git.delta.rocks / unique-network / refs/commits / 0a7dd513e470

difftreelog

yarn fix

Daniel Shiposha2022-07-04parent: #86d26e3.patch.diff
in: master

23 files changed

modifiedtests/src/rmrk/acceptNft.test.tsdiffbeforeafterboth
--- a/tests/src/rmrk/acceptNft.test.ts
+++ b/tests/src/rmrk/acceptNft.test.ts
@@ -1,103 +1,103 @@
-import { expect } from "chai";
-import { getApiConnection } from "../substrate/substrate-api";
+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";
+  createCollection,
+  mintNft,
+  sendNft,
+  acceptNft,
+} from './util/tx';
+import {NftIdTuple} from './util/fetch';
+import {isNftChildOfAnother, expectTxFailure} from './util/helpers';
 
-describe("integration test: accept NFT", () => {
-    let api: any;
-    before(async () => { api = await getApiConnection(); });
+describe('integration test: accept NFT', () => {
+  let api: any;
+  before(async () => { api = await getApiConnection(); });
 
-    const alice = "//Alice";
-    const bob = "//Bob";
+  const alice = '//Alice';
+  const bob = '//Bob';
 
-    const createTestCollection = async (issuerUri: string) => {
-        return await createCollection(
-            api,
-            issuerUri,
-            "accept-metadata",
-            null,
-            "acpt"
-        );
-    }
+  const createTestCollection = async (issuerUri: string) => {
+    return await createCollection(
+      api,
+      issuerUri,
+      'accept-metadata',
+      null,
+      'acpt',
+    );
+  };
 
-    it("accept NFT", async () => {
-        const ownerAlice = alice;
-        const ownerBob = bob;
+  it('accept NFT', async () => {
+    const ownerAlice = alice;
+    const ownerBob = bob;
 
-        const aliceCollectionId = await createTestCollection(alice);
-        const bobCollectionId = await createTestCollection(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 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 newOwnerNFT: NftIdTuple = [aliceCollectionId, parentNftId];
 
-        await sendNft(api, "pending", ownerBob, bobCollectionId, childNftId, newOwnerNFT);
-        await acceptNft(api, alice, bobCollectionId, childNftId, newOwnerNFT);
+    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;
-    });
+    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;
+  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 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 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 newOwnerNFT: NftIdTuple = [aliceCollectionId, parentNftId];
 
-        await sendNft(api, "pending", ownerBob, bobCollectionId, childNftId, newOwnerNFT);
-        const tx = acceptNft(api, bob, bobCollectionId, childNftId, newOwnerNFT);
+    await sendNft(api, 'pending', ownerBob, bobCollectionId, childNftId, newOwnerNFT);
+    const tx = acceptNft(api, bob, bobCollectionId, childNftId, newOwnerNFT);
 
-        await expectTxFailure(/rmrkCore\.NoPermission/, tx);
-    });
+    await expectTxFailure(/rmrkCore\.NoPermission/, tx);
+  });
 
-    it("[negative] unable to accept non-existing NFT", async () => {
-        const collectionId = 0;
-        const maxNftId = 0xFFFFFFFF;
+  it('[negative] unable to accept non-existing NFT', async () => {
+    const collectionId = 0;
+    const maxNftId = 0xFFFFFFFF;
 
-        const owner = alice;
-        const aliceCollectionId = await createTestCollection(alice);
+    const owner = alice;
+    const aliceCollectionId = await createTestCollection(alice);
 
-        const parentNftId = await mintNft(api, alice, owner, aliceCollectionId, "parent-nft-metadata");
+    const parentNftId = await mintNft(api, alice, owner, aliceCollectionId, 'parent-nft-metadata');
 
-        const newOwnerNFT: NftIdTuple = [aliceCollectionId, parentNftId];
+    const newOwnerNFT: NftIdTuple = [aliceCollectionId, parentNftId];
 
-        const tx = acceptNft(api, alice, collectionId, maxNftId, newOwnerNFT);
+    const tx = acceptNft(api, alice, collectionId, maxNftId, newOwnerNFT);
 
-        await expectTxFailure(/rmrkCore\.NoAvailableNftId/, tx);
-    });
+    await expectTxFailure(/rmrkCore\.NoAvailableNftId/, tx);
+  });
 
-    it("[negative] unable to accept NFT which is not sent", async () => {
-        const ownerAlice = alice;
-        const ownerBob = bob;
+  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 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 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 newOwnerNFT: NftIdTuple = [aliceCollectionId, parentNftId];
 
-        const tx = acceptNft(api, alice, bobCollectionId, childNftId, newOwnerNFT);
+    const tx = acceptNft(api, alice, bobCollectionId, childNftId, newOwnerNFT);
 
-        await expectTxFailure(/rmrkCore\.NoPermission/, tx);
+    await expectTxFailure(/rmrkCore\.NoPermission/, tx);
 
-        const isChild = await isNftChildOfAnother(api, bobCollectionId, childNftId, newOwnerNFT);
-        expect(isChild).to.be.false;
-    });
+    const isChild = await isNftChildOfAnother(api, bobCollectionId, childNftId, newOwnerNFT);
+    expect(isChild).to.be.false;
+  });
 
-    after(() => { api.disconnect(); });
+  after(() => { api.disconnect(); });
 });
modifiedtests/src/rmrk/addResource.test.tsdiffbeforeafterboth
--- a/tests/src/rmrk/addResource.test.ts
+++ b/tests/src/rmrk/addResource.test.ts
@@ -1,7 +1,7 @@
-import { expect } from "chai";
-import { getApiConnection } from "../substrate/substrate-api";
-import { NftIdTuple } from "./util/fetch";
-import { expectTxFailure, getResourceById } from "./util/helpers";
+import {expect} from 'chai';
+import {getApiConnection} from '../substrate/substrate-api';
+import {NftIdTuple} from './util/fetch';
+import {expectTxFailure, getResourceById} from './util/helpers';
 import {
   addNftBasicResource,
   acceptNftResource,
@@ -10,16 +10,16 @@
   sendNft,
   addNftSlotResource,
   addNftComposableResource,
-} from "./util/tx";
-import {RmrkTraitsResourceResourceInfo as ResourceInfo} from "@polkadot/types/lookup";
+} from './util/tx';
+import {RmrkTraitsResourceResourceInfo as ResourceInfo} from '@polkadot/types/lookup';
 
-describe("integration test: add NFT resource", () => {
-  const Alice = "//Alice";
-  const Bob = "//Bob";
-  const src = "test-res-src";
-  const metadata = "test-res-metadata";
-  const license = "test-res-license";
-  const thumb = "test-res-thumb";
+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;
 
@@ -28,13 +28,13 @@
     api = await getApiConnection();
   });
 
-  it("add resource", async () => {
+  it('add resource', async () => {
     const collectionIdAlice = await createCollection(
       api,
       Alice,
-      "test-metadata",
+      'test-metadata',
       null,
-      "test-symbol"
+      'test-symbol',
     );
 
     const nftAlice = await mintNft(
@@ -42,19 +42,19 @@
       Alice,
       Alice,
       collectionIdAlice,
-      "nft-metadata"
+      'nft-metadata',
     );
 
     await addNftBasicResource(
       api,
       Alice,
-      "added",
+      'added',
       collectionIdAlice,
       nftAlice,
       src,
       metadata,
       license,
-      thumb
+      thumb,
     );
   });
 
@@ -62,28 +62,28 @@
     const collectionIdAlice = await createCollection(
       api,
       Alice,
-      "test-metadata",
+      'test-metadata',
       null,
-      "test-symbol"
+      '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 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 sendNft(api, 'sent', Alice, collectionIdAlice, childNftId, newOwnerNFT);
 
     await addNftBasicResource(
       api,
       Alice,
-      "added",
+      'added',
       collectionIdAlice,
       childNftId,
       src,
       metadata,
       license,
-      thumb
+      thumb,
     );
   });
 
@@ -91,9 +91,9 @@
     const collectionIdAlice = await createCollection(
       api,
       Alice,
-      "test-metadata",
+      'test-metadata',
       null,
-      "test-symbol"
+      'test-symbol',
     );
 
     const nftAlice = await mintNft(
@@ -101,14 +101,14 @@
       Alice,
       Alice,
       collectionIdAlice,
-      "nft-metadata"
+      'nft-metadata',
     );
 
     const baseId = 42;
     const slotId = 10;
     const parts = [0, 5, 2];
 
-    let resourcesInfo = [];
+    const resourcesInfo = [];
     const resourceNum = 4;
 
     const checkResource = async (resource: ResourceInfo, resType: string, expectedId: number, expected: {
@@ -144,38 +144,38 @@
         src: src + 'r-' + i,
         metadata: metadata + 'r-' + i,
         license: license + 'r-' + i,
-        thumb: thumb + 'r-' + i
+        thumb: thumb + 'r-' + i,
       });
     }
 
     const firstBasicResourceId = await addNftBasicResource(
       api,
       Alice,
-      "added",
+      'added',
       collectionIdAlice,
       nftAlice,
       resourcesInfo[0].src,
       resourcesInfo[0].metadata,
       resourcesInfo[0].license,
-      resourcesInfo[0].thumb
+      resourcesInfo[0].thumb,
     );
 
     const secondBasicResourceId = await addNftBasicResource(
       api,
       Alice,
-      "added",
+      'added',
       collectionIdAlice,
       nftAlice,
       resourcesInfo[1].src,
       resourcesInfo[1].metadata,
       resourcesInfo[1].license,
-      resourcesInfo[1].thumb
+      resourcesInfo[1].thumb,
     );
 
     const composableResourceId = await addNftComposableResource(
       api,
       Alice,
-      "added",
+      'added',
       collectionIdAlice,
       nftAlice,
       parts,
@@ -189,7 +189,7 @@
     const slotResourceId = await addNftSlotResource(
       api,
       Alice,
-      "added",
+      'added',
       collectionIdAlice,
       nftAlice,
       baseId,
@@ -197,7 +197,7 @@
       resourcesInfo[3].src,
       resourcesInfo[3].metadata,
       resourcesInfo[3].license,
-      resourcesInfo[3].thumb
+      resourcesInfo[3].thumb,
     );
 
     const firstResource = await getResourceById(api, collectionIdAlice, nftAlice, firstBasicResourceId);
@@ -217,21 +217,21 @@
     const collectionIdAlice = await createCollection(
       api,
       Alice,
-      "test-metadata",
+      'test-metadata',
       null,
-      "test-symbol"
+      'test-symbol',
     );
 
     const tx = addNftBasicResource(
       api,
       Alice,
-      "added",
+      'added',
       collectionIdAlice,
       nonexistentId,
       src,
       metadata,
       license,
-      thumb
+      thumb,
     );
   
     await expectTxFailure(/rmrkCore\.NoAvailableNftId/, tx);
@@ -241,9 +241,9 @@
     const collectionIdAlice = await createCollection(
       api,
       Alice,
-      "test-metadata",
+      'test-metadata',
       null,
-      "test-symbol"
+      'test-symbol',
     );
 
     const nftAlice = await mintNft(
@@ -251,19 +251,19 @@
       Alice,
       Alice,
       collectionIdAlice,
-      "nft-metadata"
+      'nft-metadata',
     );
 
     const tx = addNftBasicResource(
       api,
       Bob,
-      "added",
+      'added',
       collectionIdAlice,
       nftAlice,
       src,
       metadata,
       license,
-      thumb
+      thumb,
     );
   
     await expectTxFailure(/rmrkCore\.NoPermission/, tx);
@@ -273,113 +273,113 @@
     const collectionIdAlice = await createCollection(
       api,
       Alice,
-      "test-metadata",
+      'test-metadata',
       null,
-      "test-symbol"
+      '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 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 sendNft(api, 'sent', Alice, collectionIdAlice, childNftId, newOwnerNFT);
 
     const tx = addNftBasicResource(
       api,
       Bob,
-      "added",
+      'added',
       collectionIdAlice,
       childNftId,
       src,
       metadata,
       license,
-      thumb
+      thumb,
     );
     
     await expectTxFailure(/rmrkCore\.NoPermission/, tx);
   });
 
-  it("accept resource", async () => {
+  it('accept resource', async () => {
     const collectionIdBob = await createCollection(
       api,
       Bob,
-      "test-metadata",
+      'test-metadata',
       null,
-      "test-symbol"
+      'test-symbol',
     );
 
     const nftAlice = await mintNft(
-        api,
-        Bob,
-        Alice,
-        collectionIdBob,
-        "nft-metadata"
+      api,
+      Bob,
+      Alice,
+      collectionIdBob,
+      'nft-metadata',
     );
 
     const resourceId = await addNftBasicResource(
       api,
       Bob,
-      "pending",
+      'pending',
       collectionIdBob,
       nftAlice,
       src,
       metadata,
       license,
-      thumb
+      thumb,
     );
 
     await acceptNftResource(api, Alice, collectionIdBob, nftAlice, resourceId);
   });
 
-  it("[negative]: unable to accept a non-existing resource", async () => {
+  it('[negative]: unable to accept a non-existing resource', async () => {
     const collectionIdBob = await createCollection(
       api,
       Bob,
-      "test-metadata",
+      'test-metadata',
       null,
-      "test-symbol"
+      'test-symbol',
     );
 
     const nftAlice = await mintNft(
-        api,
-        Bob,
-        Alice,
-        collectionIdBob,
-        "nft-metadata"
+      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 () => {
+  it('[negative]: unable to accept a resource by a not-an-NFT-owner user', async () => {
     const collectionIdBob = await createCollection(
       api,
       Bob,
-      "test-metadata",
+      'test-metadata',
       null,
-      "test-symbol"
+      'test-symbol',
     );
 
     const nftAlice = await mintNft(
-        api,
-        Bob,
-        Alice,
-        collectionIdBob,
-        "nft-metadata"
+      api,
+      Bob,
+      Alice,
+      collectionIdBob,
+      'nft-metadata',
     );
 
     const resourceId = await addNftBasicResource(
       api,
       Bob,
-      "pending",
+      'pending',
       collectionIdBob,
       nftAlice,
       src,
       metadata,
       license,
-      thumb
+      thumb,
     );
 
     const tx = acceptNftResource(api, Bob, collectionIdBob, nftAlice, resourceId);
@@ -387,41 +387,41 @@
     await expectTxFailure(/rmrkCore\.NoPermission/, tx);
   });
 
-  it("[negative]: unable to accept a resource to a non-target NFT", async () => {
+  it('[negative]: unable to accept a resource to a non-target NFT', async () => {
     const collectionIdBob = await createCollection(
       api,
       Bob,
-      "test-metadata",
+      'test-metadata',
       null,
-      "test-symbol"
+      'test-symbol',
     );
 
     const nftAlice = await mintNft(
-        api,
-        Bob,
-        Alice,
-        collectionIdBob,
-        "nft-metadata"
+      api,
+      Bob,
+      Alice,
+      collectionIdBob,
+      'nft-metadata',
     );
 
     const wrongNft = await mintNft(
-        api,
-        Bob,
-        Alice,
-        collectionIdBob,
-        "nft-metadata"
+      api,
+      Bob,
+      Alice,
+      collectionIdBob,
+      'nft-metadata',
     );
     
     const resourceId = await addNftBasicResource(
       api,
       Bob,
-      "pending",
+      'pending',
       collectionIdBob,
       nftAlice,
       src,
       metadata,
       license,
-      thumb
+      thumb,
     );
 
     const tx = acceptNftResource(api, Bob, collectionIdBob, wrongNft, resourceId);
modifiedtests/src/rmrk/addTheme.test.tsdiffbeforeafterboth
--- a/tests/src/rmrk/addTheme.test.ts
+++ b/tests/src/rmrk/addTheme.test.ts
@@ -1,128 +1,126 @@
-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 {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';
 
-describe("integration test: add Theme to Base", () => {
-    let api: any;
-    before(async () => { api = await getApiConnection(); });
+describe('integration test: add Theme to Base', () => {
+  let api: any;
+  before(async () => { api = await getApiConnection(); });
 
-    const alice = "//Alice";
-    const bob = "//Bob";
+  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', 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('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',
+        },
+      ],
     });
-
-    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"]);
+    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 theme names", async() => {
-        const baseId = await createBase(api, alice, "3-themed-base", "3TBase", []);
-        const names = [
-            "default",
-            "first-theme",
-            "second-theme"
-        ];
+  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']);
+  });
 
-        for (var i = 0; i < names.length; i++) {
-            await addTheme(api, alice, baseId, { name: names[i], properties: [{ key: 'dummy', value: 'dummy' }] });
-        }
+  it('fetch theme names', async() => {
+    const baseId = await createBase(api, alice, '3-themed-base', '3TBase', []);
+    const names = [
+      'default',
+      'first-theme',
+      'second-theme',
+    ];
 
-        const fetchedNames = await getThemeNames(api, baseId);
+    for (var i = 0; i < names.length; i++) {
+      await addTheme(api, alice, baseId, {name: names[i], properties: [{key: 'dummy', value: 'dummy'}]});
+    }
 
-        for (var i = 0; i < names.length; i++) {
-            const isFound = fetchedNames.find(
-                (name) => name === names[i]
-            ) !== undefined;
+    const fetchedNames = await getThemeNames(api, baseId);
 
-            expect(isFound, "Error: invalid theme names").to.be.true;
-        }
-    });
+    for (var i = 0; i < names.length; i++) {
+      const isFound = fetchedNames.find((name) => name === names[i]) !== undefined;
 
-    it("[negative] unable to add theme to non-existing base", async () => {
-        const maxBaseId = 0xFFFFFFFF;
-        const tx = addTheme(api, alice, maxBaseId, {
-            name: "default",
-            properties: []
-        });
+      expect(isFound, 'Error: invalid theme names').to.be.true;
+    }
+  });
 
-        await expectTxFailure(/rmrkEquip\.BaseDoesntExist/, tx);
+  it('[negative] unable to add theme to non-existing base', async () => {
+    const maxBaseId = 0xFFFFFFFF;
+    const tx = addTheme(api, alice, maxBaseId, {
+      name: 'default',
+      properties: [],
     });
 
-    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\.BaseDoesntExist/, tx);
+  });
 
-        await expectTxFailure(/rmrkEquip\.NeedsDefaultThemeFirst/, 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: [],
     });
 
-    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\.NeedsDefaultThemeFirst/, tx);
+  });
 
-        await expectTxFailure(/rmrkEquip\.PermissionError/, 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: [],
     });
 
-    after(() => { api.disconnect(); });
+    await expectTxFailure(/rmrkEquip\.PermissionError/, tx);
+  });
+
+  after(() => { api.disconnect(); });
 });
modifiedtests/src/rmrk/burnNft.test.tsdiffbeforeafterboth
--- a/tests/src/rmrk/burnNft.test.ts
+++ b/tests/src/rmrk/burnNft.test.ts
@@ -1,7 +1,7 @@
-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 {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';
@@ -9,41 +9,41 @@
 chai.use(chaiAsPromised);
 const expect = chai.expect;
 
-describe("integration test: burn nft", () => {
-  const Alice = "//Alice";
-  const Bob = "//Bob";
+describe('integration test: burn nft', () => {
+  const Alice = '//Alice';
+  const Bob = '//Bob';
 
   let api: any;
   before(async () => {
     api = await getApiConnection();
   });
 
-  it("burn nft", async () => {
+  it('burn nft', async () => {
     await createCollection(
       api,
       Alice,
-      "test-metadata",
+      'test-metadata',
       null,
-      "test-symbol"
+      'test-symbol',
     ).then(async (collectionId) => {
       const nftId = await mintNft(
         api,
         Alice,
         Alice,
         collectionId,
-        "nft-metadata"
+        'nft-metadata',
       );
       await burnNft(api, Alice, collectionId, nftId);
     });
   });
 
