git.delta.rocks / unique-network / refs/commits / 6360d02576ab

--- a/.docker/xcm-config/launch-config-xcm-unique-rococo.json
+++ b/.docker/xcm-config/launch-config-xcm-unique-rococo.json
@@ -90,8 +90,8 @@
                     "rpcPort": 9933,
                     "name": "alice",
                     "flags": [
-			"-lruntime=trace",
-			"-lxcm=trace",
+			            "-lruntime=trace",
+			            "-lxcm=trace",
                         "--unsafe-rpc-external",
                         "--unsafe-ws-external"
 		    ]
@@ -114,8 +114,8 @@
                     "port": 31202,
                     "name": "alice",
                     "flags": [
-			"-lruntime=trace",
-			"-lxcm=trace",
+			            "-lruntime=trace",
+			            "-lxcm=trace",
                         "--unsafe-rpc-external",
                         "--unsafe-ws-external"
 		    ]
@@ -133,11 +133,11 @@
                     "port": 31203,
                     "name": "alice",
                     "flags": [
-			"-lruntime=trace",
-			"-lxcm=trace",
+			            "-lruntime=trace",
+			            "-lxcm=trace",
                         "--unsafe-rpc-external",
                         "--unsafe-ws-external",
-  			"--",
+  			            "--",
                         "--execution=wasm"
                     ]
                 }
@@ -154,8 +154,8 @@
                     "port": 31204,
                     "name": "alice",
                     "flags": [
-			"-lruntime=trace",
-			"-lxcm=trace",
+			            "-lruntime=trace",
+			            "-lxcm=trace",
                         "--unsafe-rpc-external",
                         "--unsafe-ws-external"
 		    ]

--- a/.env
+++ b/.env
@@ -1,5 +1,5 @@
 RUST_TOOLCHAIN=nightly-2022-07-24
-POLKADOT_BUILD_BRANCH=release-v0.9.27
+POLKADOT_BUILD_BRANCH=release-v0.9.29
 
 POLKADOT_MAINNET_BRANCH=release-v0.9.26
 UNIQUE_MAINNET_TAG=v924010
@@ -13,7 +13,7 @@
 QUARTZ_REPLICA_FROM=wss://eu-ws-quartz.unique.network:443
 UNIQUE_REPLICA_FROM=wss://eu-ws.unique.network:443
 
-POLKADOT_LAUNCH_BRANCH=feature/rewrite-chain-id-in-spec
+POLKADOT_LAUNCH_BRANCH=unique-network
 
 KARURA_BUILD_BRANCH=2.9.1
 ACALA_BUILD_BRANCH=2.9.2

--- a/.github/workflows/testnet-build.yml
+++ b/.github/workflows/testnet-build.yml
@@ -125,13 +125,10 @@
         run: docker pull uniquenetwork/builder-polkadot:${{ env.POLKADOT_BUILD_BRANCH }}           
 
       - name: Build the stack
-        run: cd .docker/ && docker build --file ./Dockerfile-testnet.${{ matrix.network }}.yml --tag uniquenetwork/${{ matrix.network }}-testnet-local:nightly-${{ steps.branchname.outputs.value }}-${{ github.sha }} --tag uniquenetwork/${{ matrix.network }}-testnet-local:latest . 
+        run: cd .docker/ && docker build --file ./Dockerfile-testnet.${{ matrix.network }}.yml --tag uniquenetwork/${{ matrix.network }}-testnet-local-nightly:nightly-${{ steps.branchname.outputs.value }}-${{ github.sha }} . 
 
       - name: Push docker version image
-        run: docker push uniquenetwork/${{ matrix.network }}-testnet-local:nightly-${{ steps.branchname.outputs.value }}-${{ github.sha }}
-
-      - name: Push docker latest image
-        run: docker push uniquenetwork/${{ matrix.network }}-testnet-local:latest
+        run: docker push uniquenetwork/${{ matrix.network }}-testnet-local-nightly:nightly-${{ steps.branchname.outputs.value }}-${{ github.sha }}
 
       - name: Clean Workspace
         if: always()

--- a/tests/src/config.ts
+++ b/tests/src/config.ts
@@ -19,6 +19,12 @@
 const config = {
   substrateUrl: process.env.substrateUrl || 'ws://127.0.0.1:9944',
   frontierUrl: process.env.frontierUrl || 'http://127.0.0.1:9933',
+  relayUrl: process.env.relayUrl || 'ws://127.0.0.1:9844',
+  acalaUrl: process.env.acalaUrl || 'ws://127.0.0.1:9946',
+  karuraUrl: process.env.acalaUrl || 'ws://127.0.0.1:9946',
+  moonbeamUrl: process.env.moonbeamUrl || 'ws://127.0.0.1:9947',
+  moonriverUrl: process.env.moonbeamUrl || 'ws://127.0.0.1:9947',
+  westmintUrl: process.env.westmintUrl || 'ws://127.0.0.1:9948',
 };
 
-export default config;
\ No newline at end of file
+export default config;

--- a/tests/src/eth/util/playgrounds/unique.dev.ts
+++ b/tests/src/eth/util/playgrounds/unique.dev.ts
@@ -361,6 +361,7 @@
   }
 
   clearApi() {
+    super.clearApi();
     this.web3 = null;
   }
 

--- a/tests/src/rmrk/acceptNft.seqtest.ts
+++ b/tests/src/rmrk/acceptNft.seqtest.ts
@@ -7,8 +7,7 @@
   acceptNft,
 } from './util/tx';
 import {NftIdTuple} from './util/fetch';
-import {isNftChildOfAnother, expectTxFailure} from './util/helpers';
-import {requirePallets, Pallets} from '../deprecated-helpers/helpers';
+import {isNftChildOfAnother, expectTxFailure, requirePallets, Pallets} from './util/helpers';
 
 describe('integration test: accept NFT', () => {
   let api: any;
@@ -104,5 +103,5 @@
     expect(isChild).to.be.false;
   });
 
-  after(() => { api.disconnect(); });
+  after(async() => { await api.disconnect(); });
 });

--- a/tests/src/rmrk/addResource.seqtest.ts
+++ b/tests/src/rmrk/addResource.seqtest.ts
@@ -1,7 +1,7 @@
 import {expect} from 'chai';
 import {getApiConnection} from '../substrate/substrate-api';
 import {NftIdTuple} from './util/fetch';
-import {expectTxFailure, getResourceById} from './util/helpers';
+import {expectTxFailure, getResourceById, requirePallets, Pallets} from './util/helpers';
 import {
   addNftBasicResource,
   acceptNftResource,
@@ -12,7 +12,6 @@
   addNftComposableResource,
 } from './util/tx';
 import {RmrkTraitsResourceResourceInfo as ResourceInfo} from '@polkadot/types/lookup';
-import {requirePallets, Pallets} from '../deprecated-helpers/helpers';
 
 describe('integration test: add NFT resource', () => {
   const alice = '//Alice';
@@ -433,6 +432,6 @@
 
 
   after(() => {
-    api.disconnect();
+    after(async() => { await api.disconnect(); });
   });
 });

--- a/tests/src/rmrk/addTheme.seqtest.ts
+++ b/tests/src/rmrk/addTheme.seqtest.ts
@@ -1,9 +1,8 @@
 import {expect} from 'chai';
 import {getApiConnection} from '../substrate/substrate-api';
 import {createBase, addTheme} from './util/tx';
-import {expectTxFailure} from './util/helpers';
+import {expectTxFailure, requirePallets, Pallets} from './util/helpers';
 import {getThemeNames} from './util/fetch';
-import {requirePallets, Pallets} from '../deprecated-helpers/helpers';
 
 describe('integration test: add Theme to Base', () => {
   let api: any;
@@ -126,5 +125,5 @@
     await expectTxFailure(/rmrkEquip\.PermissionError/, tx);
   });
 
-  after(() => { api.disconnect(); });
+  after(async() => { await api.disconnect(); });
 });

--- a/tests/src/rmrk/burnNft.seqtest.ts
+++ b/tests/src/rmrk/burnNft.seqtest.ts
@@ -1,11 +1,10 @@
 import {getApiConnection} from '../substrate/substrate-api';
-import {expectTxFailure} from './util/helpers';
+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';
-import {requirePallets, Pallets} from '../deprecated-helpers/helpers';
 
 chai.use(chaiAsPromised);
 const expect = chai.expect;
@@ -167,7 +166,5 @@
     });
   });
 
-  after(() => {
-    api.disconnect();
-  });
+  after(async() => { await api.disconnect(); });
 });

--- a/tests/src/rmrk/changeCollectionIssuer.seqtest.ts
+++ b/tests/src/rmrk/changeCollectionIssuer.seqtest.ts
@@ -1,6 +1,5 @@
 import {getApiConnection} from '../substrate/substrate-api';
-import {requirePallets, Pallets} from '../deprecated-helpers/helpers';
-import {expectTxFailure} from './util/helpers';
+import {expectTxFailure, requirePallets, Pallets} from './util/helpers';
 import {
   changeIssuer,
   createCollection,
@@ -50,7 +49,5 @@
     });
   });
 
-  after(() => {
-    api.disconnect();
-  });
+  after(async() => { await api.disconnect(); });
 });

--- a/tests/src/rmrk/createBase.seqtest.ts
+++ b/tests/src/rmrk/createBase.seqtest.ts
@@ -1,5 +1,5 @@
 import {getApiConnection} from '../substrate/substrate-api';
-import {requirePallets, Pallets} from '../deprecated-helpers/helpers';
+import {requirePallets, Pallets} from './util/helpers';
 import {createCollection, createBase} from './util/tx';
 
 describe('integration test: create new Base', () => {
@@ -84,5 +84,5 @@
     ]);
   });
 
-  after(() => { api.disconnect(); });
+  after(async() => { await api.disconnect(); });
 });

--- a/tests/src/rmrk/createCollection.seqtest.ts
+++ b/tests/src/rmrk/createCollection.seqtest.ts
@@ -1,5 +1,5 @@
 import {getApiConnection} from '../substrate/substrate-api';
-import {requirePallets, Pallets} from '../deprecated-helpers/helpers';
+import {requirePallets, Pallets} from './util/helpers';
 import {createCollection} from './util/tx';
 
 describe('Integration test: create new collection', () => {
@@ -21,5 +21,5 @@
     await createCollection(api, alice, 'no-limit-metadata', null, 'no-limit-symbol');
   });
 
-  after(() => { api.disconnect(); });
+  after(async() => { await api.disconnect(); });
 });

--- a/tests/src/rmrk/deleteCollection.seqtest.ts
+++ b/tests/src/rmrk/deleteCollection.seqtest.ts
@@ -1,6 +1,5 @@
 import {getApiConnection} from '../substrate/substrate-api';
-import {requirePallets, Pallets} from '../deprecated-helpers/helpers';
-import {expectTxFailure} from './util/helpers';
+import {expectTxFailure, requirePallets, Pallets} from './util/helpers';
 import {createCollection, deleteCollection} from './util/tx';
 
 describe('integration test: delete collection', () => {
@@ -43,7 +42,5 @@
     });
   });
 
-  after(() => {
-    api.disconnect();
-  });
+  after(async() => { await api.disconnect(); });
 });

--- a/tests/src/rmrk/equipNft.seqtest.ts
+++ b/tests/src/rmrk/equipNft.seqtest.ts
@@ -1,9 +1,8 @@
 import {ApiPromise} from '@polkadot/api';
 import {expect} from 'chai';
 import {getApiConnection} from '../substrate/substrate-api';
-import {requirePallets, Pallets} from '../deprecated-helpers/helpers';
 import {getNft, NftIdTuple} from './util/fetch';
-import {expectTxFailure} from './util/helpers';
+import {expectTxFailure, requirePallets, Pallets} from './util/helpers';
 import {
   addNftComposableResource,
   addNftSlotResource,
@@ -337,7 +336,5 @@
     await expectTxFailure(/rmrkEquip\.CollectionNotEquippable/, tx);
   });
 
-  after(() => {
-    api.disconnect();
-  });
+  after(async() => { await api.disconnect(); });
 });

--- a/tests/src/rmrk/getOwnedNfts.seqtest.ts
+++ b/tests/src/rmrk/getOwnedNfts.seqtest.ts
@@ -1,6 +1,6 @@
 import {expect} from 'chai';
 import {getApiConnection} from '../substrate/substrate-api';
-import {requirePallets, Pallets} from '../deprecated-helpers/helpers';
+import {requirePallets, Pallets} from './util/helpers';
 import {getOwnedNfts} from './util/fetch';
 import {mintNft, createCollection} from './util/tx';
 
@@ -76,5 +76,5 @@
     });
   });
 
-  after(() => { api.disconnect(); });
+  after(async() => { await api.disconnect(); });
 });

--- a/tests/src/rmrk/lockCollection.seqtest.ts
+++ b/tests/src/rmrk/lockCollection.seqtest.ts
@@ -1,6 +1,5 @@
 import {getApiConnection} from '../substrate/substrate-api';
-import {requirePallets, Pallets} from '../deprecated-helpers/helpers';
-import {expectTxFailure} from './util/helpers';
+import {expectTxFailure, requirePallets, Pallets} from './util/helpers';
 import {createCollection, lockCollection, mintNft} from './util/tx';
 
 describe('integration test: lock collection', () => {
@@ -113,7 +112,5 @@
     });
   });
 
-  after(() => {
-    api.disconnect();
-  });
+  after(async() => { await api.disconnect(); });
 });

--- a/tests/src/rmrk/mintNft.seqtest.ts
+++ b/tests/src/rmrk/mintNft.seqtest.ts
@@ -1,8 +1,7 @@
 import {expect} from 'chai';
 import {getApiConnection} from '../substrate/substrate-api';
-import {requirePallets, Pallets} from '../deprecated-helpers/helpers';
 import {getNft} from './util/fetch';
-import {expectTxFailure} from './util/helpers';
+import {expectTxFailure, requirePallets, Pallets} from './util/helpers';
 import {createCollection, mintNft} from './util/tx';
 
 describe('integration test: mint new NFT', () => {
@@ -208,5 +207,5 @@
     expect(nft.isSome).to.be.false;
   });
 
-  after(() => { api.disconnect(); });
+  after(async() => { await api.disconnect(); });
 });

--- a/tests/src/rmrk/rejectNft.seqtest.ts
+++ b/tests/src/rmrk/rejectNft.seqtest.ts
@@ -7,8 +7,7 @@
   rejectNft,
 } from './util/tx';
 import {NftIdTuple} from './util/fetch';
-import {isNftChildOfAnother, expectTxFailure} from './util/helpers';
-import {requirePallets, Pallets} from '../deprecated-helpers/helpers';
+import {isNftChildOfAnother, expectTxFailure, requirePallets, Pallets} from './util/helpers';
 
 describe('integration test: reject NFT', () => {
   let api: any;
@@ -91,5 +90,5 @@
     await expectTxFailure(/rmrkCore\.CannotRejectNonPendingNft/, tx);
   });
 
-  after(() => { api.disconnect(); });
+  after(async() => { await api.disconnect(); });
 });

--- a/tests/src/rmrk/removeResource.seqtest.ts
+++ b/tests/src/rmrk/removeResource.seqtest.ts
@@ -1,7 +1,6 @@
 import {getApiConnection} from '../substrate/substrate-api';
-import {requirePallets, Pallets} from '../deprecated-helpers/helpers';
 import {NftIdTuple} from './util/fetch';
-import {expectTxFailure} from './util/helpers';
+import {expectTxFailure, requirePallets, Pallets} from './util/helpers';
 import {
   acceptResourceRemoval, addNftBasicResource, createCollection, mintNft, removeNftResource, sendNft,
 } from './util/tx';
@@ -337,7 +336,5 @@
     await expectTxFailure(/rmrkCore\.NoPermission/, tx);
   });
 
-  after(() => {
-    api.disconnect();
-  });
+  after(async() => { await api.disconnect(); });
 });

--- a/tests/src/rmrk/rmrkIsolation.seqtest.ts
+++ b/tests/src/rmrk/rmrkIsolation.seqtest.ts
@@ -1,85 +1,80 @@
-import {expect} from 'chai';
-import usingApi, {executeTransaction} from '../substrate/substrate-api';
-import {
-  createCollectionExpectSuccess,
-  createItemExpectSuccess,
-  getCreateCollectionResult,
-  getDetailedCollectionInfo,
-  getGenericResult,
-  requirePallets,
-  normalizeAccountId,
-  Pallets,
-} from '../deprecated-helpers/helpers';
+import {executeTransaction} from '../substrate/substrate-api';
 import {IKeyringPair} from '@polkadot/types/types';
-import {ApiPromise} from '@polkadot/api';
-import {it} from 'mocha';
+import {itSub, expect, usingPlaygrounds, Pallets, requirePalletsOrSkip} from '../util';
+import {UniqueHelper} from '../util/playgrounds/unique';
 
 let alice: IKeyringPair;
 let bob: IKeyringPair;
 
-async function createRmrkCollection(api: ApiPromise, sender: IKeyringPair): Promise<{uniqueId: number, rmrkId: number}> {
-  const tx = api.tx.rmrkCore.createCollection('metadata', null, 'symbol');
-  const events = await executeTransaction(api, sender, tx);
+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);
 
-  const uniqueResult = getCreateCollectionResult(events);
-  const rmrkResult = getGenericResult(events, 'rmrkCore', 'CollectionCreated', (data) => {
-    return parseInt(data[1].toString(), 10);
+  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: uniqueResult.collectionId,
-    rmrkId: rmrkResult.data!,
+    uniqueId,
+    rmrkId,
   };
 }
 
-async function createRmrkNft(api: ApiPromise, sender: IKeyringPair, collectionId: number): Promise<number> {
-  const tx = api.tx.rmrkCore.mintNft(
-    sender.address,
-    collectionId,
-    sender.address,
-    null,
-    'nft-metadata',
+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,
-    null,
   );
-  const events = await executeTransaction(api, sender, tx);
-  const result = getGenericResult(events, 'rmrkCore', 'NftMinted', (data) => {
-    return parseInt(data[2].toString(), 10);
+
+  let rmrkNftId = null;
+  result.result.events.forEach(({event: {data, method, section}}) => {
+    if ((section === 'rmrkCore') && (method === 'NftMinted')) {
+      rmrkNftId = parseInt(data[2].toString(), 10);
+    }
   });
 
-  return result.data!;
-}
+  if (rmrkNftId === null) {
+    throw Error('No rmrkCore.NftMinted event was found!');
+  }
 
-async function isUnique(): Promise<boolean> {
-  return usingApi(async api => {
-    const chain = await api.rpc.system.chain();
-
-    return chain.eq('UNIQUE');
-  });
+  return rmrkNftId;
 }
 
 describe('RMRK External Integration Test', async () => {
-  const itRmrk = (await isUnique() ? it : it.skip);
-
   before(async function() {
-    await usingApi(async (api, privateKeyWrapper) => {
-      alice = privateKeyWrapper('//Alice');
-      await requirePallets(this, [Pallets.RmrkCore]);
+    await usingPlaygrounds(async (_helper, privateKey) => {
+      alice = await privateKey('//Alice');
     });
   });
 
-  itRmrk('Creates a new RMRK collection that is mapped to a different ID and is tagged as external', async () => {
-    await usingApi(async api => {
-      // throwaway collection to bump last Unique collection ID to test ID mapping
-      await createCollectionExpectSuccess();
+  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(api, alice);
+    const collectionIds = await createRmrkCollection(helper, alice);
 
-      expect(collectionIds.rmrkId).to.be.lessThan(collectionIds.uniqueId, 'collection ID mapping');
+    expect(collectionIds.rmrkId).to.be.lessThan(collectionIds.uniqueId, 'collection ID mapping');
 
-      const collection = (await getDetailedCollectionInfo(api, collectionIds.uniqueId))!;
-      expect(collection.readOnly.toHuman(), 'tagged external').to.be.true;
-    });
+    const collection = (await helper.nft.getCollectionObject(collectionIds.uniqueId).getData())!; // (await getDetailedCollectionInfo(api, collectionIds.uniqueId))!;
+    expect(collection.raw.readOnly, 'tagged external').to.be.true;
   });
 });
 
@@ -87,165 +82,144 @@
   let uniqueCollectionId: number;
   let rmrkCollectionId: number;
   let rmrkNftId: number;
+  let normalizedAlice: {Substrate: string};
 
-  const itRmrk = (await isUnique() ? it : it.skip);
+  before(async function() {
+    await usingPlaygrounds(async (helper, privateKey) => {
+      alice = await privateKey('//Alice');
+      bob = await privateKey('//Bob');
+      normalizedAlice = {Substrate: helper.address.normalizeSubstrateToChainFormat(alice.address)};
 
-  before(async () => {
-    await usingApi(async (api, privateKeyWrapper) => {
-      alice = privateKeyWrapper('//Alice');
-      bob = privateKeyWrapper('//Bob');
+      requirePalletsOrSkip(this, helper, [Pallets.RmrkCore]);
 
-      const collectionIds = await createRmrkCollection(api, alice);
+      const collectionIds = await createRmrkCollection(helper, alice);
       uniqueCollectionId = collectionIds.uniqueId;
       rmrkCollectionId = collectionIds.rmrkId;
 
-      rmrkNftId = await createRmrkNft(api, alice, rmrkCollectionId);
+      rmrkNftId = await createRmrkNft(helper, alice, rmrkCollectionId);
     });
   });
 
-  itRmrk('[Negative] Forbids Unique operations with an external collection, handled by dispatch_call', async () => {
-    await usingApi(async api => {
-      // Collection item creation
+  itSub.ifWithPallets('[Negative] Forbids Unique operations with an external collection, handled by dispatch_call', [Pallets.RmrkCore], async ({helper}) => {
+    // Collection item creation
 
-      const txCreateItem = api.tx.unique.createItem(uniqueCollectionId, normalizeAccountId(alice), 'NFT');
-      await expect(executeTransaction(api, alice, txCreateItem), 'creating item')
-        .to.be.rejectedWith(/common\.CollectionIsExternal/);
+    await expect(helper.nft.mintToken(alice, {collectionId: uniqueCollectionId, owner: {Substrate: alice.address}}), 'creating item')
+      .to.be.rejectedWith(/common\.CollectionIsExternal/);
 
-      const txCreateMultipleItems = api.tx.unique.createMultipleItems(uniqueCollectionId, normalizeAccountId(alice), [{NFT: {}}, {NFT: {}}]);
-      await expect(executeTransaction(api, alice, txCreateMultipleItems), 'creating multiple')
-        .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/);
 
-      const txCreateMultipleItemsEx = api.tx.unique.createMultipleItemsEx(uniqueCollectionId, {NFT: [{}]});
-      await expect(executeTransaction(api, alice, txCreateMultipleItemsEx), 'creating multiple ex')
-        .to.be.rejectedWith(/common\.CollectionIsExternal/);
+    // Collection properties
 
-      // Collection properties
+    await expect(helper.nft.setProperties(alice, uniqueCollectionId, [{key: 'a', value: '1'}, {key: 'b'}]), 'setting collection properties')
+      .to.be.rejectedWith(/common\.CollectionIsExternal/);
 
-      const txSetCollectionProperties = api.tx.unique.setCollectionProperties(uniqueCollectionId, [{key: 'a', value: '1'}, {key: 'b'}]);
-      await expect(executeTransaction(api, alice, txSetCollectionProperties), 'setting collection properties')
-        .to.be.rejectedWith(/common\.CollectionIsExternal/);
+    await expect(helper.nft.deleteProperties(alice, uniqueCollectionId, ['a']), 'deleting collection properties')
+      .to.be.rejectedWith(/common\.CollectionIsExternal/);
 
-      const txDeleteCollectionProperties = api.tx.unique.deleteCollectionProperties(uniqueCollectionId, ['a']);
-      await expect(executeTransaction(api, alice, txDeleteCollectionProperties), '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/);
 
-      const txsetTokenPropertyPermissions = api.tx.unique.setTokenPropertyPermissions(uniqueCollectionId, [{key: 'a', permission: {mutable: true}}]);
-      await expect(executeTransaction(api, alice, txsetTokenPropertyPermissions), 'setting property permissions')
-        .to.be.rejectedWith(/common\.CollectionIsExternal/);
+    // NFT
 
