftAlice, resourceId);
-  });
-
-  it('[negative]: unable to accept a non-existing resource', async () => {
-    const collectionIdBob = await createCollection(
-      api,
-      bob,
-      'test-metadata',
-      null,
-      'test-symbol',
-    );
-
-    const nftAlice = await mintNft(
-      api,
-      bob,
-      alice,
-      collectionIdBob,
-      'nft-metadata',
-    );
-
-    const tx = acceptNftResource(api, alice, collectionIdBob, nftAlice, nonexistentId);
-    await expectTxFailure(/rmrkCore\.ResourceDoesntExist/, tx);
-  });
-
-  it('[negative]: unable to accept a resource by a not-an-NFT-owner user', async () => {
-    const collectionIdBob = await createCollection(
-      api,
-      bob,
-      'test-metadata',
-      null,
-      'test-symbol',
-    );
-
-    const nftAlice = await mintNft(
-      api,
-      bob,
-      alice,
-      collectionIdBob,
-      'nft-metadata',
-    );
-
-    const resourceId = await addNftBasicResource(
-      api,
-      bob,
-      'pending',
-      collectionIdBob,
-      nftAlice,
-      src,
-      metadata,
-      license,
-      thumb,
-    );
-
-    const tx = acceptNftResource(api, bob, collectionIdBob, nftAlice, resourceId);
-
-    await expectTxFailure(/rmrkCore\.NoPermission/, tx);
-  });
-
-  it('[negative]: unable to accept a resource to a non-target NFT', async () => {
-    const collectionIdBob = await createCollection(
-      api,
-      bob,
-      'test-metadata',
-      null,
-      'test-symbol',
-    );
-
-    const nftAlice = await mintNft(
-      api,
-      bob,
-      alice,
-      collectionIdBob,
-      'nft-metadata',
-    );
-
-    const wrongNft = await mintNft(
-      api,
-      bob,
-      alice,
-      collectionIdBob,
-      'nft-metadata',
-    );
-    
-    const resourceId = await addNftBasicResource(
-      api,
-      bob,
-      'pending',
-      collectionIdBob,
-      nftAlice,
-      src,
-      metadata,
-      license,
-      thumb,
-    );
-
-    const tx = acceptNftResource(api, bob, collectionIdBob, wrongNft, resourceId);
-
-    await expectTxFailure(/rmrkCore\.ResourceDoesntExist/, tx);
-  });
-
-
-  after(async() => { await api.disconnect(); });
-});
deletedtests/src/rmrk/addTheme.seqtest.tsdiffbeforeafterboth
--- a/tests/src/rmrk/addTheme.seqtest.ts
+++ /dev/null
@@ -1,129 +0,0 @@
-import {expect} from 'chai';
-import {getApiConnection} from '../substrate/substrate-api';
-import {createBase, addTheme} from './util/tx';
-import {expectTxFailure, requirePallets, Pallets} from './util/helpers';
-import {getThemeNames} from './util/fetch';
-
-describe('integration test: add Theme to Base', () => {
-  let api: any;
-  before(async function() {
-    api = await getApiConnection();
-    await requirePallets(this, [Pallets.RmrkEquip]);
-  });
-
-  const alice = '//Alice';
-  const bob = '//Bob';
-
-  it('add default theme', async () => {
-    const baseId = await createBase(api, alice, 'default-themed-base', 'DTBase', []);
-    await addTheme(api, alice, baseId, {
-      name: 'default',
-      properties: [
-        {
-          key: 'some-key',
-          value: 'some-key-value',
-        },
-        {
-          key: 'another-key',
-          value: 'another-key-value',
-        },
-      ],
-    });
-  });
-
-  it('add default theme and a custom one', async () => {
-    const baseId = await createBase(api, alice, '2-themed-base', '2TBase', []);
-    await addTheme(api, alice, baseId, {
-      name: 'default',
-      properties: [
-        {
-          key: 'default-key',
-          value: 'default-key-value',
-        },
-      ],
-    });
-    await addTheme(api, alice, baseId, {
-      name: 'custom-theme',
-      properties: [
-        {
-          key: 'custom-key-0',
-          value: 'custom-key-value-0',
-        },
-        {
-          key: 'custom-key-1',
-          value: 'custom-key-value-1',
-        },
-      ],
-    });
-  });
-
-  it('fetch filtered theme keys', async () => {
-    const baseId = await createBase(api, alice, '2-themed-base', '2TBase', []);
-    await addTheme(api, alice, baseId, {
-      name: 'default',
-      properties: [
-        {
-          key: 'first-key',
-          value: 'first-key-value',
-        },
-        {
-          key: 'second-key',
-          value: 'second-key-value',
-        },
-      ],
-    }, ['second-key']);
-  });
-
-  it('fetch theme names', async() => {
-    const baseId = await createBase(api, alice, '3-themed-base', '3TBase', []);
-    const names = [
-      'default',
-      'first-theme',
-      'second-theme',
-    ];
-
-    for (let i = 0; i < names.length; i++) {
-      await addTheme(api, alice, baseId, {name: names[i], properties: [{key: 'dummy', value: 'dummy'}]});
-    }
-
-    const fetchedNames = await getThemeNames(api, baseId);
-
-    for (let i = 0; i < names.length; i++) {
-      const isFound = fetchedNames.find((name) => name === names[i]) !== undefined;
-
-      expect(isFound, 'Error: invalid theme names').to.be.true;
-    }
-  });
-
-  it('[negative] unable to add theme to non-existing base', async () => {
-    const maxBaseId = 0xFFFFFFFF;
-    const tx = addTheme(api, alice, maxBaseId, {
-      name: 'default',
-      properties: [],
-    });
-
-    await expectTxFailure(/rmrkEquip\.BaseDoesntExist/, tx);
-  });
-
-  it('[negative] unable to add custom theme if no default theme', async () => {
-    const baseId = await createBase(api, alice, 'no-default-themed-base', 'NDTBase', []);
-    const tx = addTheme(api, alice, baseId, {
-      name: 'custom-theme',
-      properties: [],
-    });
-
-    await expectTxFailure(/rmrkEquip\.NeedsDefaultThemeFirst/, tx);
-  });
-
-  it('[negative] unable to add theme by a not-an-owner', async () => {
-    const baseId = await createBase(api, alice, 'no-default-themed-base', 'NDTBase', []);
-    const tx = addTheme(api, bob, baseId, {
-      name: 'default',
-      properties: [],
-    });
-
-    await expectTxFailure(/rmrkEquip\.PermissionError/, tx);
-  });
-
-  after(async() => { await api.disconnect(); });
-});
deletedtests/src/rmrk/burnNft.seqtest.tsdiffbeforeafterboth
--- a/tests/src/rmrk/burnNft.seqtest.ts
+++ /dev/null
@@ -1,170 +0,0 @@
-import {getApiConnection} from '../substrate/substrate-api';
-import {expectTxFailure, requirePallets, Pallets} from './util/helpers';
-import {NftIdTuple, getChildren} from './util/fetch';
-import {burnNft, createCollection, sendNft, mintNft} from './util/tx';
-
-import chai from 'chai';
-import chaiAsPromised from 'chai-as-promised';
-
-chai.use(chaiAsPromised);
-const expect = chai.expect;
-
-describe('integration test: burn nft', () => {
-  const alice = '//Alice';
-  const bob = '//Bob';
-
-  let api: any;
-  before(async function() {
-    api = await getApiConnection();
-    await requirePallets(this, [Pallets.RmrkCore]);
-  });
-
-
-  it('burn nft', async () => {
-    await createCollection(
-      api,
-      alice,
-      'test-metadata',
-      null,
-      'test-symbol',
-    ).then(async (collectionId) => {
-      const nftId = await mintNft(
-        api,
-        alice,
-        alice,
-        collectionId,
-        'nft-metadata',
-      );
-      await burnNft(api, alice, collectionId, nftId);
-    });
-  });
-
-  it('burn nft with children', async () => {
-    const collectionId = await createCollection(
-      api,
-      alice,
-      'test-metadata',
-      null,
-      'test-symbol',
-    );
-
-    const parentNftId = await mintNft(
-      api,
-      alice,
-      alice,
-      collectionId,
-      'nft-metadata',
-    );
-
-    const childNftId = await mintNft(
-      api,
-      alice,
-      alice,
-      collectionId,
-      'nft-metadata',
-    );
-
-    const newOwnerNFT: NftIdTuple = [collectionId, parentNftId];
-
-    await sendNft(api, 'sent', alice, collectionId, childNftId, newOwnerNFT);
-
-    const childrenBefore = await getChildren(api, collectionId, parentNftId);
-    expect(childrenBefore.length === 1, 'Error: parent NFT should have children')
-      .to.be.true;
-
-    const child = childrenBefore[0];
-    expect(child.collectionId.eq(collectionId), 'Error: invalid child collection Id')
-      .to.be.true;
-
-    expect(child.nftId.eq(childNftId), 'Error: invalid child NFT Id')
-      .to.be.true;
-
-    await burnNft(api, alice, collectionId, parentNftId);
-
-    const childrenAfter = await getChildren(api, collectionId, parentNftId);
-
-    expect(childrenAfter.length === 0, 'Error: children should be burned').to.be.true;
-  });
-
-  it('burn child nft', async () => {
-    const collectionId = await createCollection(
-      api,
-      alice,
-      'test-metadata',
-      null,
-      'test-symbol',
-    );
-
-    const parentNftId = await mintNft(
-      api,
-      alice,
-      alice,
-      collectionId,
-      'nft-metadata',
-    );
-
-    const childNftId = await mintNft(
-      api,
-      alice,
-      alice,
-      collectionId,
-      'nft-metadata',
-    );
-
-    const newOwnerNFT: NftIdTuple = [collectionId, parentNftId];
-
-    await sendNft(api, 'sent', alice, collectionId, childNftId, newOwnerNFT);
-
-    const childrenBefore = await getChildren(api, collectionId, parentNftId);
-    expect(childrenBefore.length === 1, 'Error: parent NFT should have children')
-      .to.be.true;
-
-    const child = childrenBefore[0];
-    expect(child.collectionId.eq(collectionId), 'Error: invalid child collection Id')
-      .to.be.true;
-
-    expect(child.nftId.eq(childNftId), 'Error: invalid child NFT Id')
-      .to.be.true;
-
-    await burnNft(api, alice, collectionId, childNftId);
-
-    const childrenAfter = await getChildren(api, collectionId, parentNftId);
-
-    expect(childrenAfter.length === 0, 'Error: children should be burned').to.be.true;
-  });
-
-  it('[negative] burn non-existing NFT', async () => {
-    await createCollection(
-      api,
-      alice,
-      'test-metadata',
-      null,
-      'test-symbol',
-    ).then(async (collectionId) => {
-      const tx = burnNft(api, alice, collectionId, 99999);
-      await expectTxFailure(/rmrkCore\.NoAvailableNftId/, tx);
-    });
-  });
-
-  it('[negative] burn not an owner NFT user', async () => {
-    await createCollection(
-      api,
-      alice,
-      'test-metadata',
-      null,
-      'test-symbol',
-    ).then(async (collectionId) => {
-      const nftId = await mintNft(
-        api,
-        alice,
-        alice,
-        collectionId,
-        'nft-metadata',
-      );
-      const tx = burnNft(api, bob, collectionId, nftId);
-      await expectTxFailure(/rmrkCore\.NoPermission/, tx);
-    });
-  });
-
-  after(async() => { await api.disconnect(); });
-});
deletedtests/src/rmrk/changeCollectionIssuer.seqtest.tsdiffbeforeafterboth
--- a/tests/src/rmrk/changeCollectionIssuer.seqtest.ts
+++ /dev/null
@@ -1,53 +0,0 @@
-import {getApiConnection} from '../substrate/substrate-api';
-import {expectTxFailure, requirePallets, Pallets} from './util/helpers';
-import {
-  changeIssuer,
-  createCollection,
-} from './util/tx';
-
-describe('integration test: collection issuer', () => {
-  const alice = '//Alice';
-  const bob = '//Bob';
-
-  let api: any;
-  before(async function() {
-    api = await getApiConnection();
-    await requirePallets(this, [Pallets.RmrkCore]);
-  });
-
-
-
-  it('change collection issuer', async () => {
-    await createCollection(
-      api,
-      alice,
-      'test-metadata',
-      null,
-      'test-symbol',
-    ).then(async (collectionId) => {
-      await changeIssuer(api, alice, collectionId, bob);
-    });
-  });
-
-  it('[negative] change not an owner NFT collection issuer', async () => {
-    await createCollection(api, bob, 'test-metadata', null, 'test-symbol').then(async (collectionId) => {
-      const tx = changeIssuer(api, alice, collectionId, bob);
-      await expectTxFailure(/rmrkCore\.NoPermission/, tx);
-    });
-  });
-
-  it('[negative] change non-existigit NFT collection issuer', async () => {
-    await createCollection(
-      api,
-      alice,
-      'test-metadata',
-      null,
-      'test-symbol',
-    ).then(async () => {
-      const tx = changeIssuer(api, alice, 99999, bob);
-      await expectTxFailure(/rmrkCore\.CollectionUnknown/, tx);
-    });
-  });
-
-  after(async() => { await api.disconnect(); });
-});
deletedtests/src/rmrk/createBase.seqtest.tsdiffbeforeafterboth
--- a/tests/src/rmrk/createBase.seqtest.ts
+++ /dev/null
@@ -1,88 +0,0 @@
-import {getApiConnection} from '../substrate/substrate-api';
-import {requirePallets, Pallets} from './util/helpers';
-import {createCollection, createBase} from './util/tx';
-
-describe('integration test: create new Base', () => {
-  let api: any;
-  before(async function() {
-    api = await getApiConnection();
-    await requirePallets(this, [Pallets.RmrkCore, Pallets.RmrkEquip]);
-  });
-
-  const alice = '//Alice';
-
-  it('create empty Base', async () => {
-    await createBase(api, alice, 'empty-base-type', 'EBase', []);
-  });
-
-  it('create Base with fixed part', async () => {
-    await createBase(api, alice, 'fixedpart-base-type', 'FPBase', [
-      {
-        'FixedPart': {
-          id: 42,
-          z: 0,
-          src: 'some-fixed-url',
-        },
-      },
-    ]);
-  });
-
-  it('create Base with slot part (no collection)', async () => {
-    await createBase(api, alice, 'slotpart-base-type', 'SPBase', [
-      {
-        'SlotPart': {
-          id: 112,
-          equippable: 'Empty',
-          z: 0,
-          src: 'some-fallback-slot-url',
-        },
-      },
-    ]);
-  });
-
-  it('create Base with slot part (any collection)', async () => {
-    await createBase(api, alice, 'slotpartany-base-type', 'SPABase', [
-      {
-        'SlotPart': {
-          id: 222,
-          equippable: 'All',
-          z: 1,
-          src: 'some-fallback-slot-url',
-        },
-      },
-    ]);
-  });
-
-  it('create Base with slot part (custom collections)', async () => {
-    const firstCollectionId = await createCollection(
-      api,
-      alice,
-      'first-collection-meta',
-      null,
-      'first-collection',
-    );
-
-    const secondCollectionId = await createCollection(
-      api,
-      alice,
-      'first-collection-meta',
-      null,
-      'first-collection',
-    );
-
-    await createBase(api, alice, 'slotpartcustom-base-type', 'SPCBase', [
-      {
-        'SlotPart': {
-          id: 1024,
-          equippable: {
-            'Custom': [firstCollectionId, secondCollectionId],
-          },
-          z: 2,
-          src: 'some-fallback-slot-url',
-        },
-      },
-    ]);
-  });
-
-  after(async() => { await api.disconnect(); });
-});
deletedtests/src/rmrk/createCollection.seqtest.tsdiffbeforeafterboth
--- a/tests/src/rmrk/createCollection.seqtest.ts
+++ /dev/null
@@ -1,25 +0,0 @@
-import {getApiConnection} from '../substrate/substrate-api';
-import {requirePallets, Pallets} from './util/helpers';
-import {createCollection} from './util/tx';
-
-describe('Integration test: create new collection', () => {
-  let api: any;
-  before(async function () {
-    api = await getApiConnection();
-    await requirePallets(this, [Pallets.RmrkCore]);
-  });
-
-
-
-  const alice = '//Alice';
-
-  it('create NFT collection', async () => {
-    await createCollection(api, alice, 'test-metadata', 42, 'test-symbol');
-  });
-
-  it('create NFT collection without token limit', async () => {
-    await createCollection(api, alice, 'no-limit-metadata', null, 'no-limit-symbol');
-  });
-
-  after(async() => { await api.disconnect(); });
-});
deletedtests/src/rmrk/deleteCollection.seqtest.tsdiffbeforeafterboth
--- a/tests/src/rmrk/deleteCollection.seqtest.ts
+++ /dev/null
@@ -1,46 +0,0 @@
-import {getApiConnection} from '../substrate/substrate-api';
-import {expectTxFailure, requirePallets, Pallets} from './util/helpers';
-import {createCollection, deleteCollection} from './util/tx';
-
-describe('integration test: delete collection', () => {
-  let api: any;
-  before(async function () {
-    api = await getApiConnection();
-    await requirePallets(this, [Pallets.RmrkCore]);
-  });
-
-  const alice = '//Alice';
-  const bob = '//Bob';
-
-  it('delete NFT collection', async () => {
-    await createCollection(
-      api,
-      alice,
-      'test-metadata',
-      null,
-      'test-symbol',
-    ).then(async (collectionId) => {
-      await deleteCollection(api, alice, collectionId.toString());
-    });
-  });
-
-  it('[negative] delete non-existing NFT collection', async () => {
-    const tx = deleteCollection(api, alice, '99999');
-    await expectTxFailure(/rmrkCore\.CollectionUnknown/, tx);
-  });
-
-  it('[negative] delete not an owner NFT collection', async () => {
-    await createCollection(
-      api,
-      alice,
-      'test-metadata',
-      null,
-      'test-symbol',
-    ).then(async (collectionId) => {
-      const tx = deleteCollection(api, bob, collectionId.toString());
-      await expectTxFailure(/rmrkCore.NoPermission/, tx);
-    });
-  });
-
-  after(async() => { await api.disconnect(); });
-});
deletedtests/src/rmrk/equipNft.seqtest.tsdiffbeforeafterboth
--- a/tests/src/rmrk/equipNft.seqtest.ts
+++ /dev/null
@@ -1,340 +0,0 @@
-import {ApiPromise} from '@polkadot/api';
-import {expect} from 'chai';
-import {getApiConnection} from '../substrate/substrate-api';
-import {getNft, NftIdTuple} from './util/fetch';
-import {expectTxFailure, requirePallets, Pallets} from './util/helpers';
-import {
-  addNftComposableResource,
-  addNftSlotResource,
-  createBase,
-  createCollection,
-  equipNft,
-  mintNft,
-  sendNft,
-  unequipNft,
-} from './util/tx';
-
-const alice = '//Alice';
-const bob = '//Bob';
-
-const composableParts: number[] = [5, 2, 7];
-const composableSrc = 'test-cmp-src';
-const composableMetadata = 'test-cmp-metadata';
-const composableLicense = 'test-comp-license';
-const composableThumb = 'test-comp-thumb';
-
-const slotSrc = 'test-slot-src';
-const slotLicense = 'test-slot-license';
-const slotMetadata = 'test-slot-metadata';
-const slotThumb = 'test-slot-thumb';
-
-const slotId = 1;
-
-function createTestCollection(api: ApiPromise): Promise<number> {
-  return createCollection(
-    api,
-    alice,
-    'test-metadata',
-    null,
-    'test-symbol',
-  );
-}
-