-  it("burn nft with children", async () => {
+  it('burn nft with children', async () => {
     const collectionId = await createCollection(
       api,
       Alice,
-      "test-metadata",
+      'test-metadata',
       null,
-      "test-symbol"
+      'test-symbol',
     );
 
     const parentNftId = await mintNft(
@@ -51,7 +51,7 @@
       Alice,
       Alice,
       collectionId,
-      "nft-metadata"
+      'nft-metadata',
     );
 
     const childNftId = await mintNft(
@@ -59,18 +59,18 @@
       Alice,
       Alice,
       collectionId,
-      "nft-metadata"
+      'nft-metadata',
     );
 
     const newOwnerNFT: NftIdTuple = [collectionId, parentNftId];
 
-    await sendNft(api, "sent", Alice, collectionId, childNftId, newOwnerNFT);
+    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;
 
-    let child = childrenBefore[0];
+    const child = childrenBefore[0];
     expect(child.collectionId.eq(collectionId), 'Error: invalid child collection Id')
       .to.be.true;
 
@@ -84,13 +84,13 @@
     expect(childrenAfter.length === 0, 'Error: children should be burned').to.be.true;
   });
 
-  it("burn child nft", async () => {
+  it('burn child nft', async () => {
     const collectionId = await createCollection(
       api,
       Alice,
-      "test-metadata",
+      'test-metadata',
       null,
-      "test-symbol"
+      'test-symbol',
     );
 
     const parentNftId = await mintNft(
@@ -98,7 +98,7 @@
       Alice,
       Alice,
       collectionId,
-      "nft-metadata"
+      'nft-metadata',
     );
 
     const childNftId = await mintNft(
@@ -106,18 +106,18 @@
       Alice,
       Alice,
       collectionId,
-      "nft-metadata"
+      'nft-metadata',
     );
 
     const newOwnerNFT: NftIdTuple = [collectionId, parentNftId];
 
-    await sendNft(api, "sent", Alice, collectionId, childNftId, newOwnerNFT);
+    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;
 
-    let child = childrenBefore[0];
+    const child = childrenBefore[0];
     expect(child.collectionId.eq(collectionId), 'Error: invalid child collection Id')
       .to.be.true;
 
@@ -131,33 +131,33 @@
     expect(childrenAfter.length === 0, 'Error: children should be burned').to.be.true;
   });
 
-  it("[negative] burn non-existing NFT", async () => {
+  it('[negative] burn non-existing NFT', async () => {
     await createCollection(
       api,
       Alice,
-      "test-metadata",
+      'test-metadata',
       null,
-      "test-symbol"
+      '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 () => {
+  it('[negative] burn not an owner NFT user', async () => {
     await createCollection(
       api,
       Alice,
-      "test-metadata",
+      'test-metadata',
       null,
-      "test-symbol"
+      'test-symbol',
     ).then(async (collectionId) => {
       const nftId = await mintNft(
         api,
         Alice,
         Alice,
         collectionId,
-        "nft-metadata"
+        'nft-metadata',
       );
       const tx = burnNft(api, Bob, collectionId, nftId);
       await expectTxFailure(/rmrkCore\.NoPermission/, tx);
modifiedtests/src/rmrk/changeCollectionIssuer.test.tsdiffbeforeafterboth
--- a/tests/src/rmrk/changeCollectionIssuer.test.ts
+++ b/tests/src/rmrk/changeCollectionIssuer.test.ts
@@ -1,47 +1,45 @@
-import { getApiConnection } from "../substrate/substrate-api";
-import { expectTxFailure } from "./util/helpers";
+import {getApiConnection} from '../substrate/substrate-api';
+import {expectTxFailure} from './util/helpers';
 import {
   changeIssuer,
   createCollection,
-} from "./util/tx";
+} from './util/tx';
 
-describe("integration test: collection issuer", () => {
-  const Alice = "//Alice";
-  const Bob = "//Bob";
+describe('integration test: collection issuer', () => {
+  const Alice = '//Alice';
+  const Bob = '//Bob';
 
   let api: any;
   before(async () => {
     api = await getApiConnection();
   });
 
-  it("change collection issuer", async () => {
+  it('change collection issuer', async () => {
     await createCollection(
       api,
       Alice,
-      "test-metadata",
+      'test-metadata',
       null,
-      "test-symbol"
+      '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 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 () => {
+  it('[negative] change non-existigit NFT collection issuer', async () => {
     await createCollection(
       api,
       Alice,
-      "test-metadata",
+      'test-metadata',
       null,
-      "test-symbol"
+      'test-symbol',
     ).then(async () => {
       const tx = changeIssuer(api, Alice, 99999, Bob);
       await expectTxFailure(/rmrkCore\.CollectionUnknown/, tx);
modifiedtests/src/rmrk/createBase.test.tsdiffbeforeafterboth
--- a/tests/src/rmrk/createBase.test.ts
+++ b/tests/src/rmrk/createBase.test.ts
@@ -1,84 +1,84 @@
-import { getApiConnection } from '../substrate/substrate-api';
-import { createCollection, createBase } from "./util/tx";
+import {getApiConnection} from '../substrate/substrate-api';
+import {createCollection, createBase} from './util/tx';
 
-describe("integration test: create new Base", () => {
-    let api: any;
-    before(async () => { api = await getApiConnection(); });
+describe('integration test: create new Base', () => {
+  let api: any;
+  before(async () => { api = await getApiConnection(); });
 
-    const alice = '//Alice';
+  const alice = '//Alice';
 
-    it("create empty Base", async () => {
-        await createBase(api, alice, 'empty-base-type', 'EBase', []);
-    });
+  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 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 (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 (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"
-        );
+  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"
-        );
+    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"
-                }
-            }
-        ]);
-    });
+    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(); });
+  after(() => { api.disconnect(); });
 });
modifiedtests/src/rmrk/createCollection.test.tsdiffbeforeafterboth
--- a/tests/src/rmrk/createCollection.test.ts
+++ b/tests/src/rmrk/createCollection.test.ts
@@ -1,19 +1,19 @@
-import { getApiConnection } from '../substrate/substrate-api';
-import { createCollection } from './util/tx';
+import {getApiConnection} from '../substrate/substrate-api';
+import {createCollection} from './util/tx';
 
 describe('Integration test: create new collection', () => {
-    let api: any;
-    before(async () => { api = await getApiConnection(); });
+  let api: any;
+  before(async () => { api = await getApiConnection(); });
 
-    const alice = '//Alice';
+  const alice = '//Alice';
 
-    it('create NFT collection', async () => {
-        await createCollection(api, alice, 'test-metadata', 42, 'test-symbol');
-    });
+  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');
-    });
+  it('create NFT collection without token limit', async () => {
+    await createCollection(api, alice, 'no-limit-metadata', null, 'no-limit-symbol');
+  });
 
-    after(() => { api.disconnect(); });
+  after(() => { api.disconnect(); });
 });
modifiedtests/src/rmrk/deleteCollection.test.tsdiffbeforeafterboth
--- a/tests/src/rmrk/deleteCollection.test.ts
+++ b/tests/src/rmrk/deleteCollection.test.ts
@@ -1,40 +1,40 @@
-import { getApiConnection } from "../substrate/substrate-api";
-import { expectTxFailure } from "./util/helpers";
-import { createCollection, deleteCollection } from "./util/tx";
+import {getApiConnection} from '../substrate/substrate-api';
+import {expectTxFailure} from './util/helpers';
+import {createCollection, deleteCollection} from './util/tx';
 
-describe("integration test: delete collection", () => {
+describe('integration test: delete collection', () => {
   let api: any;
   before(async () => {
     api = await getApiConnection();
   });
 
-  const Alice = "//Alice";
-  const Bob = "//Bob";
+  const Alice = '//Alice';
+  const Bob = '//Bob';
 
-  it("delete NFT collection", async () => {
+  it('delete NFT collection', async () => {
     await createCollection(
       api,
       Alice,
-      "test-metadata",
+      'test-metadata',
       null,
-      "test-symbol"
+      '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");
+  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 () => {
+  it('[negative] delete not an owner NFT collection', async () => {
     await createCollection(
       api,
       Alice,
-      "test-metadata",
+      'test-metadata',
       null,
-      "test-symbol"
+      'test-symbol',
     ).then(async (collectionId) => {
       const tx = deleteCollection(api, Bob, collectionId.toString());
       await expectTxFailure(/uniques.NoPermission/, tx);
modifiedtests/src/rmrk/equipNft.test.tsdiffbeforeafterboth
--- a/tests/src/rmrk/equipNft.test.ts
+++ b/tests/src/rmrk/equipNft.test.ts
@@ -1,8 +1,8 @@
-import { ApiPromise } from "@polkadot/api";
-import { expect } from "chai";
-import { getApiConnection } from "../substrate/substrate-api";
-import { getNft, getParts, NftIdTuple } from "./util/fetch";
-import { expectTxFailure } from "./util/helpers";
+import {ApiPromise} from '@polkadot/api';
+import {expect} from 'chai';
+import {getApiConnection} from '../substrate/substrate-api';
+import {getNft, getParts, NftIdTuple} from './util/fetch';
+import {expectTxFailure} from './util/helpers';
 import {
   addNftComposableResource,
   addNftSlotResource,
@@ -11,11 +11,11 @@
   equipNft,
   mintNft,
   sendNft,
-  unequipNft
-} from "./util/tx";
+  unequipNft,
+} from './util/tx';
 
-const Alice = "//Alice";
-const Bob = "//Bob";
+const Alice = '//Alice';
+const Bob = '//Bob';
 
 const composableParts: number[] = [5, 2, 7];
 const composableSrc = 'test-cmp-src';
@@ -34,9 +34,9 @@
   return createCollection(
     api,
     Alice,
-    "test-metadata",
+    'test-metadata',
     null,
-    "test-symbol"
+    'test-symbol',
   );
 }
 
@@ -46,7 +46,7 @@
     Alice,
     Alice,
     collectionId,
-    "nft-metadata"
+    'nft-metadata',
   );
 }
 
@@ -55,17 +55,17 @@
 
   const parentNFT: NftIdTuple = [collectionId, parentNftId];
 
-  await sendNft(api, "sent", Alice, collectionId, nftChildId, parentNFT);
+  await sendNft(api, 'sent', Alice, collectionId, nftChildId, parentNFT);
 
   return nftChildId;
 }
 
 async function createTestBase(api: ApiPromise): Promise<number> {
-  return createBase(api, Alice, "test-base", "DTBase", [
+  return createBase(api, Alice, 'test-base', 'DTBase', [
     {
       SlotPart: {
         id: slotId,
-        equippable: "All",
+        equippable: 'All',
         z: 1,
         src: slotSrc,
       },
@@ -77,7 +77,7 @@
   await addNftComposableResource(
     api,
     Alice,
-    "added",
+    'added',
     collectionId,
     nftId,
     composableParts,
@@ -85,7 +85,7 @@
     composableSrc,
     composableMetadata,
     composableLicense,
-    composableThumb
+    composableThumb,
   );
 }
 
@@ -93,7 +93,7 @@
   return await addNftSlotResource(
     api,
     Alice,
-    "added",
+    'added',
     collectionId,
     nftId,
     baseId,
@@ -101,32 +101,32 @@
     slotSrc,
     slotMetadata,
     slotLicense,
-    slotThumb
+    slotThumb,
   );
 }
 
 async function checkEquipStatus(
   api: ApiPromise,
-  expectedStatus: "equipped" | "unequipped",
+  expectedStatus: 'equipped' | 'unequipped',
   collectionId: number,
-  nftId: 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");
+    .to.be.equal(expectedStatus === 'equipped');
 }
 
-describe("integration test: Equip NFT", () => {
+describe('integration test: Equip NFT', () => {
 
   let api: any;
   before(async () => {
     api = await getApiConnection();
   });
 
-  it("equip nft", async () => {
+  it('equip nft', async () => {
     const collectionId = await createTestCollection(api);
     const nftParentId = await mintTestNft(api, collectionId);
     const nftChildId = await mintChildNft(api, collectionId, nftParentId);
@@ -141,10 +141,10 @@
 
     await equipNft(api, Alice, itemNFT, equipperNFT, resourceId, baseId, slotId);
 
-    await checkEquipStatus(api, "equipped", collectionId, nftChildId);
+    await checkEquipStatus(api, 'equipped', collectionId, nftChildId);
   });
 
-  it("unequip nft", async () => {
+  it('unequip nft', async () => {
     const collectionId = await createTestCollection(api);
     const nftParentId = await mintTestNft(api, collectionId);
     const nftChildId = await mintChildNft(api, collectionId, nftParentId);
@@ -159,13 +159,13 @@
 
     await equipNft(api, Alice, itemNFT, equipperNFT, resourceId, baseId, slotId);
 
-    await checkEquipStatus(api, "equipped", collectionId, nftChildId);
+    await checkEquipStatus(api, 'equipped', collectionId, nftChildId);
 
     await unequipNft(api, Alice, itemNFT, equipperNFT, resourceId, baseId, slotId);
-    await checkEquipStatus(api, "unequipped", collectionId, nftChildId);
+    await checkEquipStatus(api, 'unequipped', collectionId, nftChildId);
   });
 
-  it("[negative] equip NFT onto non-existing NFT", async () => {
+  it('[negative] equip NFT onto non-existing NFT', async () => {
     const collectionId = await createTestCollection(api);
 
     const nftChildId = await mintNft(
@@ -173,7 +173,7 @@
       Alice,
       Alice,
       collectionId,
-      "nft-metadata"
+      'nft-metadata',
     );
 
     const itemNFT: NftIdTuple = [collectionId, nftChildId];
@@ -186,14 +186,14 @@
     await expectTxFailure(/rmrkCore\.NoAvailableNftId/, tx);
   });
 
-  it("[negative] equip non-existing NFT", async () => {
+  it('[negative] equip non-existing NFT', async () => {
     const collectionId = await createTestCollection(api);
     const nftParentId = await mintNft(
       api,
       Alice,
       Alice,
       collectionId,
-      "nft-metadata"
+      'nft-metadata',
     );
 
     const baseId = await createTestBase(api);
@@ -209,7 +209,7 @@
     await expectTxFailure(/rmrkCore\.NoAvailableNftId/, tx);
   });
 
-  it("[negative] equip NFT by a not-an-owner user", async () => {
+  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);
@@ -227,7 +227,7 @@
     await expectTxFailure(/rmrkEquip\.PermissionError/, tx);
   });
 
-  it("[negative] unable to equip NFT onto indirect parent NFT", async () => {
+  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);
@@ -245,7 +245,7 @@
     await expectTxFailure(/rmrkEquip\.MustBeDirectParent/, tx);
   });
 
-  it("[negative] unable to equip NFT onto parent NFT with another base", async () => {
+  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);
@@ -264,7 +264,7 @@
     await expectTxFailure(/rmrkEquip\.NoResourceForThisBaseFoundOnNft/, tx);
   });
 
-  it("[negative] unable to equip NFT into slot with another id", async () => {
+  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);
@@ -282,16 +282,16 @@
     await expectTxFailure(/rmrkEquip\.ItemHasNoResourceToEquipThere/, tx);
   });
 
-  it("[negative] unable to equip NFT with incorrect slot (fixed part)", async () => {
+  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", [
+    const baseId = await createBase(api, Alice, 'test-base', 'DTBase', [
       {
         FixedPart: {
           id: slotId,
-          equippable: "All",
+          equippable: 'All',
           z: 1,
           src: slotSrc,
         },
@@ -308,17 +308,17 @@
     await expectTxFailure(/rmrkEquip\.CantEquipFixedPart/, tx);
   });
 
-  it("[negative] unable to equip NFT from a collection that is not allowed by the slot", async () => {
+  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", [
+    const baseId = await createBase(api, Alice, 'test-base', 'DTBase', [
       {
         SlotPart: {
           id: 1,
           z: 1,
-          equippable: "Empty",
+          equippable: 'Empty',
           src: slotSrc,
         },
       },
modifiedtests/src/rmrk/getOwnedNfts.test.tsdiffbeforeafterboth
--- a/tests/src/rmrk/getOwnedNfts.test.ts
+++ b/tests/src/rmrk/getOwnedNfts.test.ts
@@ -1,74 +1,74 @@
-import { expect } from 'chai';
-import { getApiConnection } from '../substrate/substrate-api';
-import { getOwnedNfts } from './util/fetch';
-import { mintNft, createCollection } from './util/tx';
+import {expect} from 'chai';
+import {getApiConnection} from '../substrate/substrate-api';
+import {getOwnedNfts} from './util/fetch';
+import {mintNft, createCollection} from './util/tx';
 
-describe("integration test: get owned NFTs", () => {
-    let api: any;
-    before(async () => { api = await getApiConnection(); });
+describe('integration test: get owned NFTs', () => {
+  let api: any;
+  before(async () => { api = await getApiConnection(); });
 
-    const alice = '//Alice';
+  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';
+  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';
 
-        let collectionId = await createCollection(
-            api,
-            alice,
-            collectionMetadata,
-            collectionMax,
-            collectionSymbol
-        );
+    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 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 ownedNfts = await getOwnedNfts(api, alice, collectionId);
 
-        const isFound = (nftId: number) => {
-            return ownedNfts.find((ownedNftId) => {
-                return ownedNftId === nftId
-            }) !== undefined;
-        };
+    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
-        });
+    nftIds.forEach((nftId) => {
+      expect(isFound(nftId), `NFT ${nftId} should be owned by ${alice}`)
+        .to.be.true;
     });
+  });
 
-    after(() => { api.disconnect(); });
+  after(() => { api.disconnect(); });
 });
modifiedtests/src/rmrk/lockCollection.test.tsdiffbeforeafterboth
--- a/tests/src/rmrk/lockCollection.test.ts
+++ b/tests/src/rmrk/lockCollection.test.ts
@@ -1,10 +1,10 @@
-import { getApiConnection } from "../substrate/substrate-api";
-import { expectTxFailure } from "./util/helpers";
-import { createCollection, lockCollection, mintNft } from "./util/tx";
+import {getApiConnection} from '../substrate/substrate-api';
+import {expectTxFailure} from './util/helpers';
+import {createCollection, lockCollection, mintNft} from './util/tx';
 
-describe("integration test: lock collection", () => {
-  const Alice = "//Alice";
-  const Bob = "//Bob";
+describe('integration test: lock collection', () => {
+  const Alice = '//Alice';
+  const Bob = '//Bob';
   const Max = 5;
 
   let api: any;
@@ -12,43 +12,43 @@
     api = await getApiConnection();
   });
 
-  it("lock collection", async () => {
+  it('lock collection', async () => {
     await createCollection(
       api,
       Alice,
-      "test-metadata",
+      'test-metadata',
       null,
-      "test-symbol"
+      'test-symbol',
     ).then(async (collectionId) => {
       await lockCollection(api, Alice, collectionId);
     });
   });
 
-  it("[negative] lock non-existing NFT collection", async () => {
+  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 () => {
+  it('[negative] lock not an owner NFT collection issuer', async () => {
     await createCollection(
       api,
       Alice,
-      "test-metadata",
+      'test-metadata',
       null,
-      "test-symbol"
+      'test-symbol',
     ).then(async (collectionId) => {
       const tx = lockCollection(api, Bob, collectionId);
       await expectTxFailure(/rmrkCore\.NoPermission/, tx);
     });
   });
 
