git.delta.rocks / unique-network / refs/commits / a5bd6fad4f0f

difftreelog

tests(rmrk+outdated): refactor old helpers and rmrk to get rid of warnings

Fahrrader2022-10-07parent: #85e8bc9.patch.diff
in: master

43 files changed

modifiedtests/src/deprecated-helpers/helpers.tsdiffbeforeafterboth
--- a/tests/src/deprecated-helpers/helpers.ts
+++ b/tests/src/deprecated-helpers/helpers.ts
@@ -463,7 +463,7 @@
 }
 
 export async function createCollectionExpectSuccess(params: Partial<CreateCollectionParams> = {}): Promise<number> {
-  const {name, description, mode, tokenPrefix} = {...defaultCreateCollectionParams, ...params};
+  const {name, description, tokenPrefix} = {...defaultCreateCollectionParams, ...params};
 
   let collectionId = 0;
   await usingApi(async (api, privateKeyWrapper) => {
@@ -763,7 +763,7 @@
 }
 
 export async function confirmSponsorshipByKeyExpectSuccess(collectionId: number, sender: IKeyringPair) {
-  await usingApi(async (api, privateKeyWrapper) => {
+  await usingApi(async (api) => {
 
     // Run the transaction
     const tx = api.tx.unique.confirmSponsorship(collectionId);
@@ -1764,11 +1764,11 @@
   return (await api.rpc.unique.collectionById(collectionId)).unwrap();
 }
 
-export const describe_xcm = (
+/*export const describe_xcm = (
   process.env.RUN_XCM_TESTS
     ? describe
     : describe.skip
-);
+);*/
 
 export async function waitNewBlocks(blocksCount = 1): Promise<void> {
   await usingApi(async (api) => {
addedtests/src/rmrk/acceptNft.seqtest.tsdiffbeforeafterboth
--- /dev/null
+++ b/tests/src/rmrk/acceptNft.seqtest.ts
@@ -0,0 +1,108 @@
+import {expect} from 'chai';
+import {getApiConnection} from '../substrate/substrate-api';
+import {
+  createCollection,
+  mintNft,
+  sendNft,
+  acceptNft,
+} from './util/tx';
+import {NftIdTuple} from './util/fetch';
+import {isNftChildOfAnother, expectTxFailure} from './util/helpers';
+import {requirePallets, Pallets} from '../deprecated-helpers/helpers';
+
+describe('integration test: accept NFT', () => {
+  let api: any;
+  before(async function() {
+    api = await getApiConnection();
+    await requirePallets(this, [Pallets.RmrkCore]);
+  });
+  
+  
+  const alice = '//Alice';
+  const bob = '//Bob';
+  
+  const createTestCollection = async (issuerUri: string) => {
+    return await createCollection(
+      api,
+      issuerUri,
+      'accept-metadata',
+      null,
+      'acpt',
+    );
+  };
+
+  it('accept NFT', async () => {
+    const ownerAlice = alice;
+    const ownerBob = bob;
+
+    const aliceCollectionId = await createTestCollection(alice);
+    const bobCollectionId = await createTestCollection(bob);
+
+    const parentNftId = await mintNft(api, alice, ownerAlice, aliceCollectionId, 'parent-nft-metadata');
+    const childNftId = await mintNft(api, bob, ownerBob, bobCollectionId, 'child-nft-metadata');
+
+    const newOwnerNFT: NftIdTuple = [aliceCollectionId, parentNftId];
+
+    await sendNft(api, 'pending', ownerBob, bobCollectionId, childNftId, newOwnerNFT);
+    await acceptNft(api, alice, bobCollectionId, childNftId, newOwnerNFT);
+
+    const isChild = await isNftChildOfAnother(api, bobCollectionId, childNftId, newOwnerNFT);
+    expect(isChild).to.be.true;
+  });
+
+  it('[negative] unable to accept NFT by a not-an-owner', async () => {
+    const ownerAlice = alice;
+    const ownerBob = bob;
+
+    const aliceCollectionId = await createTestCollection(alice);
+    const bobCollectionId = await createTestCollection(bob);
+
+    const parentNftId = await mintNft(api, alice, ownerAlice, aliceCollectionId, 'parent-nft-metadata');
+    const childNftId = await mintNft(api, bob, ownerBob, bobCollectionId, 'child-nft-metadata');
+
+    const newOwnerNFT: NftIdTuple = [aliceCollectionId, parentNftId];
+
+    await sendNft(api, 'pending', ownerBob, bobCollectionId, childNftId, newOwnerNFT);
+    const tx = acceptNft(api, bob, bobCollectionId, childNftId, newOwnerNFT);
+
+    await expectTxFailure(/rmrkCore\.NoPermission/, tx);
+  });
+
+  it('[negative] unable to accept non-existing NFT', async () => {
+    const collectionId = 0;
+    const maxNftId = 0xFFFFFFFF;
+
+    const owner = alice;
+    const aliceCollectionId = await createTestCollection(alice);
+
+    const parentNftId = await mintNft(api, alice, owner, aliceCollectionId, 'parent-nft-metadata');
+
+    const newOwnerNFT: NftIdTuple = [aliceCollectionId, parentNftId];
+
+    const tx = acceptNft(api, alice, collectionId, maxNftId, newOwnerNFT);
+
+    await expectTxFailure(/rmrkCore\.NoAvailableNftId/, tx);
+  });
+
+  it('[negative] unable to accept NFT which is not sent', async () => {
+    const ownerAlice = alice;
+    const ownerBob = bob;
+
+    const aliceCollectionId = await createTestCollection(alice);
+    const bobCollectionId = await createTestCollection(bob);
+
+    const parentNftId = await mintNft(api, alice, ownerAlice, aliceCollectionId, 'parent-nft-metadata');
+    const childNftId = await mintNft(api, bob, ownerBob, bobCollectionId, 'child-nft-metadata');
+
+    const newOwnerNFT: NftIdTuple = [aliceCollectionId, parentNftId];
+
+    const tx = acceptNft(api, alice, bobCollectionId, childNftId, newOwnerNFT);
+
+    await expectTxFailure(/rmrkCore\.NoPermission/, tx);
+
+    const isChild = await isNftChildOfAnother(api, bobCollectionId, childNftId, newOwnerNFT);
+    expect(isChild).to.be.false;
+  });
+
+  after(() => { api.disconnect(); });
+});
deletedtests/src/rmrk/acceptNft.test.tsdiffbeforeafterboth
--- a/tests/src/rmrk/acceptNft.test.ts
+++ /dev/null
@@ -1,108 +0,0 @@
-import {expect} from 'chai';
-import {getApiConnection} from '../substrate/substrate-api';
-import {
-  createCollection,
-  mintNft,
-  sendNft,
-  acceptNft,
-} from './util/tx';
-import {NftIdTuple} from './util/fetch';
-import {isNftChildOfAnother, expectTxFailure} from './util/helpers';
-import {requirePallets, Pallets} from '../deprecated-helpers/helpers';
-
-describe('integration test: accept NFT', () => {
-  let api: any;
-  before(async function() {
-    api = await getApiConnection();
-    await requirePallets(this, [Pallets.RmrkCore]);
-  });
-  
-  
-  const alice = '//Alice';
-  const bob = '//Bob';
-  
-  const createTestCollection = async (issuerUri: string) => {
-    return await createCollection(
-      api,
-      issuerUri,
-      'accept-metadata',
-      null,
-      'acpt',
-    );
-  };
-
-  it('accept NFT', async () => {
-    const ownerAlice = alice;
-    const ownerBob = bob;
-
-    const aliceCollectionId = await createTestCollection(alice);
-    const bobCollectionId = await createTestCollection(bob);
-
-    const parentNftId = await mintNft(api, alice, ownerAlice, aliceCollectionId, 'parent-nft-metadata');
-    const childNftId = await mintNft(api, bob, ownerBob, bobCollectionId, 'child-nft-metadata');
-
-    const newOwnerNFT: NftIdTuple = [aliceCollectionId, parentNftId];
-
-    await sendNft(api, 'pending', ownerBob, bobCollectionId, childNftId, newOwnerNFT);
-    await acceptNft(api, alice, bobCollectionId, childNftId, newOwnerNFT);
-
-    const isChild = await isNftChildOfAnother(api, bobCollectionId, childNftId, newOwnerNFT);
-    expect(isChild).to.be.true;
-  });
-
-  it('[negative] unable to accept NFT by a not-an-owner', async () => {
-    const ownerAlice = alice;
-    const ownerBob = bob;
-
-    const aliceCollectionId = await createTestCollection(alice);
-    const bobCollectionId = await createTestCollection(bob);
-
-    const parentNftId = await mintNft(api, alice, ownerAlice, aliceCollectionId, 'parent-nft-metadata');
-    const childNftId = await mintNft(api, bob, ownerBob, bobCollectionId, 'child-nft-metadata');
-
-    const newOwnerNFT: NftIdTuple = [aliceCollectionId, parentNftId];
-
-    await sendNft(api, 'pending', ownerBob, bobCollectionId, childNftId, newOwnerNFT);
-    const tx = acceptNft(api, bob, bobCollectionId, childNftId, newOwnerNFT);
-
-    await expectTxFailure(/rmrkCore\.NoPermission/, tx);
-  });
-
-  it('[negative] unable to accept non-existing NFT', async () => {
-    const collectionId = 0;
-    const maxNftId = 0xFFFFFFFF;
-
-    const owner = alice;
-    const aliceCollectionId = await createTestCollection(alice);
-
-    const parentNftId = await mintNft(api, alice, owner, aliceCollectionId, 'parent-nft-metadata');
-
-    const newOwnerNFT: NftIdTuple = [aliceCollectionId, parentNftId];
-
-    const tx = acceptNft(api, alice, collectionId, maxNftId, newOwnerNFT);
-
-    await expectTxFailure(/rmrkCore\.NoAvailableNftId/, tx);
-  });
-
-  it('[negative] unable to accept NFT which is not sent', async () => {
-    const ownerAlice = alice;
-    const ownerBob = bob;
-
-    const aliceCollectionId = await createTestCollection(alice);
-    const bobCollectionId = await createTestCollection(bob);
-
-    const parentNftId = await mintNft(api, alice, ownerAlice, aliceCollectionId, 'parent-nft-metadata');
-    const childNftId = await mintNft(api, bob, ownerBob, bobCollectionId, 'child-nft-metadata');
-
-    const newOwnerNFT: NftIdTuple = [aliceCollectionId, parentNftId];
-
-    const tx = acceptNft(api, alice, bobCollectionId, childNftId, newOwnerNFT);
-
-    await expectTxFailure(/rmrkCore\.NoPermission/, tx);
-
-    const isChild = await isNftChildOfAnother(api, bobCollectionId, childNftId, newOwnerNFT);
-    expect(isChild).to.be.false;
-  });
-
-  after(() => { api.disconnect(); });
-});
addedtests/src/rmrk/addResource.seqtest.tsdiffbeforeafterboth
--- /dev/null
+++ b/tests/src/rmrk/addResource.seqtest.ts
@@ -0,0 +1,438 @@
+import {expect} from 'chai';
+import {getApiConnection} from '../substrate/substrate-api';
+import {NftIdTuple} from './util/fetch';
+import {expectTxFailure, getResourceById} from './util/helpers';
+import {
+  addNftBasicResource,
+  acceptNftResource,
+  createCollection,
+  mintNft,
+  sendNft,
+  addNftSlotResource,
+  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';
+  const bob = '//Bob';
+  const src = 'test-res-src';
+  const metadata = 'test-res-metadata';
+  const license = 'test-res-license';
+  const thumb = 'test-res-thumb';
+
+  const nonexistentId = 99999;
+
+  let api: any;
+  before(async function() {
+    api = await getApiConnection();
+    await requirePallets(this, [Pallets.RmrkCore]);
+  });
+
+  it('add resource', async () => {
+    const collectionIdAlice = await createCollection(
+      api,
+      alice,
+      'test-metadata',
+      null,
+      'test-symbol',
+    );
+
+    const nftAlice = await mintNft(
+      api,
+      alice,
+      alice,
+      collectionIdAlice,
+      'nft-metadata',
+    );
+
+    await addNftBasicResource(
+      api,
+      alice,
+      'added',
+      collectionIdAlice,
+      nftAlice,
+      src,
+      metadata,
+      license,
+      thumb,
+    );
+  });
+
+  it('add a resource to the nested NFT', async () => {
+    const collectionIdAlice = await createCollection(
+      api,
+      alice,
+      'test-metadata',
+      null,
+      'test-symbol',
+    );
+
+    const parentNftId = await mintNft(api, alice, alice, collectionIdAlice, 'parent-nft-metadata');
+    const childNftId = await mintNft(api, alice, alice, collectionIdAlice, 'child-nft-metadata');
+
+    const newOwnerNFT: NftIdTuple = [collectionIdAlice, parentNftId];
+
+    await sendNft(api, 'sent', alice, collectionIdAlice, childNftId, newOwnerNFT);
+
+    await addNftBasicResource(
+      api,
+      alice,
+      'added',
+      collectionIdAlice,
+      childNftId,
+      src,
+      metadata,
+      license,
+      thumb,
+    );
+  });
+
+  it('add multiple resources', async () => {
+    const collectionIdAlice = await createCollection(
+      api,
+      alice,
+      'test-metadata',
+      null,
+      'test-symbol',
+    );
+
+    const nftAlice = await mintNft(
+      api,
+      alice,
+      alice,
+      collectionIdAlice,
+      'nft-metadata',
+    );
+
+    const baseId = 42;
+    const slotId = 10;
+    const parts = [0, 5, 2];
+
+    const resourcesInfo = [];
+    const resourceNum = 4;
+
+    const checkResource = async (resource: ResourceInfo, resType: string, expectedId: number, expected: {
+      src: string,
+      metadata: string,
+      license: string,
+      thumb: string
+    }) => {
+
+      // FIXME A workaround. It seems it is a PolkadotJS bug.
+      // All of the following are `false`.
+      //
+      // console.log('>>> basic:', resource.resource.isBasic);
+      // console.log('>>> composable:', resource.resource.isComposable);
+      // console.log('>>> slot:', resource.resource.isSlot);
+      const resourceJson = (resource.resource.toHuman() as any)[resType];
+
+      expect(resource.id.toNumber(), 'Error: Invalid resource Id')
+        .to.be.eq(expectedId);
+
+      expect(resourceJson.src, 'Error: Invalid resource src')
+        .to.be.eq(expected.src);
+      expect(resourceJson.metadata, 'Error: Invalid resource metadata')
+        .to.be.eq(expected.metadata);
+      expect(resourceJson.license, 'Error: Invalid resource license')
+        .to.be.eq(expected.license);
+      expect(resourceJson.thumb, 'Error: Invalid resource thumb')
+        .to.be.eq(expected.thumb);
+    };
+
+    for (let i = 0; i < resourceNum; i++) {
+      resourcesInfo.push({
+        src: src + 'r-' + i,
+        metadata: metadata + 'r-' + i,
+        license: license + 'r-' + i,
+        thumb: thumb + 'r-' + i,
+      });
+    }
+
+    const firstBasicResourceId = await addNftBasicResource(
+      api,
+      alice,
+      'added',
+      collectionIdAlice,
+      nftAlice,
+      resourcesInfo[0].src,
+      resourcesInfo[0].metadata,
+      resourcesInfo[0].license,
+      resourcesInfo[0].thumb,
+    );
+
+    const secondBasicResourceId = await addNftBasicResource(
+      api,
+      alice,
+      'added',
+      collectionIdAlice,
+      nftAlice,
+      resourcesInfo[1].src,
+      resourcesInfo[1].metadata,
+      resourcesInfo[1].license,
+      resourcesInfo[1].thumb,
+    );
+
+    const composableResourceId = await addNftComposableResource(
+      api,
+      alice,
+      'added',
+      collectionIdAlice,
+      nftAlice,
+      parts,
+      baseId,
+      resourcesInfo[2].src,
+      resourcesInfo[2].metadata,
+      resourcesInfo[2].license,
+      resourcesInfo[2].thumb,
+    );
+
+    const slotResourceId = await addNftSlotResource(
+      api,
+      alice,
+      'added',
+      collectionIdAlice,
+      nftAlice,
+      baseId,
+      slotId,
+      resourcesInfo[3].src,
+      resourcesInfo[3].metadata,
+      resourcesInfo[3].license,
+      resourcesInfo[3].thumb,
+    );
+
+    const firstResource = await getResourceById(api, collectionIdAlice, nftAlice, firstBasicResourceId);
+    await checkResource(firstResource, 'Basic', firstBasicResourceId, resourcesInfo[0]);
+
+    const secondResource = await getResourceById(api, collectionIdAlice, nftAlice, secondBasicResourceId);
+    await checkResource(secondResource, 'Basic', secondBasicResourceId, resourcesInfo[1]);
+
+    const composableResource = await getResourceById(api, collectionIdAlice, nftAlice, composableResourceId);
+    await checkResource(composableResource, 'Composable', composableResourceId, resourcesInfo[2]);
+
+    const slotResource = await getResourceById(api, collectionIdAlice, nftAlice, slotResourceId);
+    await checkResource(slotResource, 'Slot', slotResourceId, resourcesInfo[3]);
+  });
+
+  it('[negative]: unable to add a resource to the non-existing NFT', async () => {
+    const collectionIdAlice = await createCollection(
+      api,
+      alice,
+      'test-metadata',
+      null,
+      'test-symbol',
+    );
+
+    const tx = addNftBasicResource(
+      api,
+      alice,
+      'added',
+      collectionIdAlice,
+      nonexistentId,
+      src,
+      metadata,
+      license,
+      thumb,
+    );
+  
+    await expectTxFailure(/rmrkCore\.NoAvailableNftId/, tx);
+  });
+
+  it('[negative]: unable to add a resource by a not-an-owner user', async () => {
+    const collectionIdAlice = await createCollection(
+      api,
+      alice,
+      'test-metadata',
+      null,
+      'test-symbol',
+    );
+
+    const nftAlice = await mintNft(
+      api,
+      alice,
+      alice,
+      collectionIdAlice,
+      'nft-metadata',
+    );
+
+    const tx = addNftBasicResource(
+      api,
+      bob,
+      'added',
+      collectionIdAlice,
+      nftAlice,
+      src,
+      metadata,
+      license,
+      thumb,
+    );
+  
+    await expectTxFailure(/rmrkCore\.NoPermission/, tx);
+  });
+
+  it('[negative]: unable to add a resource to the nested NFT if it isnt root owned by the caller', async () => {
+    const collectionIdAlice = await createCollection(
+      api,
+      alice,
+      'test-metadata',
+      null,
+      'test-symbol',
+    );
+
+    const parentNftId = await mintNft(api, alice, alice, collectionIdAlice, 'parent-nft-metadata');
+    const childNftId = await mintNft(api, alice, alice, collectionIdAlice, 'child-nft-metadata');
+
+    const newOwnerNFT: NftIdTuple = [collectionIdAlice, parentNftId];
+
+    await sendNft(api, 'sent', alice, collectionIdAlice, childNftId, newOwnerNFT);
+
+    const tx = addNftBasicResource(
+      api,
+      bob,
+      'added',
+      collectionIdAlice,
+      childNftId,
+      src,
+      metadata,
+      license,
+      thumb,
+    );
+    
+    await expectTxFailure(/rmrkCore\.NoPermission/, tx);
+  });
+
+  it('accept resource', async () => {
+    const collectionIdBob = await createCollection(
+      api,
+      bob,
+      'test-metadata',
+      null,
+      'test-symbol',
+    );
+
+    const nftAlice = await mintNft(
+      api,
+      bob,
+      alice,
+      collectionIdBob,
+      'nft-metadata',
+    );
+
+    const resourceId = await addNftBasicResource(
+      api,
+      bob,
+      'pending',
+      collectionIdBob,
+      nftAlice,
+      src,
+      metadata,
+      license,
+      thumb,
+    );
+
+    await acceptNftResource(api, alice, collectionIdBob, nftAlice, resourceId);
+  });
+
+  it('[negative]: unable to accept a non-existing resource', async () => {
+    const collectionIdBob = await createCollection(
+      api,
+      bob,
+      'test-metadata',
+      null,
+      'test-symbol',
+    );
+
+    const nftAlice = await mintNft(
+      api,
+      bob,
+      alice,
+      collectionIdBob,
+      'nft-metadata',
+    );
+
+    const tx = acceptNftResource(api, alice, collectionIdBob, nftAlice, nonexistentId);
+    await expectTxFailure(/rmrkCore\.ResourceDoesntExist/, tx);
+  });
+
+  it('[negative]: unable to accept a resource by a not-an-NFT-owner user', async () => {
+    const collectionIdBob = await createCollection(
+      api,
+      bob,
+      'test-metadata',
+      null,
+      'test-symbol',
+    );
+
+    const nftAlice = await mintNft(
+      api,
+      bob,
+      alice,
+      collectionIdBob,
+      'nft-metadata',
+    );
+
+    const resourceId = await addNftBasicResource(
+      api,
+      bob,
+      'pending',
+      collectionIdBob,
+      nftAlice,
+      src,
+      metadata,
+      license,
+      thumb,
+    );
+
+    const tx = acceptNftResource(api, bob, collectionIdBob, nftAlice, resourceId);
+
+    await expectTxFailure(/rmrkCore\.NoPermission/, tx);
+  });
+
+  it('[negative]: unable to accept a resource to a non-target NFT', async () => {
+    const collectionIdBob = await createCollection(
+      api,
+      bob,
+      'test-metadata',
+      null,
+      'test-symbol',
+    );
+
+    const nftAlice = await mintNft(
+      api,
+      bob,
+      alice,
+      collectionIdBob,
+      'nft-metadata',
+    );
+
+    const wrongNft = await mintNft(
+      api,
+      bob,
+      alice,
+      collectionIdBob,
+      'nft-metadata',
+    );
+    
+    const resourceId = await addNftBasicResource(
+      api,
+      bob,
+      'pending',
+      collectionIdBob,
+      nftAlice,
+      src,
+      metadata,
+      license,
+      thumb,
+    );
+
+    const tx = acceptNftResource(api, bob, collectionIdBob, wrongNft, resourceId);
+
+    await expectTxFailure(/rmrkCore\.ResourceDoesntExist/, tx);
+  });
+
+
+  after(() => {
+    api.disconnect();
+  });
+});
deletedtests/src/rmrk/addResource.test.tsdiffbeforeafterboth
--- a/tests/src/rmrk/addResource.test.ts
+++ /dev/null
@@ -1,438 +0,0 @@
-import {expect} from 'chai';
-import {getApiConnection} from '../substrate/substrate-api';
-import {NftIdTuple} from './util/fetch';
-import {expectTxFailure, getResourceById} from './util/helpers';
-import {
-  addNftBasicResource,
-  acceptNftResource,
-  createCollection,
-  mintNft,
-  sendNft,
-  addNftSlotResource,
-  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';
-  const Bob = '//Bob';
-  const src = 'test-res-src';
-  const metadata = 'test-res-metadata';
-  const license = 'test-res-license';
-  const thumb = 'test-res-thumb';
-
-  const nonexistentId = 99999;
-
-  let api: any;
-  before(async function() {
-    api = await getApiConnection();
-    await requirePallets(this, [Pallets.RmrkCore]);
-  });
-
-  it('add resource', async () => {
-    const collectionIdAlice = await createCollection(
-      api,
-      Alice,
-      'test-metadata',
-      null,
-      'test-symbol',
-    );
-
-    const nftAlice = await mintNft(
-      api,
-      Alice,
-      Alice,
-      collectionIdAlice,
-      'nft-metadata',
-    );
-
-    await addNftBasicResource(
-      api,
-      Alice,
-      'added',
-      collectionIdAlice,
-      nftAlice,
-      src,
-      metadata,
-      license,
-      thumb,
-    );
-  });
-
-  it('add a resource to the nested NFT', async () => {
-    const collectionIdAlice = await createCollection(
-      api,
-      Alice,
-      'test-metadata',
-      null,
-      'test-symbol',
-    );
-
-    const parentNftId = await mintNft(api, Alice, Alice, collectionIdAlice, 'parent-nft-metadata');
-    const childNftId = await mintNft(api, Alice, Alice, collectionIdAlice, 'child-nft-metadata');
-
-    const newOwnerNFT: NftIdTuple = [collectionIdAlice, parentNftId];
-
-    await sendNft(api, 'sent', Alice, collectionIdAlice, childNftId, newOwnerNFT);
-
-    await addNftBasicResource(
-      api,
-      Alice,
-      'added',
-      collectionIdAlice,
-      childNftId,
-      src,
-      metadata,
-      license,
-      thumb,
-    );
-  });
-
-  it('add multiple resources', async () => {
-    const collectionIdAlice = await createCollection(
-      api,
-      Alice,
-      'test-metadata',
-      null,
-      'test-symbol',
-    );
-
-    const nftAlice = await mintNft(
-      api,
-      Alice,
-      Alice,
-      collectionIdAlice,
-      'nft-metadata',
-    );
-
-    const baseId = 42;
-    const slotId = 10;
-    const parts = [0, 5, 2];
-
-    const resourcesInfo = [];
-    const resourceNum = 4;
-
-    const checkResource = async (resource: ResourceInfo, resType: string, expectedId: number, expected: {
-      src: string,
-      metadata: string,
-      license: string,
-      thumb: string
-    }) => {
-
-      // FIXME A workaround. It seems it is a PolkadotJS bug.