-async function mintTestNft(api: ApiPromise, collectionId: number): Promise<number> {
-  return await mintNft(
-    api,
-    alice,
-    alice,
-    collectionId,
-    'nft-metadata',
-  );
-}
-
-async function mintChildNft(api: ApiPromise, collectionId: number, parentNftId: number): Promise<number> {
-  const nftChildId = await mintTestNft(api, collectionId);
-
-  const parentNFT: NftIdTuple = [collectionId, parentNftId];
-
-  await sendNft(api, 'sent', alice, collectionId, nftChildId, parentNFT);
-
-  return nftChildId;
-}
-
-function createTestBase(api: ApiPromise): Promise<number> {
-  return createBase(api, alice, 'test-base', 'DTBase', [
-    {
-      SlotPart: {
-        id: slotId,
-        equippable: 'All',
-        z: 1,
-        src: slotSrc,
-      },
-    },
-  ]);
-}
-
-async function addTestComposable(api: ApiPromise, collectionId: number, nftId: number, baseId: number) {
-  await addNftComposableResource(
-    api,
-    alice,
-    'added',
-    collectionId,
-    nftId,
-    composableParts,
-    baseId,
-    composableSrc,
-    composableMetadata,
-    composableLicense,
-    composableThumb,
-  );
-}
-
-async function addTestSlot(api: ApiPromise, collectionId: number, nftId: number, baseId: number, slotId: number): Promise<number> {
-  return await addNftSlotResource(
-    api,
-    alice,
-    'added',
-    collectionId,
-    nftId,
-    baseId,
-    slotId,
-    slotSrc,
-    slotMetadata,
-    slotLicense,
-    slotThumb,
-  );
-}
-
-async function checkEquipStatus(
-  api: ApiPromise,
-  expectedStatus: 'equipped' | 'unequipped',
-  collectionId: number,
-  nftId: number,
-) {
-  const itemNftDataOpt = await getNft(api, collectionId, nftId);
-  expect(itemNftDataOpt.isSome, 'Error: unable to fetch item NFT data');
-
-  const itemNftData = itemNftDataOpt.unwrap();
-  expect(itemNftData.equipped.isTrue, `Error: item NFT should be ${expectedStatus}`)
-    .to.be.equal(expectedStatus === 'equipped');
-}
-
-describe.skip('integration test: Equip NFT', () => {
-
-  let api: any;
-  
-  before(async function () {
-    api = await getApiConnection();
-    await requirePallets(this, [Pallets.RmrkCore, Pallets.RmrkEquip]);
-  });
-
-  it('equip nft', async () => {
-    const collectionId = await createTestCollection(api);
-    const nftParentId = await mintTestNft(api, collectionId);
-    const nftChildId = await mintChildNft(api, collectionId, nftParentId);
-
-    const baseId = await createTestBase(api);
-
-    await addTestComposable(api, collectionId, nftParentId, baseId);
-    const resourceId = await addTestSlot(api, collectionId, nftChildId, baseId, slotId);
-
-    const equipperNFT: NftIdTuple = [collectionId, nftParentId];
-    const itemNFT: NftIdTuple = [collectionId, nftChildId];
-
-    await equipNft(api, alice, itemNFT, equipperNFT, resourceId, baseId, slotId);
-
-    await checkEquipStatus(api, 'equipped', collectionId, nftChildId);
-  });
-
-  it('unequip nft', async () => {
-    const collectionId = await createTestCollection(api);
-    const nftParentId = await mintTestNft(api, collectionId);
-    const nftChildId = await mintChildNft(api, collectionId, nftParentId);
-
-    const baseId = await createTestBase(api);
-
-    await addTestComposable(api, collectionId, nftParentId, baseId);
-    const resourceId = await addTestSlot(api, collectionId, nftChildId, baseId, slotId);
-
-    const equipperNFT: NftIdTuple = [collectionId, nftParentId];
-    const itemNFT: NftIdTuple = [collectionId, nftChildId];
-
-    await equipNft(api, alice, itemNFT, equipperNFT, resourceId, baseId, slotId);
-
-    await checkEquipStatus(api, 'equipped', collectionId, nftChildId);
-
-    await unequipNft(api, alice, itemNFT, equipperNFT, resourceId, baseId, slotId);
-    await checkEquipStatus(api, 'unequipped', collectionId, nftChildId);
-  });
-
-  it('[negative] equip NFT onto non-existing NFT', async () => {
-    const collectionId = await createTestCollection(api);
-
-    const nftChildId = await mintNft(
-      api,
-      alice,
-      alice,
-      collectionId,
-      'nft-metadata',
-    );
-
-    const itemNFT: NftIdTuple = [collectionId, nftChildId];
-    const invalidEquipperNFT: NftIdTuple = [collectionId, 9999999];
-
-    const baseId = 0;
-    const resourceId = 0;
-
-    const tx = equipNft(api, alice, itemNFT, invalidEquipperNFT, resourceId, baseId, slotId);
-    await expectTxFailure(/rmrkCore\.NoAvailableNftId/, tx);
-  });
-
-  it('[negative] equip non-existing NFT', async () => {
-    const collectionId = await createTestCollection(api);
-    const nftParentId = await mintNft(
-      api,
-      alice,
-      alice,
-      collectionId,
-      'nft-metadata',
-    );
-
-    const baseId = await createTestBase(api);
-
-    await addTestComposable(api, collectionId, nftParentId, baseId);
-
-    const equipperNFT: NftIdTuple = [collectionId, nftParentId];
-    const invalidItemNFT: NftIdTuple = [collectionId, 99999999];
-
-    const resourceId = 0;
-
-    const tx = equipNft(api, alice, invalidItemNFT, equipperNFT, resourceId, baseId, slotId);
-    await expectTxFailure(/rmrkCore\.NoAvailableNftId/, tx);
-  });
-
-  it('[negative] equip NFT by a not-an-owner user', async () => {
-    const collectionId = await createTestCollection(api);
-    const nftParentId = await mintTestNft(api, collectionId);
-    const nftChildId = await mintChildNft(api, collectionId, nftParentId);
-
-    const baseId = await createTestBase(api);
-
-    await addTestComposable(api, collectionId, nftParentId, baseId);
-
-    const equipperNFT: NftIdTuple = [collectionId, nftParentId];
-    const itemNFT: NftIdTuple = [collectionId, nftChildId];
-
-    const resourceId = await addTestSlot(api, collectionId, nftChildId, baseId, slotId);
-
-    const tx = equipNft(api, bob, itemNFT, equipperNFT, resourceId, baseId, slotId);
-    await expectTxFailure(/rmrkEquip\.PermissionError/, tx);
-  });
-
-  it('[negative] unable to equip NFT onto indirect parent NFT', async () => {
-    const collectionId = await createTestCollection(api);
-    const nftParentId = await mintTestNft(api, collectionId);
-    const nftChildId = await mintChildNft(api, collectionId, nftParentId);
-    const nftGrandchildId = await mintChildNft(api, collectionId, nftChildId);
-
-    const baseId = await createTestBase(api);
-
-    await addTestComposable(api, collectionId, nftParentId, baseId);
-    const resourceId = await addTestSlot(api, collectionId, nftGrandchildId, baseId, slotId);
-
-    const equipperNFT: NftIdTuple = [collectionId, nftParentId];
-    const itemNFT: NftIdTuple = [collectionId, nftGrandchildId];
-
-    const tx = equipNft(api, alice, itemNFT, equipperNFT, resourceId, baseId, slotId);
-    await expectTxFailure(/rmrkEquip\.MustBeDirectParent/, tx);
-  });
-
-  it('[negative] unable to equip NFT onto parent NFT with another base', async () => {
-    const collectionId = await createTestCollection(api);
-    const nftParentId = await mintTestNft(api, collectionId);
-    const nftChildId = await mintChildNft(api, collectionId, nftParentId);
-
-    const baseId = await createTestBase(api);
-
-    await addTestComposable(api, collectionId, nftParentId, baseId);
-    const resourceId = await addTestSlot(api, collectionId, nftChildId, baseId, slotId);
-
-    const equipperNFT: NftIdTuple = [collectionId, nftParentId];
-    const itemNFT: NftIdTuple = [collectionId, nftChildId];
-
-    const invalidBaseId = 99999;
-
-    const tx = equipNft(api, alice, itemNFT, equipperNFT, resourceId, invalidBaseId, slotId);
-    await expectTxFailure(/rmrkEquip\.NoResourceForThisBaseFoundOnNft/, tx);
-  });
-
-  it('[negative] unable to equip NFT into slot with another id', async () => {
-    const collectionId = await createTestCollection(api);
-    const nftParentId = await mintTestNft(api, collectionId);
-    const nftChildId = await mintChildNft(api, collectionId, nftParentId);
-
-    const baseId = await createTestBase(api);
-
-    await addTestComposable(api, collectionId, nftParentId, baseId);
-    const resourceId = await addTestSlot(api, collectionId, nftChildId, baseId, slotId);
-
-    const equipperNFT: NftIdTuple = [collectionId, nftParentId];
-    const itemNFT: NftIdTuple = [collectionId, nftChildId];
-
-    const incorrectSlotId = slotId + 1;
-    const tx = equipNft(api, alice, itemNFT, equipperNFT, resourceId, baseId, incorrectSlotId);
-    await expectTxFailure(/rmrkEquip\.ItemHasNoResourceToEquipThere/, tx);
-  });
-
-  it('[negative] unable to equip NFT with incorrect slot (fixed part)', async () => {
-    const collectionId = await createTestCollection(api);
-    const nftParentId = await mintTestNft(api, collectionId);
-    const nftChildId = await mintChildNft(api, collectionId, nftParentId);
-
-    const baseId = await createBase(api, alice, 'test-base', 'DTBase', [
-      {
-        FixedPart: {
-          id: slotId,
-          equippable: 'All',
-          z: 1,
-          src: slotSrc,
-        },
-      },
-    ]);
-
-    await addTestComposable(api, collectionId, nftParentId, baseId);
-    const resourceId = await addTestSlot(api, collectionId, nftChildId, baseId, slotId);
-
-    const equipperNFT: NftIdTuple = [collectionId, nftParentId];
-    const itemNFT: NftIdTuple = [collectionId, nftChildId];
-
-    const tx = equipNft(api, alice, itemNFT, equipperNFT, resourceId, baseId, slotId);
-    await expectTxFailure(/rmrkEquip\.CantEquipFixedPart/, tx);
-  });
-
-  it('[negative] unable to equip NFT from a collection that is not allowed by the slot', async () => {
-    const collectionId = await createTestCollection(api);
-    const nftParentId = await mintTestNft(api, collectionId);
-    const nftChildId = await mintChildNft(api, collectionId, nftParentId);
-
-    const baseId = await createBase(api, alice, 'test-base', 'DTBase', [
-      {
-        SlotPart: {
-          id: 1,
-          z: 1,
-          equippable: 'Empty',
-          src: slotSrc,
-        },
-      },
-    ]);
-
-    await addTestComposable(api, collectionId, nftParentId, baseId);
-    const resourceId = await addTestSlot(api, collectionId, nftChildId, baseId, slotId);
-
-    const equipperNFT: NftIdTuple = [collectionId, nftParentId];
-    const itemNFT: NftIdTuple = [collectionId, nftChildId];
-
-    const tx = equipNft(api, alice, itemNFT, equipperNFT, resourceId, baseId, slotId);
-    await expectTxFailure(/rmrkEquip\.CollectionNotEquippable/, tx);
-  });
-
-  after(async() => { await api.disconnect(); });
-});
deletedtests/src/rmrk/getOwnedNfts.seqtest.tsdiffbeforeafterboth
--- a/tests/src/rmrk/getOwnedNfts.seqtest.ts
+++ /dev/null
@@ -1,80 +0,0 @@
-import {expect} from 'chai';
-import {getApiConnection} from '../substrate/substrate-api';
-import {requirePallets, Pallets} from './util/helpers';
-import {getOwnedNfts} from './util/fetch';
-import {mintNft, createCollection} from './util/tx';
-
-describe('integration test: get owned NFTs', () => {
-  let api: any;
-  
-  before(async function () {
-    api = await getApiConnection();
-    await requirePallets(this, [Pallets.RmrkCore]);
-  });
-
-
-  const alice = '//Alice';
-
-  it('fetch all NFTs owned by a user', async () => {
-    const owner = alice;
-    const collectionMetadata = 'aliceCollectionMetadata';
-    const collectionMax = null;
-    const collectionSymbol = 'AliceSym';
-    const recipientUri = null;
-    const royalty = null;
-    const nftMetadata = 'alice-NFT-metadata';
-
-    const collectionId = await createCollection(
-      api,
-      alice,
-      collectionMetadata,
-      collectionMax,
-      collectionSymbol,
-    );
-
-    const nftIds = [
-      await mintNft(
-        api,
-        alice,
-        owner,
-        collectionId,
-        nftMetadata + '-0',
-        recipientUri,
-        royalty,
-      ),
-      await mintNft(
-        api,
-        alice,
-        owner,
-        collectionId,
-        nftMetadata + '-1',
-        recipientUri,
-        royalty,
-      ),
-      await mintNft(
-        api,
-        alice,
-        owner,
-        collectionId,
-        nftMetadata + '-2',
-        recipientUri,
-        royalty,
-      ),
-    ];
-
-    const ownedNfts = await getOwnedNfts(api, alice, collectionId);
-
-    const isFound = (nftId: number) => {
-      return ownedNfts.find((ownedNftId) => {
-        return ownedNftId === nftId;
-      }) !== undefined;
-    };
-
-    nftIds.forEach((nftId) => {
-      expect(isFound(nftId), `NFT ${nftId} should be owned by ${alice}`)
-        .to.be.true;
-    });
-  });
-
-  after(async() => { await api.disconnect(); });
-});
deletedtests/src/rmrk/lockCollection.seqtest.tsdiffbeforeafterboth
--- a/tests/src/rmrk/lockCollection.seqtest.ts
+++ /dev/null
@@ -1,116 +0,0 @@
-import {getApiConnection} from '../substrate/substrate-api';
-import {expectTxFailure, requirePallets, Pallets} from './util/helpers';
-import {createCollection, lockCollection, mintNft} from './util/tx';
-
-describe('integration test: lock collection', () => {
-  const alice = '//Alice';
-  const bob = '//Bob';
-  const max = 5;
-
-  let api: any;
-  before(async function () {
-    api = await getApiConnection();
-    await requirePallets(this, [Pallets.RmrkCore]);
-  });
-
-  it('lock collection', async () => {
-    await createCollection(
-      api,
-      alice,
-      'test-metadata',
-      null,
-      'test-symbol',
-    ).then(async (collectionId) => {
-      await lockCollection(api, alice, collectionId);
-    });
-  });
-
-  it('[negative] lock non-existing NFT collection', async () => {
-    const tx = lockCollection(api, alice, 99999);
-    await expectTxFailure(/rmrkCore\.CollectionUnknown/, tx);
-  });
-
-  it('[negative] lock not an owner NFT collection issuer', async () => {
-    await createCollection(
-      api,
-      alice,
-      'test-metadata',
-      null,
-      'test-symbol',
-    ).then(async (collectionId) => {
-      const tx = lockCollection(api, bob, collectionId);
-      await expectTxFailure(/rmrkCore\.NoPermission/, tx);
-    });
-  });
-
-  it('lock collection with minting', async () => {
-    await createCollection(
-      api,
-      alice,
-      'test-metadata',
-      max,
-      'test-symbol',
-    ).then(async (collectionId) => {
-      for (let i = 0; i < 5; i++) {
-        await mintNft(
-          api,
-          alice,
-          alice,
-          collectionId,
-          'test-metadata',
-          null,
-          null,
-        );
-      }
-      await lockCollection(api, alice, collectionId, max);
-    });
-  });
-
-  it('[negative] unable to mint NFT inside a locked collection', async () => {
-    await createCollection(
-      api,
-      alice,
-      'test-metadata',
-      max,
-      'test-symbol',
-    ).then(async (collectionId) => {
-      await lockCollection(api, alice, collectionId);
-      const tx = mintNft(
-        api,
-        alice,
-        alice,
-        collectionId,
-        'test-metadata',
-        null,
-        null,
-      );
-      await expectTxFailure(/rmrkCore\.CollectionFullOrLocked/, tx);
-    });
-  });
-
-  it('[negative] unable to mint NFT inside a full collection', async () => {
-    await createCollection(api, alice, 'test-metadata', 1, 'test-symbol').then(async (collectionId) => {
-      await mintNft(
-        api,
-        alice,
-        alice,
-        collectionId,
-        'test-metadata',
-        null,
-        null,
-      );
-      const tx = mintNft(
-        api,
-        alice,
-        alice,
-        collectionId,
-        'test-metadata',
-        null,
-        null,
-      );
-      await expectTxFailure(/rmrkCore\.CollectionFullOrLocked/, tx);
-    });
-  });
-
-  after(async() => { await api.disconnect(); });
-});
deletedtests/src/rmrk/mintNft.seqtest.tsdiffbeforeafterboth
before · tests/src/rmrk/mintNft.seqtest.ts