-  it("lock collection with minting", async () => {
+  it('lock collection with minting', async () => {
     await createCollection(
       api,
       Alice,
-      "test-metadata",
+      'test-metadata',
       Max,
-      "test-symbol"
+      'test-symbol',
     ).then(async (collectionId) => {
       for (let i = 0; i < 5; i++) {
         await mintNft(
@@ -56,22 +56,22 @@
           Alice,
           Alice,
           collectionId,
-          "test-metadata",
+          'test-metadata',
+          null,
           null,
-          null
         );
       }
       await lockCollection(api, Alice, collectionId, Max);
     });
   });
 
-  it("[negative] unable to mint NFT inside a locked collection", async () => {
+  it('[negative] unable to mint NFT inside a locked collection', async () => {
     await createCollection(
       api,
       Alice,
-      "test-metadata",
+      'test-metadata',
       Max,
-      "test-symbol"
+      'test-symbol',
     ).then(async (collectionId) => {
       await lockCollection(api, Alice, collectionId);
       const tx = mintNft(
@@ -79,38 +79,36 @@
         Alice,
         Alice,
         collectionId,
-        "test-metadata",
+        'test-metadata',
+        null,
         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);
-      }
-    );
+  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(() => {
modifiedtests/src/rmrk/mintNft.test.tsdiffbeforeafterboth
--- a/tests/src/rmrk/mintNft.test.ts
+++ b/tests/src/rmrk/mintNft.test.ts
@@ -1,204 +1,206 @@
-import { expect } from 'chai';
-import { getApiConnection } from '../substrate/substrate-api';
-import { getNft } from './util/fetch';
-import { expectTxFailure } from './util/helpers';
-import { createCollection, mintNft } from './util/tx';
+import {expect} from 'chai';
+import {getApiConnection} from '../substrate/substrate-api';
+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 () => { api = await getApiConnection(); });
+describe('integration test: mint new NFT', () => {
+  let api: any;
+  before(async () => { api = await getApiConnection(); });
 
-    const alice = '//Alice';
-    const bob = '//Bob';
-    const maxCollectionId = 0xFFFFFFFF;
-    const maxNftId = 0xFFFFFFFF;
+  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';
+  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';
 
-        let collectionId = await createCollection(
-            api,
-            alice,
-            collectionMetadata,
-            collectionMax,
-            collectionSymbol
-        );
+    const collectionId = await createCollection(
+      api,
+      alice,
+      collectionMetadata,
+      collectionMax,
+      collectionSymbol,
+    );
 
-        await mintNft(
-            api,
-            alice,
-            owner,
-            collectionId,
-            nftMetadata,
-            recipientUri,
-            royalty
-        );
-    });
+    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';
+  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';
 
-        let collectionId = await createCollection(
-            api,
-            alice,
-            collectionMetadata,
-            collectionMax,
-            collectionSymbol
-        );
+    const collectionId = await createCollection(
+      api,
+      alice,
+      collectionMetadata,
+      collectionMax,
+      collectionSymbol,
+    );
 
-        await mintNft(
-            api,
-            alice,
-            owner,
-            collectionId,
-            nftMetadata,
-            recipientUri,
-            royalty
-        );
-    });
+    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';
+  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';
 
-        let collectionId = await createCollection(
-            api,
-            alice,
-            collectionMetadata,
-            collectionMax,
-            collectionSymbol
-        );
+    const collectionId = await createCollection(
+      api,
+      alice,
+      collectionMetadata,
+      collectionMax,
+      collectionSymbol,
+    );
 
-        await mintNft(
-            api,
-            alice,
-            owner,
-            collectionId,
-            nftMetadata,
-            recipientUri,
-            royalty
-        );
-    });
+    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,
-            }
-          }
-        ];
+  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,
+        },
+      },
+    ];
 
-        let collectionId = await createCollection(
-            api,
-            alice,
-            collectionMetadata,
-            collectionMax,
-            collectionSymbol
-        );
+    const collectionId = await createCollection(
+      api,
+      alice,
+      collectionMetadata,
+      collectionMax,
+      collectionSymbol,
+    );
 
-        await mintNft(
-            api,
-            alice,
-            owner,
-            collectionId,
-            nftMetadata,
-            null, null, true,
-            resources
-        );
-    });
+    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";
+  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
-      );
+    const tx = mintNft(
+      api,
+      alice,
+      owner,
+      maxCollectionId,
+      nftMetadata,
+      recipientUri,
+      royalty,
+    );
 
-      await expectTxFailure(/rmrkCore\.CollectionUnknown/, tx);
-    });
+    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";
+  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';
 
-      let collectionId = await createCollection(
-        api,
-        alice,
-        collectionMetadata,
-        collectionMax,
-        collectionSymbol
-      );
+    const collectionId = await createCollection(
+      api,
+      alice,
+      collectionMetadata,
+      collectionMax,
+      collectionSymbol,
+    );
 
-      const tx = mintNft(
-        api,
-        bob,
-        owner,
-        collectionId,
-        nftMetadata,
-        recipientUri,
-        royalty
-      );
+    const tx = mintNft(
+      api,
+      bob,
+      owner,
+      collectionId,
+      nftMetadata,
+      recipientUri,
+      royalty,
+    );
 
-      await expectTxFailure(/rmrkCore\.NoPermission/, tx);
-    });
+    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;
-    });
+  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(); });
+  after(() => { api.disconnect(); });
 });
modifiedtests/src/rmrk/rejectNft.test.tsdiffbeforeafterboth
--- a/tests/src/rmrk/rejectNft.test.ts
+++ b/tests/src/rmrk/rejectNft.test.ts
@@ -1,89 +1,89 @@
-import { expect } from "chai";
-import { getApiConnection } from "../substrate/substrate-api";
+import {expect} from 'chai';
+import {getApiConnection} from '../substrate/substrate-api';
 import {
-    createCollection,
-    mintNft,
-    sendNft,
-    rejectNft
-} from "./util/tx";
-import { getChildren, NftIdTuple } from "./util/fetch";
-import { isNftChildOfAnother, expectTxFailure } from "./util/helpers";
+  createCollection,
+  mintNft,
+  sendNft,
+  rejectNft,
+} from './util/tx';
+import {getChildren, NftIdTuple} from './util/fetch';
+import {isNftChildOfAnother, expectTxFailure} from './util/helpers';
 
-describe("integration test: reject NFT", () => {
-    let api: any;
-    before(async () => { api = await getApiConnection(); });
+describe('integration test: reject NFT', () => {
+  let api: any;
+  before(async () => { api = await getApiConnection(); });
 
-    const alice = "//Alice";
-    const bob = "//Bob";
+  const alice = '//Alice';
+  const bob = '//Bob';
 
-    const createTestCollection = async (issuerUri: string) => {
-        return await createCollection(
-            api,
-            issuerUri,
-            "reject-metadata",
-            null,
-            "rjct"
-        );
-    }
+  const createTestCollection = async (issuerUri: string) => {
+    return await createCollection(
+      api,
+      issuerUri,
+      'reject-metadata',
+      null,
+      'rjct',
+    );
+  };
 
-    it("reject NFT", async () => {
-        const ownerAlice = alice;
-        const ownerBob = bob;
+  it('reject NFT', async () => {
+    const ownerAlice = alice;
+    const ownerBob = bob;
 
-        const aliceCollectionId = await createTestCollection(alice);
-        const bobCollectionId = await createTestCollection(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 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 newOwnerNFT: NftIdTuple = [aliceCollectionId, parentNftId];
 
-        await sendNft(api, "pending", ownerBob, bobCollectionId, childNftId, newOwnerNFT);
-        await rejectNft(api, alice, bobCollectionId, childNftId);
+    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;
-    });
+    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;
+  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 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 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 newOwnerNFT: NftIdTuple = [aliceCollectionId, parentNftId];
 
-        await sendNft(api, "pending", ownerBob, bobCollectionId, childNftId, newOwnerNFT);
-        const tx = rejectNft(api, bob, bobCollectionId, childNftId);
+    await sendNft(api, 'pending', ownerBob, bobCollectionId, childNftId, newOwnerNFT);
+    const tx = rejectNft(api, bob, bobCollectionId, childNftId);
 
-        await expectTxFailure(/rmrkCore\.CannotRejectNonOwnedNft/, tx);
-    });
+    await expectTxFailure(/rmrkCore\.CannotRejectNonOwnedNft/, tx);
+  });
 
-    it("[negative] unable to reject non-existing NFT", async () => {
-        const maxNftId = 0xFFFFFFFF;
+  it('[negative] unable to reject non-existing NFT', async () => {
+    const maxNftId = 0xFFFFFFFF;
 
-        const collectionId = await createTestCollection(alice);
+    const collectionId = await createTestCollection(alice);
 
-        const tx = rejectNft(api, alice, collectionId, maxNftId);
+    const tx = rejectNft(api, alice, collectionId, maxNftId);
 
-        await expectTxFailure(/rmrkCore\.NoAvailableNftId/, tx);
-    });
+    await expectTxFailure(/rmrkCore\.NoAvailableNftId/, tx);
+  });
 
-    it("[negative] unable to reject NFT which is not sent", async () => {
-        const ownerAlice = alice;
+  it('[negative] unable to reject NFT which is not sent', async () => {
+    const ownerAlice = alice;
 
-        const collectionId = await createTestCollection(alice);
+    const collectionId = await createTestCollection(alice);
 
-        const nftId = await mintNft(api, alice, ownerAlice, collectionId, "parent-nft-metadata");
+    const nftId = await mintNft(api, alice, ownerAlice, collectionId, 'parent-nft-metadata');
 
-        const tx = rejectNft(api, alice, collectionId, nftId);
+    const tx = rejectNft(api, alice, collectionId, nftId);
 
-        await expectTxFailure(/rmrkCore\.CannotRejectNonPendingNft/, tx);
-    });
+    await expectTxFailure(/rmrkCore\.CannotRejectNonPendingNft/, tx);
+  });
 
-    after(() => { api.disconnect(); });
+  after(() => { api.disconnect(); });
 });
modifiedtests/src/rmrk/removeResource.test.tsdiffbeforeafterboth
--- a/tests/src/rmrk/removeResource.test.ts
+++ b/tests/src/rmrk/removeResource.test.ts
@@ -1,348 +1,348 @@
-import { expect } from 'chai';
-import privateKey from "../substrate/privateKey";
-import { executeTransaction, getApiConnection } from '../substrate/substrate-api';
-import { getNft, NftIdTuple } from './util/fetch';
-import { expectTxFailure } from './util/helpers';
+import {expect} from 'chai';
+import privateKey from '../substrate/privateKey';
+import {executeTransaction, getApiConnection} from '../substrate/substrate-api';
+import {getNft, NftIdTuple} from './util/fetch';
+import {expectTxFailure} from './util/helpers';
 import {
   acceptNft, acceptResourceRemoval, addNftBasicResource,
   createBase,
   createCollection,
-  mintNft, removeNftResource, sendNft
-} from "./util/tx";
+  mintNft, removeNftResource, sendNft,
+} from './util/tx';
 
 
 
 
 describe('Integration test: remove nft resource', () => {
-    let api: any;
-    let ss58Format: string;
-    before(async () => {
-      api = await getApiConnection();
-      ss58Format = api.registry.getChainProperties()!.toJSON().ss58Format;
-    });
+  let api: any;
+  let ss58Format: string;
+  before(async () => {
+    api = await getApiConnection();
+    ss58Format = api.registry.getChainProperties()!.toJSON().ss58Format;
+  });
 
-    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";
+  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"
-        );
+  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 nftAlice = await mintNft(
+      api,
+      Alice,
+      Alice,
+      collectionIdAlice,
+      'nft-metadata',
+    );
 
-        const resourceId = await addNftBasicResource(
-            api,
-            Alice,
-            "added",
-            collectionIdAlice,
-            nftAlice,
-            src,
-            metadata,
-            license,
-            thumb
-        );
+    const resourceId = await addNftBasicResource(
+      api,
+      Alice,
+      'added',
+      collectionIdAlice,
+      nftAlice,
+      src,
+      metadata,
+      license,
+      thumb,
+    );
 
-        await removeNftResource(api, 'removed', Alice, collectionIdAlice, nftAlice, resourceId);
-    });
+    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"
-        );
+  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 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 resourceId = await addNftBasicResource(
+      api,
+      Alice,
+      'added',
+      collectionIdAlice,
+      childNftId,
+      src,
+      metadata,
+      license,
+      thumb,
+    );
 
-        const newOwnerNFT: NftIdTuple = [collectionIdAlice, parentNftId];
+    const newOwnerNFT: NftIdTuple = [collectionIdAlice, parentNftId];
 
-        await sendNft(api, "sent", Alice, collectionIdAlice, childNftId, newOwnerNFT);
+    await sendNft(api, 'sent', Alice, collectionIdAlice, childNftId, newOwnerNFT);
 
-        await removeNftResource(api, 'removed', Alice, collectionIdAlice, childNftId, resourceId);
-    });
+    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"
-        );
+  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 nftBob = await mintNft(
+      api,
+      Alice,
+      Bob,
+      collectionIdAlice,
+      'nft-metadata',
+    );
 
-        const resourceId = await addNftBasicResource(
-            api,
-            Alice,
-            "pending",
-            collectionIdAlice,
-            nftBob,
-            src,
-            metadata,
-            license,
-            thumb
-        );
+    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);
-    });
+    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"
-        );
+  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 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 resourceId = await addNftBasicResource(
+      api,
+      Alice,
+      'pending',
+      collectionIdAlice,
+      childNftId,
+      src,
+      metadata,
+      license,
+      thumb,
+    );
 
-        const newOwnerNFT: NftIdTuple = [collectionIdAlice, parentNftId];
+    const newOwnerNFT: NftIdTuple = [collectionIdAlice, parentNftId];
 
-        await sendNft(api, "sent", Bob, collectionIdAlice, childNftId, newOwnerNFT);
+    await sendNft(api, 'sent', Bob, collectionIdAlice, childNftId, newOwnerNFT);
 
-        await removeNftResource(api, 'pending', Alice, collectionIdAlice, childNftId, resourceId);
-        await acceptResourceRemoval(api, Bob, collectionIdAlice, childNftId, resourceId);
-    });
+    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"
-        );
+  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 nftAlice = await mintNft(
+      api,
+      Alice,
+      Alice,
+      collectionIdAlice,
+      'nft-metadata',
+    );
 
-        const resourceId = await addNftBasicResource(
-            api,
-            Alice,
-            "added",
-            collectionIdAlice,
-            nftAlice,
-            src,
-            metadata,
-            license,
-            thumb
-        );
+    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)
-    });
+    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"
-        );
+  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 nftAlice = await mintNft(
+      api,
+      Alice,
+      Alice,
+      collectionIdAlice,
+      'nft-metadata',
+    );
 
-        const resourceId = await addNftBasicResource(
-            api,
-            Alice,
-            "added",
-            collectionIdAlice,
-            nftAlice,
-            src,
-            metadata,
-            license,
-            thumb
-        );
+    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);
-    });
+    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"
-        );
+  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 nftAlice = await mintNft(
+      api,
+      Alice,
+      Alice,
+      collectionIdAlice,
+      'nft-metadata',
+    );
 
-        const tx = removeNftResource(api, 'removed', Alice, collectionIdAlice, nftAlice, 127);
-        await expectTxFailure(/rmrkCore\.ResourceDoesntExist/, tx);
-    });
+    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"
-        );
+  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 nftBob = await mintNft(
+      api,
+      Alice,
+      Bob,
+      collectionIdAlice,
+      'nft-metadata',
+    );
 
-        const resourceId = await addNftBasicResource(
-            api,
-            Alice,
-            "pending",
-            collectionIdAlice,
-            nftBob,
-            src,
-            metadata,
-            license,
-            thumb
-        );
+    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);
-    });
+    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"
-        );
+  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 nftBob = await mintNft(
+      api,
+      Alice,
+      Bob,
+      collectionIdAlice,
+      'nft-metadata',
+    );
 
-        const tx = acceptResourceRemoval(api, Bob, collectionIdAlice, nftBob, 127);
-        await expectTxFailure(/rmrkCore\.ResourceDoesntExist/, tx);
-    });
+    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"
-        );
+  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 nftAlice = await mintNft(
+      api,
+      Alice,
+      Alice,
+      collectionIdAlice,
+      'nft-metadata',
+    );
 
-        const resourceId = await addNftBasicResource(
-            api,
-            Alice,
-            "added",
-            collectionIdAlice,
-            nftAlice,
-            src,
-            metadata,
-            license,
-            thumb
-        );
+    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);
-    });
+    const tx = acceptResourceRemoval(api, Bob, collectionIdAlice, nftAlice, resourceId);
+    await expectTxFailure(/rmrkCore\.NoPermission/, tx);
+  });
 
-    after(() => {
-        api.disconnect();
-    });
+  after(() => {
+    api.disconnect();
+  });
 });
modifiedtests/src/rmrk/sendNft.test.tsdiffbeforeafterboth
--- a/tests/src/rmrk/sendNft.test.ts
+++ b/tests/src/rmrk/sendNft.test.ts
@@ -1,252 +1,252 @@
-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 {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';
 
-describe("integration test: send NFT", () => {
-    let api: any;
-    before(async () => { api = await getApiConnection(); });
+describe('integration test: send NFT', () => {
+  let api: any;
+  before(async () => { api = await getApiConnection(); });
 
-    const maxNftId = 0xFFFFFFFF;
+  const maxNftId = 0xFFFFFFFF;
 
-    const alice = "//Alice";
-    const bob = "//Bob";
+  const alice = '//Alice';
+  const bob = '//Bob';
 
-    const createTestCollection = async (issuerUri: string) => {
-        return await createCollection(
-            api,
-            issuerUri,
-            "nft-collection-metadata",
-            null,
-            "nft-collection"
-        );
-    };
+  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;
+  it('send NFT to another user', async () => {
+    const originalOwnerUri = alice;
+    const newOwnerUri = bob;
 
-        const collectionId = await createTestCollection(alice);
+    const collectionId = await createTestCollection(alice);
 
-        const nftId = await mintNft(api, alice, originalOwnerUri, collectionId, "nft-metadata");
+    const nftId = await mintNft(api, alice, originalOwnerUri, collectionId, 'nft-metadata');
 
-        await sendNft(api, "sent", originalOwnerUri, collectionId, nftId, newOwnerUri);
-    });
+    await sendNft(api, 'sent', originalOwnerUri, collectionId, nftId, newOwnerUri);
+  });
 
-    it("[negative] unable to send non-existing NFT", async () => {
-        const originalOwnerUri = alice;
-        const newOwnerUri = bob;
+  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);
+    const collectionId = 0;
+    const tx = sendNft(api, 'sent', originalOwnerUri, collectionId, maxNftId, newOwnerUri);
 
-        await expectTxFailure(/rmrkCore\.NoAvailableNftId/, tx);
-    });
+    await expectTxFailure(/rmrkCore\.NoAvailableNftId/, tx);
+  });
 
-    it("[negative] unable to send NFT by a not-an-owner", async () => {
-        const originalOwnerUri = alice;
-        const newOwnerUri = bob;
+  it('[negative] unable to send NFT by a not-an-owner', async () => {
+    const originalOwnerUri = alice;
+    const newOwnerUri = bob;
 
-        const collectionId = await createTestCollection(alice);
+    const collectionId = await createTestCollection(alice);
 
-        const nftId = await mintNft(api, alice, originalOwnerUri, collectionId, "nft-metadata");
+    const nftId = await mintNft(api, alice, originalOwnerUri, collectionId, 'nft-metadata');
 
-        const tx = sendNft(api, "sent", newOwnerUri, collectionId, nftId, newOwnerUri);
-        await expectTxFailure(/rmrkCore\.NoPermission/, tx);
-    });
+    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;
+  it('send NFT to another NFT (same owner)', async () => {
+    const originalOwnerUri = alice;
 