-      // NFT
+    await expect(helper.nft.burnToken(alice, uniqueCollectionId, rmrkNftId, 1n), 'burning')
+      .to.be.rejectedWith(/common\.CollectionIsExternal/);
 
-      const txBurn = api.tx.unique.burnItem(uniqueCollectionId, rmrkNftId, 1);
-      await expect(executeTransaction(api, alice, txBurn), '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/);
 
-      const txBurnFrom = api.tx.unique.burnFrom(uniqueCollectionId, normalizeAccountId(alice), rmrkNftId, 1);
-      await expect(executeTransaction(api, alice, txBurnFrom), 'burning-from').to.be.rejectedWith(/common\.CollectionIsExternal/);
+    await expect(helper.nft.transferToken(alice, uniqueCollectionId, rmrkNftId, {Substrate: bob.address}), 'transferring')
+      .to.be.rejectedWith(/common\.CollectionIsExternal/);
 
-      const txTransfer = api.tx.unique.transfer(normalizeAccountId(bob), uniqueCollectionId, rmrkNftId, 1);
-      await expect(executeTransaction(api, alice, txTransfer), 'transferring').to.be.rejectedWith(/common\.CollectionIsExternal/);
-
-      const txApprove = api.tx.unique.approve(normalizeAccountId(bob), uniqueCollectionId, rmrkNftId, 1);
-      await expect(executeTransaction(api, alice, txApprove), 'approving').to.be.rejectedWith(/common\.CollectionIsExternal/);
+    await expect(helper.nft.approveToken(alice, uniqueCollectionId, rmrkNftId, {Substrate: bob.address}), 'approving')
+      .to.be.rejectedWith(/common\.CollectionIsExternal/);
 
-      const txTransferFrom = api.tx.unique.transferFrom(normalizeAccountId(alice), normalizeAccountId(bob), uniqueCollectionId, rmrkNftId, 1);
-      await expect(executeTransaction(api, alice, txTransferFrom), 'transferring-from').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
+    // NFT properties
 
-      const txSetTokenProperties = api.tx.unique.setTokenProperties(uniqueCollectionId, rmrkNftId, [{key: 'a', value: '2'}]);
-      await expect(executeTransaction(api, alice, txSetTokenProperties), 'setting token properties')
-        .to.be.rejectedWith(/common\.CollectionIsExternal/);
+    await expect(helper.nft.setTokenProperties(alice, uniqueCollectionId, rmrkNftId, [{key: 'a', value: '2'}]), 'setting token properties')
+      .to.be.rejectedWith(/common\.CollectionIsExternal/);
 
-      const txDeleteTokenProperties = api.tx.unique.deleteTokenProperties(uniqueCollectionId, rmrkNftId, ['a']);
-      await expect(executeTransaction(api, alice, txDeleteTokenProperties), 'deleting token properties')
-        .to.be.rejectedWith(/common\.CollectionIsExternal/);
-    });
+    await expect(helper.nft.deleteTokenProperties(alice, uniqueCollectionId, rmrkNftId, ['a']))
+      .to.be.rejectedWith(/common\.CollectionIsExternal/);
   });
 
-  itRmrk('[Negative] Forbids Unique collection operations with an external collection', async () => {
-    await usingApi(async api => {
-      const txDestroyCollection = api.tx.unique.destroyCollection(uniqueCollectionId);
-      await expect(executeTransaction(api, alice, txDestroyCollection), 'destroying collection')
-        .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
+    // Allow list
 
-      const txAddAllowList = api.tx.unique.addToAllowList(uniqueCollectionId, normalizeAccountId(bob));
-      await expect(executeTransaction(api, alice, txAddAllowList), 'adding to allow list')
-        .to.be.rejectedWith(/common\.CollectionIsExternal/);
+    await expect(helper.nft.addToAllowList(alice, uniqueCollectionId, {Substrate: bob.address}), 'adding to allow list')
+      .to.be.rejectedWith(/common\.CollectionIsExternal/);
 
-      const txRemoveAllowList = api.tx.unique.removeFromAllowList(uniqueCollectionId, normalizeAccountId(bob));
-      await expect(executeTransaction(api, alice, txRemoveAllowList), 'removing from allowlist')
-        .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
+    // Owner / Admin / Sponsor
 
-      const txChangeOwner = api.tx.unique.changeCollectionOwner(uniqueCollectionId, bob.address);
-      await expect(executeTransaction(api, alice, txChangeOwner), 'changing owner')
-        .to.be.rejectedWith(/common\.CollectionIsExternal/);
+    await expect(helper.nft.changeOwner(alice, uniqueCollectionId, bob.address), 'changing owner')
+      .to.be.rejectedWith(/common\.CollectionIsExternal/);
 
-      const txAddAdmin = api.tx.unique.addCollectionAdmin(uniqueCollectionId, normalizeAccountId(bob));
-      await expect(executeTransaction(api, alice, txAddAdmin), 'adding admin')
-        .to.be.rejectedWith(/common\.CollectionIsExternal/);
+    await expect(helper.nft.addAdmin(alice, uniqueCollectionId, {Substrate: bob.address}), 'adding admin')
+      .to.be.rejectedWith(/common\.CollectionIsExternal/);
 
-      const txRemoveAdmin = api.tx.unique.removeCollectionAdmin(uniqueCollectionId, normalizeAccountId(bob));
-      await expect(executeTransaction(api, alice, txRemoveAdmin), 'removing admin')
-        .to.be.rejectedWith(/common\.CollectionIsExternal/);
+    await expect(helper.nft.removeAdmin(alice, uniqueCollectionId, {Substrate: bob.address}), 'removing admin')
+      .to.be.rejectedWith(/common\.CollectionIsExternal/);
 
-      const txAddCollectionSponsor = api.tx.unique.setCollectionSponsor(uniqueCollectionId, bob.address);
-      await expect(executeTransaction(api, alice, txAddCollectionSponsor), 'setting sponsor')
-        .to.be.rejectedWith(/common\.CollectionIsExternal/);
+    await expect(helper.nft.setSponsor(alice, uniqueCollectionId, bob.address), 'setting sponsor')
+      .to.be.rejectedWith(/common\.CollectionIsExternal/);
 
-      const txConfirmCollectionSponsor = api.tx.unique.confirmSponsorship(uniqueCollectionId);
-      await expect(executeTransaction(api, alice, txConfirmCollectionSponsor), 'confirming sponsor')
-        .to.be.rejectedWith(/common\.CollectionIsExternal/);
+    await expect(helper.nft.confirmSponsorship(alice, uniqueCollectionId), 'confirming sponsor')
+      .to.be.rejectedWith(/common\.CollectionIsExternal/);
 
-      const txRemoveCollectionSponsor = api.tx.unique.removeCollectionSponsor(uniqueCollectionId);
-      await expect(executeTransaction(api, alice, txRemoveCollectionSponsor), 'removing sponsor')
-        .to.be.rejectedWith(/common\.CollectionIsExternal/);
-      
-      // Limits / permissions / transfers
+    await expect(helper.nft.removeSponsor(alice, uniqueCollectionId), 'removing sponsor')
+      .to.be.rejectedWith(/common\.CollectionIsExternal/);
+    
+    // Limits / permissions / transfers
 
-      const txSetTransfers = api.tx.unique.setTransfersEnabledFlag(uniqueCollectionId, true);
-      await expect(executeTransaction(api, alice, txSetTransfers), 'setting transfers enabled flag')
-        .to.be.rejectedWith(/common\.CollectionIsExternal/);
+    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/);
 
-      const txSetLimits = api.tx.unique.setCollectionLimits(uniqueCollectionId, {transfersEnabled: false});
-      await expect(executeTransaction(api, alice, txSetLimits), 'setting collection limits')
-        .to.be.rejectedWith(/common\.CollectionIsExternal/);
+    await expect(helper.nft.setLimits(alice, uniqueCollectionId, {transfersEnabled: false}), 'setting collection limits')
+      .to.be.rejectedWith(/common\.CollectionIsExternal/);
 
-      const txSetPermissions = api.tx.unique.setCollectionPermissions(uniqueCollectionId, {access: 'AllowList'});
-      await expect(executeTransaction(api, alice, txSetPermissions), 'setting collection permissions')
-        .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', async () => {
   let collectionId: number;
   let nftId: number;
-
-  const itRmrk = (await isUnique() ? it : it.skip);
 
   before(async () => {
-    await usingApi(async (api, privateKeyWrapper) => {
-      alice = privateKeyWrapper('//Alice');
-      bob = privateKeyWrapper('//Bob');
+    await usingPlaygrounds(async (helper, privateKey) => {
+      alice = await privateKey('//Alice');
+      bob = await privateKey('//Bob');
 
-      collectionId = await createCollectionExpectSuccess({mode: {type: 'NFT'}});
-      nftId = await createItemExpectSuccess(alice, collectionId, 'NFT');
+      const collection = await helper.nft.mintCollection(alice, {tokenPrefix: 'iceo'});
+      collectionId = collection.collectionId;
+      nftId = (await collection.mintToken(alice)).tokenId;
     });
   });
 
-  itRmrk('[Negative] Forbids RMRK operations with the internal collection and NFT (due to the lack of mapping)', async () => {
-    await usingApi(async api => {
-      const txChangeOwner = api.tx.rmrkCore.changeCollectionIssuer(collectionId, bob.address);
-      await expect(executeTransaction(api, alice, txChangeOwner), 'changing collection issuer')
-        .to.be.rejectedWith(/rmrkCore\.CollectionUnknown/);
+  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/);
-    });
+    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/);
   });
 });

--- a/tests/src/rmrk/sendNft.seqtest.ts
+++ b/tests/src/rmrk/sendNft.seqtest.ts
@@ -2,8 +2,7 @@
 import {getApiConnection} from '../substrate/substrate-api';
 import {createCollection, mintNft, sendNft} from './util/tx';
 import {NftIdTuple} from './util/fetch';
-import {isNftChildOfAnother, expectTxFailure} from './util/helpers';
-import {requirePallets, Pallets} from '../deprecated-helpers/helpers';
+import {isNftChildOfAnother, expectTxFailure, requirePallets, Pallets} from './util/helpers';
 
 describe('integration test: send NFT', () => {
   let api: any;
@@ -252,5 +251,5 @@
     await expectTxFailure(/rmrkCore\.NoPermission/, tx);
   });
 
-  after(() => { api.disconnect(); });
+  after(async() => { await api.disconnect(); });
 });

--- a/tests/src/rmrk/setCollectionProperty.seqtest.ts
+++ b/tests/src/rmrk/setCollectionProperty.seqtest.ts
@@ -1,6 +1,5 @@
 import {getApiConnection} from '../substrate/substrate-api';
-import {requirePallets, Pallets} from '../deprecated-helpers/helpers';
-import {expectTxFailure} from './util/helpers';
+import {expectTxFailure, requirePallets, Pallets} from './util/helpers';
 import {createCollection, setPropertyCollection} from './util/tx';
 
 describe('integration test: set collection property', () => {
@@ -63,7 +62,5 @@
     });
   });
 
-  after(() => {
-    api.disconnect();
-  });
+  after(async() => { await api.disconnect(); });
 });

--- a/tests/src/rmrk/setEquippableList.seqtest.ts
+++ b/tests/src/rmrk/setEquippableList.seqtest.ts
@@ -1,6 +1,5 @@
 import {getApiConnection} from '../substrate/substrate-api';
-import {requirePallets, Pallets} from '../deprecated-helpers/helpers';
-import {expectTxFailure} from './util/helpers';
+import {expectTxFailure, requirePallets, Pallets} from './util/helpers';
 import {createCollection, createBase, setEquippableList} from './util/tx';
 
 describe("integration test: set slot's Equippable List", () => {
@@ -111,5 +110,5 @@
     await expectTxFailure(/rmrkEquip\.PartDoesntExist/, tx);
   });
 
-  after(() => { api.disconnect(); });
+  after(async() => { await api.disconnect(); });
 });

--- a/tests/src/rmrk/setNftProperty.seqtest.ts
+++ b/tests/src/rmrk/setNftProperty.seqtest.ts
@@ -1,7 +1,6 @@
 import {getApiConnection} from '../substrate/substrate-api';
-import {requirePallets, Pallets} from '../deprecated-helpers/helpers';
 import {NftIdTuple} from './util/fetch';
-import {expectTxFailure} from './util/helpers';
+import {expectTxFailure, requirePallets, Pallets} from './util/helpers';
 import {createCollection, mintNft, sendNft, setNftProperty} from './util/tx';
 
 describe('integration test: set NFT property', () => {
@@ -85,5 +84,5 @@
     await expectTxFailure(/rmrkCore\.NoPermission/, tx);
   });
 
-  after(() => { api.disconnect(); });
+  after(async() => { await api.disconnect(); });
 });

--- a/tests/src/rmrk/setResourcePriorities.seqtest.ts
+++ b/tests/src/rmrk/setResourcePriorities.seqtest.ts
@@ -1,6 +1,5 @@
 import {getApiConnection} from '../substrate/substrate-api';
-import {requirePallets, Pallets} from '../deprecated-helpers/helpers';
-import {expectTxFailure} from './util/helpers';
+import {expectTxFailure, requirePallets, Pallets} from './util/helpers';
 import {mintNft, createCollection, setResourcePriorities} from './util/tx';
 
 describe('integration test: set NFT resource priorities', () => {
@@ -53,5 +52,5 @@
     await expectTxFailure(/rmrkCore\.NoAvailableNftId/, tx);
   });
 
-  after(() => { api.disconnect(); });
+  after(async() => { await api.disconnect(); });
 });

--- a/tests/src/rmrk/util/helpers.ts
+++ b/tests/src/rmrk/util/helpers.ts
@@ -10,6 +10,8 @@
 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;
@@ -19,6 +21,46 @@
     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');
 

--- a/tests/src/util/index.ts
+++ b/tests/src/util/index.ts
@@ -8,8 +8,9 @@
 import chaiAsPromised from 'chai-as-promised';
 import {Context} from 'mocha';
 import config from '../config';
-import '../interfaces/augment-api-events';
-import {DevUniqueHelper, SilentLogger, SilentConsole} from './playgrounds/unique.dev';
+import {ChainHelperBase} from './playgrounds/unique';
+import {ILogger} from './playgrounds/types';
+import {DevUniqueHelper, SilentLogger, SilentConsole, DevMoonbeamHelper, DevMoonriverHelper, DevAcalaHelper, DevKaruraHelper, DevRelayHelper, DevWestmintHelper} from './playgrounds/unique.dev';
 
 chai.use(chaiAsPromised);
 export const expect = chai.expect;
@@ -22,11 +23,11 @@
   return `//Alice+${getTestHash(filename)}`;
 };
 
-export const usingPlaygrounds = async (code: (helper: DevUniqueHelper, privateKey: (seed: string | {filename: string, ignoreFundsPresence?: boolean}) => Promise<IKeyringPair>) => Promise<void>, url: string = config.substrateUrl) => {
+async function usingPlaygroundsGeneral<T extends ChainHelperBase>(helperType: new(logger: ILogger) => T, url: string, code: (helper: T, privateKey: (seed: string | {filename: string, ignoreFundsPresence?: boolean}) => Promise<IKeyringPair>) => Promise<void>) {
   const silentConsole = new SilentConsole();
   silentConsole.enable();
 
-  const helper = new DevUniqueHelper(new SilentLogger());
+  const helper = new helperType(new SilentLogger());
 
   try {
     await helper.connect(url);
@@ -38,7 +39,8 @@
       else {
         const actualSeed = getTestSeed(seed.filename);
         let account = helper.util.fromSeed(actualSeed, ss58Format);
-        if (!seed.ignoreFundsPresence && await helper.balance.getSubstrate(account.address) < MINIMUM_DONOR_FUND) {
+        // here's to hoping that no 
+        if (!seed.ignoreFundsPresence && ((helper as any)['balance'] == undefined || await (helper as any).balance.getSubstrate(account.address) < MINIMUM_DONOR_FUND)) {
           console.warn(`${path.basename(seed.filename)}: Not enough funds present on the filename account. Using the default one as the donor instead.`);
           account = helper.util.fromSeed('//Alice', ss58Format);
         }
@@ -51,8 +53,36 @@
     await helper.disconnect();
     silentConsole.disable();
   }
+}
+
+export const usingPlaygrounds = (code: (helper: DevUniqueHelper, privateKey: (seed: string | {filename: string, ignoreFundsPresence?: boolean}) => Promise<IKeyringPair>) => Promise<void>, url: string = config.substrateUrl) => {
+  return usingPlaygroundsGeneral<DevUniqueHelper>(DevUniqueHelper, url, code);
+};
+
+export const usingWestmintPlaygrounds = async (url: string, code: (helper: DevWestmintHelper, privateKey: (seed: string) => Promise<IKeyringPair>) => Promise<void>) => {
+  return usingPlaygroundsGeneral<DevWestmintHelper>(DevWestmintHelper, url, code);
+};
+
+export const usingRelayPlaygrounds = async (url: string, code: (helper: DevRelayHelper, privateKey: (seed: string) => Promise<IKeyringPair>) => Promise<void>) => {
+  return usingPlaygroundsGeneral<DevRelayHelper>(DevRelayHelper, url, code);
+};
+
+export const usingAcalaPlaygrounds = async (url: string, code: (helper: DevAcalaHelper, privateKey: (seed: string) => Promise<IKeyringPair>) => Promise<void>) => {
+  return usingPlaygroundsGeneral<DevAcalaHelper>(DevAcalaHelper, url, code);
+};
+
+export const usingKaruraPlaygrounds = async (url: string, code: (helper: DevKaruraHelper, privateKey: (seed: string) => Promise<IKeyringPair>) => Promise<void>) => {
+  return usingPlaygroundsGeneral<DevKaruraHelper>(DevAcalaHelper, url, code);
+};
+
+export const usingMoonbeamPlaygrounds = async (url: string, code: (helper: DevMoonbeamHelper, privateKey: (seed: string) => Promise<IKeyringPair>) => Promise<void>) => {
+  return usingPlaygroundsGeneral<DevMoonbeamHelper>(DevMoonbeamHelper, url, code);
 };
 
+export const usingMoonriverPlaygrounds = async (url: string, code: (helper: DevMoonbeamHelper, privateKey: (seed: string) => Promise<IKeyringPair>) => Promise<void>) => {
+  return usingPlaygroundsGeneral<DevMoonriverHelper>(DevMoonriverHelper, url, code);
+};
+
 export const MINIMUM_DONOR_FUND = 100_000n;
 export const DONOR_FUNDING = 1_000_000n;
 
@@ -98,3 +128,11 @@
 itSubIfWithPallet.only = (name: string, required: string[], cb: (apis: { helper: DevUniqueHelper, privateKey: (seed: string) => Promise<IKeyringPair> }) => any) => itSubIfWithPallet(name, required, cb, {only: true});
 itSubIfWithPallet.skip = (name: string, required: string[], cb: (apis: { helper: DevUniqueHelper, privateKey: (seed: string) => Promise<IKeyringPair> }) => any) => itSubIfWithPallet(name, required, cb, {skip: true});
 itSub.ifWithPallets = itSubIfWithPallet;
+
+export async function describeXCM(title: string, fn: (this: Mocha.Suite) => void, opts: {skip?: boolean} = {}) {
+  (process.env.RUN_XCM_TESTS && !opts.skip
+    ? describe
+    : describe.skip)(title, fn);
+}
+
+describeXCM.skip = (name: string, fn: (this: Mocha.Suite) => void) => describeXCM(name, fn, {skip: true});

--- a/tests/src/util/playgrounds/types.ts
+++ b/tests/src/util/playgrounds/types.ts
@@ -172,8 +172,48 @@
   },
 }
 
+export interface IForeignAssetMetadata {
+  name?: number | Uint8Array,
+  symbol?: string,
+  decimals?: number,
+  minimalBalance?: bigint,
+}
+
+export interface MoonbeamAssetInfo {
+  location: any,
+  metadata: {
+    name: string,
+    symbol: string,
+    decimals: number,
+    isFrozen: boolean,
+    minimalBalance: bigint,
+  },
+  existentialDeposit: bigint,
+  isSufficient: boolean,
+  unitsPerSecond: bigint,
+  numAssetsWeightHint: number,
+}
+
+export interface AcalaAssetMetadata {
+  name: string,
+  symbol: string,
+  decimals: number,
+  minimalBalance: bigint,
+}
+
+export interface DemocracyStandardAccountVote {
+  balance: bigint,
+  vote: {
+    aye: boolean,
+    conviction: number,
+  },
+}
+
 export type TSubstrateAccount = string;
 export type TEthereumAccount = string;
 export type TApiAllowedListeners = 'connected' | 'disconnected' | 'error' | 'ready' | 'decorated';
 export type TUniqueNetworks = 'opal' | 'quartz' | 'unique';
+export type TSiblingNetworkds = 'moonbeam' | 'moonriver' | 'acala' | 'karura' | 'westmint';
+export type TRelayNetworks = 'rococo' | 'westend';
+export type TNetworks = TUniqueNetworks | TSiblingNetworkds | TRelayNetworks;
 export type TSigner = IKeyringPair; // | 'string'

--- a/tests/src/util/playgrounds/unique.dev.ts
+++ b/tests/src/util/playgrounds/unique.dev.ts
@@ -3,11 +3,13 @@
 
 import {stringToU8a} from '@polkadot/util';
 import {encodeAddress, mnemonicGenerate} from '@polkadot/util-crypto';
-import {UniqueHelper} from './unique';
-import {ApiPromise, WsProvider} from '@polkadot/api';
+import {UniqueHelper, MoonbeamHelper, ChainHelperBase, AcalaHelper, RelayHelper, WestmintHelper} from './unique';
+import {ApiPromise, Keyring, WsProvider} from '@polkadot/api';
 import * as defs from '../../interfaces/definitions';
 import {IKeyringPair} from '@polkadot/types/types';
+import {EventRecord} from '@polkadot/types/interfaces';
 import {ICrossAccountId} from './types';
+import {FrameSystemEventRecord} from '@polkadot/types/lookup';
 
 export class SilentLogger {
   log(_msg: any, _level: any): void { }
@@ -54,7 +56,6 @@
   }
 }
 
-
 export class DevUniqueHelper extends UniqueHelper {
   /**
    * Arrange methods for tests
@@ -109,6 +110,47 @@
   }
 }
 
+export class DevRelayHelper extends RelayHelper {}
+
+export class DevWestmintHelper extends WestmintHelper {
+  wait: WaitGroup;
+
+  constructor(logger: { log: (msg: any, level: any) => void, level: any }, options: {[key: string]: any} = {}) {
+    options.helperBase = options.helperBase ?? DevWestmintHelper;
+
+    super(logger, options);
+    this.wait = new WaitGroup(this);
+  }
+}
+
+export class DevMoonbeamHelper extends MoonbeamHelper {
+  account: MoonbeamAccountGroup;
+  wait: WaitGroup;
+
+  constructor(logger: { log: (msg: any, level: any) => void, level: any }, options: {[key: string]: any} = {}) {
+    options.helperBase = options.helperBase ?? DevMoonbeamHelper;
+
+    super(logger, options);
+    this.account = new MoonbeamAccountGroup(this);
+    this.wait = new WaitGroup(this);
+  }
+}
+
+export class DevMoonriverHelper extends DevMoonbeamHelper {}
+
+export class DevAcalaHelper extends AcalaHelper {
+  wait: WaitGroup;
+
+  constructor(logger: { log: (msg: any, level: any) => void, level: any }, options: {[key: string]: any} = {}) {
+    options.helperBase = options.helperBase ?? DevAcalaHelper;
+
+    super(logger, options);
+    this.wait = new WaitGroup(this);
+  }
+}
+
+export class DevKaruraHelper extends DevAcalaHelper {}
+
 class ArrangeGroup {
   helper: DevUniqueHelper;
 