1import {expect} from 'chai';2import {getApiConnection} from '../substrate/substrate-api';3import {getNft} from './util/fetch';4import {expectTxFailure, requirePallets, Pallets} from './util/helpers';5import {createCollection, mintNft} from './util/tx';67describe('integration test: mint new NFT', () => {8  let api: any;9 10  before(async function () {11    api = await getApiConnection();12    await requirePallets(this, [Pallets.RmrkCore]);13  });141516  const alice = '//Alice';17  const bob = '//Bob';18  const maxCollectionId = 0xFFFFFFFF;19  const maxNftId = 0xFFFFFFFF;2021  it('mint NFT', async () => {22    const owner = null;23    const collectionMetadata = 'mintingCollectionMetadata';24    const collectionMax = null;25    const collectionSymbol = 'MCS';26    const recipientUri = null;27    const royalty = null;28    const nftMetadata = 'NFT-test-metadata';2930    const collectionId = await createCollection(31      api,32      alice,33      collectionMetadata,34      collectionMax,35      collectionSymbol,36    );3738    await mintNft(39      api,40      alice,41      owner,42      collectionId,43      nftMetadata,44      recipientUri,45      royalty,46    );47  });4849  it('mint NFT and set another owner', async () => {50    const owner = bob;51    const collectionMetadata = 'setOwnerCollectionMetadata';52    const collectionMax = null;53    const collectionSymbol = 'SOCS';54    const recipientUri = null;55    const royalty = null;56    const nftMetadata = 'setOwner-NFT-metadata';5758    const collectionId = await createCollection(59      api,60      alice,61      collectionMetadata,62      collectionMax,63      collectionSymbol,64    );6566    await mintNft(67      api,68      alice,69      owner,70      collectionId,71      nftMetadata,72      recipientUri,73      royalty,74    );75  });7677  it('mint NFT with recipient and roalty', async () => {78    const owner = alice;79    const collectionMetadata = 'mintingCollectionMetadata';80    const collectionMax = null;81    const collectionSymbol = 'MCS';82    const recipientUri = bob;83    const royalty = 70000;84    const nftMetadata = 'recipient-royalty-NFT-test-metadata';8586    const collectionId = await createCollection(87      api,88      alice,89      collectionMetadata,90      collectionMax,91      collectionSymbol,92    );9394    await mintNft(95      api,96      alice,97      owner,98      collectionId,99      nftMetadata,100      recipientUri,101      royalty,102    );103  });104105  it('mint NFT with resources', async () => {106    const owner = alice;107    const collectionMetadata = 'mintingCollectionMetadata';108    const collectionMax = null;109    const collectionSymbol = 'MCS';110    const nftMetadata = 'NFT-with-resources-test-metadata';111    const resources = [112      {113        basic: {114          metadata: 'basic-resource-nft-minting',115        },116      }, {117        slot: {118          metadata: 'slot-resource-nft-minting',119          slot: 9,120        },121      }, {122        composable: {123          metadata: 'composable-resource-nft-minting',124          parts: [0, 5, 2],125        },126      }, {127        slot: {128          metadata: 'slot-resource-nft-minting-2',129          thumb: 'srnm2',130          base: 5,131        },132      },133    ];134135    const collectionId = await createCollection(136      api,137      alice,138      collectionMetadata,139      collectionMax,140      collectionSymbol,141    );142143    await mintNft(144      api,145      alice,146      owner,147      collectionId,148      nftMetadata,149      null,150      null,151      true,152      resources,153    );154  });155156  it('[negative] unable to mint NFT within non-existing collection', async () => {157    const owner = alice;158    const recipientUri = null;159    const royalty = null;160    const nftMetadata = 'NFT-test-metadata';161162    const tx = mintNft(163      api,164      alice,165      owner,166      maxCollectionId,167      nftMetadata,168      recipientUri,169      royalty,170    );171172    await expectTxFailure(/rmrkCore\.CollectionUnknown/, tx);173  });174175  it("[negative] unable to mint NFT by a user that isn't the owner of the collection", async () => {176    const owner = alice;177    const collectionMetadata = 'mintingCollectionMetadata';178    const collectionMax = null;179    const collectionSymbol = 'MCS';180    const recipientUri = null;181    const royalty = null;182    const nftMetadata = 'NFT-test-metadata';183184    const collectionId = await createCollection(185      api,186      alice,187      collectionMetadata,188      collectionMax,189      collectionSymbol,190    );191192    const tx = mintNft(193      api,194      bob,195      owner,196      collectionId,197      nftMetadata,198      recipientUri,199      royalty,200    );201202    await expectTxFailure(/rmrkCore\.NoPermission/, tx);203  });204205  it('[negative] unable to fetch non-existing NFT', async () => {206    const nft = await getNft(api, maxCollectionId, maxNftId);207    expect(nft.isSome).to.be.false;208  });209210  after(async() => { await api.disconnect(); });211});
deletedtests/src/rmrk/rejectNft.seqtest.tsdiffbeforeafterboth
--- a/tests/src/rmrk/rejectNft.seqtest.ts
+++ /dev/null
@@ -1,94 +0,0 @@
-import {expect} from 'chai';
-import {getApiConnection} from '../substrate/substrate-api';
-import {
-  createCollection,
-  mintNft,
-  sendNft,
-  rejectNft,
-} from './util/tx';
-import {NftIdTuple} from './util/fetch';
-import {isNftChildOfAnother, expectTxFailure, requirePallets, Pallets} from './util/helpers';
-
-describe('integration test: reject NFT', () => {
-  let api: any;
-  before(async function () {
-    api = await getApiConnection();
-    await requirePallets(this, [Pallets.RmrkCore]);
-  });
-
-
-
-  const alice = '//Alice';
-  const bob = '//Bob';
-
-  const createTestCollection = async (issuerUri: string) => {
-    return await createCollection(
-      api,
-      issuerUri,
-      'reject-metadata',
-      null,
-      'rjct',
-    );
-  };
-
-  it('reject NFT', async () => {
-    const ownerAlice = alice;
-    const ownerBob = bob;
-
-    const aliceCollectionId = await createTestCollection(alice);
-    const bobCollectionId = await createTestCollection(bob);
-
-    const parentNftId = await mintNft(api, alice, ownerAlice, aliceCollectionId, 'parent-nft-metadata');
-    const childNftId = await mintNft(api, bob, ownerBob, bobCollectionId, 'child-nft-metadata');
-
-    const newOwnerNFT: NftIdTuple = [aliceCollectionId, parentNftId];
-
-    await sendNft(api, 'pending', ownerBob, bobCollectionId, childNftId, newOwnerNFT);
-    await rejectNft(api, alice, bobCollectionId, childNftId);
-
-    const isChild = await isNftChildOfAnother(api, bobCollectionId, childNftId, newOwnerNFT);
-    expect(isChild, 'Error: rejected NFT is still a child of the target NFT').to.be.false;
-  });
-
-  it('[negative] unable to reject NFT by a not-an-owner', async () => {
-    const ownerAlice = alice;
-    const ownerBob = bob;
-
-    const aliceCollectionId = await createTestCollection(alice);
-    const bobCollectionId = await createTestCollection(bob);
-
-    const parentNftId = await mintNft(api, alice, ownerAlice, aliceCollectionId, 'parent-nft-metadata');
-    const childNftId = await mintNft(api, bob, ownerBob, bobCollectionId, 'child-nft-metadata');
-
-    const newOwnerNFT: NftIdTuple = [aliceCollectionId, parentNftId];
-
-    await sendNft(api, 'pending', ownerBob, bobCollectionId, childNftId, newOwnerNFT);
-    const tx = rejectNft(api, bob, bobCollectionId, childNftId);
-
-    await expectTxFailure(/rmrkCore\.CannotRejectNonOwnedNft/, tx);
-  });
-
-  it('[negative] unable to reject non-existing NFT', async () => {
-    const maxNftId = 0xFFFFFFFF;
-
-    const collectionId = await createTestCollection(alice);
-
-    const tx = rejectNft(api, alice, collectionId, maxNftId);
-
-    await expectTxFailure(/rmrkCore\.NoAvailableNftId/, tx);
-  });
-
-  it('[negative] unable to reject NFT which is not sent', async () => {
-    const ownerAlice = alice;
-
-    const collectionId = await createTestCollection(alice);
-
-    const nftId = await mintNft(api, alice, ownerAlice, collectionId, 'parent-nft-metadata');
-
-    const tx = rejectNft(api, alice, collectionId, nftId);
-
-    await expectTxFailure(/rmrkCore\.CannotRejectNonPendingNft/, tx);
-  });
-
-  after(async() => { await api.disconnect(); });
-});
deletedtests/src/rmrk/removeResource.seqtest.tsdiffbeforeafterboth
--- a/tests/src/rmrk/removeResource.seqtest.ts
+++ /dev/null
@@ -1,340 +0,0 @@
-import {getApiConnection} from '../substrate/substrate-api';
-import {NftIdTuple} from './util/fetch';
-import {expectTxFailure, requirePallets, Pallets} from './util/helpers';
-import {
-  acceptResourceRemoval, addNftBasicResource, createCollection, mintNft, removeNftResource, sendNft,
-} from './util/tx';
-
-
-
-
-describe('Integration test: remove nft resource', () => {
-  let api: any;
-  before(async function() {
-    api = await getApiConnection();
-    await requirePallets(this, [Pallets.RmrkCore]);
-  });
-
-  const alice = '//Alice';
-  const bob = '//Bob';
-  const src = 'test-basic-src';
-  const metadata = 'test-basic-metadata';
-  const license = 'test-basic-license';
-  const thumb = 'test-basic-thumb';
-
-  it('deleting a resource directly by the NFT owner', async () => {
-    const collectionIdAlice = await createCollection(
-      api,
-      alice,
-      'test-metadata',
-      null,
-      'test-symbol',
-    );
-
-    const nftAlice = await mintNft(
-      api,
-      alice,
-      alice,
-      collectionIdAlice,
-      'nft-metadata',
-    );
-
-    const resourceId = await addNftBasicResource(
-      api,
-      alice,
-      'added',
-      collectionIdAlice,
-      nftAlice,
-      src,
-      metadata,
-      license,
-      thumb,
-    );
-
-    await removeNftResource(api, 'removed', alice, collectionIdAlice, nftAlice, resourceId);
-  });
-
-  it('deleting resources indirectly by the NFT owner', async () => {
-    const collectionIdAlice = await createCollection(
-      api,
-      alice,
-      'test-metadata',
-      null,
-      'test-symbol',
-    );
-
-    const parentNftId = await mintNft(api, alice, alice, collectionIdAlice, 'parent-nft-metadata');
-    const childNftId = await mintNft(api, alice, alice, collectionIdAlice, 'child-nft-metadata');
-
-    const resourceId = await addNftBasicResource(
-      api,
-      alice,
-      'added',
-      collectionIdAlice,
-      childNftId,
-      src,
-      metadata,
-      license,
-      thumb,
-    );
-
-    const newOwnerNFT: NftIdTuple = [collectionIdAlice, parentNftId];
-
-    await sendNft(api, 'sent', alice, collectionIdAlice, childNftId, newOwnerNFT);
-
-    await removeNftResource(api, 'removed', alice, collectionIdAlice, childNftId, resourceId);
-  });
-
-  it('deleting a resource by the collection owner', async () => {
-    const collectionIdAlice = await createCollection(
-      api,
-      alice,
-      'test-metadata',
-      null,
-      'test-symbol',
-    );
-
-    const nftBob = await mintNft(
-      api,
-      alice,
-      bob,
-      collectionIdAlice,
-      'nft-metadata',
-    );
-
-    const resourceId = await addNftBasicResource(
-      api,
-      alice,
-      'pending',
-      collectionIdAlice,
-      nftBob,
-      src,
-      metadata,
-      license,
-      thumb,
-    );
-
-    await removeNftResource(api, 'pending', alice, collectionIdAlice, nftBob, resourceId);
-    await acceptResourceRemoval(api, bob, collectionIdAlice, nftBob, resourceId);
-  });
-
-  it('deleting a resource in a nested NFT by the collection owner', async () => {
-    const collectionIdAlice = await createCollection(
-      api,
-      alice,
-      'test-metadata',
-      null,
-      'test-symbol',
-    );
-
-    const parentNftId = await mintNft(
-      api,
-      alice,
-      bob,
-      collectionIdAlice,
-      'parent-nft-metadata',
-    );
-    const childNftId = await mintNft(
-      api,
-      alice,
-      bob,
-      collectionIdAlice,
-      'child-nft-metadata',
-    );
-
-    const resourceId = await addNftBasicResource(
-      api,
-      alice,
-      'pending',
-      collectionIdAlice,
-      childNftId,
-      src,
-      metadata,
-      license,
-      thumb,
-    );
-
-    const newOwnerNFT: NftIdTuple = [collectionIdAlice, parentNftId];
-
-    await sendNft(api, 'sent', bob, collectionIdAlice, childNftId, newOwnerNFT);
-
-    await removeNftResource(api, 'pending', alice, collectionIdAlice, childNftId, resourceId);
-    await acceptResourceRemoval(api, bob, collectionIdAlice, childNftId, resourceId);
-  });
-
-  it('[negative]: can\'t delete a resource in a non-existing collection', async () => {
-    const collectionIdAlice = await createCollection(
-      api,
-      alice,
-      'test-metadata',
-      null,
-      'test-symbol',
-    );
-
-    const nftAlice = await mintNft(
-      api,
-      alice,
-      alice,
-      collectionIdAlice,
-      'nft-metadata',
-    );
-
-    const resourceId = await addNftBasicResource(
-      api,
-      alice,
-      'added',
-      collectionIdAlice,
-      nftAlice,
-      src,
-      metadata,
-      license,
-      thumb,
-    );
-
-    const tx = removeNftResource(api, 'removed', alice, 0xFFFFFFFF, nftAlice, resourceId);
-    await expectTxFailure(/rmrkCore\.CollectionUnknown/, tx); // FIXME: inappropriate error message (NoAvailableNftId)
-  });
-
-  it('[negative]: only collection owner can delete a resource', async () => {
-    const collectionIdAlice = await createCollection(
-      api,
-      alice,
-      'test-metadata',
-      null,
-      'test-symbol',
-    );
-
-    const nftAlice = await mintNft(
-      api,
-      alice,
-      alice,
-      collectionIdAlice,
-      'nft-metadata',
-    );
-
-    const resourceId = await addNftBasicResource(
-      api,
-      alice,
-      'added',
-      collectionIdAlice,
-      nftAlice,
-      src,
-      metadata,
-      license,
-      thumb,
-    );
-
-    const tx = removeNftResource(api, 'removed', bob, collectionIdAlice, nftAlice, resourceId);
-    await expectTxFailure(/rmrkCore\.NoPermission/, tx);
-  });
-
-  it('[negative]: cannot delete a resource that does not exist', async () => {
-    const collectionIdAlice = await createCollection(
-      api,
-      alice,
-      'test-metadata',
-      null,
-      'test-symbol',
-    );
-
-    const nftAlice = await mintNft(
-      api,
-      alice,
-      alice,
-      collectionIdAlice,
-      'nft-metadata',
-    );
-
-    const tx = removeNftResource(api, 'removed', alice, collectionIdAlice, nftAlice, 127);
-    await expectTxFailure(/rmrkCore\.ResourceDoesntExist/, tx);
-  });
-
-  it('[negative]: Cannot accept deleting resource without owner attempt do delete it', async () => {
-    const collectionIdAlice = await createCollection(
-      api,
-      alice,
-      'test-metadata',
-      null,
-      'test-symbol',
-    );
-
-    const nftBob = await mintNft(
-      api,
-      alice,
-      bob,
-      collectionIdAlice,
-      'nft-metadata',
-    );
-
-    const resourceId = await addNftBasicResource(
-      api,
-      alice,
-      'pending',
-      collectionIdAlice,
-      nftBob,
-      src,
-      metadata,
-      license,
-      thumb,
-    );
-
-    const tx = acceptResourceRemoval(api, bob, collectionIdAlice, nftBob, resourceId);
-    await expectTxFailure(/rmrkCore\.ResourceNotPending/, tx);
-  });
-
-  it('[negative]: cannot confirm the deletion of a non-existing resource', async () => {
-    const collectionIdAlice = await createCollection(
-      api,
-      alice,
-      'test-metadata',
-      null,
-      'test-symbol',
-    );
-
-    const nftBob = await mintNft(
-      api,
-      alice,
-      bob,
-      collectionIdAlice,
-      'nft-metadata',
-    );
-
-    const tx = acceptResourceRemoval(api, bob, collectionIdAlice, nftBob, 127);
-    await expectTxFailure(/rmrkCore\.ResourceDoesntExist/, tx);
-  });
-
-  it('[negative]: Non-owner user cannot confirm the deletion of resource', async () => {
-    const collectionIdAlice = await createCollection(
-      api,
-      alice,
-      'test-metadata',
-      null,
-      'test-symbol',
-    );
-
-    const nftAlice = await mintNft(
-      api,
-      alice,
-      alice,
-      collectionIdAlice,
-      'nft-metadata',
-    );
-
-    const resourceId = await addNftBasicResource(
-      api,
-      alice,
-      'added',
-      collectionIdAlice,
-      nftAlice,
-      src,
-      metadata,
-      license,
-      thumb,
-    );
-
-    const tx = acceptResourceRemoval(api, bob, collectionIdAlice, nftAlice, resourceId);
-    await expectTxFailure(/rmrkCore\.NoPermission/, tx);
-  });
-
-  after(async() => { await api.disconnect(); });
-});
deletedtests/src/rmrk/rmrkIsolation.seqtest.tsdiffbeforeafterboth
--- a/tests/src/rmrk/rmrkIsolation.seqtest.ts
+++ /dev/null
@@ -1,225 +0,0 @@
-import {executeTransaction} from '../substrate/substrate-api';
-import {IKeyringPair} from '@polkadot/types/types';
-import {itSub, expect, usingPlaygrounds, Pallets, requirePalletsOrSkip} from '../util';
-import {UniqueHelper} from '../util/playgrounds/unique';
-
-let alice: IKeyringPair;
-let bob: IKeyringPair;
-
-async function createRmrkCollection(helper: UniqueHelper, sender: IKeyringPair): Promise<{uniqueId: number, rmrkId: number}> {
-  const result = await helper.executeExtrinsic(sender, 'api.tx.rmrkCore.createCollection', ['metadata', null, 'symbol'], true);
-
-  const uniqueId = helper.util.extractCollectionIdFromCreationResult(result);
-
-  let rmrkId = null;
-  result.result.events.forEach(({event: {data, method, section}}) => {
-    if ((section === 'rmrkCore') && (method === 'CollectionCreated')) {
-      rmrkId = parseInt(data[1].toString(), 10);
-    }
-  });
-
-  if (rmrkId === null) {
-    throw Error('No rmrkCore.CollectionCreated event was found!');
-  }
-
-  return {
-    uniqueId,
-    rmrkId,
-  };
-}
-
-async function createRmrkNft(helper: UniqueHelper, sender: IKeyringPair, collectionId: number): Promise<number> {
-  const result = await helper.executeExtrinsic(
-    sender,
-    'api.tx.rmrkCore.mintNft',
-    [
-      sender.address,
-      collectionId,
-      sender.address,
-      null,
-      'nft-metadata',
-      true,
-      null,
-    ],
-    true,
-  );
-
-  let rmrkNftId = null;
-  result.result.events.forEach(({event: {data, method, section}}) => {
-    if ((section === 'rmrkCore') && (method === 'NftMinted')) {
-      rmrkNftId = parseInt(data[2].toString(), 10);
-    }
-  });
-
-  if (rmrkNftId === null) {
-    throw Error('No rmrkCore.NftMinted event was found!');
-  }
-
-  return rmrkNftId;
-}
-
-describe('RMRK External Integration Test', () => {
-  before(async function() {
-    await usingPlaygrounds(async (_helper, privateKey) => {
-      alice = await privateKey('//Alice');
-    });
-  });
-
-  itSub.ifWithPallets('Creates a new RMRK collection that is mapped to a different ID and is tagged as external', [Pallets.RmrkCore], async ({helper}) => {
-    // throw away collection to bump last Unique collection ID to test ID mapping
-    await helper.nft.mintCollection(alice, {tokenPrefix: 'unqt'});
-
-    const collectionIds = await createRmrkCollection(helper, alice);
-
-    expect(collectionIds.rmrkId).to.be.lessThan(collectionIds.uniqueId, 'collection ID mapping');
-
-    const collection = (await helper.nft.getCollectionObject(collectionIds.uniqueId).getData())!; // (await getDetailedCollectionInfo(api, collectionIds.uniqueId))!;
-    expect(collection.raw.readOnly, 'tagged external').to.be.true;
-  });
-});
-
-describe('Negative Integration Test: External Collections, Internal Ops', () => {
-  let uniqueCollectionId: number;
-  let rmrkCollectionId: number;
-  let rmrkNftId: number;
-  let normalizedAlice: {Substrate: string};
-
-  before(async function() {
-    await usingPlaygrounds(async (helper, privateKey) => {
-      alice = await privateKey('//Alice');
-      bob = await privateKey('//Bob');
-      normalizedAlice = {Substrate: helper.address.normalizeSubstrateToChainFormat(alice.address)};
-
-      requirePalletsOrSkip(this, helper, [Pallets.RmrkCore]);
-
-      const collectionIds = await createRmrkCollection(helper, alice);
-      uniqueCollectionId = collectionIds.uniqueId;
-      rmrkCollectionId = collectionIds.rmrkId;
-
-      rmrkNftId = await createRmrkNft(helper, alice, rmrkCollectionId);
-    });
-  });
-
-  itSub.ifWithPallets('[Negative] Forbids Unique operations with an external collection, handled by dispatch_call', [Pallets.RmrkCore], async ({helper}) => {
-    // Collection item creation
-
-    await expect(helper.nft.mintToken(alice, {collectionId: uniqueCollectionId, owner: {Substrate: alice.address}}), 'creating item')
-      .to.be.rejectedWith(/common\.CollectionIsExternal/);