-        const collectionId = await createTestCollection(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 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];
+    const newOwnerNFT: NftIdTuple = [collectionId, parentNftId];
 
-        await sendNft(api, "sent", alice, collectionId, childNftId, newOwnerNFT);
+    await sendNft(api, 'sent', alice, collectionId, childNftId, newOwnerNFT);
 
-        const isChild = await isNftChildOfAnother(api, collectionId, childNftId, newOwnerNFT);
-        expect(isChild).to.be.true;
-    });
+    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;
+  it('[negative] send non-existing NFT to another NFT', async () => {
+    const originalOwnerUri = alice;
 
-        const collectionId = await createTestCollection(alice);
+    const collectionId = await createTestCollection(alice);
 
-        const parentNftId = await mintNft(api, alice, originalOwnerUri, collectionId, "parent-nft-metadata");
-        const childNftId = maxNftId;
+    const parentNftId = await mintNft(api, alice, originalOwnerUri, collectionId, 'parent-nft-metadata');
+    const childNftId = maxNftId;
 
-        const newOwnerNFT: NftIdTuple = [collectionId, parentNftId];
+    const newOwnerNFT: NftIdTuple = [collectionId, parentNftId];
 
-        const tx = sendNft(api, "sent", alice, collectionId, childNftId, newOwnerNFT);
+    const tx = sendNft(api, 'sent', alice, collectionId, childNftId, newOwnerNFT);
 
-        await expectTxFailure(/rmrkCore\.NoAvailableNftId/, tx);
+    await expectTxFailure(/rmrkCore\.NoAvailableNftId/, tx);
 
-        const isChild = await isNftChildOfAnother(api, collectionId, childNftId, newOwnerNFT);
-        expect(isChild).to.be.false;
-    });
+    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;
+  it('send NFT to another NFT (by not-an-owner)', async () => {
+    const originalOwnerUri = alice;
 
-        const collectionId = await createTestCollection(alice);
+    const collectionId = await createTestCollection(alice);
 
-        const author = alice;
-        const attacker = bob;
+    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 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 newOwnerNFT: NftIdTuple = [collectionId, parentNftId];
 
-        const tx = sendNft(api, "sent", attacker, collectionId, childNftId, newOwnerNFT);
+    const tx = sendNft(api, 'sent', attacker, collectionId, childNftId, newOwnerNFT);
 
-        await expectTxFailure(/rmrkCore\.NoPermission/, tx);
+    await expectTxFailure(/rmrkCore\.NoPermission/, tx);
 
-        const isChild = await isNftChildOfAnother(api, collectionId, childNftId, newOwnerNFT);
-        expect(isChild).to.be.false;
-    });
+    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;
+  it('[negative] send NFT to non-existing NFT', async () => {
+    const originalOwnerUri = alice;
 
-        const collectionId = await createTestCollection(alice);
+    const collectionId = await createTestCollection(alice);
 
-        const parentNftId = maxNftId;
-        const childNftId = await mintNft(api, alice, originalOwnerUri, collectionId, "child-nft-metadata");
+    const parentNftId = maxNftId;
+    const childNftId = await mintNft(api, alice, originalOwnerUri, collectionId, 'child-nft-metadata');
 
-        const newOwnerNFT: NftIdTuple = [collectionId, parentNftId];
+    const newOwnerNFT: NftIdTuple = [collectionId, parentNftId];
 
-        const tx = sendNft(api, "sent", alice, collectionId, childNftId, newOwnerNFT);
+    const tx = sendNft(api, 'sent', alice, collectionId, childNftId, newOwnerNFT);
 
-        await expectTxFailure(/rmrkCore\.NoAvailableNftId/, tx);
+    await expectTxFailure(/rmrkCore\.NoAvailableNftId/, tx);
 
-        const isChild = await isNftChildOfAnother(api, collectionId, childNftId, newOwnerNFT);
-        expect(isChild).to.be.false;
-    });
+    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;
+  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 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 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 newOwnerNFT: NftIdTuple = [aliceCollectionId, parentNftId];
 
-        await sendNft(api, "pending", bob, bobCollectionId, childNftId, newOwnerNFT);
-    });
+    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);
+  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 nftId = await mintNft(api, alice, nftOwner, collectionId, 'ouroboros-nft-metadata');
 
-        const newOwnerNFT: NftIdTuple = [collectionId, nftId];
+    const newOwnerNFT: NftIdTuple = [collectionId, nftId];
 
-        const tx = sendNft(api, "sent", alice, collectionId, nftId, newOwnerNFT);
+    const tx = sendNft(api, 'sent', alice, collectionId, nftId, newOwnerNFT);
 
-        await expectTxFailure(/rmrkCore\.CannotSendToDescendentOrSelf/, tx);
+    await expectTxFailure(/rmrkCore\.CannotSendToDescendentOrSelf/, tx);
 
-        const isChild = await isNftChildOfAnother(api, collectionId, nftId, newOwnerNFT);
-        expect(isChild).to.be.false;
-    });
+    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;
+  it('[negative] unable to send NFT to child NFT', async () => {
+    const originalOwnerUri = alice;
 
-        const collectionId = await createTestCollection(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 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];
+    const newOwnerNFT: NftIdTuple = [collectionId, parentNftId];
 
-        await sendNft(api, "sent", alice, collectionId, childNftId, newOwnerNFT);
+    await sendNft(api, 'sent', alice, collectionId, childNftId, newOwnerNFT);
 
-        const isChild = await isNftChildOfAnother(api, collectionId, childNftId, newOwnerNFT);
-        expect(isChild).to.be.true;
+    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);
+    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;
-    });
+    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;
+  it('[negative] unable to send NFT to descendent NFT', async () => {
+    const originalOwnerUri = alice;
 
-        const collectionId = await createTestCollection(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 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];
+    const ownerParentNFT: NftIdTuple = [collectionId, parentNftId];
 
-        await sendNft(api, "sent", alice, collectionId, childNftId, ownerParentNFT);
+    await sendNft(api, 'sent', alice, collectionId, childNftId, ownerParentNFT);
 
-        const isChild = await isNftChildOfAnother(api, collectionId, childNftId, ownerParentNFT);
-        expect(isChild).to.be.true;
+    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 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 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);
+    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;
-    });
+    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;
+  it('send nested NFT to another user', async () => {
+    const originalOwner = alice;
+    const newOwner = bob;
 
-        const collectionId = await createTestCollection(alice);
+    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 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];
+    const parentNftTuple: NftIdTuple = [collectionId, parentNftId];
 
-        await sendNft(api, "sent", originalOwner, collectionId, childNftId, parentNftTuple);
+    await sendNft(api, 'sent', originalOwner, collectionId, childNftId, parentNftTuple);
 
-        await sendNft(api, "sent", originalOwner, collectionId, childNftId, newOwner);
-    });
+    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;
+  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 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 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];
+    const parentNftTuple: NftIdTuple = [collectionId, parentNftId];
 
-        await sendNft(api, "sent", originalOwner, collectionId, childNftId, parentNftTuple);
+    await sendNft(api, 'sent', originalOwner, collectionId, childNftId, parentNftTuple);
 
-        const tx = sendNft(api, "sent", newOwner, collectionId, childNftId, newOwner);
+    const tx = sendNft(api, 'sent', newOwner, collectionId, childNftId, newOwner);
 
-        await expectTxFailure(/rmrkCore\.NoPermission/, tx);
-    });
+    await expectTxFailure(/rmrkCore\.NoPermission/, tx);
+  });
 
-    after(() => { api.disconnect(); });
+  after(() => { api.disconnect(); });
 });
modifiedtests/src/rmrk/setCollectionProperty.test.tsdiffbeforeafterboth
--- a/tests/src/rmrk/setCollectionProperty.test.ts
+++ b/tests/src/rmrk/setCollectionProperty.test.ts
@@ -1,63 +1,63 @@
-import { getApiConnection } from "../substrate/substrate-api";
-import { expectTxFailure } from "./util/helpers";
-import { createCollection, setPropertyCollection } from "./util/tx";
+import {getApiConnection} from '../substrate/substrate-api';
+import {expectTxFailure} from './util/helpers';
+import {createCollection, setPropertyCollection} from './util/tx';
 
-describe("integration test: set collection property", () => {
-  const Alice = "//Alice";
-  const Bob = "//Bob";
+describe('integration test: set collection property', () => {
+  const Alice = '//Alice';
+  const Bob = '//Bob';
 
   let api: any;
   before(async () => {
     api = await getApiConnection();
   });
 
-  it("set collection property", async () => {
+  it('set collection property', async () => {
     await createCollection(
       api,
       Alice,
-      "test-metadata",
+      'test-metadata',
       null,
-      "test-symbol"
+      '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, 'test_key', '42');
+      await setPropertyCollection(api, Alice, collectionId, 'test_key', '10');
       await setPropertyCollection(
         api,
         Alice,
         collectionId,
-        "second_test_key",
-        "111"
+        'second_test_key',
+        '111',
       );
     });
   });
 
-  it("[negative] set non-existing collection property", async () => {
+  it('[negative] set non-existing collection property', async () => {
     const tx = setPropertyCollection(
       api,
       Alice,
       9999,
-      "test_key",
-      "42"
+      'test_key',
+      '42',
     );
     await expectTxFailure(/rmrkCore\.CollectionUnknown/, tx);
   });
 
-  it("[negative] set property not an owner NFT collection issuer", async () => {
+  it('[negative] set property not an owner NFT collection issuer', async () => {
     await createCollection(
       api,
       Bob,
-      "test-metadata",
+      'test-metadata',
       null,
-      "test-symbol"
+      'test-symbol',
     ).then(async (collectionId) => {
-        const tx = setPropertyCollection(
-          api,
-          Alice,
-          collectionId,
-          "test_key",
-          "42"
-        );
-        await expectTxFailure(/rmrkCore\.NoPermission/, tx);
+      const tx = setPropertyCollection(
+        api,
+        Alice,
+        collectionId,
+        'test_key',
+        '42',
+      );
+      await expectTxFailure(/rmrkCore\.NoPermission/, tx);
     });
   });
 
modifiedtests/src/rmrk/setEquippableList.test.tsdiffbeforeafterboth
--- a/tests/src/rmrk/setEquippableList.test.ts
+++ b/tests/src/rmrk/setEquippableList.test.ts
@@ -1,111 +1,111 @@
-import { getApiConnection } from '../substrate/substrate-api';
-import { expectTxFailure } from './util/helpers';
-import { createCollection, createBase, setEquippableList } from "./util/tx";
+import {getApiConnection} from '../substrate/substrate-api';
+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 () => { api = await getApiConnection(); });
+  let api: any;
+  before(async () => { api = await getApiConnection(); });
 
-    const alice = '//Alice';
-    const bob = '//Bob';
+  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"
-            )
-        ]
+  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 slotId = 202;
 
-        const baseId = await createBase(api, alice, 'slotpartany-base-type', 'slotpartany', [
-            {
-                "SlotPart": {
-                    id: slotId,
-                    equippable: "All",
-                    z: 1,
-                    src: "some-fallback-slot-url"
-                }
-            }
-        ]);
+    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 });
-    });
+    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;
+  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);
-    });
+    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;
+  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 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);
-    });
+    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;
+  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 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);
-    });
+    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;
+  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 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);
-    })
+    const tx = setEquippableList(api, alice, baseId, maxSlotId, 'All');
+    await expectTxFailure(/rmrkEquip\.PartDoesntExist/, tx);
+  });
 
-    after(() => { api.disconnect(); });
+  after(() => { api.disconnect(); });
 });
modifiedtests/src/rmrk/setNftProperty.test.tsdiffbeforeafterboth
--- a/tests/src/rmrk/setNftProperty.test.ts
+++ b/tests/src/rmrk/setNftProperty.test.ts
@@ -1,85 +1,85 @@
-import { getApiConnection } from "../substrate/substrate-api";
-import { NftIdTuple } from "./util/fetch";
-import { expectTxFailure } from "./util/helpers";
-import { createCollection, mintNft, sendNft, setNftProperty } from "./util/tx";
+import {getApiConnection} from '../substrate/substrate-api';
+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 () => { api = await getApiConnection(); });
+describe('integration test: set NFT property', () => {
+  let api: any;
+  before(async () => { api = await getApiConnection(); });
 
-    const alice = "//Alice";
-    const bob = "//Bob";
+  const alice = '//Alice';
+  const bob = '//Bob';
 
-    const createTestCollection = async (issuerUri: string) => {
-        return await createCollection(
-            api,
-            issuerUri,
-            "setprop-nft-collection-metadata",
-            null,
-            "setprop"
-        );
-    };
+  const createTestCollection = async (issuerUri: string) => {
+    return await createCollection(
+      api,
+      issuerUri,
+      'setprop-nft-collection-metadata',
+      null,
+      'setprop',
+    );
+  };
 
-    it("set NFT property", async () => {
-        const ownerAlice = alice;
+  it('set NFT property', async () => {
+    const ownerAlice = alice;
 
-        const collectionId = await createTestCollection(alice);
-        const nftId = await mintNft(api, alice, ownerAlice, collectionId, "prop-nft");
+    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');
-    });
+    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;
+  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');
+    const tx = setNftProperty(api, alice, collectionId, maxNftId, 'test-key', 'test-value');
 
-        await expectTxFailure(/rmrkCore\.NoAvailableNftId/, tx);
-    });
+    await expectTxFailure(/rmrkCore\.NoAvailableNftId/, tx);
+  });
 
-    it("[negative] unable to set a property by not-an-owner", async () => {
-        const ownerAlice = alice;
+  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 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');
+    const tx = setNftProperty(api, bob, collectionId, nftId, 'test-key', 'test-key-value');
 
-        await expectTxFailure(/rmrkCore\.NoPermission/, tx);
-    });
+    await expectTxFailure(/rmrkCore\.NoPermission/, tx);
+  });
 
-    it("set a property to nested NFT", async () => {
-        const ownerAlice = alice;
+  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 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];
+    const ownerNft: NftIdTuple = [collectionId, parentNftId];
 
-        await sendNft(api, "sent", ownerAlice, collectionId, childNftId, ownerNft);
+    await sendNft(api, 'sent', ownerAlice, collectionId, childNftId, ownerNft);
 
-        await setNftProperty(api, alice, collectionId, childNftId, 'test-key', 'test-key-value');
-    });
+    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;
+  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 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];
+    const ownerNft: NftIdTuple = [collectionId, parentNftId];
 
-        await sendNft(api, "sent", ownerAlice, collectionId, childNftId, ownerNft);
+    await sendNft(api, 'sent', ownerAlice, collectionId, childNftId, ownerNft);
 
-        const tx = setNftProperty(api, bob, collectionId, childNftId, 'test-key', 'test-key-value');
+    const tx = setNftProperty(api, bob, collectionId, childNftId, 'test-key', 'test-key-value');
 
-        await expectTxFailure(/rmrkCore\.NoPermission/, tx);
-    });
+    await expectTxFailure(/rmrkCore\.NoPermission/, tx);
+  });
 
-    after(() => { api.disconnect(); });
+  after(() => { api.disconnect(); });
 });
modifiedtests/src/rmrk/setResourcePriorities.test.tsdiffbeforeafterboth
--- a/tests/src/rmrk/setResourcePriorities.test.ts
+++ b/tests/src/rmrk/setResourcePriorities.test.ts
@@ -1,55 +1,55 @@
-import { getApiConnection } from '../substrate/substrate-api';
-import { expectTxFailure } from './util/helpers';
-import { mintNft, createCollection, setResourcePriorities } from './util/tx';
+import {getApiConnection} from '../substrate/substrate-api';
+import {expectTxFailure} from './util/helpers';
+import {mintNft, createCollection, setResourcePriorities} from './util/tx';
 
-describe("integration test: set NFT resource priorities", () => {
-    let api: any;
-    before(async () => { api = await getApiConnection(); });
+describe('integration test: set NFT resource priorities', () => {
+  let api: any;
+  before(async () => { api = await getApiConnection(); });
 
-    const alice = '//Alice';
-    const bob = '//Bob';
+  const alice = '//Alice';
+  const bob = '//Bob';
 
-    const createTestCollection = (issuerUri: string) => {
-        return createCollection(
-            api,
-            issuerUri,
-            'resprio-collection-metadata',
-            null,
-            'resprio'
-        );
-    };
+  const createTestCollection = (issuerUri: string) => {
+    return createCollection(
+      api,
+      issuerUri,
+      'resprio-collection-metadata',
+      null,
+      'resprio',
+    );
+  };
 
-    it("set NFT resource priorities", async () => {
-        const owner = alice;
+  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');
+    const collectionId = await createTestCollection(alice);
+    const nftId = await mintNft(api, alice, owner, collectionId, 'resprio-nft-metadata');
 
-        await setResourcePriorities(api, alice, collectionId, nftId, [10, 42]);
-    });
+    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;
+  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 collectionId = await createTestCollection(alice);
+    const nftId = await mintNft(api, alice, owner, collectionId, 'resprio-nft-metadata');
 
-        const tx = setResourcePriorities(api, attacker, collectionId, nftId, [10, 42]);
+    const tx = setResourcePriorities(api, attacker, collectionId, nftId, [10, 42]);
 
-        await expectTxFailure(/rmrkCore\.NoPermission/, tx);
-    });
+    await expectTxFailure(/rmrkCore\.NoPermission/, tx);
+  });
 
-    it("[negative] set NFT resource priorities to non-existing NFT", async () => {
-        const owner = alice;
+  it('[negative] set NFT resource priorities to non-existing NFT', async () => {
+    const owner = alice;
 
-        const collectionId = 0;
-        const maxNftId = 0xFFFFFFFF;
+    const collectionId = 0;
+    const maxNftId = 0xFFFFFFFF;
 
-        const tx = setResourcePriorities(api, alice, collectionId, maxNftId, [10, 42]);
+    const tx = setResourcePriorities(api, alice, collectionId, maxNftId, [10, 42]);
 
-        await expectTxFailure(/rmrkCore\.NoAvailableNftId/, tx);
-    });
+    await expectTxFailure(/rmrkCore\.NoAvailableNftId/, tx);
+  });
 
-    after(() => { api.disconnect(); });
+  after(() => { api.disconnect(); });
 });
modifiedtests/src/rmrk/util/fetch.tsdiffbeforeafterboth
--- a/tests/src/rmrk/util/fetch.ts
+++ b/tests/src/rmrk/util/fetch.ts
@@ -1,14 +1,14 @@
-import { ApiPromise } from '@polkadot/api';
-import type { Option, Bytes } from '@polkadot/types-codec';
+import {ApiPromise} from '@polkadot/api';
+import type {Option, Bytes} from '@polkadot/types-codec';
 import type {
-    RmrkTraitsCollectionCollectionInfo as Collection,
-    RmrkTraitsNftNftInfo as Nft,
-    RmrkTraitsResourceResourceInfo as Resource,
-    RmrkTraitsBaseBaseInfo as Base,
-    RmrkTraitsPartPartType as PartType,
-    RmrkTraitsNftNftChild as NftChild,
-    RmrkTraitsTheme as Theme,
-    RmrkTraitsPropertyPropertyInfo as Property,
+  RmrkTraitsCollectionCollectionInfo as Collection,
+  RmrkTraitsNftNftInfo as Nft,
+  RmrkTraitsResourceResourceInfo as Resource,
+  RmrkTraitsBaseBaseInfo as Base,
+  RmrkTraitsPartPartType as PartType,
+  RmrkTraitsNftNftChild as NftChild,
+  RmrkTraitsTheme as Theme,
+  RmrkTraitsPropertyPropertyInfo as Property,
 } from '../../interfaces/default/types'; // '@polkadot/types/lookup';
 import '../../interfaces/augment-api';
 import '../../interfaces/augment-api-query';
@@ -17,114 +17,114 @@
 export type NftIdTuple = [number, number];
 
 export async function getCollectionsCount(api: ApiPromise): Promise<number> {
-    return (await api.rpc.rmrk.lastCollectionIdx()).toNumber();
+  return (await api.rpc.rmrk.lastCollectionIdx()).toNumber();
 }
 
 export async function getCollection(api: ApiPromise, id: number): Promise<Option<Collection>> {
-    return api.rpc.rmrk.collectionById(id);
+  return api.rpc.rmrk.collectionById(id);
 }
 
 export async function getOwnedNfts(
-    api: ApiPromise,
-    ownerUri: string,
-    collectionId: number
+  api: ApiPromise,
+  ownerUri: string,
+  collectionId: number,
 ): Promise<number[]> {
-    const ss58Format = api.registry.getChainProperties()!.toJSON().ss58Format;
-    const owner = privateKey(ownerUri, Number(ss58Format));
+  const ss58Format = api.registry.getChainProperties()!.toJSON().ss58Format;
+  const owner = privateKey(ownerUri, Number(ss58Format));
 