-      // All of the following are `false`.
-      //
-      // console.log('>>> basic:', resource.resource.isBasic);
-      // console.log('>>> composable:', resource.resource.isComposable);
-      // console.log('>>> slot:', resource.resource.isSlot);
-      const resourceJson = (resource.resource.toHuman() as any)[resType];
-
-      expect(resource.id.toNumber(), 'Error: Invalid resource Id')
-        .to.be.eq(expectedId);
-
-      expect(resourceJson.src, 'Error: Invalid resource src')
-        .to.be.eq(expected.src);
-      expect(resourceJson.metadata, 'Error: Invalid resource metadata')
-        .to.be.eq(expected.metadata);
-      expect(resourceJson.license, 'Error: Invalid resource license')
-        .to.be.eq(expected.license);
-      expect(resourceJson.thumb, 'Error: Invalid resource thumb')
-        .to.be.eq(expected.thumb);
-    };
-
-    for (let i = 0; i < resourceNum; i++) {
-      resourcesInfo.push({
-        src: src + 'r-' + i,
-        metadata: metadata + 'r-' + i,
-        license: license + 'r-' + i,
-        thumb: thumb + 'r-' + i,
-      });
-    }
-
-    const firstBasicResourceId = await addNftBasicResource(
-      api,
-      Alice,
-      'added',
-      collectionIdAlice,
-      nftAlice,
-      resourcesInfo[0].src,
-      resourcesInfo[0].metadata,
-      resourcesInfo[0].license,
-      resourcesInfo[0].thumb,
-    );
-
-    const secondBasicResourceId = await addNftBasicResource(
-      api,
-      Alice,
-      'added',
-      collectionIdAlice,
-      nftAlice,
-      resourcesInfo[1].src,
-      resourcesInfo[1].metadata,
-      resourcesInfo[1].license,
-      resourcesInfo[1].thumb,
-    );
-
-    const composableResourceId = await addNftComposableResource(
-      api,
-      Alice,
-      'added',
-      collectionIdAlice,
-      nftAlice,
-      parts,
-      baseId,
-      resourcesInfo[2].src,
-      resourcesInfo[2].metadata,
-      resourcesInfo[2].license,
-      resourcesInfo[2].thumb,
-    );
-
-    const slotResourceId = await addNftSlotResource(
-      api,
-      Alice,
-      'added',
-      collectionIdAlice,
-      nftAlice,
-      baseId,
-      slotId,
-      resourcesInfo[3].src,
-      resourcesInfo[3].metadata,
-      resourcesInfo[3].license,
-      resourcesInfo[3].thumb,
-    );
-
-    const firstResource = await getResourceById(api, collectionIdAlice, nftAlice, firstBasicResourceId);
-    await checkResource(firstResource, 'Basic', firstBasicResourceId, resourcesInfo[0]);
-
-    const secondResource = await getResourceById(api, collectionIdAlice, nftAlice, secondBasicResourceId);
-    await checkResource(secondResource, 'Basic', secondBasicResourceId, resourcesInfo[1]);
-
-    const composableResource = await getResourceById(api, collectionIdAlice, nftAlice, composableResourceId);
-    await checkResource(composableResource, 'Composable', composableResourceId, resourcesInfo[2]);
-
-    const slotResource = await getResourceById(api, collectionIdAlice, nftAlice, slotResourceId);
-    await checkResource(slotResource, 'Slot', slotResourceId, resourcesInfo[3]);
-  });
-
-  it('[negative]: unable to add a resource to the non-existing NFT', async () => {
-    const collectionIdAlice = await createCollection(
-      api,
-      Alice,
-      'test-metadata',
-      null,
-      'test-symbol',
-    );
-
-    const tx = addNftBasicResource(
-      api,
-      Alice,
-      'added',
-      collectionIdAlice,
-      nonexistentId,
-      src,
-      metadata,
-      license,
-      thumb,
-    );
-  
-    await expectTxFailure(/rmrkCore\.NoAvailableNftId/, tx);
-  });
-
-  it('[negative]: unable to add a resource by a not-an-owner user', async () => {
-    const collectionIdAlice = await createCollection(
-      api,
-      Alice,
-      'test-metadata',
-      null,
-      'test-symbol',
-    );
-
-    const nftAlice = await mintNft(
-      api,
-      Alice,
-      Alice,
-      collectionIdAlice,
-      'nft-metadata',
-    );
-
-    const tx = addNftBasicResource(
-      api,
-      Bob,
-      'added',
-      collectionIdAlice,
-      nftAlice,
-      src,
-      metadata,
-      license,
-      thumb,
-    );
-  
-    await expectTxFailure(/rmrkCore\.NoPermission/, tx);
-  });
-
-  it('[negative]: unable to add a resource to the nested NFT if it isnt root owned by the caller', async () => {
-    const collectionIdAlice = await createCollection(
-      api,
-      Alice,
-      'test-metadata',
-      null,
-      'test-symbol',
-    );
-
-    const parentNftId = await mintNft(api, Alice, Alice, collectionIdAlice, 'parent-nft-metadata');
-    const childNftId = await mintNft(api, Alice, Alice, collectionIdAlice, 'child-nft-metadata');
-
-    const newOwnerNFT: NftIdTuple = [collectionIdAlice, parentNftId];
-
-    await sendNft(api, 'sent', Alice, collectionIdAlice, childNftId, newOwnerNFT);
-
-    const tx = addNftBasicResource(
-      api,
-      Bob,
-      'added',
-      collectionIdAlice,
-      childNftId,
-      src,
-      metadata,
-      license,
-      thumb,
-    );
-    
-    await expectTxFailure(/rmrkCore\.NoPermission/, tx);
-  });
-
-  it('accept resource', async () => {
-    const collectionIdBob = await createCollection(
-      api,
-      Bob,
-      'test-metadata',
-      null,
-      'test-symbol',
-    );
-
-    const nftAlice = await mintNft(
-      api,
-      Bob,
-      Alice,
-      collectionIdBob,
-      'nft-metadata',
-    );
-
-    const resourceId = await addNftBasicResource(
-      api,
-      Bob,
-      'pending',
-      collectionIdBob,
-      nftAlice,
-      src,
-      metadata,
-      license,
-      thumb,
-    );
-
-    await acceptNftResource(api, Alice, collectionIdBob, nftAlice, resourceId);
-  });
-
-  it('[negative]: unable to accept a non-existing resource', async () => {
-    const collectionIdBob = await createCollection(
-      api,
-      Bob,
-      'test-metadata',
-      null,
-      'test-symbol',
-    );
-
-    const nftAlice = await mintNft(
-      api,
-      Bob,
-      Alice,
-      collectionIdBob,
-      'nft-metadata',
-    );
-
-    const tx = acceptNftResource(api, Alice, collectionIdBob, nftAlice, nonexistentId);
-    await expectTxFailure(/rmrkCore\.ResourceDoesntExist/, tx);
-  });
-
-  it('[negative]: unable to accept a resource by a not-an-NFT-owner user', async () => {
-    const collectionIdBob = await createCollection(
-      api,
-      Bob,
-      'test-metadata',
-      null,
-      'test-symbol',
-    );
-
-    const nftAlice = await mintNft(
-      api,
-      Bob,
-      Alice,
-      collectionIdBob,
-      'nft-metadata',
-    );
-
-    const resourceId = await addNftBasicResource(
-      api,
-      Bob,
-      'pending',
-      collectionIdBob,
-      nftAlice,
-      src,
-      metadata,
-      license,
-      thumb,
-    );
-
-    const tx = acceptNftResource(api, Bob, collectionIdBob, nftAlice, resourceId);
-
-    await expectTxFailure(/rmrkCore\.NoPermission/, tx);
-  });
-
-  it('[negative]: unable to accept a resource to a non-target NFT', async () => {
-    const collectionIdBob = await createCollection(
-      api,
-      Bob,
-      'test-metadata',
-      null,
-      'test-symbol',
-    );
-
-    const nftAlice = await mintNft(
-      api,
-      Bob,
-      Alice,
-      collectionIdBob,
-      'nft-metadata',
-    );
-
-    const wrongNft = await mintNft(
-      api,
-      Bob,
-      Alice,
-      collectionIdBob,
-      'nft-metadata',
-    );
-    
-    const resourceId = await addNftBasicResource(
-      api,
-      Bob,
-      'pending',
-      collectionIdBob,
-      nftAlice,
-      src,
-      metadata,
-      license,
-      thumb,
-    );
-
-    const tx = acceptNftResource(api, Bob, collectionIdBob, wrongNft, resourceId);
-
-    await expectTxFailure(/rmrkCore\.ResourceDoesntExist/, tx);
-  });
-
-
-  after(() => {
-    api.disconnect();
-  });
-});
addedtests/src/rmrk/addTheme.seqtest.tsdiffbeforeafterboth
--- /dev/null
+++ b/tests/src/rmrk/addTheme.seqtest.ts
@@ -0,0 +1,130 @@
+import {expect} from 'chai';
+import {getApiConnection} from '../substrate/substrate-api';
+import {createBase, addTheme} from './util/tx';
+import {expectTxFailure} 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;
+  before(async function() {
+    api = await getApiConnection();
+    await requirePallets(this, [Pallets.RmrkEquip]);
+  });
+
+  const alice = '//Alice';
+  const bob = '//Bob';
+
+  it('add default theme', async () => {
+    const baseId = await createBase(api, alice, 'default-themed-base', 'DTBase', []);
+    await addTheme(api, alice, baseId, {
+      name: 'default',
+      properties: [
+        {
+          key: 'some-key',
+          value: 'some-key-value',
+        },
+        {
+          key: 'another-key',
+          value: 'another-key-value',
+        },
+      ],
+    });
+  });
+
+  it('add default theme and a custom one', async () => {
+    const baseId = await createBase(api, alice, '2-themed-base', '2TBase', []);
+    await addTheme(api, alice, baseId, {
+      name: 'default',
+      properties: [
+        {
+          key: 'default-key',
+          value: 'default-key-value',
+        },
+      ],
+    });
+    await addTheme(api, alice, baseId, {
+      name: 'custom-theme',
+      properties: [
+        {
+          key: 'custom-key-0',
+          value: 'custom-key-value-0',
+        },
+        {
+          key: 'custom-key-1',
+          value: 'custom-key-value-1',
+        },
+      ],
+    });
+  });
+
+  it('fetch filtered theme keys', async () => {
+    const baseId = await createBase(api, alice, '2-themed-base', '2TBase', []);
+    await addTheme(api, alice, baseId, {
+      name: 'default',
+      properties: [
+        {
+          key: 'first-key',
+          value: 'first-key-value',
+        },
+        {
+          key: 'second-key',
+          value: 'second-key-value',
+        },
+      ],
+    }, ['second-key']);
+  });
+
+  it('fetch theme names', async() => {
+    const baseId = await createBase(api, alice, '3-themed-base', '3TBase', []);
+    const names = [
+      'default',
+      'first-theme',
+      'second-theme',
+    ];
+
+    for (let i = 0; i < names.length; i++) {
+      await addTheme(api, alice, baseId, {name: names[i], properties: [{key: 'dummy', value: 'dummy'}]});
+    }
+
+    const fetchedNames = await getThemeNames(api, baseId);
+
+    for (let i = 0; i < names.length; i++) {
+      const isFound = fetchedNames.find((name) => name === names[i]) !== undefined;
+
+      expect(isFound, 'Error: invalid theme names').to.be.true;
+    }
+  });
+
+  it('[negative] unable to add theme to non-existing base', async () => {
+    const maxBaseId = 0xFFFFFFFF;
+    const tx = addTheme(api, alice, maxBaseId, {
+      name: 'default',
+      properties: [],
+    });
+
+    await expectTxFailure(/rmrkEquip\.BaseDoesntExist/, tx);
+  });
+
+  it('[negative] unable to add custom theme if no default theme', async () => {
+    const baseId = await createBase(api, alice, 'no-default-themed-base', 'NDTBase', []);
+    const tx = addTheme(api, alice, baseId, {
+      name: 'custom-theme',
+      properties: [],
+    });
+
+    await expectTxFailure(/rmrkEquip\.NeedsDefaultThemeFirst/, tx);
+  });
+
+  it('[negative] unable to add theme by a not-an-owner', async () => {
+    const baseId = await createBase(api, alice, 'no-default-themed-base', 'NDTBase', []);
+    const tx = addTheme(api, bob, baseId, {
+      name: 'default',
+      properties: [],
+    });
+
+    await expectTxFailure(/rmrkEquip\.PermissionError/, tx);
+  });
+
+  after(() => { api.disconnect(); });
+});
deletedtests/src/rmrk/addTheme.test.tsdiffbeforeafterboth
--- a/tests/src/rmrk/addTheme.test.ts
+++ /dev/null
@@ -1,130 +0,0 @@
-import {expect} from 'chai';
-import {getApiConnection} from '../substrate/substrate-api';
-import {createBase, addTheme} from './util/tx';
-import {expectTxFailure} 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;
-  before(async function() {
-    api = await getApiConnection();
-    await requirePallets(this, [Pallets.RmrkEquip]);
-  });
-
-  const alice = '//Alice';
-  const bob = '//Bob';
-
-  it('add default theme', async () => {
-    const baseId = await createBase(api, alice, 'default-themed-base', 'DTBase', []);
-    await addTheme(api, alice, baseId, {
-      name: 'default',
-      properties: [
-        {
-          key: 'some-key',
-          value: 'some-key-value',
-        },
-        {
-          key: 'another-key',
-          value: 'another-key-value',
-        },
-      ],
-    });
-  });
-
-  it('add default theme and a custom one', async () => {
-    const baseId = await createBase(api, alice, '2-themed-base', '2TBase', []);
-    await addTheme(api, alice, baseId, {
-      name: 'default',
-      properties: [
-        {
-          key: 'default-key',
-          value: 'default-key-value',
-        },
-      ],
-    });
-    await addTheme(api, alice, baseId, {
-      name: 'custom-theme',
-      properties: [
-        {
-          key: 'custom-key-0',
-          value: 'custom-key-value-0',
-        },
-        {
-          key: 'custom-key-1',
-          value: 'custom-key-value-1',
-        },
-      ],
-    });
-  });
-
-  it('fetch filtered theme keys', async () => {
-    const baseId = await createBase(api, alice, '2-themed-base', '2TBase', []);
-    await addTheme(api, alice, baseId, {
-      name: 'default',
-      properties: [
-        {
-          key: 'first-key',
-          value: 'first-key-value',
-        },
-        {
-          key: 'second-key',
-          value: 'second-key-value',
-        },
-      ],
-    }, ['second-key']);
-  });
-
-  it('fetch theme names', async() => {
-    const baseId = await createBase(api, alice, '3-themed-base', '3TBase', []);
-    const names = [
-      'default',
-      'first-theme',
-      'second-theme',
-    ];
-
-    for (let i = 0; i < names.length; i++) {
-      await addTheme(api, alice, baseId, {name: names[i], properties: [{key: 'dummy', value: 'dummy'}]});
-    }
-
-    const fetchedNames = await getThemeNames(api, baseId);
-
-    for (let i = 0; i < names.length; i++) {
-      const isFound = fetchedNames.find((name) => name === names[i]) !== undefined;
-
-      expect(isFound, 'Error: invalid theme names').to.be.true;
-    }
-  });
-
-  it('[negative] unable to add theme to non-existing base', async () => {
-    const maxBaseId = 0xFFFFFFFF;
-    const tx = addTheme(api, alice, maxBaseId, {
-      name: 'default',
-      properties: [],
-    });
-
-    await expectTxFailure(/rmrkEquip\.BaseDoesntExist/, tx);
-  });
-
-  it('[negative] unable to add custom theme if no default theme', async () => {
-    const baseId = await createBase(api, alice, 'no-default-themed-base', 'NDTBase', []);
-    const tx = addTheme(api, alice, baseId, {
-      name: 'custom-theme',
-      properties: [],
-    });
-
-    await expectTxFailure(/rmrkEquip\.NeedsDefaultThemeFirst/, tx);
-  });
-
-  it('[negative] unable to add theme by a not-an-owner', async () => {
-    const baseId = await createBase(api, alice, 'no-default-themed-base', 'NDTBase', []);
-    const tx = addTheme(api, bob, baseId, {
-      name: 'default',
-      properties: [],
-    });
-
-    await expectTxFailure(/rmrkEquip\.PermissionError/, tx);
-  });
-
-  after(() => { api.disconnect(); });
-});
addedtests/src/rmrk/burnNft.seqtest.tsdiffbeforeafterboth
--- /dev/null
+++ b/tests/src/rmrk/burnNft.seqtest.ts
@@ -0,0 +1,173 @@
+import {getApiConnection} from '../substrate/substrate-api';
+import {expectTxFailure} 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;
+
+describe('integration test: burn nft', () => {
+  const alice = '//Alice';
+  const bob = '//Bob';
+
+  let api: any;
+  before(async function() {
+    api = await getApiConnection();
+    await requirePallets(this, [Pallets.RmrkCore]);
+  });
+
+
+  it('burn nft', async () => {
+    await createCollection(
+      api,
+      alice,
+      'test-metadata',
+      null,
+      'test-symbol',
+    ).then(async (collectionId) => {
+      const nftId = await mintNft(
+        api,
+        alice,
+        alice,
+        collectionId,
+        'nft-metadata',
+      );
+      await burnNft(api, alice, collectionId, nftId);
+    });
+  });
+
+  it('burn nft with children', async () => {
+    const collectionId = await createCollection(
+      api,
+      alice,
+      'test-metadata',
+      null,
+      'test-symbol',
+    );
+
+    const parentNftId = await mintNft(
+      api,
+      alice,
+      alice,
+      collectionId,
+      'nft-metadata',
+    );
+
+    const childNftId = await mintNft(
+      api,
+      alice,
+      alice,
+      collectionId,
+      'nft-metadata',
+    );
+
+    const newOwnerNFT: NftIdTuple = [collectionId, parentNftId];
+
+    await sendNft(api, 'sent', alice, collectionId, childNftId, newOwnerNFT);
+
+    const childrenBefore = await getChildren(api, collectionId, parentNftId);
+    expect(childrenBefore.length === 1, 'Error: parent NFT should have children')
+      .to.be.true;
+
+    const child = childrenBefore[0];
+    expect(child.collectionId.eq(collectionId), 'Error: invalid child collection Id')
+      .to.be.true;
+
+    expect(child.nftId.eq(childNftId), 'Error: invalid child NFT Id')
+      .to.be.true;
+
+    await burnNft(api, alice, collectionId, parentNftId);
+
+    const childrenAfter = await getChildren(api, collectionId, parentNftId);
+
+    expect(childrenAfter.length === 0, 'Error: children should be burned').to.be.true;
+  });
+
+  it('burn child nft', async () => {
+    const collectionId = await createCollection(
+      api,
+      alice,
+      'test-metadata',
+      null,
+      'test-symbol',
+    );
+
+    const parentNftId = await mintNft(
+      api,
+      alice,
+      alice,
+      collectionId,
+      'nft-metadata',
+    );
+
+    const childNftId = await mintNft(
+      api,
+      alice,
+      alice,
+      collectionId,
+      'nft-metadata',
+    );
+
+    const newOwnerNFT: NftIdTuple = [collectionId, parentNftId];
+
+    await sendNft(api, 'sent', alice, collectionId, childNftId, newOwnerNFT);
+
+    const childrenBefore = await getChildren(api, collectionId, parentNftId);
+    expect(childrenBefore.length === 1, 'Error: parent NFT should have children')
+      .to.be.true;
+
+    const child = childrenBefore[0];
+    expect(child.collectionId.eq(collectionId), 'Error: invalid child collection Id')
+      .to.be.true;
+
+    expect(child.nftId.eq(childNftId), 'Error: invalid child NFT Id')
+      .to.be.true;
+
+    await burnNft(api, alice, collectionId, childNftId);
+
+    const childrenAfter = await getChildren(api, collectionId, parentNftId);
+
+    expect(childrenAfter.length === 0, 'Error: children should be burned').to.be.true;
+  });
+
+  it('[negative] burn non-existing NFT', async () => {
+    await createCollection(
+      api,
+      alice,
+      'test-metadata',
+      null,
+      'test-symbol',
+    ).then(async (collectionId) => {
+      const tx = burnNft(api, alice, collectionId, 99999);
+      await expectTxFailure(/rmrkCore\.NoAvailableNftId/, tx);
+    });
+  });
+
+  it('[negative] burn not an owner NFT user', async () => {
+    await createCollection(
+      api,
+      alice,
+      'test-metadata',
+      null,
+      'test-symbol',
+    ).then(async (collectionId) => {
+      const nftId = await mintNft(
+        api,
+        alice,
+        alice,
+        collectionId,
+        'nft-metadata',
+      );
+      const tx = burnNft(api, bob, collectionId, nftId);
+      await expectTxFailure(/rmrkCore\.NoPermission/, tx);
+    });
+  });
+
+  after(() => {
+    api.disconnect();
+  });
+});
deletedtests/src/rmrk/burnNft.test.tsdiffbeforeafterboth
--- a/tests/src/rmrk/burnNft.test.ts
+++ /dev/null
@@ -1,173 +0,0 @@
-import {getApiConnection} from '../substrate/substrate-api';
-import {expectTxFailure} 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;
-
-describe('integration test: burn nft', () => {
-  const Alice = '//Alice';
-  const Bob = '//Bob';
-
-  let api: any;
-  before(async function() {
-    api = await getApiConnection();
-    await requirePallets(this, [Pallets.RmrkCore]);
-  });
-
-
-  it('burn nft', async () => {
-    await createCollection(
-      api,
-      Alice,
-      'test-metadata',
-      null,
-      'test-symbol',
-    ).then(async (collectionId) => {
-      const nftId = await mintNft(
-        api,
-        Alice,
-        Alice,
-        collectionId,
-        'nft-metadata',
-      );
-      await burnNft(api, Alice, collectionId, nftId);
-    });
-  });
-
-  it('burn nft with children', async () => {
-    const collectionId = await createCollection(
-      api,
-      Alice,
-      'test-metadata',
-      null,
-      'test-symbol',
-    );
-
-    const parentNftId = await mintNft(
-      api,
-      Alice,
-      Alice,
-      collectionId,
-      'nft-metadata',
-    );
-
-    const childNftId = await mintNft(
-      api,
-      Alice,
-      Alice,
-      collectionId,
-      'nft-metadata',
-    );
-
-    const newOwnerNFT: NftIdTuple = [collectionId, parentNftId];
-
-    await sendNft(api, 'sent', Alice, collectionId, childNftId, newOwnerNFT);
-
-    const childrenBefore = await getChildren(api, collectionId, parentNftId);
-    expect(childrenBefore.length === 1, 'Error: parent NFT should have children')
-      .to.be.true;
-
-    const child = childrenBefore[0];
-    expect(child.collectionId.eq(collectionId), 'Error: invalid child collection Id')
-      .to.be.true;
-
-    expect(child.nftId.eq(childNftId), 'Error: invalid child NFT Id')
-      .to.be.true;
-
-    await burnNft(api, Alice, collectionId, parentNftId);
-
-    const childrenAfter = await getChildren(api, collectionId, parentNftId);
-
-    expect(childrenAfter.length === 0, 'Error: children should be burned').to.be.true;
-  });
-
-  it('burn child nft', async () => {
-    const collectionId = await createCollection(
-      api,
-      Alice,
-      'test-metadata',
-      null,
-      'test-symbol',
-    );
-
-    const parentNftId = await mintNft(
-      api,
-      Alice,
-      Alice,
-      collectionId,
-      'nft-metadata',
-    );
-
-    const childNftId = await mintNft(
-      api,
-      Alice,
-      Alice,
-      collectionId,
-      'nft-metadata',