-
-    const txCreateMultipleItems = helper.getApi().tx.unique.createMultipleItems(uniqueCollectionId, normalizedAlice, [{NFT: {}}, {NFT: {}}]);
-    await expect(executeTransaction(helper.getApi(), alice, txCreateMultipleItems), 'creating multiple')
-      .to.be.rejectedWith(/common\.CollectionIsExternal/);
-  
-    await expect(helper.nft.mintMultipleTokens(alice, uniqueCollectionId, [{owner: {Substrate: alice.address}}]), 'creating multiple ex')
-      .to.be.rejectedWith(/common\.CollectionIsExternal/);
-
-    // Collection properties
-
-    await expect(helper.nft.setProperties(alice, uniqueCollectionId, [{key: 'a', value: '1'}, {key: 'b'}]), 'setting collection properties')
-      .to.be.rejectedWith(/common\.CollectionIsExternal/);
-
-    await expect(helper.nft.deleteProperties(alice, uniqueCollectionId, ['a']), 'deleting collection properties')
-      .to.be.rejectedWith(/common\.CollectionIsExternal/);
-
-    await expect(helper.nft.setTokenPropertyPermissions(alice, uniqueCollectionId, [{key: 'a', permission: {mutable: true}}]), 'setting property permissions')
-      .to.be.rejectedWith(/common\.CollectionIsExternal/);
-
-    // NFT
-
-    await expect(helper.nft.burnToken(alice, uniqueCollectionId, rmrkNftId, 1n), 'burning')
-      .to.be.rejectedWith(/common\.CollectionIsExternal/);
-
-    await expect(helper.nft.burnTokenFrom(alice, uniqueCollectionId, rmrkNftId, {Substrate: alice.address}, 1n), 'burning-from')
-      .to.be.rejectedWith(/common\.CollectionIsExternal/);
-
-    await expect(helper.nft.transferToken(alice, uniqueCollectionId, rmrkNftId, {Substrate: bob.address}), 'transferring')
-      .to.be.rejectedWith(/common\.CollectionIsExternal/);
-
-    await expect(helper.nft.approveToken(alice, uniqueCollectionId, rmrkNftId, {Substrate: bob.address}), 'approving')
-      .to.be.rejectedWith(/common\.CollectionIsExternal/);
-
-    await expect(helper.nft.transferTokenFrom(alice, uniqueCollectionId, rmrkNftId, {Substrate: alice.address}, {Substrate: bob.address}), 'transferring-from')
-      .to.be.rejectedWith(/common\.CollectionIsExternal/);
-
-    // NFT properties
-
-    await expect(helper.nft.setTokenProperties(alice, uniqueCollectionId, rmrkNftId, [{key: 'a', value: '2'}]), 'setting token properties')
-      .to.be.rejectedWith(/common\.CollectionIsExternal/);
-
-    await expect(helper.nft.deleteTokenProperties(alice, uniqueCollectionId, rmrkNftId, ['a']))
-      .to.be.rejectedWith(/common\.CollectionIsExternal/);
-  });
-
-  itSub.ifWithPallets('[Negative] Forbids Unique collection operations with an external collection', [Pallets.RmrkCore], async ({helper}) => {
-    await expect(helper.nft.burn(alice, uniqueCollectionId), 'destroying collection')
-      .to.be.rejectedWith(/common\.CollectionIsExternal/);
-
-    // Allow list
-
-    await expect(helper.nft.addToAllowList(alice, uniqueCollectionId, {Substrate: bob.address}), 'adding to allow list')
-      .to.be.rejectedWith(/common\.CollectionIsExternal/);
-
-    await expect(helper.nft.removeFromAllowList(alice, uniqueCollectionId, {Substrate: bob.address}), 'removing from allowlist')
-      .to.be.rejectedWith(/common\.CollectionIsExternal/);
-
-    // Owner / Admin / Sponsor
-
-    await expect(helper.nft.changeOwner(alice, uniqueCollectionId, bob.address), 'changing owner')
-      .to.be.rejectedWith(/common\.CollectionIsExternal/);
-
-    await expect(helper.nft.addAdmin(alice, uniqueCollectionId, {Substrate: bob.address}), 'adding admin')
-      .to.be.rejectedWith(/common\.CollectionIsExternal/);
-
-    await expect(helper.nft.removeAdmin(alice, uniqueCollectionId, {Substrate: bob.address}), 'removing admin')
-      .to.be.rejectedWith(/common\.CollectionIsExternal/);
-
-    await expect(helper.nft.setSponsor(alice, uniqueCollectionId, bob.address), 'setting sponsor')
-      .to.be.rejectedWith(/common\.CollectionIsExternal/);
-
-    await expect(helper.nft.confirmSponsorship(alice, uniqueCollectionId), 'confirming sponsor')
-      .to.be.rejectedWith(/common\.CollectionIsExternal/);
-
-    await expect(helper.nft.removeSponsor(alice, uniqueCollectionId), 'removing sponsor')
-      .to.be.rejectedWith(/common\.CollectionIsExternal/);
-    
-    // Limits / permissions / transfers
-
-    const txSetTransfers = helper.getApi().tx.unique.setTransfersEnabledFlag(uniqueCollectionId, true);
-    await expect(executeTransaction(helper.getApi(), alice, txSetTransfers), 'setting transfers enabled flag')
-      .to.be.rejectedWith(/common\.CollectionIsExternal/);
-
-    await expect(helper.nft.setLimits(alice, uniqueCollectionId, {transfersEnabled: false}), 'setting collection limits')
-      .to.be.rejectedWith(/common\.CollectionIsExternal/);
-
-    await expect(helper.nft.setPermissions(alice, uniqueCollectionId, {access: 'AllowList'}), 'setting collection permissions')
-      .to.be.rejectedWith(/common\.CollectionIsExternal/);
-  });
-});
-
-describe('Negative Integration Test: Internal Collections, External Ops', () => {
-  let collectionId: number;
-  let nftId: number;
-
-  before(async () => {
-    await usingPlaygrounds(async (helper, privateKey) => {
-      alice = await privateKey('//Alice');
-      bob = await privateKey('//Bob');
-
-      const collection = await helper.nft.mintCollection(alice, {tokenPrefix: 'iceo'});
-      collectionId = collection.collectionId;
-      nftId = (await collection.mintToken(alice)).tokenId;
-    });
-  });
-
-  itSub.ifWithPallets('[Negative] Forbids RMRK operations with the internal collection and NFT (due to the lack of mapping)', [Pallets.RmrkCore], async ({helper}) => {
-    const api = helper.getApi();
-
-    const txChangeOwner = api.tx.rmrkCore.changeCollectionIssuer(collectionId, bob.address);
-    await expect(executeTransaction(api, alice, txChangeOwner), 'changing collection issuer')
-      .to.be.rejectedWith(/rmrkCore\.CollectionUnknown/);
-
-    const maxBurns = 10;
-    const txBurnItem = api.tx.rmrkCore.burnNft(collectionId, nftId, maxBurns);
-    await expect(executeTransaction(api, alice, txBurnItem), 'burning NFT').to.be.rejectedWith(/rmrkCore\.CollectionUnknown/);
-  });
-});
deletedtests/src/rmrk/sendNft.seqtest.tsdiffbeforeafterboth
--- a/tests/src/rmrk/sendNft.seqtest.ts
+++ /dev/null
@@ -1,255 +0,0 @@
-import {expect} from 'chai';
-import {getApiConnection} from '../substrate/substrate-api';
-import {createCollection, mintNft, sendNft} from './util/tx';
-import {NftIdTuple} from './util/fetch';
-import {isNftChildOfAnother, expectTxFailure, requirePallets, Pallets} from './util/helpers';
-
-describe('integration test: send NFT', () => {
-  let api: any;
-  before(async function () {
-    api = await getApiConnection();
-    await requirePallets(this, [Pallets.RmrkCore]);
-  });
-
-  const maxNftId = 0xFFFFFFFF;
-
-  const alice = '//Alice';
-  const bob = '//Bob';
-
-  const createTestCollection = async (issuerUri: string) => {
-    return await createCollection(
-      api,
-      issuerUri,
-      'nft-collection-metadata',
-      null,
-      'nft-collection',
-    );
-  };
-
-
-  it('send NFT to another user', async () => {
-    const originalOwnerUri = alice;
-    const newOwnerUri = bob;
-
-    const collectionId = await createTestCollection(alice);
-
-    const nftId = await mintNft(api, alice, originalOwnerUri, collectionId, 'nft-metadata');
-
-    await sendNft(api, 'sent', originalOwnerUri, collectionId, nftId, newOwnerUri);
-  });
-
-  it('[negative] unable to send non-existing NFT', async () => {
-    const originalOwnerUri = alice;
-    const newOwnerUri = bob;
-
-    const collectionId = 0;
-    const tx = sendNft(api, 'sent', originalOwnerUri, collectionId, maxNftId, newOwnerUri);
-
-    await expectTxFailure(/rmrkCore\.NoAvailableNftId/, tx);
-  });
-
-  it('[negative] unable to send NFT by a not-an-owner', async () => {
-    const originalOwnerUri = alice;
-    const newOwnerUri = bob;
-
-    const collectionId = await createTestCollection(alice);
-
-    const nftId = await mintNft(api, alice, originalOwnerUri, collectionId, 'nft-metadata');
-
-    const tx = sendNft(api, 'sent', newOwnerUri, collectionId, nftId, newOwnerUri);
-    await expectTxFailure(/rmrkCore\.NoPermission/, tx);
-  });
-
-  it('send NFT to another NFT (same owner)', async () => {
-    const originalOwnerUri = alice;
-
-    const collectionId = await createTestCollection(alice);
-
-    const parentNftId = await mintNft(api, alice, originalOwnerUri, collectionId, 'parent-nft-metadata');
-    const childNftId = await mintNft(api, alice, originalOwnerUri, collectionId, 'child-nft-metadata');
-
-    const newOwnerNFT: NftIdTuple = [collectionId, parentNftId];
-
-    await sendNft(api, 'sent', alice, collectionId, childNftId, newOwnerNFT);
-
-    const isChild = await isNftChildOfAnother(api, collectionId, childNftId, newOwnerNFT);
-    expect(isChild).to.be.true;
-  });
-
-  it('[negative] send non-existing NFT to another NFT', async () => {
-    const originalOwnerUri = alice;
-
-    const collectionId = await createTestCollection(alice);
-
-    const parentNftId = await mintNft(api, alice, originalOwnerUri, collectionId, 'parent-nft-metadata');
-    const childNftId = maxNftId;
-
-    const newOwnerNFT: NftIdTuple = [collectionId, parentNftId];
-
-    const tx = sendNft(api, 'sent', alice, collectionId, childNftId, newOwnerNFT);
-
-    await expectTxFailure(/rmrkCore\.NoAvailableNftId/, tx);
-
-    const isChild = await isNftChildOfAnother(api, collectionId, childNftId, newOwnerNFT);
-    expect(isChild).to.be.false;
-  });
-
-  it('send NFT to another NFT (by not-an-owner)', async () => {
-    const originalOwnerUri = alice;
-
-    const collectionId = await createTestCollection(alice);
-
-    const author = alice;
-    const attacker = bob;
-
-    const parentNftId = await mintNft(api, author, originalOwnerUri, collectionId, 'parent-nft-metadata');
-    const childNftId = await mintNft(api, author, originalOwnerUri, collectionId, 'child-nft-metadata');
-
-    const newOwnerNFT: NftIdTuple = [collectionId, parentNftId];
-
-    const tx = sendNft(api, 'sent', attacker, collectionId, childNftId, newOwnerNFT);
-
-    await expectTxFailure(/rmrkCore\.NoPermission/, tx);
-
-    const isChild = await isNftChildOfAnother(api, collectionId, childNftId, newOwnerNFT);
-    expect(isChild).to.be.false;
-  });
-
-  it('[negative] send NFT to non-existing NFT', async () => {
-    const originalOwnerUri = alice;
-
-    const collectionId = await createTestCollection(alice);
-
-    const parentNftId = maxNftId;
-    const childNftId = await mintNft(api, alice, originalOwnerUri, collectionId, 'child-nft-metadata');
-
-    const newOwnerNFT: NftIdTuple = [collectionId, parentNftId];
-
-    const tx = sendNft(api, 'sent', alice, collectionId, childNftId, newOwnerNFT);
-
-    await expectTxFailure(/rmrkCore\.NoAvailableNftId/, tx);
-
-    const isChild = await isNftChildOfAnother(api, collectionId, childNftId, newOwnerNFT);
-    expect(isChild).to.be.false;
-  });
-
-  it('send NFT to another NFT owned by another user', async () => {
-    const ownerAlice = alice;
-    const ownerBob = bob;
-
-    const aliceCollectionId = await createTestCollection(alice);
-    const bobCollectionId = await createTestCollection(bob);
-
-    const parentNftId = await mintNft(api, alice, ownerAlice, aliceCollectionId, 'parent-nft-metadata');
-    const childNftId = await mintNft(api, bob, ownerBob, bobCollectionId, 'child-nft-metadata');
-
-    const newOwnerNFT: NftIdTuple = [aliceCollectionId, parentNftId];
-
-    await sendNft(api, 'pending', bob, bobCollectionId, childNftId, newOwnerNFT);
-  });
-
-  it('[negative] unable to send NFT to itself', async () => {
-    const nftOwner = alice;
-    const collectionId = await createTestCollection(alice);
-
-    const nftId = await mintNft(api, alice, nftOwner, collectionId, 'ouroboros-nft-metadata');
-
-    const newOwnerNFT: NftIdTuple = [collectionId, nftId];
-
-    const tx = sendNft(api, 'sent', alice, collectionId, nftId, newOwnerNFT);
-
-    await expectTxFailure(/rmrkCore\.CannotSendToDescendentOrSelf/, tx);
-
-    const isChild = await isNftChildOfAnother(api, collectionId, nftId, newOwnerNFT);
-    expect(isChild).to.be.false;
-  });
-
-  it('[negative] unable to send NFT to child NFT', async () => {
-    const originalOwnerUri = alice;
-
-    const collectionId = await createTestCollection(alice);
-
-    const parentNftId = await mintNft(api, alice, originalOwnerUri, collectionId, 'parent-nft-metadata');
-    const childNftId = await mintNft(api, alice, originalOwnerUri, collectionId, 'child-nft-metadata');
-
-    const newOwnerNFT: NftIdTuple = [collectionId, parentNftId];
-
-    await sendNft(api, 'sent', alice, collectionId, childNftId, newOwnerNFT);
-
-    const isChild = await isNftChildOfAnother(api, collectionId, childNftId, newOwnerNFT);
-    expect(isChild).to.be.true;
-
-    const descendentOwner: NftIdTuple = [collectionId, childNftId];
-    const tx = sendNft(api, 'sent', alice, collectionId, parentNftId, descendentOwner);
-
-    await expectTxFailure(/rmrkCore\.CannotSendToDescendentOrSelf/, tx);
-    const isOuroboros = await isNftChildOfAnother(api, collectionId, parentNftId, descendentOwner);
-    expect(isOuroboros).to.be.false;
-  });
-
-  it('[negative] unable to send NFT to descendent NFT', async () => {
-    const originalOwnerUri = alice;
-
-    const collectionId = await createTestCollection(alice);
-
-    const parentNftId = await mintNft(api, alice, originalOwnerUri, collectionId, 'parent-nft-metadata');
-    const childNftId = await mintNft(api, alice, originalOwnerUri, collectionId, 'child-nft-metadata');
-    const grandsonNftId = await mintNft(api, alice, originalOwnerUri, collectionId, 'grandson-nft-metadata');
-
-    const ownerParentNFT: NftIdTuple = [collectionId, parentNftId];
-
-    await sendNft(api, 'sent', alice, collectionId, childNftId, ownerParentNFT);
-
-    const isChild = await isNftChildOfAnother(api, collectionId, childNftId, ownerParentNFT);
-    expect(isChild).to.be.true;
-
-    const ownerChildNFT: NftIdTuple = [collectionId, childNftId];
-    await sendNft(api, 'sent', alice, collectionId, grandsonNftId, ownerChildNFT);
-
-    const isGrandson = await isNftChildOfAnother(api, collectionId, grandsonNftId, ownerChildNFT);
-    expect(isGrandson).to.be.true;
-
-    const ownerGrandsonNFT: NftIdTuple = [collectionId, grandsonNftId];
-    const tx = sendNft(api, 'sent', alice, collectionId, parentNftId, ownerGrandsonNFT);
-
-    await expectTxFailure(/rmrkCore\.CannotSendToDescendentOrSelf/, tx);
-    const isOuroboros = await isNftChildOfAnother(api, collectionId, parentNftId, ownerGrandsonNFT);
-    expect(isOuroboros).to.be.false;
-  });
-
-  it('send nested NFT to another user', async () => {
-    const originalOwner = alice;
-    const newOwner = bob;
-
-    const collectionId = await createTestCollection(alice);
-
-    const parentNftId = await mintNft(api, alice, originalOwner, collectionId, 'parent-nft-metadata');
-    const childNftId = await mintNft(api, alice, originalOwner, collectionId, 'child-nft-metadata');
-
-    const parentNftTuple: NftIdTuple = [collectionId, parentNftId];
-
-    await sendNft(api, 'sent', originalOwner, collectionId, childNftId, parentNftTuple);
-
-    await sendNft(api, 'sent', originalOwner, collectionId, childNftId, newOwner);
-  });
-
-  it('[negative] send nested NFT to another user (by a not-root-owner)', async () => {
-    const originalOwner = alice;
-    const newOwner = bob;
-
-    const collectionId = await createTestCollection(alice);
-
-    const parentNftId = await mintNft(api, alice, originalOwner, collectionId, 'parent-nft-metadata');
-    const childNftId = await mintNft(api, alice, originalOwner, collectionId, 'child-nft-metadata');
-
-    const parentNftTuple: NftIdTuple = [collectionId, parentNftId];
-
-    await sendNft(api, 'sent', originalOwner, collectionId, childNftId, parentNftTuple);
-
-    const tx = sendNft(api, 'sent', newOwner, collectionId, childNftId, newOwner);
-
-    await expectTxFailure(/rmrkCore\.NoPermission/, tx);
-  });
-
-  after(async() => { await api.disconnect(); });
-});
deletedtests/src/rmrk/setCollectionProperty.seqtest.tsdiffbeforeafterboth
--- a/tests/src/rmrk/setCollectionProperty.seqtest.ts
+++ /dev/null
@@ -1,66 +0,0 @@
-import {getApiConnection} from '../substrate/substrate-api';
-import {expectTxFailure, requirePallets, Pallets} from './util/helpers';
-import {createCollection, setPropertyCollection} from './util/tx';
-
-describe('integration test: set collection property', () => {
-  const alice = '//Alice';
-  const bob = '//Bob';
-
-  let api: any;
-  before(async function () {
-    api = await getApiConnection();
-    await requirePallets(this, [Pallets.RmrkCore]);
-  });
-
-  it('set collection property', async () => {
-    await createCollection(
-      api,
-      alice,
-      'test-metadata',
-      null,
-      'test-symbol',
-    ).then(async (collectionId) => {
-      await setPropertyCollection(api, alice, collectionId, 'test_key', '42');
-      await setPropertyCollection(api, alice, collectionId, 'test_key', '10');
-      await setPropertyCollection(
-        api,
-        alice,
-        collectionId,
-        'second_test_key',
-        '111',
-      );
-    });
-  });
-
-  it('[negative] set non-existing collection property', async () => {
-    const tx = setPropertyCollection(
-      api,
-      alice,
-      9999,
-      'test_key',
-      '42',
-    );
-    await expectTxFailure(/rmrkCore\.CollectionUnknown/, tx);
-  });
-
-  it('[negative] set property not an owner NFT collection issuer', async () => {
-    await createCollection(
-      api,
-      bob,
-      'test-metadata',
-      null,
-      'test-symbol',
-    ).then(async (collectionId) => {
-      const tx = setPropertyCollection(
-        api,
-        alice,
-        collectionId,
-        'test_key',
-        '42',
-      );
-      await expectTxFailure(/rmrkCore\.NoPermission/, tx);
-    });
-  });
-
-  after(async() => { await api.disconnect(); });
-});
deletedtests/src/rmrk/setEquippableList.seqtest.tsdiffbeforeafterboth
--- a/tests/src/rmrk/setEquippableList.seqtest.ts
+++ /dev/null
@@ -1,114 +0,0 @@
-import {getApiConnection} from '../substrate/substrate-api';