-    return (await api.rpc.rmrk.accountTokens(owner.address, collectionId))
-        .map((value) => value.toNumber())
+  return (await api.rpc.rmrk.accountTokens(owner.address, collectionId))
+    .map((value) => value.toNumber());
 }
 
 export async function getNft(api: ApiPromise, collectionId: number, nftId: number): Promise<Option<Nft>> {
-    return api.rpc.rmrk.nftById(collectionId, nftId);
+  return api.rpc.rmrk.nftById(collectionId, nftId);
 }
 
 export async function getCollectionProperties(api: ApiPromise, collectionId: number): Promise<Property[]> {
-    return (await api.rpc.rmrk.collectionProperties(collectionId)).toArray();
+  return (await api.rpc.rmrk.collectionProperties(collectionId)).toArray();
 }
 
 export async function getNftProperties(api: ApiPromise, collectionId: number, nftId: number): Promise<Property[]> {
-    return (await api.rpc.rmrk.nftProperties(collectionId, nftId)).toArray();
+  return (await api.rpc.rmrk.nftProperties(collectionId, nftId)).toArray();
 }
 
 export async function getChildren(
-    api: ApiPromise,
-    collectionId: number,
-    nftId: number
+  api: ApiPromise,
+  collectionId: number,
+  nftId: number,
 ): Promise<NftChild[]> {
-    return (await api.rpc.rmrk.nftChildren(collectionId, nftId)).toArray();
+  return (await api.rpc.rmrk.nftChildren(collectionId, nftId)).toArray();
 }
 
 export async function getBase(api: ApiPromise, baseId: number): Promise<Option<Base>> {
-    return api.rpc.rmrk.base(baseId);
+  return api.rpc.rmrk.base(baseId);
 }
 
 export async function getParts(api: ApiPromise, baseId: number): Promise<PartType[]> {
-    return (await api.rpc.rmrk.baseParts(baseId)).toArray();
+  return (await api.rpc.rmrk.baseParts(baseId)).toArray();
 }
 
 export async function getEquippableList(
-    api: ApiPromise,
-    baseId: number,
-    slotId: number
-): Promise<"All" | "Empty" | { "Custom": number[] } | null> {
-    const parts = await getParts(api, baseId);
+  api: ApiPromise,
+  baseId: number,
+  slotId: number,
+): Promise<'All' | 'Empty' | { 'Custom': number[] } | null> {
+  const parts = await getParts(api, baseId);
 
-    const part = parts.find((part) => {
-        if (part.isSlotPart) {
-            return part.asSlotPart.id.toNumber() === slotId;
-        } else {
-            return false;
-        }
-    });
+  const part = parts.find((part) => {
+    if (part.isSlotPart) {
+      return part.asSlotPart.id.toNumber() === slotId;
+    } else {
+      return false;
+    }
+  });
 
-    if (part) {
-        const slot = part.asSlotPart;
-        if (slot.equippable.isCustom) {
-            return {
-                "Custom": slot.equippable.asCustom
-                            .toArray()
-                            .map((collectionId) => collectionId.toNumber())
-            };
-        } else if (slot.equippable.isAll) {
-            return "All";
-        } else {
-            return "Empty";
-        }
+  if (part) {
+    const slot = part.asSlotPart;
+    if (slot.equippable.isCustom) {
+      return {
+        'Custom': slot.equippable.asCustom
+          .toArray()
+          .map((collectionId) => collectionId.toNumber()),
+      };
+    } else if (slot.equippable.isAll) {
+      return 'All';
     } else {
-        return null;
+      return 'Empty';
     }
+  } else {
+    return null;
+  }
 }
 
 export async function getResourcePriority(
-    api: ApiPromise,
-    collectionId: number,
-    nftId: number,
-    resourceId: number,
+  api: ApiPromise,
+  collectionId: number,
+  nftId: number,
+  resourceId: number,
 ): Promise<number> {
-    return (await api.rpc.rmrk.nftResourcePriority(collectionId, nftId, resourceId))
-        .unwrap().toNumber();
+  return (await api.rpc.rmrk.nftResourcePriority(collectionId, nftId, resourceId))
+    .unwrap().toNumber();
 }
 
 export async function getThemeNames(api: ApiPromise, baseId: number): Promise<string[]> {
-    return (await api.rpc.rmrk.themeNames(baseId))
-        .map((name) => name.toUtf8());
+  return (await api.rpc.rmrk.themeNames(baseId))
+    .map((name) => name.toUtf8());
 }
 
 export async function getTheme(
-    api: ApiPromise,
-    baseId: number,
-    themeName: string,
-    keys: string[] | null = null
+  api: ApiPromise,
+  baseId: number,
+  themeName: string,
+  keys: string[] | null = null,
 ): Promise<Option<Theme>> {
-    return api.rpc.rmrk.themes(baseId, themeName, keys);
+  return api.rpc.rmrk.themes(baseId, themeName, keys);
 }
 
 export async function getResources(
   api: ApiPromise,
   collectionId: number,
-  nftId: number
+  nftId: number,
 ): Promise<Resource[]> {
   return (await api.rpc.rmrk.nftResources(collectionId, nftId)).toArray();
 }
modifiedtests/src/rmrk/util/helpers.tsdiffbeforeafterboth
1import { ApiPromise } from "@polkadot/api";1import {ApiPromise} from '@polkadot/api';
2import {2import {
3 RmrkTraitsNftAccountIdOrCollectionNftTuple as NftOwner,3 RmrkTraitsNftAccountIdOrCollectionNftTuple as NftOwner,
4 RmrkTraitsPropertyPropertyInfo as Property,4 RmrkTraitsPropertyPropertyInfo as Property,
5 RmrkTraitsResourceResourceInfo as ResourceInfo,5 RmrkTraitsResourceResourceInfo as ResourceInfo,
6} from "@polkadot/types/lookup";6} from '@polkadot/types/lookup';
7import type { EventRecord } from '@polkadot/types/interfaces';7import type {EventRecord} from '@polkadot/types/interfaces';
8import type { GenericEventData } from '@polkadot/types';8import type {GenericEventData} from '@polkadot/types';
9import privateKey from "../../substrate/privateKey";9import privateKey from '../../substrate/privateKey';
10import { NftIdTuple, getChildren, getOwnedNfts, getCollectionProperties, getNftProperties, getResources } from './fetch';10import {NftIdTuple, getChildren, getOwnedNfts, getCollectionProperties, getNftProperties, getResources} from './fetch';
11import chaiAsPromised from 'chai-as-promised';11import chaiAsPromised from 'chai-as-promised';
12import chai from 'chai';12import chai from 'chai';
20}20}
2121
22export function makeNftOwner(api: ApiPromise, owner: string | NftIdTuple): NftOwner {22export function makeNftOwner(api: ApiPromise, owner: string | NftIdTuple): NftOwner {
23 const isNftSending = (typeof owner !== "string");23 const isNftSending = (typeof owner !== 'string');
2424
25 if (isNftSending) {25 if (isNftSending) {
26 return api.createType("RmrkTraitsNftAccountIdOrCollectionNftTuple", {26 return api.createType('RmrkTraitsNftAccountIdOrCollectionNftTuple', {
27 "CollectionAndNftTuple": owner27 'CollectionAndNftTuple': owner,
28 });28 });
29 } else {29 } else {
30 const ss58Format = api.registry.getChainProperties()!.toJSON().ss58Format;30 const ss58Format = api.registry.getChainProperties()!.toJSON().ss58Format;
31 return api.createType("RmrkTraitsNftAccountIdOrCollectionNftTuple", {31 return api.createType('RmrkTraitsNftAccountIdOrCollectionNftTuple', {
32 AccountId: privateKey(owner, Number(ss58Format)).address,32 AccountId: privateKey(owner, Number(ss58Format)).address,
33 });33 });
34 }34 }
40 collectionId: number,40 collectionId: number,
41 nftId: number41 nftId: number,
42): Promise<boolean> {42): Promise<boolean> {
43 if (typeof owner === "string") {43 if (typeof owner === 'string') {
44 return (await getOwnedNfts(api, owner, collectionId))44 return (await getOwnedNfts(api, owner, collectionId))
45 .find(ownedNftId => {45 .find(ownedNftId => {
46 return ownedNftId === nftId;46 return ownedNftId === nftId;
60 props: Property[]60 props: Property[],
61): boolean {61): boolean {
62 let isPropFound = false;62 let isPropFound = false;
63 for (var i = 0; i < props.length && !isPropFound; i++) {63 for (let i = 0; i < props.length && !isPropFound; i++) {
64 const fetchedProp = props[i];64 const fetchedProp = props[i];
6565
66 isPropFound = fetchedProp.key.eq(key)66 isPropFound = fetchedProp.key.eq(key)
200200
201export function checkResourceStatus(201export function checkResourceStatus(
202 resource: ResourceInfo,202 resource: ResourceInfo,
203 expectedStatus: "pending" | "added"203 expectedStatus: 'pending' | 'added',
204) {204) {
205 expect(resource.pending.isTrue, `Error: added resource should be ${expectedStatus}`)205 expect(resource.pending.isTrue, `Error: added resource should be ${expectedStatus}`)
206 .to.be.equal(expectedStatus === "pending");206 .to.be.equal(expectedStatus === 'pending');
207}207}
208208
modifiedtests/src/rmrk/util/tx.tsdiffbeforeafterboth
--- a/tests/src/rmrk/util/tx.ts
+++ b/tests/src/rmrk/util/tx.ts
@@ -1,16 +1,16 @@
-import { ApiPromise } from "@polkadot/api";
-import { Bytes, Option, u32, Vec } from '@polkadot/types-codec';
+import {ApiPromise} from '@polkadot/api';
+import {Bytes, Option, u32, Vec} from '@polkadot/types-codec';
 import {
   RmrkTraitsNftAccountIdOrCollectionNftTuple as NftOwner, RmrkTraitsPartEquippableList as EquippableList,
   RmrkTraitsPartPartType as PartType, RmrkTraitsResourceBasicResource as BasicResource,
-  RmrkTraitsResourceComposableResource as ComposableResource, RmrkTraitsResourceResourceInfo as ResourceInfo, RmrkTraitsResourceSlotResource as SlotResource, RmrkTraitsTheme as Theme
-} from "@polkadot/types/lookup";
-import { IKeyringPair } from "@polkadot/types/types";
+  RmrkTraitsResourceComposableResource as ComposableResource, RmrkTraitsResourceResourceInfo as ResourceInfo, RmrkTraitsResourceSlotResource as SlotResource, RmrkTraitsTheme as Theme,
+} from '@polkadot/types/lookup';
+import {IKeyringPair} from '@polkadot/types/types';
 import chai from 'chai';
 import chaiAsPromised from 'chai-as-promised';
 import '../../interfaces/augment-api';
-import privateKey from "../../substrate/privateKey";
-import { executeTransaction } from "../../substrate/substrate-api";
+import privateKey from '../../substrate/privateKey';
+import {executeTransaction} from '../../substrate/substrate-api';
 import {
   getBase,
   getCollection,
@@ -21,315 +21,307 @@
   getResources, 
   getResourcePriority, 
   getTheme,
-  NftIdTuple
-} from "./fetch";
+  NftIdTuple,
+} from './fetch';
 import {
   extractRmrkCoreTxResult,
   extractRmrkEquipTxResult, isCollectionPropertyExists, isNftOwnedBy, isNftPropertyExists, isTxResultSuccess, makeNftOwner,
-  findResourceById, getResourceById, checkResourceStatus
-} from "./helpers";
+  findResourceById, getResourceById, checkResourceStatus,
+} from './helpers';
 
 chai.use(chaiAsPromised);
 const expect = chai.expect;
 
 export async function createCollection(
-    api: ApiPromise,
-    issuerUri: string,
-    metadata: string,
-    max: number | null,
-    symbol: string
-  ): Promise<number> {
-    let collectionId = 0;
+  api: ApiPromise,
+  issuerUri: string,
+  metadata: string,
+  max: number | null,
+  symbol: string,
+): Promise<number> {
+  let collectionId = 0;
 
-    const oldCollectionCount = await getCollectionsCount(api);
-    const maxOptional = max ? max.toString() : null;
-    const ss58Format = (api.registry.getChainProperties())!.toJSON().ss58Format;
-    const issuer = privateKey(issuerUri, Number(ss58Format));
-    const tx = api.tx.rmrkCore.createCollection(metadata, maxOptional, symbol);
-    const events = await executeTransaction(api, issuer, tx);
+  const oldCollectionCount = await getCollectionsCount(api);
+  const maxOptional = max ? max.toString() : null;
+  const ss58Format = (api.registry.getChainProperties())!.toJSON().ss58Format;
+  const issuer = privateKey(issuerUri, Number(ss58Format));
+  const tx = api.tx.rmrkCore.createCollection(metadata, maxOptional, symbol);
+  const events = await executeTransaction(api, issuer, tx);
 
-    const collectionResult = extractRmrkCoreTxResult(
-        events, 'CollectionCreated', (data) => {
-            return parseInt(data[1].toString(), 10)
-        }
-    );
-    expect(collectionResult.success, 'Error: unable to create a collection').to.be.true;
+  const collectionResult = extractRmrkCoreTxResult(events, 'CollectionCreated', (data) => {
+    return parseInt(data[1].toString(), 10);
+  });
+  expect(collectionResult.success, 'Error: unable to create a collection').to.be.true;
 
-    collectionId = collectionResult.successData!;
+  collectionId = collectionResult.successData!;
 
-    const newCollectionCount = await getCollectionsCount(api);
-    const collectionOption = await getCollection(api, collectionId);
+  const newCollectionCount = await getCollectionsCount(api);
+  const collectionOption = await getCollection(api, collectionId);
 
-    expect(newCollectionCount).to.be.equal(oldCollectionCount + 1, 'Error: NFT collection count should increase');
-    expect(collectionOption.isSome, 'Error: unable to fetch created NFT collection').to.be.true;
+  expect(newCollectionCount).to.be.equal(oldCollectionCount + 1, 'Error: NFT collection count should increase');
+  expect(collectionOption.isSome, 'Error: unable to fetch created NFT collection').to.be.true;
 
-    const collection = collectionOption.unwrap();
+  const collection = collectionOption.unwrap();
 
-    expect(collection.metadata.toUtf8()).to.be.equal(metadata, "Error: Invalid NFT collection metadata");
-    expect(collection.max.isSome).to.be.equal(max !== null, "Error: Invalid NFT collection max");
+  expect(collection.metadata.toUtf8()).to.be.equal(metadata, 'Error: Invalid NFT collection metadata');
+  expect(collection.max.isSome).to.be.equal(max !== null, 'Error: Invalid NFT collection max');
 
-    if (collection.max.isSome) {
-        expect(collection.max.unwrap().toNumber()).to.be.equal(max, "Error: Invalid NFT collection max");
-    }
-    expect(collection.symbol.toUtf8()).to.be.equal(symbol, "Error: Invalid NFT collection's symbol");
-    expect(collection.nftsCount.toNumber()).to.be.equal(0, "Error: NFT collection shoudn't have any tokens");
-    expect(collection.issuer.toString()).to.be.equal(issuer.address, "Error: Invalid NFT collection issuer");
+  if (collection.max.isSome) {
+    expect(collection.max.unwrap().toNumber()).to.be.equal(max, 'Error: Invalid NFT collection max');
+  }
+  expect(collection.symbol.toUtf8()).to.be.equal(symbol, "Error: Invalid NFT collection's symbol");
+  expect(collection.nftsCount.toNumber()).to.be.equal(0, "Error: NFT collection shoudn't have any tokens");
+  expect(collection.issuer.toString()).to.be.equal(issuer.address, 'Error: Invalid NFT collection issuer');
 
-    return collectionId;
+  return collectionId;
 }
 
 export async function changeIssuer(
-    api: ApiPromise,
-    issuerUri: string,
-    collectionId: number,
-    newIssuer: string
+  api: ApiPromise,
+  issuerUri: string,
+  collectionId: number,
+  newIssuer: string,
 ) {
-    const ss58Format = api.registry.getChainProperties()!.toJSON().ss58Format;
-    const alice = privateKey(issuerUri, Number(ss58Format));
-    const bob = privateKey(newIssuer, Number(ss58Format));
+  const ss58Format = api.registry.getChainProperties()!.toJSON().ss58Format;
+  const alice = privateKey(issuerUri, Number(ss58Format));
+  const bob = privateKey(newIssuer, Number(ss58Format));
 
-    // This is only needed when RMRK uses `uniques` pallet by Parity
-    // let tx = api.tx.uniques.setAcceptOwnership(
-    //     api.createType('Option<u32>', collectionId)
-    // );
-    // let events = await executeTransaction(api, bob, tx);
-    // expect(isTxResultSuccess(events), 'Error: Unable to accept ownership').to.be.true;
+  // This is only needed when RMRK uses `uniques` pallet by Parity
+  // let tx = api.tx.uniques.setAcceptOwnership(
+  //     api.createType('Option<u32>', collectionId)
+  // );
+  // let events = await executeTransaction(api, bob, tx);
+  // expect(isTxResultSuccess(events), 'Error: Unable to accept ownership').to.be.true;
 
-    const tx = api.tx.rmrkCore.changeCollectionIssuer(collectionId, bob.address);
-    const events = await executeTransaction(api, alice, tx);
-    const changeIssuerResult = extractRmrkCoreTxResult(
-        events, 'IssuerChanged', (data) => {
-            return parseInt(data[2].toString(), 10);
-        }
-    );
-    expect(changeIssuerResult.success, 'Error: Unable to change NFT collection issuer').to.be.true;
-    expect(changeIssuerResult.successData!, 'Error: Invalid collection id after changing the issuer')
-        .to.be.eq(collectionId);
+  const tx = api.tx.rmrkCore.changeCollectionIssuer(collectionId, bob.address);
+  const events = await executeTransaction(api, alice, tx);
+  const changeIssuerResult = extractRmrkCoreTxResult(events, 'IssuerChanged', (data) => {
+    return parseInt(data[2].toString(), 10);
+  });
+  expect(changeIssuerResult.success, 'Error: Unable to change NFT collection issuer').to.be.true;
+  expect(changeIssuerResult.successData!, 'Error: Invalid collection id after changing the issuer')
+    .to.be.eq(collectionId);
 