-    );
-
-    const newOwnerNFT: NftIdTuple = [collectionId, parentNftId];
-
-    await sendNft(api, 'sent', Alice, collectionId, childNftId, newOwnerNFT);
-
-    const childrenBefore = await getChildren(api, collectionId, parentNftId);
-    expect(childrenBefore.length === 1, 'Error: parent NFT should have children')
-      .to.be.true;
-
-    const child = childrenBefore[0];
-    expect(child.collectionId.eq(collectionId), 'Error: invalid child collection Id')
-      .to.be.true;
-
-    expect(child.nftId.eq(childNftId), 'Error: invalid child NFT Id')
-      .to.be.true;
-
-    await burnNft(api, Alice, collectionId, childNftId);
-
-    const childrenAfter = await getChildren(api, collectionId, parentNftId);
-
-    expect(childrenAfter.length === 0, 'Error: children should be burned').to.be.true;
-  });
-
-  it('[negative] burn non-existing NFT', async () => {
-    await createCollection(
-      api,
-      Alice,
-      'test-metadata',
-      null,
-      'test-symbol',
-    ).then(async (collectionId) => {
-      const tx = burnNft(api, Alice, collectionId, 99999);
-      await expectTxFailure(/rmrkCore\.NoAvailableNftId/, tx);
-    });
-  });
-
-  it('[negative] burn not an owner NFT user', async () => {
-    await createCollection(
-      api,
-      Alice,
-      'test-metadata',
-      null,
-      'test-symbol',
-    ).then(async (collectionId) => {
-      const nftId = await mintNft(
-        api,
-        Alice,
-        Alice,
-        collectionId,
-        'nft-metadata',
-      );
-      const tx = burnNft(api, Bob, collectionId, nftId);
-      await expectTxFailure(/rmrkCore\.NoPermission/, tx);
-    });
-  });
-
-  after(() => {
-    api.disconnect();
-  });
-});
addedtests/src/rmrk/changeCollectionIssuer.seqtest.tsdiffbeforeafterboth
--- /dev/null
+++ b/tests/src/rmrk/changeCollectionIssuer.seqtest.ts
@@ -0,0 +1,56 @@
+import {getApiConnection} from '../substrate/substrate-api';
+import {requirePallets, Pallets} from '../deprecated-helpers/helpers';
+import {expectTxFailure} from './util/helpers';
+import {
+  changeIssuer,
+  createCollection,
+} from './util/tx';
+
+describe('integration test: collection issuer', () => {
+  const alice = '//Alice';
+  const bob = '//Bob';
+
+  let api: any;
+  before(async function() {
+    api = await getApiConnection();
+    await requirePallets(this, [Pallets.RmrkCore]);
+  });
+
+
+
+  it('change collection issuer', async () => {
+    await createCollection(
+      api,
+      alice,
+      'test-metadata',
+      null,
+      'test-symbol',
+    ).then(async (collectionId) => {
+      await changeIssuer(api, alice, collectionId, bob);
+    });
+  });
+
+  it('[negative] change not an owner NFT collection issuer', async () => {
+    await createCollection(api, bob, 'test-metadata', null, 'test-symbol').then(async (collectionId) => {
+      const tx = changeIssuer(api, alice, collectionId, bob);
+      await expectTxFailure(/rmrkCore\.NoPermission/, tx);
+    });
+  });
+
+  it('[negative] change non-existigit NFT collection issuer', async () => {
+    await createCollection(
+      api,
+      alice,
+      'test-metadata',
+      null,
+      'test-symbol',
+    ).then(async () => {
+      const tx = changeIssuer(api, alice, 99999, bob);
+      await expectTxFailure(/rmrkCore\.CollectionUnknown/, tx);
+    });
+  });
+
+  after(() => {
+    api.disconnect();
+  });
+});
deletedtests/src/rmrk/changeCollectionIssuer.test.tsdiffbeforeafterboth
--- a/tests/src/rmrk/changeCollectionIssuer.test.ts
+++ /dev/null
@@ -1,56 +0,0 @@
-import {getApiConnection} from '../substrate/substrate-api';
-import {requirePallets, Pallets} from '../deprecated-helpers/helpers';
-import {expectTxFailure} from './util/helpers';
-import {
-  changeIssuer,
-  createCollection,
-} from './util/tx';
-
-describe('integration test: collection issuer', () => {
-  const Alice = '//Alice';
-  const Bob = '//Bob';
-
-  let api: any;
-  before(async function() {
-    api = await getApiConnection();
-    await requirePallets(this, [Pallets.RmrkCore]);
-  });
-
-
-
-  it('change collection issuer', async () => {
-    await createCollection(
-      api,
-      Alice,
-      'test-metadata',
-      null,
-      'test-symbol',
-    ).then(async (collectionId) => {
-      await changeIssuer(api, Alice, collectionId, Bob);
-    });
-  });
-
-  it('[negative] change not an owner NFT collection issuer', async () => {
-    await createCollection(api, Bob, 'test-metadata', null, 'test-symbol').then(async (collectionId) => {
-      const tx = changeIssuer(api, Alice, collectionId, Bob);
-      await expectTxFailure(/rmrkCore\.NoPermission/, tx);
-    });
-  });
-
-  it('[negative] change non-existigit NFT collection issuer', async () => {
-    await createCollection(
-      api,
-      Alice,
-      'test-metadata',
-      null,
-      'test-symbol',
-    ).then(async () => {
-      const tx = changeIssuer(api, Alice, 99999, Bob);
-      await expectTxFailure(/rmrkCore\.CollectionUnknown/, tx);
-    });
-  });
-
-  after(() => {
-    api.disconnect();
-  });
-});
addedtests/src/rmrk/createBase.seqtest.tsdiffbeforeafterboth
--- /dev/null
+++ b/tests/src/rmrk/createBase.seqtest.ts
@@ -0,0 +1,88 @@
+import {getApiConnection} from '../substrate/substrate-api';
+import {requirePallets, Pallets} from '../deprecated-helpers/helpers';
+import {createCollection, createBase} from './util/tx';
+
+describe('integration test: create new Base', () => {
+  let api: any;
+  before(async function() {
+    api = await getApiConnection();
+    await requirePallets(this, [Pallets.RmrkCore, Pallets.RmrkEquip]);
+  });
+
+  const alice = '//Alice';
+
+  it('create empty Base', async () => {
+    await createBase(api, alice, 'empty-base-type', 'EBase', []);
+  });
+
+  it('create Base with fixed part', async () => {
+    await createBase(api, alice, 'fixedpart-base-type', 'FPBase', [
+      {
+        'FixedPart': {
+          id: 42,
+          z: 0,
+          src: 'some-fixed-url',
+        },
+      },
+    ]);
+  });
+
+  it('create Base with slot part (no collection)', async () => {
+    await createBase(api, alice, 'slotpart-base-type', 'SPBase', [
+      {
+        'SlotPart': {
+          id: 112,
+          equippable: 'Empty',
+          z: 0,
+          src: 'some-fallback-slot-url',
+        },
+      },
+    ]);
+  });
+
+  it('create Base with slot part (any collection)', async () => {
+    await createBase(api, alice, 'slotpartany-base-type', 'SPABase', [
+      {
+        'SlotPart': {
+          id: 222,
+          equippable: 'All',
+          z: 1,
+          src: 'some-fallback-slot-url',
+        },
+      },
+    ]);
+  });
+
+  it('create Base with slot part (custom collections)', async () => {
+    const firstCollectionId = await createCollection(
+      api,
+      alice,
+      'first-collection-meta',
+      null,
+      'first-collection',
+    );
+
+    const secondCollectionId = await createCollection(
+      api,
+      alice,
+      'first-collection-meta',
+      null,
+      'first-collection',
+    );
+
+    await createBase(api, alice, 'slotpartcustom-base-type', 'SPCBase', [
+      {
+        'SlotPart': {
+          id: 1024,
+          equippable: {
+            'Custom': [firstCollectionId, secondCollectionId],
+          },
+          z: 2,
+          src: 'some-fallback-slot-url',
+        },
+      },
+    ]);
+  });
+
+  after(() => { api.disconnect(); });
+});
deletedtests/src/rmrk/createBase.test.tsdiffbeforeafterboth
--- a/tests/src/rmrk/createBase.test.ts
+++ /dev/null
@@ -1,88 +0,0 @@
-import {getApiConnection} from '../substrate/substrate-api';
-import {requirePallets, Pallets} from '../deprecated-helpers/helpers';
-import {createCollection, createBase} from './util/tx';
-
-describe('integration test: create new Base', () => {
-  let api: any;
-  before(async function() {
-    api = await getApiConnection();
-    await requirePallets(this, [Pallets.RmrkCore, Pallets.RmrkEquip]);
-  });
-
-  const alice = '//Alice';
-
-  it('create empty Base', async () => {
-    await createBase(api, alice, 'empty-base-type', 'EBase', []);
-  });
-
-  it('create Base with fixed part', async () => {
-    await createBase(api, alice, 'fixedpart-base-type', 'FPBase', [
-      {
-        'FixedPart': {
-          id: 42,
-          z: 0,
-          src: 'some-fixed-url',
-        },
-      },
-    ]);
-  });
-
-  it('create Base with slot part (no collection)', async () => {
-    await createBase(api, alice, 'slotpart-base-type', 'SPBase', [
-      {
-        'SlotPart': {
-          id: 112,
-          equippable: 'Empty',
-          z: 0,
-          src: 'some-fallback-slot-url',
-        },
-      },
-    ]);
-  });
-
-  it('create Base with slot part (any collection)', async () => {
-    await createBase(api, alice, 'slotpartany-base-type', 'SPABase', [
-      {
-        'SlotPart': {
-          id: 222,
-          equippable: 'All',
-          z: 1,
-          src: 'some-fallback-slot-url',
-        },
-      },
-    ]);
-  });
-
-  it('create Base with slot part (custom collections)', async () => {
-    const firstCollectionId = await createCollection(
-      api,
-      alice,
-      'first-collection-meta',
-      null,
-      'first-collection',
-    );
-
-    const secondCollectionId = await createCollection(
-      api,
-      alice,
-      'first-collection-meta',
-      null,
-      'first-collection',
-    );
-
-    await createBase(api, alice, 'slotpartcustom-base-type', 'SPCBase', [
-      {
-        'SlotPart': {
-          id: 1024,
-          equippable: {
-            'Custom': [firstCollectionId, secondCollectionId],
-          },
-          z: 2,
-          src: 'some-fallback-slot-url',
-        },
-      },
-    ]);
-  });
-
-  after(() => { api.disconnect(); });
-});
addedtests/src/rmrk/createCollection.seqtest.tsdiffbeforeafterboth
--- /dev/null
+++ b/tests/src/rmrk/createCollection.seqtest.ts
@@ -0,0 +1,25 @@
+import {getApiConnection} from '../substrate/substrate-api';
+import {requirePallets, Pallets} from '../deprecated-helpers/helpers';
+import {createCollection} from './util/tx';
+
+describe('Integration test: create new collection', () => {
+  let api: any;
+  before(async function () {
+    api = await getApiConnection();
+    await requirePallets(this, [Pallets.RmrkCore]);
+  });
+
+
+
+  const alice = '//Alice';
+
+  it('create NFT collection', async () => {
+    await createCollection(api, alice, 'test-metadata', 42, 'test-symbol');
+  });
+
+  it('create NFT collection without token limit', async () => {
+    await createCollection(api, alice, 'no-limit-metadata', null, 'no-limit-symbol');
+  });
+
+  after(() => { api.disconnect(); });
+});
deletedtests/src/rmrk/createCollection.test.tsdiffbeforeafterboth
--- a/tests/src/rmrk/createCollection.test.ts
+++ /dev/null
@@ -1,25 +0,0 @@
-import {getApiConnection} from '../substrate/substrate-api';
-import {requirePallets, Pallets} from '../deprecated-helpers/helpers';
-import {createCollection} from './util/tx';
-
-describe('Integration test: create new collection', () => {
-  let api: any;
-  before(async function () {
-    api = await getApiConnection();
-    await requirePallets(this, [Pallets.RmrkCore]);
-  });
-
-
-
-  const alice = '//Alice';
-
-  it('create NFT collection', async () => {
-    await createCollection(api, alice, 'test-metadata', 42, 'test-symbol');
-  });
-
-  it('create NFT collection without token limit', async () => {
-    await createCollection(api, alice, 'no-limit-metadata', null, 'no-limit-symbol');
-  });
-
-  after(() => { api.disconnect(); });
-});
addedtests/src/rmrk/deleteCollection.seqtest.tsdiffbeforeafterboth
--- /dev/null
+++ b/tests/src/rmrk/deleteCollection.seqtest.ts
@@ -0,0 +1,49 @@
+import {getApiConnection} from '../substrate/substrate-api';
+import {requirePallets, Pallets} from '../deprecated-helpers/helpers';
+import {expectTxFailure} from './util/helpers';
+import {createCollection, deleteCollection} from './util/tx';
+
+describe('integration test: delete collection', () => {
+  let api: any;
+  before(async function () {
+    api = await getApiConnection();
+    await requirePallets(this, [Pallets.RmrkCore]);
+  });
+
+  const alice = '//Alice';
+  const bob = '//Bob';
+
+  it('delete NFT collection', async () => {
+    await createCollection(
+      api,
+      alice,
+      'test-metadata',
+      null,
+      'test-symbol',
+    ).then(async (collectionId) => {
+      await deleteCollection(api, alice, collectionId.toString());
+    });
+  });
+
+  it('[negative] delete non-existing NFT collection', async () => {
+    const tx = deleteCollection(api, alice, '99999');
+    await expectTxFailure(/rmrkCore\.CollectionUnknown/, tx);
+  });
+
+  it('[negative] delete not an owner NFT collection', async () => {
+    await createCollection(
+      api,
+      alice,
+      'test-metadata',
+      null,
+      'test-symbol',
+    ).then(async (collectionId) => {
+      const tx = deleteCollection(api, bob, collectionId.toString());
+      await expectTxFailure(/rmrkCore.NoPermission/, tx);
+    });
+  });
+
+  after(() => {
+    api.disconnect();
+  });
+});
deletedtests/src/rmrk/deleteCollection.test.tsdiffbeforeafterboth
--- a/tests/src/rmrk/deleteCollection.test.ts
+++ /dev/null
@@ -1,49 +0,0 @@
-import {getApiConnection} from '../substrate/substrate-api';
-import {requirePallets, Pallets} from '../deprecated-helpers/helpers';
-import {expectTxFailure} from './util/helpers';
-import {createCollection, deleteCollection} from './util/tx';
-
-describe('integration test: delete collection', () => {
-  let api: any;
-  before(async function () {
-    api = await getApiConnection();
-    await requirePallets(this, [Pallets.RmrkCore]);
-  });
-
-  const Alice = '//Alice';
-  const Bob = '//Bob';
-
-  it('delete NFT collection', async () => {
-    await createCollection(
-      api,
-      Alice,
-      'test-metadata',
-      null,
-      'test-symbol',
-    ).then(async (collectionId) => {
-      await deleteCollection(api, Alice, collectionId.toString());
-    });
-  });
-
-  it('[negative] delete non-existing NFT collection', async () => {
-    const tx = deleteCollection(api, Alice, '99999');
-    await expectTxFailure(/rmrkCore\.CollectionUnknown/, tx);
-  });
-
-  it('[negative] delete not an owner NFT collection', async () => {
-    await createCollection(
-      api,
-      Alice,
-      'test-metadata',
-      null,
-      'test-symbol',
-    ).then(async (collectionId) => {
-      const tx = deleteCollection(api, Bob, collectionId.toString());
-      await expectTxFailure(/rmrkCore.NoPermission/, tx);
-    });
-  });
-
-  after(() => {
-    api.disconnect();
-  });
-});
addedtests/src/rmrk/equipNft.seqtest.tsdiffbeforeafterboth
--- /dev/null
+++ b/tests/src/rmrk/equipNft.seqtest.ts
@@ -0,0 +1,343 @@
+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 {
+  addNftComposableResource,
+  addNftSlotResource,
+  createBase,
+  createCollection,
+  equipNft,
+  mintNft,
+  sendNft,
+  unequipNft,
+} from './util/tx';
+
+const alice = '//Alice';
+const bob = '//Bob';
+
+const composableParts: number[] = [5, 2, 7];
+const composableSrc = 'test-cmp-src';
+const composableMetadata = 'test-cmp-metadata';
+const composableLicense = 'test-comp-license';
+const composableThumb = 'test-comp-thumb';
+
+const slotSrc = 'test-slot-src';
+const slotLicense = 'test-slot-license';
+const slotMetadata = 'test-slot-metadata';
+const slotThumb = 'test-slot-thumb';
+
+const slotId = 1;
+
+async function createTestCollection(api: ApiPromise): Promise<number> {
+  return createCollection(
+    api,
+    alice,
+    'test-metadata',
+    null,
+    'test-symbol',
+  );
+}
+
+async function mintTestNft(api: ApiPromise, collectionId: number): Promise<number> {
+  return await mintNft(
+    api,
+    alice,
+    alice,
+    collectionId,
+    'nft-metadata',
+  );
+}
+
+async function mintChildNft(api: ApiPromise, collectionId: number, parentNftId: number): Promise<number> {
+  const nftChildId = await mintTestNft(api, collectionId);
+
+  const parentNFT: NftIdTuple = [collectionId, parentNftId];
+
+  await sendNft(api, 'sent', alice, collectionId, nftChildId, parentNFT);
+
+  return nftChildId;
+}
+
+async function createTestBase(api: ApiPromise): Promise<number> {
+  return createBase(api, alice, 'test-base', 'DTBase', [
+    {
+      SlotPart: {
+        id: slotId,
+        equippable: 'All',
+        z: 1,
+        src: slotSrc,
+      },
+    },
+  ]);
+}
+
+async function addTestComposable(api: ApiPromise, collectionId: number, nftId: number, baseId: number) {
+  await addNftComposableResource(
+    api,
+    alice,
+    'added',
+    collectionId,
+    nftId,
+    composableParts,
+    baseId,
+    composableSrc,
+    composableMetadata,
+    composableLicense,
+    composableThumb,
+  );
+}
+
+async function addTestSlot(api: ApiPromise, collectionId: number, nftId: number, baseId: number, slotId: number): Promise<number> {
+  return await addNftSlotResource(
+    api,
+    alice,
+    'added',
+    collectionId,
+    nftId,
+    baseId,
+    slotId,
+    slotSrc,
+    slotMetadata,
+    slotLicense,
+    slotThumb,
+  );
+}
+
+async function checkEquipStatus(
+  api: ApiPromise,
+  expectedStatus: 'equipped' | 'unequipped',
+  collectionId: number,
+  nftId: number,
+) {
+  const itemNftDataOpt = await getNft(api, collectionId, nftId);
+  expect(itemNftDataOpt.isSome, 'Error: unable to fetch item NFT data');
+
+  const itemNftData = itemNftDataOpt.unwrap();
+  expect(itemNftData.equipped.isTrue, `Error: item NFT should be ${expectedStatus}`)
+    .to.be.equal(expectedStatus === 'equipped');
+}
+
+describe.skip('integration test: Equip NFT', () => {
+
+  let api: any;
+  
+  before(async function () {
+    api = await getApiConnection();
+    await requirePallets(this, [Pallets.RmrkCore, Pallets.RmrkEquip]);
+  });
+
+  it('equip nft', async () => {
+    const collectionId = await createTestCollection(api);
+    const nftParentId = await mintTestNft(api, collectionId);
+    const nftChildId = await mintChildNft(api, collectionId, nftParentId);
+
+    const baseId = await createTestBase(api);
+
+    await addTestComposable(api, collectionId, nftParentId, baseId);
+    const resourceId = await addTestSlot(api, collectionId, nftChildId, baseId, slotId);
+
+    const equipperNFT: NftIdTuple = [collectionId, nftParentId];
+    const itemNFT: NftIdTuple = [collectionId, nftChildId];
+
+    await equipNft(api, alice, itemNFT, equipperNFT, resourceId, baseId, slotId);
+
+    await checkEquipStatus(api, 'equipped', collectionId, nftChildId);
+  });
+
+  it('unequip nft', async () => {
+    const collectionId = await createTestCollection(api);
+    const nftParentId = await mintTestNft(api, collectionId);
+    const nftChildId = await mintChildNft(api, collectionId, nftParentId);
+
+    const baseId = await createTestBase(api);
+
+    await addTestComposable(api, collectionId, nftParentId, baseId);
+    const resourceId = await addTestSlot(api, collectionId, nftChildId, baseId, slotId);
+
+    const equipperNFT: NftIdTuple = [collectionId, nftParentId];
+    const itemNFT: NftIdTuple = [collectionId, nftChildId];
+
+    await equipNft(api, alice, itemNFT, equipperNFT, resourceId, baseId, slotId);
+
+    await checkEquipStatus(api, 'equipped', collectionId, nftChildId);
+
+    await unequipNft(api, alice, itemNFT, equipperNFT, resourceId, baseId, slotId);
+    await checkEquipStatus(api, 'unequipped', collectionId, nftChildId);
+  });
+
+  it('[negative] equip NFT onto non-existing NFT', async () => {
+    const collectionId = await createTestCollection(api);
+
+    const nftChildId = await mintNft(
+      api,
+      alice,
+      alice,
+      collectionId,
+      'nft-metadata',
+    );
+
+    const itemNFT: NftIdTuple = [collectionId, nftChildId];
+    const invalidEquipperNFT: NftIdTuple = [collectionId, 9999999];
+
+    const baseId = 0;
+    const resourceId = 0;
+
+    const tx = equipNft(api, alice, itemNFT, invalidEquipperNFT, resourceId, baseId, slotId);
+    await expectTxFailure(/rmrkCore\.NoAvailableNftId/, tx);
+  });
+
+  it('[negative] equip non-existing NFT', async () => {
+    const collectionId = await createTestCollection(api);
+    const nftParentId = await mintNft(
+      api,
+      alice,
+      alice,
+      collectionId,
+      'nft-metadata',
+    );
+
+    const baseId = await createTestBase(api);
+
+    await addTestComposable(api, collectionId, nftParentId, baseId);
+
+    const equipperNFT: NftIdTuple = [collectionId, nftParentId];
+    const invalidItemNFT: NftIdTuple = [collectionId, 99999999];
+
+    const resourceId = 0;
+
+    const tx = equipNft(api, alice, invalidItemNFT, equipperNFT, resourceId, baseId, slotId);
+    await expectTxFailure(/rmrkCore\.NoAvailableNftId/, tx);
+  });
+
+  it('[negative] equip NFT by a not-an-owner user', async () => {
+    const collectionId = await createTestCollection(api);
+    const nftParentId = await mintTestNft(api, collectionId);
+    const nftChildId = await mintChildNft(api, collectionId, nftParentId);
+
+    const baseId = await createTestBase(api);
+
+    await addTestComposable(api, collectionId, nftParentId, baseId);
+
+    const equipperNFT: NftIdTuple = [collectionId, nftParentId];
+    const itemNFT: NftIdTuple = [collectionId, nftChildId];
+
+    const resourceId = await addTestSlot(api, collectionId, nftChildId, baseId, slotId);
+
+    const tx = equipNft(api, bob, itemNFT, equipperNFT, resourceId, baseId, slotId);
+    await expectTxFailure(/rmrkEquip\.PermissionError/, tx);
+  });
+
+  it('[negative] unable to equip NFT onto indirect parent NFT', async () => {
+    const collectionId = await createTestCollection(api);
+    const nftParentId = await mintTestNft(api, collectionId);
+    const nftChildId = await mintChildNft(api, collectionId, nftParentId);
+    const nftGrandchildId = await mintChildNft(api, collectionId, nftChildId);
+
+    const baseId = await createTestBase(api);
+
+    await addTestComposable(api, collectionId, nftParentId, baseId);
+    const resourceId = await addTestSlot(api, collectionId, nftGrandchildId, baseId, slotId);
+
+    const equipperNFT: NftIdTuple = [collectionId, nftParentId];
+    const itemNFT: NftIdTuple = [collectionId, nftGrandchildId];