-import {expectTxFailure, requirePallets, Pallets} from './util/helpers';
-import {createCollection, createBase, setEquippableList} from './util/tx';
-
-describe("integration test: set slot's Equippable List", () => {
-  let api: any;
-  before(async function () {
-    api = await getApiConnection();
-    await requirePallets(this, [Pallets.RmrkCore]);
-  });
-
-  const alice = '//Alice';
-  const bob = '//Bob';
-
-  it("set Base's slot Equippable List", async () => {
-    const collectionIds = [
-      await createCollection(
-        api,
-        alice,
-        'equiplist-collection-metadata',
-        null,
-        'equiplist-0',
-      ),
-      await createCollection(
-        api,
-        alice,
-        'equiplist-collection-metadata',
-        null,
-        'equiplist-1',
-      ),
-    ];
-
-    const slotId = 202;
-
-    const baseId = await createBase(api, alice, 'slotpartany-base-type', 'slotpartany', [
-      {
-        'SlotPart': {
-          id: slotId,
-          equippable: 'All',
-          z: 1,
-          src: 'some-fallback-slot-url',
-        },
-      },
-    ]);
-
-    await setEquippableList(api, alice, baseId, slotId, 'All');
-    await setEquippableList(api, alice, baseId, slotId, 'Empty');
-    await setEquippableList(api, alice, baseId, slotId, {'Custom': collectionIds});
-  });
-
-  it('[negative] unable to set equippable list of a slot of non-existing base', async () => {
-    const maxBaseId = 0xFFFFFFFF;
-    const slotId = 0;
-
-    const tx = setEquippableList(api, alice, maxBaseId, slotId, 'All');
-    await expectTxFailure(/rmrkEquip\.BaseDoesntExist/, tx);
-  });
-
-  it('[negative] unable to set equippable list by a not-an-owner', async () => {
-    const slotId = 42;
-
-    const baseId = await createBase(api, alice, 'slotpartany-base-type', 'slotpartany', [
-      {
-        'SlotPart': {
-          id: slotId,
-          equippable: 'All',
-          z: 1,
-          src: 'some-fallback-slot-url',
-        },
-      },
-    ]);
-
-    const tx = setEquippableList(api, bob, baseId, slotId, 'All');
-    await expectTxFailure(/rmrkEquip\.PermissionError/, tx);
-  });
-
-  it('[negative] unable to set equippable list to a fixed part', async () => {
-    const fixedPartId = 42;
-
-    const baseId = await createBase(api, alice, 'fixedpart-base-type', 'fixedpart', [
-      {
-        'FixedPart': {
-          id: fixedPartId,
-          z: 0,
-          src: 'fixed-part-url',
-        },
-      },
-    ]);
-
-    const tx = setEquippableList(api, alice, baseId, fixedPartId, 'All');
-    await expectTxFailure(/rmrkEquip\.NoEquippableOnFixedPart/, tx);
-  });
-
-  it('[negative] unable to set equippable list to non-existing slot', async () => {
-    const slotId = 777;
-    const maxSlotId = 0xFFFFFFFF;
-
-    const baseId = await createBase(api, alice, 'slotpartany-base-type', 'slotpartany', [
-      {
-        'SlotPart': {
-          id: slotId,
-          equippable: 'All',
-          z: 1,
-          src: 'some-fallback-slot-url',
-        },
-      },
-    ]);
-
-    const tx = setEquippableList(api, alice, baseId, maxSlotId, 'All');
-    await expectTxFailure(/rmrkEquip\.PartDoesntExist/, tx);
-  });
-
-  after(async() => { await api.disconnect(); });
-});
deletedtests/src/rmrk/setNftProperty.seqtest.tsdiffbeforeafterboth
--- a/tests/src/rmrk/setNftProperty.seqtest.ts
+++ /dev/null
@@ -1,88 +0,0 @@
-import {getApiConnection} from '../substrate/substrate-api';
-import {NftIdTuple} from './util/fetch';
-import {expectTxFailure, requirePallets, Pallets} from './util/helpers';
-import {createCollection, mintNft, sendNft, setNftProperty} from './util/tx';
-
-describe('integration test: set NFT property', () => {
-  let api: any;
-  before(async function () {
-    api = await getApiConnection();
-    await requirePallets(this, [Pallets.RmrkCore]);
-  });
-
-  const alice = '//Alice';
-  const bob = '//Bob';
-
-  const createTestCollection = async (issuerUri: string) => {
-    return await createCollection(
-      api,
-      issuerUri,
-      'setprop-nft-collection-metadata',
-      null,
-      'setprop',
-    );
-  };
-
-  it('set NFT property', async () => {
-    const ownerAlice = alice;
-
-    const collectionId = await createTestCollection(alice);
-    const nftId = await mintNft(api, alice, ownerAlice, collectionId, 'prop-nft');
-
-    await setNftProperty(api, alice, collectionId, nftId, 'test-key', 'test-key-value');
-    await setNftProperty(api, alice, collectionId, nftId, 'test-key', 'updated-key-value');
-    await setNftProperty(api, alice, collectionId, nftId, 'second-test-key', 'second-test-key-value');
-  });
-
-  it('[negative] unable to set a property of non-existing NFT', async () => {
-    const collectionId = 0;
-    const maxNftId = 0xFFFFFFFF;
-
-    const tx = setNftProperty(api, alice, collectionId, maxNftId, 'test-key', 'test-value');
-
-    await expectTxFailure(/rmrkCore\.NoAvailableNftId/, tx);
-  });
-
-  it('[negative] unable to set a property by not-an-owner', async () => {
-    const ownerAlice = alice;
-
-    const collectionId = await createTestCollection(alice);
-    const nftId = await mintNft(api, alice, ownerAlice, collectionId, 'prop-nft');
-
-    const tx = setNftProperty(api, bob, collectionId, nftId, 'test-key', 'test-key-value');
-
-    await expectTxFailure(/rmrkCore\.NoPermission/, tx);
-  });
-
-  it('set a property to nested NFT', async () => {
-    const ownerAlice = alice;
-
-    const collectionId = await createTestCollection(alice);
-    const parentNftId = await mintNft(api, alice, ownerAlice, collectionId, 'prop-parent-nft');
-    const childNftId = await mintNft(api, alice, ownerAlice, collectionId, 'prop-child-nft');
-
-    const ownerNft: NftIdTuple = [collectionId, parentNftId];
-
-    await sendNft(api, 'sent', ownerAlice, collectionId, childNftId, ownerNft);
-
-    await setNftProperty(api, alice, collectionId, childNftId, 'test-key', 'test-key-value');
-  });
-
-  it('[negative] set a property to nested NFT (by not-root-owner)', async () => {
-    const ownerAlice = alice;
-
-    const collectionId = await createTestCollection(alice);
-    const parentNftId = await mintNft(api, alice, ownerAlice, collectionId, 'prop-parent-nft');
-    const childNftId = await mintNft(api, alice, ownerAlice, collectionId, 'prop-child-nft');
-
-    const ownerNft: NftIdTuple = [collectionId, parentNftId];
-
-    await sendNft(api, 'sent', ownerAlice, collectionId, childNftId, ownerNft);
-
-    const tx = setNftProperty(api, bob, collectionId, childNftId, 'test-key', 'test-key-value');
-
-    await expectTxFailure(/rmrkCore\.NoPermission/, tx);
-  });
-
-  after(async() => { await api.disconnect(); });
-});
deletedtests/src/rmrk/setResourcePriorities.seqtest.tsdiffbeforeafterboth
--- a/tests/src/rmrk/setResourcePriorities.seqtest.ts
+++ /dev/null
@@ -1,56 +0,0 @@
-import {getApiConnection} from '../substrate/substrate-api';
-import {expectTxFailure, requirePallets, Pallets} from './util/helpers';
-import {mintNft, createCollection, setResourcePriorities} from './util/tx';
-
-describe('integration test: set NFT resource priorities', () => {
-  let api: any;
-  before(async function () {
-    api = await getApiConnection();
-    await requirePallets(this, [Pallets.RmrkCore]);
-  });
-
-  const alice = '//Alice';
-  const bob = '//Bob';
-
-  const createTestCollection = (issuerUri: string) => {
-    return createCollection(
-      api,
-      issuerUri,
-      'resprio-collection-metadata',
-      null,
-      'resprio',
-    );
-  };
-
-  it('set NFT resource priorities', async () => {
-    const owner = alice;
-
-    const collectionId = await createTestCollection(alice);
-    const nftId = await mintNft(api, alice, owner, collectionId, 'resprio-nft-metadata');
-
-    await setResourcePriorities(api, alice, collectionId, nftId, [10, 42]);
-  });
-
-  it('[negative] set NFT resource priorities by a not-an-owner', async () => {
-    const owner = alice;
-    const attacker = bob;
-
-    const collectionId = await createTestCollection(alice);
-    const nftId = await mintNft(api, alice, owner, collectionId, 'resprio-nft-metadata');
-
-    const tx = setResourcePriorities(api, attacker, collectionId, nftId, [10, 42]);
-
-    await expectTxFailure(/rmrkCore\.NoPermission/, tx);
-  });
-
-  it('[negative] set NFT resource priorities to non-existing NFT', async () => {
-    const collectionId = 0;
-    const maxNftId = 0xFFFFFFFF;
-
-    const tx = setResourcePriorities(api, alice, collectionId, maxNftId, [10, 42]);
-
-    await expectTxFailure(/rmrkCore\.NoAvailableNftId/, tx);
-  });
-
-  after(async() => { await api.disconnect(); });
-});
deletedtests/src/rmrk/util/fetch.tsdiffbeforeafterboth
--- a/tests/src/rmrk/util/fetch.ts
+++ /dev/null
@@ -1,130 +0,0 @@
-import {ApiPromise} from '@polkadot/api';
-import type {Option} from '@polkadot/types-codec';
-import type {
-  RmrkTraitsCollectionCollectionInfo as Collection,
-  RmrkTraitsNftNftInfo as Nft,
-  RmrkTraitsResourceResourceInfo as Resource,
-  RmrkTraitsBaseBaseInfo as Base,
-  RmrkTraitsPartPartType as PartType,
-  RmrkTraitsNftNftChild as NftChild,
-  RmrkTraitsTheme as Theme,
-  RmrkTraitsPropertyPropertyInfo as Property,
-} from '../../interfaces/default/types'; // '@polkadot/types/lookup';
-import '../../interfaces/augment-api';
-import '../../interfaces/augment-api-query';
-import privateKey from '../../substrate/privateKey';
-
-export type NftIdTuple = [number, number];
-
-export async function getCollectionsCount(api: ApiPromise): Promise<number> {
-  return (await api.rpc.rmrk.lastCollectionIdx()).toNumber();
-}
-
-export function getCollection(api: ApiPromise, id: number): Promise<Option<Collection>> {
-  return api.rpc.rmrk.collectionById(id);
-}
-
-export async function getOwnedNfts(
-  api: ApiPromise,
-  ownerUri: string,
-  collectionId: number,
-): Promise<number[]> {
-  const ss58Format = api.registry.getChainProperties()!.toJSON().ss58Format;
-  const owner = privateKey(ownerUri, Number(ss58Format));
-
-  return (await api.rpc.rmrk.accountTokens(owner.address, collectionId))
-    .map((value) => value.toNumber());
-}
-
-export function getNft(api: ApiPromise, collectionId: number, nftId: number): Promise<Option<Nft>> {
-  return api.rpc.rmrk.nftById(collectionId, nftId);
-}
-
-export async function getCollectionProperties(api: ApiPromise, collectionId: number): Promise<Property[]> {
-  return (await api.rpc.rmrk.collectionProperties(collectionId)).toArray();
-}
-
-export async function getNftProperties(api: ApiPromise, collectionId: number, nftId: number): Promise<Property[]> {
-  return (await api.rpc.rmrk.nftProperties(collectionId, nftId)).toArray();
-}
-
-export async function getChildren(
-  api: ApiPromise,
-  collectionId: number,
-  nftId: number,
-): Promise<NftChild[]> {
-  return (await api.rpc.rmrk.nftChildren(collectionId, nftId)).toArray();
-}
-
-export function getBase(api: ApiPromise, baseId: number): Promise<Option<Base>> {
-  return api.rpc.rmrk.base(baseId);
-}
-
-export async function getParts(api: ApiPromise, baseId: number): Promise<PartType[]> {
-  return (await api.rpc.rmrk.baseParts(baseId)).toArray();
-}
-
-export async function getEquippableList(
-  api: ApiPromise,
-  baseId: number,
-  slotId: number,
-): Promise<'All' | 'Empty' | { 'Custom': number[] } | null> {
-  const parts = await getParts(api, baseId);
-
-  const part = parts.find((part) => {
-    if (part.isSlotPart) {
-      return part.asSlotPart.id.toNumber() === slotId;
-    } else {
-      return false;
-    }
-  });
-
-  if (part) {
-    const slot = part.asSlotPart;
-    if (slot.equippable.isCustom) {
-      return {
-        'Custom': slot.equippable.asCustom
-          .toArray()
-          .map((collectionId) => collectionId.toNumber()),
-      };
-    } else if (slot.equippable.isAll) {
-      return 'All';
-    } else {
-      return 'Empty';
-    }
-  } else {
-    return null;
-  }
-}
-
-export async function getResourcePriority(
-  api: ApiPromise,
-  collectionId: number,
-  nftId: number,
-  resourceId: number,
-): Promise<number> {
-  return (await api.rpc.rmrk.nftResourcePriority(collectionId, nftId, resourceId))
-    .unwrap().toNumber();
-}
-
-export async function getThemeNames(api: ApiPromise, baseId: number): Promise<string[]> {
-  return (await api.rpc.rmrk.themeNames(baseId))
-    .map((name) => name.toUtf8());
-}
-
-export function getTheme(
-  api: ApiPromise,
-  baseId: number,
-  themeName: string,
-  keys: string[] | null = null,
-): Promise<Option<Theme>> {
-  return api.rpc.rmrk.themes(baseId, themeName, keys);
-}
-
-export async function getResources(
-  api: ApiPromise,
-  collectionId: number,
-  nftId: number,
-): Promise<Resource[]> {
-  return (await api.rpc.rmrk.nftResources(collectionId, nftId)).toArray();
-}
deletedtests/src/rmrk/util/helpers.tsdiffbeforeafterboth
--- a/tests/src/rmrk/util/helpers.ts
+++ /dev/null
@@ -1,249 +0,0 @@
-import {ApiPromise} from '@polkadot/api';
-import {
-  RmrkTraitsNftAccountIdOrCollectionNftTuple as NftOwner,
-  RmrkTraitsPropertyPropertyInfo as Property,
-  RmrkTraitsResourceResourceInfo as ResourceInfo,
-} from '@polkadot/types/lookup';
-import type {EventRecord} from '@polkadot/types/interfaces';
-import type {GenericEventData} from '@polkadot/types';
-import privateKey from '../../substrate/privateKey';
-import {NftIdTuple, getChildren, getOwnedNfts, getCollectionProperties, getNftProperties, getResources} from './fetch';
-import chaiAsPromised from 'chai-as-promised';
-import chai from 'chai';
-import {getApiConnection} from '../../substrate/substrate-api';
-import {Context} from 'mocha';
-
-chai.use(chaiAsPromised);
-const expect = chai.expect;
-
-interface TxResult<T> {
-    success: boolean;
-    successData: T | null;
-}
-
-export enum Pallets {
-  Inflation = 'inflation',
-  RmrkCore = 'rmrkcore',
-  RmrkEquip = 'rmrkequip',
-  ReFungible = 'refungible',
-  Fungible = 'fungible',
-  NFT = 'nonfungible',
-  Scheduler = 'scheduler',
-  AppPromotion = 'apppromotion',
-}
-
-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[]> {
-  const api = await getApiConnection();
-  const pallets = getModuleNames(api);
-  await api.disconnect();
-
-  return requiredPallets.filter(p => !pallets.includes(p));
-}
-
-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 makeNftOwner(api: ApiPromise, owner: string | NftIdTuple): NftOwner {
-  const isNftSending = (typeof owner !== 'string');
-
-  if (isNftSending) {
-    return api.createType('RmrkTraitsNftAccountIdOrCollectionNftTuple', {
-      'CollectionAndNftTuple': owner,
-    });
-  } else {
-    const ss58Format = api.registry.getChainProperties()!.toJSON().ss58Format;
-    return api.createType('RmrkTraitsNftAccountIdOrCollectionNftTuple', {
-      AccountId: privateKey(owner, Number(ss58Format)).address,
-    });
-  }
-}
-
-export async function isNftOwnedBy(
-  api: ApiPromise,
-  owner: string | NftIdTuple,
-  collectionId: number,
-  nftId: number,
-): Promise<boolean> {
-  if (typeof owner === 'string') {
-    return (await getOwnedNfts(api, owner, collectionId))
-      .find(ownedNftId => {
-        return ownedNftId === nftId;
-      }) !== undefined;
-  } else {
-    return (await getChildren(api, owner[0], owner[1]))
-      .find(child => {
-        return collectionId === child.collectionId.toNumber()
-                    && nftId === child.nftId.toNumber();
-      }) !== undefined;
-  }
-}
-
-export function isPropertyExists(
-  key: string,
-  value: string,
-  props: Property[],
-): boolean {
-  let isPropFound = false;
-  for (let i = 0; i < props.length && !isPropFound; i++) {
-    const fetchedProp = props[i];
-
-    isPropFound = fetchedProp.key.eq(key)
-                    && fetchedProp.value.eq(value);
-  }
-
-  return isPropFound;
-}
-
-export async function isCollectionPropertyExists(
-  api: ApiPromise,
-  collectionId: number,
-  key: string,
-  value: string,
-): Promise<boolean> {
-  const fetchedProps = await getCollectionProperties(api, collectionId);
-  return isPropertyExists(key, value, fetchedProps);
-}
-
-export async function isNftPropertyExists(
-  api: ApiPromise,
-  collectionId: number,
-  nftId: number,
-  key: string,
-  value: string,
-): Promise<boolean> {
-  const fetchedProps = await getNftProperties(api, collectionId, nftId);
-  return isPropertyExists(key, value, fetchedProps);
-}
-
-export async function isNftChildOfAnother(
-  api: ApiPromise,
-  collectionId: number,
-  nftId: number,
-  parentNft: NftIdTuple,
-): Promise<boolean> {
-  return (await getChildren(api, parentNft[0], parentNft[1]))
-    .find((childNft) => {
-      return childNft.collectionId.toNumber() === collectionId
-                && childNft.nftId.toNumber() === nftId;
-    }) !== undefined;
-}
-
-export function isTxResultSuccess(events: EventRecord[]): boolean {
-  let success = false;
-
-  events.forEach(({event: {method}}) => {
-    if (method == 'ExtrinsicSuccess') {
-      success = true;
-    }
-  });
-
-  return success;
-}
-
-export async function expectTxFailure(expectedError: RegExp, promise: Promise<any>) {
-  await expect(promise).to.be.rejectedWith(expectedError);
-}
-
-export function extractTxResult<T>(
-  events: EventRecord[],
-  expectSection: string,
-  expectMethod: string,
-  extractAction: (data: any) => T,
-): TxResult<T> {
-  let success = false;
-  let successData = null;
-  events.forEach(({event: {data, method, section}}) => {
-    if (method == 'ExtrinsicSuccess') {
-      success = true;
-    } else if ((expectSection == section) && (expectMethod == method)) {
-      successData = extractAction(data);
-    }
-  });
-  const result: TxResult<T> = {
-    success,
-    successData,
-  };
-  return result;
-}
-
-export function extractRmrkCoreTxResult<T>(
-  events: EventRecord[],
-  expectMethod: string,
-  extractAction: (data: GenericEventData) => T,
-): TxResult<T> {
-  return extractTxResult(events, 'rmrkCore', expectMethod, extractAction);
-}
-
-export function extractRmrkEquipTxResult<T>(
-  events: EventRecord[],
-  expectMethod: string,
-  extractAction: (data: GenericEventData) => T,
-): TxResult<T> {
-  return extractTxResult(events, 'rmrkEquip', expectMethod, extractAction);
-}
-
-export async function findResourceById(