-    await getCollection(api, collectionId).then((collectionOption) => {
-        const collection = collectionOption.unwrap();
-        expect(collection.issuer.toString())
-            .to.be.deep.eq(bob.address, 'Error: Invalid NFT collection issuer');
-    });
+  await getCollection(api, collectionId).then((collectionOption) => {
+    const collection = collectionOption.unwrap();
+    expect(collection.issuer.toString())
+      .to.be.deep.eq(bob.address, 'Error: Invalid NFT collection issuer');
+  });
 }
 
 export async function deleteCollection(
-    api: ApiPromise,
-    issuerUri: string,
-    collectionId: string
+  api: ApiPromise,
+  issuerUri: string,
+  collectionId: string,
 ): Promise<number> {
-    const ss58Format = api.registry.getChainProperties()!.toJSON().ss58Format;
-    const issuer = privateKey(issuerUri, Number(ss58Format));
-    const tx = api.tx.rmrkCore.destroyCollection(collectionId);
-    const events = await executeTransaction(api, issuer, tx);
+  const ss58Format = api.registry.getChainProperties()!.toJSON().ss58Format;
+  const issuer = privateKey(issuerUri, Number(ss58Format));
+  const tx = api.tx.rmrkCore.destroyCollection(collectionId);
+  const events = await executeTransaction(api, issuer, tx);
 
-    const collectionTxResult = extractRmrkCoreTxResult(
-        events,
-        "CollectionDestroy",
-        (data) => {
-        return parseInt(data[1].toString(), 10);
-        }
-    );
-    expect(collectionTxResult.success, 'Error: Unable to delete NFT collection').to.be.true;
+  const collectionTxResult = extractRmrkCoreTxResult(
+    events,
+    'CollectionDestroy',
+    (data) => {
+      return parseInt(data[1].toString(), 10);
+    },
+  );
+  expect(collectionTxResult.success, 'Error: Unable to delete NFT collection').to.be.true;
 
-    const collection = await getCollection(
-        api,
-        parseInt(collectionId, 10)
-    );
-    expect(collection.isEmpty, 'Error: NFT collection should be deleted').to.be.true;
+  const collection = await getCollection(
+    api,
+    parseInt(collectionId, 10),
+  );
+  expect(collection.isEmpty, 'Error: NFT collection should be deleted').to.be.true;
 
-    return 0;
+  return 0;
 }
 
 export async function negativeDeleteCollection(
-    api: ApiPromise,
-    issuerUri: string,
-    collectionId: string
+  api: ApiPromise,
+  issuerUri: string,
+  collectionId: string,
 ): Promise<number> {
-    const ss58Format = api.registry.getChainProperties()!.toJSON().ss58Format;
-    const issuer = privateKey(issuerUri, Number(ss58Format));
-    const tx = api.tx.rmrkCore.destroyCollection(collectionId);
-    await expect(executeTransaction(api, issuer, tx)).to.be.rejected;
+  const ss58Format = api.registry.getChainProperties()!.toJSON().ss58Format;
+  const issuer = privateKey(issuerUri, Number(ss58Format));
+  const tx = api.tx.rmrkCore.destroyCollection(collectionId);
+  await expect(executeTransaction(api, issuer, tx)).to.be.rejected;
 
-    return 0;
+  return 0;
 }
 
 export async function setNftProperty(
-    api: ApiPromise,
-    issuerUri: string,
-    collectionId: number,
-    nftId: number,
-    key: string,
-    value: string
+  api: ApiPromise,
+  issuerUri: string,
+  collectionId: number,
+  nftId: number,
+  key: string,
+  value: string,
 ) {
-    const ss58Format = api.registry.getChainProperties()!.toJSON().ss58Format;
-    const issuer = privateKey(issuerUri, Number(ss58Format));
-    const nftIdOpt = api.createType('Option<u32>', nftId);
-    const tx = api.tx.rmrkCore.setProperty(
-        collectionId,
-        nftIdOpt,
-        key,
-        value
-    );
-    const events = await executeTransaction(api, issuer, tx);
+  const ss58Format = api.registry.getChainProperties()!.toJSON().ss58Format;
+  const issuer = privateKey(issuerUri, Number(ss58Format));
+  const nftIdOpt = api.createType('Option<u32>', nftId);
+  const tx = api.tx.rmrkCore.setProperty(
+    collectionId,
+    nftIdOpt,
+    key,
+    value,
+  );
+  const events = await executeTransaction(api, issuer, tx);
 
-    const propResult = extractRmrkCoreTxResult(
-        events, 'PropertySet', (data) => {
-            return {
-                collectionId: parseInt(data[0].toString(), 10),
-                nftId: data[1] as Option<u32>,
-                key: data[2] as Bytes,
-                value: data[3] as Bytes
-            };
-        }
-    );
+  const propResult = extractRmrkCoreTxResult(events, 'PropertySet', (data) => {
+    return {
+      collectionId: parseInt(data[0].toString(), 10),
+      nftId: data[1] as Option<u32>,
+      key: data[2] as Bytes,
+      value: data[3] as Bytes,
+    };
+  });
 
-    expect(propResult.success, 'Error: Unable to set NFT property').to.be.true;
-    const eventData = propResult.successData!;
-    const eventDescription = 'from set NFT property event';
+  expect(propResult.success, 'Error: Unable to set NFT property').to.be.true;
+  const eventData = propResult.successData!;
+  const eventDescription = 'from set NFT property event';
 
-    expect(eventData.collectionId, 'Error: Invalid collection ID ' + eventDescription)
-        .to.be.equal(collectionId);
+  expect(eventData.collectionId, 'Error: Invalid collection ID ' + eventDescription)
+    .to.be.equal(collectionId);
 
-    expect(eventData.nftId.eq(nftIdOpt), 'Error: Invalid NFT ID ' + eventDescription)
-        .to.be.true;
+  expect(eventData.nftId.eq(nftIdOpt), 'Error: Invalid NFT ID ' + eventDescription)
+    .to.be.true;
 
-    expect(eventData.key.eq(key), 'Error: Invalid property key ' + eventDescription)
-        .to.be.true;
+  expect(eventData.key.eq(key), 'Error: Invalid property key ' + eventDescription)
+    .to.be.true;
 
-    expect(eventData.value.eq(value), 'Error: Invalid property value ' + eventDescription)
-        .to.be.true;
+  expect(eventData.value.eq(value), 'Error: Invalid property value ' + eventDescription)
+    .to.be.true;
 
-    expect(
-        await isNftPropertyExists(api, collectionId, nftId, key, value),
-        'Error: NFT property is not found'
-    ).to.be.true;
+  expect(
+    await isNftPropertyExists(api, collectionId, nftId, key, value),
+    'Error: NFT property is not found',
+  ).to.be.true;
 }
 
 export async function mintNft(
-    api: ApiPromise,
-    issuerUri: string,
-    ownerUri: string | null,
-    collectionId: number,
-    metadata: string,
-    recipientUri: string | null = null,
-    royalty: number | null = null,
-    transferable: boolean = true,
-    resources: {basic?: any, composable?: any, slot?: any}[] | null = null
+  api: ApiPromise,
+  issuerUri: string,
+  ownerUri: string | null,
+  collectionId: number,
+  metadata: string,
+  recipientUri: string | null = null,
+  royalty: number | null = null,
+  transferable = true,
+  resources: {basic?: any, composable?: any, slot?: any}[] | null = null,
 ): Promise<number> {
-    let nftId = 0;
-    const ss58Format = api.registry.getChainProperties()!.toJSON().ss58Format;
-    const issuer = privateKey(issuerUri, Number(ss58Format));
-    const owner = ownerUri ? privateKey(ownerUri, Number(ss58Format)).address : null;
-    const recipient = recipientUri ? privateKey(recipientUri, Number(ss58Format)).address : null;
-    const royaltyOptional = royalty ? royalty.toString() : null;
+  let nftId = 0;
+  const ss58Format = api.registry.getChainProperties()!.toJSON().ss58Format;
+  const issuer = privateKey(issuerUri, Number(ss58Format));
+  const owner = ownerUri ? privateKey(ownerUri, Number(ss58Format)).address : null;
+  const recipient = recipientUri ? privateKey(recipientUri, Number(ss58Format)).address : null;
+  const royaltyOptional = royalty ? royalty.toString() : null;
 
-    const actualOwnerUri = ownerUri ? ownerUri : issuerUri;
-    const actualOwnerAddress = ownerUri ? owner : issuer.address;
+  const actualOwnerUri = ownerUri ? ownerUri : issuerUri;
+  const actualOwnerAddress = ownerUri ? owner : issuer.address;
 
-    const collectionOpt = await getCollection(api, collectionId);
+  const collectionOpt = await getCollection(api, collectionId);
 
-    const tx = api.tx.rmrkCore.mintNft(
-        owner,
-        collectionId,
-        recipient,
-        royaltyOptional,
-        metadata,
-        transferable,
-        resources,
-    );
+  const tx = api.tx.rmrkCore.mintNft(
+    owner,
+    collectionId,
+    recipient,
+    royaltyOptional,
+    metadata,
+    transferable,
+    resources,
+  );
 
-    const events = await executeTransaction(api, issuer, tx);
-    const nftResult = extractRmrkCoreTxResult(
-        events, 'NftMinted', (data) => {
-            return parseInt(data[2].toString(), 10);
-        }
-    );
+  const events = await executeTransaction(api, issuer, tx);
+  const nftResult = extractRmrkCoreTxResult(events, 'NftMinted', (data) => {
+    return parseInt(data[2].toString(), 10);
+  });
 
-    expect(nftResult.success, 'Error: Unable to mint NFT').to.be.true;
+  expect(nftResult.success, 'Error: Unable to mint NFT').to.be.true;
 
-    const newCollectionNftsCount = (await getCollection(api, collectionId))
-        .unwrap()
-        .nftsCount
-        .toNumber();
+  const newCollectionNftsCount = (await getCollection(api, collectionId))
+    .unwrap()
+    .nftsCount
+    .toNumber();
 
-    const oldCollectionNftsCount = collectionOpt
-      .unwrap()
-      .nftsCount.toNumber();
+  const oldCollectionNftsCount = collectionOpt
+    .unwrap()
+    .nftsCount.toNumber();
 
-    expect(newCollectionNftsCount, 'Error: NFTs count should increase')
-        .to.be.equal(oldCollectionNftsCount + 1);
+  expect(newCollectionNftsCount, 'Error: NFTs count should increase')
+    .to.be.equal(oldCollectionNftsCount + 1);
 
-    nftId = nftResult.successData!;
+  nftId = nftResult.successData!;
 
-    const nftOption = await getNft(api, collectionId, nftId);
+  const nftOption = await getNft(api, collectionId, nftId);
 
-    expect(nftOption.isSome, 'Error: Unable to fetch created NFT').to.be.true;
+  expect(nftOption.isSome, 'Error: Unable to fetch created NFT').to.be.true;
 
-    const nft = nftOption.unwrap();
+  const nft = nftOption.unwrap();
 
-    expect(nft.owner.isAccountId, 'Error: NFT owner should be some user').to.be.true;
-    expect(nft.owner.asAccountId.toString()).to.be.equal(actualOwnerAddress, "Error: Invalid NFT owner");
+  expect(nft.owner.isAccountId, 'Error: NFT owner should be some user').to.be.true;
+  expect(nft.owner.asAccountId.toString()).to.be.equal(actualOwnerAddress, 'Error: Invalid NFT owner');
 
-    const isOwnedInUniques = await isNftOwnedBy(api, actualOwnerUri, collectionId, nftId);
-    expect(isOwnedInUniques, `Error: created NFT is not actually owned by ${ownerUri}`)
-        .to.be.true;
+  const isOwnedInUniques = await isNftOwnedBy(api, actualOwnerUri, collectionId, nftId);
+  expect(isOwnedInUniques, `Error: created NFT is not actually owned by ${ownerUri}`)
+    .to.be.true;
 
-    if (recipient === null && royalty === null) {
-        expect(nft.royalty.isNone, 'Error: Invalid NFT recipient')
-            .to.be.true;
-    } else {
-        expect(nft.royalty.isSome, 'Error: NFT royalty not found')
-            .to.be.true;
+  if (recipient === null && royalty === null) {
+    expect(nft.royalty.isNone, 'Error: Invalid NFT recipient')
+      .to.be.true;
+  } else {
+    expect(nft.royalty.isSome, 'Error: NFT royalty not found')
+      .to.be.true;
 
-        const nftRoyalty = nft.royalty.unwrap();
-        expect(nftRoyalty.recipient.eq(recipient), 'Error: Invalid NFT recipient')
-            .to.be.true;
+    const nftRoyalty = nft.royalty.unwrap();
+    expect(nftRoyalty.recipient.eq(recipient), 'Error: Invalid NFT recipient')
+      .to.be.true;
 
-        expect(nftRoyalty.amount.eq(royalty), 'Error: Invalid NFT royalty')
-            .to.be.true;
-    }
+    expect(nftRoyalty.amount.eq(royalty), 'Error: Invalid NFT royalty')
+      .to.be.true;
+  }
 
-    expect(nft.metadata.toUtf8()).to.be.equal(metadata, "Error: Invalid NFT metadata");
+  expect(nft.metadata.toUtf8()).to.be.equal(metadata, 'Error: Invalid NFT metadata');
     
-    const nftResources = await getResources(api, collectionId, nftId);
-    if (resources == null) {
-        expect(nftResources, 'Error: Invalid NFT resources').to.be.empty;
-    } else {
-        expect(nftResources.length).to.be.equal(resources.length);
+  const nftResources = await getResources(api, collectionId, nftId);
+  if (resources == null) {
+    expect(nftResources, 'Error: Invalid NFT resources').to.be.empty;
+  } else {
+    expect(nftResources.length).to.be.equal(resources.length);
 
-        for (let i = 0; i < resources.length; i++) {
-            let successFindingResource = false;
-            const resource = resources[i];
-            // try to find the matching resource from the query
-            for (let j = 0; j < nftResources.length && !successFindingResource; j++) {
-                const nftResourceData = nftResources[j].toHuman();
-                expect(nftResourceData.hasOwnProperty('resource'), `Error: Corrupted resource data on resource #${i}`);
-                const nftResource = nftResourceData.resource!;
+    for (let i = 0; i < resources.length; i++) {
+      let successFindingResource = false;
+      const resource = resources[i];
+      // try to find the matching resource from the query
+      for (let j = 0; j < nftResources.length && !successFindingResource; j++) {
+        const nftResourceData = nftResources[j].toHuman();
+        expect(nftResourceData.hasOwnProperty('resource'), `Error: Corrupted resource data on resource #${i}`);
+        const nftResource = nftResourceData.resource!;
                 type NftResourceKey = keyof typeof nftResource;
 
                 let typedResource = null;
                 let typedNftResource = null;
 
-                if (resource.basic && nftResource.hasOwnProperty("Basic")) {
-                    typedResource = resource.basic!;
-                    typedNftResource = nftResource["Basic" as NftResourceKey]!;
-                } else if (resource.composable && nftResource.hasOwnProperty("Composable")) {
-                    typedResource = resource.composable!;
-                    typedNftResource = nftResource["Composable" as NftResourceKey]! as any;
-                    if (typedResource.parts != undefined && typedResource.parts.toString() != typedNftResource.parts.toString()
+                if (resource.basic && nftResource.hasOwnProperty('Basic')) {
+                  typedResource = resource.basic!;
+                  typedNftResource = nftResource['Basic' as NftResourceKey]!;
+                } else if (resource.composable && nftResource.hasOwnProperty('Composable')) {
+                  typedResource = resource.composable!;
+                  typedNftResource = nftResource['Composable' as NftResourceKey]! as any;
+                  if (typedResource.parts != undefined && typedResource.parts.toString() != typedNftResource.parts.toString()
                         || typedResource.base != typedNftResource.base && typedResource.base != undefined) {
-                        continue;
-                    }
-                } else if (resource.slot && nftResource.hasOwnProperty("Slot")) {
-                    typedResource = resource.slot!;
-                    typedNftResource = nftResource["Slot" as NftResourceKey]! as any;
-                    if (typedResource.slot != typedNftResource.slot && typedResource.slot != undefined 
+                    continue;
+                  }
+                } else if (resource.slot && nftResource.hasOwnProperty('Slot')) {
+                  typedResource = resource.slot!;
+                  typedNftResource = nftResource['Slot' as NftResourceKey]! as any;
+                  if (typedResource.slot != typedNftResource.slot && typedResource.slot != undefined 
                         || typedResource.base != typedNftResource.base && typedResource.base != undefined) {
-                        continue;
-                    }
-                } else {
                     continue;
+                  }
+                } else {
+                  continue;
                 }
 
                 if (typedResource.src != typedNftResource.src 
@@ -337,7 +329,7 @@
                     || typedResource.thumb != typedNftResource.thumb
                     || typedResource.license != typedNftResource.license
                 ) {
-                    continue;
+                  continue;
                 }
 
                 // do final checks since this is now established to be the resource we seek
@@ -347,365 +339,357 @@
                 // remove the matching resource from the resources we check
                 nftResources.splice(j, 1);
                 successFindingResource = true;
-            };
+      }
 
-            expect(successFindingResource, `Error: Couldn't find resource #${i}'s counterpart among the returned`).to.be.true;
-        }
+      expect(successFindingResource, `Error: Couldn't find resource #${i}'s counterpart among the returned`).to.be.true;
     }
+  }
 
-    return nftId;
+  return nftId;
 }
 
 export async function sendNft(
-    api: ApiPromise,
-    expectedStatus: "pending" | "sent",
-    originalOwnerUri: string,
-    collectionId: number,
-    nftId: number,
-    newOwner: string | NftIdTuple
+  api: ApiPromise,
+  expectedStatus: 'pending' | 'sent',
+  originalOwnerUri: string,
+  collectionId: number,
+  nftId: number,
+  newOwner: string | NftIdTuple,
 ) {
-    const ss58Format = api.registry.getChainProperties()!.toJSON().ss58Format;
-    const originalOwner = privateKey(originalOwnerUri, Number(ss58Format));
-    const newOwnerObj = makeNftOwner(api, newOwner);
+  const ss58Format = api.registry.getChainProperties()!.toJSON().ss58Format;
+  const originalOwner = privateKey(originalOwnerUri, Number(ss58Format));
+  const newOwnerObj = makeNftOwner(api, newOwner);
 
-    const nftBeforeSendingOpt = await getNft(api, collectionId, nftId);
+  const nftBeforeSendingOpt = await getNft(api, collectionId, nftId);
 
-    const tx = api.tx.rmrkCore.send(collectionId, nftId, newOwnerObj);
-    const events = await executeTransaction(api, originalOwner, tx);
+  const tx = api.tx.rmrkCore.send(collectionId, nftId, newOwnerObj);
+  const events = await executeTransaction(api, originalOwner, tx);
 
-    const sendResult = extractRmrkCoreTxResult(events, "NFTSent", (data) => {
-        return {
-            dstOwner: data[1] as NftOwner,
-            collectionId: parseInt(data[2].toString(), 10),
-            nftId: parseInt(data[3].toString(), 10)
-        };
-    });
+  const sendResult = extractRmrkCoreTxResult(events, 'NFTSent', (data) => {
+    return {
+      dstOwner: data[1] as NftOwner,
+      collectionId: parseInt(data[2].toString(), 10),
+      nftId: parseInt(data[3].toString(), 10),
+    };
+  });
 
-    expect(sendResult.success, 'Error: Unable to send NFT').to.be.true;
-    const sendData = sendResult.successData!;
+  expect(sendResult.success, 'Error: Unable to send NFT').to.be.true;
+  const sendData = sendResult.successData!;
 
-    expect(sendData.dstOwner.eq(newOwnerObj), 'Error: Invalid target user (from event data)')
-        .to.be.true;
+  expect(sendData.dstOwner.eq(newOwnerObj), 'Error: Invalid target user (from event data)')
+    .to.be.true;
 