+
+    const tx = equipNft(api, alice, itemNFT, equipperNFT, resourceId, baseId, slotId);
+    await expectTxFailure(/rmrkEquip\.MustBeDirectParent/, tx);
+  });
+
+  it('[negative] unable to equip NFT onto parent NFT with another base', async () => {
+    const collectionId = await createTestCollection(api);
+    const nftParentId = await mintTestNft(api, collectionId);
+    const nftChildId = await mintChildNft(api, collectionId, nftParentId);
+
+    const baseId = await createTestBase(api);
+
+    await addTestComposable(api, collectionId, nftParentId, baseId);
+    const resourceId = await addTestSlot(api, collectionId, nftChildId, baseId, slotId);
+
+    const equipperNFT: NftIdTuple = [collectionId, nftParentId];
+    const itemNFT: NftIdTuple = [collectionId, nftChildId];
+
+    const invalidBaseId = 99999;
+
+    const tx = equipNft(api, alice, itemNFT, equipperNFT, resourceId, invalidBaseId, slotId);
+    await expectTxFailure(/rmrkEquip\.NoResourceForThisBaseFoundOnNft/, tx);
+  });
+
+  it('[negative] unable to equip NFT into slot with another id', async () => {
+    const collectionId = await createTestCollection(api);
+    const nftParentId = await mintTestNft(api, collectionId);
+    const nftChildId = await mintChildNft(api, collectionId, nftParentId);
+
+    const baseId = await createTestBase(api);
+
+    await addTestComposable(api, collectionId, nftParentId, baseId);
+    const resourceId = await addTestSlot(api, collectionId, nftChildId, baseId, slotId);
+
+    const equipperNFT: NftIdTuple = [collectionId, nftParentId];
+    const itemNFT: NftIdTuple = [collectionId, nftChildId];
+
+    const incorrectSlotId = slotId + 1;
+    const tx = equipNft(api, alice, itemNFT, equipperNFT, resourceId, baseId, incorrectSlotId);
+    await expectTxFailure(/rmrkEquip\.ItemHasNoResourceToEquipThere/, tx);
+  });
+
+  it('[negative] unable to equip NFT with incorrect slot (fixed part)', async () => {
+    const collectionId = await createTestCollection(api);
+    const nftParentId = await mintTestNft(api, collectionId);
+    const nftChildId = await mintChildNft(api, collectionId, nftParentId);
+
+    const baseId = await createBase(api, alice, 'test-base', 'DTBase', [
+      {
+        FixedPart: {
+          id: slotId,
+          equippable: 'All',
+          z: 1,
+          src: slotSrc,
+        },
+      },
+    ]);
+
+    await addTestComposable(api, collectionId, nftParentId, baseId);
+    const resourceId = await addTestSlot(api, collectionId, nftChildId, baseId, slotId);
+
+    const equipperNFT: NftIdTuple = [collectionId, nftParentId];
+    const itemNFT: NftIdTuple = [collectionId, nftChildId];
+
+    const tx = equipNft(api, alice, itemNFT, equipperNFT, resourceId, baseId, slotId);
+    await expectTxFailure(/rmrkEquip\.CantEquipFixedPart/, tx);
+  });
+
+  it('[negative] unable to equip NFT from a collection that is not allowed by the slot', async () => {
+    const collectionId = await createTestCollection(api);
+    const nftParentId = await mintTestNft(api, collectionId);
+    const nftChildId = await mintChildNft(api, collectionId, nftParentId);
+
+    const baseId = await createBase(api, alice, 'test-base', 'DTBase', [
+      {
+        SlotPart: {
+          id: 1,
+          z: 1,
+          equippable: 'Empty',
+          src: slotSrc,
+        },
+      },
+    ]);
+
+    await addTestComposable(api, collectionId, nftParentId, baseId);
+    const resourceId = await addTestSlot(api, collectionId, nftChildId, baseId, slotId);
+
+    const equipperNFT: NftIdTuple = [collectionId, nftParentId];
+    const itemNFT: NftIdTuple = [collectionId, nftChildId];
+
+    const tx = equipNft(api, alice, itemNFT, equipperNFT, resourceId, baseId, slotId);
+    await expectTxFailure(/rmrkEquip\.CollectionNotEquippable/, tx);
+  });
+
+  after(() => {
+    api.disconnect();
+  });
+});
deletedtests/src/rmrk/equipNft.test.tsdiffbeforeafterboth
--- a/tests/src/rmrk/equipNft.test.ts
+++ /dev/null
@@ -1,343 +0,0 @@
-import {ApiPromise} from '@polkadot/api';
-import {expect} from 'chai';
-import {getApiConnection} from '../substrate/substrate-api';
-import {requirePallets, Pallets} from '../deprecated-helpers/helpers';
-import {getNft, getParts, NftIdTuple} from './util/fetch';
-import {expectTxFailure} from './util/helpers';
-import {
-  addNftComposableResource,
-  addNftSlotResource,
-  createBase,
-  createCollection,
-  equipNft,
-  mintNft,
-  sendNft,
-  unequipNft,
-} from './util/tx';
-
-const Alice = '//Alice';
-const Bob = '//Bob';
-
-const composableParts: number[] = [5, 2, 7];
-const composableSrc = 'test-cmp-src';
-const composableMetadata = 'test-cmp-metadata';
-const composableLicense = 'test-comp-license';
-const composableThumb = 'test-comp-thumb';
-
-const slotSrc = 'test-slot-src';
-const slotLicense = 'test-slot-license';
-const slotMetadata = 'test-slot-metadata';
-const slotThumb = 'test-slot-thumb';
-
-const slotId = 1;
-
-async function createTestCollection(api: ApiPromise): Promise<number> {
-  return createCollection(
-    api,
-    Alice,
-    'test-metadata',
-    null,
-    'test-symbol',
-  );
-}
-
-async function mintTestNft(api: ApiPromise, collectionId: number): Promise<number> {
-  return await mintNft(
-    api,
-    Alice,
-    Alice,
-    collectionId,
-    'nft-metadata',
-  );
-}
-
-async function mintChildNft(api: ApiPromise, collectionId: number, parentNftId: number): Promise<number> {
-  const nftChildId = await mintTestNft(api, collectionId);
-
-  const parentNFT: NftIdTuple = [collectionId, parentNftId];
-
-  await sendNft(api, 'sent', Alice, collectionId, nftChildId, parentNFT);
-
-  return nftChildId;
-}
-
-async function createTestBase(api: ApiPromise): Promise<number> {
-  return createBase(api, Alice, 'test-base', 'DTBase', [
-    {
-      SlotPart: {
-        id: slotId,
-        equippable: 'All',
-        z: 1,
-        src: slotSrc,
-      },
-    },
-  ]);
-}
-
-async function addTestComposable(api: ApiPromise, collectionId: number, nftId: number, baseId: number) {
-  await addNftComposableResource(
-    api,
-    Alice,
-    'added',
-    collectionId,
-    nftId,
-    composableParts,
-    baseId,
-    composableSrc,
-    composableMetadata,
-    composableLicense,
-    composableThumb,
-  );
-}
-
-async function addTestSlot(api: ApiPromise, collectionId: number, nftId: number, baseId: number, slotId: number): Promise<number> {
-  return await addNftSlotResource(
-    api,
-    Alice,
-    'added',
-    collectionId,
-    nftId,
-    baseId,
-    slotId,
-    slotSrc,
-    slotMetadata,
-    slotLicense,
-    slotThumb,
-  );
-}
-
-async function checkEquipStatus(
-  api: ApiPromise,
-  expectedStatus: 'equipped' | 'unequipped',
-  collectionId: number,
-  nftId: number,
-) {
-  const itemNftDataOpt = await getNft(api, collectionId, nftId);
-  expect(itemNftDataOpt.isSome, 'Error: unable to fetch item NFT data');
-
-  const itemNftData = itemNftDataOpt.unwrap();
-  expect(itemNftData.equipped.isTrue, `Error: item NFT should be ${expectedStatus}`)
-    .to.be.equal(expectedStatus === 'equipped');
-}
-
-describe.skip('integration test: Equip NFT', () => {
-
-  let api: any;
-  
-  before(async function () {
-    api = await getApiConnection();
-    await requirePallets(this, [Pallets.RmrkCore, Pallets.RmrkEquip]);
-  });
-
-  it('equip nft', async () => {
-    const collectionId = await createTestCollection(api);
-    const nftParentId = await mintTestNft(api, collectionId);
-    const nftChildId = await mintChildNft(api, collectionId, nftParentId);
-
-    const baseId = await createTestBase(api);
-
-    await addTestComposable(api, collectionId, nftParentId, baseId);
-    const resourceId = await addTestSlot(api, collectionId, nftChildId, baseId, slotId);
-
-    const equipperNFT: NftIdTuple = [collectionId, nftParentId];
-    const itemNFT: NftIdTuple = [collectionId, nftChildId];
-
-    await equipNft(api, Alice, itemNFT, equipperNFT, resourceId, baseId, slotId);
-
-    await checkEquipStatus(api, 'equipped', collectionId, nftChildId);
-  });
-
-  it('unequip nft', async () => {
-    const collectionId = await createTestCollection(api);
-    const nftParentId = await mintTestNft(api, collectionId);
-    const nftChildId = await mintChildNft(api, collectionId, nftParentId);
-
-    const baseId = await createTestBase(api);
-
-    await addTestComposable(api, collectionId, nftParentId, baseId);
-    const resourceId = await addTestSlot(api, collectionId, nftChildId, baseId, slotId);
-
-    const equipperNFT: NftIdTuple = [collectionId, nftParentId];
-    const itemNFT: NftIdTuple = [collectionId, nftChildId];
-
-    await equipNft(api, Alice, itemNFT, equipperNFT, resourceId, baseId, slotId);
-
-    await checkEquipStatus(api, 'equipped', collectionId, nftChildId);
-
-    await unequipNft(api, Alice, itemNFT, equipperNFT, resourceId, baseId, slotId);
-    await checkEquipStatus(api, 'unequipped', collectionId, nftChildId);
-  });
-
-  it('[negative] equip NFT onto non-existing NFT', async () => {
-    const collectionId = await createTestCollection(api);
-
-    const nftChildId = await mintNft(
-      api,
-      Alice,
-      Alice,
-      collectionId,
-      'nft-metadata',
-    );
-
-    const itemNFT: NftIdTuple = [collectionId, nftChildId];
-    const invalidEquipperNFT: NftIdTuple = [collectionId, 9999999];
-
-    const baseId = 0;
-    const resourceId = 0;
-
-    const tx = equipNft(api, Alice, itemNFT, invalidEquipperNFT, resourceId, baseId, slotId);
-    await expectTxFailure(/rmrkCore\.NoAvailableNftId/, tx);
-  });
-
-  it('[negative] equip non-existing NFT', async () => {
-    const collectionId = await createTestCollection(api);
-    const nftParentId = await mintNft(
-      api,
-      Alice,
-      Alice,
-      collectionId,
-      'nft-metadata',
-    );
-
-    const baseId = await createTestBase(api);
-
-    await addTestComposable(api, collectionId, nftParentId, baseId);
-
-    const equipperNFT: NftIdTuple = [collectionId, nftParentId];
-    const invalidItemNFT: NftIdTuple = [collectionId, 99999999];
-
-    const resourceId = 0;
-
-    const tx = equipNft(api, Alice, invalidItemNFT, equipperNFT, resourceId, baseId, slotId);
-    await expectTxFailure(/rmrkCore\.NoAvailableNftId/, tx);
-  });
-
-  it('[negative] equip NFT by a not-an-owner user', async () => {
-    const collectionId = await createTestCollection(api);
-    const nftParentId = await mintTestNft(api, collectionId);
-    const nftChildId = await mintChildNft(api, collectionId, nftParentId);
-
-    const baseId = await createTestBase(api);
-
-    await addTestComposable(api, collectionId, nftParentId, baseId);
-
-    const equipperNFT: NftIdTuple = [collectionId, nftParentId];
-    const itemNFT: NftIdTuple = [collectionId, nftChildId];
-
-    const resourceId = await addTestSlot(api, collectionId, nftChildId, baseId, slotId);
-
-    const tx = equipNft(api, Bob, itemNFT, equipperNFT, resourceId, baseId, slotId);
-    await expectTxFailure(/rmrkEquip\.PermissionError/, tx);
-  });
-
-  it('[negative] unable to equip NFT onto indirect parent NFT', async () => {
-    const collectionId = await createTestCollection(api);
-    const nftParentId = await mintTestNft(api, collectionId);
-    const nftChildId = await mintChildNft(api, collectionId, nftParentId);
-    const nftGrandchildId = await mintChildNft(api, collectionId, nftChildId);
-
-    const baseId = await createTestBase(api);
-
-    await addTestComposable(api, collectionId, nftParentId, baseId);
-    const resourceId = await addTestSlot(api, collectionId, nftGrandchildId, baseId, slotId);
-
-    const equipperNFT: NftIdTuple = [collectionId, nftParentId];
-    const itemNFT: NftIdTuple = [collectionId, nftGrandchildId];
-
-    const tx = equipNft(api, Alice, itemNFT, equipperNFT, resourceId, baseId, slotId);
-    await expectTxFailure(/rmrkEquip\.MustBeDirectParent/, tx);
-  });
-
-  it('[negative] unable to equip NFT onto parent NFT with another base', async () => {
-    const collectionId = await createTestCollection(api);
-    const nftParentId = await mintTestNft(api, collectionId);
-    const nftChildId = await mintChildNft(api, collectionId, nftParentId);
-
-    const baseId = await createTestBase(api);
-
-    await addTestComposable(api, collectionId, nftParentId, baseId);
-    const resourceId = await addTestSlot(api, collectionId, nftChildId, baseId, slotId);
-
-    const equipperNFT: NftIdTuple = [collectionId, nftParentId];
-    const itemNFT: NftIdTuple = [collectionId, nftChildId];
-
-    const invalidBaseId = 99999;
-
-    const tx = equipNft(api, Alice, itemNFT, equipperNFT, resourceId, invalidBaseId, slotId);
-    await expectTxFailure(/rmrkEquip\.NoResourceForThisBaseFoundOnNft/, tx);
-  });
-
-  it('[negative] unable to equip NFT into slot with another id', async () => {
-    const collectionId = await createTestCollection(api);
-    const nftParentId = await mintTestNft(api, collectionId);
-    const nftChildId = await mintChildNft(api, collectionId, nftParentId);
-
-    const baseId = await createTestBase(api);
-
-    await addTestComposable(api, collectionId, nftParentId, baseId);
-    const resourceId = await addTestSlot(api, collectionId, nftChildId, baseId, slotId);
-
-    const equipperNFT: NftIdTuple = [collectionId, nftParentId];
-    const itemNFT: NftIdTuple = [collectionId, nftChildId];
-
-    const incorrectSlotId = slotId + 1;
-    const tx = equipNft(api, Alice, itemNFT, equipperNFT, resourceId, baseId, incorrectSlotId);
-    await expectTxFailure(/rmrkEquip\.ItemHasNoResourceToEquipThere/, tx);
-  });
-
-  it('[negative] unable to equip NFT with incorrect slot (fixed part)', async () => {
-    const collectionId = await createTestCollection(api);
-    const nftParentId = await mintTestNft(api, collectionId);
-    const nftChildId = await mintChildNft(api, collectionId, nftParentId);
-
-    const baseId = await createBase(api, Alice, 'test-base', 'DTBase', [
-      {
-        FixedPart: {
-          id: slotId,
-          equippable: 'All',
-          z: 1,
-          src: slotSrc,
-        },
-      },
-    ]);
-
-    await addTestComposable(api, collectionId, nftParentId, baseId);
-    const resourceId = await addTestSlot(api, collectionId, nftChildId, baseId, slotId);
-
-    const equipperNFT: NftIdTuple = [collectionId, nftParentId];
-    const itemNFT: NftIdTuple = [collectionId, nftChildId];
-
-    const tx = equipNft(api, Alice, itemNFT, equipperNFT, resourceId, baseId, slotId);
-    await expectTxFailure(/rmrkEquip\.CantEquipFixedPart/, tx);
-  });
-
-  it('[negative] unable to equip NFT from a collection that is not allowed by the slot', async () => {
-    const collectionId = await createTestCollection(api);
-    const nftParentId = await mintTestNft(api, collectionId);
-    const nftChildId = await mintChildNft(api, collectionId, nftParentId);
-
-    const baseId = await createBase(api, Alice, 'test-base', 'DTBase', [
-      {
-        SlotPart: {
-          id: 1,
-          z: 1,
-          equippable: 'Empty',
-          src: slotSrc,
-        },
-      },
-    ]);
-
-    await addTestComposable(api, collectionId, nftParentId, baseId);
-    const resourceId = await addTestSlot(api, collectionId, nftChildId, baseId, slotId);
-
-    const equipperNFT: NftIdTuple = [collectionId, nftParentId];
-    const itemNFT: NftIdTuple = [collectionId, nftChildId];
-
-    const tx = equipNft(api, Alice, itemNFT, equipperNFT, resourceId, baseId, slotId);
-    await expectTxFailure(/rmrkEquip\.CollectionNotEquippable/, tx);
-  });
-
-  after(() => {
-    api.disconnect();
-  });
-});
addedtests/src/rmrk/getOwnedNfts.seqtest.tsdiffbeforeafterboth
--- /dev/null
+++ b/tests/src/rmrk/getOwnedNfts.seqtest.ts
@@ -0,0 +1,80 @@
+import {expect} from 'chai';
+import {getApiConnection} from '../substrate/substrate-api';
+import {requirePallets, Pallets} from '../deprecated-helpers/helpers';
+import {getOwnedNfts} from './util/fetch';
+import {mintNft, createCollection} from './util/tx';
+
+describe('integration test: get owned NFTs', () => {
+  let api: any;
+  
+  before(async function () {
+    api = await getApiConnection();
+    await requirePallets(this, [Pallets.RmrkCore]);
+  });
+
+
+  const alice = '//Alice';
+
+  it('fetch all NFTs owned by a user', async () => {
+    const owner = alice;
+    const collectionMetadata = 'aliceCollectionMetadata';
+    const collectionMax = null;
+    const collectionSymbol = 'AliceSym';
+    const recipientUri = null;
+    const royalty = null;
+    const nftMetadata = 'alice-NFT-metadata';
+
+    const collectionId = await createCollection(
+      api,
+      alice,
+      collectionMetadata,
+      collectionMax,
+      collectionSymbol,
+    );
+
+    const nftIds = [
+      await mintNft(
+        api,
+        alice,
+        owner,
+        collectionId,
+        nftMetadata + '-0',
+        recipientUri,
+        royalty,
+      ),
+      await mintNft(
+        api,
+        alice,
+        owner,
+        collectionId,
+        nftMetadata + '-1',
+        recipientUri,
+        royalty,
+      ),
+      await mintNft(
+        api,
+        alice,
+        owner,
+        collectionId,
+        nftMetadata + '-2',
+        recipientUri,
+        royalty,
+      ),
+    ];
+
+    const ownedNfts = await getOwnedNfts(api, alice, collectionId);
+
+    const isFound = (nftId: number) => {
+      return ownedNfts.find((ownedNftId) => {
+        return ownedNftId === nftId;
+      }) !== undefined;
+    };
+
+    nftIds.forEach((nftId) => {
+      expect(isFound(nftId), `NFT ${nftId} should be owned by ${alice}`)
+        .to.be.true;
+    });
+  });
+
+  after(() => { api.disconnect(); });
+});
deletedtests/src/rmrk/getOwnedNfts.test.tsdiffbeforeafterboth
--- a/tests/src/rmrk/getOwnedNfts.test.ts
+++ /dev/null
@@ -1,80 +0,0 @@
-import {expect} from 'chai';
-import {getApiConnection} from '../substrate/substrate-api';
-import {requirePallets, Pallets} from '../deprecated-helpers/helpers';
-import {getOwnedNfts} from './util/fetch';
-import {mintNft, createCollection} from './util/tx';
-
-describe('integration test: get owned NFTs', () => {
-  let api: any;
-  
-  before(async function () {
-    api = await getApiConnection();
-    await requirePallets(this, [Pallets.RmrkCore]);
-  });
-
-
-  const alice = '//Alice';
-
-  it('fetch all NFTs owned by a user', async () => {
-    const owner = alice;
-    const collectionMetadata = 'aliceCollectionMetadata';
-    const collectionMax = null;
-    const collectionSymbol = 'AliceSym';
-    const recipientUri = null;
-    const royalty = null;
-    const nftMetadata = 'alice-NFT-metadata';
-
-    const collectionId = await createCollection(
-      api,
-      alice,
-      collectionMetadata,
-      collectionMax,
-      collectionSymbol,
-    );
-
-    const nftIds = [
-      await mintNft(
-        api,
-        alice,
-        owner,
-        collectionId,
-        nftMetadata + '-0',
-        recipientUri,
-        royalty,
-      ),
-      await mintNft(
-        api,
-        alice,
-        owner,
-        collectionId,
-        nftMetadata + '-1',
-        recipientUri,
-        royalty,
-      ),
-      await mintNft(
-        api,
-        alice,
-        owner,
-        collectionId,
-        nftMetadata + '-2',
-        recipientUri,
-        royalty,
-      ),
-    ];
-
-    const ownedNfts = await getOwnedNfts(api, alice, collectionId);
-
-    const isFound = (nftId: number) => {
-      return ownedNfts.find((ownedNftId) => {
-        return ownedNftId === nftId;
-      }) !== undefined;
-    };
-
-    nftIds.forEach((nftId) => {
-      expect(isFound(nftId), `NFT ${nftId} should be owned by ${alice}`)
-        .to.be.true;
-    });
-  });
-
-  after(() => { api.disconnect(); });
-});
addedtests/src/rmrk/lockCollection.seqtest.tsdiffbeforeafterboth
--- /dev/null
+++ b/tests/src/rmrk/lockCollection.seqtest.ts
@@ -0,0 +1,119 @@
+import {getApiConnection} from '../substrate/substrate-api';
+import {requirePallets, Pallets} from '../deprecated-helpers/helpers';
+import {expectTxFailure} from './util/helpers';
+import {createCollection, lockCollection, mintNft} from './util/tx';
+
+describe('integration test: lock collection', () => {
+  const alice = '//Alice';
+  const bob = '//Bob';
+  const max = 5;
+
+  let api: any;
+  before(async function () {
+    api = await getApiConnection();
+    await requirePallets(this, [Pallets.RmrkCore]);
+  });
+
+  it('lock collection', async () => {
+    await createCollection(
+      api,
+      alice,
+      'test-metadata',
+      null,
+      'test-symbol',
+    ).then(async (collectionId) => {
+      await lockCollection(api, alice, collectionId);
+    });
+  });
+
+  it('[negative] lock non-existing NFT collection', async () => {
+    const tx = lockCollection(api, alice, 99999);
+    await expectTxFailure(/rmrkCore\.CollectionUnknown/, tx);
+  });
+
+  it('[negative] lock not an owner NFT collection issuer', async () => {
+    await createCollection(
+      api,
+      alice,
+      'test-metadata',
+      null,
+      'test-symbol',
+    ).then(async (collectionId) => {
+      const tx = lockCollection(api, bob, collectionId);
+      await expectTxFailure(/rmrkCore\.NoPermission/, tx);
+    });
+  });
+
+  it('lock collection with minting', async () => {
+    await createCollection(
+      api,
+      alice,
+      'test-metadata',
+      max,
+      'test-symbol',
+    ).then(async (collectionId) => {
+      for (let i = 0; i < 5; i++) {
+        await mintNft(
+          api,
+          alice,
+          alice,
+          collectionId,
+          'test-metadata',
+          null,
+          null,
+        );
+      }
+      await lockCollection(api, alice, collectionId, max);
+    });
+  });
+
+  it('[negative] unable to mint NFT inside a locked collection', async () => {
+    await createCollection(
+      api,
+      alice,
+      'test-metadata',
+      max,
+      'test-symbol',
+    ).then(async (collectionId) => {
+      await lockCollection(api, alice, collectionId);
+      const tx = mintNft(
+        api,
+        alice,
+        alice,
+        collectionId,
+        'test-metadata',
+        null,
+        null,
+      );
+      await expectTxFailure(/rmrkCore\.CollectionFullOrLocked/, tx);