-  api: ApiPromise,
-  collectionId: number,
-  nftId: number,
-  resourceId: number,
-): Promise<ResourceInfo> {
-  const resources = await getResources(api, collectionId, nftId);
-
-  let resource = null;
-
-  for (let i = 0; i < resources.length; i++) {
-    const res = resources[i];
-
-    if (res.id.eq(resourceId)) {
-      resource = res;
-      break;
-    }
-  }
-
-  return resource!;
-}
-
-export async function getResourceById(
-  api: ApiPromise,
-  collectionId: number,
-  nftId: number,
-  resourceId: number,
-): Promise<ResourceInfo> {
-  const resource = await findResourceById(
-    api,
-    collectionId,
-    nftId,
-    resourceId,
-  );
-
-  expect(resource !== null, 'Error: resource was not found').to.be.true;
-
-  return resource!;
-}
-
-export function checkResourceStatus(
-  resource: ResourceInfo,
-  expectedStatus: 'pending' | 'added',
-) {
-  expect(resource.pending.isTrue, `Error: added resource should be ${expectedStatus}`)
-    .to.be.equal(expectedStatus === 'pending');
-}
deletedtests/src/rmrk/util/tx.tsdiffbeforeafterboth
--- a/tests/src/rmrk/util/tx.ts
+++ /dev/null
@@ -1,1132 +0,0 @@
-import {ApiPromise} from '@polkadot/api';
-import {Bytes, Option, u32, Vec} from '@polkadot/types-codec';
-import {
-  RmrkTraitsNftAccountIdOrCollectionNftTuple as NftOwner, RmrkTraitsPartEquippableList as EquippableList,
-  RmrkTraitsPartPartType as PartType, RmrkTraitsResourceBasicResource as BasicResource,
-  RmrkTraitsResourceComposableResource as ComposableResource, RmrkTraitsResourceResourceInfo as ResourceInfo, RmrkTraitsResourceSlotResource as SlotResource, RmrkTraitsTheme as Theme,
-} from '@polkadot/types/lookup';
-import {IKeyringPair} from '@polkadot/types/types';
-import chai from 'chai';
-import chaiAsPromised from 'chai-as-promised';
-import '../../interfaces/augment-api';
-import privateKey from '../../substrate/privateKey';
-import {executeTransaction} from '../../substrate/substrate-api';
-import {
-  getBase,
-  getCollection,
-  getCollectionsCount,
-  getEquippableList,
-  getNft,
-  getParts,
-  getResources, 
-  getResourcePriority, 
-  getTheme,
-  NftIdTuple,
-} from './fetch';
-import {
-  extractRmrkCoreTxResult,
-  extractRmrkEquipTxResult, isCollectionPropertyExists, isNftOwnedBy, isNftPropertyExists, isTxResultSuccess, makeNftOwner,
-  findResourceById, getResourceById, checkResourceStatus,
-} from './helpers';
-
-chai.use(chaiAsPromised);
-const expect = chai.expect;
-
-export async function createCollection(
-  api: ApiPromise,
-  issuerUri: string,
-  metadata: string,
-  max: number | null,
-  symbol: string,
-): Promise<number> {
-  let collectionId = 0;
-
-  const oldCollectionCount = await getCollectionsCount(api);
-  const maxOptional = max ? max.toString() : null;
-  const ss58Format = (api.registry.getChainProperties())!.toJSON().ss58Format;
-  const issuer = privateKey(issuerUri, Number(ss58Format));
-  const tx = api.tx.rmrkCore.createCollection(metadata, maxOptional, symbol);
-  const events = await executeTransaction(api, issuer, tx);
-
-  const collectionResult = extractRmrkCoreTxResult(events, 'CollectionCreated', (data) => {
-    return parseInt(data[1].toString(), 10);
-  });
-  expect(collectionResult.success, 'Error: unable to create a collection').to.be.true;
-
-  collectionId = collectionResult.successData!;
-
-  const newCollectionCount = await getCollectionsCount(api);
-  const collectionOption = await getCollection(api, collectionId);
-
-  expect(newCollectionCount).to.be.equal(oldCollectionCount + 1, 'Error: NFT collection count should increase');
-  expect(collectionOption.isSome, 'Error: unable to fetch created NFT collection').to.be.true;
-
-  const collection = collectionOption.unwrap();
-
-  expect(collection.metadata.toUtf8()).to.be.equal(metadata, 'Error: Invalid NFT collection metadata');
-  expect(collection.max.isSome).to.be.equal(max !== null, 'Error: Invalid NFT collection max');
-
-  if (collection.max.isSome) {
-    expect(collection.max.unwrap().toNumber()).to.be.equal(max, 'Error: Invalid NFT collection max');
-  }
-  expect(collection.symbol.toUtf8()).to.be.equal(symbol, "Error: Invalid NFT collection's symbol");
-  expect(collection.nftsCount.toNumber()).to.be.equal(0, "Error: NFT collection shoudn't have any tokens");
-  expect(collection.issuer.toString()).to.be.equal(issuer.address, 'Error: Invalid NFT collection issuer');
-
-  return collectionId;
-}
-
-export async function changeIssuer(
-  api: ApiPromise,
-  issuerUri: string,
-  collectionId: number,
-  newIssuer: string,
-) {
-  const ss58Format = api.registry.getChainProperties()!.toJSON().ss58Format;
-  const alice = privateKey(issuerUri, Number(ss58Format));
-  const bob = privateKey(newIssuer, Number(ss58Format));
-
-  // This is only needed when RMRK uses `uniques` pallet by Parity
-  // let tx = api.tx.uniques.setAcceptOwnership(
-  //     api.createType('Option<u32>', collectionId)
-  // );
-  // let events = await executeTransaction(api, bob, tx);
-  // expect(isTxResultSuccess(events), 'Error: Unable to accept ownership').to.be.true;
-
-  const tx = api.tx.rmrkCore.changeCollectionIssuer(collectionId, bob.address);
-  const events = await executeTransaction(api, alice, tx);
-  const changeIssuerResult = extractRmrkCoreTxResult(events, 'IssuerChanged', (data) => {
-    return parseInt(data[2].toString(), 10);
-  });
-  expect(changeIssuerResult.success, 'Error: Unable to change NFT collection issuer').to.be.true;
-  expect(changeIssuerResult.successData!, 'Error: Invalid collection id after changing the issuer')
-    .to.be.eq(collectionId);
-
-  await getCollection(api, collectionId).then((collectionOption) => {
-    const collection = collectionOption.unwrap();
-    expect(collection.issuer.toString())
-      .to.be.deep.eq(bob.address, 'Error: Invalid NFT collection issuer');
-  });
-}
-
-export async function deleteCollection(
-  api: ApiPromise,
-  issuerUri: string,
-  collectionId: string,
-): Promise<number> {
-  const ss58Format = api.registry.getChainProperties()!.toJSON().ss58Format;
-  const issuer = privateKey(issuerUri, Number(ss58Format));
-  const tx = api.tx.rmrkCore.destroyCollection(collectionId);
-  const events = await executeTransaction(api, issuer, tx);
-
-  const collectionTxResult = extractRmrkCoreTxResult(
-    events,
-    'CollectionDestroy',
-    (data) => {
-      return parseInt(data[1].toString(), 10);
-    },
-  );
-  expect(collectionTxResult.success, 'Error: Unable to delete NFT collection').to.be.true;
-
-  const collection = await getCollection(
-    api,
-    parseInt(collectionId, 10),
-  );
-  expect(collection.isEmpty, 'Error: NFT collection should be deleted').to.be.true;
-
-  return 0;
-}
-
-export async function negativeDeleteCollection(
-  api: ApiPromise,
-  issuerUri: string,
-  collectionId: string,
-): Promise<number> {
-  const ss58Format = api.registry.getChainProperties()!.toJSON().ss58Format;
-  const issuer = privateKey(issuerUri, Number(ss58Format));
-  const tx = api.tx.rmrkCore.destroyCollection(collectionId);
-  await expect(executeTransaction(api, issuer, tx)).to.be.rejected;
-
-  return 0;
-}
-
-export async function setNftProperty(
-  api: ApiPromise,
-  issuerUri: string,
-  collectionId: number,
-  nftId: number,
-  key: string,
-  value: string,
-) {
-  const ss58Format = api.registry.getChainProperties()!.toJSON().ss58Format;
-  const issuer = privateKey(issuerUri, Number(ss58Format));
-  const nftIdOpt = api.createType('Option<u32>', nftId);
-  const tx = api.tx.rmrkCore.setProperty(
-    collectionId,
-    nftIdOpt,
-    key,
-    value,
-  );
-  const events = await executeTransaction(api, issuer, tx);
-
-  const propResult = extractRmrkCoreTxResult(events, 'PropertySet', (data) => {
-    return {
-      collectionId: parseInt(data[0].toString(), 10),
-      nftId: data[1] as Option<u32>,
-      key: data[2] as Bytes,
-      value: data[3] as Bytes,
-    };
-  });
-
-  expect(propResult.success, 'Error: Unable to set NFT property').to.be.true;
-  const eventData = propResult.successData!;
-  const eventDescription = 'from set NFT property event';
-
-  expect(eventData.collectionId, 'Error: Invalid collection ID ' + eventDescription)
-    .to.be.equal(collectionId);
-
-  expect(eventData.nftId.eq(nftIdOpt), 'Error: Invalid NFT ID ' + eventDescription)
-    .to.be.true;
-
-  expect(eventData.key.eq(key), 'Error: Invalid property key ' + eventDescription)
-    .to.be.true;
-
-  expect(eventData.value.eq(value), 'Error: Invalid property value ' + eventDescription)
-    .to.be.true;
-
-  expect(
-    await isNftPropertyExists(api, collectionId, nftId, key, value),
-    'Error: NFT property is not found',
-  ).to.be.true;
-}
-
-export async function mintNft(
-  api: ApiPromise,
-  issuerUri: string,
-  ownerUri: string | null,
-  collectionId: number,
-  metadata: string,
-  recipientUri: string | null = null,
-  royalty: number | null = null,
-  transferable = true,
-  resources: {basic?: any, composable?: any, slot?: any}[] | null = null,
-): Promise<number> {
-  let nftId = 0;
-  const ss58Format = api.registry.getChainProperties()!.toJSON().ss58Format;
-  const issuer = privateKey(issuerUri, Number(ss58Format));
-  const owner = ownerUri ? privateKey(ownerUri, Number(ss58Format)).address : null;
-  const recipient = recipientUri ? privateKey(recipientUri, Number(ss58Format)).address : null;
-  const royaltyOptional = royalty ? royalty.toString() : null;
-
-  const actualOwnerUri = ownerUri ? ownerUri : issuerUri;
-  const actualOwnerAddress = ownerUri ? owner : issuer.address;
-
-  const collectionOpt = await getCollection(api, collectionId);
-
-  const tx = api.tx.rmrkCore.mintNft(
-    owner,
-    collectionId,
-    recipient,
-    royaltyOptional,
-    metadata,
-    transferable,
-    resources as any,
-  );
-
-  const events = await executeTransaction(api, issuer, tx);
-  const nftResult = extractRmrkCoreTxResult(events, 'NftMinted', (data) => {
-    return parseInt(data[2].toString(), 10);
-  });
-
-  expect(nftResult.success, 'Error: Unable to mint NFT').to.be.true;
-
-  const newCollectionNftsCount = (await getCollection(api, collectionId))
-    .unwrap()
-    .nftsCount
-    .toNumber();
-
-  const oldCollectionNftsCount = collectionOpt
-    .unwrap()
-    .nftsCount.toNumber();
-
-  expect(newCollectionNftsCount, 'Error: NFTs count should increase')
-    .to.be.equal(oldCollectionNftsCount + 1);
-
-  nftId = nftResult.successData!;
-
-  const nftOption = await getNft(api, collectionId, nftId);
-
-  expect(nftOption.isSome, 'Error: Unable to fetch created NFT').to.be.true;
-
-  const nft = nftOption.unwrap();
-
-  expect(nft.owner.isAccountId, 'Error: NFT owner should be some user').to.be.true;
-  expect(nft.owner.asAccountId.toString()).to.be.equal(actualOwnerAddress, 'Error: Invalid NFT owner');
-
-  const isOwnedInUniques = await isNftOwnedBy(api, actualOwnerUri, collectionId, nftId);
-  expect(isOwnedInUniques, `Error: created NFT is not actually owned by ${ownerUri}`)
-    .to.be.true;
-
-  if (recipient === null && royalty === null) {
-    expect(nft.royalty.isNone, 'Error: Invalid NFT recipient')
-      .to.be.true;
-  } else {
-    expect(nft.royalty.isSome, 'Error: NFT royalty not found')
-      .to.be.true;
-
-    const nftRoyalty = nft.royalty.unwrap();
-    expect(nftRoyalty.recipient.eq(recipient), 'Error: Invalid NFT recipient')
-      .to.be.true;
-
-    expect(nftRoyalty.amount.eq(royalty), 'Error: Invalid NFT royalty')
-      .to.be.true;
-  }
-
-  expect(nft.metadata.toUtf8()).to.be.equal(metadata, 'Error: Invalid NFT metadata');
-    
-  const nftResources = await getResources(api, collectionId, nftId);
-  if (resources == null) {
-    expect(nftResources, 'Error: Invalid NFT resources').to.be.empty;
-  } else {
-    expect(nftResources.length).to.be.equal(resources.length);
-
-    for (let i = 0; i < resources.length; i++) {
-      let successFindingResource = false;
-      const resource = resources[i];
-      // try to find the matching resource from the query
-      for (let j = 0; j < nftResources.length && !successFindingResource; j++) {
-        const nftResourceData = nftResources[j].toHuman();
-        expect(
-          Object.prototype.hasOwnProperty.call(nftResourceData, 'resource'),
-          `Error: Corrupted resource data on resource #${i}`,
-        ).to.be.true;
-        const nftResource = nftResourceData.resource!;
-                type NftResourceKey = keyof typeof nftResource;
-
-                let typedResource = null;
-                let typedNftResource = null;
-
-                if (resource.basic && Object.prototype.hasOwnProperty.call(nftResource, 'Basic')) {
-                  typedResource = resource.basic!;
-                  typedNftResource = nftResource['Basic' as NftResourceKey]!;
-                } else if (resource.composable && Object.prototype.hasOwnProperty.call(nftResource, 'Composable')) {
-                  typedResource = resource.composable!;
-                  typedNftResource = nftResource['Composable' as NftResourceKey]! as any;
-                  if (typedResource.parts != undefined && typedResource.parts.toString() != typedNftResource.parts.toString()
-                        || typedResource.base != typedNftResource.base && typedResource.base != undefined) {
-                    continue;
-                  }
-                } else if (resource.slot && Object.prototype.hasOwnProperty.call(nftResource, 'Slot')) {
-                  typedResource = resource.slot!;
-                  typedNftResource = nftResource['Slot' as NftResourceKey]! as any;
-                  if (typedResource.slot != typedNftResource.slot && typedResource.slot != undefined 
-                        || typedResource.base != typedNftResource.base && typedResource.base != undefined) {
-                    continue;
-                  }
-                } else {
-                  continue;
-                }
-
-                if (typedResource.src != typedNftResource.src 
-                    || typedResource.metadata != typedNftResource.metadata 
-                    || typedResource.thumb != typedNftResource.thumb
-                    || typedResource.license != typedNftResource.license
-                ) {
-                  continue;
-                }
-
-                // do final checks since this is now established to be the resource we seek
-                expect(nftResourceData.pending, `Error: Resource #${i} is pending`).to.be.false;
-                expect(nftResourceData.pendingRemoval, `Error: Resource #${i} is pending removal`).to.be.false;
-
-                // remove the matching resource from the resources we check
-                nftResources.splice(j, 1);
-                successFindingResource = true;
-      }
-
-      expect(successFindingResource, `Error: Couldn't find resource #${i}'s counterpart among the returned`).to.be.true;
-    }
-  }
-
-  return nftId;
-}
-
-export async function sendNft(
-  api: ApiPromise,
-  expectedStatus: 'pending' | 'sent',
-  originalOwnerUri: string,
-  collectionId: number,
-  nftId: number,
-  newOwner: string | NftIdTuple,
-) {
-  const ss58Format = api.registry.getChainProperties()!.toJSON().ss58Format;
-  const originalOwner = privateKey(originalOwnerUri, Number(ss58Format));
-  const newOwnerObj = makeNftOwner(api, newOwner);
-
-  const nftBeforeSendingOpt = await getNft(api, collectionId, nftId);
-
-  const tx = api.tx.rmrkCore.send(collectionId, nftId, newOwnerObj);
-  const events = await executeTransaction(api, originalOwner, tx);
-
-  const sendResult = extractRmrkCoreTxResult(events, 'NFTSent', (data) => {
-    return {
-      dstOwner: data[1] as NftOwner,
-      collectionId: parseInt(data[2].toString(), 10),
-      nftId: parseInt(data[3].toString(), 10),
-    };
-  });
-
-  expect(sendResult.success, 'Error: Unable to send NFT').to.be.true;
-  const sendData = sendResult.successData!;
-
-  expect(sendData.dstOwner.eq(newOwnerObj), 'Error: Invalid target user (from event data)')
-    .to.be.true;
-
-  expect(sendData.collectionId)
-    .to.be.equal(collectionId, 'Error: Invalid collection ID (from event data)');
-
-  expect(sendData.nftId).to.be.equal(nftId, 'Error: Invalid NFT ID (from event data)');
-
-  expect(nftBeforeSendingOpt.isSome, 'Error: Unable to fetch NFT before sending').to.be.true;
-
-  const nftBeforeSending = nftBeforeSendingOpt.unwrap();
-
-  const nftAfterSendingOpt = await getNft(api, collectionId, nftId);
-
-  expect(nftAfterSendingOpt.isSome, 'Error: Unable to fetch NFT after sending').to.be.true;
-
-  const nftAfterSending = nftAfterSendingOpt.unwrap();
-
-  const isOwnedByNewOwner = await isNftOwnedBy(api, newOwner, collectionId, nftId);
-  const isPending = expectedStatus === 'pending';
-
-  expect(
-    isOwnedByNewOwner,
-    `Error: The NFT should be owned by ${newOwner.toString()}`,
-  ).to.be.true;
-
-  expect(nftAfterSending.royalty.eq(nftBeforeSending.royalty), 'Error: Invalid NFT royalty after sending')
-    .to.be.true;
-
-  expect(nftAfterSending.metadata.eq(nftBeforeSending.metadata), 'Error: Invalid NFT metadata after sending')
-    .to.be.true;
-
-  expect(nftAfterSending.equipped.eq(nftBeforeSending.equipped), 'Error: Invalid NFT equipped status after sending')
-    .to.be.true;
-
-  expect(nftAfterSending.pending.eq(isPending), 'Error: Invalid NFT pending state')
-    .to.be.true;
-}
-
-export async function acceptNft(
-  api: ApiPromise,
-  issuerUri: string,
-  collectionId: number,
-  nftId: number,
-  newOwner: string | [number, number],
-) {
-  const ss58Format = api.registry.getChainProperties()!.toJSON().ss58Format;
-  const issuer = privateKey(issuerUri, Number(ss58Format));
-  const newOwnerObj = makeNftOwner(api, newOwner);
-
-  const nftBeforeOpt = await getNft(api, collectionId, nftId);
-
-  const tx = api.tx.rmrkCore.acceptNft(collectionId, nftId, newOwnerObj);
-  const events = await executeTransaction(api, issuer, tx);
-
-  const acceptResult = extractRmrkCoreTxResult(events, 'NFTAccepted', (data) => {
-    return {
-      recipient: data[1] as NftOwner,
-      collectionId: parseInt(data[2].toString(), 10),
-      nftId: parseInt(data[3].toString(), 10),
-    };
-  });
-
-  expect(acceptResult.success, 'Error: Unable to accept NFT').to.be.true;