@@ -252,10 +294,48 @@
   }
 }
 
+class MoonbeamAccountGroup {
+  helper: MoonbeamHelper;
+
+  keyring: Keyring;
+  _alithAccount: IKeyringPair;
+  _baltatharAccount: IKeyringPair;
+  _dorothyAccount: IKeyringPair;
+
+  constructor(helper: MoonbeamHelper) {
+    this.helper = helper;
+
+    this.keyring = new Keyring({type: 'ethereum'});
+    const alithPrivateKey = '0x5fb92d6e98884f76de468fa3f6278f8807c48bebc13595d45af5bdc4da702133';
+    const baltatharPrivateKey = '0x8075991ce870b93a8870eca0c0f91913d12f47948ca0fd25b49c6fa7cdbeee8b';
+    const dorothyPrivateKey = '0x39539ab1876910bbf3a223d84a29e28f1cb4e2e456503e7e91ed39b2e7223d68';
+
+    this._alithAccount = this.keyring.addFromUri(alithPrivateKey, undefined, 'ethereum');
+    this._baltatharAccount = this.keyring.addFromUri(baltatharPrivateKey, undefined, 'ethereum');
+    this._dorothyAccount = this.keyring.addFromUri(dorothyPrivateKey, undefined, 'ethereum');
+  }
+
+  alithAccount() {
+    return this._alithAccount;
+  }
+
+  baltatharAccount() {
+    return this._baltatharAccount;
+  }
+
+  dorothyAccount() {
+    return this._dorothyAccount;
+  }
+
+  create() {
+    return this.keyring.addFromUri(mnemonicGenerate());
+  }
+}
+
 class WaitGroup {
-  helper: DevUniqueHelper;
+  helper: ChainHelperBase;
 
-  constructor(helper: DevUniqueHelper) {
+  constructor(helper: ChainHelperBase) {
     this.helper = helper;
   }
 
@@ -303,6 +383,40 @@
       });
     });
   }
+
+  async event(maxBlocksToWait: number, eventSection: string, eventMethod: string) {
+    // eslint-disable-next-line no-async-promise-executor
+    const promise = new Promise<EventRecord | null>(async (resolve) => {
+      const unsubscribe = await this.helper.getApi().rpc.chain.subscribeNewHeads(async header => {
+        const blockNumber = header.number.toHuman();
+        const blockHash = header.hash;
+        const eventIdStr = `${eventSection}.${eventMethod}`;
+        const waitLimitStr = `wait blocks remaining: ${maxBlocksToWait}`;
+  
+        this.helper.logger.log(`[Block #${blockNumber}] Waiting for event \`${eventIdStr}\` (${waitLimitStr})`);
+  
+        const apiAt = await this.helper.getApi().at(blockHash);
+        const eventRecords = (await apiAt.query.system.events()) as any;
+  
+        const neededEvent = eventRecords.toArray().find((r: FrameSystemEventRecord) => {
+          return r.event.section == eventSection && r.event.method == eventMethod;
+        });
+  
+        if (neededEvent) {
+          unsubscribe();
+          resolve(neededEvent);
+        } else if (maxBlocksToWait > 0) {
+          maxBlocksToWait--;
+        } else {
+          this.helper.logger.log(`Event \`${eventIdStr}\` is NOT found`);
+  
+          unsubscribe();
+          resolve(null);
+        }
+      });
+    });
+    return promise;
+  }
 }
 
 class AdminGroup {

--- a/tests/src/util/playgrounds/unique.ts
+++ b/tests/src/util/playgrounds/unique.ts
@@ -9,7 +9,7 @@
 import {ApiInterfaceEvents, SignerOptions} from '@polkadot/api/types';
 import {encodeAddress, decodeAddress, keccakAsHex, evmToAddress, addressToEvm} from '@polkadot/util-crypto';
 import {IKeyringPair} from '@polkadot/types/types';
-import {IApiListeners, IBlock, IEvent, IChainProperties, ICollectionCreationOptions, ICollectionLimits, ICollectionPermissions, ICrossAccountId, ICrossAccountIdLower, ILogger, INestingPermissions, IProperty, IStakingInfo, ISchedulerOptions, ISubstrateBalance, IToken, ITokenPropertyPermission, ITransactionResult, IUniqueHelperLog, TApiAllowedListeners, TEthereumAccount, TSigner, TSubstrateAccount, TUniqueNetworks} from './types';
+import {IApiListeners, IBlock, IEvent, IChainProperties, ICollectionCreationOptions, ICollectionLimits, ICollectionPermissions, ICrossAccountId, ICrossAccountIdLower, ILogger, INestingPermissions, IProperty, IStakingInfo, ISchedulerOptions, ISubstrateBalance, IToken, ITokenPropertyPermission, ITransactionResult, IUniqueHelperLog, TApiAllowedListeners, TEthereumAccount, TSigner, TSubstrateAccount, IForeignAssetMetadata, TNetworks, MoonbeamAssetInfo, DemocracyStandardAccountVote, AcalaAssetMetadata} from './types';
 
 export class CrossAccountId implements ICrossAccountId {
   Substrate?: TSubstrateAccount;
@@ -252,6 +252,19 @@
     isSuccess = isSuccess && amount === transfer.amount;
     return isSuccess;
   }
+
+  static bigIntToDecimals(number: bigint, decimals = 18) {
+    const numberStr = number.toString();
+    const dotPos = numberStr.length - decimals;
+  
+    if (dotPos <= 0) {
+      return '0.' + '0'.repeat(Math.abs(dotPos)) + numberStr;
+    } else {
+      const intPart = numberStr.substring(0, dotPos);
+      const fractPart = numberStr.substring(dotPos);
+      return intPart + '.' + fractPart;
+    }
+  }
 }
 
 class UniqueEventHelper {
@@ -308,19 +321,25 @@
   }
 }
 
-class ChainHelperBase {
+export class ChainHelperBase {
+  helperBase: any;
+
   transactionStatus = UniqueUtil.transactionStatus;
   chainLogType = UniqueUtil.chainLogType;
   util: typeof UniqueUtil;
   eventHelper: typeof UniqueEventHelper;
   logger: ILogger;
   api: ApiPromise | null;
-  forcedNetwork: TUniqueNetworks | null;
-  network: TUniqueNetworks | null;
+  forcedNetwork: TNetworks | null;
+  network: TNetworks | null;
   chainLog: IUniqueHelperLog[];
   children: ChainHelperBase[];
+  address: AddressGroup;
+  chain: ChainGroup;
 
-  constructor(logger?: ILogger) {
+  constructor(logger?: ILogger, helperBase?: any) {
+    this.helperBase = helperBase;
+
     this.util = UniqueUtil;
     this.eventHelper = UniqueEventHelper;
     if (typeof logger == 'undefined') logger = this.util.getDefaultLogger();
@@ -330,8 +349,23 @@
     this.network = null;
     this.chainLog = [];
     this.children = [];
+    this.address = new AddressGroup(this);
+    this.chain = new ChainGroup(this);
   }
 
+  clone(helperCls: ChainHelperBaseConstructor, options: {[key: string]: any} = {}) {
+    Object.setPrototypeOf(helperCls.prototype, this);
+    const newHelper = new helperCls(this.logger, options);
+
+    newHelper.api = this.api;
+    newHelper.network = this.network;
+    newHelper.forceNetwork = this.forceNetwork;
+
+    this.children.push(newHelper);
+
+    return newHelper;
+  }
+
   getApi(): ApiPromise {
     if(this.api === null) throw Error('API not initialized');
     return this.api;
@@ -341,7 +375,7 @@
     this.chainLog = [];
   }
 
-  forceNetwork(value: TUniqueNetworks): void {
+  forceNetwork(value: TNetworks): void {
     this.forcedNetwork = value;
   }
 
@@ -367,13 +401,17 @@
     this.network = null;
   }
 
-  static async detectNetwork(api: ApiPromise): Promise<TUniqueNetworks> {
+  static async detectNetwork(api: ApiPromise): Promise<TNetworks> {
     const spec = (await api.query.system.lastRuntimeUpgrade()).toJSON() as any;
+    const xcmChains = ['rococo', 'westend', 'westmint', 'acala', 'karura', 'moonbeam', 'moonriver'];
+
+    if(xcmChains.indexOf(spec.specName) > -1) return spec.specName;
+
     if(['quartz', 'unique'].indexOf(spec.specName) > -1) return spec.specName;
     return 'opal';
   }
 
-  static async detectNetworkByWsEndpoint(wsEndpoint: string): Promise<TUniqueNetworks> {
+  static async detectNetworkByWsEndpoint(wsEndpoint: string): Promise<TNetworks> {
     const api = new ApiPromise({provider: new WsProvider(wsEndpoint)});
     await api.isReady;
 
@@ -384,9 +422,9 @@
     return network;
   }
 
-  static async createConnection(wsEndpoint: string, listeners?: IApiListeners, network?: TUniqueNetworks | null): Promise<{
+  static async createConnection(wsEndpoint: string, listeners?: IApiListeners, network?: TNetworks | null): Promise<{
     api: ApiPromise;
-    network: TUniqueNetworks;
+    network: TNetworks;
   }> {
     if(typeof network === 'undefined' || network === null) network = 'opal';
     const supportedRPC = {
@@ -399,6 +437,13 @@
       unique: {
         unique: require('@unique-nft/unique-mainnet-types/definitions').unique.rpc,
       },
+      rococo: {},
+      westend: {},
+      moonbeam: {},
+      moonriver: {},
+      acala: {},
+      karura: {},
+      westmint: {},
     };
     if(!supportedRPC.hasOwnProperty(network)) network = await this.detectNetworkByWsEndpoint(wsEndpoint);
     const rpc = supportedRPC[network];
@@ -590,16 +635,16 @@
 }
 
 
-class HelperGroup {
-  helper: UniqueHelper;
+class HelperGroup<T extends ChainHelperBase> {
+  helper: T;
 
-  constructor(uniqueHelper: UniqueHelper) {
+  constructor(uniqueHelper: T) {
     this.helper = uniqueHelper;
   }
 }
 
 
-class CollectionGroup extends HelperGroup {
+class CollectionGroup extends HelperGroup<UniqueHelper> {
   /**
  * Get number of blocks when sponsored transaction is available.
  *
@@ -2000,7 +2045,7 @@
 }
 
 
-class ChainGroup extends HelperGroup {
+class ChainGroup extends HelperGroup<ChainHelperBase> {
   /**
    * Get system properties of a chain
    * @example getChainProperties();
@@ -2054,10 +2099,106 @@
   }
 }
 
+class SubstrateBalanceGroup<T extends ChainHelperBase> extends HelperGroup<T> {
+  /**
+ * Get substrate address balance
+ * @param address substrate address
+ * @example getSubstrate("5GrwvaEF5zXb26Fz...")
+ * @returns amount of tokens on address
+ */
+  async getSubstrate(address: TSubstrateAccount): Promise<bigint> {
+    return (await this.helper.callRpc('api.query.system.account', [address])).data.free.toBigInt();
+  }
+
+  /**
+   * Transfer tokens to substrate address
+   * @param signer keyring of signer
+   * @param address substrate address of a recipient
+   * @param amount amount of tokens to be transfered
+   * @example transferToSubstrate(aliceKeyring, "5GrwvaEF5zXb26Fz...", 100_000_000_000n);
+   * @returns ```true``` if extrinsic success, otherwise ```false```
+   */
+  async transferToSubstrate(signer: TSigner, address: TSubstrateAccount, amount: bigint | string): Promise<boolean> {
+    const result = await this.helper.executeExtrinsic(signer, 'api.tx.balances.transfer', [address, amount], true/*, `Unable to transfer balance from ${this.helper.getSignerAddress(signer)} to ${address}`*/);
+
+    let transfer = {from: null, to: null, amount: 0n} as any;
+    result.result.events.forEach(({event: {data, method, section}}) => {
+      if ((section === 'balances') && (method === 'Transfer')) {
+        transfer = {
+          from: this.helper.address.normalizeSubstrate(data[0]),
+          to: this.helper.address.normalizeSubstrate(data[1]),
+          amount: BigInt(data[2]),
+        };
+      }
+    });
+    const isSuccess = this.helper.address.normalizeSubstrate(typeof signer === 'string' ? signer : signer.address) === transfer.from 
+      && this.helper.address.normalizeSubstrate(address) === transfer.to 
+      && BigInt(amount) === transfer.amount;
+    return isSuccess;
+  }
+
+  /**
+   * Get full substrate balance including free, miscFrozen, feeFrozen, and reserved
+   * @param address substrate address
+   * @returns
+   */
+  async getSubstrateFull(address: TSubstrateAccount): Promise<ISubstrateBalance> {
+    const accountInfo = (await this.helper.callRpc('api.query.system.account', [address])).data;
+    return {free: accountInfo.free.toBigInt(), miscFrozen: accountInfo.miscFrozen.toBigInt(), feeFrozen: accountInfo.feeFrozen.toBigInt(), reserved: accountInfo.reserved.toBigInt()};
+  }
+}
+
+class EthereumBalanceGroup<T extends ChainHelperBase> extends HelperGroup<T> {
+  /**
+   * Get ethereum address balance
+   * @param address ethereum address
+   * @example getEthereum("0x9F0583DbB855d...")
+   * @returns amount of tokens on address
+   */
+  async getEthereum(address: TEthereumAccount): Promise<bigint> {
+    return (await this.helper.callRpc('api.rpc.eth.getBalance', [address])).toBigInt();
+  }
 
-class BalanceGroup extends HelperGroup {
+  /**
+   * Transfer tokens to address
+   * @param signer keyring of signer
+   * @param address Ethereum address of a recipient
+   * @param amount amount of tokens to be transfered
+   * @example transferToEthereum(alithKeyring, "0x9F0583DbB855d...", 100_000_000_000n);
+   * @returns ```true``` if extrinsic success, otherwise ```false```
+   */
+  async transferToEthereum(signer: TSigner, address: TEthereumAccount, amount: bigint | string): Promise<boolean> {
+    const result = await this.helper.executeExtrinsic(signer, 'api.tx.balances.transfer', [address, amount], true);
+
+    let transfer = {from: null, to: null, amount: 0n} as any;
+    result.result.events.forEach(({event: {data, method, section}}) => {
+      if ((section === 'balances') && (method === 'Transfer')) {
+        transfer = {
+          from: data[0].toString(),
+          to: data[1].toString(),
+          amount: BigInt(data[2]),
+        };
+      }
+    });
+    const isSuccess = (typeof signer === 'string' ? signer : signer.address) === transfer.from 
+      && address === transfer.to 
+      && BigInt(amount) === transfer.amount;
+    return isSuccess;
+  }
+}
+
+class BalanceGroup<T extends ChainHelperBase> extends HelperGroup<T> {
+  subBalanceGroup: SubstrateBalanceGroup<T>;
+  ethBalanceGroup: EthereumBalanceGroup<T>;
+
+  constructor(helper: T) {
+    super(helper);
+    this.subBalanceGroup = new SubstrateBalanceGroup(helper);
+    this.ethBalanceGroup = new EthereumBalanceGroup(helper);
+  }
+
   getCollectionCreationPrice(): bigint {
-    return 2n * this.helper.balance.getOneTokenNominal();
+    return 2n * this.getOneTokenNominal();
   }
   /**
    * Representation of the native token in the smallest unit - one OPAL (OPL), QUARTZ (QTZ), or UNIQUE (UNQ).
@@ -2076,7 +2217,7 @@
    * @returns amount of tokens on address
    */
   async getSubstrate(address: TSubstrateAccount): Promise<bigint> {
-    return (await this.helper.callRpc('api.query.system.account', [address])).data.free.toBigInt();
+    return this.subBalanceGroup.getSubstrate(address);
   }
 
   /**
@@ -2085,8 +2226,7 @@
    * @returns
    */
   async getSubstrateFull(address: TSubstrateAccount): Promise<ISubstrateBalance> {
-    const accountInfo = (await this.helper.callRpc('api.query.system.account', [address])).data;
-    return {free: accountInfo.free.toBigInt(), miscFrozen: accountInfo.miscFrozen.toBigInt(), feeFrozen: accountInfo.feeFrozen.toBigInt(), reserved: accountInfo.reserved.toBigInt()};
+    return this.subBalanceGroup.getSubstrateFull(address);
   }
 
   /**
@@ -2096,7 +2236,7 @@
    * @returns amount of tokens on address
    */
   async getEthereum(address: TEthereumAccount): Promise<bigint> {
-    return (await this.helper.callRpc('api.rpc.eth.getBalance', [address])).toBigInt();
+    return this.ethBalanceGroup.getEthereum(address);
   }
 
   /**
@@ -2108,27 +2248,11 @@
    * @returns ```true``` if extrinsic success, otherwise ```false```
    */
   async transferToSubstrate(signer: TSigner, address: TSubstrateAccount, amount: bigint | string): Promise<boolean> {
-    const result = await this.helper.executeExtrinsic(signer, 'api.tx.balances.transfer', [address, amount], true/*, `Unable to transfer balance from ${this.helper.getSignerAddress(signer)} to ${address}`*/);
-
-    let transfer = {from: null, to: null, amount: 0n} as any;
-    result.result.events.forEach(({event: {data, method, section}}) => {
-      if ((section === 'balances') && (method === 'Transfer')) {
-        transfer = {
-          from: this.helper.address.normalizeSubstrate(data[0]),
-          to: this.helper.address.normalizeSubstrate(data[1]),
-          amount: BigInt(data[2]),
-        };
-      }
-    });
-    const isSuccess = this.helper.address.normalizeSubstrate(typeof signer === 'string' ? signer : signer.address) === transfer.from 
-      && this.helper.address.normalizeSubstrate(address) === transfer.to 
-      && BigInt(amount) === transfer.amount;
-    return isSuccess;
+    return this.subBalanceGroup.transferToSubstrate(signer, address, amount);
   }
 }
 
-
-class AddressGroup extends HelperGroup {
+class AddressGroup extends HelperGroup<ChainHelperBase> {
   /**
    * Normalizes the address to the specified ss58 format, by default ```42```.
    * @param address substrate address
@@ -2170,9 +2294,20 @@
   substrateToEth(subAddress: TSubstrateAccount): TEthereumAccount {
     return CrossAccountId.translateSubToEth(subAddress);
   }
+
+  paraSiblingSovereignAccount(paraid: number) {
+    // We are getting a *sibling* parachain sovereign account,
+    // so we need a sibling prefix: encoded(b"sibl") == 0x7369626c
+    const siblingPrefix = '0x7369626c';
+
+    const encodedParaId = this.helper.getApi().createType('u32', paraid).toHex(true).substring(2);
+    const suffix = '000000000000000000000000000000000000000000000000';
+
+    return siblingPrefix + encodedParaId + suffix;
+  }
 }
 
-class StakingGroup extends HelperGroup {
+class StakingGroup extends HelperGroup<UniqueHelper> {
   /**
    * Stake tokens for App Promotion
    * @param signer keyring of signer
@@ -2258,7 +2393,7 @@
   }
 }
 
-class SchedulerGroup extends HelperGroup {
+class SchedulerGroup extends HelperGroup<UniqueHelper> {
   constructor(helper: UniqueHelper) {
     super(helper);
   }
@@ -2314,53 +2449,281 @@
   }
 }
 
+class ForeignAssetsGroup extends HelperGroup<UniqueHelper> {
+  async register(signer: TSigner, ownerAddress: TSubstrateAccount, location: any, metadata: IForeignAssetMetadata) {
+    await this.helper.executeExtrinsic(
+      signer,
+      'api.tx.foreignAssets.registerForeignAsset',
+      [ownerAddress, location, metadata],
+      true,
+    );
+  }
+
+  async update(signer: TSigner, foreignAssetId: number, location: any, metadata: IForeignAssetMetadata) {
+    await this.helper.executeExtrinsic(
+      signer,
+      'api.tx.foreignAssets.updateForeignAsset',
+      [foreignAssetId, location, metadata],
+      true,
+    );
+  }
+}
+
+class XcmGroup<T extends ChainHelperBase> extends HelperGroup<T> {
+  palletName: string;
+
+  constructor(helper: T, palletName: string) {
+    super(helper);
+
+    this.palletName = palletName;
+  }
+
+  async limitedReserveTransferAssets(signer: TSigner, destination: any, beneficiary: any, assets: any, feeAssetItem: number, weightLimit: number) {
+    await this.helper.executeExtrinsic(signer, `api.tx.${this.palletName}.limitedReserveTransferAssets`, [destination, beneficiary, assets, feeAssetItem, {Limited: weightLimit}], true);
+  }
+}
+
+class XTokensGroup<T extends ChainHelperBase> extends HelperGroup<T> {
+  async transfer(signer: TSigner, currencyId: any, amount: bigint, destination: any, destWeight: number) {
+    await this.helper.executeExtrinsic(signer, 'api.tx.xTokens.transfer', [currencyId, amount, destination, destWeight], true);
+  }
+
+  async transferMultiasset(signer: TSigner, asset: any, destination: any, destWeight: number) {
+    await this.helper.executeExtrinsic(signer, 'api.tx.xTokens.transferMultiasset', [asset, destination, destWeight], true);
+  }
+
+  async transferMulticurrencies(signer: TSigner, currencies: any[], feeItem: number, destLocation: any, destWeight: number) {
+    await this.helper.executeExtrinsic(signer, 'api.tx.xTokens.transferMulticurrencies', [currencies, feeItem, destLocation, destWeight], true);
+  }
+}
+
+class TokensGroup<T extends ChainHelperBase> extends HelperGroup<T> {
+  async accounts(address: string, currencyId: any) {
+    const {free} = (await this.helper.callRpc('api.query.tokens.accounts', [address, currencyId])).toJSON() as any;
+    return BigInt(free);
+  }
+}
+
+class AssetsGroup<T extends ChainHelperBase> extends HelperGroup<T> {
+  async create(signer: TSigner, assetId: number, admin: string, minimalBalance: bigint) {
+    await this.helper.executeExtrinsic(signer, 'api.tx.assets.create', [assetId, admin, minimalBalance], true);
+  }
+
+  async setMetadata(signer: TSigner, assetId: number, name: string, symbol: string, decimals: number) {
+    await this.helper.executeExtrinsic(signer, 'api.tx.assets.setMetadata', [assetId, name, symbol, decimals], true);
+  }
+
+  async mint(signer: TSigner, assetId: number, beneficiary: string, amount: bigint) {
+    await this.helper.executeExtrinsic(signer, 'api.tx.assets.mint', [assetId, beneficiary, amount], true);
+  }
+
+  async account(assetId: string | number, address: string) {
+    const accountAsset = (
+      await this.helper.callRpc('api.query.assets.account', [assetId, address])
+    ).toJSON()! as any;
+
+    if (accountAsset !== null) {
+      return BigInt(accountAsset['balance']);
+    } else {
+      return null;
+    }
+  }
+}
+
+class AcalaAssetRegistryGroup extends HelperGroup<AcalaHelper> {
+  async registerForeignAsset(signer: TSigner, destination: any, metadata: AcalaAssetMetadata) {
+    await this.helper.executeExtrinsic(signer, 'api.tx.assetRegistry.registerForeignAsset', [destination, metadata], true);
+  }
+}
+
+class MoonbeamAssetManagerGroup extends HelperGroup<MoonbeamHelper> {
+  makeRegisterForeignAssetProposal(assetInfo: MoonbeamAssetInfo) {
+    const apiPrefix = 'api.tx.assetManager.';
+
+    const registerTx = this.helper.constructApiCall(
+      apiPrefix + 'registerForeignAsset',
+      [assetInfo.location, assetInfo.metadata, assetInfo.existentialDeposit, assetInfo.isSufficient],
+    );
+
+    const setUnitsTx = this.helper.constructApiCall(
+      apiPrefix + 'setAssetUnitsPerSecond',
+      [assetInfo.location, assetInfo.unitsPerSecond, assetInfo.numAssetsWeightHint],
+    );
+
+    const batchCall = this.helper.getApi().tx.utility.batchAll([registerTx, setUnitsTx]);
+    const encodedProposal = batchCall?.method.toHex() || '';
+    return encodedProposal;
+  }
+
+  async assetTypeId(location: any) {
+    return await this.helper.callRpc('api.query.assetManager.assetTypeId', [location]);
+  }
+}
+
+class MoonbeamDemocracyGroup extends HelperGroup<MoonbeamHelper> {
+  async notePreimage(signer: TSigner, encodedProposal: string) {
+    await this.helper.executeExtrinsic(signer, 'api.tx.democracy.notePreimage', [encodedProposal], true);
+  }
+
+  externalProposeMajority(proposalHash: string) {
+    return this.helper.constructApiCall('api.tx.democracy.externalProposeMajority', [proposalHash]);
+  }
+
+  fastTrack(proposalHash: string, votingPeriod: number, delayPeriod: number) {
+    return this.helper.constructApiCall('api.tx.democracy.fastTrack', [proposalHash, votingPeriod, delayPeriod]);
+  }
+
+  async referendumVote(signer: TSigner, referendumIndex: number, accountVote: DemocracyStandardAccountVote) {
+    await this.helper.executeExtrinsic(signer, 'api.tx.democracy.vote', [referendumIndex, {Standard: accountVote}], true);
+  }
+}
+
+class MoonbeamCollectiveGroup extends HelperGroup<MoonbeamHelper> {
+  collective: string;
+
+  constructor(helper: MoonbeamHelper, collective: string) {
+    super(helper);
+
+    this.collective = collective;
+  }
+
+  async propose(signer: TSigner, threshold: number, proposalHash: string, lengthBound: number) {
+    await this.helper.executeExtrinsic(signer, `api.tx.${this.collective}.propose`, [threshold, proposalHash, lengthBound], true);
+  }
+
+  async vote(signer: TSigner, proposalHash: string, proposalIndex: number, approve: boolean) {
+    await this.helper.executeExtrinsic(signer, `api.tx.${this.collective}.vote`, [proposalHash, proposalIndex, approve], true);
+  }
+
+  async close(signer: TSigner, proposalHash: string, proposalIndex: number, weightBound: number, lengthBound: number) {
+    await this.helper.executeExtrinsic(signer, `api.tx.${this.collective}.close`, [proposalHash, proposalIndex, weightBound, lengthBound], true);
+  }
+
+  async proposalCount() {
+    return Number(await this.helper.callRpc(`api.query.${this.collective}.proposalCount`, []));
+  }
+}
+
+export type ChainHelperBaseConstructor = new(...args: any[]) => ChainHelperBase;
 export type UniqueHelperConstructor = new(...args: any[]) => UniqueHelper;
 
 export class UniqueHelper extends ChainHelperBase {
-  helperBase: any;
-
-  chain: ChainGroup;
-  balance: BalanceGroup;
-  address: AddressGroup;
+  balance: BalanceGroup<UniqueHelper>;
   collection: CollectionGroup;
   nft: NFTGroup;
   rft: RFTGroup;
   ft: FTGroup;
   staking: StakingGroup;
   scheduler: SchedulerGroup;
+  foreignAssets: ForeignAssetsGroup;
+  xcm: XcmGroup<UniqueHelper>;
+  xTokens: XTokensGroup<UniqueHelper>;
+  tokens: TokensGroup<UniqueHelper>;
 
   constructor(logger?: ILogger, options: {[key: string]: any} = {}) {
-    super(logger);
-
-    this.helperBase = options.helperBase ?? UniqueHelper;
+    super(logger, options.helperBase ?? UniqueHelper);
 