+    });
+  });
+
+  it('[negative] unable to mint NFT inside a full collection', async () => {
+    await createCollection(api, alice, 'test-metadata', 1, 'test-symbol').then(async (collectionId) => {
+      await mintNft(
+        api,
+        alice,
+        alice,
+        collectionId,
+        'test-metadata',
+        null,
+        null,
+      );
+      const tx = mintNft(
+        api,
+        alice,
+        alice,
+        collectionId,
+        'test-metadata',
+        null,
+        null,
+      );
+      await expectTxFailure(/rmrkCore\.CollectionFullOrLocked/, tx);
+    });
+  });
+
+  after(() => {
+    api.disconnect();
+  });
+});
deletedtests/src/rmrk/lockCollection.test.tsdiffbeforeafterboth
--- a/tests/src/rmrk/lockCollection.test.ts
+++ /dev/null
@@ -1,119 +0,0 @@
-import {getApiConnection} from '../substrate/substrate-api';
-import {requirePallets, Pallets} from '../deprecated-helpers/helpers';
-import {expectTxFailure} from './util/helpers';
-import {createCollection, lockCollection, mintNft} from './util/tx';
-
-describe('integration test: lock collection', () => {
-  const Alice = '//Alice';
-  const Bob = '//Bob';
-  const Max = 5;
-
-  let api: any;
-  before(async function () {
-    api = await getApiConnection();
-    await requirePallets(this, [Pallets.RmrkCore]);
-  });
-
-  it('lock collection', async () => {
-    await createCollection(
-      api,
-      Alice,
-      'test-metadata',
-      null,
-      'test-symbol',
-    ).then(async (collectionId) => {
-      await lockCollection(api, Alice, collectionId);
-    });
-  });
-
-  it('[negative] lock non-existing NFT collection', async () => {
-    const tx = lockCollection(api, Alice, 99999);
-    await expectTxFailure(/rmrkCore\.CollectionUnknown/, tx);
-  });
-
-  it('[negative] lock not an owner NFT collection issuer', async () => {
-    await createCollection(
-      api,
-      Alice,
-      'test-metadata',
-      null,
-      'test-symbol',
-    ).then(async (collectionId) => {
-      const tx = lockCollection(api, Bob, collectionId);
-      await expectTxFailure(/rmrkCore\.NoPermission/, tx);
-    });
-  });
-
-  it('lock collection with minting', async () => {
-    await createCollection(
-      api,
-      Alice,
-      'test-metadata',
-      Max,
-      'test-symbol',
-    ).then(async (collectionId) => {
-      for (let i = 0; i < 5; i++) {
-        await mintNft(
-          api,
-          Alice,
-          Alice,
-          collectionId,
-          'test-metadata',
-          null,
-          null,
-        );
-      }
-      await lockCollection(api, Alice, collectionId, Max);
-    });
-  });
-
-  it('[negative] unable to mint NFT inside a locked collection', async () => {
-    await createCollection(
-      api,
-      Alice,
-      'test-metadata',
-      Max,
-      'test-symbol',
-    ).then(async (collectionId) => {
-      await lockCollection(api, Alice, collectionId);
-      const tx = mintNft(
-        api,
-        Alice,
-        Alice,
-        collectionId,
-        'test-metadata',
-        null,
-        null,
-      );
-      await expectTxFailure(/rmrkCore\.CollectionFullOrLocked/, tx);
-    });
-  });
-
-  it('[negative] unable to mint NFT inside a full collection', async () => {
-    await createCollection(api, Alice, 'test-metadata', 1, 'test-symbol').then(async (collectionId) => {
-      await mintNft(
-        api,
-        Alice,
-        Alice,
-        collectionId,
-        'test-metadata',
-        null,
-        null,
-      );
-      const tx = mintNft(
-        api,
-        Alice,
-        Alice,
-        collectionId,
-        'test-metadata',
-        null,
-        null,
-      );
-      await expectTxFailure(/rmrkCore\.CollectionFullOrLocked/, tx);
-    });
-  });
-
-  after(() => {
-    api.disconnect();
-  });
-});
addedtests/src/rmrk/mintNft.seqtest.tsdiffbeforeafterboth
--- /dev/null
+++ b/tests/src/rmrk/mintNft.seqtest.ts
@@ -0,0 +1,212 @@
+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 {createCollection, mintNft} from './util/tx';
+
+describe('integration test: mint new NFT', () => {
+  let api: any;
+ 
+  before(async function () {
+    api = await getApiConnection();
+    await requirePallets(this, [Pallets.RmrkCore]);
+  });
+
+
+  const alice = '//Alice';
+  const bob = '//Bob';
+  const maxCollectionId = 0xFFFFFFFF;
+  const maxNftId = 0xFFFFFFFF;
+
+  it('mint NFT', async () => {
+    const owner = null;
+    const collectionMetadata = 'mintingCollectionMetadata';
+    const collectionMax = null;
+    const collectionSymbol = 'MCS';
+    const recipientUri = null;
+    const royalty = null;
+    const nftMetadata = 'NFT-test-metadata';
+
+    const collectionId = await createCollection(
+      api,
+      alice,
+      collectionMetadata,
+      collectionMax,
+      collectionSymbol,
+    );
+
+    await mintNft(
+      api,
+      alice,
+      owner,
+      collectionId,
+      nftMetadata,
+      recipientUri,
+      royalty,
+    );
+  });
+
+  it('mint NFT and set another owner', async () => {
+    const owner = bob;
+    const collectionMetadata = 'setOwnerCollectionMetadata';
+    const collectionMax = null;
+    const collectionSymbol = 'SOCS';
+    const recipientUri = null;
+    const royalty = null;
+    const nftMetadata = 'setOwner-NFT-metadata';
+
+    const collectionId = await createCollection(
+      api,
+      alice,
+      collectionMetadata,
+      collectionMax,
+      collectionSymbol,
+    );
+
+    await mintNft(
+      api,
+      alice,
+      owner,
+      collectionId,
+      nftMetadata,
+      recipientUri,
+      royalty,
+    );
+  });
+
+  it('mint NFT with recipient and roalty', async () => {
+    const owner = alice;
+    const collectionMetadata = 'mintingCollectionMetadata';
+    const collectionMax = null;
+    const collectionSymbol = 'MCS';
+    const recipientUri = bob;
+    const royalty = 70000;
+    const nftMetadata = 'recipient-royalty-NFT-test-metadata';
+
+    const collectionId = await createCollection(
+      api,
+      alice,
+      collectionMetadata,
+      collectionMax,
+      collectionSymbol,
+    );
+
+    await mintNft(
+      api,
+      alice,
+      owner,
+      collectionId,
+      nftMetadata,
+      recipientUri,
+      royalty,
+    );
+  });
+
+  it('mint NFT with resources', async () => {
+    const owner = alice;
+    const collectionMetadata = 'mintingCollectionMetadata';
+    const collectionMax = null;
+    const collectionSymbol = 'MCS';
+    const nftMetadata = 'NFT-with-resources-test-metadata';
+    const resources = [
+      {
+        basic: {
+          metadata: 'basic-resource-nft-minting',
+        },
+      }, {
+        slot: {
+          metadata: 'slot-resource-nft-minting',
+          slot: 9,
+        },
+      }, {
+        composable: {
+          metadata: 'composable-resource-nft-minting',
+          parts: [0, 5, 2],
+        },
+      }, {
+        slot: {
+          metadata: 'slot-resource-nft-minting-2',
+          thumb: 'srnm2',
+          base: 5,
+        },
+      },
+    ];
+
+    const collectionId = await createCollection(
+      api,
+      alice,
+      collectionMetadata,
+      collectionMax,
+      collectionSymbol,
+    );
+
+    await mintNft(
+      api,
+      alice,
+      owner,
+      collectionId,
+      nftMetadata,
+      null,
+      null,
+      true,
+      resources,
+    );
+  });
+
+  it('[negative] unable to mint NFT within non-existing collection', async () => {
+    const owner = alice;
+    const recipientUri = null;
+    const royalty = null;
+    const nftMetadata = 'NFT-test-metadata';
+
+    const tx = mintNft(
+      api,
+      alice,
+      owner,
+      maxCollectionId,
+      nftMetadata,
+      recipientUri,
+      royalty,
+    );
+
+    await expectTxFailure(/rmrkCore\.CollectionUnknown/, tx);
+  });
+
+  it("[negative] unable to mint NFT by a user that isn't the owner of the collection", async () => {
+    const owner = alice;
+    const collectionMetadata = 'mintingCollectionMetadata';
+    const collectionMax = null;
+    const collectionSymbol = 'MCS';
+    const recipientUri = null;
+    const royalty = null;
+    const nftMetadata = 'NFT-test-metadata';
+
+    const collectionId = await createCollection(
+      api,
+      alice,
+      collectionMetadata,
+      collectionMax,
+      collectionSymbol,
+    );
+
+    const tx = mintNft(
+      api,
+      bob,
+      owner,
+      collectionId,
+      nftMetadata,
+      recipientUri,
+      royalty,
+    );
+
+    await expectTxFailure(/rmrkCore\.NoPermission/, tx);
+  });
+
+  it('[negative] unable to fetch non-existing NFT', async () => {
+    const nft = await getNft(api, maxCollectionId, maxNftId);
+    expect(nft.isSome).to.be.false;
+  });
+
+  after(() => { api.disconnect(); });
+});
deletedtests/src/rmrk/mintNft.test.tsdiffbeforeafterboth
--- a/tests/src/rmrk/mintNft.test.ts
+++ /dev/null
@@ -1,212 +0,0 @@
-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 {createCollection, mintNft} from './util/tx';
-
-describe('integration test: mint new NFT', () => {
-  let api: any;
- 
-  before(async function () {
-    api = await getApiConnection();
-    await requirePallets(this, [Pallets.RmrkCore]);
-  });
-
-
-  const alice = '//Alice';
-  const bob = '//Bob';
-  const maxCollectionId = 0xFFFFFFFF;
-  const maxNftId = 0xFFFFFFFF;
-
-  it('mint NFT', async () => {
-    const owner = null;
-    const collectionMetadata = 'mintingCollectionMetadata';
-    const collectionMax = null;
-    const collectionSymbol = 'MCS';
-    const recipientUri = null;
-    const royalty = null;
-    const nftMetadata = 'NFT-test-metadata';
-
-    const collectionId = await createCollection(
-      api,
-      alice,
-      collectionMetadata,
-      collectionMax,
-      collectionSymbol,
-    );
-
-    await mintNft(
-      api,
-      alice,
-      owner,
-      collectionId,
-      nftMetadata,
-      recipientUri,
-      royalty,
-    );
-  });
-
-  it('mint NFT and set another owner', async () => {
-    const owner = bob;
-    const collectionMetadata = 'setOwnerCollectionMetadata';
-    const collectionMax = null;
-    const collectionSymbol = 'SOCS';
-    const recipientUri = null;
-    const royalty = null;
-    const nftMetadata = 'setOwner-NFT-metadata';
-
-    const collectionId = await createCollection(
-      api,
-      alice,
-      collectionMetadata,
-      collectionMax,
-      collectionSymbol,
-    );
-
-    await mintNft(
-      api,
-      alice,
-      owner,
-      collectionId,
-      nftMetadata,
-      recipientUri,
-      royalty,
-    );
-  });
-
-  it('mint NFT with recipient and roalty', async () => {
-    const owner = alice;
-    const collectionMetadata = 'mintingCollectionMetadata';
-    const collectionMax = null;
-    const collectionSymbol = 'MCS';
-    const recipientUri = bob;
-    const royalty = 70000;
-    const nftMetadata = 'recipient-royalty-NFT-test-metadata';
-
-    const collectionId = await createCollection(
-      api,
-      alice,
-      collectionMetadata,
-      collectionMax,
-      collectionSymbol,
-    );
-
-    await mintNft(
-      api,
-      alice,
-      owner,
-      collectionId,
-      nftMetadata,
-      recipientUri,
-      royalty,
-    );
-  });
-
-  it('mint NFT with resources', async () => {
-    const owner = alice;
-    const collectionMetadata = 'mintingCollectionMetadata';
-    const collectionMax = null;
-    const collectionSymbol = 'MCS';
-    const nftMetadata = 'NFT-with-resources-test-metadata';
-    const resources = [
-      {
-        basic: {
-          metadata: 'basic-resource-nft-minting',
-        },
-      }, {
-        slot: {
-          metadata: 'slot-resource-nft-minting',
-          slot: 9,
-        },
-      }, {
-        composable: {
-          metadata: 'composable-resource-nft-minting',
-          parts: [0, 5, 2],
-        },
-      }, {
-        slot: {
-          metadata: 'slot-resource-nft-minting-2',
-          thumb: 'srnm2',
-          base: 5,
-        },
-      },
-    ];
-
-    const collectionId = await createCollection(
-      api,
-      alice,
-      collectionMetadata,
-      collectionMax,
-      collectionSymbol,
-    );
-
-    await mintNft(
-      api,
-      alice,
-      owner,
-      collectionId,
-      nftMetadata,
-      null,
-      null,
-      true,
-      resources,
-    );
-  });
-
-  it('[negative] unable to mint NFT within non-existing collection', async () => {
-    const owner = alice;
-    const recipientUri = null;
-    const royalty = null;
-    const nftMetadata = 'NFT-test-metadata';
-
-    const tx = mintNft(
-      api,
-      alice,
-      owner,
-      maxCollectionId,
-      nftMetadata,
-      recipientUri,
-      royalty,
-    );
-
-    await expectTxFailure(/rmrkCore\.CollectionUnknown/, tx);
-  });
-
-  it("[negative] unable to mint NFT by a user that isn't the owner of the collection", async () => {
-    const owner = alice;
-    const collectionMetadata = 'mintingCollectionMetadata';
-    const collectionMax = null;
-    const collectionSymbol = 'MCS';
-    const recipientUri = null;
-    const royalty = null;
-    const nftMetadata = 'NFT-test-metadata';
-
-    const collectionId = await createCollection(
-      api,
-      alice,
-      collectionMetadata,
-      collectionMax,
-      collectionSymbol,
-    );
-
-    const tx = mintNft(
-      api,
-      bob,
-      owner,
-      collectionId,
-      nftMetadata,
-      recipientUri,
-      royalty,
-    );
-
-    await expectTxFailure(/rmrkCore\.NoPermission/, tx);
-  });
-
-  it('[negative] unable to fetch non-existing NFT', async () => {
-    const nft = await getNft(api, maxCollectionId, maxNftId);
-    expect(nft.isSome).to.be.false;
-  });
-
-  after(() => { api.disconnect(); });
-});
addedtests/src/rmrk/rejectNft.seqtest.tsdiffbeforeafterboth
--- /dev/null
+++ b/tests/src/rmrk/rejectNft.seqtest.ts
@@ -0,0 +1,95 @@
+import {expect} from 'chai';
+import {getApiConnection} from '../substrate/substrate-api';
+import {
+  createCollection,
+  mintNft,
+  sendNft,
+  rejectNft,
+} from './util/tx';
+import {NftIdTuple} from './util/fetch';
+import {isNftChildOfAnother, expectTxFailure} from './util/helpers';
+import {requirePallets, Pallets} from '../deprecated-helpers/helpers';
+
+describe('integration test: reject NFT', () => {
+  let api: any;
+  before(async function () {
+    api = await getApiConnection();
+    await requirePallets(this, [Pallets.RmrkCore]);
+  });
+
+
+
+  const alice = '//Alice';
+  const bob = '//Bob';
+
+  const createTestCollection = async (issuerUri: string) => {
+    return await createCollection(
+      api,
+      issuerUri,
+      'reject-metadata',
+      null,
+      'rjct',
+    );
+  };
+
+  it('reject NFT', async () => {
+    const ownerAlice = alice;
+    const ownerBob = bob;
+
+    const aliceCollectionId = await createTestCollection(alice);
+    const bobCollectionId = await createTestCollection(bob);
+
+    const parentNftId = await mintNft(api, alice, ownerAlice, aliceCollectionId, 'parent-nft-metadata');
+    const childNftId = await mintNft(api, bob, ownerBob, bobCollectionId, 'child-nft-metadata');
+
+    const newOwnerNFT: NftIdTuple = [aliceCollectionId, parentNftId];
+
+    await sendNft(api, 'pending', ownerBob, bobCollectionId, childNftId, newOwnerNFT);
+    await rejectNft(api, alice, bobCollectionId, childNftId);
+
+    const isChild = await isNftChildOfAnother(api, bobCollectionId, childNftId, newOwnerNFT);
+    expect(isChild, 'Error: rejected NFT is still a child of the target NFT').to.be.false;
+  });
+
+  it('[negative] unable to reject NFT by a not-an-owner', async () => {
+    const ownerAlice = alice;
+    const ownerBob = bob;
+
+    const aliceCollectionId = await createTestCollection(alice);
+    const bobCollectionId = await createTestCollection(bob);
+
+    const parentNftId = await mintNft(api, alice, ownerAlice, aliceCollectionId, 'parent-nft-metadata');
+    const childNftId = await mintNft(api, bob, ownerBob, bobCollectionId, 'child-nft-metadata');
+
+    const newOwnerNFT: NftIdTuple = [aliceCollectionId, parentNftId];
+
+    await sendNft(api, 'pending', ownerBob, bobCollectionId, childNftId, newOwnerNFT);
+    const tx = rejectNft(api, bob, bobCollectionId, childNftId);
+
+    await expectTxFailure(/rmrkCore\.CannotRejectNonOwnedNft/, tx);
+  });
+
+  it('[negative] unable to reject non-existing NFT', async () => {
+    const maxNftId = 0xFFFFFFFF;
+
+    const collectionId = await createTestCollection(alice);
+
+    const tx = rejectNft(api, alice, collectionId, maxNftId);
+
+    await expectTxFailure(/rmrkCore\.NoAvailableNftId/, tx);
+  });
+
+  it('[negative] unable to reject NFT which is not sent', async () => {
+    const ownerAlice = alice;
+
+    const collectionId = await createTestCollection(alice);
+
+    const nftId = await mintNft(api, alice, ownerAlice, collectionId, 'parent-nft-metadata');
+
+    const tx = rejectNft(api, alice, collectionId, nftId);
+
+    await expectTxFailure(/rmrkCore\.CannotRejectNonPendingNft/, tx);
+  });
+
+  after(() => { api.disconnect(); });
+});
deletedtests/src/rmrk/rejectNft.test.tsdiffbeforeafterboth

no changes

addedtests/src/rmrk/removeResource.seqtest.tsdiffbeforeafterboth
--- /dev/null
+++ b/tests/src/rmrk/removeResource.seqtest.ts
@@ -0,0 +1,343 @@
+import {getApiConnection} from '../substrate/substrate-api';
+import {requirePallets, Pallets} from '../deprecated-helpers/helpers';
+import {NftIdTuple} from './util/fetch';
+import {expectTxFailure} from './util/helpers';
+import {
+  acceptResourceRemoval, addNftBasicResource, createCollection, mintNft, removeNftResource, sendNft,
+} from './util/tx';
+
+
+
+
+describe('Integration test: remove nft resource', () => {
+  let api: any;
+  before(async function() {
+    api = await getApiConnection();
+    await requirePallets(this, [Pallets.RmrkCore]);
+  });
+
+  const alice = '//Alice';
+  const bob = '//Bob';
+  const src = 'test-basic-src';
+  const metadata = 'test-basic-metadata';
+  const license = 'test-basic-license';
+  const thumb = 'test-basic-thumb';
+
+  it('deleting a resource directly by the NFT owner', async () => {
+    const collectionIdAlice = await createCollection(
+      api,
+      alice,
+      'test-metadata',
+      null,
+      'test-symbol',
+    );
+
+    const nftAlice = await mintNft(
+      api,
+      alice,
+      alice,
+      collectionIdAlice,
+      'nft-metadata',
+    );
+
+    const resourceId = await addNftBasicResource(
+      api,
+      alice,
+      'added',
+      collectionIdAlice,
+      nftAlice,
+      src,
+      metadata,
+      license,
+      thumb,
+    );
+
+    await removeNftResource(api, 'removed', alice, collectionIdAlice, nftAlice, resourceId);
+  });
+
+  it('deleting resources indirectly by the NFT owner', async () => {
+    const collectionIdAlice = await createCollection(
+      api,
+      alice,
+      'test-metadata',
+      null,
+      'test-symbol',
+    );
+
+    const parentNftId = await mintNft(api, alice, alice, collectionIdAlice, 'parent-nft-metadata');
+    const childNftId = await mintNft(api, alice, alice, collectionIdAlice, 'child-nft-metadata');
+
+    const resourceId = await addNftBasicResource(
+      api,
+      alice,
+      'added',
+      collectionIdAlice,
+      childNftId,
+      src,
+      metadata,
+      license,
+      thumb,
+    );
+
+    const newOwnerNFT: NftIdTuple = [collectionIdAlice, parentNftId];
+
+    await sendNft(api, 'sent', alice, collectionIdAlice, childNftId, newOwnerNFT);
+
+    await removeNftResource(api, 'removed', alice, collectionIdAlice, childNftId, resourceId);
+  });
+
+  it('deleting a resource by the collection owner', async () => {
+    const collectionIdAlice = await createCollection(
+      api,
+      alice,
+      'test-metadata',
+      null,
+      'test-symbol',
+    );
+
+    const nftBob = await mintNft(
+      api,
+      alice,
+      bob,
+      collectionIdAlice,
+      'nft-metadata',
+    );
+
+    const resourceId = await addNftBasicResource(
+      api,
+      alice,
+      'pending',
+      collectionIdAlice,
+      nftBob,
+      src,
+      metadata,
+      license,
+      thumb,
+    );
+
+    await removeNftResource(api, 'pending', alice, collectionIdAlice, nftBob, resourceId);
+    await acceptResourceRemoval(api, bob, collectionIdAlice, nftBob, resourceId);
+  });
+
+  it('deleting a resource in a nested NFT by the collection owner', async () => {
+    const collectionIdAlice = await createCollection(
+      api,
+      alice,
+      'test-metadata',
+      null,
+      'test-symbol',
+    );
+
+    const parentNftId = await mintNft(
+      api,
+      alice,
+      bob,
+      collectionIdAlice,
+      'parent-nft-metadata',
+    );
+    const childNftId = await mintNft(
+      api,
+      alice,
+      bob,
+      collectionIdAlice,
+      'child-nft-metadata',
+    );
+
+    const resourceId = await addNftBasicResource(
+      api,
+      alice,
+      'pending',
+      collectionIdAlice,
+      childNftId,
+      src,
+      metadata,
+      license,
+      thumb,
+    );
+
+    const newOwnerNFT: NftIdTuple = [collectionIdAlice, parentNftId];
+
+    await sendNft(api, 'sent', bob, collectionIdAlice, childNftId, newOwnerNFT);
+
+    await removeNftResource(api, 'pending', alice, collectionIdAlice, childNftId, resourceId);
+    await acceptResourceRemoval(api, bob, collectionIdAlice, childNftId, resourceId);
+  });
+
+  it('[negative]: can\'t delete a resource in a non-existing collection', async () => {
+    const collectionIdAlice = await createCollection(
+      api,
+      alice,
+      'test-metadata',
+      null,
+      'test-symbol',
+    );
+
+    const nftAlice = await mintNft(
+      api,
+      alice,
+      alice,
+      collectionIdAlice,
+      'nft-metadata',
+    );
+
+    const resourceId = await addNftBasicResource(
+      api,
+      alice,
+      'added',
+      collectionIdAlice,
+      nftAlice,
+      src,
+      metadata,
+      license,
+      thumb,
+    );
+
+    const tx = removeNftResource(api, 'removed', alice, 0xFFFFFFFF, nftAlice, resourceId);
+    await expectTxFailure(/rmrkCore\.CollectionUnknown/, tx); // FIXME: inappropriate error message (NoAvailableNftId)