-  const acceptData = acceptResult.successData!;
-
-  expect(acceptData.recipient.eq(newOwnerObj), 'Error: Invalid NFT recipient (from event data)')
-    .to.be.true;
-
-  expect(acceptData.collectionId)
-    .to.be.equal(collectionId, 'Error: Invalid collection ID (from event data)');
-
-  expect(acceptData.nftId)
-    .to.be.equal(nftId, 'Error: Invalid NFT ID (from event data)');
-
-  const nftBefore = nftBeforeOpt.unwrap();
-
-  const isPendingBeforeAccept = nftBefore.pending.isTrue;
-
-  const nftAfter = (await getNft(api, collectionId, nftId)).unwrap();
-  const isPendingAfterAccept = nftAfter.pending.isTrue;
-
-  expect(isPendingBeforeAccept, 'Error: NFT should be pending to be accepted')
-    .to.be.true;
-
-  expect(isPendingAfterAccept, 'Error: NFT should NOT be pending after accept')
-    .to.be.false;
-
-  const isOwnedInUniques = await isNftOwnedBy(api, newOwner, collectionId, nftId);
-  expect(isOwnedInUniques, `Error: created NFT is not actually owned by ${newOwner.toString()}`)
-    .to.be.true;
-}
-
-export async function rejectNft(
-  api: ApiPromise,
-  issuerUri: string,
-  collectionId: number,
-  nftId: number,
-) {
-  const ss58Format = api.registry.getChainProperties()!.toJSON().ss58Format;
-  const issuer = privateKey(issuerUri, Number(ss58Format));
-  const nftBeforeOpt = await getNft(api, collectionId, nftId);
-
-  const tx = api.tx.rmrkCore.rejectNft(collectionId, nftId);
-  const events = await executeTransaction(api, issuer, tx);
-  const rejectResult = extractRmrkCoreTxResult(events, 'NFTRejected', (data) => {
-    return {
-      collectionId: parseInt(data[1].toString(), 10),
-      nftId: parseInt(data[2].toString(), 10),
-    };
-  });
-
-  const rejectData = rejectResult.successData!;
-
-  expect(rejectData.collectionId)
-    .to.be.equal(collectionId, 'Error: Invalid collection ID (from event data)');
-
-  expect(rejectData.nftId)
-    .to.be.equal(nftId, 'Error: Invalid NFT ID (from event data)');
-
-  const nftBefore = nftBeforeOpt.unwrap();
-
-  const isPendingBeforeReject = nftBefore.pending.isTrue;
-
-  const nftAfter = await getNft(api, collectionId, nftId);
-
-  expect(isPendingBeforeReject, 'Error: NFT should be pending to be rejected')
-    .to.be.true;
-
-  expect(nftAfter.isNone, 'Error: NFT should be burned after reject')
-    .to.be.true;
-}
-
-export async function createBase(
-  api: ApiPromise,
-  issuerUri: string,
-  baseType: string,
-  symbol: string,
-  parts: object[],
-): Promise<number> {
-  let baseId = 0;
-  const ss58Format = api.registry.getChainProperties()!.toJSON().ss58Format;
-  const issuer = privateKey(issuerUri, Number(ss58Format));
-
-  const partTypes = api.createType('Vec<RmrkTraitsPartPartType>', parts) as Vec<PartType>;
-
-  const tx = api.tx.rmrkEquip.createBase(baseType, symbol, partTypes);
-  const events = await executeTransaction(api, issuer, tx);
-
-  const baseResult = extractRmrkEquipTxResult(events, 'BaseCreated', (data) => {
-    return parseInt(data[1].toString(), 10);
-  });
-
-  expect(baseResult.success, 'Error: Unable to create Base')
-    .to.be.true;
-
-  baseId = baseResult.successData!;
-  const baseOptional = await getBase(api, baseId);
-
-  expect(baseOptional.isSome, 'Error: Unable to fetch created Base')
-    .to.be.true;
-
-  const base = baseOptional.unwrap();
-  const baseParts = await getParts(api, baseId);
-
-  expect(base.issuer.toString()).to.be.equal(issuer.address, 'Error: Invalid Base issuer');
-  expect(base.baseType.toUtf8()).to.be.equal(baseType, 'Error: Invalid Base type');
-  expect(base.symbol.toUtf8()).to.be.equal(symbol, 'Error: Invalid Base symbol');
-  expect(partTypes.eq(baseParts), 'Error: Received invalid base parts').to.be.true;
-
-  return baseId;
-}
-
-export async function setResourcePriorities(
-  api: ApiPromise,
-  issuerUri: string,
-  collectionId: number,
-  nftId: number,
-  priorities: number[],
-) {
-  const ss58Format = api.registry.getChainProperties()!.toJSON().ss58Format;
-  const issuer = privateKey(issuerUri, Number(ss58Format));
-
-  const prioritiesVec = api.createType('Vec<u32>', priorities);
-  const tx = api.tx.rmrkCore.setPriority(collectionId, nftId, prioritiesVec);
-  const events = await executeTransaction(api, issuer, tx);
-
-  const prioResult = extractRmrkCoreTxResult(events, 'PrioritySet', (data) => {
-    return {
-      collectionId: parseInt(data[0].toString(), 10),
-      nftId: parseInt(data[1].toString(), 10),
-    };
-  });
-
-  expect(prioResult.success, 'Error: Unable to set resource priorities').to.be.true;
-  const eventData = prioResult.successData!;
-
-  expect(eventData.collectionId)
-    .to.be.equal(collectionId, 'Error: Invalid collection ID (set priorities event data)');
-
-  expect(eventData.nftId).to.be.equal(nftId, 'Error: Invalid NFT ID (set priorities event data');
-
-  for (let i = 0; i < priorities.length; i++) {
-    const resourceId = priorities[i];
-
-    const fetchedPrio = await getResourcePriority(api, collectionId, nftId, resourceId);
-    expect(fetchedPrio).to.be.equal(i, 'Error: Invalid priorities are set');
-  }
-
-}
-
-export async function setEquippableList(
-  api: ApiPromise,
-  issuerUri: string,
-  baseId: number,
-  slotId: number,
-  equippableList: 'All' | 'Empty' | { 'Custom': number[] },
-) {
-  const ss58Format = api.registry.getChainProperties()!.toJSON().ss58Format;
-  const issuer = privateKey(issuerUri, Number(ss58Format));
-  const equippable = api.createType('RmrkTraitsPartEquippableList', equippableList) as EquippableList;
-
-  const tx = api.tx.rmrkEquip.equippable(baseId, slotId, equippable);
-  const events = await executeTransaction(api, issuer, tx);
-
-  const equipListResult = extractRmrkEquipTxResult(events, 'EquippablesUpdated', (data) => {
-    return {
-      baseId: parseInt(data[0].toString(), 10),
-      slotId: parseInt(data[1].toString(), 10),
-    };
-  });
-
-  expect(equipListResult.success, 'Error: unable to update equippable list').to.be.true;
-  const updateEvent = equipListResult.successData!;
-
-  expect(updateEvent.baseId)
-    .to.be.equal(baseId, 'Error: invalid base ID from update equippable event');
-
-  expect(updateEvent.slotId)
-    .to.be.equal(slotId, 'Error: invalid base ID from update equippable event');
-
-  const fetchedEquippableList = await getEquippableList(api, baseId, slotId);
-
-  expect(fetchedEquippableList, 'Error: unable to fetch equippable list').to.be.not.null;
-  if (fetchedEquippableList) {
-    expect(fetchedEquippableList)
-      .to.be.deep.equal(equippableList, 'Error: invalid equippable list was set');
-  }
-}
-
-export async function addTheme(
-  api: ApiPromise,
-  issuerUri: string,
-  baseId: number,
-  themeObj: object,
-  filterKeys: string[] | null = null,
-) {
-  const ss58Format = api.registry.getChainProperties()!.toJSON().ss58Format;
-  const issuer = privateKey(issuerUri, Number(ss58Format));
-  const theme = api.createType('RmrkTraitsTheme', themeObj) as Theme;
-
-  const tx = api.tx.rmrkEquip.themeAdd(baseId, theme);
-  const events = await executeTransaction(api, issuer, tx);
-
-  expect(isTxResultSuccess(events), 'Error: Unable to add Theme').to.be.true;
-
-  const fetchedThemeOpt = await getTheme(api, baseId, theme.name.toUtf8(), null);
-
-  expect(fetchedThemeOpt.isSome, 'Error: Unable to fetch theme').to.be.true;
-
-  const fetchedTheme = fetchedThemeOpt.unwrap();
-
-  expect(theme.name.eq(fetchedTheme.name), 'Error: Invalid theme name').to.be.true;
-
-  for (let i = 0; i < theme.properties.length; i++) {
-    const property = theme.properties[i];
-    const propertyKey = property.key.toUtf8();
-
-    const propertyFoundCount = fetchedTheme.properties.filter((fetchedProp) => property.key.eq(fetchedProp.key)).length;
-
-    expect(propertyFoundCount > 1, `Error: Too many properties with key ${propertyKey} found`)
-      .to.be.false;
-
-    if (filterKeys) {
-      const isFiltered = fetchedTheme.properties.find((fetchedProp) => fetchedProp.key.eq(property.key)) === undefined;
-
-      if (isFiltered) {
-        expect(propertyFoundCount === 0, `Error: Unexpected filtered key ${propertyKey}`)
-          .to.be.true;
-        continue;
-      }
-    }
-
-    expect(propertyFoundCount === 1, `Error: The property with key ${propertyKey} is not found`)
-      .to.be.true;
-  }
-}
-
-export async function lockCollection(
-  api: ApiPromise,
-  issuerUri: string,
-  collectionId: number,
-  max = 0,
-) {
-  const ss58Format = api.registry.getChainProperties()!.toJSON().ss58Format;
-  const issuer = privateKey(issuerUri, Number(ss58Format));
-  const tx = api.tx.rmrkCore.lockCollection(collectionId);
-  const events = await executeTransaction(api, issuer, tx);
-  const lockResult = extractRmrkCoreTxResult(events, 'CollectionLocked', (data) => {
-    return parseInt(data[1].toString(), 10);
-  });
-  expect(lockResult.success, 'Error: Unable to lock a collection').to.be.true;
-  expect(lockResult.successData!, 'Error: Invalid collection was locked')
-    .to.be.eq(collectionId);
-
-  await getCollection(api, collectionId).then((collectionOption) => {
-    const collection = collectionOption.unwrap();
-    expect(collection.max.unwrap().toNumber()).to.be.equal(max);
-  });
-}
-
-export async function setPropertyCollection(
-  api: ApiPromise,
-  issuerUri: string,
-  collectionId: number,
-  key: string,
-  value: string,
-) {
-  const ss58Format = api.registry.getChainProperties()!.toJSON().ss58Format;
-  const alice = privateKey(issuerUri, Number(ss58Format));
-
-  const tx = api.tx.rmrkCore.setProperty(collectionId, null, key, value);
-  const events = await executeTransaction(api, alice, tx);
-  const propResult = extractRmrkCoreTxResult(events, 'PropertySet', (data) => {
-    return {
-      collectionId: parseInt(data[0].toString(), 10),
-      nftId: data[1] as Option<u32>,
-      key: data[2] as Bytes,
-      value: data[3] as Bytes,
-    };
-  });
-
-  expect(propResult.success, 'Error: Unable to set collection property').to.be.true;
-  const eventData = propResult.successData!;
-  const eventDescription = 'from set collection property event';
-
-  expect(eventData.collectionId, 'Error: Invalid collection ID ' + eventDescription)
-    .to.be.equal(collectionId);
-
-  expect(eventData.nftId.eq(null), 'Error: Unexpected NFT ID ' + eventDescription)
-    .to.be.true;
-
-  expect(eventData.key.eq(key), 'Error: Invalid property key ' + eventDescription)
-    .to.be.true;
-
-  expect(eventData.value.eq(value), 'Error: Invalid property value ' + eventDescription)
-    .to.be.true;
-
-  expect(await isCollectionPropertyExists(api, collectionId, key, value))
-    .to.be.true;
-}
-
-export async function burnNft(
-  api: ApiPromise,
-  issuerUri: string,
-  collectionId: number,
-  nftId: number,
-) {
-  const ss58Format = api.registry.getChainProperties()!.toJSON().ss58Format;
-  const issuer = privateKey(issuerUri, Number(ss58Format));
-  const maxBurns = 10;
-  const tx = api.tx.rmrkCore.burnNft(collectionId, nftId, maxBurns);
-  const events = await executeTransaction(api, issuer, tx);
-  const burnResult = extractRmrkCoreTxResult(events, 'NFTBurned', (data) => {
-    return parseInt(data[1].toString(), 10);
-  });
-
-  expect(burnResult.success, 'Error: Unable to burn an NFT').to.be.true;
-  expect(burnResult.successData!, 'Error: Invalid NFT was burned')
-    .to.be.eq(nftId);
-
-  const nftBurned = await getNft(api, collectionId, nftId);
-  expect(nftBurned.isSome).to.be.false;
-}
-
-export async function acceptNftResource(
-  api: ApiPromise,
-  issuerUri: string,
-  collectionId: number,
-  nftId: number,
-  resourceId: number,
-) {
-  const ss58Format = api.registry.getChainProperties()!.toJSON().ss58Format;
-  const issuer = privateKey(issuerUri, Number(ss58Format));
-
-  const tx = api.tx.rmrkCore.acceptResource(
-    collectionId,
-    nftId,
-    resourceId,
-  );
-
-  const events = await executeTransaction(api, issuer, tx);
-  const acceptResult = extractRmrkCoreTxResult(events, 'ResourceAccepted', (data) => {
-    return {
-      nftId: parseInt(data[0].toString(), 10),
-      resourceId: parseInt(data[1].toString(), 10),
-    };
-  });
-
-  expect(acceptResult.success, 'Error: Unable to accept a resource').to.be.true;
-  expect(acceptResult.successData!.nftId, 'Error: Invalid NFT ID while accepting a resource')
-    .to.be.eq(nftId);
-  expect(acceptResult.successData!.resourceId, 'Error: Invalid resource ID while accepting a resource')
-    .to.be.eq(resourceId);
-
-  const resource = await getResourceById(api, collectionId, nftId, resourceId);
-  checkResourceStatus(resource, 'added');
-}
-
-async function executeResourceCreation(
-  api: ApiPromise,
-  issuer: IKeyringPair,
-  tx: any,
-  collectionId: number,
-  nftId: number,
-  expectedStatus: 'pending' | 'added',
-): Promise<ResourceInfo> {
-  const events = await executeTransaction(api, issuer, tx);
-
-  const resourceResult = extractRmrkCoreTxResult(events, 'ResourceAdded', (data) => {
-    return parseInt(data[1].toString(), 10);
-  });
-  expect(resourceResult.success, 'Error: Unable to add resource').to.be.true;
-  const resourceId = resourceResult.successData!;
-
-  const resource = await getResourceById(api, collectionId, nftId, resourceId);
-  checkResourceStatus(resource, expectedStatus);
-
-  return resource;
-}
-
-export async function addNftBasicResource(
-  api: ApiPromise,
-  issuerUri: string,
-  expectedStatus: 'pending' | 'added',
-  collectionId: number,
-  nftId: number,
-  src: string | null,
-  metadata: string | null,
-  license: string | null,
-  thumb: string | null,
-): Promise<number> {
-  const ss58Format = api.registry.getChainProperties()!.toJSON().ss58Format;
-  const issuer = privateKey(issuerUri, Number(ss58Format));
-
-  const basicResource = api.createType('RmrkTraitsResourceBasicResource', {
-    src: src,
-    metadata: metadata,
-    license: license,
-    thumb: thumb,
-  }) as BasicResource;
-
-  const tx = api.tx.rmrkCore.addBasicResource(
-    collectionId,
-    nftId,
-    basicResource,
-  );
-
-  const resource = await executeResourceCreation(api, issuer, tx, collectionId, nftId, expectedStatus);
-
-  // FIXME A workaround. It seems it is a PolkadotJS bug.
-  // All of the following are `false`.
-  //
-  // console.log('>>> basic:', resource.resource.isBasic);
-  // console.log('>>> composable:', resource.resource.isComposable);
-  // console.log('>>> slot:', resource.resource.isSlot);
-  const resourceJson = resource.resource.toHuman() as any;
-
-  expect(Object.prototype.hasOwnProperty.call(resourceJson, 'Basic'), 'Error: Expected basic resource type')
-    .to.be.true;
-
-  const recvBasicRes = resourceJson['Basic'];
-
-  expect(recvBasicRes.src, 'Error: Invalid basic resource src')
-    .to.be.eq(src);
-  expect(recvBasicRes.metadata, 'Error: basic first resource metadata')
-    .to.be.eq(metadata);
-  expect(recvBasicRes.license, 'Error: basic first resource license')
-    .to.be.eq(license);
-  expect(recvBasicRes.thumb, 'Error: basic first resource thumb')
-    .to.be.eq(thumb);
-
-  return resource.id.toNumber();
-}
-
-export async function addNftComposableResource(
-  api: ApiPromise,
-  issuerUri: string,
-  expectedStatus: 'pending' | 'added',
-  collectionId: number,
-  nftId: number,
-  parts: number[],
-  baseId: number,
-  src: string | null,
-  metadata: string | null,
-  license: string | null,
-  thumb: string | null,
-): Promise<number> {
-  const ss58Format = api.registry.getChainProperties()!.toJSON().ss58Format;
-  const issuer = privateKey(issuerUri, Number(ss58Format));
-
-  const composableResource = api.createType('RmrkTraitsResourceComposableResource', {
-    parts: parts, // api.createType('Vec<u32>', parts),
-    base: baseId,
-    src: src,
-    metadata: metadata,
-    license: license,
-    thumb: thumb,
-  }) as ComposableResource;
-
-  const tx = api.tx.rmrkCore.addComposableResource(
-    collectionId,
-    nftId,
-    composableResource,
-  );
-
-  const resource = await executeResourceCreation(api, issuer, tx, collectionId, nftId, expectedStatus);
-
-  // FIXME A workaround. It seems it is a PolkadotJS bug.
-  // All of the following are `false`.
-  //
-  // console.log('>>> basic:', resource.resource.isBasic);
-  // console.log('>>> composable:', resource.resource.isComposable);
-  // console.log('>>> slot:', resource.resource.isSlot);
-  const resourceJson = resource.resource.toHuman() as any;
-
-  expect(Object.prototype.hasOwnProperty.call(resourceJson, 'Composable'), 'Error: Expected composable resource type')
-    .to.be.true;
-
-  const recvComposableRes = resourceJson['Composable'];
-
-  expect(recvComposableRes.parts.toString(), 'Error: Invalid composable resource parts')
-    .to.be.eq(parts.toString());
-  expect(recvComposableRes.base, 'Error: Invalid composable resource base id')
-    .to.be.eq(baseId.toString());
-  expect(recvComposableRes.src, 'Error: Invalid composable resource src')
-    .to.be.eq(src);
-  expect(recvComposableRes.metadata, 'Error: Invalid composable resource metadata')
-    .to.be.eq(metadata);
-  expect(recvComposableRes.license, 'Error: Invalid composable resource license')
-    .to.be.eq(license);
-  expect(recvComposableRes.thumb, 'Error: Invalid composable resource thumb')
-    .to.be.eq(thumb);
-
-  return resource.id.toNumber();
-}
-
-export async function addNftSlotResource(
-  api: ApiPromise,
-  issuerUri: string,
-  expectedStatus: 'pending' | 'added',
-  collectionId: number,
-  nftId: number,
-  baseId: number,
-  slotId: number,
-  src: string | null,
-  metadata: string | null,
-  license: string | null,
-  thumb: string | null,
-): Promise<number>  {
-  const ss58Format = api.registry.getChainProperties()!.toJSON().ss58Format;
-  const issuer = privateKey(issuerUri, Number(ss58Format));
-
-  const slotResource = api.createType('RmrkTraitsResourceSlotResource', {
-    base: baseId,
-    src: src,
-    metadata,
-    slot: slotId,
-    license: license,
-    thumb: thumb,
-  }) as SlotResource;
-
-  const tx = api.tx.rmrkCore.addSlotResource(
-    collectionId,
-    nftId,
-    slotResource,
-  );
-
-  const resource = await executeResourceCreation(api, issuer, tx, collectionId, nftId, expectedStatus);
-
-  // FIXME A workaround. It seems it is a PolkadotJS bug.
-  // All of the following are `false`.