-    expect(sendData.collectionId)
-        .to.be.equal(collectionId, 'Error: Invalid collection ID (from event data)');
+  expect(sendData.collectionId)
+    .to.be.equal(collectionId, 'Error: Invalid collection ID (from event data)');
 
-    expect(sendData.nftId).to.be.equal(nftId, 'Error: Invalid NFT ID (from event data)');
+  expect(sendData.nftId).to.be.equal(nftId, 'Error: Invalid NFT ID (from event data)');
 
-    expect(nftBeforeSendingOpt.isSome, 'Error: Unable to fetch NFT before sending').to.be.true;
+  expect(nftBeforeSendingOpt.isSome, 'Error: Unable to fetch NFT before sending').to.be.true;
 
-    const nftBeforeSending = nftBeforeSendingOpt.unwrap();
+  const nftBeforeSending = nftBeforeSendingOpt.unwrap();
 
-    const nftAfterSendingOpt = await getNft(api, collectionId, nftId);
+  const nftAfterSendingOpt = await getNft(api, collectionId, nftId);
 
-    expect(nftAfterSendingOpt.isSome, 'Error: Unable to fetch NFT after sending').to.be.true;
+  expect(nftAfterSendingOpt.isSome, 'Error: Unable to fetch NFT after sending').to.be.true;
 
-    const nftAfterSending = nftAfterSendingOpt.unwrap();
+  const nftAfterSending = nftAfterSendingOpt.unwrap();
 
-    const isOwnedByNewOwner = await isNftOwnedBy(api, newOwner, collectionId, nftId);
-    const isPending = expectedStatus === "pending";
+  const isOwnedByNewOwner = await isNftOwnedBy(api, newOwner, collectionId, nftId);
+  const isPending = expectedStatus === 'pending';
 
-    expect(
-        isOwnedByNewOwner,
-        `Error: The NFT should be owned by ${newOwner.toString()}`
-    ).to.be.true;
+  expect(
+    isOwnedByNewOwner,
+    `Error: The NFT should be owned by ${newOwner.toString()}`,
+  ).to.be.true;
 
-    expect(nftAfterSending.royalty.eq(nftBeforeSending.royalty), 'Error: Invalid NFT royalty after sending')
-        .to.be.true;
+  expect(nftAfterSending.royalty.eq(nftBeforeSending.royalty), 'Error: Invalid NFT royalty after sending')
+    .to.be.true;
 
-    expect(nftAfterSending.metadata.eq(nftBeforeSending.metadata), 'Error: Invalid NFT metadata after sending')
-        .to.be.true;
+  expect(nftAfterSending.metadata.eq(nftBeforeSending.metadata), 'Error: Invalid NFT metadata after sending')
+    .to.be.true;
 
-    expect(nftAfterSending.equipped.eq(nftBeforeSending.equipped), 'Error: Invalid NFT equipped status after sending')
-        .to.be.true;
+  expect(nftAfterSending.equipped.eq(nftBeforeSending.equipped), 'Error: Invalid NFT equipped status after sending')
+    .to.be.true;
 
-    expect(nftAfterSending.pending.eq(isPending), 'Error: Invalid NFT pending state')
-        .to.be.true;
+  expect(nftAfterSending.pending.eq(isPending), 'Error: Invalid NFT pending state')
+    .to.be.true;
 }
 
 export async function acceptNft(
-    api: ApiPromise,
-    issuerUri: string,
-    collectionId: number,
-    nftId: number,
-    newOwner: string | [number, number]
+  api: ApiPromise,
+  issuerUri: string,
+  collectionId: number,
+  nftId: number,
+  newOwner: string | [number, number],
 ) {
-    const ss58Format = api.registry.getChainProperties()!.toJSON().ss58Format;
-    const issuer = privateKey(issuerUri, Number(ss58Format));
-    const newOwnerObj = makeNftOwner(api, newOwner);
+  const ss58Format = api.registry.getChainProperties()!.toJSON().ss58Format;
+  const issuer = privateKey(issuerUri, Number(ss58Format));
+  const newOwnerObj = makeNftOwner(api, newOwner);
 
-    let nftBeforeOpt = await getNft(api, collectionId, nftId);
+  const nftBeforeOpt = await getNft(api, collectionId, nftId);
 
-    const tx = api.tx.rmrkCore.acceptNft(collectionId, nftId, newOwnerObj);
-    const events = await executeTransaction(api, issuer, tx);
+  const tx = api.tx.rmrkCore.acceptNft(collectionId, nftId, newOwnerObj);
+  const events = await executeTransaction(api, issuer, tx);
 
-    const acceptResult = extractRmrkCoreTxResult(events, "NFTAccepted", (data) => {
-        return {
-            recipient: data[1] as NftOwner,
-            collectionId: parseInt(data[2].toString(), 10),
-            nftId: parseInt(data[3].toString(), 10)
-        };
-    });
+  const acceptResult = extractRmrkCoreTxResult(events, 'NFTAccepted', (data) => {
+    return {
+      recipient: data[1] as NftOwner,
+      collectionId: parseInt(data[2].toString(), 10),
+      nftId: parseInt(data[3].toString(), 10),
+    };
+  });
 
-    expect(acceptResult.success, 'Error: Unable to accept NFT').to.be.true;
-    const acceptData = acceptResult.successData!;
+  expect(acceptResult.success, 'Error: Unable to accept NFT').to.be.true;
+  const acceptData = acceptResult.successData!;
 
-    expect(acceptData.recipient.eq(newOwnerObj), 'Error: Invalid NFT recipient (from event data)')
-        .to.be.true;
+  expect(acceptData.recipient.eq(newOwnerObj), 'Error: Invalid NFT recipient (from event data)')
+    .to.be.true;
 
-    expect(acceptData.collectionId)
-        .to.be.equal(collectionId, 'Error: Invalid collection ID (from event data)');
+  expect(acceptData.collectionId)
+    .to.be.equal(collectionId, 'Error: Invalid collection ID (from event data)');
 
-    expect(acceptData.nftId)
-        .to.be.equal(nftId, 'Error: Invalid NFT ID (from event data)');
+  expect(acceptData.nftId)
+    .to.be.equal(nftId, 'Error: Invalid NFT ID (from event data)');
 
-    const nftBefore = nftBeforeOpt.unwrap();
+  const nftBefore = nftBeforeOpt.unwrap();
 
-    const isPendingBeforeAccept = nftBefore.pending.isTrue;
+  const isPendingBeforeAccept = nftBefore.pending.isTrue;
 
-    const nftAfter = (await getNft(api, collectionId, nftId)).unwrap();
-    const isPendingAfterAccept = nftAfter.pending.isTrue;
+  const nftAfter = (await getNft(api, collectionId, nftId)).unwrap();
+  const isPendingAfterAccept = nftAfter.pending.isTrue;
 
-    expect(isPendingBeforeAccept, 'Error: NFT should be pending to be accepted')
-        .to.be.true;
+  expect(isPendingBeforeAccept, 'Error: NFT should be pending to be accepted')
+    .to.be.true;
 
-    expect(isPendingAfterAccept, 'Error: NFT should NOT be pending after accept')
-        .to.be.false;
+  expect(isPendingAfterAccept, 'Error: NFT should NOT be pending after accept')
+    .to.be.false;
 
-    const isOwnedInUniques = await isNftOwnedBy(api, newOwner, collectionId, nftId);
-    expect(isOwnedInUniques, `Error: created NFT is not actually owned by ${newOwner.toString()}`)
-        .to.be.true;
+  const isOwnedInUniques = await isNftOwnedBy(api, newOwner, collectionId, nftId);
+  expect(isOwnedInUniques, `Error: created NFT is not actually owned by ${newOwner.toString()}`)
+    .to.be.true;
 }
 
 export async function rejectNft(
-    api: ApiPromise,
-    issuerUri: string,
-    collectionId: number,
-    nftId: number,
+  api: ApiPromise,
+  issuerUri: string,
+  collectionId: number,
+  nftId: number,
 ) {
-    const ss58Format = api.registry.getChainProperties()!.toJSON().ss58Format;
-    const issuer = privateKey(issuerUri, Number(ss58Format));
-    let nftBeforeOpt = await getNft(api, collectionId, nftId);
+  const ss58Format = api.registry.getChainProperties()!.toJSON().ss58Format;
+  const issuer = privateKey(issuerUri, Number(ss58Format));
+  const nftBeforeOpt = await getNft(api, collectionId, nftId);
 
-    const tx = api.tx.rmrkCore.rejectNft(collectionId, nftId);
-    const events = await executeTransaction(api, issuer, tx);
-    const rejectResult = extractRmrkCoreTxResult(events, "NFTRejected", (data) => {
-        return {
-            collectionId: parseInt(data[1].toString(), 10),
-            nftId: parseInt(data[2].toString(), 10)
-        };
-    });
+  const tx = api.tx.rmrkCore.rejectNft(collectionId, nftId);
+  const events = await executeTransaction(api, issuer, tx);
+  const rejectResult = extractRmrkCoreTxResult(events, 'NFTRejected', (data) => {
+    return {
+      collectionId: parseInt(data[1].toString(), 10),
+      nftId: parseInt(data[2].toString(), 10),
+    };
+  });
 
-    const rejectData = rejectResult.successData!;
+  const rejectData = rejectResult.successData!;
 
-    expect(rejectData.collectionId)
-        .to.be.equal(collectionId, 'Error: Invalid collection ID (from event data)');
+  expect(rejectData.collectionId)
+    .to.be.equal(collectionId, 'Error: Invalid collection ID (from event data)');
 
-    expect(rejectData.nftId)
-        .to.be.equal(nftId, 'Error: Invalid NFT ID (from event data)');
+  expect(rejectData.nftId)
+    .to.be.equal(nftId, 'Error: Invalid NFT ID (from event data)');
 
-    const nftBefore = nftBeforeOpt.unwrap();
+  const nftBefore = nftBeforeOpt.unwrap();
 
-    const isPendingBeforeReject = nftBefore.pending.isTrue;
+  const isPendingBeforeReject = nftBefore.pending.isTrue;
 
-    const nftAfter = await getNft(api, collectionId, nftId);
+  const nftAfter = await getNft(api, collectionId, nftId);
 
-    expect(isPendingBeforeReject, 'Error: NFT should be pending to be rejected')
-        .to.be.true;
+  expect(isPendingBeforeReject, 'Error: NFT should be pending to be rejected')
+    .to.be.true;
 
-    expect(nftAfter.isNone, 'Error: NFT should be burned after reject')
-        .to.be.true;
+  expect(nftAfter.isNone, 'Error: NFT should be burned after reject')
+    .to.be.true;
 }
 
 export async function createBase(
-    api: ApiPromise,
-    issuerUri: string,
-    baseType: string,
-    symbol: string,
-    parts: object[]
+  api: ApiPromise,
+  issuerUri: string,
+  baseType: string,
+  symbol: string,
+  parts: object[],
 ): Promise<number> {
-    let baseId = 0;
-    const ss58Format = api.registry.getChainProperties()!.toJSON().ss58Format;
-    const issuer = privateKey(issuerUri, Number(ss58Format));
+  let baseId = 0;
+  const ss58Format = api.registry.getChainProperties()!.toJSON().ss58Format;
+  const issuer = privateKey(issuerUri, Number(ss58Format));
 
-    const partTypes = api.createType("Vec<RmrkTraitsPartPartType>", parts) as Vec<PartType>;
+  const partTypes = api.createType('Vec<RmrkTraitsPartPartType>', parts) as Vec<PartType>;
 
-    const tx = api.tx.rmrkEquip.createBase(baseType, symbol, partTypes);
-    const events = await executeTransaction(api, issuer, tx);
+  const tx = api.tx.rmrkEquip.createBase(baseType, symbol, partTypes);
+  const events = await executeTransaction(api, issuer, tx);
 
-    const baseResult = extractRmrkEquipTxResult(
-        events, 'BaseCreated', (data) => {
-            return parseInt(data[1].toString(), 10);
-        }
-    );
+  const baseResult = extractRmrkEquipTxResult(events, 'BaseCreated', (data) => {
+    return parseInt(data[1].toString(), 10);
+  });
 
-    expect(baseResult.success, 'Error: Unable to create Base')
-        .to.be.true;
+  expect(baseResult.success, 'Error: Unable to create Base')
+    .to.be.true;
 
-    baseId = baseResult.successData!;
-    const baseOptional = await getBase(api, baseId);
+  baseId = baseResult.successData!;
+  const baseOptional = await getBase(api, baseId);
 
-    expect(baseOptional.isSome, 'Error: Unable to fetch created Base')
-        .to.be.true;
+  expect(baseOptional.isSome, 'Error: Unable to fetch created Base')
+    .to.be.true;
 
-    const base = baseOptional.unwrap();
-    const baseParts = await getParts(api, baseId);
+  const base = baseOptional.unwrap();
+  const baseParts = await getParts(api, baseId);
 
-    expect(base.issuer.toString()).to.be.equal(issuer.address, "Error: Invalid Base issuer");
-    expect(base.baseType.toUtf8()).to.be.equal(baseType, "Error: Invalid Base type");
-    expect(base.symbol.toUtf8()).to.be.equal(symbol, "Error: Invalid Base symbol");
-    expect(partTypes.eq(baseParts), "Error: Received invalid base parts").to.be.true;
+  expect(base.issuer.toString()).to.be.equal(issuer.address, 'Error: Invalid Base issuer');
+  expect(base.baseType.toUtf8()).to.be.equal(baseType, 'Error: Invalid Base type');
+  expect(base.symbol.toUtf8()).to.be.equal(symbol, 'Error: Invalid Base symbol');
+  expect(partTypes.eq(baseParts), 'Error: Received invalid base parts').to.be.true;
 
-    return baseId;
+  return baseId;
 }
 
 export async function setResourcePriorities(
-    api: ApiPromise,
-    issuerUri: string,
-    collectionId: number,
-    nftId: number,
-    priorities: number[]
+  api: ApiPromise,
+  issuerUri: string,
+  collectionId: number,
+  nftId: number,
+  priorities: number[],
 ) {
-    const ss58Format = api.registry.getChainProperties()!.toJSON().ss58Format;
-    const issuer = privateKey(issuerUri, Number(ss58Format));
+  const ss58Format = api.registry.getChainProperties()!.toJSON().ss58Format;
+  const issuer = privateKey(issuerUri, Number(ss58Format));
 
-    const prioritiesVec = api.createType('Vec<u32>', priorities);
-    const tx = api.tx.rmrkCore.setPriority(collectionId, nftId, prioritiesVec);
-    const events = await executeTransaction(api, issuer, tx);
+  const prioritiesVec = api.createType('Vec<u32>', priorities);
+  const tx = api.tx.rmrkCore.setPriority(collectionId, nftId, prioritiesVec);
+  const events = await executeTransaction(api, issuer, tx);
 
-    const prioResult = extractRmrkCoreTxResult(events, 'PrioritySet', (data) => {
-        return {
-            collectionId: parseInt(data[0].toString(), 10),
-            nftId: parseInt(data[1].toString(), 10)
-        };
-    });
+  const prioResult = extractRmrkCoreTxResult(events, 'PrioritySet', (data) => {
+    return {
+      collectionId: parseInt(data[0].toString(), 10),
+      nftId: parseInt(data[1].toString(), 10),
+    };
+  });
 
-    expect(prioResult.success, 'Error: Unable to set resource priorities').to.be.true;
-    const eventData = prioResult.successData!;
+  expect(prioResult.success, 'Error: Unable to set resource priorities').to.be.true;
+  const eventData = prioResult.successData!;
 
-    expect(eventData.collectionId)
-        .to.be.equal(collectionId, 'Error: Invalid collection ID (set priorities event data)');
+  expect(eventData.collectionId)
+    .to.be.equal(collectionId, 'Error: Invalid collection ID (set priorities event data)');
 
-    expect(eventData.nftId).to.be.equal(nftId, 'Error: Invalid NFT ID (set priorities event data');
+  expect(eventData.nftId).to.be.equal(nftId, 'Error: Invalid NFT ID (set priorities event data');
 
-    for (var i = 0; i < priorities.length; i++) {
-        const resourceId = priorities[i];
+  for (let i = 0; i < priorities.length; i++) {
+    const resourceId = priorities[i];
 
-        const fetchedPrio = await getResourcePriority(api, collectionId, nftId, resourceId);
-        expect(fetchedPrio).to.be.equal(i, 'Error: Invalid priorities are set');
-    }
+    const fetchedPrio = await getResourcePriority(api, collectionId, nftId, resourceId);
+    expect(fetchedPrio).to.be.equal(i, 'Error: Invalid priorities are set');
+  }
 
 }
 
 export async function setEquippableList(
-    api: ApiPromise,
-    issuerUri: string,
-    baseId: number,
-    slotId: number,
-    equippableList: "All" | "Empty" | { 'Custom': number[] }
+  api: ApiPromise,
+  issuerUri: string,
+  baseId: number,
+  slotId: number,
+  equippableList: 'All' | 'Empty' | { 'Custom': number[] },
 ) {
-    const ss58Format = api.registry.getChainProperties()!.toJSON().ss58Format;
-    const issuer = privateKey(issuerUri, Number(ss58Format));
-    const equippable = api.createType('RmrkTraitsPartEquippableList', equippableList) as EquippableList;
+  const ss58Format = api.registry.getChainProperties()!.toJSON().ss58Format;
+  const issuer = privateKey(issuerUri, Number(ss58Format));
+  const equippable = api.createType('RmrkTraitsPartEquippableList', equippableList) as EquippableList;
 
-    const tx = api.tx.rmrkEquip.equippable(baseId, slotId, equippable);
-    const events = await executeTransaction(api, issuer, tx);
+  const tx = api.tx.rmrkEquip.equippable(baseId, slotId, equippable);
+  const events = await executeTransaction(api, issuer, tx);
 
-    const equipListResult = extractRmrkEquipTxResult(events, 'EquippablesUpdated', (data) => {
-        return {
-            baseId: parseInt(data[0].toString(), 10),
-            slotId: parseInt(data[1].toString(), 10)
-        };
-    });
+  const equipListResult = extractRmrkEquipTxResult(events, 'EquippablesUpdated', (data) => {
+    return {
+      baseId: parseInt(data[0].toString(), 10),
+      slotId: parseInt(data[1].toString(), 10),
+    };
+  });
 
-    expect(equipListResult.success, 'Error: unable to update equippable list').to.be.true;
-    const updateEvent = equipListResult.successData!;
+  expect(equipListResult.success, 'Error: unable to update equippable list').to.be.true;
+  const updateEvent = equipListResult.successData!;
 
-    expect(updateEvent.baseId)
-        .to.be.equal(baseId, 'Error: invalid base ID from update equippable event');
+  expect(updateEvent.baseId)
+    .to.be.equal(baseId, 'Error: invalid base ID from update equippable event');
 
-    expect(updateEvent.slotId)
-        .to.be.equal(slotId, 'Error: invalid base ID from update equippable event');
+  expect(updateEvent.slotId)
+    .to.be.equal(slotId, 'Error: invalid base ID from update equippable event');
 
-    const fetchedEquippableList = await getEquippableList(api, baseId, slotId);
+  const fetchedEquippableList = await getEquippableList(api, baseId, slotId);
 