+  });
+
+  it('[negative]: only collection owner can delete a resource', async () => {
+    const collectionIdAlice = await createCollection(
+      api,
+      alice,
+      'test-metadata',
+      null,
+      'test-symbol',
+    );
+
+    const nftAlice = await mintNft(
+      api,
+      alice,
+      alice,
+      collectionIdAlice,
+      'nft-metadata',
+    );
+
+    const resourceId = await addNftBasicResource(
+      api,
+      alice,
+      'added',
+      collectionIdAlice,
+      nftAlice,
+      src,
+      metadata,
+      license,
+      thumb,
+    );
+
+    const tx = removeNftResource(api, 'removed', bob, collectionIdAlice, nftAlice, resourceId);
+    await expectTxFailure(/rmrkCore\.NoPermission/, tx);
+  });
+
+  it('[negative]: cannot delete a resource that does not exist', async () => {
+    const collectionIdAlice = await createCollection(
+      api,
+      alice,
+      'test-metadata',
+      null,
+      'test-symbol',
+    );
+
+    const nftAlice = await mintNft(
+      api,
+      alice,
+      alice,
+      collectionIdAlice,
+      'nft-metadata',
+    );
+
+    const tx = removeNftResource(api, 'removed', alice, collectionIdAlice, nftAlice, 127);
+    await expectTxFailure(/rmrkCore\.ResourceDoesntExist/, tx);
+  });
+
+  it('[negative]: Cannot accept deleting resource without owner attempt do delete it', async () => {
+    const collectionIdAlice = await createCollection(
+      api,
+      alice,
+      'test-metadata',
+      null,
+      'test-symbol',
+    );
+
+    const nftBob = await mintNft(
+      api,
+      alice,
+      bob,
+      collectionIdAlice,
+      'nft-metadata',
+    );
+
+    const resourceId = await addNftBasicResource(
+      api,
+      alice,
+      'pending',
+      collectionIdAlice,
+      nftBob,
+      src,
+      metadata,
+      license,
+      thumb,
+    );
+
+    const tx = acceptResourceRemoval(api, bob, collectionIdAlice, nftBob, resourceId);
+    await expectTxFailure(/rmrkCore\.ResourceNotPending/, tx);
+  });
+
+  it('[negative]: cannot confirm the deletion of a non-existing resource', async () => {
+    const collectionIdAlice = await createCollection(
+      api,
+      alice,
+      'test-metadata',
+      null,
+      'test-symbol',
+    );
+
+    const nftBob = await mintNft(
+      api,
+      alice,
+      bob,
+      collectionIdAlice,
+      'nft-metadata',
+    );
+
+    const tx = acceptResourceRemoval(api, bob, collectionIdAlice, nftBob, 127);
+    await expectTxFailure(/rmrkCore\.ResourceDoesntExist/, tx);
+  });
+
+  it('[negative]: Non-owner user cannot confirm the deletion of resource', async () => {
+    const collectionIdAlice = await createCollection(
+      api,
+      alice,
+      'test-metadata',
+      null,
+      'test-symbol',
+    );
+
+    const nftAlice = await mintNft(
+      api,
+      alice,
+      alice,
+      collectionIdAlice,
+      'nft-metadata',
+    );
+
+    const resourceId = await addNftBasicResource(
+      api,
+      alice,
+      'added',
+      collectionIdAlice,
+      nftAlice,
+      src,
+      metadata,
+      license,
+      thumb,
+    );
+
+    const tx = acceptResourceRemoval(api, bob, collectionIdAlice, nftAlice, resourceId);
+    await expectTxFailure(/rmrkCore\.NoPermission/, tx);
+  });
+
+  after(() => {
+    api.disconnect();
+  });
+});
deletedtests/src/rmrk/removeResource.test.tsdiffbeforeafterboth
--- a/tests/src/rmrk/removeResource.test.ts
+++ /dev/null
@@ -1,350 +0,0 @@
-import {expect} from 'chai';
-import privateKey from '../substrate/privateKey';
-import {executeTransaction, getApiConnection} from '../substrate/substrate-api';
-import {requirePallets, Pallets} from '../deprecated-helpers/helpers';
-import {getNft, NftIdTuple} from './util/fetch';
-import {expectTxFailure} from './util/helpers';
-import {
-  acceptNft, acceptResourceRemoval, addNftBasicResource,
-  createBase,
-  createCollection,
-  mintNft, removeNftResource, sendNft,
-} from './util/tx';
-
-
-
-
-describe('Integration test: remove nft resource', () => {
-  let api: any;
-  let ss58Format: string;
-  before(async function() {
-    api = await getApiConnection();
-    ss58Format = api.registry.getChainProperties()!.toJSON().ss58Format;
-    await requirePallets(this, [Pallets.RmrkCore]);
-  });
-
-  const Alice = '//Alice';
-  const Bob = '//Bob';
-  const src = 'test-basic-src';
-  const metadata = 'test-basic-metadata';
-  const license = 'test-basic-license';
-  const thumb = 'test-basic-thumb';
-
-  it('deleting a resource directly by the NFT owner', async () => {
-    const collectionIdAlice = await createCollection(
-      api,
-      Alice,
-      'test-metadata',
-      null,
-      'test-symbol',
-    );
-
-    const nftAlice = await mintNft(
-      api,
-      Alice,
-      Alice,
-      collectionIdAlice,
-      'nft-metadata',
-    );
-
-    const resourceId = await addNftBasicResource(
-      api,
-      Alice,
-      'added',
-      collectionIdAlice,
-      nftAlice,
-      src,
-      metadata,
-      license,
-      thumb,
-    );
-
-    await removeNftResource(api, 'removed', Alice, collectionIdAlice, nftAlice, resourceId);
-  });
-
-  it('deleting resources indirectly by the NFT owner', async () => {
-    const collectionIdAlice = await createCollection(
-      api,
-      Alice,
-      'test-metadata',
-      null,
-      'test-symbol',
-    );
-
-    const parentNftId = await mintNft(api, Alice, Alice, collectionIdAlice, 'parent-nft-metadata');
-    const childNftId = await mintNft(api, Alice, Alice, collectionIdAlice, 'child-nft-metadata');
-
-    const resourceId = await addNftBasicResource(
-      api,
-      Alice,
-      'added',
-      collectionIdAlice,
-      childNftId,
-      src,
-      metadata,
-      license,
-      thumb,
-    );
-
-    const newOwnerNFT: NftIdTuple = [collectionIdAlice, parentNftId];
-
-    await sendNft(api, 'sent', Alice, collectionIdAlice, childNftId, newOwnerNFT);
-
-    await removeNftResource(api, 'removed', Alice, collectionIdAlice, childNftId, resourceId);
-  });
-
-  it('deleting a resource by the collection owner', async () => {
-    const collectionIdAlice = await createCollection(
-      api,
-      Alice,
-      'test-metadata',
-      null,
-      'test-symbol',
-    );
-
-    const nftBob = await mintNft(
-      api,
-      Alice,
-      Bob,
-      collectionIdAlice,
-      'nft-metadata',
-    );
-
-    const resourceId = await addNftBasicResource(
-      api,
-      Alice,
-      'pending',
-      collectionIdAlice,
-      nftBob,
-      src,
-      metadata,
-      license,
-      thumb,
-    );
-
-    await removeNftResource(api, 'pending', Alice, collectionIdAlice, nftBob, resourceId);
-    await acceptResourceRemoval(api, Bob, collectionIdAlice, nftBob, resourceId);
-  });
-
-  it('deleting a resource in a nested NFT by the collection owner', async () => {
-    const collectionIdAlice = await createCollection(
-      api,
-      Alice,
-      'test-metadata',
-      null,
-      'test-symbol',
-    );
-
-    const parentNftId = await mintNft(
-      api,
-      Alice,
-      Bob,
-      collectionIdAlice,
-      'parent-nft-metadata',
-    );
-    const childNftId = await mintNft(
-      api,
-      Alice,
-      Bob,
-      collectionIdAlice,
-      'child-nft-metadata',
-    );
-
-    const resourceId = await addNftBasicResource(
-      api,
-      Alice,
-      'pending',
-      collectionIdAlice,
-      childNftId,
-      src,
-      metadata,
-      license,
-      thumb,
-    );
-
-    const newOwnerNFT: NftIdTuple = [collectionIdAlice, parentNftId];
-
-    await sendNft(api, 'sent', Bob, collectionIdAlice, childNftId, newOwnerNFT);
-
-    await removeNftResource(api, 'pending', Alice, collectionIdAlice, childNftId, resourceId);
-    await acceptResourceRemoval(api, Bob, collectionIdAlice, childNftId, resourceId);
-  });
-
-  it('[negative]: can\'t delete a resource in a non-existing collection', async () => {
-    const collectionIdAlice = await createCollection(
-      api,
-      Alice,
-      'test-metadata',
-      null,
-      'test-symbol',
-    );
-
-    const nftAlice = await mintNft(
-      api,
-      Alice,
-      Alice,
-      collectionIdAlice,
-      'nft-metadata',
-    );
-
-    const resourceId = await addNftBasicResource(
-      api,
-      Alice,
-      'added',
-      collectionIdAlice,
-      nftAlice,
-      src,
-      metadata,
-      license,
-      thumb,
-    );
-
-    const tx = removeNftResource(api, 'removed', Alice, 0xFFFFFFFF, nftAlice, resourceId);
-    await expectTxFailure(/rmrkCore\.CollectionUnknown/, tx); // FIXME: inappropriate error message (NoAvailableNftId)
-  });
-
-  it('[negative]: only collection owner can delete a resource', async () => {
-    const collectionIdAlice = await createCollection(
-      api,
-      Alice,
-      'test-metadata',
-      null,
-      'test-symbol',
-    );
-
-    const nftAlice = await mintNft(
-      api,
-      Alice,
-      Alice,
-      collectionIdAlice,
-      'nft-metadata',
-    );
-
-    const resourceId = await addNftBasicResource(
-      api,
-      Alice,
-      'added',
-      collectionIdAlice,
-      nftAlice,
-      src,
-      metadata,
-      license,
-      thumb,
-    );
-
-    const tx = removeNftResource(api, 'removed', Bob, collectionIdAlice, nftAlice, resourceId);
-    await expectTxFailure(/rmrkCore\.NoPermission/, tx);
-  });
-
-  it('[negative]: cannot delete a resource that does not exist', async () => {
-    const collectionIdAlice = await createCollection(
-      api,
-      Alice,
-      'test-metadata',
-      null,
-      'test-symbol',
-    );
-
-    const nftAlice = await mintNft(
-      api,
-      Alice,
-      Alice,
-      collectionIdAlice,
-      'nft-metadata',
-    );
-
-    const tx = removeNftResource(api, 'removed', Alice, collectionIdAlice, nftAlice, 127);
-    await expectTxFailure(/rmrkCore\.ResourceDoesntExist/, tx);
-  });
-
-  it('[negative]: Cannot accept deleting resource without owner attempt do delete it', async () => {
-    const collectionIdAlice = await createCollection(
-      api,
-      Alice,
-      'test-metadata',
-      null,
-      'test-symbol',
-    );
-
-    const nftBob = await mintNft(
-      api,
-      Alice,
-      Bob,
-      collectionIdAlice,
-      'nft-metadata',
-    );
-
-    const resourceId = await addNftBasicResource(
-      api,
-      Alice,
-      'pending',
-      collectionIdAlice,
-      nftBob,
-      src,
-      metadata,
-      license,
-      thumb,
-    );
-
-    const tx = acceptResourceRemoval(api, Bob, collectionIdAlice, nftBob, resourceId);
-    await expectTxFailure(/rmrkCore\.ResourceNotPending/, tx);
-  });
-
-  it('[negative]: cannot confirm the deletion of a non-existing resource', async () => {
-    const collectionIdAlice = await createCollection(
-      api,
-      Alice,
-      'test-metadata',
-      null,
-      'test-symbol',
-    );
-
-    const nftBob = await mintNft(
-      api,
-      Alice,
-      Bob,
-      collectionIdAlice,
-      'nft-metadata',
-    );
-
-    const tx = acceptResourceRemoval(api, Bob, collectionIdAlice, nftBob, 127);
-    await expectTxFailure(/rmrkCore\.ResourceDoesntExist/, tx);
-  });
-
-  it('[negative]: Non-owner user cannot confirm the deletion of resource', async () => {
-    const collectionIdAlice = await createCollection(
-      api,
-      Alice,
-      'test-metadata',
-      null,
-      'test-symbol',
-    );
-
-    const nftAlice = await mintNft(
-      api,
-      Alice,
-      Alice,
-      collectionIdAlice,
-      'nft-metadata',
-    );
-
-    const resourceId = await addNftBasicResource(
-      api,
-      Alice,
-      'added',
-      collectionIdAlice,
-      nftAlice,
-      src,
-      metadata,
-      license,
-      thumb,
-    );
-
-    const tx = acceptResourceRemoval(api, Bob, collectionIdAlice, nftAlice, resourceId);
-    await expectTxFailure(/rmrkCore\.NoPermission/, tx);
-  });
-
-  after(() => {
-    api.disconnect();
-  });
-});
addedtests/src/rmrk/rmrkIsolation.seqtest.tsdiffbeforeafterboth
--- /dev/null
+++ b/tests/src/rmrk/rmrkIsolation.seqtest.ts
@@ -0,0 +1,251 @@
+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 {IKeyringPair} from '@polkadot/types/types';
+import {ApiPromise} from '@polkadot/api';
+import {it} from 'mocha';
+
+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);
+
+  const uniqueResult = getCreateCollectionResult(events);
+  const rmrkResult = getGenericResult(events, 'rmrkCore', 'CollectionCreated', (data) => {
+    return parseInt(data[1].toString(), 10);
+  });
+
+  return {
+    uniqueId: uniqueResult.collectionId,
+    rmrkId: rmrkResult.data!,
+  };
+}
+
+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',
+    true,
+    null,
+  );
+  const events = await executeTransaction(api, sender, tx);
+  const result = getGenericResult(events, 'rmrkCore', 'NftMinted', (data) => {
+    return parseInt(data[2].toString(), 10);
+  });
+
+  return result.data!;
+}
+
+async function isUnique(): Promise<boolean> {
+  return usingApi(async api => {
+    const chain = await api.rpc.system.chain();
+
+    return chain.eq('UNIQUE');
+  });
+}
+
+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]);
+    });
+  });
+
+  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();
+
+      const collectionIds = await createRmrkCollection(api, alice);
+
+      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;
+    });
+  });
+});
+
+describe('Negative Integration Test: External Collections, Internal Ops', async () => {
+  let uniqueCollectionId: number;
+  let rmrkCollectionId: number;
+  let rmrkNftId: number;
+
+  const itRmrk = (await isUnique() ? it : it.skip);
+
+  before(async () => {
+    await usingApi(async (api, privateKeyWrapper) => {
+      alice = privateKeyWrapper('//Alice');
+      bob = privateKeyWrapper('//Bob');
+
+      const collectionIds = await createRmrkCollection(api, alice);
+      uniqueCollectionId = collectionIds.uniqueId;
+      rmrkCollectionId = collectionIds.rmrkId;
+
+      rmrkNftId = await createRmrkNft(api, alice, rmrkCollectionId);
+    });
+  });
+
+  itRmrk('[Negative] Forbids Unique operations with an external collection, handled by dispatch_call', async () => {
+    await usingApi(async api => {
+      // 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/);
+
+      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 txCreateMultipleItemsEx = api.tx.unique.createMultipleItemsEx(uniqueCollectionId, {NFT: [{}]});
+      await expect(executeTransaction(api, alice, txCreateMultipleItemsEx), 'creating multiple ex')
+        .to.be.rejectedWith(/common\.CollectionIsExternal/);
+
+      // Collection properties
+
+      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/);
+
+      const txDeleteCollectionProperties = api.tx.unique.deleteCollectionProperties(uniqueCollectionId, ['a']);
+      await expect(executeTransaction(api, alice, txDeleteCollectionProperties), 'deleting collection properties')
+        .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
+
+      const txBurn = api.tx.unique.burnItem(uniqueCollectionId, rmrkNftId, 1);
+      await expect(executeTransaction(api, alice, txBurn), 'burning').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/);
+
+      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/);
+
+      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/);
+
+      // 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/);
+
+      const txDeleteTokenProperties = api.tx.unique.deleteTokenProperties(uniqueCollectionId, rmrkNftId, ['a']);
+      await expect(executeTransaction(api, alice, txDeleteTokenProperties), 'deleting token properties')
+        .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/);
+
+      // 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/);
+
+      const txRemoveAllowList = api.tx.unique.removeFromAllowList(uniqueCollectionId, normalizeAccountId(bob));
+      await expect(executeTransaction(api, alice, txRemoveAllowList), 'removing from allowlist')
+        .to.be.rejectedWith(/common\.CollectionIsExternal/);
+
+      // 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/);
+
+      const txAddAdmin = api.tx.unique.addCollectionAdmin(uniqueCollectionId, normalizeAccountId(bob));
+      await expect(executeTransaction(api, alice, txAddAdmin), '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/);
+
+      const txAddCollectionSponsor = api.tx.unique.setCollectionSponsor(uniqueCollectionId, bob.address);
+      await expect(executeTransaction(api, alice, txAddCollectionSponsor), '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/);
+
+      const txRemoveCollectionSponsor = api.tx.unique.removeCollectionSponsor(uniqueCollectionId);
+      await expect(executeTransaction(api, alice, txRemoveCollectionSponsor), '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 txSetLimits = api.tx.unique.setCollectionLimits(uniqueCollectionId, {transfersEnabled: false});
+      await expect(executeTransaction(api, alice, txSetLimits), '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/);
+    });
+  });
+});
+
+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');
+
+      collectionId = await createCollectionExpectSuccess({mode: {type: 'NFT'}});
+      nftId = await createItemExpectSuccess(alice, collectionId, 'NFT');
+    });
+  });
+
+  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/);
+
+      const maxBurns = 10;
+      const txBurnItem = api.tx.rmrkCore.burnNft(collectionId, nftId, maxBurns);
+      await expect(executeTransaction(api, alice, txBurnItem), 'burning NFT').to.be.rejectedWith(/rmrkCore\.CollectionUnknown/);
+    });
+  });
+});
deletedtests/src/rmrk/rmrkIsolation.test.tsdiffbeforeafterboth
--- a/tests/src/rmrk/rmrkIsolation.test.ts
+++ /dev/null
@@ -1,251 +0,0 @@
-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 {IKeyringPair} from '@polkadot/types/types';
-import {ApiPromise} from '@polkadot/api';
-import {it} from 'mocha';
-
-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);
-
-  const uniqueResult = getCreateCollectionResult(events);
-  const rmrkResult = getGenericResult(events, 'rmrkCore', 'CollectionCreated', (data) => {
-    return parseInt(data[1].toString(), 10);
-  });
-
-  return {
-    uniqueId: uniqueResult.collectionId,
-    rmrkId: rmrkResult.data!,
-  };
-}
-
-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',
-    true,
-    null,
-  );
-  const events = await executeTransaction(api, sender, tx);
-  const result = getGenericResult(events, 'rmrkCore', 'NftMinted', (data) => {
-    return parseInt(data[2].toString(), 10);
-  });
-
-  return result.data!;
-}
-
-async function isUnique(): Promise<boolean> {
-  return usingApi(async api => {
-    const chain = await api.rpc.system.chain();
-
-    return chain.eq('UNIQUE');
-  });
-}
-
-describe('RMRK External Integration Test', async () => {
-  const it_rmrk = (await isUnique() ? it : it.skip);
-
-  before(async function() {
-    await usingApi(async (api, privateKeyWrapper) => {
-      alice = privateKeyWrapper('//Alice');
-      await requirePallets(this, [Pallets.RmrkCore]);
-    });
-  });
-
-  it_rmrk('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();
-
-      const collectionIds = await createRmrkCollection(api, alice);
-
-      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;
-    });
-  });
-});
-
-describe('Negative Integration Test: External Collections, Internal Ops', async () => {
-  let uniqueCollectionId: number;
-  let rmrkCollectionId: number;
-  let rmrkNftId: number;
-
-  const it_rmrk = (await isUnique() ? it : it.skip);
-
-  before(async () => {
-    await usingApi(async (api, privateKeyWrapper) => {
-      alice = privateKeyWrapper('//Alice');
-      bob = privateKeyWrapper('//Bob');
-
-      const collectionIds = await createRmrkCollection(api, alice);
-      uniqueCollectionId = collectionIds.uniqueId;
-      rmrkCollectionId = collectionIds.rmrkId;
-
-      rmrkNftId = await createRmrkNft(api, alice, rmrkCollectionId);
-    });
-  });
-
-  it_rmrk('[Negative] Forbids Unique operations with an external collection, handled by dispatch_call', async () => {
-    await usingApi(async api => {
-      // 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/);
-
-      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 txCreateMultipleItemsEx = api.tx.unique.createMultipleItemsEx(uniqueCollectionId, {NFT: [{}]});
-      await expect(executeTransaction(api, alice, txCreateMultipleItemsEx), 'creating multiple ex')
-        .to.be.rejectedWith(/common\.CollectionIsExternal/);
-
-      // Collection properties
-
-      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/);
-
-      const txDeleteCollectionProperties = api.tx.unique.deleteCollectionProperties(uniqueCollectionId, ['a']);
-      await expect(executeTransaction(api, alice, txDeleteCollectionProperties), 'deleting collection properties')
-        .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
-
-      const txBurn = api.tx.unique.burnItem(uniqueCollectionId, rmrkNftId, 1);
-      await expect(executeTransaction(api, alice, txBurn), 'burning').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/);
-
-      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/);
-
-      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/);
-
-      // 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/);
-
-      const txDeleteTokenProperties = api.tx.unique.deleteTokenProperties(uniqueCollectionId, rmrkNftId, ['a']);
-      await expect(executeTransaction(api, alice, txDeleteTokenProperties), 'deleting token properties')
-        .to.be.rejectedWith(/common\.CollectionIsExternal/);
-    });
-  });
-
-  it_rmrk('[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/);
-
-      // 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/);
-
-      const txRemoveAllowList = api.tx.unique.removeFromAllowList(uniqueCollectionId, normalizeAccountId(bob));
-      await expect(executeTransaction(api, alice, txRemoveAllowList), 'removing from allowlist')
-        .to.be.rejectedWith(/common\.CollectionIsExternal/);
-
-      // 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/);
-
-      const txAddAdmin = api.tx.unique.addCollectionAdmin(uniqueCollectionId, normalizeAccountId(bob));