-    this.chain = new ChainGroup(this);
     this.balance = new BalanceGroup(this);
-    this.address = new AddressGroup(this);
     this.collection = new CollectionGroup(this);
     this.nft = new NFTGroup(this);
     this.rft = new RFTGroup(this);
     this.ft = new FTGroup(this);
     this.staking = new StakingGroup(this);
     this.scheduler = new SchedulerGroup(this);
+    this.foreignAssets = new ForeignAssetsGroup(this);
+    this.xcm = new XcmGroup(this, 'polkadotXcm');
+    this.xTokens = new XTokensGroup(this);
+    this.tokens = new TokensGroup(this);
   }
 
-  clone(helperCls: UniqueHelperConstructor, options: {[key: string]: any} = {}) {
-    Object.setPrototypeOf(helperCls.prototype, this);
-    const newHelper = new helperCls(this.logger, options);
+  getSudo<T extends UniqueHelper>() {
+    // eslint-disable-next-line @typescript-eslint/naming-convention
+    const SudoHelperType = SudoHelper(this.helperBase);
+    return this.clone(SudoHelperType) as T;
+  }
+}
+
+export class XcmChainHelper extends ChainHelperBase {
+  async connect(wsEndpoint: string, _listeners?: any): Promise<void> {
+    const wsProvider = new WsProvider(wsEndpoint);
+    this.api = new ApiPromise({
+      provider: wsProvider,
+    });
+    await this.api.isReadyOrError;
+    this.network = await UniqueHelper.detectNetwork(this.api);
+  }
+}
 
-    newHelper.api = this.api;
-    newHelper.network = this.network;
-    newHelper.forceNetwork = this.forceNetwork;
+export class RelayHelper extends XcmChainHelper {
+  xcm: XcmGroup<RelayHelper>;
 
-    this.children.push(newHelper);
+  constructor(logger?: ILogger, options: {[key: string]: any} = {}) {
+    super(logger, options.helperBase ?? RelayHelper);
 
-    return newHelper;
+    this.xcm = new XcmGroup(this, 'xcmPallet');
   }
+}
 
-  getSudo<T extends UniqueHelper>() {
+export class WestmintHelper extends XcmChainHelper {
+  balance: SubstrateBalanceGroup<WestmintHelper>;
+  xcm: XcmGroup<WestmintHelper>;
+  assets: AssetsGroup<WestmintHelper>;
+  xTokens: XTokensGroup<WestmintHelper>;
+
+  constructor(logger?: ILogger, options: {[key: string]: any} = {}) {
+    super(logger, options.helperBase ?? WestmintHelper);
+
+    this.balance = new SubstrateBalanceGroup(this);
+    this.xcm = new XcmGroup(this, 'polkadotXcm');
+    this.assets = new AssetsGroup(this);
+    this.xTokens = new XTokensGroup(this);
+  }
+}
+
+export class MoonbeamHelper extends XcmChainHelper {
+  balance: EthereumBalanceGroup<MoonbeamHelper>;
+  assetManager: MoonbeamAssetManagerGroup;
+  assets: AssetsGroup<MoonbeamHelper>;
+  xTokens: XTokensGroup<MoonbeamHelper>;
+  democracy: MoonbeamDemocracyGroup;
+  collective: {
+    council: MoonbeamCollectiveGroup,
+    techCommittee: MoonbeamCollectiveGroup,
+  };
+
+  constructor(logger?: ILogger, options: {[key: string]: any} = {}) {
+    super(logger, options.helperBase ?? MoonbeamHelper);
+
+    this.balance = new EthereumBalanceGroup(this);
+    this.assetManager = new MoonbeamAssetManagerGroup(this);
+    this.assets = new AssetsGroup(this);
+    this.xTokens = new XTokensGroup(this);
+    this.democracy = new MoonbeamDemocracyGroup(this);
+    this.collective = {
+      council: new MoonbeamCollectiveGroup(this, 'councilCollective'),
+      techCommittee: new MoonbeamCollectiveGroup(this, 'techCommitteeCollective'),
+    };
+  }
+}
+
+export class AcalaHelper extends XcmChainHelper {
+  balance: SubstrateBalanceGroup<AcalaHelper>;
+  assetRegistry: AcalaAssetRegistryGroup;
+  xTokens: XTokensGroup<AcalaHelper>;
+  tokens: TokensGroup<AcalaHelper>;
+
+  constructor(logger?: ILogger, options: {[key: string]: any} = {}) {
+    super(logger, options.helperBase ?? AcalaHelper);
+
+    this.balance = new SubstrateBalanceGroup(this);
+    this.assetRegistry = new AcalaAssetRegistryGroup(this);
+    this.xTokens = new XTokensGroup(this);
+    this.tokens = new TokensGroup(this);
+  }
+
+  getSudo<T extends AcalaHelper>() {
     // eslint-disable-next-line @typescript-eslint/naming-convention
-    const SudoHelperType = SudoUniqueHelper(this.helperBase);
+    const SudoHelperType = SudoHelper(this.helperBase);
     return this.clone(SudoHelperType) as T;
   }
 }
@@ -2411,7 +2774,7 @@
 }
 
 // eslint-disable-next-line @typescript-eslint/naming-convention
-function SudoUniqueHelper<T extends UniqueHelperConstructor>(Base: T) {
+function SudoHelper<T extends ChainHelperBaseConstructor>(Base: T) {
   return class extends Base {
     constructor(...args: any[]) {
       super(...args);

--- a/tests/src/xcm/xcmOpal.test.ts
+++ b/tests/src/xcm/xcmOpal.test.ts
@@ -14,33 +14,22 @@
 // You should have received a copy of the GNU General Public License
 // along with Unique Network. If not, see <http://www.gnu.org/licenses/>.
 
-import chai from 'chai';
-import chaiAsPromised from 'chai-as-promised';
-
-import {WsProvider} from '@polkadot/api';
-import {ApiOptions} from '@polkadot/api/types';
 import {IKeyringPair} from '@polkadot/types/types';
-import usingApi, {executeTransaction} from './../substrate/substrate-api';
-import {bigIntToDecimals, describeXCM, getGenericResult, paraSiblingSovereignAccount, normalizeAccountId} from './../deprecated-helpers/helpers';
-import waitNewBlocks from './../substrate/wait-new-blocks';
-import getBalance from './../substrate/get-balance';
-
-
-chai.use(chaiAsPromised);
-const expect = chai.expect;
+import config from '../config';
+import {itSub, expect, describeXCM, usingPlaygrounds, usingWestmintPlaygrounds, usingRelayPlaygrounds} from '../util';
 
 const STATEMINE_CHAIN = 1000;
 const UNIQUE_CHAIN = 2095;
 
-const RELAY_PORT = '9844';
-const UNIQUE_PORT = '9944';
-const STATEMINE_PORT = '9948';
+const relayUrl = config.relayUrl;
+const westmintUrl = config.westmintUrl;
+
 const STATEMINE_PALLET_INSTANCE = 50;
 const ASSET_ID = 100;
 const ASSET_METADATA_DECIMALS = 18;
 const ASSET_METADATA_NAME = 'USDT';
 const ASSET_METADATA_DESCRIPTION = 'USDT';
-const ASSET_METADATA_MINIMAL_BALANCE = 1;
+const ASSET_METADATA_MINIMAL_BALANCE = 1n;
 
 const WESTMINT_DECIMALS = 12;
 
@@ -69,58 +58,26 @@
 
 
   before(async () => {
-    console.log('hey babe its opal');
-    await usingApi(async (api, privateKeyWrapper) => {
-      alice = privateKeyWrapper('//Alice');
-      bob = privateKeyWrapper('//Bob'); // funds donor
+    await usingPlaygrounds(async (_helper, privateKey) => {
+      alice = await privateKey('//Alice');
+      bob = await privateKey('//Bob'); // funds donor
     });
 
-    const statemineApiOptions: ApiOptions = {
-      provider: new WsProvider('ws://127.0.0.1:' + STATEMINE_PORT),
-    };
-
-    const uniqueApiOptions: ApiOptions = {
-      provider: new WsProvider('ws://127.0.0.1:' + UNIQUE_PORT),
-    };
-
-    const relayApiOptions: ApiOptions = {
-      provider: new WsProvider('ws://127.0.0.1:' + RELAY_PORT),
-    };
-
-    await usingApi(async (api) => {
-
+    await usingWestmintPlaygrounds(westmintUrl, async (helper) => {
       // 350.00 (three hundred fifty) DOT
-      const fundingAmount = 3_500_000_000_000; 
-
-      const tx = api.tx.assets.create(ASSET_ID, alice.addressRaw, ASSET_METADATA_MINIMAL_BALANCE);
-      const events = await executeTransaction(api, alice, tx);
-      const result = getGenericResult(events);
-      expect(result.success).to.be.true;
-
-      // set metadata
-      const tx2 = api.tx.assets.setMetadata(ASSET_ID, ASSET_METADATA_NAME, ASSET_METADATA_DESCRIPTION, ASSET_METADATA_DECIMALS);
-      const events2 = await executeTransaction(api, alice, tx2);
-      const result2 = getGenericResult(events2);
-      expect(result2.success).to.be.true;
+      const fundingAmount = 3_500_000_000_000n; 
 
-      // mint some amount of asset
-      const tx3 = api.tx.assets.mint(ASSET_ID, alice.addressRaw, ASSET_AMOUNT);
-      const events3 = await executeTransaction(api, alice, tx3);
-      const result3 = getGenericResult(events3);
-      expect(result3.success).to.be.true;
+      await helper.assets.create(alice, ASSET_ID, alice.address, ASSET_METADATA_MINIMAL_BALANCE);
+      await helper.assets.setMetadata(alice, ASSET_ID, ASSET_METADATA_NAME, ASSET_METADATA_DESCRIPTION, ASSET_METADATA_DECIMALS);
+      await helper.assets.mint(alice, ASSET_ID, alice.address, ASSET_AMOUNT);
 
       // funding parachain sovereing account (Parachain: 2095)
-      const parachainSovereingAccount = await paraSiblingSovereignAccount(UNIQUE_CHAIN);
-      const tx4 = api.tx.balances.transfer(parachainSovereingAccount, fundingAmount);
-      const events4 = await executeTransaction(api, bob, tx4);
-      const result4 = getGenericResult(events4);
-      expect(result4.success).to.be.true;
+      const parachainSovereingAccount = helper.address.paraSiblingSovereignAccount(UNIQUE_CHAIN);
+      await helper.balance.transferToSubstrate(bob, parachainSovereingAccount, fundingAmount);
+    });
 
-    }, statemineApiOptions);
 
-
-    await usingApi(async (api) => {
-
+    await usingPlaygrounds(async (helper) => {
       const location = {
         V1: {
           parents: 1,
@@ -145,20 +102,13 @@
         decimals: ASSET_METADATA_DECIMALS,
         minimalBalance: ASSET_METADATA_MINIMAL_BALANCE,
       };
-      //registerForeignAsset(owner, location, metadata)
-      const tx = api.tx.foreignAssets.registerForeignAsset(alice.addressRaw, location, metadata);
-      const sudoTx = api.tx.sudo.sudo(tx as any);
-      const events = await executeTransaction(api, alice, sudoTx);
-      const result = getGenericResult(events);
-      expect(result.success).to.be.true;
-
-      [balanceOpalBefore] = await getBalance(api, [alice.address]);
-
-    }, uniqueApiOptions);
+      await helper.getSudo().foreignAssets.register(alice, alice.address, location, metadata);
+      balanceOpalBefore = await helper.balance.getSubstrate(alice.address);
+    });
 
 
     // Providing the relay currency to the unique sender account
-    await usingApi(async (api) => {
+    await usingRelayPlaygrounds(relayUrl, async (helper) => {
       const destination = {
         V1: {
           parents: 0,
@@ -197,31 +147,15 @@
       };
 
       const feeAssetItem = 0;
+      const weightLimit = 5_000_000_000;
 
-      const weightLimit = {
-        Limited: 5_000_000_000,
-      };
-
-      const tx = api.tx.xcmPallet.limitedReserveTransferAssets(destination, beneficiary, assets, feeAssetItem, weightLimit);
-      const events = await executeTransaction(api, alice, tx);
-      const result = getGenericResult(events);
-      expect(result.success).to.be.true;
-    }, relayApiOptions);
+      await helper.xcm.limitedReserveTransferAssets(alice, destination, beneficiary, assets, feeAssetItem, weightLimit);
+    });
   
   });
 
-  it('Should connect and send USDT from Westmint to Opal', async () => {
-    
-    const statemineApiOptions: ApiOptions = {
-      provider: new WsProvider('ws://127.0.0.1:' + STATEMINE_PORT),
-    };
-
-    const uniqueApiOptions: ApiOptions = {
-      provider: new WsProvider('ws://127.0.0.1:' + UNIQUE_PORT),
-    };
-
-    await usingApi(async (api) => {
-
+  itSub('Should connect and send USDT from Westmint to Opal', async ({helper}) => {
+    await usingWestmintPlaygrounds(westmintUrl, async (helper) => {
       const dest = {
         V1: {
           parents: 1,
@@ -268,146 +202,105 @@
       };
 
       const feeAssetItem = 0;
-
-      const weightLimit = {
-        Limited: 5000000000,
-      };
-
-      [balanceStmnBefore] = await getBalance(api, [alice.address]);
+      const weightLimit = 5000000000;
 
-      const tx = api.tx.polkadotXcm.limitedReserveTransferAssets(dest, beneficiary, assets, feeAssetItem, weightLimit);
-      const events = await executeTransaction(api, alice, tx);
-      const result = getGenericResult(events);
-      expect(result.success).to.be.true;
+      balanceStmnBefore = await helper.balance.getSubstrate(alice.address);
+      await helper.xcm.limitedReserveTransferAssets(alice, dest, beneficiary, assets, feeAssetItem, weightLimit);
 
-      [balanceStmnAfter] = await getBalance(api, [alice.address]);
+      balanceStmnAfter = await helper.balance.getSubstrate(alice.address);
 
       // common good parachain take commission in it native token
       console.log(
         'Opal to Westmint transaction fees on Westmint: %s WND',
-        bigIntToDecimals(balanceStmnBefore - balanceStmnAfter, WESTMINT_DECIMALS),
+        helper.util.bigIntToDecimals(balanceStmnBefore - balanceStmnAfter, WESTMINT_DECIMALS),
       );
       expect(balanceStmnBefore > balanceStmnAfter).to.be.true;
 
-    }, statemineApiOptions);
+    });
 
 
     // ensure that asset has been delivered
-    await usingApi(async (api) => {
-      await waitNewBlocks(api, 3);
-      // expext collection id will be with id 1
-      const free = (await api.query.fungible.balance(1, normalizeAccountId(alice.address))).toBigInt();
+    await helper.wait.newBlocks(3);
 
-      [balanceOpalAfter] = await getBalance(api, [alice.address]);
+    // expext collection id will be with id 1
+    const free = await helper.ft.getBalance(1, {Substrate: alice.address});
 
-      // commission has not paid in USDT token
-      expect(free == TRANSFER_AMOUNT).to.be.true;
-      console.log(
-        'Opal to Westmint transaction fees on Opal: %s USDT',
-        bigIntToDecimals(TRANSFER_AMOUNT - free),
-      );
-      // ... and parachain native token
-      expect(balanceOpalAfter == balanceOpalBefore).to.be.true;
-      console.log(
-        'Opal to Westmint transaction fees on Opal: %s WND',
-        bigIntToDecimals(balanceOpalAfter - balanceOpalBefore, WESTMINT_DECIMALS),
-      );
+    balanceOpalAfter = await helper.balance.getSubstrate(alice.address);
 
-    }, uniqueApiOptions);
-    
+    // commission has not paid in USDT token
+    expect(free == TRANSFER_AMOUNT).to.be.true;
+    console.log(
+      'Opal to Westmint transaction fees on Opal: %s USDT',
+      helper.util.bigIntToDecimals(TRANSFER_AMOUNT - free),
+    );
+    // ... and parachain native token
+    expect(balanceOpalAfter == balanceOpalBefore).to.be.true;
+    console.log(
+      'Opal to Westmint transaction fees on Opal: %s WND',
+      helper.util.bigIntToDecimals(balanceOpalAfter - balanceOpalBefore, WESTMINT_DECIMALS),
+    );    
   });
-
-  it('Should connect and send USDT from Unique to Statemine back', async () => {
-
-    const uniqueApiOptions: ApiOptions = {
-      provider: new WsProvider('ws://127.0.0.1:' + UNIQUE_PORT),
-    };
-
-    const statemineApiOptions: ApiOptions = {
-      provider: new WsProvider('ws://127.0.0.1:' + STATEMINE_PORT),
-    };
-
-    await usingApi(async (api) => {
-      const destination = {
-        V1: {
-          parents: 1,
-          interior: {X2: [
-            {
-              Parachain: STATEMINE_CHAIN,
-            },
-            {
-              AccountId32: {
-                network: 'Any',
-                id: alice.addressRaw,
-              },
-            },
-          ]},
-        },
-      };
 
-      const currencies: [any, bigint][] = [
-        [
+  itSub('Should connect and send USDT from Unique to Statemine back', async ({helper}) => {
+    const destination = {
+      V1: {
+        parents: 1,
+        interior: {X2: [
           {
-            ForeignAssetId: 0,
+            Parachain: STATEMINE_CHAIN,
           },
-          //10_000_000_000_000_000n,
-          TRANSFER_AMOUNT,
-        ], 
-        [
           {
-            NativeAssetId: 'Parent',
+            AccountId32: {
+              network: 'Any',
+              id: alice.addressRaw,
+            },
           },
-          400_000_000_000_000n,
-        ],
-      ];
+        ]},
+      },
+    };
 
-      const feeItem = 1;
-      const destWeight = 500000000000;
+    const currencies: [any, bigint][] = [
+      [
+        {
+          ForeignAssetId: 0,
+        },
+        //10_000_000_000_000_000n,
+        TRANSFER_AMOUNT,
+      ], 
+      [
+        {
+          NativeAssetId: 'Parent',
+        },
+        400_000_000_000_000n,
+      ],
+    ];
 
-      const tx = api.tx.xTokens.transferMulticurrencies(currencies, feeItem, destination, destWeight);
-      const events = await executeTransaction(api, alice, tx);
-      const result = getGenericResult(events);
-      expect(result.success).to.be.true;
-      
-      // the commission has been paid in parachain native token
-      [balanceOpalFinal] = await getBalance(api, [alice.address]);
-      expect(balanceOpalAfter > balanceOpalFinal).to.be.true;
-    }, uniqueApiOptions);
+    const feeItem = 1;
+    const destWeight = 500000000000;
 
-    await usingApi(async (api) => {
-      await waitNewBlocks(api, 3);
+    await helper.xTokens.transferMulticurrencies(alice, currencies, feeItem, destination, destWeight);
+    
+    // the commission has been paid in parachain native token
+    balanceOpalFinal = await helper.balance.getSubstrate(alice.address);
+    expect(balanceOpalAfter > balanceOpalFinal).to.be.true;
+
+    await usingWestmintPlaygrounds(westmintUrl, async (helper) => {
+      await helper.wait.newBlocks(3);
       
       // The USDT token never paid fees. Its amount not changed from begin value.
       // Also check that xcm transfer has been succeeded 
-      const free = ((await api.query.assets.account(100, alice.address)).toHuman()) as any;
-      expect(BigInt(free.balance.replace(/,/g, '')) == ASSET_AMOUNT).to.be.true;
-    }, statemineApiOptions);
+      expect((await helper.assets.account(ASSET_ID, alice.address))! == ASSET_AMOUNT).to.be.true;
+    });
   });
 
-  it('Should connect and send Relay token to Unique', async () => {
-
-    const uniqueApiOptions: ApiOptions = {
-      provider: new WsProvider('ws://127.0.0.1:' + UNIQUE_PORT),
-    };
-
-    const uniqueApiOptions2: ApiOptions = {
-      provider: new WsProvider('ws://127.0.0.1:' + UNIQUE_PORT),
-    };
-
-    const relayApiOptions: ApiOptions = {
-      provider: new WsProvider('ws://127.0.0.1:' + RELAY_PORT),
-    };
-
+  itSub('Should connect and send Relay token to Unique', async ({helper}) => {
     const TRANSFER_AMOUNT_RELAY = 50_000_000_000_000_000n;
 
-    await usingApi(async (api) => {
-      [balanceBobBefore] = await getBalance(api, [bob.address]);
-      balanceBobRelayTokenBefore = BigInt(((await api.query.tokens.accounts(bob.addressRaw, {NativeAssetId: 'Parent'})).toJSON() as any).free);
-
-    }, uniqueApiOptions);
+    balanceBobBefore = await helper.balance.getSubstrate(bob.address);
+    balanceBobRelayTokenBefore = await helper.tokens.accounts(bob.address, {NativeAssetId: 'Parent'});
 
     // Providing the relay currency to the unique sender account
-    await usingApi(async (api) => {
+    await usingRelayPlaygrounds(relayUrl, async (helper) => {
       const destination = {
         V1: {
           parents: 0,
@@ -446,82 +339,62 @@
       };
 
       const feeAssetItem = 0;
-
-      const weightLimit = {
-        Limited: 5_000_000_000,
-      };
+      const weightLimit = 5_000_000_000;
 
-      const tx = api.tx.xcmPallet.limitedReserveTransferAssets(destination, beneficiary, assets, feeAssetItem, weightLimit);
-      const events = await executeTransaction(api, bob, tx);
-      const result = getGenericResult(events);
-      expect(result.success).to.be.true;
-    }, relayApiOptions);
+      await helper.xcm.limitedReserveTransferAssets(bob, destination, beneficiary, assets, feeAssetItem, weightLimit);
+    });
   
+    await helper.wait.newBlocks(3);
 