-  //
-  // console.log('>>> basic:', resource.resource.isBasic);
-  // console.log('>>> composable:', resource.resource.isComposable);
-  // console.log('>>> slot:', resource.resource.isSlot);
-  const resourceJson = resource.resource.toHuman() as any;
-
-  expect(Object.prototype.hasOwnProperty.call(resourceJson, 'Slot'), 'Error: Expected slot resource type')
-    .to.be.true;
-
-  const recvSlotRes = resourceJson['Slot'];
-
-  expect(recvSlotRes.base, 'Error: Invalid slot resource base id')
-    .to.be.eq(baseId.toString());
-  expect(recvSlotRes.slot, 'Error: Invalid slot resource slot id')
-    .to.be.eq(slotId.toString());
-  expect(recvSlotRes.src, 'Error: Invalid slot resource src')
-    .to.be.eq(src);
-  expect(recvSlotRes.metadata, 'Error: Invalid slot resource metadata')
-    .to.be.eq(metadata);
-  expect(recvSlotRes.license, 'Error: Invalid slot resource license')
-    .to.be.eq(license);
-  expect(recvSlotRes.thumb, 'Error: Invalid slot resource thumb')
-    .to.be.eq(thumb);
-
-  return resource.id.toNumber();
-}
-
-export async function equipNft(
-  api: ApiPromise,
-  issuerUri: string,
-  item: NftIdTuple,
-  equipper: NftIdTuple,
-  resource: number,
-  base: number,
-  slot: number,
-) {
-  const ss58Format = api.registry.getChainProperties()!.toJSON().ss58Format;
-  const issuer = privateKey(issuerUri, Number(ss58Format));
-  const tx = api.tx.rmrkEquip.equip(item, equipper, resource, base, slot);
-  const events = await executeTransaction(api, issuer, tx);
-  const equipResult = extractRmrkEquipTxResult(events, 'SlotEquipped', (data) => {
-    return {
-      item_collection: parseInt(data[0].toString(), 10),
-      item_nft: parseInt(data[1].toString(), 10),
-      base_id: parseInt(data[2].toString(), 10),
-      slot_id: parseInt(data[3].toString(), 10),
-    };
-  });
-  expect(equipResult.success, 'Error: Unable to equip an item').to.be.true;
-  expect(equipResult.successData!.item_collection, 'Error: Invalid item collection id')
-    .to.be.eq(item[0]);
-  expect(equipResult.successData!.item_nft, 'Error: Invalid item NFT id')
-    .to.be.eq(item[1]);
-  expect(equipResult.successData!.base_id, 'Error: Invalid base id')
-    .to.be.eq(base);
-  expect(equipResult.successData!.slot_id, 'Error: Invalid slot id')
-    .to.be.eq(slot);
-}
-
-export async function unequipNft(
-  api: ApiPromise,
-  issuerUri: string,
-  item: any,
-  equipper: any,
-  resource: number,
-  base: number,
-  slot: number,
-) {
-  const ss58Format = api.registry.getChainProperties()!.toJSON().ss58Format;
-  const issuer = privateKey(issuerUri, Number(ss58Format));
-  const tx = api.tx.rmrkEquip.equip(item, equipper, resource, base, slot);
-  const events = await executeTransaction(api, issuer, tx);
-
-  const unEquipResult = extractRmrkEquipTxResult(
-    events,
-    'SlotUnequipped',
-    (data) => {
-      return {
-        item_collection: parseInt(data[0].toString(), 10),
-        item_nft: parseInt(data[1].toString(), 10),
-        base_id: parseInt(data[2].toString(), 10),
-        slot_id: parseInt(data[3].toString(), 10),
-      };
-    },
-  );
-
-  expect(unEquipResult.success, 'Error: Unable to unequip an item').to.be.true;
-  expect(unEquipResult.successData!.item_collection, 'Error: Invalid item collection id')
-    .to.be.eq(item[0]);
-  expect(unEquipResult.successData!.item_nft, 'Error: Invalid item NFT id')
-    .to.be.eq(item[1]);
-  expect(unEquipResult.successData!.base_id, 'Error: Invalid base id')
-    .to.be.eq(base);
-  expect(unEquipResult.successData!.slot_id, 'Error: Invalid slot id')
-    .to.be.eq(slot);
-}
-
-export async function removeNftResource(
-  api: ApiPromise,
-  expectedStatus: 'pending' | 'removed',
-  issuerUri: string,
-  collectionId: number,
-  nftId: number,
-  resourceId: number,
-) {
-  const ss58Format = api.registry.getChainProperties()!.toJSON().ss58Format;
-  const issuer = privateKey(issuerUri, Number(ss58Format));
-
-  const tx = api.tx.rmrkCore.removeResource(collectionId, nftId, resourceId);
-  const events = await executeTransaction(api, issuer, tx);
-  const removeResult = extractRmrkCoreTxResult(events, 'ResourceRemoval', (data) => {
-    return {
-      nftId: parseInt(data[0].toString(), 10),
-      resourceId: parseInt(data[1].toString(), 10),
-    };
-  });
-  expect(removeResult.success, 'Error: Unable to remove a resource').to.be.true;
-  expect(removeResult.successData!.nftId, 'Error: Invalid NFT Id while removing a resource')
-    .to.be.eq(nftId);
-  expect(removeResult.successData!.resourceId, 'Error: Invalid resource Id while removing a resource')
-    .to.be.eq(resourceId);
-
-  const afterDeleting = await findResourceById(api, collectionId, nftId, resourceId);
-
-  if (expectedStatus === 'pending') {
-    expect(afterDeleting).not.to.be.null;
-    expect(afterDeleting?.pendingRemoval.isTrue).to.be.equal(true);
-  } else {
-    expect(afterDeleting).to.be.null;
-  }
-}
-
-export async function acceptResourceRemoval(
-  api: ApiPromise,
-  issuerUri: string,
-  collectionId: number,
-  nftId: number,
-  resourceId: number,
-) {
-  const ss58Format = api.registry.getChainProperties()!.toJSON().ss58Format;
-  const issuer = privateKey(issuerUri, Number(ss58Format));
-
-  const tx = api.tx.rmrkCore.acceptResourceRemoval(collectionId, nftId, resourceId);
-  const events = await executeTransaction(api, issuer, tx);
-  const acceptResult = extractRmrkCoreTxResult(events, 'ResourceRemovalAccepted', (data) => {
-    return {
-      nftId: parseInt(data[0].toString(), 10),
-      resourceId: parseInt(data[1].toString(), 10),
-    };
-  });
-  expect(acceptResult.success, 'Error: Unable to accept a resource').to.be.true;
-  expect(acceptResult.successData!.nftId, 'Error: Invalid NFT Id while accepting a resource')
-    .to.be.eq(nftId);
-  expect(acceptResult.successData!.resourceId, 'Error: Invalid resource Id while accepting a resource')
-    .to.be.eq(resourceId);
-
-  const afterDeleting = await findResourceById(api, collectionId, nftId, resourceId);
-  expect(afterDeleting, 'Error: resource deleting failed').to.be.null;
-}
deletedtests/src/substrate/get-balance.tsdiffbeforeafterboth
--- a/tests/src/substrate/get-balance.ts
+++ /dev/null
@@ -1,40 +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 {ApiPromise} from '@polkadot/api';
-import {AccountInfo} from '@polkadot/types/interfaces/system';
-import promisifySubstrate from './promisify-substrate';
-import {IKeyringPair} from '@polkadot/types/types';
-import {submitTransactionAsync} from './substrate-api';
-import {getGenericResult} from '../deprecated-helpers/helpers';
-import {expect} from 'chai';
-
-export default async function getBalance(api: ApiPromise, accounts: string[]): Promise<Array<bigint>> {
-  const balance = promisifySubstrate(api, (acc: string[]) => api.query.system.account.multi(acc));
-  const responce = await balance(accounts) as unknown as AccountInfo[];
-  return responce.map((r) => r.data.free.toBigInt().valueOf());
-}
-
-export async function getBalanceSingle(api: ApiPromise, account: string): Promise<bigint> {
-  return (await getBalance(api, [account]))[0];
-}
-
-export async function transferBalanceExpectSuccess(api: ApiPromise, from: IKeyringPair, to: string, amount: bigint | string) {
-  const tx = api.tx.balances.transfer(to, amount);
-  const events = await submitTransactionAsync(from, tx);
-  const result = getGenericResult(events);
-  expect(result.success).to.be.true;
-}
deletedtests/src/substrate/privateKey.tsdiffbeforeafterboth
--- a/tests/src/substrate/privateKey.ts
+++ /dev/null
@@ -1,26 +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 {Keyring} from '@polkadot/api';
-import {IKeyringPair} from '@polkadot/types/types';
-
-// WARNING: the WASM interface must be initialized before this function is called. 
-// Use either `usingApi`, or `cryptoWaitReady` for consistency.
-export default function privateKey(account: string, ss58Format?: number): IKeyringPair {
-  const keyring = new Keyring({ss58Format, type: 'sr25519'});
-
-  return keyring.addFromUri(account);
-}
deletedtests/src/substrate/promisify-substrate.tsdiffbeforeafterboth
--- a/tests/src/substrate/promisify-substrate.ts
+++ /dev/null
@@ -1,50 +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 {ApiPromise} from '@polkadot/api';
-
-type PromiseType<T> = T extends PromiseLike<infer TInner> ? TInner : T;
-
-export default function promisifySubstrate<T extends (...args: any[]) => any>(api: ApiPromise, action: T): (...args: Parameters<T>) => Promise<PromiseType<ReturnType<T>>> {
-  return (...args: Parameters<T>) => {
-    const promise = new Promise<PromiseType<ReturnType<T>>>((resolve: ((result: PromiseType<ReturnType<T>>) => void) | undefined, reject: ((error: any) => void) | undefined) => {
-      const cleanup = () => {
-        api.off('disconnected', fail);
-        api.off('error', fail);
-        resolve = undefined;
-        reject = undefined;
-      };
-
-      const success = (r: any) => {
-        resolve && resolve(r);
-        cleanup();
-      };
-      const fail = (error: any) => {
-        reject && reject(error);
-        cleanup();
-      };
-
-      api.on('disconnected', fail);
-      api.on('error', fail);
-
-      const result = action(...args);
-      Promise.resolve(result)
-        .then(success, fail);
-
-    });
-    return promise as any;
-  };
-}
deletedtests/src/substrate/substrate-api.tsdiffbeforeafterboth
--- a/tests/src/substrate/substrate-api.ts
+++ /dev/null
@@ -1,226 +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 {ApiPromise, WsProvider} from '@polkadot/api';
-import {ApiOptions, ApiTypes, SubmittableExtrinsic} from '@polkadot/api/types';
-import {ExtrinsicStatus} from '@polkadot/types/interfaces/author/types';
-import {EventRecord} from '@polkadot/types/interfaces/system/types';
-import {IKeyringPair} from '@polkadot/types/types';
-import config from '../config';
-import '../interfaces/augment-api-events';
-import * as defs from '../interfaces/definitions';
-import privateKey from './privateKey';
-import promisifySubstrate from './promisify-substrate';
-
-import {SilentConsole} from '../util/playgrounds/unique.dev';
-
-
-
-function defaultApiOptions(): ApiOptions {
-  const wsProvider = new WsProvider(config.substrateUrl);
-  return {
-    provider: wsProvider, signedExtensions: {
-      ContractHelpers: {
-        extrinsic: {},
-        payload: {},
-      },
-      CheckMaintenance: {
-        extrinsic: {},
-        payload: {},
-      },
-      FakeTransactionFinalizer: {
-        extrinsic: {},
-        payload: {},
-      },
-    },
-    rpc: {
-      unique: defs.unique.rpc,
-      appPromotion: defs.appPromotion.rpc,
-      rmrk: defs.rmrk.rpc,
-      eth: {
-        feeHistory: {
-          description: 'Dummy',
-          params: [],
-          type: 'u8',
-        },
-        maxPriorityFeePerGas: {
-          description: 'Dummy',
-          params: [],
-          type: 'u8',
-        },
-      },
-    },
-  };
-}
-
-export async function getApiConnection(settings: ApiOptions | undefined = undefined): Promise<ApiPromise> {
-  settings = settings || defaultApiOptions();
-  const api = new ApiPromise(settings);
-
-  if (api) {
-    await api.isReadyOrError;
-  }
-
-  return api;
-}
-
-export default async function usingApi<T = void>(action: (api: ApiPromise, privateKeyWrapper: (account: string) => IKeyringPair) => Promise<T>, settings: ApiOptions | undefined = undefined): Promise<T> {
-  settings = settings || defaultApiOptions();
-  const api: ApiPromise = new ApiPromise(settings);
-  let result: T = null as unknown as T;
-
-  const silentConsole = new SilentConsole();
-  silentConsole.enable();
-
-  try {
-    await promisifySubstrate(api, async () => {
-      if (api) {
-        await api.isReadyOrError;
-        const ss58Format = (api.registry.getChainProperties())!.toJSON().ss58Format;
-        const privateKeyWrapper = (account: string) => privateKey(account, Number(ss58Format));
-        result = await action(api, privateKeyWrapper);
-      }
-    })();
-  } finally {
-    await api.disconnect();
-    silentConsole.disable();
-  }
-  return result as T;
-}
-
-enum TransactionStatus {
-  Success,
-  Fail,
-  NotReady
-}
-
-function getTransactionStatus(events: EventRecord[], status: ExtrinsicStatus): TransactionStatus {
-  if (status.isReady) {
-    return TransactionStatus.NotReady;
-  }
-  if (status.isBroadcast) {
-    return TransactionStatus.NotReady;
-  }
-  if (status.isRetracted) {
-    return TransactionStatus.NotReady;
-  }
-  if (status.isInBlock || status.isFinalized) {
-    if(events.filter(e => e.event.data.method === 'ExtrinsicFailed').length > 0) {
-      return TransactionStatus.Fail;
-    }
-    if(events.filter(e => e.event.data.method === 'ExtrinsicSuccess').length > 0) {
-      return TransactionStatus.Success;
-    }
-  }
-
-  return TransactionStatus.Fail;
-}
-
-export function executeTransaction(api: ApiPromise, sender: IKeyringPair, transaction: SubmittableExtrinsic<'promise'>): Promise<EventRecord[]> {
-  return new Promise(async (res, rej) => {
-    try {
-      await transaction.signAndSend(sender, ({events, status}) => {
-        if (!status.isInBlock && !status.isFinalized) return;
-        for (const {event} of events) {
-          if (api.events.system.ExtrinsicSuccess.is(event)) {
-            res(events);
-          } else if (api.events.system.ExtrinsicFailed.is(event)) {
-            const {data: [error]} = event;
-            if (error.isModule) {
-              const decoded = api.registry.findMetaError(error.asModule);
-              const {method, section} = decoded;
-              rej(new Error(`${section}.${method}`));
-            } else {
-              rej(new Error(error.toString()));
-            }
-          }
-        }
-      });
-    } catch (e) {
-      rej(e);
-    }
-  });
-}
-
-/**
- * @deprecated use `executeTransaction` instead
- */
-export function
-submitTransactionAsync(sender: IKeyringPair, transaction: SubmittableExtrinsic<ApiTypes>): Promise<EventRecord[]> {
-  /* eslint no-async-promise-executor: "off" */
-  return new Promise(async (resolve, reject) => {
-    try {
-      await transaction.signAndSend(sender, ({events = [], status, dispatchError}) => {
-        const transactionStatus = getTransactionStatus(events, status);
-
-        if (transactionStatus === TransactionStatus.Success) {
-          resolve(events);
-        } else if (transactionStatus === TransactionStatus.Fail) {
-          let moduleError = null;
-
-          if (dispatchError) {
-            if (dispatchError.isModule) {
-              const modErr = dispatchError.asModule;
-              const errorMeta = dispatchError.registry.findMetaError(modErr);
-
-              moduleError = JSON.stringify(errorMeta, null, 4);
-            }
-          }
-
-          console.log(`Something went wrong with transaction. Status: ${status}\nModule error: ${moduleError}`);
-          reject(events);
-        }
-      });
-    } catch (e) {
-      console.log('Error: ', e);
-      reject(e);
-    }
-  });
-}
-
-export function submitTransactionExpectFailAsync(sender: IKeyringPair, transaction: SubmittableExtrinsic<ApiTypes>): Promise<EventRecord[]> {
-  console.error = () => {};
-  console.log = () => {};
-
-  /* eslint no-async-promise-executor: "off" */
-  return new Promise<EventRecord[]>(async function(res, rej) {
-    const resolve = (rec: EventRecord[]) => {
-      setTimeout(() => {
-        res(rec);
-      });
-    };
-    const reject = (errror: any) => {
-      setTimeout(() => {
-        rej(errror);
-      });
-    };
-    try {
-      await transaction.signAndSend(sender, ({events = [], status}) => {
-        const transactionStatus = getTransactionStatus(events, status);
-
-        // console.log('transactionStatus', transactionStatus, 'events', events);
-
-        if (transactionStatus === TransactionStatus.Success) {
-          resolve(events);
-        } else if (transactionStatus === TransactionStatus.Fail) {
-          reject(events);
-        }
-      });
-    } catch (e) {
-      reject(e);
-    }
-  });
-}
deletedtests/src/substrate/wait-new-blocks.tsdiffbeforeafterboth
--- a/tests/src/substrate/wait-new-blocks.ts
+++ /dev/null
@@ -1,34 +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 {ApiPromise} from '@polkadot/api';
-
-/* eslint no-async-promise-executor: "off" */
-export default function waitNewBlocks(api: ApiPromise, blocksCount = 1): Promise<void> {
-  const promise = new Promise<void>(async (resolve) => {
-
-    const unsubscribe = await api.rpc.chain.subscribeNewHeads(() => {
-      if (blocksCount > 0) {
-        blocksCount--;
-      } else {
-        unsubscribe();
-        resolve();
-      }
-    });
-  });
-
-  return promise;
-}
modifiedtests/src/transfer.nload.tsdiffbeforeafterboth
--- a/tests/src/transfer.nload.ts
+++ b/tests/src/transfer.nload.ts
@@ -14,26 +14,26 @@
 // 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 {ApiPromise} from '@polkadot/api';
+import os from 'os';
 import {IKeyringPair} from '@polkadot/types/types';
-import usingApi, {submitTransactionAsync} from './substrate/substrate-api';
-import waitNewBlocks from './substrate/wait-new-blocks';
-import * as cluster from 'cluster';
-import os from 'os';
+import {usingPlaygrounds} from './util';
+import {UniqueHelper} from './util/playgrounds/unique';
+import * as notReallyCluster from 'cluster'; // https://github.com/nodejs/node/issues/42271#issuecomment-1063415346
+const cluster = notReallyCluster as unknown as notReallyCluster.Cluster;
 
-async function findUnusedAddress(api: ApiPromise, privateKeyWrapper: (account: string) => IKeyringPair, seedAddition = ''): Promise<IKeyringPair> {
+async function findUnusedAddress(helper: UniqueHelper, privateKey: (account: string) => Promise<IKeyringPair>, seedAddition = ''): Promise<IKeyringPair> {
   let bal = 0n;
   let unused;
   do {
     const randomSeed = 'seed' + Math.floor(Math.random() * Math.floor(10000)) + seedAddition;
-    unused = privateKeyWrapper(`//${randomSeed}`);
-    bal = (await api.query.system.account(unused.address)).data.free.toBigInt();
+    unused = await privateKey(`//${randomSeed}`);
+    bal = await helper.balance.getSubstrate(unused.address);
   } 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())));
+function findUnusedAddresses(helper: UniqueHelper, privateKey: (account: string) => Promise<IKeyringPair>, amount: number): Promise<IKeyringPair[]> {
+  return Promise.all(new Array(amount).fill(null).map(() => findUnusedAddress(helper, privateKey, '_' + Date.now())));
 }
 
 // Innacurate transfer fee
@@ -54,13 +54,13 @@
     counters = {};
 }
 
-async function distributeBalance(source: IKeyringPair, api: ApiPromise, totalAmount: bigint, stages: number) {
+async function distributeBalance(source: IKeyringPair, helper: UniqueHelper, privateKey: (account: string) => Promise<IKeyringPair>, totalAmount: bigint, stages: number) {
   const accounts = [source];
   // we don't need source in output array
   const failedAccounts = [0];
 
   const finalUserAmount = 2 ** stages - 1;
-  accounts.push(...await findUnusedAddresses(api, finalUserAmount));
+  accounts.push(...await findUnusedAddresses(helper, privateKey, finalUserAmount));
   // findUnusedAddresses produces at least 1 request per user
   increaseCounter('requests', finalUserAmount);
 
@@ -68,12 +68,12 @@
     const usersWithBalance = 2 ** stage;
     const amount = totalAmount / (2n ** BigInt(stage)) - FEE * BigInt(stage);
     // console.log(`Stage ${stage}/${stages}, ${usersWithBalance} => ${usersWithBalance * 2} = ${amount}`);
-    const txs = [];
+    const txs: Promise<boolean | void>[] = [];
     for (let i = 0; i < usersWithBalance; i++) {
       const newUser = accounts[i + usersWithBalance];
       // console.log(`${accounts[i].address} => ${newUser.address} = ${amountToSplit}`);
-      const tx = api.tx.balances.transfer(newUser.address, amount);
-      txs.push(submitTransactionAsync(accounts[i], tx).catch(() => {
+      const tx = helper.balance.transferToSubstrate(accounts[i], newUser.address, amount);
+      txs.push(tx.catch(() => {
         failedAccounts.push(i + usersWithBalance);
         increaseCounter('txFailed', 1);
       }));
@@ -90,7 +90,7 @@
 
 if (cluster.isMaster) {
   let testDone = false;
-  usingApi(async (api) => {
+  usingPlaygrounds(async (helper) => {
     const prevCounters: { [key: string]: number } = {};
     while (!testDone) {
       for (const name in counters) {
@@ -103,18 +103,17 @@
         console.log(`${name.padEnd(15)} = ${counters[name] - prevCounters[name]}`);
         prevCounters[name] = counters[name];
       }
-      await waitNewBlocks(api, 1);
+      await helper.wait.newBlocks(1);
     }
   });
   const waiting: Promise<void>[] = [];
   console.log(`Starting ${os.cpus().length} workers`);
-  usingApi(async (api, privateKeyWrapper) => {
-    const alice = privateKeyWrapper('//Alice');
+  usingPlaygrounds(async (helper, privateKey) => {
+    const alice = await privateKey('//Alice');
     for (const id in os.cpus()) {
       const WORKER_NAME = `//LoadWorker${id}_${Date.now()}`;
-      const workerAccount = privateKeyWrapper(WORKER_NAME);
-      const tx = api.tx.balances.transfer(workerAccount.address, 400n * 10n ** 23n);
-      await submitTransactionAsync(alice, tx);
+      const workerAccount = await privateKey(WORKER_NAME);
+      await helper.balance.transferToSubstrate(alice, workerAccount.address, 400n * 10n ** 23n);
 
       const worker = cluster.fork({
         WORKER_NAME,
@@ -132,8 +131,8 @@
   });
 } else {
   increaseCounter('startedWorkers', 1);
-  usingApi(async (api, privateKeyWrapper) => {
-    await distributeBalance(privateKeyWrapper(process.env.WORKER_NAME as string), api, 400n * 10n ** 22n, 10);
+  usingPlaygrounds(async (helper, privateKey) => {
+    await distributeBalance(await privateKey(process.env.WORKER_NAME as string), helper, privateKey, 400n * 10n ** 22n, 10);
   });
   const interval = setInterval(() => {
     flushCounterToMaster();