-      await expect(executeTransaction(api, alice, txAddAdmin), '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/);
-
-      const txAddCollectionSponsor = api.tx.unique.setCollectionSponsor(uniqueCollectionId, bob.address);
-      await expect(executeTransaction(api, alice, txAddCollectionSponsor), '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/);
-
-      const txRemoveCollectionSponsor = api.tx.unique.removeCollectionSponsor(uniqueCollectionId);
-      await expect(executeTransaction(api, alice, txRemoveCollectionSponsor), '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 txSetLimits = api.tx.unique.setCollectionLimits(uniqueCollectionId, {transfersEnabled: false});
-      await expect(executeTransaction(api, alice, txSetLimits), '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/);
-    });
-  });
-});
-
-describe('Negative Integration Test: Internal Collections, External Ops', async () => {
-  let collectionId: number;
-  let nftId: number;
-
-  const it_rmrk = (await isUnique() ? it : it.skip);
-
-  before(async () => {
-    await usingApi(async (api, privateKeyWrapper) => {
-      alice = privateKeyWrapper('//Alice');
-      bob = privateKeyWrapper('//Bob');
-
-      collectionId = await createCollectionExpectSuccess({mode: {type: 'NFT'}});
-      nftId = await createItemExpectSuccess(alice, collectionId, 'NFT');
-    });
-  });
-
-  it_rmrk('[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/);
-
-      const maxBurns = 10;
-      const txBurnItem = api.tx.rmrkCore.burnNft(collectionId, nftId, maxBurns);
-      await expect(executeTransaction(api, alice, txBurnItem), 'burning NFT').to.be.rejectedWith(/rmrkCore\.CollectionUnknown/);
-    });
-  });
-});
addedtests/src/rmrk/sendNft.seqtest.tsdiffbeforeafterboth
--- /dev/null
+++ b/tests/src/rmrk/sendNft.seqtest.ts
@@ -0,0 +1,256 @@
+import {expect} from 'chai';
+import {getApiConnection} from '../substrate/substrate-api';
+import {createCollection, mintNft, sendNft} from './util/tx';
+import {NftIdTuple} from './util/fetch';
+import {isNftChildOfAnother, expectTxFailure} from './util/helpers';
+import {requirePallets, Pallets} from '../deprecated-helpers/helpers';
+
+describe('integration test: send NFT', () => {
+  let api: any;
+  before(async function () {
+    api = await getApiConnection();
+    await requirePallets(this, [Pallets.RmrkCore]);
+  });
+
+  const maxNftId = 0xFFFFFFFF;
+
+  const alice = '//Alice';
+  const bob = '//Bob';
+
+  const createTestCollection = async (issuerUri: string) => {
+    return await createCollection(
+      api,
+      issuerUri,
+      'nft-collection-metadata',
+      null,
+      'nft-collection',
+    );
+  };
+
+
+  it('send NFT to another user', async () => {
+    const originalOwnerUri = alice;
+    const newOwnerUri = bob;
+
+    const collectionId = await createTestCollection(alice);
+
+    const nftId = await mintNft(api, alice, originalOwnerUri, collectionId, 'nft-metadata');
+
+    await sendNft(api, 'sent', originalOwnerUri, collectionId, nftId, newOwnerUri);
+  });
+
+  it('[negative] unable to send non-existing NFT', async () => {
+    const originalOwnerUri = alice;
+    const newOwnerUri = bob;
+
+    const collectionId = 0;
+    const tx = sendNft(api, 'sent', originalOwnerUri, collectionId, maxNftId, newOwnerUri);
+
+    await expectTxFailure(/rmrkCore\.NoAvailableNftId/, tx);
+  });
+
+  it('[negative] unable to send NFT by a not-an-owner', async () => {
+    const originalOwnerUri = alice;
+    const newOwnerUri = bob;
+
+    const collectionId = await createTestCollection(alice);
+
+    const nftId = await mintNft(api, alice, originalOwnerUri, collectionId, 'nft-metadata');
+
+    const tx = sendNft(api, 'sent', newOwnerUri, collectionId, nftId, newOwnerUri);
+    await expectTxFailure(/rmrkCore\.NoPermission/, tx);
+  });
+
+  it('send NFT to another NFT (same owner)', async () => {
+    const originalOwnerUri = alice;
+
+    const collectionId = await createTestCollection(alice);
+
+    const parentNftId = await mintNft(api, alice, originalOwnerUri, collectionId, 'parent-nft-metadata');
+    const childNftId = await mintNft(api, alice, originalOwnerUri, collectionId, 'child-nft-metadata');
+
+    const newOwnerNFT: NftIdTuple = [collectionId, parentNftId];
+
+    await sendNft(api, 'sent', alice, collectionId, childNftId, newOwnerNFT);
+
+    const isChild = await isNftChildOfAnother(api, collectionId, childNftId, newOwnerNFT);
+    expect(isChild).to.be.true;
+  });
+
+  it('[negative] send non-existing NFT to another NFT', async () => {
+    const originalOwnerUri = alice;
+
+    const collectionId = await createTestCollection(alice);
+
+    const parentNftId = await mintNft(api, alice, originalOwnerUri, collectionId, 'parent-nft-metadata');
+    const childNftId = maxNftId;
+
+    const newOwnerNFT: NftIdTuple = [collectionId, parentNftId];
+
+    const tx = sendNft(api, 'sent', alice, collectionId, childNftId, newOwnerNFT);
+
+    await expectTxFailure(/rmrkCore\.NoAvailableNftId/, tx);
+
+    const isChild = await isNftChildOfAnother(api, collectionId, childNftId, newOwnerNFT);
+    expect(isChild).to.be.false;
+  });
+
+  it('send NFT to another NFT (by not-an-owner)', async () => {
+    const originalOwnerUri = alice;
+
+    const collectionId = await createTestCollection(alice);
+
+    const author = alice;
+    const attacker = bob;
+
+    const parentNftId = await mintNft(api, author, originalOwnerUri, collectionId, 'parent-nft-metadata');
+    const childNftId = await mintNft(api, author, originalOwnerUri, collectionId, 'child-nft-metadata');
+
+    const newOwnerNFT: NftIdTuple = [collectionId, parentNftId];
+
+    const tx = sendNft(api, 'sent', attacker, collectionId, childNftId, newOwnerNFT);
+
+    await expectTxFailure(/rmrkCore\.NoPermission/, tx);
+
+    const isChild = await isNftChildOfAnother(api, collectionId, childNftId, newOwnerNFT);
+    expect(isChild).to.be.false;
+  });
+
+  it('[negative] send NFT to non-existing NFT', async () => {
+    const originalOwnerUri = alice;
+
+    const collectionId = await createTestCollection(alice);
+
+    const parentNftId = maxNftId;
+    const childNftId = await mintNft(api, alice, originalOwnerUri, collectionId, 'child-nft-metadata');
+
+    const newOwnerNFT: NftIdTuple = [collectionId, parentNftId];
+
+    const tx = sendNft(api, 'sent', alice, collectionId, childNftId, newOwnerNFT);
+
+    await expectTxFailure(/rmrkCore\.NoAvailableNftId/, tx);
+
+    const isChild = await isNftChildOfAnother(api, collectionId, childNftId, newOwnerNFT);
+    expect(isChild).to.be.false;
+  });
+
+  it('send NFT to another NFT owned by another user', async () => {
+    const ownerAlice = alice;
+    const ownerBob = bob;
+
+    const aliceCollectionId = await createTestCollection(alice);
+    const bobCollectionId = await createTestCollection(bob);
+
+    const parentNftId = await mintNft(api, alice, ownerAlice, aliceCollectionId, 'parent-nft-metadata');
+    const childNftId = await mintNft(api, bob, ownerBob, bobCollectionId, 'child-nft-metadata');
+
+    const newOwnerNFT: NftIdTuple = [aliceCollectionId, parentNftId];
+
+    await sendNft(api, 'pending', bob, bobCollectionId, childNftId, newOwnerNFT);
+  });
+
+  it('[negative] unable to send NFT to itself', async () => {
+    const nftOwner = alice;
+    const collectionId = await createTestCollection(alice);
+
+    const nftId = await mintNft(api, alice, nftOwner, collectionId, 'ouroboros-nft-metadata');
+
+    const newOwnerNFT: NftIdTuple = [collectionId, nftId];
+
+    const tx = sendNft(api, 'sent', alice, collectionId, nftId, newOwnerNFT);
+
+    await expectTxFailure(/rmrkCore\.CannotSendToDescendentOrSelf/, tx);
+
+    const isChild = await isNftChildOfAnother(api, collectionId, nftId, newOwnerNFT);
+    expect(isChild).to.be.false;
+  });
+
+  it('[negative] unable to send NFT to child NFT', async () => {
+    const originalOwnerUri = alice;
+
+    const collectionId = await createTestCollection(alice);
+
+    const parentNftId = await mintNft(api, alice, originalOwnerUri, collectionId, 'parent-nft-metadata');
+    const childNftId = await mintNft(api, alice, originalOwnerUri, collectionId, 'child-nft-metadata');
+
+    const newOwnerNFT: NftIdTuple = [collectionId, parentNftId];
+
+    await sendNft(api, 'sent', alice, collectionId, childNftId, newOwnerNFT);
+
+    const isChild = await isNftChildOfAnother(api, collectionId, childNftId, newOwnerNFT);
+    expect(isChild).to.be.true;
+
+    const descendentOwner: NftIdTuple = [collectionId, childNftId];
+    const tx = sendNft(api, 'sent', alice, collectionId, parentNftId, descendentOwner);
+
+    await expectTxFailure(/rmrkCore\.CannotSendToDescendentOrSelf/, tx);
+    const isOuroboros = await isNftChildOfAnother(api, collectionId, parentNftId, descendentOwner);
+    expect(isOuroboros).to.be.false;
+  });
+
+  it('[negative] unable to send NFT to descendent NFT', async () => {
+    const originalOwnerUri = alice;
+
+    const collectionId = await createTestCollection(alice);
+
+    const parentNftId = await mintNft(api, alice, originalOwnerUri, collectionId, 'parent-nft-metadata');
+    const childNftId = await mintNft(api, alice, originalOwnerUri, collectionId, 'child-nft-metadata');
+    const grandsonNftId = await mintNft(api, alice, originalOwnerUri, collectionId, 'grandson-nft-metadata');
+
+    const ownerParentNFT: NftIdTuple = [collectionId, parentNftId];
+
+    await sendNft(api, 'sent', alice, collectionId, childNftId, ownerParentNFT);
+
+    const isChild = await isNftChildOfAnother(api, collectionId, childNftId, ownerParentNFT);
+    expect(isChild).to.be.true;
+
+    const ownerChildNFT: NftIdTuple = [collectionId, childNftId];
+    await sendNft(api, 'sent', alice, collectionId, grandsonNftId, ownerChildNFT);
+
+    const isGrandson = await isNftChildOfAnother(api, collectionId, grandsonNftId, ownerChildNFT);
+    expect(isGrandson).to.be.true;
+
+    const ownerGrandsonNFT: NftIdTuple = [collectionId, grandsonNftId];
+    const tx = sendNft(api, 'sent', alice, collectionId, parentNftId, ownerGrandsonNFT);
+
+    await expectTxFailure(/rmrkCore\.CannotSendToDescendentOrSelf/, tx);
+    const isOuroboros = await isNftChildOfAnother(api, collectionId, parentNftId, ownerGrandsonNFT);
+    expect(isOuroboros).to.be.false;
+  });
+
+  it('send nested NFT to another user', async () => {
+    const originalOwner = alice;
+    const newOwner = bob;
+
+    const collectionId = await createTestCollection(alice);
+
+    const parentNftId = await mintNft(api, alice, originalOwner, collectionId, 'parent-nft-metadata');
+    const childNftId = await mintNft(api, alice, originalOwner, collectionId, 'child-nft-metadata');
+
+    const parentNftTuple: NftIdTuple = [collectionId, parentNftId];
+
+    await sendNft(api, 'sent', originalOwner, collectionId, childNftId, parentNftTuple);
+
+    await sendNft(api, 'sent', originalOwner, collectionId, childNftId, newOwner);
+  });
+
+  it('[negative] send nested NFT to another user (by a not-root-owner)', async () => {
+    const originalOwner = alice;
+    const newOwner = bob;
+
+    const collectionId = await createTestCollection(alice);
+
+    const parentNftId = await mintNft(api, alice, originalOwner, collectionId, 'parent-nft-metadata');
+    const childNftId = await mintNft(api, alice, originalOwner, collectionId, 'child-nft-metadata');
+
+    const parentNftTuple: NftIdTuple = [collectionId, parentNftId];
+
+    await sendNft(api, 'sent', originalOwner, collectionId, childNftId, parentNftTuple);
+
+    const tx = sendNft(api, 'sent', newOwner, collectionId, childNftId, newOwner);
+
+    await expectTxFailure(/rmrkCore\.NoPermission/, tx);
+  });
+
+  after(() => { api.disconnect(); });
+});
deletedtests/src/rmrk/sendNft.test.tsdiffbeforeafterboth
--- a/tests/src/rmrk/sendNft.test.ts
+++ /dev/null
@@ -1,256 +0,0 @@
-import {expect} from 'chai';
-import {getApiConnection} from '../substrate/substrate-api';
-import {createCollection, mintNft, sendNft} from './util/tx';
-import {NftIdTuple} from './util/fetch';
-import {isNftChildOfAnother, expectTxFailure} from './util/helpers';
-import {requirePallets, Pallets} from '../deprecated-helpers/helpers';
-
-describe('integration test: send NFT', () => {
-  let api: any;
-  before(async function () {
-    api = await getApiConnection();
-    await requirePallets(this, [Pallets.RmrkCore]);
-  });
-
-  const maxNftId = 0xFFFFFFFF;
-
-  const alice = '//Alice';
-  const bob = '//Bob';
-
-  const createTestCollection = async (issuerUri: string) => {
-    return await createCollection(
-      api,
-      issuerUri,
-      'nft-collection-metadata',
-      null,
-      'nft-collection',
-    );
-  };
-
-
-  it('send NFT to another user', async () => {
-    const originalOwnerUri = alice;
-    const newOwnerUri = bob;
-
-    const collectionId = await createTestCollection(alice);
-
-    const nftId = await mintNft(api, alice, originalOwnerUri, collectionId, 'nft-metadata');
-
-    await sendNft(api, 'sent', originalOwnerUri, collectionId, nftId, newOwnerUri);
-  });
-
-  it('[negative] unable to send non-existing NFT', async () => {
-    const originalOwnerUri = alice;
-    const newOwnerUri = bob;
-
-    const collectionId = 0;
-    const tx = sendNft(api, 'sent', originalOwnerUri, collectionId, maxNftId, newOwnerUri);
-
-    await expectTxFailure(/rmrkCore\.NoAvailableNftId/, tx);
-  });
-
-  it('[negative] unable to send NFT by a not-an-owner', async () => {
-    const originalOwnerUri = alice;
-    const newOwnerUri = bob;
-
-    const collectionId = await createTestCollection(alice);
-
-    const nftId = await mintNft(api, alice, originalOwnerUri, collectionId, 'nft-metadata');
-
-    const tx = sendNft(api, 'sent', newOwnerUri, collectionId, nftId, newOwnerUri);
-    await expectTxFailure(/rmrkCore\.NoPermission/, tx);
-  });
-
-  it('send NFT to another NFT (same owner)', async () => {
-    const originalOwnerUri = alice;
-
-    const collectionId = await createTestCollection(alice);
-
-    const parentNftId = await mintNft(api, alice, originalOwnerUri, collectionId, 'parent-nft-metadata');
-    const childNftId = await mintNft(api, alice, originalOwnerUri, collectionId, 'child-nft-metadata');
-
-    const newOwnerNFT: NftIdTuple = [collectionId, parentNftId];
-
-    await sendNft(api, 'sent', alice, collectionId, childNftId, newOwnerNFT);
-
-    const isChild = await isNftChildOfAnother(api, collectionId, childNftId, newOwnerNFT);
-    expect(isChild).to.be.true;
-  });
-
-  it('[negative] send non-existing NFT to another NFT', async () => {
-    const originalOwnerUri = alice;
-
-    const collectionId = await createTestCollection(alice);
-
-    const parentNftId = await mintNft(api, alice, originalOwnerUri, collectionId, 'parent-nft-metadata');
-    const childNftId = maxNftId;
-
-    const newOwnerNFT: NftIdTuple = [collectionId, parentNftId];
-
-    const tx = sendNft(api, 'sent', alice, collectionId, childNftId, newOwnerNFT);
-
-    await expectTxFailure(/rmrkCore\.NoAvailableNftId/, tx);
-
-    const isChild = await isNftChildOfAnother(api, collectionId, childNftId, newOwnerNFT);
-    expect(isChild).to.be.false;
-  });
-
-  it('send NFT to another NFT (by not-an-owner)', async () => {
-    const originalOwnerUri = alice;
-
-    const collectionId = await createTestCollection(alice);
-
-    const author = alice;
-    const attacker = bob;
-
-    const parentNftId = await mintNft(api, author, originalOwnerUri, collectionId, 'parent-nft-metadata');
-    const childNftId = await mintNft(api, author, originalOwnerUri, collectionId, 'child-nft-metadata');
-
-    const newOwnerNFT: NftIdTuple = [collectionId, parentNftId];
-
-    const tx = sendNft(api, 'sent', attacker, collectionId, childNftId, newOwnerNFT);
-
-    await expectTxFailure(/rmrkCore\.NoPermission/, tx);
-
-    const isChild = await isNftChildOfAnother(api, collectionId, childNftId, newOwnerNFT);
-    expect(isChild).to.be.false;
-  });
-
-  it('[negative] send NFT to non-existing NFT', async () => {
-    const originalOwnerUri = alice;
-
-    const collectionId = await createTestCollection(alice);
-
-    const parentNftId = maxNftId;
-    const childNftId = await mintNft(api, alice, originalOwnerUri, collectionId, 'child-nft-metadata');
-
-    const newOwnerNFT: NftIdTuple = [collectionId, parentNftId];
-
-    const tx = sendNft(api, 'sent', alice, collectionId, childNftId, newOwnerNFT);
-
-    await expectTxFailure(/rmrkCore\.NoAvailableNftId/, tx);
-
-    const isChild = await isNftChildOfAnother(api, collectionId, childNftId, newOwnerNFT);
-    expect(isChild).to.be.false;
-  });
-
-  it('send NFT to another NFT owned by another user', async () => {
-    const ownerAlice = alice;
-    const ownerBob = bob;
-
-    const aliceCollectionId = await createTestCollection(alice);
-    const bobCollectionId = await createTestCollection(bob);
-
-    const parentNftId = await mintNft(api, alice, ownerAlice, aliceCollectionId, 'parent-nft-metadata');
-    const childNftId = await mintNft(api, bob, ownerBob, bobCollectionId, 'child-nft-metadata');
-
-    const newOwnerNFT: NftIdTuple = [aliceCollectionId, parentNftId];
-
-    await sendNft(api, 'pending', bob, bobCollectionId, childNftId, newOwnerNFT);
-  });
-
-  it('[negative] unable to send NFT to itself', async () => {
-    const nftOwner = alice;
-    const collectionId = await createTestCollection(alice);
-
-    const nftId = await mintNft(api, alice, nftOwner, collectionId, 'ouroboros-nft-metadata');
-
-    const newOwnerNFT: NftIdTuple = [collectionId, nftId];
-
-    const tx = sendNft(api, 'sent', alice, collectionId, nftId, newOwnerNFT);
-
-    await expectTxFailure(/rmrkCore\.CannotSendToDescendentOrSelf/, tx);
-
-    const isChild = await isNftChildOfAnother(api, collectionId, nftId, newOwnerNFT);
-    expect(isChild).to.be.false;
-  });
-
-  it('[negative] unable to send NFT to child NFT', async () => {
-    const originalOwnerUri = alice;
-
-    const collectionId = await createTestCollection(alice);
-
-    const parentNftId = await mintNft(api, alice, originalOwnerUri, collectionId, 'parent-nft-metadata');
-    const childNftId = await mintNft(api, alice, originalOwnerUri, collectionId, 'child-nft-metadata');
-
-    const newOwnerNFT: NftIdTuple = [collectionId, parentNftId];
-
-    await sendNft(api, 'sent', alice, collectionId, childNftId, newOwnerNFT);
-
-    const isChild = await isNftChildOfAnother(api, collectionId, childNftId, newOwnerNFT);
-    expect(isChild).to.be.true;
-
-    const descendentOwner: NftIdTuple = [collectionId, childNftId];
-    const tx = sendNft(api, 'sent', alice, collectionId, parentNftId, descendentOwner);
-
-    await expectTxFailure(/rmrkCore\.CannotSendToDescendentOrSelf/, tx);
-    const isOuroboros = await isNftChildOfAnother(api, collectionId, parentNftId, descendentOwner);
-    expect(isOuroboros).to.be.false;
-  });
-
-  it('[negative] unable to send NFT to descendent NFT', async () => {
-    const originalOwnerUri = alice;
-
-    const collectionId = await createTestCollection(alice);
-
-    const parentNftId = await mintNft(api, alice, originalOwnerUri, collectionId, 'parent-nft-metadata');
-    const childNftId = await mintNft(api, alice, originalOwnerUri, collectionId, 'child-nft-metadata');
-    const grandsonNftId = await mintNft(api, alice, originalOwnerUri, collectionId, 'grandson-nft-metadata');
-
-    const ownerParentNFT: NftIdTuple = [collectionId, parentNftId];
-
-    await sendNft(api, 'sent', alice, collectionId, childNftId, ownerParentNFT);
-
-    const isChild = await isNftChildOfAnother(api, collectionId, childNftId, ownerParentNFT);
-    expect(isChild).to.be.true;
-
-    const ownerChildNFT: NftIdTuple = [collectionId, childNftId];
-    await sendNft(api, 'sent', alice, collectionId, grandsonNftId, ownerChildNFT);
-
-    const isGrandson = await isNftChildOfAnother(api, collectionId, grandsonNftId, ownerChildNFT);
-    expect(isGrandson).to.be.true;
-
-    const ownerGrandsonNFT: NftIdTuple = [collectionId, grandsonNftId];
-    const tx = sendNft(api, 'sent', alice, collectionId, parentNftId, ownerGrandsonNFT);
-
-    await expectTxFailure(/rmrkCore\.CannotSendToDescendentOrSelf/, tx);
-    const isOuroboros = await isNftChildOfAnother(api, collectionId, parentNftId, ownerGrandsonNFT);
-    expect(isOuroboros).to.be.false;
-  });
-
-  it('send nested NFT to another user', async () => {
-    const originalOwner = alice;
-    const newOwner = bob;
-
-    const collectionId = await createTestCollection(alice);
-
-    const parentNftId = await mintNft(api, alice, originalOwner, collectionId, 'parent-nft-metadata');
-    const childNftId = await mintNft(api, alice, originalOwner, collectionId, 'child-nft-metadata');
-
-    const parentNftTuple: NftIdTuple = [collectionId, parentNftId];
-
-    await sendNft(api, 'sent', originalOwner, collectionId, childNftId, parentNftTuple);
-
-    await sendNft(api, 'sent', originalOwner, collectionId, childNftId, newOwner);
-  });
-
-  it('[negative] send nested NFT to another user (by a not-root-owner)', async () => {
-    const originalOwner = alice;
-    const newOwner = bob;
-
-    const collectionId = await createTestCollection(alice);
-
-    const parentNftId = await mintNft(api, alice, originalOwner, collectionId, 'parent-nft-metadata');
-    const childNftId = await mintNft(api, alice, originalOwner, collectionId, 'child-nft-metadata');
-
-    const parentNftTuple: NftIdTuple = [collectionId, parentNftId];
-
-    await sendNft(api, 'sent', originalOwner, collectionId, childNftId, parentNftTuple);
-
-    const tx = sendNft(api, 'sent', newOwner, collectionId, childNftId, newOwner);
-
-    await expectTxFailure(/rmrkCore\.NoPermission/, tx);
-  });
-
-  after(() => { api.disconnect(); });
-});
addedtests/src/rmrk/setCollectionProperty.seqtest.tsdiffbeforeafterboth
--- /dev/null
+++ b/tests/src/rmrk/setCollectionProperty.seqtest.ts
@@ -0,0 +1,69 @@
+import {getApiConnection} from '../substrate/substrate-api';
+import {requirePallets, Pallets} from '../deprecated-helpers/helpers';
+import {expectTxFailure} from './util/helpers';
+import {createCollection, setPropertyCollection} from './util/tx';
+