-    await usingApi(async (api) => {
-      await waitNewBlocks(api, 3);
+    balanceBobAfter = await helper.balance.getSubstrate(bob.address);  
+    balanceBobRelayTokenAfter = await helper.tokens.accounts(bob.address, {NativeAssetId: 'Parent'});
 
-      [balanceBobAfter] = await getBalance(api, [bob.address]);
-      balanceBobRelayTokenAfter = BigInt(((await api.query.tokens.accounts(bob.addressRaw, {NativeAssetId: 'Parent'})).toJSON() as any).free);
-      const wndFee = balanceBobRelayTokenAfter - TRANSFER_AMOUNT_RELAY - balanceBobRelayTokenBefore; 
-      console.log(
-        'Relay (Westend) to Opal transaction fees: %s OPL',
-        bigIntToDecimals(balanceBobAfter - balanceBobBefore),
-      );
-      console.log(
-        'Relay (Westend) to Opal transaction fees: %s WND',
-        bigIntToDecimals(wndFee, WESTMINT_DECIMALS),
-      );
-      expect(balanceBobBefore == balanceBobAfter).to.be.true;
-      expect(balanceBobRelayTokenBefore < balanceBobRelayTokenAfter).to.be.true;
-    }, uniqueApiOptions2);
-
+    const wndFee = balanceBobRelayTokenAfter - TRANSFER_AMOUNT_RELAY - balanceBobRelayTokenBefore; 
+    console.log(
+      'Relay (Westend) to Opal transaction fees: %s OPL',
+      helper.util.bigIntToDecimals(balanceBobAfter - balanceBobBefore),
+    );
+    console.log(
+      'Relay (Westend) to Opal transaction fees: %s WND',
+      helper.util.bigIntToDecimals(wndFee, WESTMINT_DECIMALS),
+    );
+    expect(balanceBobBefore == balanceBobAfter).to.be.true;
+    expect(balanceBobRelayTokenBefore < balanceBobRelayTokenAfter).to.be.true;
   });
 
-  it('Should connect and send Relay token back', async () => {
-    const uniqueApiOptions: ApiOptions = {
-      provider: new WsProvider('ws://127.0.0.1:' + UNIQUE_PORT),
+  itSub('Should connect and send Relay token back', async ({helper}) => {
+    const destination = {
+      V1: {
+        parents: 1,
+        interior: {X2: [
+          {
+            Parachain: STATEMINE_CHAIN,
+          },
+          {
+            AccountId32: {
+              network: 'Any',
+              id: bob.addressRaw,
+            },
+          },
+        ]},
+      },
     };
 
-    await usingApi(async (api) => {
-      const destination = {
-        V1: {
-          parents: 1,
-          interior: {X2: [
-            {
-              Parachain: STATEMINE_CHAIN,
-            },
-            {
-              AccountId32: {
-                network: 'Any',
-                id: bob.addressRaw,
-              },
-            },
-          ]},
+    const currencies: any = [
+      [
+        {
+          NativeAssetId: 'Parent',
         },
-      };
+        50_000_000_000_000_000n,
+      ],
+    ];
 
-      const currencies: any = [
-        [
-          {
-            NativeAssetId: 'Parent',
-          },
-          50_000_000_000_000_000n,
-        ],
-      ];
-
-      const feeItem = 0;
-      const destWeight = 500000000000;
-
-      const tx = api.tx.xTokens.transferMulticurrencies(currencies, feeItem, destination, destWeight);
-      const events = await executeTransaction(api, bob, tx);
-      const result = getGenericResult(events);
-      expect(result.success).to.be.true;
+    const feeItem = 0;
+    const destWeight = 500000000000;
 
-      [balanceBobFinal] = await getBalance(api, [bob.address]);
-      console.log('Relay (Westend) to Opal transaction fees: %s OPL', balanceBobAfter - balanceBobFinal);
+    await helper.xTokens.transferMulticurrencies(bob, currencies, feeItem, destination, destWeight);
 
-    }, uniqueApiOptions);
+    balanceBobFinal = await helper.balance.getSubstrate(bob.address);
+    console.log('Relay (Westend) to Opal transaction fees: %s OPL', balanceBobAfter - balanceBobFinal);
   });
-
 });

--- a/tests/src/xcm/xcmQuartz.test.ts
+++ b/tests/src/xcm/xcmQuartz.test.ts
@@ -14,53 +14,24 @@
 // You should have received a copy of the GNU General Public License
 // along with Unique Network. If not, see <http://www.gnu.org/licenses/>.
 
-import chai from 'chai';
-import chaiAsPromised from 'chai-as-promised';
-
-import {WsProvider, Keyring} from '@polkadot/api';
-import {ApiOptions} from '@polkadot/api/types';
 import {IKeyringPair} from '@polkadot/types/types';
-import usingApi, {submitTransactionAsync} from '../substrate/substrate-api';
-import {getGenericResult, generateKeyringPair, waitEvent, describeXCM, bigIntToDecimals} from '../deprecated-helpers/helpers';
-import {MultiLocation} from '@polkadot/types/interfaces';
 import {blake2AsHex} from '@polkadot/util-crypto';
-import waitNewBlocks from '../substrate/wait-new-blocks';
-import getBalance from '../substrate/get-balance';
+import config from '../config';
 import {XcmV2TraitsOutcome, XcmV2TraitsError} from '../interfaces';
-
-chai.use(chaiAsPromised);
-const expect = chai.expect;
+import {itSub, expect, describeXCM, usingPlaygrounds, usingKaruraPlaygrounds, usingRelayPlaygrounds, usingMoonriverPlaygrounds} from '../util';
 
 const QUARTZ_CHAIN = 2095;
 const KARURA_CHAIN = 2000;
 const MOONRIVER_CHAIN = 2023;
 
-const RELAY_PORT = 9844;
-const KARURA_PORT = 9946;
-const MOONRIVER_PORT = 9947;
+const relayUrl = config.relayUrl;
+const karuraUrl = config.karuraUrl;
+const moonriverUrl = config.moonriverUrl;
 
 const KARURA_DECIMALS = 12;
 
 const TRANSFER_AMOUNT = 2000000000000000000000000n;
 
-function parachainApiOptions(port: number): ApiOptions {
-  return {
-    provider: new WsProvider('ws://127.0.0.1:' + port.toString()),
-  };
-}
-
-function karuraOptions(): ApiOptions {
-  return parachainApiOptions(KARURA_PORT);
-}
-
-function moonriverOptions(): ApiOptions {
-  return parachainApiOptions(MOONRIVER_PORT);
-}
-
-function relayOptions(): ApiOptions {
-  return parachainApiOptions(RELAY_PORT);
-}
-
 describeXCM('[XCM] Integration test: Exchanging tokens with Karura', () => {
   let alice: IKeyringPair;
   let randomAccount: IKeyringPair;
@@ -76,219 +47,162 @@
   let balanceQuartzForeignTokenFinal: bigint;
 
   before(async () => {
-    console.log('hey babe');
-    await usingApi(async (api, privateKeyWrapper) => {
-      const keyringSr25519 = new Keyring({type: 'sr25519'});
-
-      alice = privateKeyWrapper('//Alice');
-      randomAccount = generateKeyringPair(keyringSr25519);
+    await usingPlaygrounds(async (helper, privateKey) => {
+      alice = await privateKey('//Alice');
+      [randomAccount] = await helper.arrange.createAccounts([0n], alice);
     });
 
-    // Karura side
-    await usingApi(
-      async (api) => {
-        const destination = {
-          V0: {
-            X2: [
-              'Parent',
-              {
-                Parachain: QUARTZ_CHAIN,
-              },
-            ],
-          },
-        };
-
-        const metadata = {
-          name: 'QTZ',
-          symbol: 'QTZ',
-          decimals: 18,
-          minimalBalance: 1,
-        };
-
-        const tx = api.tx.assetRegistry.registerForeignAsset(destination, metadata);
-        const sudoTx = api.tx.sudo.sudo(tx as any);
-        const events = await submitTransactionAsync(alice, sudoTx);
-        const result = getGenericResult(events);
-        expect(result.success).to.be.true;
-
-        const tx1 = api.tx.balances.transfer(randomAccount.address, 10000000000000n);
-        const events1 = await submitTransactionAsync(alice, tx1);
-        const result1 = getGenericResult(events1);
-        expect(result1.success).to.be.true;
-
-        [balanceKaruraTokenInit] = await getBalance(api, [randomAccount.address]);
-        {
-          const {free} = (await api.query.tokens.accounts(randomAccount.addressRaw, {ForeignAsset: 0})).toJSON() as any;
-          balanceQuartzForeignTokenInit = BigInt(free);
-        }
-      },
-      karuraOptions(),
-    );
-
-    // Quartz side
-    await usingApi(async (api) => {
-      const tx0 = api.tx.balances.transfer(randomAccount.address, 10n * TRANSFER_AMOUNT);
-      const events0 = await submitTransactionAsync(alice, tx0);
-      const result0 = getGenericResult(events0);
-      expect(result0.success).to.be.true;
-
-      [balanceQuartzTokenInit] = await getBalance(api, [randomAccount.address]);
-    });
-  });
-
-  it('Should connect and send QTZ to Karura', async () => {
-
-    // Quartz side
-    await usingApi(async (api) => {
-
+    await usingKaruraPlaygrounds(karuraUrl, async (helper) => {
       const destination = {
         V0: {
           X2: [
             'Parent',
             {
-              Parachain: KARURA_CHAIN,
+              Parachain: QUARTZ_CHAIN,
             },
           ],
         },
       };
 
-      const beneficiary = {
-        V0: {
-          X1: {
-            AccountId32: {
-              network: 'Any',
-              id: randomAccount.addressRaw,
-            },
-          },
-        },
+      const metadata = {
+        name: 'QTZ',
+        symbol: 'QTZ',
+        decimals: 18,
+        minimalBalance: 1n,
       };
 
-      const assets = {
-        V1: [
+      await helper.getSudo().assetRegistry.registerForeignAsset(alice, destination, metadata);
+      await helper.balance.transferToSubstrate(alice, randomAccount.address, 10000000000000n);
+      balanceKaruraTokenInit = await helper.balance.getSubstrate(randomAccount.address);
+      balanceQuartzForeignTokenInit = await helper.tokens.accounts(randomAccount.address, {ForeignAsset: 0});
+    });
+
+    await usingPlaygrounds(async (helper) => {
+      await helper.balance.transferToSubstrate(alice, randomAccount.address, 10n * TRANSFER_AMOUNT);
+      balanceQuartzTokenInit = await helper.balance.getSubstrate(randomAccount.address);
+    });
+  });
+
+  itSub('Should connect and send QTZ to Karura', async ({helper}) => {
+    const destination = {
+      V0: {
+        X2: [
+          'Parent',
           {
-            id: {
-              Concrete: {
-                parents: 0,
-                interior: 'Here',
-              },
-            },
-            fun: {
-              Fungible: TRANSFER_AMOUNT,
-            },
+            Parachain: KARURA_CHAIN,
           },
         ],
-      };
-
-      const feeAssetItem = 0;
+      },
+    };
 
-      const weightLimit = {
-        Limited: 5000000000,
-      };
+    const beneficiary = {
+      V0: {
+        X1: {
+          AccountId32: {
+            network: 'Any',
+            id: randomAccount.addressRaw,
+          },
+        },
+      },
+    };
 
-      const tx = api.tx.polkadotXcm.limitedReserveTransferAssets(destination, beneficiary, assets, feeAssetItem, weightLimit);
-      const events = await submitTransactionAsync(randomAccount, tx);
-      const result = getGenericResult(events);
-      expect(result.success).to.be.true;
+    const assets = {
+      V1: [
+        {
+          id: {
+            Concrete: {
+              parents: 0,
+              interior: 'Here',
+            },
+          },
+          fun: {
+            Fungible: TRANSFER_AMOUNT,
+          },
+        },
+      ],
+    };
 
-      [balanceQuartzTokenMiddle] = await getBalance(api, [randomAccount.address]);
+    const feeAssetItem = 0;
+    const weightLimit = 5000000000;
 
-      const qtzFees = balanceQuartzTokenInit - balanceQuartzTokenMiddle - TRANSFER_AMOUNT;
-      console.log('[Quartz -> Karura] transaction fees on Quartz: %s QTZ', bigIntToDecimals(qtzFees));
-      expect(qtzFees > 0n).to.be.true;
-    });
+    await helper.xcm.limitedReserveTransferAssets(randomAccount, destination, beneficiary, assets, feeAssetItem, weightLimit);
+    balanceQuartzTokenMiddle = await helper.balance.getSubstrate(randomAccount.address);
 
-    // Karura side
-    await usingApi(
-      async (api) => {
-        await waitNewBlocks(api, 3);
-        const {free} = (await api.query.tokens.accounts(randomAccount.addressRaw, {ForeignAsset: 0})).toJSON() as any;
-        balanceQuartzForeignTokenMiddle = BigInt(free);
+    const qtzFees = balanceQuartzTokenInit - balanceQuartzTokenMiddle - TRANSFER_AMOUNT;
+    console.log('[Quartz -> Karura] transaction fees on Quartz: %s QTZ', helper.util.bigIntToDecimals(qtzFees));
+    expect(qtzFees > 0n).to.be.true;
 
-        [balanceKaruraTokenMiddle] = await getBalance(api, [randomAccount.address]);
+    await usingKaruraPlaygrounds(karuraUrl, async (helper) => {
+      await helper.wait.newBlocks(3);
+      balanceQuartzForeignTokenMiddle = await helper.tokens.accounts(randomAccount.address, {ForeignAsset: 0});
+      balanceKaruraTokenMiddle = await helper.balance.getSubstrate(randomAccount.address);
 
-        const karFees = balanceKaruraTokenInit - balanceKaruraTokenMiddle;
-        const qtzIncomeTransfer = balanceQuartzForeignTokenMiddle - balanceQuartzForeignTokenInit;
+      const karFees = balanceKaruraTokenInit - balanceKaruraTokenMiddle;
+      const qtzIncomeTransfer = balanceQuartzForeignTokenMiddle - balanceQuartzForeignTokenInit;
 
-        console.log(
-          '[Quartz -> Karura] transaction fees on Karura: %s KAR',
-          bigIntToDecimals(karFees, KARURA_DECIMALS),
-        );
-        console.log('[Quartz -> Karura] income %s QTZ', bigIntToDecimals(qtzIncomeTransfer));
-        expect(karFees == 0n).to.be.true;
-        expect(qtzIncomeTransfer == TRANSFER_AMOUNT).to.be.true;
-      },
-      karuraOptions(),
-    );
+      console.log(
+        '[Quartz -> Karura] transaction fees on Karura: %s KAR',
+        helper.util.bigIntToDecimals(karFees, KARURA_DECIMALS),
+      );
+      console.log('[Quartz -> Karura] income %s QTZ', helper.util.bigIntToDecimals(qtzIncomeTransfer));
+      expect(karFees == 0n).to.be.true;
+      expect(qtzIncomeTransfer == TRANSFER_AMOUNT).to.be.true;
+    });
   });
 
-  it('Should connect to Karura and send QTZ back', async () => {
-
-    // Karura side
-    await usingApi(
-      async (api) => {
-        const destination = {
-          V1: {
-            parents: 1,
-            interior: {
-              X2: [
-                {Parachain: QUARTZ_CHAIN},
-                {
-                  AccountId32: {
-                    network: 'Any',
-                    id: randomAccount.addressRaw,
-                  },
+  itSub('Should connect to Karura and send QTZ back', async ({helper}) => {
+    await usingKaruraPlaygrounds(karuraUrl, async (helper) => {
+      const destination = {
+        V1: {
+          parents: 1,
+          interior: {
+            X2: [
+              {Parachain: QUARTZ_CHAIN},
+              {
+                AccountId32: {
+                  network: 'Any',
+                  id: randomAccount.addressRaw,
                 },
-              ],
-            },
+              },
+            ],
           },
-        };
-
-        const id = {
-          ForeignAsset: 0,
-        };
+        },
+      };
 
-        const destWeight = 50000000;
+      const id = {
+        ForeignAsset: 0,
+      };
 
-        const tx = api.tx.xTokens.transfer(id as any, TRANSFER_AMOUNT, destination, destWeight);
-        const events = await submitTransactionAsync(randomAccount, tx);
-        const result = getGenericResult(events);
-        expect(result.success).to.be.true;
+      const destWeight = 50000000;
 
-        [balanceKaruraTokenFinal] = await getBalance(api, [randomAccount.address]);
-        {
-          const {free} = (await api.query.tokens.accounts(randomAccount.addressRaw, id)).toJSON() as any;
-          balanceQuartzForeignTokenFinal = BigInt(free);
-        }
+      await helper.xTokens.transfer(randomAccount, id, TRANSFER_AMOUNT, destination, destWeight);
+      balanceKaruraTokenFinal = await helper.balance.getSubstrate(randomAccount.address);
+      balanceQuartzForeignTokenFinal = await helper.tokens.accounts(randomAccount.address, id);
 
-        const karFees = balanceKaruraTokenMiddle - balanceKaruraTokenFinal;
-        const qtzOutcomeTransfer = balanceQuartzForeignTokenMiddle - balanceQuartzForeignTokenFinal;
+      const karFees = balanceKaruraTokenMiddle - balanceKaruraTokenFinal;
+      const qtzOutcomeTransfer = balanceQuartzForeignTokenMiddle - balanceQuartzForeignTokenFinal;
 
-        console.log(
-          '[Karura -> Quartz] transaction fees on Karura: %s KAR',
-          bigIntToDecimals(karFees, KARURA_DECIMALS),
-        );
-        console.log('[Karura -> Quartz] outcome %s QTZ', bigIntToDecimals(qtzOutcomeTransfer));
+      console.log(
+        '[Karura -> Quartz] transaction fees on Karura: %s KAR',
+        helper.util.bigIntToDecimals(karFees, KARURA_DECIMALS),
+      );
+      console.log('[Karura -> Quartz] outcome %s QTZ', helper.util.bigIntToDecimals(qtzOutcomeTransfer));
 
-        expect(karFees > 0).to.be.true;
-        expect(qtzOutcomeTransfer == TRANSFER_AMOUNT).to.be.true;
-      },
-      karuraOptions(),
-    );
+      expect(karFees > 0).to.be.true;
+      expect(qtzOutcomeTransfer == TRANSFER_AMOUNT).to.be.true;
+    });
 
-    // Quartz side
-    await usingApi(async (api) => {
-      await waitNewBlocks(api, 3);
+    await helper.wait.newBlocks(3);
 
-      [balanceQuartzTokenFinal] = await getBalance(api, [randomAccount.address]);
-      const actuallyDelivered = balanceQuartzTokenFinal - balanceQuartzTokenMiddle;
-      expect(actuallyDelivered > 0).to.be.true;
+    balanceQuartzTokenFinal = await helper.balance.getSubstrate(randomAccount.address);
+    const actuallyDelivered = balanceQuartzTokenFinal - balanceQuartzTokenMiddle;
+    expect(actuallyDelivered > 0).to.be.true;
 
-      console.log('[Karura -> Quartz] actually delivered %s QTZ', bigIntToDecimals(actuallyDelivered));
+    console.log('[Karura -> Quartz] actually delivered %s QTZ', helper.util.bigIntToDecimals(actuallyDelivered));
 
-      const qtzFees = TRANSFER_AMOUNT - actuallyDelivered;
-      console.log('[Karura -> Quartz] transaction fees on Quartz: %s QTZ', bigIntToDecimals(qtzFees));
-      expect(qtzFees == 0n).to.be.true;
-    });
+    const qtzFees = TRANSFER_AMOUNT - actuallyDelivered;
+    console.log('[Karura -> Quartz] transaction fees on Quartz: %s QTZ', helper.util.bigIntToDecimals(qtzFees));
+    expect(qtzFees == 0n).to.be.true;
   });
 });
 
@@ -297,13 +211,13 @@
   let alice: IKeyringPair;
 
   before(async () => {
-    await usingApi(async (api, privateKeyWrapper) => {
-      alice = privateKeyWrapper('//Alice');
+    await usingPlaygrounds(async (_helper, privateKey) => {
+      alice = await privateKey('//Alice');
     });
   });
 
-  it('Quartz rejects tokens from the Relay', async () => {
-    await usingApi(async (api) => {
+  itSub('Quartz rejects tokens from the Relay', async ({helper}) => {
+    await usingRelayPlaygrounds(relayUrl, async (helper) => {
       const destination = {
         V1: {
           parents: 0,
@@ -342,49 +256,37 @@
       };
 
       const feeAssetItem = 0;
+      const weightLimit = 5_000_000_000;
 
-      const weightLimit = {
-        Limited: 5_000_000_000,
-      };
+      await helper.xcm.limitedReserveTransferAssets(alice, destination, beneficiary, assets, feeAssetItem, weightLimit);
+    });
 
-      const tx = api.tx.xcmPallet.limitedReserveTransferAssets(destination, beneficiary, assets, feeAssetItem, weightLimit);
-      const events = await submitTransactionAsync(alice, tx);
-      const result = getGenericResult(events);
-      expect(result.success).to.be.true;
-    }, relayOptions());
+    const maxWaitBlocks = 3;
 
-    await usingApi(async api => {
-      const maxWaitBlocks = 3;
-      const dmpQueueExecutedDownward = await waitEvent(
-        api,
-        maxWaitBlocks,
-        'dmpQueue',
-        'ExecutedDownward',
-      );
+    const dmpQueueExecutedDownward = await helper.wait.event(maxWaitBlocks, 'dmpQueue', 'ExecutedDownward');
 
-      expect(
-        dmpQueueExecutedDownward != null,
-        '[Relay] dmpQueue.ExecutedDownward event is expected',
-      ).to.be.true;
+    expect(
+      dmpQueueExecutedDownward != null,
+      '[Relay] dmpQueue.ExecutedDownward event is expected',
+    ).to.be.true;
 
-      const event = dmpQueueExecutedDownward!.event;
-      const outcome = event.data[1] as XcmV2TraitsOutcome;
+    const event = dmpQueueExecutedDownward!.event;
+    const outcome = event.data[1] as XcmV2TraitsOutcome;
 
-      expect(
-        outcome.isIncomplete,
-        '[Relay] The outcome of the XCM should be `Incomplete`',
-      ).to.be.true;
+    expect(
+      outcome.isIncomplete,
+      '[Relay] The outcome of the XCM should be `Incomplete`',
+    ).to.be.true;
 
-      const incomplete = outcome.asIncomplete;
-      expect(
-        incomplete[1].toString() == 'AssetNotFound',
-        '[Relay] The XCM error should be `AssetNotFound`',
-      ).to.be.true;
-    });
+    const incomplete = outcome.asIncomplete;
+    expect(
+      incomplete[1].toString() == 'AssetNotFound',
+      '[Relay] The XCM error should be `AssetNotFound`',
+    ).to.be.true;
   });
 
-  it('Quartz rejects KAR tokens from Karura', async () => {
-    await usingApi(async (api) => {
+  itSub('Quartz rejects KAR tokens from Karura', async ({helper}) => {
+    await usingKaruraPlaygrounds(karuraUrl, async (helper) => {
       const destination = {
         V1: {
           parents: 1,
@@ -408,35 +310,31 @@
 
       const destWeight = 50000000;
 
-      const tx = api.tx.xTokens.transfer(id as any, 100_000_000_000, destination, destWeight);
-      const events = await submitTransactionAsync(alice, tx);
-      const result = getGenericResult(events);
-      expect(result.success).to.be.true;
-    }, karuraOptions());
+      await helper.xTokens.transfer(alice, id, 100_000_000_000n, destination, destWeight);
+    });
 
-    await usingApi(async api => {
-      const maxWaitBlocks = 3;
-      const xcmpQueueFailEvent = await waitEvent(api, maxWaitBlocks, 'xcmpQueue', 'Fail');
+    const maxWaitBlocks = 3;
+
+    const xcmpQueueFailEvent = await helper.wait.event(maxWaitBlocks, 'xcmpQueue', 'Fail');
 
-      expect(
-        xcmpQueueFailEvent != null,
-        '[Karura] xcmpQueue.FailEvent event is expected',
-      ).to.be.true;
+    expect(
+      xcmpQueueFailEvent != null,
+      '[Karura] xcmpQueue.FailEvent event is expected',
+    ).to.be.true;
 
-      const event = xcmpQueueFailEvent!.event;
-      const outcome = event.data[1] as XcmV2TraitsError;
+    const event = xcmpQueueFailEvent!.event;
+    const outcome = event.data[1] as XcmV2TraitsError;
 
-      expect(
-        outcome.isUntrustedReserveLocation,
-        '[Karura] The XCM error should be `UntrustedReserveLocation`',
-      ).to.be.true;
-    });
+    expect(
+      outcome.isUntrustedReserveLocation,
+      '[Karura] The XCM error should be `UntrustedReserveLocation`',
+    ).to.be.true;
   });
 });
 
 describeXCM('[XCM] Integration test: Exchanging QTZ with Moonriver', () => {
   // Quartz constants
-  let quartzAlice: IKeyringPair;
+  let quartzDonor: IKeyringPair;
   let quartzAssetLocation;
 
   let randomAccountQuartz: IKeyringPair;
@@ -444,15 +342,6 @@
 
   // Moonriver constants
   let assetId: string;
-
-  const moonriverKeyring = new Keyring({type: 'ethereum'});
-  const alithPrivateKey = '0x5fb92d6e98884f76de468fa3f6278f8807c48bebc13595d45af5bdc4da702133';
-  const baltatharPrivateKey = '0x8075991ce870b93a8870eca0c0f91913d12f47948ca0fd25b49c6fa7cdbeee8b';
-  const dorothyPrivateKey = '0x39539ab1876910bbf3a223d84a29e28f1cb4e2e456503e7e91ed39b2e7223d68';
-
-  const alithAccount = moonriverKeyring.addFromUri(alithPrivateKey, undefined, 'ethereum');
-  const baltatharAccount = moonriverKeyring.addFromUri(baltatharPrivateKey, undefined, 'ethereum');
-  const dorothyAccount = moonriverKeyring.addFromUri(dorothyPrivateKey, undefined, 'ethereum');
 
   const councilVotingThreshold = 2;
   const technicalCommitteeThreshold = 2;
@@ -464,7 +353,7 @@
     symbol: 'xcQTZ',
     decimals: 18,
     isFrozen: false,
-    minimalBalance: 1,
+    minimalBalance: 1n,
   };
 
   let balanceQuartzTokenInit: bigint;
@@ -478,322 +367,229 @@
   let balanceMovrTokenFinal: bigint;
 
   before(async () => {
-    await usingApi(async (api, privateKeyWrapper) => {
-      const keyringEth = new Keyring({type: 'ethereum'});
-      const keyringSr25519 = new Keyring({type: 'sr25519'});
-
-      quartzAlice = privateKeyWrapper('//Alice');
-      randomAccountQuartz = generateKeyringPair(keyringSr25519);
-      randomAccountMoonriver = generateKeyringPair(keyringEth);
+    await usingPlaygrounds(async (helper, privateKey) => {
+      quartzDonor = await privateKey('//Alice');
+      [randomAccountQuartz] = await helper.arrange.createAccounts([0n], quartzDonor);
 
       balanceForeignQtzTokenInit = 0n;
     });
 
-    await usingApi(
-      async (api) => {
+    await usingMoonriverPlaygrounds(moonriverUrl, async (helper) => {
+      const alithAccount = helper.account.alithAccount();
+      const baltatharAccount = helper.account.baltatharAccount();
+      const dorothyAccount = helper.account.dorothyAccount();
 
-        // >>> Sponsoring Dorothy >>>
-        console.log('Sponsoring Dorothy.......');
-        const tx0 = api.tx.balances.transfer(dorothyAccount.address, 11_000_000_000_000_000_000n);
-        const events0 = await submitTransactionAsync(alithAccount, tx0);
-        const result0 = getGenericResult(events0);
-        expect(result0.success).to.be.true;
-        console.log('Sponsoring Dorothy.......DONE');
-        // <<< Sponsoring Dorothy <<<
+      randomAccountMoonriver = helper.account.create();
 
-        const sourceLocation: MultiLocation = api.createType(
-          'MultiLocation',
-          {
-            parents: 1,
-            interior: {X1: {Parachain: QUARTZ_CHAIN}},
-          },
-        );
+      // >>> Sponsoring Dorothy >>>
+      console.log('Sponsoring Dorothy.......');
+      await helper.balance.transferToEthereum(alithAccount, dorothyAccount.address, 11_000_000_000_000_000_000n);
+      console.log('Sponsoring Dorothy.......DONE');
+      // <<< Sponsoring Dorothy <<<
 
-        quartzAssetLocation = {XCM: sourceLocation};
-        const existentialDeposit = 1;
-        const isSufficient = true;
-        const unitsPerSecond = '1';
-        const numAssetsWeightHint = 0;
+      quartzAssetLocation = {
+        XCM: {
+          parents: 1,
+          interior: {X1: {Parachain: QUARTZ_CHAIN}},
+        },
+      };
+      const existentialDeposit = 1n;
+      const isSufficient = true;
+      const unitsPerSecond = 1n;
+      const numAssetsWeightHint = 0;
 
-        const registerTx = api.tx.assetManager.registerForeignAsset(
-          quartzAssetLocation,
-          quartzAssetMetadata,
-          existentialDeposit,
-          isSufficient,
-        );
-        console.log('Encoded proposal for registerAsset is %s', registerTx.method.toHex() || '');
-
-        const setUnitsTx = api.tx.assetManager.setAssetUnitsPerSecond(
-          quartzAssetLocation,
-          unitsPerSecond,
-          numAssetsWeightHint,
-        );
-        console.log('Encoded proposal for setAssetUnitsPerSecond is %s', setUnitsTx.method.toHex() || '');
-
-        const batchCall = api.tx.utility.batchAll([registerTx, setUnitsTx]);
-        console.log('Encoded proposal for batchCall is %s', batchCall.method.toHex() || '');
-
-        // >>> Note motion preimage >>>
-        console.log('Note motion preimage.......');
-        const encodedProposal = batchCall?.method.toHex() || '';
-        const proposalHash = blake2AsHex(encodedProposal);
-        console.log('Encoded proposal for batch utility after schedule is %s', encodedProposal);
-        console.log('Encoded proposal hash for batch utility after schedule is %s', proposalHash);
-        console.log('Encoded length %d', encodedProposal.length);
+      const encodedProposal = helper.assetManager.makeRegisterForeignAssetProposal({
+        location: quartzAssetLocation,
+        metadata: quartzAssetMetadata,
+        existentialDeposit,
+        isSufficient,
+        unitsPerSecond,
+        numAssetsWeightHint,
+      });
+      const proposalHash = blake2AsHex(encodedProposal);
 
-        const tx1 = api.tx.democracy.notePreimage(encodedProposal);
-        const events1 = await submitTransactionAsync(baltatharAccount, tx1);
-        const result1 = getGenericResult(events1);
-        expect(result1.success).to.be.true;
-        console.log('Note motion preimage.......DONE');
-        // <<< Note motion preimage <<<
+      console.log('Encoded proposal for registerForeignAsset & setAssetUnitsPerSecond is %s', encodedProposal);
+      console.log('Encoded length %d', encodedProposal.length);
+      console.log('Encoded proposal hash for batch utility after schedule is %s', proposalHash);
 
-        // >>> Propose external motion through council >>>
-        console.log('Propose external motion through council.......');
-        const externalMotion = api.tx.democracy.externalProposeMajority(proposalHash);
-        const tx2 = api.tx.councilCollective.propose(
-          councilVotingThreshold,
-          externalMotion,
-          externalMotion.encodedLength,
-        );
-        const events2 = await submitTransactionAsync(baltatharAccount, tx2);
-        const result2 = getGenericResult(events2);
-        expect(result2.success).to.be.true;
+      // >>> Note motion preimage >>>
+      console.log('Note motion preimage.......');
+      await helper.democracy.notePreimage(baltatharAccount, encodedProposal);
+      console.log('Note motion preimage.......DONE');
+      // <<< Note motion preimage <<<
 
-        const encodedMotion = externalMotion?.method.toHex() || '';
-        const motionHash = blake2AsHex(encodedMotion);
-        console.log('Motion hash is %s', motionHash);
+      // >>> Propose external motion through council >>>
+      console.log('Propose external motion through council.......');
+      const externalMotion = helper.democracy.externalProposeMajority(proposalHash);
+      const encodedMotion = externalMotion?.method.toHex() || '';
+      const motionHash = blake2AsHex(encodedMotion);
+      console.log('Motion hash is %s', motionHash);
 
-        const tx3 = api.tx.councilCollective.vote(motionHash, 0, true);
-        {
-          const events3 = await submitTransactionAsync(dorothyAccount, tx3);
-          const result3 = getGenericResult(events3);
-          expect(result3.success).to.be.true;
-        }
-        {
-          const events3 = await submitTransactionAsync(baltatharAccount, tx3);
-          const result3 = getGenericResult(events3);
-          expect(result3.success).to.be.true;
-        }
+      await helper.collective.council.propose(baltatharAccount, councilVotingThreshold, externalMotion, externalMotion.encodedLength);
 
-        const tx4 = api.tx.councilCollective.close(motionHash, 0, 1_000_000_000, externalMotion.encodedLength);
-        const events4 = await submitTransactionAsync(dorothyAccount, tx4);
-        const result4 = getGenericResult(events4);
-        expect(result4.success).to.be.true;
-        console.log('Propose external motion through council.......DONE');
-        // <<< Propose external motion through council <<<
+      const councilProposalIdx = await helper.collective.council.proposalCount() - 1;
+      await helper.collective.council.vote(dorothyAccount, motionHash, councilProposalIdx, true);
+      await helper.collective.council.vote(baltatharAccount, motionHash, councilProposalIdx, true);
 
-        // >>> Fast track proposal through technical committee >>>
-        console.log('Fast track proposal through technical committee.......');
-        const fastTrack = api.tx.democracy.fastTrack(proposalHash, votingPeriod, delayPeriod);
-        const tx5 = api.tx.techCommitteeCollective.propose(
-          technicalCommitteeThreshold,
-          fastTrack,
-          fastTrack.encodedLength,
-        );
-        const events5 = await submitTransactionAsync(alithAccount, tx5);
-        const result5 = getGenericResult(events5);
-        expect(result5.success).to.be.true;
+      await helper.collective.council.close(dorothyAccount, motionHash, councilProposalIdx, 1_000_000_000, externalMotion.encodedLength);
+      console.log('Propose external motion through council.......DONE');
+      // <<< Propose external motion through council <<<
 
-        const encodedFastTrack = fastTrack?.method.toHex() || '';
-        const fastTrackHash = blake2AsHex(encodedFastTrack);
-        console.log('FastTrack hash is %s', fastTrackHash);
+      // >>> Fast track proposal through technical committee >>>
+      console.log('Fast track proposal through technical committee.......');
+      const fastTrack = helper.democracy.fastTrack(proposalHash, votingPeriod, delayPeriod);
+      const encodedFastTrack = fastTrack?.method.toHex() || '';
+      const fastTrackHash = blake2AsHex(encodedFastTrack);
+      console.log('FastTrack hash is %s', fastTrackHash);
 
-        const proposalIdx = Number(await api.query.techCommitteeCollective.proposalCount()) - 1;
-        const tx6 = api.tx.techCommitteeCollective.vote(fastTrackHash, proposalIdx, true);
-        {
-          const events6 = await submitTransactionAsync(baltatharAccount, tx6);
-          const result6 = getGenericResult(events6);
-          expect(result6.success).to.be.true;
-        }
-        {
-          const events6 = await submitTransactionAsync(alithAccount, tx6);
-          const result6 = getGenericResult(events6);
-          expect(result6.success).to.be.true;
-        }
+      await helper.collective.techCommittee.propose(alithAccount, technicalCommitteeThreshold, fastTrack, fastTrack.encodedLength);
 
-        const tx7 = api.tx.techCommitteeCollective
-          .close(fastTrackHash, proposalIdx, 1_000_000_000, fastTrack.encodedLength);
-        const events7 = await submitTransactionAsync(baltatharAccount, tx7);
-        const result7 = getGenericResult(events7);
-        expect(result7.success).to.be.true;
-        console.log('Fast track proposal through technical committee.......DONE');
-        // <<< Fast track proposal through technical committee <<<
+      const techProposalIdx = await helper.collective.techCommittee.proposalCount() - 1;
+      await helper.collective.techCommittee.vote(baltatharAccount, fastTrackHash, techProposalIdx, true);
+      await helper.collective.techCommittee.vote(alithAccount, fastTrackHash, techProposalIdx, true);
 
-        // >>> Referendum voting >>>
-        console.log('Referendum voting.......');
-        const tx8 = api.tx.democracy.vote(
-          0,
-          {Standard: {balance: 10_000_000_000_000_000_000n, vote: {aye: true, conviction: 1}}},
-        );
-        const events8 = await submitTransactionAsync(dorothyAccount, tx8);
-        const result8 = getGenericResult(events8);
-        expect(result8.success).to.be.true;
-        console.log('Referendum voting.......DONE');
-        // <<< Referendum voting <<<
+      await helper.collective.techCommittee.close(baltatharAccount, fastTrackHash, techProposalIdx, 1_000_000_000, fastTrack.encodedLength);
+      console.log('Fast track proposal through technical committee.......DONE');
+      // <<< Fast track proposal through technical committee <<<
 
-        // >>> Acquire Quartz AssetId Info on Moonriver >>>
-        console.log('Acquire Quartz AssetId Info on Moonriver.......');
+      // >>> Referendum voting >>>
+      console.log('Referendum voting.......');
+      await helper.democracy.referendumVote(dorothyAccount, 0, {
+        balance: 10_000_000_000_000_000_000n,
+        vote: {aye: true, conviction: 1},
+      });
+      console.log('Referendum voting.......DONE');
+      // <<< Referendum voting <<<
 
-        // Wait for the democracy execute
-        await waitNewBlocks(api, 5);
+      // >>> Acquire Quartz AssetId Info on Moonriver >>>
+      console.log('Acquire Quartz AssetId Info on Moonriver.......');
 
-        assetId = (await api.query.assetManager.assetTypeId({
-          XCM: sourceLocation,
-        })).toString();
+      // Wait for the democracy execute
+      await helper.wait.newBlocks(5);
 
-        console.log('QTZ asset ID is %s', assetId);
-        console.log('Acquire Quartz AssetId Info on Moonriver.......DONE');
-        // >>> Acquire Quartz AssetId Info on Moonriver >>>
+      assetId = (await helper.assetManager.assetTypeId(quartzAssetLocation)).toString();
 
-        // >>> Sponsoring random Account >>>
-        console.log('Sponsoring random Account.......');
-        const tx10 = api.tx.balances.transfer(randomAccountMoonriver.address, 11_000_000_000_000_000_000n);
-        const events10 = await submitTransactionAsync(baltatharAccount, tx10);
-        const result10 = getGenericResult(events10);
-        expect(result10.success).to.be.true;
-        console.log('Sponsoring random Account.......DONE');
-        // <<< Sponsoring random Account <<<
+      console.log('QTZ asset ID is %s', assetId);
+      console.log('Acquire Quartz AssetId Info on Moonriver.......DONE');
+      // >>> Acquire Quartz AssetId Info on Moonriver >>>
 
-        [balanceMovrTokenInit] = await getBalance(api, [randomAccountMoonriver.address]);
-      },
-      moonriverOptions(),
-    );
+      // >>> Sponsoring random Account >>>
+      console.log('Sponsoring random Account.......');
+      await helper.balance.transferToEthereum(baltatharAccount, randomAccountMoonriver.address, 11_000_000_000_000_000_000n);
+      console.log('Sponsoring random Account.......DONE');
+      // <<< Sponsoring random Account <<<
 
-    await usingApi(async (api) => {
-      const tx0 = api.tx.balances.transfer(randomAccountQuartz.address, 10n * TRANSFER_AMOUNT);
-      const events0 = await submitTransactionAsync(quartzAlice, tx0);
-      const result0 = getGenericResult(events0);
-      expect(result0.success).to.be.true;
+      balanceMovrTokenInit = await helper.balance.getEthereum(randomAccountMoonriver.address);
+    });
 
-      [balanceQuartzTokenInit] = await getBalance(api, [randomAccountQuartz.address]);
+    await usingPlaygrounds(async (helper) => {
+      await helper.balance.transferToSubstrate(quartzDonor, randomAccountQuartz.address, 10n * TRANSFER_AMOUNT);
+      balanceQuartzTokenInit = await helper.balance.getSubstrate(randomAccountQuartz.address);
     });
   });
 
-  it('Should connect and send QTZ to Moonriver', async () => {
-    await usingApi(async (api) => {
-      const currencyId = {
-        NativeAssetId: 'Here',
-      };
-      const dest = {
-        V1: {
-          parents: 1,
-          interior: {
-            X2: [
-              {Parachain: MOONRIVER_CHAIN},
-              {AccountKey20: {network: 'Any', key: randomAccountMoonriver.address}},
-            ],
-          },
+  itSub('Should connect and send QTZ to Moonriver', async ({helper}) => {
+    const currencyId = {
+      NativeAssetId: 'Here',
+    };
+    const dest = {
+      V1: {
+        parents: 1,
+        interior: {
+          X2: [
+            {Parachain: MOONRIVER_CHAIN},
+            {AccountKey20: {network: 'Any', key: randomAccountMoonriver.address}},
+          ],
         },
-      };
-      const amount = TRANSFER_AMOUNT;
-      const destWeight = 850000000;
+      },
+    };
+    const amount = TRANSFER_AMOUNT;
+    const destWeight = 850000000;
 
-      const tx = api.tx.xTokens.transfer(currencyId, amount, dest, destWeight);
-      const events = await submitTransactionAsync(randomAccountQuartz, tx);
-      const result = getGenericResult(events);
-      expect(result.success).to.be.true;
+    await helper.xTokens.transfer(randomAccountQuartz, currencyId, amount, dest, destWeight);
 
-      [balanceQuartzTokenMiddle] = await getBalance(api, [randomAccountQuartz.address]);
-      expect(balanceQuartzTokenMiddle < balanceQuartzTokenInit).to.be.true;
+    balanceQuartzTokenMiddle = await helper.balance.getSubstrate(randomAccountQuartz.address);
+    expect(balanceQuartzTokenMiddle < balanceQuartzTokenInit).to.be.true;
 
-      const transactionFees = balanceQuartzTokenInit - balanceQuartzTokenMiddle - TRANSFER_AMOUNT;
-      console.log('[Quartz -> Moonriver] transaction fees on Quartz: %s QTZ', bigIntToDecimals(transactionFees));
-      expect(transactionFees > 0).to.be.true;
-    });
+    const transactionFees = balanceQuartzTokenInit - balanceQuartzTokenMiddle - TRANSFER_AMOUNT;
+    console.log('[Quartz -> Moonriver] transaction fees on Quartz: %s QTZ', helper.util.bigIntToDecimals(transactionFees));
+    expect(transactionFees > 0).to.be.true;
 
-    await usingApi(
-      async (api) => {
-        await waitNewBlocks(api, 3);
+    await usingMoonriverPlaygrounds(moonriverUrl, async (helper) => {
+      await helper.wait.newBlocks(3);
 
-        [balanceMovrTokenMiddle] = await getBalance(api, [randomAccountMoonriver.address]);
+      balanceMovrTokenMiddle = await helper.balance.getEthereum(randomAccountMoonriver.address);
 
-        const movrFees = balanceMovrTokenInit - balanceMovrTokenMiddle;
-        console.log('[Quartz -> Moonriver] transaction fees on Moonriver: %s MOVR',bigIntToDecimals(movrFees));
-        expect(movrFees == 0n).to.be.true;
+      const movrFees = balanceMovrTokenInit - balanceMovrTokenMiddle;
+      console.log('[Quartz -> Moonriver] transaction fees on Moonriver: %s MOVR',helper.util.bigIntToDecimals(movrFees));
+      expect(movrFees == 0n).to.be.true;
 
-        const qtzRandomAccountAsset = (
-          await api.query.assets.account(assetId, randomAccountMoonriver.address)
-        ).toJSON()! as any;
-
-        balanceForeignQtzTokenMiddle = BigInt(qtzRandomAccountAsset['balance']);
-        const qtzIncomeTransfer = balanceForeignQtzTokenMiddle - balanceForeignQtzTokenInit;
-        console.log('[Quartz -> Moonriver] income %s QTZ', bigIntToDecimals(qtzIncomeTransfer));
-        expect(qtzIncomeTransfer == TRANSFER_AMOUNT).to.be.true;
-      },
-      moonriverOptions(),
-    );
+      balanceForeignQtzTokenMiddle = (await helper.assets.account(assetId, randomAccountMoonriver.address))!; // BigInt(qtzRandomAccountAsset['balance']);
+      const qtzIncomeTransfer = balanceForeignQtzTokenMiddle - balanceForeignQtzTokenInit;
+      console.log('[Quartz -> Moonriver] income %s QTZ', helper.util.bigIntToDecimals(qtzIncomeTransfer));
+      expect(qtzIncomeTransfer == TRANSFER_AMOUNT).to.be.true;
+    });
   });
 
-  it('Should connect to Moonriver and send QTZ back', async () => {
-    await usingApi(
-      async (api) => {
-        const asset = {
-          V1: {
-            id: {
-              Concrete: {
-                parents: 1,
-                interior: {
-                  X1: {Parachain: QUARTZ_CHAIN},
-                },
+  itSub('Should connect to Moonriver and send QTZ back', async ({helper}) => {
+    await usingMoonriverPlaygrounds(moonriverUrl, async (helper) => {
+      const asset = {
+        V1: {
+          id: {
+            Concrete: {
+              parents: 1,
+              interior: {
+                X1: {Parachain: QUARTZ_CHAIN},
               },
-            },
-            fun: {
-              Fungible: TRANSFER_AMOUNT,
             },
           },
-        };
-        const destination = {
-          V1: {
-            parents: 1,
-            interior: {
-              X2: [
-                {Parachain: QUARTZ_CHAIN},
-                {AccountId32: {network: 'Any', id: randomAccountQuartz.addressRaw}},
-              ],
-            },
+          fun: {
+            Fungible: TRANSFER_AMOUNT,
           },
-        };
-        const destWeight = 50000000;
+        },
+      };
+      const destination = {
+        V1: {
+          parents: 1,
+          interior: {
+            X2: [
+              {Parachain: QUARTZ_CHAIN},
+              {AccountId32: {network: 'Any', id: randomAccountQuartz.addressRaw}},
+            ],
+          },
+        },
+      };
+      const destWeight = 50000000;
 
-        const tx = api.tx.xTokens.transferMultiasset(asset, destination, destWeight);
-        const events = await submitTransactionAsync(randomAccountMoonriver, tx);
-        const result = getGenericResult(events);
-        expect(result.success).to.be.true;
+      await helper.xTokens.transferMultiasset(randomAccountMoonriver, asset, destination, destWeight);
 
-        [balanceMovrTokenFinal] = await getBalance(api, [randomAccountMoonriver.address]);
+      balanceMovrTokenFinal = await helper.balance.getEthereum(randomAccountMoonriver.address);
 
-        const movrFees = balanceMovrTokenMiddle - balanceMovrTokenFinal;
-        console.log('[Moonriver -> Quartz] transaction fees on Moonriver: %s MOVR', bigIntToDecimals(movrFees));
-        expect(movrFees > 0).to.be.true;
+      const movrFees = balanceMovrTokenMiddle - balanceMovrTokenFinal;
+      console.log('[Moonriver -> Quartz] transaction fees on Moonriver: %s MOVR', helper.util.bigIntToDecimals(movrFees));
+      expect(movrFees > 0).to.be.true;
 
-        const qtzRandomAccountAsset = (
-          await api.query.assets.account(assetId, randomAccountMoonriver.address)
-        ).toJSON()! as any;
+      const qtzRandomAccountAsset = await helper.assets.account(assetId, randomAccountMoonriver.address);
 
-        expect(qtzRandomAccountAsset).to.be.null;
+      expect(qtzRandomAccountAsset).to.be.null;
 
-        balanceForeignQtzTokenFinal = 0n;
+      balanceForeignQtzTokenFinal = 0n;
 
-        const qtzOutcomeTransfer = balanceForeignQtzTokenMiddle - balanceForeignQtzTokenFinal;
-        console.log('[Quartz -> Moonriver] outcome %s QTZ', bigIntToDecimals(qtzOutcomeTransfer));
-        expect(qtzOutcomeTransfer == TRANSFER_AMOUNT).to.be.true;
-      },
-      moonriverOptions(),
-    );
+      const qtzOutcomeTransfer = balanceForeignQtzTokenMiddle - balanceForeignQtzTokenFinal;
+      console.log('[Quartz -> Moonriver] outcome %s QTZ', helper.util.bigIntToDecimals(qtzOutcomeTransfer));
+      expect(qtzOutcomeTransfer == TRANSFER_AMOUNT).to.be.true;
+    });
 
-    await usingApi(async (api) => {
-      await waitNewBlocks(api, 3);
+    await helper.wait.newBlocks(3);
 
-      [balanceQuartzTokenFinal] = await getBalance(api, [randomAccountQuartz.address]);
-      const actuallyDelivered = balanceQuartzTokenFinal - balanceQuartzTokenMiddle;
-      expect(actuallyDelivered > 0).to.be.true;
+    balanceQuartzTokenFinal = await helper.balance.getSubstrate(randomAccountQuartz.address);
+    const actuallyDelivered = balanceQuartzTokenFinal - balanceQuartzTokenMiddle;
+    expect(actuallyDelivered > 0).to.be.true;
 
-      console.log('[Moonriver -> Quartz] actually delivered %s QTZ', bigIntToDecimals(actuallyDelivered));
+    console.log('[Moonriver -> Quartz] actually delivered %s QTZ', helper.util.bigIntToDecimals(actuallyDelivered));
 
-      const qtzFees = TRANSFER_AMOUNT - actuallyDelivered;
-      console.log('[Moonriver -> Quartz] transaction fees on Quartz: %s QTZ', bigIntToDecimals(qtzFees));
-      expect(qtzFees == 0n).to.be.true;
-    });
+    const qtzFees = TRANSFER_AMOUNT - actuallyDelivered;
+    console.log('[Moonriver -> Quartz] transaction fees on Quartz: %s QTZ', helper.util.bigIntToDecimals(qtzFees));
+    expect(qtzFees == 0n).to.be.true;
   });
 });

--- a/tests/src/xcm/xcmUnique.test.ts
+++ b/tests/src/xcm/xcmUnique.test.ts
@@ -14,53 +14,24 @@
 // You should have received a copy of the GNU General Public License
 // along with Unique Network. If not, see <http://www.gnu.org/licenses/>.
 