+describe('integration test: set collection property', () => {
+  const alice = '//Alice';
+  const bob = '//Bob';
+
+  let api: any;
+  before(async function () {
+    api = await getApiConnection();
+    await requirePallets(this, [Pallets.RmrkCore]);
+  });
+
+  it('set collection property', async () => {
+    await createCollection(
+      api,
+      alice,
+      'test-metadata',
+      null,
+      'test-symbol',
+    ).then(async (collectionId) => {
+      await setPropertyCollection(api, alice, collectionId, 'test_key', '42');
+      await setPropertyCollection(api, alice, collectionId, 'test_key', '10');
+      await setPropertyCollection(
+        api,
+        alice,
+        collectionId,
+        'second_test_key',
+        '111',
+      );
+    });
+  });
+
+  it('[negative] set non-existing collection property', async () => {
+    const tx = setPropertyCollection(
+      api,
+      alice,
+      9999,
+      'test_key',
+      '42',
+    );
+    await expectTxFailure(/rmrkCore\.CollectionUnknown/, tx);
+  });
+
+  it('[negative] set property not an owner NFT collection issuer', async () => {
+    await createCollection(
+      api,
+      bob,
+      'test-metadata',
+      null,
+      'test-symbol',
+    ).then(async (collectionId) => {
+      const tx = setPropertyCollection(
+        api,
+        alice,
+        collectionId,
+        'test_key',
+        '42',
+      );
+      await expectTxFailure(/rmrkCore\.NoPermission/, tx);
+    });
+  });
+
+  after(() => {
+    api.disconnect();
+  });
+});
deletedtests/src/rmrk/setCollectionProperty.test.tsdiffbeforeafterboth
--- a/tests/src/rmrk/setCollectionProperty.test.ts
+++ /dev/null
@@ -1,69 +0,0 @@
-import {getApiConnection} from '../substrate/substrate-api';
-import {requirePallets, Pallets} from '../deprecated-helpers/helpers';
-import {expectTxFailure} from './util/helpers';
-import {createCollection, setPropertyCollection} from './util/tx';
-
-describe('integration test: set collection property', () => {
-  const Alice = '//Alice';
-  const Bob = '//Bob';
-
-  let api: any;
-  before(async function () {
-    api = await getApiConnection();
-    await requirePallets(this, [Pallets.RmrkCore]);
-  });
-
-  it('set collection property', async () => {
-    await createCollection(
-      api,
-      Alice,
-      'test-metadata',
-      null,
-      'test-symbol',
-    ).then(async (collectionId) => {
-      await setPropertyCollection(api, Alice, collectionId, 'test_key', '42');
-      await setPropertyCollection(api, Alice, collectionId, 'test_key', '10');
-      await setPropertyCollection(
-        api,
-        Alice,
-        collectionId,
-        'second_test_key',
-        '111',
-      );
-    });
-  });
-
-  it('[negative] set non-existing collection property', async () => {
-    const tx = setPropertyCollection(
-      api,
-      Alice,
-      9999,
-      'test_key',
-      '42',
-    );
-    await expectTxFailure(/rmrkCore\.CollectionUnknown/, tx);
-  });
-
-  it('[negative] set property not an owner NFT collection issuer', async () => {
-    await createCollection(
-      api,
-      Bob,
-      'test-metadata',
-      null,
-      'test-symbol',
-    ).then(async (collectionId) => {
-      const tx = setPropertyCollection(
-        api,
-        Alice,
-        collectionId,
-        'test_key',
-        '42',
-      );
-      await expectTxFailure(/rmrkCore\.NoPermission/, tx);
-    });
-  });
-
-  after(() => {
-    api.disconnect();
-  });
-});
addedtests/src/rmrk/setEquippableList.seqtest.tsdiffbeforeafterboth
--- /dev/null
+++ b/tests/src/rmrk/setEquippableList.seqtest.ts
@@ -0,0 +1,115 @@
+import {getApiConnection} from '../substrate/substrate-api';
+import {requirePallets, Pallets} from '../deprecated-helpers/helpers';
+import {expectTxFailure} from './util/helpers';
+import {createCollection, createBase, setEquippableList} from './util/tx';
+
+describe("integration test: set slot's Equippable List", () => {
+  let api: any;
+  before(async function () {
+    api = await getApiConnection();
+    await requirePallets(this, [Pallets.RmrkCore]);
+  });
+
+  const alice = '//Alice';
+  const bob = '//Bob';
+
+  it("set Base's slot Equippable List", async () => {
+    const collectionIds = [
+      await createCollection(
+        api,
+        alice,
+        'equiplist-collection-metadata',
+        null,
+        'equiplist-0',
+      ),
+      await createCollection(
+        api,
+        alice,
+        'equiplist-collection-metadata',
+        null,
+        'equiplist-1',
+      ),
+    ];
+
+    const slotId = 202;
+
+    const baseId = await createBase(api, alice, 'slotpartany-base-type', 'slotpartany', [
+      {
+        'SlotPart': {
+          id: slotId,
+          equippable: 'All',
+          z: 1,
+          src: 'some-fallback-slot-url',
+        },
+      },
+    ]);
+
+    await setEquippableList(api, alice, baseId, slotId, 'All');
+    await setEquippableList(api, alice, baseId, slotId, 'Empty');
+    await setEquippableList(api, alice, baseId, slotId, {'Custom': collectionIds});
+  });
+
+  it('[negative] unable to set equippable list of a slot of non-existing base', async () => {
+    const maxBaseId = 0xFFFFFFFF;
+    const slotId = 0;
+
+    const tx = setEquippableList(api, alice, maxBaseId, slotId, 'All');
+    await expectTxFailure(/rmrkEquip\.BaseDoesntExist/, tx);
+  });
+
+  it('[negative] unable to set equippable list by a not-an-owner', async () => {
+    const slotId = 42;
+
+    const baseId = await createBase(api, alice, 'slotpartany-base-type', 'slotpartany', [
+      {
+        'SlotPart': {
+          id: slotId,
+          equippable: 'All',
+          z: 1,
+          src: 'some-fallback-slot-url',
+        },
+      },
+    ]);
+
+    const tx = setEquippableList(api, bob, baseId, slotId, 'All');
+    await expectTxFailure(/rmrkEquip\.PermissionError/, tx);
+  });
+
+  it('[negative] unable to set equippable list to a fixed part', async () => {
+    const fixedPartId = 42;
+
+    const baseId = await createBase(api, alice, 'fixedpart-base-type', 'fixedpart', [
+      {
+        'FixedPart': {
+          id: fixedPartId,
+          z: 0,
+          src: 'fixed-part-url',
+        },
+      },
+    ]);
+
+    const tx = setEquippableList(api, alice, baseId, fixedPartId, 'All');
+    await expectTxFailure(/rmrkEquip\.NoEquippableOnFixedPart/, tx);
+  });
+
+  it('[negative] unable to set equippable list to non-existing slot', async () => {
+    const slotId = 777;
+    const maxSlotId = 0xFFFFFFFF;
+
+    const baseId = await createBase(api, alice, 'slotpartany-base-type', 'slotpartany', [
+      {
+        'SlotPart': {
+          id: slotId,
+          equippable: 'All',
+          z: 1,
+          src: 'some-fallback-slot-url',
+        },
+      },
+    ]);
+
+    const tx = setEquippableList(api, alice, baseId, maxSlotId, 'All');
+    await expectTxFailure(/rmrkEquip\.PartDoesntExist/, tx);
+  });
+
+  after(() => { api.disconnect(); });
+});
deletedtests/src/rmrk/setEquippableList.test.tsdiffbeforeafterboth
--- a/tests/src/rmrk/setEquippableList.test.ts
+++ /dev/null
@@ -1,115 +0,0 @@
-import {getApiConnection} from '../substrate/substrate-api';
-import {requirePallets, Pallets} from '../deprecated-helpers/helpers';
-import {expectTxFailure} from './util/helpers';
-import {createCollection, createBase, setEquippableList} from './util/tx';
-
-describe("integration test: set slot's Equippable List", () => {
-  let api: any;
-  before(async function () {
-    api = await getApiConnection();
-    await requirePallets(this, [Pallets.RmrkCore]);
-  });
-
-  const alice = '//Alice';
-  const bob = '//Bob';
-
-  it("set Base's slot Equippable List", async () => {
-    const collectionIds = [
-      await createCollection(
-        api,
-        alice,
-        'equiplist-collection-metadata',
-        null,
-        'equiplist-0',
-      ),
-      await createCollection(
-        api,
-        alice,
-        'equiplist-collection-metadata',
-        null,
-        'equiplist-1',
-      ),
-    ];
-
-    const slotId = 202;
-
-    const baseId = await createBase(api, alice, 'slotpartany-base-type', 'slotpartany', [
-      {
-        'SlotPart': {
-          id: slotId,
-          equippable: 'All',
-          z: 1,
-          src: 'some-fallback-slot-url',
-        },
-      },
-    ]);
-
-    await setEquippableList(api, alice, baseId, slotId, 'All');
-    await setEquippableList(api, alice, baseId, slotId, 'Empty');
-    await setEquippableList(api, alice, baseId, slotId, {'Custom': collectionIds});
-  });
-
-  it('[negative] unable to set equippable list of a slot of non-existing base', async () => {
-    const maxBaseId = 0xFFFFFFFF;
-    const slotId = 0;
-
-    const tx = setEquippableList(api, alice, maxBaseId, slotId, 'All');
-    await expectTxFailure(/rmrkEquip\.BaseDoesntExist/, tx);
-  });
-
-  it('[negative] unable to set equippable list by a not-an-owner', async () => {
-    const slotId = 42;
-
-    const baseId = await createBase(api, alice, 'slotpartany-base-type', 'slotpartany', [
-      {
-        'SlotPart': {
-          id: slotId,
-          equippable: 'All',
-          z: 1,
-          src: 'some-fallback-slot-url',
-        },
-      },
-    ]);
-
-    const tx = setEquippableList(api, bob, baseId, slotId, 'All');
-    await expectTxFailure(/rmrkEquip\.PermissionError/, tx);
-  });
-
-  it('[negative] unable to set equippable list to a fixed part', async () => {
-    const fixedPartId = 42;
-
-    const baseId = await createBase(api, alice, 'fixedpart-base-type', 'fixedpart', [
-      {
-        'FixedPart': {
-          id: fixedPartId,
-          z: 0,
-          src: 'fixed-part-url',
-        },
-      },
-    ]);
-
-    const tx = setEquippableList(api, alice, baseId, fixedPartId, 'All');
-    await expectTxFailure(/rmrkEquip\.NoEquippableOnFixedPart/, tx);
-  });
-
-  it('[negative] unable to set equippable list to non-existing slot', async () => {
-    const slotId = 777;
-    const maxSlotId = 0xFFFFFFFF;
-
-    const baseId = await createBase(api, alice, 'slotpartany-base-type', 'slotpartany', [
-      {
-        'SlotPart': {
-          id: slotId,
-          equippable: 'All',
-          z: 1,
-          src: 'some-fallback-slot-url',
-        },
-      },
-    ]);
-
-    const tx = setEquippableList(api, alice, baseId, maxSlotId, 'All');
-    await expectTxFailure(/rmrkEquip\.PartDoesntExist/, tx);
-  });
-
-  after(() => { api.disconnect(); });
-});
addedtests/src/rmrk/setNftProperty.seqtest.tsdiffbeforeafterboth
--- /dev/null
+++ b/tests/src/rmrk/setNftProperty.seqtest.ts
@@ -0,0 +1,89 @@
+import {getApiConnection} from '../substrate/substrate-api';
+import {requirePallets, Pallets} from '../deprecated-helpers/helpers';
+import {NftIdTuple} from './util/fetch';
+import {expectTxFailure} from './util/helpers';
+import {createCollection, mintNft, sendNft, setNftProperty} from './util/tx';
+
+describe('integration test: set NFT property', () => {
+  let api: any;
+  before(async function () {
+    api = await getApiConnection();
+    await requirePallets(this, [Pallets.RmrkCore]);
+  });
+
+  const alice = '//Alice';
+  const bob = '//Bob';
+
+  const createTestCollection = async (issuerUri: string) => {
+    return await createCollection(
+      api,
+      issuerUri,
+      'setprop-nft-collection-metadata',
+      null,
+      'setprop',
+    );
+  };
+
+  it('set NFT property', async () => {
+    const ownerAlice = alice;
+
+    const collectionId = await createTestCollection(alice);
+    const nftId = await mintNft(api, alice, ownerAlice, collectionId, 'prop-nft');
+
+    await setNftProperty(api, alice, collectionId, nftId, 'test-key', 'test-key-value');
+    await setNftProperty(api, alice, collectionId, nftId, 'test-key', 'updated-key-value');
+    await setNftProperty(api, alice, collectionId, nftId, 'second-test-key', 'second-test-key-value');
+  });
+
+  it('[negative] unable to set a property of non-existing NFT', async () => {
+    const collectionId = 0;
+    const maxNftId = 0xFFFFFFFF;
+
+    const tx = setNftProperty(api, alice, collectionId, maxNftId, 'test-key', 'test-value');
+
+    await expectTxFailure(/rmrkCore\.NoAvailableNftId/, tx);
+  });
+
+  it('[negative] unable to set a property by not-an-owner', async () => {
+    const ownerAlice = alice;
+
+    const collectionId = await createTestCollection(alice);
+    const nftId = await mintNft(api, alice, ownerAlice, collectionId, 'prop-nft');
+
+    const tx = setNftProperty(api, bob, collectionId, nftId, 'test-key', 'test-key-value');
+
+    await expectTxFailure(/rmrkCore\.NoPermission/, tx);
+  });
+
+  it('set a property to nested NFT', async () => {
+    const ownerAlice = alice;
+
+    const collectionId = await createTestCollection(alice);
+    const parentNftId = await mintNft(api, alice, ownerAlice, collectionId, 'prop-parent-nft');
+    const childNftId = await mintNft(api, alice, ownerAlice, collectionId, 'prop-child-nft');
+
+    const ownerNft: NftIdTuple = [collectionId, parentNftId];
+
+    await sendNft(api, 'sent', ownerAlice, collectionId, childNftId, ownerNft);
+
+    await setNftProperty(api, alice, collectionId, childNftId, 'test-key', 'test-key-value');
+  });
+
+  it('[negative] set a property to nested NFT (by not-root-owner)', async () => {
+    const ownerAlice = alice;
+
+    const collectionId = await createTestCollection(alice);
+    const parentNftId = await mintNft(api, alice, ownerAlice, collectionId, 'prop-parent-nft');
+    const childNftId = await mintNft(api, alice, ownerAlice, collectionId, 'prop-child-nft');
+
+    const ownerNft: NftIdTuple = [collectionId, parentNftId];
+
+    await sendNft(api, 'sent', ownerAlice, collectionId, childNftId, ownerNft);
+
+    const tx = setNftProperty(api, bob, collectionId, childNftId, 'test-key', 'test-key-value');
+
+    await expectTxFailure(/rmrkCore\.NoPermission/, tx);
+  });
+
+  after(() => { api.disconnect(); });
+});
deletedtests/src/rmrk/setNftProperty.test.tsdiffbeforeafterboth
--- a/tests/src/rmrk/setNftProperty.test.ts
+++ /dev/null
@@ -1,89 +0,0 @@
-import {getApiConnection} from '../substrate/substrate-api';
-import {requirePallets, Pallets} from '../deprecated-helpers/helpers';
-import {NftIdTuple} from './util/fetch';
-import {expectTxFailure} from './util/helpers';
-import {createCollection, mintNft, sendNft, setNftProperty} from './util/tx';
-
-describe('integration test: set NFT property', () => {
-  let api: any;
-  before(async function () {
-    api = await getApiConnection();
-    await requirePallets(this, [Pallets.RmrkCore]);
-  });
-
-  const alice = '//Alice';
-  const bob = '//Bob';
-
-  const createTestCollection = async (issuerUri: string) => {
-    return await createCollection(
-      api,
-      issuerUri,
-      'setprop-nft-collection-metadata',
-      null,
-      'setprop',
-    );
-  };
-
-  it('set NFT property', async () => {
-    const ownerAlice = alice;
-
-    const collectionId = await createTestCollection(alice);
-    const nftId = await mintNft(api, alice, ownerAlice, collectionId, 'prop-nft');
-
-    await setNftProperty(api, alice, collectionId, nftId, 'test-key', 'test-key-value');
-    await setNftProperty(api, alice, collectionId, nftId, 'test-key', 'updated-key-value');
-    await setNftProperty(api, alice, collectionId, nftId, 'second-test-key', 'second-test-key-value');
-  });
-
-  it('[negative] unable to set a property of non-existing NFT', async () => {
-    const collectionId = 0;
-    const maxNftId = 0xFFFFFFFF;
-
-    const tx = setNftProperty(api, alice, collectionId, maxNftId, 'test-key', 'test-value');
-
-    await expectTxFailure(/rmrkCore\.NoAvailableNftId/, tx);
-  });
-
-  it('[negative] unable to set a property by not-an-owner', async () => {
-    const ownerAlice = alice;
-
-    const collectionId = await createTestCollection(alice);
-    const nftId = await mintNft(api, alice, ownerAlice, collectionId, 'prop-nft');
-
-    const tx = setNftProperty(api, bob, collectionId, nftId, 'test-key', 'test-key-value');
-
-    await expectTxFailure(/rmrkCore\.NoPermission/, tx);
-  });
-
-  it('set a property to nested NFT', async () => {
-    const ownerAlice = alice;
-
-    const collectionId = await createTestCollection(alice);
-    const parentNftId = await mintNft(api, alice, ownerAlice, collectionId, 'prop-parent-nft');
-    const childNftId = await mintNft(api, alice, ownerAlice, collectionId, 'prop-child-nft');
-
-    const ownerNft: NftIdTuple = [collectionId, parentNftId];
-
-    await sendNft(api, 'sent', ownerAlice, collectionId, childNftId, ownerNft);
-
-    await setNftProperty(api, alice, collectionId, childNftId, 'test-key', 'test-key-value');
-  });
-
-  it('[negative] set a property to nested NFT (by not-root-owner)', async () => {
-    const ownerAlice = alice;
-
-    const collectionId = await createTestCollection(alice);
-    const parentNftId = await mintNft(api, alice, ownerAlice, collectionId, 'prop-parent-nft');
-    const childNftId = await mintNft(api, alice, ownerAlice, collectionId, 'prop-child-nft');
-
-    const ownerNft: NftIdTuple = [collectionId, parentNftId];
-
-    await sendNft(api, 'sent', ownerAlice, collectionId, childNftId, ownerNft);
-
-    const tx = setNftProperty(api, bob, collectionId, childNftId, 'test-key', 'test-key-value');
-
-    await expectTxFailure(/rmrkCore\.NoPermission/, tx);
-  });
-
-  after(() => { api.disconnect(); });
-});
addedtests/src/rmrk/setResourcePriorities.seqtest.tsdiffbeforeafterboth
--- /dev/null
+++ b/tests/src/rmrk/setResourcePriorities.seqtest.ts
@@ -0,0 +1,57 @@
+import {getApiConnection} from '../substrate/substrate-api';
+import {requirePallets, Pallets} from '../deprecated-helpers/helpers';
+import {expectTxFailure} from './util/helpers';
+import {mintNft, createCollection, setResourcePriorities} from './util/tx';
+
+describe('integration test: set NFT resource priorities', () => {
+  let api: any;
+  before(async function () {
+    api = await getApiConnection();
+    await requirePallets(this, [Pallets.RmrkCore]);
+  });
+
+  const alice = '//Alice';
+  const bob = '//Bob';
+
+  const createTestCollection = (issuerUri: string) => {
+    return createCollection(
+      api,
+      issuerUri,
+      'resprio-collection-metadata',
+      null,
+      'resprio',
+    );
+  };
+
+  it('set NFT resource priorities', async () => {
+    const owner = alice;
+
+    const collectionId = await createTestCollection(alice);
+    const nftId = await mintNft(api, alice, owner, collectionId, 'resprio-nft-metadata');
+
+    await setResourcePriorities(api, alice, collectionId, nftId, [10, 42]);
+  });
+
+  it('[negative] set NFT resource priorities by a not-an-owner', async () => {
+    const owner = alice;
+    const attacker = bob;
+
+    const collectionId = await createTestCollection(alice);
+    const nftId = await mintNft(api, alice, owner, collectionId, 'resprio-nft-metadata');
+
+    const tx = setResourcePriorities(api, attacker, collectionId, nftId, [10, 42]);
+
+    await expectTxFailure(/rmrkCore\.NoPermission/, tx);
+  });
+
+  it('[negative] set NFT resource priorities to non-existing NFT', async () => {
+    const collectionId = 0;
+    const maxNftId = 0xFFFFFFFF;
+
+    const tx = setResourcePriorities(api, alice, collectionId, maxNftId, [10, 42]);
+
+    await expectTxFailure(/rmrkCore\.NoAvailableNftId/, tx);
+  });
+
+  after(() => { api.disconnect(); });
+});
deletedtests/src/rmrk/setResourcePriorities.test.tsdiffbeforeafterboth
--- a/tests/src/rmrk/setResourcePriorities.test.ts
+++ /dev/null
@@ -1,59 +0,0 @@
-import {getApiConnection} from '../substrate/substrate-api';
-import {requirePallets, Pallets} from '../deprecated-helpers/helpers';
-import {expectTxFailure} from './util/helpers';
-import {mintNft, createCollection, setResourcePriorities} from './util/tx';
-
-describe('integration test: set NFT resource priorities', () => {
-  let api: any;
-  before(async function () {
-    api = await getApiConnection();
-    await requirePallets(this, [Pallets.RmrkCore]);
-  });
-
-  const alice = '//Alice';
-  const bob = '//Bob';
-
-  const createTestCollection = (issuerUri: string) => {
-    return createCollection(
-      api,
-      issuerUri,
-      'resprio-collection-metadata',
-      null,
-      'resprio',
-    );
-  };
-
-  it('set NFT resource priorities', async () => {
-    const owner = alice;
-
-    const collectionId = await createTestCollection(alice);
-    const nftId = await mintNft(api, alice, owner, collectionId, 'resprio-nft-metadata');
-
-    await setResourcePriorities(api, alice, collectionId, nftId, [10, 42]);
-  });
-
-  it('[negative] set NFT resource priorities by a not-an-owner', async () => {
-    const owner = alice;
-    const attacker = bob;
-
-    const collectionId = await createTestCollection(alice);
-    const nftId = await mintNft(api, alice, owner, collectionId, 'resprio-nft-metadata');
-
-    const tx = setResourcePriorities(api, attacker, collectionId, nftId, [10, 42]);
-
-    await expectTxFailure(/rmrkCore\.NoPermission/, tx);
-  });
-
-  it('[negative] set NFT resource priorities to non-existing NFT', async () => {
-    const owner = alice;
-
-    const collectionId = 0;
-    const maxNftId = 0xFFFFFFFF;
-
-    const tx = setResourcePriorities(api, alice, collectionId, maxNftId, [10, 42]);
-
-    await expectTxFailure(/rmrkCore\.NoAvailableNftId/, tx);
-  });
-
-  after(() => { api.disconnect(); });
-});
modifiedtests/src/rmrk/util/fetch.tsdiffbeforeafterboth
--- a/tests/src/rmrk/util/fetch.ts
+++ b/tests/src/rmrk/util/fetch.ts
@@ -1,5 +1,5 @@
 import {ApiPromise} from '@polkadot/api';
-import type {Option, Bytes} from '@polkadot/types-codec';
+import type {Option} from '@polkadot/types-codec';
 import type {
   RmrkTraitsCollectionCollectionInfo as Collection,
   RmrkTraitsNftNftInfo as Nft,
modifiedtests/src/rmrk/util/helpers.tsdiffbeforeafterboth
--- a/tests/src/rmrk/util/helpers.ts
+++ b/tests/src/rmrk/util/helpers.ts
@@ -107,7 +107,7 @@
 export function isTxResultSuccess(events: EventRecord[]): boolean {
   let success = false;
 
-  events.forEach(({event: {data, method, section}}) => {
+  events.forEach(({event: {method}}) => {
     if (method == 'ExtrinsicSuccess') {
       success = true;
     }