-import chai from 'chai';
-import chaiAsPromised from 'chai-as-promised';
-
-import {WsProvider, Keyring} from '@polkadot/api';
-import {ApiOptions} from '@polkadot/api/types';
 import {IKeyringPair} from '@polkadot/types/types';
-import usingApi, {submitTransactionAsync} from '../substrate/substrate-api';
-import {getGenericResult, generateKeyringPair, waitEvent, describeXCM, bigIntToDecimals} from '../deprecated-helpers/helpers';
-import {MultiLocation} from '@polkadot/types/interfaces';
 import {blake2AsHex} from '@polkadot/util-crypto';
-import waitNewBlocks from '../substrate/wait-new-blocks';
-import getBalance from '../substrate/get-balance';
+import config from '../config';
 import {XcmV2TraitsError, XcmV2TraitsOutcome} from '../interfaces';
-
-chai.use(chaiAsPromised);
-const expect = chai.expect;
+import {itSub, expect, describeXCM, usingPlaygrounds, usingAcalaPlaygrounds, usingRelayPlaygrounds, usingMoonbeamPlaygrounds} from '../util';
 
 const UNIQUE_CHAIN = 2037;
 const ACALA_CHAIN = 2000;
 const MOONBEAM_CHAIN = 2004;
 
-const RELAY_PORT = 9844;
-const ACALA_PORT = 9946;
-const MOONBEAM_PORT = 9947;
+const relayUrl = config.relayUrl;
+const acalaUrl = config.acalaUrl;
+const moonbeamUrl = config.moonbeamUrl;
 
 const ACALA_DECIMALS = 12;
 
 const TRANSFER_AMOUNT = 2000000000000000000000000n;
 
-function parachainApiOptions(port: number): ApiOptions {
-  return {
-    provider: new WsProvider('ws://127.0.0.1:' + port.toString()),
-  };
-}
-
-function acalaOptions(): ApiOptions {
-  return parachainApiOptions(ACALA_PORT);
-}
-
-function moonbeamOptions(): ApiOptions {
-  return parachainApiOptions(MOONBEAM_PORT);
-}
-
-function relayOptions(): ApiOptions {
-  return parachainApiOptions(RELAY_PORT);
-}
-
 describeXCM('[XCM] Integration test: Exchanging tokens with Acala', () => {
   let alice: IKeyringPair;
   let randomAccount: IKeyringPair;
@@ -76,218 +47,166 @@
   let balanceUniqueForeignTokenFinal: bigint;
 
   before(async () => {
-    await usingApi(async (api, privateKeyWrapper) => {
-      const keyringSr25519 = new Keyring({type: 'sr25519'});
-
-      alice = privateKeyWrapper('//Alice');
-      randomAccount = generateKeyringPair(keyringSr25519);
+    await usingPlaygrounds(async (helper, privateKey) => {
+      alice = await privateKey('//Alice');
+      [randomAccount] = await helper.arrange.createAccounts([0n], alice);
     });
 
-    // Acala side
-    await usingApi(
-      async (api) => {
-        const destination = {
-          V0: {
-            X2: [
-              'Parent',
-              {
-                Parachain: UNIQUE_CHAIN,
-              },
-            ],
-          },
-        };
-
-        const metadata = {
-          name: 'UNQ',
-          symbol: 'UNQ',
-          decimals: 18,
-          minimalBalance: 1,
-        };
-
-        const tx = api.tx.assetRegistry.registerForeignAsset(destination, metadata);
-        const sudoTx = api.tx.sudo.sudo(tx as any);
-        const events = await submitTransactionAsync(alice, sudoTx);
-        const result = getGenericResult(events);
-        expect(result.success).to.be.true;
-
-        const tx1 = api.tx.balances.transfer(randomAccount.address, 10000000000000n);
-        const events1 = await submitTransactionAsync(alice, tx1);
-        const result1 = getGenericResult(events1);
-        expect(result1.success).to.be.true;
-
-        [balanceAcalaTokenInit] = await getBalance(api, [randomAccount.address]);
-        {
-          const {free} = (await api.query.tokens.accounts(randomAccount.addressRaw, {ForeignAsset: 0})).toJSON() as any;
-          balanceUniqueForeignTokenInit = BigInt(free);
-        }
-      },
-      acalaOptions(),
-    );
-
-    // Unique side
-    await usingApi(async (api) => {
-      const tx0 = api.tx.balances.transfer(randomAccount.address, 10n * TRANSFER_AMOUNT);
-      const events0 = await submitTransactionAsync(alice, tx0);
-      const result0 = getGenericResult(events0);
-      expect(result0.success).to.be.true;
-
-      [balanceUniqueTokenInit] = await getBalance(api, [randomAccount.address]);
-    });
-  });
-
-  it('Should connect and send UNQ to Acala', async () => {
-
-    // Unique side
-    await usingApi(async (api) => {
-
+    await usingAcalaPlaygrounds(acalaUrl, async (helper) => {
       const destination = {
         V0: {
           X2: [
             'Parent',
             {
-              Parachain: ACALA_CHAIN,
+              Parachain: UNIQUE_CHAIN,
             },
           ],
         },
       };
 
-      const beneficiary = {
-        V0: {
-          X1: {
-            AccountId32: {
-              network: 'Any',
-              id: randomAccount.addressRaw,
-            },
-          },
-        },
+      const metadata = {
+        name: 'UNQ',
+        symbol: 'UNQ',
+        decimals: 18,
+        minimalBalance: 1n,
       };
 
-      const assets = {
-        V1: [
+      await helper.getSudo().assetRegistry.registerForeignAsset(alice, destination, metadata);
+      await helper.balance.transferToSubstrate(alice, randomAccount.address, 10000000000000n);
+      balanceAcalaTokenInit = await helper.balance.getSubstrate(randomAccount.address);
+      balanceUniqueForeignTokenInit = await helper.tokens.accounts(randomAccount.address, {ForeignAsset: 0});
+    });
+
+    await usingPlaygrounds(async (helper) => {
+      await helper.balance.transferToSubstrate(alice, randomAccount.address, 10n * TRANSFER_AMOUNT);
+      balanceUniqueTokenInit = await helper.balance.getSubstrate(randomAccount.address);
+    });
+  });
+
+  itSub('Should connect and send UNQ to Acala', async ({helper}) => {
+
+    const destination = {
+      V0: {
+        X2: [
+          'Parent',
           {
-            id: {
-              Concrete: {
-                parents: 0,
-                interior: 'Here',
-              },
-            },
-            fun: {
-              Fungible: TRANSFER_AMOUNT,
-            },
+            Parachain: ACALA_CHAIN,
           },
         ],
-      };
+      },
+    };
 
-      const feeAssetItem = 0;
+    const beneficiary = {
+      V0: {
+        X1: {
+          AccountId32: {
+            network: 'Any',
+            id: randomAccount.addressRaw,
+          },
+        },
+      },
+    };
 
-      const weightLimit = {
-        Limited: 5000000000,
-      };
+    const assets = {
+      V1: [
+        {
+          id: {
+            Concrete: {
+              parents: 0,
+              interior: 'Here',
+            },
+          },
+          fun: {
+            Fungible: TRANSFER_AMOUNT,
+          },
+        },
+      ],
+    };
+
+    const feeAssetItem = 0;
+    const weightLimit = 5000000000;
 
-      const tx = api.tx.polkadotXcm.limitedReserveTransferAssets(destination, beneficiary, assets, feeAssetItem, weightLimit);
-      const events = await submitTransactionAsync(randomAccount, tx);
-      const result = getGenericResult(events);
-      expect(result.success).to.be.true;
+    await helper.xcm.limitedReserveTransferAssets(randomAccount, destination, beneficiary, assets, feeAssetItem, weightLimit);
 
-      [balanceUniqueTokenMiddle] = await getBalance(api, [randomAccount.address]);
+    balanceUniqueTokenMiddle = await helper.balance.getSubstrate(randomAccount.address);
 
-      const unqFees = balanceUniqueTokenInit - balanceUniqueTokenMiddle - TRANSFER_AMOUNT;
-      console.log('[Unique -> Acala] transaction fees on Unique: %s UNQ', bigIntToDecimals(unqFees));
-      expect(unqFees > 0n).to.be.true;
-    });
+    const unqFees = balanceUniqueTokenInit - balanceUniqueTokenMiddle - TRANSFER_AMOUNT;
+    console.log('[Unique -> Acala] transaction fees on Unique: %s UNQ', helper.util.bigIntToDecimals(unqFees));
+    expect(unqFees > 0n).to.be.true;
 
-    // Acala side
-    await usingApi(
-      async (api) => {
-        await waitNewBlocks(api, 3);
-        const {free} = (await api.query.tokens.accounts(randomAccount.addressRaw, {ForeignAsset: 0})).toJSON() as any;
-        balanceUniqueForeignTokenMiddle = BigInt(free);
+    await usingAcalaPlaygrounds(acalaUrl, async (helper) => {
+      await helper.wait.newBlocks(3);
 
-        [balanceAcalaTokenMiddle] = await getBalance(api, [randomAccount.address]);
+      balanceUniqueForeignTokenMiddle = await helper.tokens.accounts(randomAccount.address, {ForeignAsset: 0});
+      balanceAcalaTokenMiddle = await helper.balance.getSubstrate(randomAccount.address);
 
-        const acaFees = balanceAcalaTokenInit - balanceAcalaTokenMiddle;
-        const unqIncomeTransfer = balanceUniqueForeignTokenMiddle - balanceUniqueForeignTokenInit;
+      const acaFees = balanceAcalaTokenInit - balanceAcalaTokenMiddle;
+      const unqIncomeTransfer = balanceUniqueForeignTokenMiddle - balanceUniqueForeignTokenInit;
 
-        console.log(
-          '[Unique -> Acala] transaction fees on Acala: %s ACA',
-          bigIntToDecimals(acaFees, ACALA_DECIMALS),
-        );
-        console.log('[Unique -> Acala] income %s UNQ', bigIntToDecimals(unqIncomeTransfer));
-        expect(acaFees == 0n).to.be.true;
-        expect(unqIncomeTransfer == TRANSFER_AMOUNT).to.be.true;
-      },
-      acalaOptions(),
-    );
+      console.log(
+        '[Unique -> Acala] transaction fees on Acala: %s ACA',
+        helper.util.bigIntToDecimals(acaFees, ACALA_DECIMALS),
+      );
+      console.log('[Unique -> Acala] income %s UNQ', helper.util.bigIntToDecimals(unqIncomeTransfer));
+      expect(acaFees == 0n).to.be.true;
+      expect(unqIncomeTransfer == TRANSFER_AMOUNT).to.be.true;
+    });
   });
 
-  it('Should connect to Acala and send UNQ back', async () => {
-
-    // Acala side
-    await usingApi(
-      async (api) => {
-        const destination = {
-          V1: {
-            parents: 1,
-            interior: {
-              X2: [
-                {Parachain: UNIQUE_CHAIN},
-                {
-                  AccountId32: {
-                    network: 'Any',
-                    id: randomAccount.addressRaw,
-                  },
+  itSub('Should connect to Acala and send UNQ back', async ({helper}) => {
+    await usingAcalaPlaygrounds(acalaUrl, async (helper) => {
+      const destination = {
+        V1: {
+          parents: 1,
+          interior: {
+            X2: [
+              {Parachain: UNIQUE_CHAIN},
+              {
+                AccountId32: {
+                  network: 'Any',
+                  id: randomAccount.addressRaw,
                 },
-              ],
-            },
+              },
+            ],
           },
-        };
+        },
+      };
 
-        const id = {
-          ForeignAsset: 0,
-        };
+      const id = {
+        ForeignAsset: 0,
+      };
 
-        const destWeight = 50000000;
+      const destWeight = 50000000;
 
-        const tx = api.tx.xTokens.transfer(id as any, TRANSFER_AMOUNT, destination, destWeight);
-        const events = await submitTransactionAsync(randomAccount, tx);
-        const result = getGenericResult(events);
-        expect(result.success).to.be.true;
+      await helper.xTokens.transfer(randomAccount, id, TRANSFER_AMOUNT, destination, destWeight);
 
-        [balanceAcalaTokenFinal] = await getBalance(api, [randomAccount.address]);
-        {
-          const {free} = (await api.query.tokens.accounts(randomAccount.addressRaw, id)).toJSON() as any;
-          balanceUniqueForeignTokenFinal = BigInt(free);
-        }
+      balanceAcalaTokenFinal = await helper.balance.getSubstrate(randomAccount.address);
+      balanceUniqueForeignTokenFinal = await helper.tokens.accounts(randomAccount.address, id);
 
-        const acaFees = balanceAcalaTokenMiddle - balanceAcalaTokenFinal;
-        const unqOutcomeTransfer = balanceUniqueForeignTokenMiddle - balanceUniqueForeignTokenFinal;
+      const acaFees = balanceAcalaTokenMiddle - balanceAcalaTokenFinal;
+      const unqOutcomeTransfer = balanceUniqueForeignTokenMiddle - balanceUniqueForeignTokenFinal;
 
-        console.log(
-          '[Acala -> Unique] transaction fees on Acala: %s ACA',
-          bigIntToDecimals(acaFees, ACALA_DECIMALS),
-        );
-        console.log('[Acala -> Unique] outcome %s UNQ', bigIntToDecimals(unqOutcomeTransfer));
+      console.log(
+        '[Acala -> Unique] transaction fees on Acala: %s ACA',
+        helper.util.bigIntToDecimals(acaFees, ACALA_DECIMALS),
+      );
+      console.log('[Acala -> Unique] outcome %s UNQ', helper.util.bigIntToDecimals(unqOutcomeTransfer));
 
-        expect(acaFees > 0).to.be.true;
-        expect(unqOutcomeTransfer == TRANSFER_AMOUNT).to.be.true;
-      },
-      acalaOptions(),
-    );
+      expect(acaFees > 0).to.be.true;
+      expect(unqOutcomeTransfer == TRANSFER_AMOUNT).to.be.true;
+    });
 
-    // Unique side
-    await usingApi(async (api) => {
-      await waitNewBlocks(api, 3);
+    await helper.wait.newBlocks(3);
 
-      [balanceUniqueTokenFinal] = await getBalance(api, [randomAccount.address]);
-      const actuallyDelivered = balanceUniqueTokenFinal - balanceUniqueTokenMiddle;
-      expect(actuallyDelivered > 0).to.be.true;
+    balanceUniqueTokenFinal = await helper.balance.getSubstrate(randomAccount.address);
+    const actuallyDelivered = balanceUniqueTokenFinal - balanceUniqueTokenMiddle;
+    expect(actuallyDelivered > 0).to.be.true;
 
-      console.log('[Acala -> Unique] actually delivered %s UNQ', bigIntToDecimals(actuallyDelivered));
+    console.log('[Acala -> Unique] actually delivered %s UNQ', helper.util.bigIntToDecimals(actuallyDelivered));
 
-      const unqFees = TRANSFER_AMOUNT - actuallyDelivered;
-      console.log('[Acala -> Unique] transaction fees on Unique: %s UNQ', bigIntToDecimals(unqFees));
-      expect(unqFees == 0n).to.be.true;
-    });
+    const unqFees = TRANSFER_AMOUNT - actuallyDelivered;
+    console.log('[Acala -> Unique] transaction fees on Unique: %s UNQ', helper.util.bigIntToDecimals(unqFees));
+    expect(unqFees == 0n).to.be.true;
   });
 });
 
@@ -296,13 +215,13 @@
   let alice: IKeyringPair;
 
   before(async () => {
-    await usingApi(async (api, privateKeyWrapper) => {
-      alice = privateKeyWrapper('//Alice');
+    await usingPlaygrounds(async (_helper, privateKey) => {
+      alice = await privateKey('//Alice');
     });
   });
 
-  it('Unique rejects tokens from the Relay', async () => {
-    await usingApi(async (api) => {
+  itSub('Unique rejects tokens from the Relay', async ({helper}) => {
+    await usingRelayPlaygrounds(relayUrl, async (helper) => {
       const destination = {
         V1: {
           parents: 0,
@@ -341,49 +260,37 @@
       };
 
       const feeAssetItem = 0;
+      const weightLimit = 5_000_000_000;
 
-      const weightLimit = {
-        Limited: 5_000_000_000,
-      };
+      await helper.xcm.limitedReserveTransferAssets(alice, destination, beneficiary, assets, feeAssetItem, weightLimit);
+    });
 
-      const tx = api.tx.xcmPallet.limitedReserveTransferAssets(destination, beneficiary, assets, feeAssetItem, weightLimit);
-      const events = await submitTransactionAsync(alice, tx);
-      const result = getGenericResult(events);
-      expect(result.success).to.be.true;
-    }, relayOptions());
+    const maxWaitBlocks = 3;
 
-    await usingApi(async api => {
-      const maxWaitBlocks = 3;
-      const dmpQueueExecutedDownward = await waitEvent(
-        api,
-        maxWaitBlocks,
-        'dmpQueue',
-        'ExecutedDownward',
-      );
+    const dmpQueueExecutedDownward = await helper.wait.event(maxWaitBlocks, 'dmpQueue', 'ExecutedDownward');
 
-      expect(
-        dmpQueueExecutedDownward != null,
-        '[Relay] dmpQueue.ExecutedDownward event is expected',
-      ).to.be.true;
+    expect(
+      dmpQueueExecutedDownward != null,
+      '[Relay] dmpQueue.ExecutedDownward event is expected',
+    ).to.be.true;
 
-      const event = dmpQueueExecutedDownward!.event;
-      const outcome = event.data[1] as XcmV2TraitsOutcome;
+    const event = dmpQueueExecutedDownward!.event;
+    const outcome = event.data[1] as XcmV2TraitsOutcome;
 
-      expect(
-        outcome.isIncomplete,
-        '[Relay] The outcome of the XCM should be `Incomplete`',
-      ).to.be.true;
+    expect(
+      outcome.isIncomplete,
+      '[Relay] The outcome of the XCM should be `Incomplete`',
+    ).to.be.true;
 
-      const incomplete = outcome.asIncomplete;
-      expect(
-        incomplete[1].toString() == 'AssetNotFound',
-        '[Relay] The XCM error should be `AssetNotFound`',
-      ).to.be.true;
-    });
+    const incomplete = outcome.asIncomplete;
+    expect(
+      incomplete[1].toString() == 'AssetNotFound',
+      '[Relay] The XCM error should be `AssetNotFound`',
+    ).to.be.true;
   });
 
-  it('Unique rejects ACA tokens from Acala', async () => {
-    await usingApi(async (api) => {
+  itSub('Unique rejects ACA tokens from Acala', async ({helper}) => {
+    await usingAcalaPlaygrounds(acalaUrl, async (helper) => {
       const destination = {
         V1: {
           parents: 1,
@@ -407,36 +314,31 @@
 
       const destWeight = 50000000;
 
-      const tx = api.tx.xTokens.transfer(id as any, 100_000_000_000, destination, destWeight);
-      const events = await submitTransactionAsync(alice, tx);
-      const result = getGenericResult(events);
-      expect(result.success).to.be.true;
-    }, acalaOptions());
+      await helper.xTokens.transfer(alice, id, 100_000_000_000n, destination, destWeight);
+    });
 
-    await usingApi(async api => {
-      const maxWaitBlocks = 3;
-      const xcmpQueueFailEvent = await waitEvent(api, maxWaitBlocks, 'xcmpQueue', 'Fail');
+    const maxWaitBlocks = 3;
 
-      expect(
-        xcmpQueueFailEvent != null,
-        '[Acala] xcmpQueue.FailEvent event is expected',
-      ).to.be.true;
+    const xcmpQueueFailEvent = await helper.wait.event(maxWaitBlocks, 'xcmpQueue', 'Fail');
+
+    expect(
+      xcmpQueueFailEvent != null,
+      '[Acala] xcmpQueue.FailEvent event is expected',
+    ).to.be.true;
 
-      const event = xcmpQueueFailEvent!.event;
-      const outcome = event.data[1] as XcmV2TraitsError;
+    const event = xcmpQueueFailEvent!.event;
+    const outcome = event.data[1] as XcmV2TraitsError;
 
-      expect(
-        outcome.isUntrustedReserveLocation,
-        '[Acala] The XCM error should be `UntrustedReserveLocation`',
-      ).to.be.true;
-    });
+    expect(
+      outcome.isUntrustedReserveLocation,
+      '[Acala] The XCM error should be `UntrustedReserveLocation`',
+    ).to.be.true;
   });
 });
 
 describeXCM('[XCM] Integration test: Exchanging UNQ with Moonbeam', () => {
-
   // Unique constants
-  let uniqueAlice: IKeyringPair;
+  let uniqueDonor: IKeyringPair;
   let uniqueAssetLocation;
 
   let randomAccountUnique: IKeyringPair;
@@ -445,15 +347,6 @@
   // Moonbeam constants
   let assetId: string;
 
-  const moonbeamKeyring = new Keyring({type: 'ethereum'});
-  const alithPrivateKey = '0x5fb92d6e98884f76de468fa3f6278f8807c48bebc13595d45af5bdc4da702133';
-  const baltatharPrivateKey = '0x8075991ce870b93a8870eca0c0f91913d12f47948ca0fd25b49c6fa7cdbeee8b';
-  const dorothyPrivateKey = '0x39539ab1876910bbf3a223d84a29e28f1cb4e2e456503e7e91ed39b2e7223d68';
-
-  const alithAccount = moonbeamKeyring.addFromUri(alithPrivateKey, undefined, 'ethereum');
-  const baltatharAccount = moonbeamKeyring.addFromUri(baltatharPrivateKey, undefined, 'ethereum');
-  const dorothyAccount = moonbeamKeyring.addFromUri(dorothyPrivateKey, undefined, 'ethereum');
-
   const councilVotingThreshold = 2;
   const technicalCommitteeThreshold = 2;
   const votingPeriod = 3;
@@ -464,7 +357,7 @@
     symbol: 'xcUNQ',
     decimals: 18,
     isFrozen: false,
-    minimalBalance: 1,
+    minimalBalance: 1n,
   };
 
   let balanceUniqueTokenInit: bigint;
@@ -478,322 +371,230 @@
   let balanceGlmrTokenFinal: bigint;
 
   before(async () => {
-    await usingApi(async (api, privateKeyWrapper) => {
-      const keyringEth = new Keyring({type: 'ethereum'});
-      const keyringSr25519 = new Keyring({type: 'sr25519'});
+    await usingPlaygrounds(async (helper, privateKey) => {
+      uniqueDonor = await privateKey('//Alice');
+      [randomAccountUnique] = await helper.arrange.createAccounts([0n], uniqueDonor);
 
-      uniqueAlice = privateKeyWrapper('//Alice');
-      randomAccountUnique = generateKeyringPair(keyringSr25519);
-      randomAccountMoonbeam = generateKeyringPair(keyringEth);
-
       balanceForeignUnqTokenInit = 0n;
     });
 
-    await usingApi(
-      async (api) => {
+    await usingMoonbeamPlaygrounds(moonbeamUrl, async (helper) => {
+      const alithAccount = helper.account.alithAccount();
+      const baltatharAccount = helper.account.baltatharAccount();
+      const dorothyAccount = helper.account.dorothyAccount();
 
-        // >>> Sponsoring Dorothy >>>
-        console.log('Sponsoring Dorothy.......');
-        const tx0 = api.tx.balances.transfer(dorothyAccount.address, 11_000_000_000_000_000_000n);
-        const events0 = await submitTransactionAsync(alithAccount, tx0);
-        const result0 = getGenericResult(events0);
-        expect(result0.success).to.be.true;
-        console.log('Sponsoring Dorothy.......DONE');
-        // <<< Sponsoring Dorothy <<<
+      randomAccountMoonbeam = helper.account.create();
 
-        const sourceLocation: MultiLocation = api.createType(
-          'MultiLocation',
-          {
-            parents: 1,
-            interior: {X1: {Parachain: UNIQUE_CHAIN}},
-          },
-        );
+      // >>> Sponsoring Dorothy >>>
+      console.log('Sponsoring Dorothy.......');
+      await helper.balance.transferToEthereum(alithAccount, dorothyAccount.address, 11_000_000_000_000_000_000n);
+      console.log('Sponsoring Dorothy.......DONE');
+      // <<< Sponsoring Dorothy <<<
 
-        uniqueAssetLocation = {XCM: sourceLocation};
-        const existentialDeposit = 1;
-        const isSufficient = true;
-        const unitsPerSecond = '1';
-        const numAssetsWeightHint = 0;
+      uniqueAssetLocation = {
+        XCM: {
+          parents: 1,
+          interior: {X1: {Parachain: UNIQUE_CHAIN}},
+        },
+      };
+      const existentialDeposit = 1n;
+      const isSufficient = true;
+      const unitsPerSecond = 1n;
+      const numAssetsWeightHint = 0;
 
-        const registerTx = api.tx.assetManager.registerForeignAsset(
-          uniqueAssetLocation,
-          uniqueAssetMetadata,
-          existentialDeposit,
-          isSufficient,
-        );
-        console.log('Encoded proposal for registerAsset is %s', registerTx.method.toHex() || '');
-
-        const setUnitsTx = api.tx.assetManager.setAssetUnitsPerSecond(
-          uniqueAssetLocation,
-          unitsPerSecond,
-          numAssetsWeightHint,
-        );
-        console.log('Encoded proposal for setAssetUnitsPerSecond is %s', setUnitsTx.method.toHex() || '');
-
-        const batchCall = api.tx.utility.batchAll([registerTx, setUnitsTx]);
-        console.log('Encoded proposal for batchCall is %s', batchCall.method.toHex() || '');
-
-        // >>> Note motion preimage >>>
-        console.log('Note motion preimage.......');
-        const encodedProposal = batchCall?.method.toHex() || '';
-        const proposalHash = blake2AsHex(encodedProposal);
-        console.log('Encoded proposal for batch utility after schedule is %s', encodedProposal);
-        console.log('Encoded proposal hash for batch utility after schedule is %s', proposalHash);
-        console.log('Encoded length %d', encodedProposal.length);
+      const encodedProposal = helper.assetManager.makeRegisterForeignAssetProposal({
+        location: uniqueAssetLocation,
+        metadata: uniqueAssetMetadata,
+        existentialDeposit,
+        isSufficient,
+        unitsPerSecond,
+        numAssetsWeightHint,
+      });
+      const proposalHash = blake2AsHex(encodedProposal);
 
-        const tx1 = api.tx.democracy.notePreimage(encodedProposal);
-        const events1 = await submitTransactionAsync(baltatharAccount, tx1);
-        const result1 = getGenericResult(events1);
-        expect(result1.success).to.be.true;
-        console.log('Note motion preimage.......DONE');
-        // <<< Note motion preimage <<<
+      console.log('Encoded proposal for registerForeignAsset & setAssetUnitsPerSecond is %s', encodedProposal);
+      console.log('Encoded length %d', encodedProposal.length);
+      console.log('Encoded proposal hash for batch utility after schedule is %s', proposalHash);
 
-        // >>> Propose external motion through council >>>
-        console.log('Propose external motion through council.......');
-        const externalMotion = api.tx.democracy.externalProposeMajority(proposalHash);
-        const tx2 = api.tx.councilCollective.propose(
-          councilVotingThreshold,
-          externalMotion,
-          externalMotion.encodedLength,
-        );
-        const events2 = await submitTransactionAsync(baltatharAccount, tx2);
-        const result2 = getGenericResult(events2);
-        expect(result2.success).to.be.true;
+      // >>> Note motion preimage >>>
+      console.log('Note motion preimage.......');
+      await helper.democracy.notePreimage(baltatharAccount, encodedProposal);
+      console.log('Note motion preimage.......DONE');
+      // <<< Note motion preimage <<<
 
-        const encodedMotion = externalMotion?.method.toHex() || '';
-        const motionHash = blake2AsHex(encodedMotion);
-        console.log('Motion hash is %s', motionHash);
+      // >>> Propose external motion through council >>>
+      console.log('Propose external motion through council.......');
+      const externalMotion = helper.democracy.externalProposeMajority(proposalHash);
+      const encodedMotion = externalMotion?.method.toHex() || '';
+      const motionHash = blake2AsHex(encodedMotion);
+      console.log('Motion hash is %s', motionHash);
 
-        const tx3 = api.tx.councilCollective.vote(motionHash, 0, true);
-        {
-          const events3 = await submitTransactionAsync(dorothyAccount, tx3);
-          const result3 = getGenericResult(events3);
-          expect(result3.success).to.be.true;
-        }
-        {
-          const events3 = await submitTransactionAsync(baltatharAccount, tx3);
-          const result3 = getGenericResult(events3);
-          expect(result3.success).to.be.true;
-        }
+      await helper.collective.council.propose(baltatharAccount, councilVotingThreshold, externalMotion, externalMotion.encodedLength);
 
-        const tx4 = api.tx.councilCollective.close(motionHash, 0, 1_000_000_000, externalMotion.encodedLength);
-        const events4 = await submitTransactionAsync(dorothyAccount, tx4);
-        const result4 = getGenericResult(events4);
-        expect(result4.success).to.be.true;
-        console.log('Propose external motion through council.......DONE');
-        // <<< Propose external motion through council <<<
+      const councilProposalIdx = await helper.collective.council.proposalCount() - 1;
+      await helper.collective.council.vote(dorothyAccount, motionHash, councilProposalIdx, true);
+      await helper.collective.council.vote(baltatharAccount, motionHash, councilProposalIdx, true);
 
-        // >>> Fast track proposal through technical committee >>>
-        console.log('Fast track proposal through technical committee.......');
-        const fastTrack = api.tx.democracy.fastTrack(proposalHash, votingPeriod, delayPeriod);
-        const tx5 = api.tx.techCommitteeCollective.propose(
-          technicalCommitteeThreshold,
-          fastTrack,
-          fastTrack.encodedLength,
-        );
-        const events5 = await submitTransactionAsync(alithAccount, tx5);
-        const result5 = getGenericResult(events5);
-        expect(result5.success).to.be.true;
+      await helper.collective.council.close(dorothyAccount, motionHash, councilProposalIdx, 1_000_000_000, externalMotion.encodedLength);
+      console.log('Propose external motion through council.......DONE');
+      // <<< Propose external motion through council <<<
 
-        const encodedFastTrack = fastTrack?.method.toHex() || '';
-        const fastTrackHash = blake2AsHex(encodedFastTrack);
-        console.log('FastTrack hash is %s', fastTrackHash);
+      // >>> Fast track proposal through technical committee >>>
+      console.log('Fast track proposal through technical committee.......');
+      const fastTrack = helper.democracy.fastTrack(proposalHash, votingPeriod, delayPeriod);
+      const encodedFastTrack = fastTrack?.method.toHex() || '';
+      const fastTrackHash = blake2AsHex(encodedFastTrack);
+      console.log('FastTrack hash is %s', fastTrackHash);
 
-        const proposalIdx = Number(await api.query.techCommitteeCollective.proposalCount()) - 1;
-        const tx6 = api.tx.techCommitteeCollective.vote(fastTrackHash, proposalIdx, true);
-        {
-          const events6 = await submitTransactionAsync(baltatharAccount, tx6);
-          const result6 = getGenericResult(events6);
-          expect(result6.success).to.be.true;
-        }
-        {
-          const events6 = await submitTransactionAsync(alithAccount, tx6);
-          const result6 = getGenericResult(events6);
-          expect(result6.success).to.be.true;
-        }
+      await helper.collective.techCommittee.propose(alithAccount, technicalCommitteeThreshold, fastTrack, fastTrack.encodedLength);
 
-        const tx7 = api.tx.techCommitteeCollective
-          .close(fastTrackHash, proposalIdx, 1_000_000_000, fastTrack.encodedLength);
-        const events7 = await submitTransactionAsync(baltatharAccount, tx7);
-        const result7 = getGenericResult(events7);
-        expect(result7.success).to.be.true;
-        console.log('Fast track proposal through technical committee.......DONE');
-        // <<< Fast track proposal through technical committee <<<
+      const techProposalIdx = await helper.collective.techCommittee.proposalCount() - 1;
+      await helper.collective.techCommittee.vote(baltatharAccount, fastTrackHash, techProposalIdx, true);
+      await helper.collective.techCommittee.vote(alithAccount, fastTrackHash, techProposalIdx, true);
 
-        // >>> Referendum voting >>>
-        console.log('Referendum voting.......');
-        const tx8 = api.tx.democracy.vote(
-          0,
-          {Standard: {balance: 10_000_000_000_000_000_000n, vote: {aye: true, conviction: 1}}},
-        );
-        const events8 = await submitTransactionAsync(dorothyAccount, tx8);
-        const result8 = getGenericResult(events8);
-        expect(result8.success).to.be.true;
-        console.log('Referendum voting.......DONE');
-        // <<< Referendum voting <<<
+      await helper.collective.techCommittee.close(baltatharAccount, fastTrackHash, techProposalIdx, 1_000_000_000, fastTrack.encodedLength);
+      console.log('Fast track proposal through technical committee.......DONE');
+      // <<< Fast track proposal through technical committee <<<
 
-        // >>> Acquire Unique AssetId Info on Moonbeam >>>
-        console.log('Acquire Unique AssetId Info on Moonbeam.......');
+      // >>> Referendum voting >>>
+      console.log('Referendum voting.......');
+      await helper.democracy.referendumVote(dorothyAccount, 0, {
+        balance: 10_000_000_000_000_000_000n,
+        vote: {aye: true, conviction: 1},
+      });
+      console.log('Referendum voting.......DONE');
+      // <<< Referendum voting <<<
 
-        // Wait for the democracy execute
-        await waitNewBlocks(api, 5);
+      // >>> Acquire Unique AssetId Info on Moonbeam >>>
+      console.log('Acquire Unique AssetId Info on Moonbeam.......');
 
-        assetId = (await api.query.assetManager.assetTypeId({
-          XCM: sourceLocation,
-        })).toString();
+      // Wait for the democracy execute
+      await helper.wait.newBlocks(5);
 
-        console.log('UNQ asset ID is %s', assetId);
-        console.log('Acquire Unique AssetId Info on Moonbeam.......DONE');
-        // >>> Acquire Unique AssetId Info on Moonbeam >>>
+      assetId = (await helper.assetManager.assetTypeId(uniqueAssetLocation)).toString();
 
-        // >>> Sponsoring random Account >>>
-        console.log('Sponsoring random Account.......');
-        const tx10 = api.tx.balances.transfer(randomAccountMoonbeam.address, 11_000_000_000_000_000_000n);
-        const events10 = await submitTransactionAsync(baltatharAccount, tx10);
-        const result10 = getGenericResult(events10);
-        expect(result10.success).to.be.true;
-        console.log('Sponsoring random Account.......DONE');
-        // <<< Sponsoring random Account <<<
+      console.log('UNQ asset ID is %s', assetId);
+      console.log('Acquire Unique AssetId Info on Moonbeam.......DONE');
+      // >>> Acquire Unique AssetId Info on Moonbeam >>>
 
-        [balanceGlmrTokenInit] = await getBalance(api, [randomAccountMoonbeam.address]);
-      },
-      moonbeamOptions(),
-    );
+      // >>> Sponsoring random Account >>>
+      console.log('Sponsoring random Account.......');
+      await helper.balance.transferToEthereum(baltatharAccount, randomAccountMoonbeam.address, 11_000_000_000_000_000_000n);
+      console.log('Sponsoring random Account.......DONE');
+      // <<< Sponsoring random Account <<<
 
-    await usingApi(async (api) => {
-      const tx0 = api.tx.balances.transfer(randomAccountUnique.address, 10n * TRANSFER_AMOUNT);
-      const events0 = await submitTransactionAsync(uniqueAlice, tx0);
-      const result0 = getGenericResult(events0);
-      expect(result0.success).to.be.true;
+      balanceGlmrTokenInit = await helper.balance.getEthereum(randomAccountMoonbeam.address);
+    });
 
-      [balanceUniqueTokenInit] = await getBalance(api, [randomAccountUnique.address]);
+    await usingPlaygrounds(async (helper) => {
+      await helper.balance.transferToSubstrate(uniqueDonor, randomAccountUnique.address, 10n * TRANSFER_AMOUNT);
+      balanceUniqueTokenInit = await helper.balance.getSubstrate(randomAccountUnique.address);
     });
   });
 
-  it('Should connect and send UNQ to Moonbeam', async () => {
-    await usingApi(async (api) => {
-      const currencyId = {
-        NativeAssetId: 'Here',
-      };
-      const dest = {
-        V1: {
-          parents: 1,
-          interior: {
-            X2: [
-              {Parachain: MOONBEAM_CHAIN},
-              {AccountKey20: {network: 'Any', key: randomAccountMoonbeam.address}},
-            ],
-          },
+  itSub('Should connect and send UNQ to Moonbeam', async ({helper}) => {
+    const currencyId = {
+      NativeAssetId: 'Here',
+    };
+    const dest = {
+      V1: {
+        parents: 1,
+        interior: {
+          X2: [
+            {Parachain: MOONBEAM_CHAIN},
+            {AccountKey20: {network: 'Any', key: randomAccountMoonbeam.address}},
+          ],
         },
-      };
-      const amount = TRANSFER_AMOUNT;
-      const destWeight = 850000000;
+      },
+    };
+    const amount = TRANSFER_AMOUNT;
+    const destWeight = 850000000;
 
-      const tx = api.tx.xTokens.transfer(currencyId, amount, dest, destWeight);
-      const events = await submitTransactionAsync(randomAccountUnique, tx);
-      const result = getGenericResult(events);
-      expect(result.success).to.be.true;
+    await helper.xTokens.transfer(randomAccountUnique, currencyId, amount, dest, destWeight);
 
-      [balanceUniqueTokenMiddle] = await getBalance(api, [randomAccountUnique.address]);
-      expect(balanceUniqueTokenMiddle < balanceUniqueTokenInit).to.be.true;
+    balanceUniqueTokenMiddle = await helper.balance.getSubstrate(randomAccountUnique.address);
+    expect(balanceUniqueTokenMiddle < balanceUniqueTokenInit).to.be.true;
 
-      const transactionFees = balanceUniqueTokenInit - balanceUniqueTokenMiddle - TRANSFER_AMOUNT;
-      console.log('[Unique -> Moonbeam] transaction fees on Unique: %s UNQ', bigIntToDecimals(transactionFees));
-      expect(transactionFees > 0).to.be.true;
-    });
+    const transactionFees = balanceUniqueTokenInit - balanceUniqueTokenMiddle - TRANSFER_AMOUNT;
+    console.log('[Unique -> Moonbeam] transaction fees on Unique: %s UNQ', helper.util.bigIntToDecimals(transactionFees));
+    expect(transactionFees > 0).to.be.true;
 
-    await usingApi(
-      async (api) => {
-        await waitNewBlocks(api, 3);
+    await usingMoonbeamPlaygrounds(moonbeamUrl, async (helper) => {
+      await helper.wait.newBlocks(3);
 
-        [balanceGlmrTokenMiddle] = await getBalance(api, [randomAccountMoonbeam.address]);
+      balanceGlmrTokenMiddle = await helper.balance.getEthereum(randomAccountMoonbeam.address);
 
-        const glmrFees = balanceGlmrTokenInit - balanceGlmrTokenMiddle;
-        console.log('[Unique -> Moonbeam] transaction fees on Moonbeam: %s GLMR', bigIntToDecimals(glmrFees));
-        expect(glmrFees == 0n).to.be.true;
+      const glmrFees = balanceGlmrTokenInit - balanceGlmrTokenMiddle;
+      console.log('[Unique -> Moonbeam] transaction fees on Moonbeam: %s GLMR', helper.util.bigIntToDecimals(glmrFees));
+      expect(glmrFees == 0n).to.be.true;
 
-        const unqRandomAccountAsset = (
-          await api.query.assets.account(assetId, randomAccountMoonbeam.address)
-        ).toJSON()! as any;
+      balanceForeignUnqTokenMiddle = (await helper.assets.account(assetId, randomAccountMoonbeam.address))!;
 
-        balanceForeignUnqTokenMiddle = BigInt(unqRandomAccountAsset['balance']);
-        const unqIncomeTransfer = balanceForeignUnqTokenMiddle - balanceForeignUnqTokenInit;
-        console.log('[Unique -> Moonbeam] income %s UNQ', bigIntToDecimals(unqIncomeTransfer));
-        expect(unqIncomeTransfer == TRANSFER_AMOUNT).to.be.true;
-      },
-      moonbeamOptions(),
-    );
+      const unqIncomeTransfer = balanceForeignUnqTokenMiddle - balanceForeignUnqTokenInit;
+      console.log('[Unique -> Moonbeam] income %s UNQ', helper.util.bigIntToDecimals(unqIncomeTransfer));
+      expect(unqIncomeTransfer == TRANSFER_AMOUNT).to.be.true;
+    });
   });
 
-  it('Should connect to Moonbeam and send UNQ back', async () => {
-    await usingApi(
-      async (api) => {
-        const asset = {
-          V1: {
-            id: {
-              Concrete: {
-                parents: 1,
-                interior: {
-                  X1: {Parachain: UNIQUE_CHAIN},
-                },
+  itSub('Should connect to Moonbeam and send UNQ back', async ({helper}) => {
+    await usingMoonbeamPlaygrounds(moonbeamUrl, async (helper) => {
+      const asset = {
+        V1: {
+          id: {
+            Concrete: {
+              parents: 1,
+              interior: {
+                X1: {Parachain: UNIQUE_CHAIN},
               },
             },
-            fun: {
-              Fungible: TRANSFER_AMOUNT,
-            },
           },
-        };
-        const destination = {
-          V1: {
-            parents: 1,
-            interior: {
-              X2: [
-                {Parachain: UNIQUE_CHAIN},
-                {AccountId32: {network: 'Any', id: randomAccountUnique.addressRaw}},
-              ],
-            },
+          fun: {
+            Fungible: TRANSFER_AMOUNT,
           },
-        };
-        const destWeight = 50000000;
-
-        const tx = api.tx.xTokens.transferMultiasset(asset, destination, destWeight);
-        const events = await submitTransactionAsync(randomAccountMoonbeam, tx);
-        const result = getGenericResult(events);
-        expect(result.success).to.be.true;
+        },
+      };
+      const destination = {
+        V1: {
+          parents: 1,
+          interior: {
+            X2: [
+              {Parachain: UNIQUE_CHAIN},
+              {AccountId32: {network: 'Any', id: randomAccountUnique.addressRaw}},
+            ],
+          },
+        },
+      };
+      const destWeight = 50000000;
 
-        [balanceGlmrTokenFinal] = await getBalance(api, [randomAccountMoonbeam.address]);
+      await helper.xTokens.transferMultiasset(randomAccountMoonbeam, asset, destination, destWeight);
 
-        const glmrFees = balanceGlmrTokenMiddle - balanceGlmrTokenFinal;
-        console.log('[Moonbeam -> Unique] transaction fees on Moonbeam: %s GLMR', bigIntToDecimals(glmrFees));
-        expect(glmrFees > 0).to.be.true;
+      balanceGlmrTokenFinal = await helper.balance.getEthereum(randomAccountMoonbeam.address);
 
-        const unqRandomAccountAsset = (
-          await api.query.assets.account(assetId, randomAccountMoonbeam.address)
-        ).toJSON()! as any;
+      const glmrFees = balanceGlmrTokenMiddle - balanceGlmrTokenFinal;
+      console.log('[Moonbeam -> Unique] transaction fees on Moonbeam: %s GLMR', helper.util.bigIntToDecimals(glmrFees));
+      expect(glmrFees > 0).to.be.true;
 
-        expect(unqRandomAccountAsset).to.be.null;
+      const unqRandomAccountAsset = await helper.assets.account(assetId, randomAccountMoonbeam.address);
 
-        balanceForeignUnqTokenFinal = 0n;
+      expect(unqRandomAccountAsset).to.be.null;
+      
+      balanceForeignUnqTokenFinal = 0n;
 
-        const unqOutcomeTransfer = balanceForeignUnqTokenMiddle - balanceForeignUnqTokenFinal;
-        console.log('[Unique -> Moonbeam] outcome %s UNQ', bigIntToDecimals(unqOutcomeTransfer));
-        expect(unqOutcomeTransfer == TRANSFER_AMOUNT).to.be.true;
-      },
-      moonbeamOptions(),
-    );
+      const unqOutcomeTransfer = balanceForeignUnqTokenMiddle - balanceForeignUnqTokenFinal;
+      console.log('[Unique -> Moonbeam] outcome %s UNQ', helper.util.bigIntToDecimals(unqOutcomeTransfer));
+      expect(unqOutcomeTransfer == TRANSFER_AMOUNT).to.be.true;
+    });
 
-    await usingApi(async (api) => {
-      await waitNewBlocks(api, 3);
+    await helper.wait.newBlocks(3);
 
-      [balanceUniqueTokenFinal] = await getBalance(api, [randomAccountUnique.address]);
-      const actuallyDelivered = balanceUniqueTokenFinal - balanceUniqueTokenMiddle;
-      expect(actuallyDelivered > 0).to.be.true;
+    balanceUniqueTokenFinal = await helper.balance.getSubstrate(randomAccountUnique.address);
+    const actuallyDelivered = balanceUniqueTokenFinal - balanceUniqueTokenMiddle;
+    expect(actuallyDelivered > 0).to.be.true;
 
-      console.log('[Moonbeam -> Unique] actually delivered %s UNQ', bigIntToDecimals(actuallyDelivered));
+    console.log('[Moonbeam -> Unique] actually delivered %s UNQ', helper.util.bigIntToDecimals(actuallyDelivered));
 
-      const unqFees = TRANSFER_AMOUNT - actuallyDelivered;
-      console.log('[Moonbeam -> Unique] transaction fees on Unique: %s UNQ', bigIntToDecimals(unqFees));
-      expect(unqFees == 0n).to.be.true;
-    });
+    const unqFees = TRANSFER_AMOUNT - actuallyDelivered;
+    console.log('[Moonbeam -> Unique] transaction fees on Unique: %s UNQ', helper.util.bigIntToDecimals(unqFees));
+    expect(unqFees == 0n).to.be.true;
   });
 });