-    expect(fetchedEquippableList, 'Error: unable to fetch equippable list').to.be.not.null;
-    if (fetchedEquippableList) {
-        expect(fetchedEquippableList)
-            .to.be.deep.equal(equippableList, 'Error: invalid equippable list was set');
-    }
+  expect(fetchedEquippableList, 'Error: unable to fetch equippable list').to.be.not.null;
+  if (fetchedEquippableList) {
+    expect(fetchedEquippableList)
+      .to.be.deep.equal(equippableList, 'Error: invalid equippable list was set');
+  }
 }
 
 export async function addTheme(
-    api: ApiPromise,
-    issuerUri: string,
-    baseId: number,
-    themeObj: object,
-    filterKeys: string[] | null = null
+  api: ApiPromise,
+  issuerUri: string,
+  baseId: number,
+  themeObj: object,
+  filterKeys: string[] | null = null,
 ) {
-    const ss58Format = api.registry.getChainProperties()!.toJSON().ss58Format;
-    const issuer = privateKey(issuerUri, Number(ss58Format));
-    const theme = api.createType('RmrkTraitsTheme', themeObj) as Theme;
+  const ss58Format = api.registry.getChainProperties()!.toJSON().ss58Format;
+  const issuer = privateKey(issuerUri, Number(ss58Format));
+  const theme = api.createType('RmrkTraitsTheme', themeObj) as Theme;
 
-    const tx = api.tx.rmrkEquip.themeAdd(baseId, theme);
-    const events = await executeTransaction(api, issuer, tx);
+  const tx = api.tx.rmrkEquip.themeAdd(baseId, theme);
+  const events = await executeTransaction(api, issuer, tx);
 
-    expect(isTxResultSuccess(events), 'Error: Unable to add Theme').to.be.true;
+  expect(isTxResultSuccess(events), 'Error: Unable to add Theme').to.be.true;
 
-    const fetchedThemeOpt = await getTheme(api, baseId, theme.name.toUtf8(), null);
+  const fetchedThemeOpt = await getTheme(api, baseId, theme.name.toUtf8(), null);
 
-    expect(fetchedThemeOpt.isSome, 'Error: Unable to fetch theme').to.be.true;
+  expect(fetchedThemeOpt.isSome, 'Error: Unable to fetch theme').to.be.true;
 
-    const fetchedTheme = fetchedThemeOpt.unwrap();
+  const fetchedTheme = fetchedThemeOpt.unwrap();
 
-    expect(theme.name.eq(fetchedTheme.name), 'Error: Invalid theme name').to.be.true;
+  expect(theme.name.eq(fetchedTheme.name), 'Error: Invalid theme name').to.be.true;
 
-    for (var i = 0; i < theme.properties.length; i++) {
-        const property = theme.properties[i];
-        const propertyKey = property.key.toUtf8();
+  for (let i = 0; i < theme.properties.length; i++) {
+    const property = theme.properties[i];
+    const propertyKey = property.key.toUtf8();
 
-        const propertyFoundCount = fetchedTheme.properties.filter(
-            (fetchedProp) => property.key.eq(fetchedProp.key)
-        ).length;
+    const propertyFoundCount = fetchedTheme.properties.filter((fetchedProp) => property.key.eq(fetchedProp.key)).length;
 
-        expect(propertyFoundCount > 1, `Error: Too many properties with key ${propertyKey} found`)
-            .to.be.false;
-
-        if (filterKeys) {
-            const isFiltered = fetchedTheme.properties.find(
-                (fetchedProp) => fetchedProp.key.eq(property.key)
-            ) === undefined;
+    expect(propertyFoundCount > 1, `Error: Too many properties with key ${propertyKey} found`)
+      .to.be.false;
 
-            if (isFiltered) {
-                expect(propertyFoundCount === 0, `Error: Unexpected filtered key ${propertyKey}`)
-                    .to.be.true;
-                continue;
-            }
-        }
+    if (filterKeys) {
+      const isFiltered = fetchedTheme.properties.find((fetchedProp) => fetchedProp.key.eq(property.key)) === undefined;
 
-        expect(propertyFoundCount === 1, `Error: The property with key ${propertyKey} is not found`)
-            .to.be.true;
+      if (isFiltered) {
+        expect(propertyFoundCount === 0, `Error: Unexpected filtered key ${propertyKey}`)
+          .to.be.true;
+        continue;
+      }
     }
+
+    expect(propertyFoundCount === 1, `Error: The property with key ${propertyKey} is not found`)
+      .to.be.true;
+  }
 }
 
 export async function lockCollection(
   api: ApiPromise,
   issuerUri: string,
   collectionId: number,
-  max: number = 0
+  max = 0,
 ) {
   const ss58Format = api.registry.getChainProperties()!.toJSON().ss58Format;
   const issuer = privateKey(issuerUri, Number(ss58Format));
   const tx = api.tx.rmrkCore.lockCollection(collectionId);
   const events = await executeTransaction(api, issuer, tx);
-  const lockResult = extractRmrkCoreTxResult(
-      events, 'CollectionLocked', (data) => {
-          return parseInt(data[1].toString(), 10);
-      }
-  );
+  const lockResult = extractRmrkCoreTxResult(events, 'CollectionLocked', (data) => {
+    return parseInt(data[1].toString(), 10);
+  });
   expect(lockResult.success, 'Error: Unable to lock a collection').to.be.true;
   expect(lockResult.successData!, 'Error: Invalid collection was locked')
-      .to.be.eq(collectionId);
+    .to.be.eq(collectionId);
 
   await getCollection(api, collectionId).then((collectionOption) => {
     const collection = collectionOption.unwrap();
@@ -718,23 +702,21 @@
   issuerUri: string,
   collectionId: number,
   key: string,
-  value: string
+  value: string,
 ) {
   const ss58Format = api.registry.getChainProperties()!.toJSON().ss58Format;
   const alice = privateKey(issuerUri, Number(ss58Format));
 
   const tx = api.tx.rmrkCore.setProperty(collectionId, null, key, value);
   const events = await executeTransaction(api, alice, tx);
-  const propResult = extractRmrkCoreTxResult(
-        events, 'PropertySet', (data) => {
-            return {
-                collectionId: parseInt(data[0].toString(), 10),
-                nftId: data[1] as Option<u32>,
-                key: data[2] as Bytes,
-                value: data[3] as Bytes
-            };
-        }
-    );
+  const propResult = extractRmrkCoreTxResult(events, 'PropertySet', (data) => {
+    return {
+      collectionId: parseInt(data[0].toString(), 10),
+      nftId: data[1] as Option<u32>,
+      key: data[2] as Bytes,
+      value: data[3] as Bytes,
+    };
+  });
 
   expect(propResult.success, 'Error: Unable to set collection property').to.be.true;
   const eventData = propResult.successData!;
@@ -760,18 +742,16 @@
   api: ApiPromise,
   issuerUri: string,
   collectionId: number,
-  nftId: number
+  nftId: number,
 ) {
   const ss58Format = api.registry.getChainProperties()!.toJSON().ss58Format;
   const issuer = privateKey(issuerUri, Number(ss58Format));
   const maxBurns = 10;
   const tx = api.tx.rmrkCore.burnNft(collectionId, nftId, maxBurns);
   const events = await executeTransaction(api, issuer, tx);
-  const burnResult = extractRmrkCoreTxResult(
-    events, 'NFTBurned', (data) => {
-      return parseInt(data[1].toString(), 10);
-    }
-  );
+  const burnResult = extractRmrkCoreTxResult(events, 'NFTBurned', (data) => {
+    return parseInt(data[1].toString(), 10);
+  });
 
   expect(burnResult.success, 'Error: Unable to burn an NFT').to.be.true;
   expect(burnResult.successData!, 'Error: Invalid NFT was burned')
@@ -782,185 +762,181 @@
 }
 
 export async function acceptNftResource(
-    api: ApiPromise,
-    issuerUri: string,
-    collectionId: number,
-    nftId: number,
-    resourceId: number,
+  api: ApiPromise,
+  issuerUri: string,
+  collectionId: number,
+  nftId: number,
+  resourceId: number,
 ) {
-    const ss58Format = api.registry.getChainProperties()!.toJSON().ss58Format;
-    const issuer = privateKey(issuerUri, Number(ss58Format));
+  const ss58Format = api.registry.getChainProperties()!.toJSON().ss58Format;
+  const issuer = privateKey(issuerUri, Number(ss58Format));
 
-    const tx = api.tx.rmrkCore.acceptResource(
-        collectionId,
-        nftId,
-        resourceId,
-    );
+  const tx = api.tx.rmrkCore.acceptResource(
+    collectionId,
+    nftId,
+    resourceId,
+  );
 
-    const events = await executeTransaction(api, issuer, tx);
-    const acceptResult = extractRmrkCoreTxResult(
-        events, 'ResourceAccepted', (data) => {
-            return {
-                nftId: parseInt(data[0].toString(), 10),
-                resourceId: parseInt(data[1].toString(), 10)
-            };
-        }
-    )
+  const events = await executeTransaction(api, issuer, tx);
+  const acceptResult = extractRmrkCoreTxResult(events, 'ResourceAccepted', (data) => {
+    return {
+      nftId: parseInt(data[0].toString(), 10),
+      resourceId: parseInt(data[1].toString(), 10),
+    };
+  });
 
-    expect(acceptResult.success, 'Error: Unable to accept a resource').to.be.true;
-    expect(acceptResult.successData!.nftId, 'Error: Invalid NFT ID while accepting a resource')
-        .to.be.eq(nftId);
-    expect(acceptResult.successData!.resourceId, 'Error: Invalid resource ID while accepting a resource')
-        .to.be.eq(resourceId);
+  expect(acceptResult.success, 'Error: Unable to accept a resource').to.be.true;
+  expect(acceptResult.successData!.nftId, 'Error: Invalid NFT ID while accepting a resource')
+    .to.be.eq(nftId);
+  expect(acceptResult.successData!.resourceId, 'Error: Invalid resource ID while accepting a resource')
+    .to.be.eq(resourceId);
 
-    const resource = await getResourceById(api, collectionId, nftId, resourceId);
-    checkResourceStatus(resource, "added");
+  const resource = await getResourceById(api, collectionId, nftId, resourceId);
+  checkResourceStatus(resource, 'added');
 }
 
 async function executeResourceCreation(
-    api: ApiPromise,
-    issuer: IKeyringPair,
-    tx: any,
-    collectionId: number,
-    nftId: number,
-    expectedStatus: "pending" | "added"
+  api: ApiPromise,
+  issuer: IKeyringPair,
+  tx: any,
+  collectionId: number,
+  nftId: number,
+  expectedStatus: 'pending' | 'added',
 ): Promise<ResourceInfo> {
-    const events = await executeTransaction(api, issuer, tx);
+  const events = await executeTransaction(api, issuer, tx);
 
-    const resourceResult = extractRmrkCoreTxResult(
-        events, 'ResourceAdded', (data) => {
-            return parseInt(data[1].toString(), 10);
-        }
-    );
-    expect(resourceResult.success, 'Error: Unable to add resource').to.be.true;
-    const resourceId = resourceResult.successData!;
+  const resourceResult = extractRmrkCoreTxResult(events, 'ResourceAdded', (data) => {
+    return parseInt(data[1].toString(), 10);
+  });
+  expect(resourceResult.success, 'Error: Unable to add resource').to.be.true;
+  const resourceId = resourceResult.successData!;
 
-    const resource = await getResourceById(api, collectionId, nftId, resourceId);
-    checkResourceStatus(resource, expectedStatus);
+  const resource = await getResourceById(api, collectionId, nftId, resourceId);
+  checkResourceStatus(resource, expectedStatus);
 
-    return resource;
+  return resource;
 }
 
 export async function addNftBasicResource(
-    api: ApiPromise,
-    issuerUri: string,
-    expectedStatus: "pending" | "added",
-    collectionId: number,
-    nftId: number,
-    src: string | null,
-    metadata: string | null,
-    license: string | null,
-    thumb: string | null
+  api: ApiPromise,
+  issuerUri: string,
+  expectedStatus: 'pending' | 'added',
+  collectionId: number,
+  nftId: number,
+  src: string | null,
+  metadata: string | null,
+  license: string | null,
+  thumb: string | null,
 ): Promise<number> {
-    const ss58Format = api.registry.getChainProperties()!.toJSON().ss58Format;
-    const issuer = privateKey(issuerUri, Number(ss58Format));
+  const ss58Format = api.registry.getChainProperties()!.toJSON().ss58Format;
+  const issuer = privateKey(issuerUri, Number(ss58Format));
 
-    const basicResource = api.createType('RmrkTraitsResourceBasicResource', {
-        src: src,
-        metadata: metadata,
-        license: license,
-        thumb: thumb
-    }) as BasicResource;
+  const basicResource = api.createType('RmrkTraitsResourceBasicResource', {
+    src: src,
+    metadata: metadata,
+    license: license,
+    thumb: thumb,
+  }) as BasicResource;
 
-    const tx = api.tx.rmrkCore.addBasicResource(
-        collectionId,
-        nftId,
-        basicResource
-    );
+  const tx = api.tx.rmrkCore.addBasicResource(
+    collectionId,
+    nftId,
+    basicResource,
+  );
 
-    const resource = await executeResourceCreation(api, issuer, tx, collectionId, nftId, expectedStatus);
+  const resource = await executeResourceCreation(api, issuer, tx, collectionId, nftId, expectedStatus);
 
-    // FIXME A workaround. It seems it is a PolkadotJS bug.
-    // All of the following are `false`.
-    //
-    // console.log('>>> basic:', resource.resource.isBasic);
-    // console.log('>>> composable:', resource.resource.isComposable);
-    // console.log('>>> slot:', resource.resource.isSlot);
-    const resourceJson = resource.resource.toHuman() as any;
+  // FIXME A workaround. It seems it is a PolkadotJS bug.
+  // All of the following are `false`.
+  //
+  // console.log('>>> basic:', resource.resource.isBasic);
+  // console.log('>>> composable:', resource.resource.isComposable);
+  // console.log('>>> slot:', resource.resource.isSlot);
+  const resourceJson = resource.resource.toHuman() as any;
 
-    expect(resourceJson.hasOwnProperty('Basic'), 'Error: Expected basic resource type')
-        .to.be.true;
+  expect(resourceJson.hasOwnProperty('Basic'), 'Error: Expected basic resource type')
+    .to.be.true;
 
-    const recvBasicRes = resourceJson['Basic'];
+  const recvBasicRes = resourceJson['Basic'];
 
-    expect(recvBasicRes.src, 'Error: Invalid basic resource src')
-      .to.be.eq(src);
-    expect(recvBasicRes.metadata, 'Error: basic first resource metadata')
-      .to.be.eq(metadata);
-    expect(recvBasicRes.license, 'Error: basic first resource license')
-      .to.be.eq(license);
-    expect(recvBasicRes.thumb, 'Error: basic first resource thumb')
-      .to.be.eq(thumb);
+  expect(recvBasicRes.src, 'Error: Invalid basic resource src')
+    .to.be.eq(src);
+  expect(recvBasicRes.metadata, 'Error: basic first resource metadata')
+    .to.be.eq(metadata);
+  expect(recvBasicRes.license, 'Error: basic first resource license')
+    .to.be.eq(license);
+  expect(recvBasicRes.thumb, 'Error: basic first resource thumb')
+    .to.be.eq(thumb);
 
-    return resource.id.toNumber();
+  return resource.id.toNumber();
 }
 
 export async function addNftComposableResource(
-    api: ApiPromise,
-    issuerUri: string,
-    expectedStatus: "pending" | "added",
-    collectionId: number,
-    nftId: number,
-    parts: number[],
-    baseId: number,
-    src: string | null,
-    metadata: string | null,
-    license: string | null,
-    thumb: string | null
+  api: ApiPromise,
+  issuerUri: string,
+  expectedStatus: 'pending' | 'added',
+  collectionId: number,
+  nftId: number,
+  parts: number[],
+  baseId: number,
+  src: string | null,
+  metadata: string | null,
+  license: string | null,
+  thumb: string | null,
 ): Promise<number> {
-    const ss58Format = api.registry.getChainProperties()!.toJSON().ss58Format;
-    const issuer = privateKey(issuerUri, Number(ss58Format));
+  const ss58Format = api.registry.getChainProperties()!.toJSON().ss58Format;
+  const issuer = privateKey(issuerUri, Number(ss58Format));
 
-    const composableResource = api.createType('RmrkTraitsResourceComposableResource', {
-        parts: parts, // api.createType('Vec<u32>', parts),
-        base: baseId,
-        src: src,
-        metadata: metadata,
-        license: license,
-        thumb: thumb
-    }) as ComposableResource;
+  const composableResource = api.createType('RmrkTraitsResourceComposableResource', {
+    parts: parts, // api.createType('Vec<u32>', parts),
+    base: baseId,
+    src: src,
+    metadata: metadata,
+    license: license,
+    thumb: thumb,
+  }) as ComposableResource;
 
-    const tx = api.tx.rmrkCore.addComposableResource(
-        collectionId,
-        nftId,
-        composableResource
-    );
+  const tx = api.tx.rmrkCore.addComposableResource(
+    collectionId,
+    nftId,
+    composableResource,
+  );
 
-    const resource = await executeResourceCreation(api, issuer, tx, collectionId, nftId, expectedStatus);
+  const resource = await executeResourceCreation(api, issuer, tx, collectionId, nftId, expectedStatus);
 
-    // FIXME A workaround. It seems it is a PolkadotJS bug.
-    // All of the following are `false`.
-    //
-    // console.log('>>> basic:', resource.resource.isBasic);
-    // console.log('>>> composable:', resource.resource.isComposable);
-    // console.log('>>> slot:', resource.resource.isSlot);
-    const resourceJson = resource.resource.toHuman() as any;
+  // FIXME A workaround. It seems it is a PolkadotJS bug.
+  // All of the following are `false`.
+  //
+  // console.log('>>> basic:', resource.resource.isBasic);
+  // console.log('>>> composable:', resource.resource.isComposable);
+  // console.log('>>> slot:', resource.resource.isSlot);
+  const resourceJson = resource.resource.toHuman() as any;
 
-    expect(resourceJson.hasOwnProperty('Composable'), 'Error: Expected composable resource type')
-        .to.be.true;
+  expect(resourceJson.hasOwnProperty('Composable'), 'Error: Expected composable resource type')
+    .to.be.true;
 
-    const recvComposableRes = resourceJson['Composable'];
+  const recvComposableRes = resourceJson['Composable'];
 
-    expect(recvComposableRes.parts.toString(), 'Error: Invalid composable resource parts')
-      .to.be.eq(parts.toString());
-    expect(recvComposableRes.base, 'Error: Invalid composable resource base id')
-      .to.be.eq(baseId.toString());
-    expect(recvComposableRes.src, 'Error: Invalid composable resource src')
-      .to.be.eq(src);
-    expect(recvComposableRes.metadata, 'Error: Invalid composable resource metadata')
-      .to.be.eq(metadata);
-    expect(recvComposableRes.license, 'Error: Invalid composable resource license')
-      .to.be.eq(license);
-    expect(recvComposableRes.thumb, 'Error: Invalid composable resource thumb')
-      .to.be.eq(thumb);
+  expect(recvComposableRes.parts.toString(), 'Error: Invalid composable resource parts')
+    .to.be.eq(parts.toString());
+  expect(recvComposableRes.base, 'Error: Invalid composable resource base id')
+    .to.be.eq(baseId.toString());
+  expect(recvComposableRes.src, 'Error: Invalid composable resource src')
+    .to.be.eq(src);
+  expect(recvComposableRes.metadata, 'Error: Invalid composable resource metadata')
+    .to.be.eq(metadata);
+  expect(recvComposableRes.license, 'Error: Invalid composable resource license')
+    .to.be.eq(license);
+  expect(recvComposableRes.thumb, 'Error: Invalid composable resource thumb')
+    .to.be.eq(thumb);
 
-    return resource.id.toNumber();
+  return resource.id.toNumber();
 }
 
 export async function addNftSlotResource(
   api: ApiPromise,
   issuerUri: string,
-  expectedStatus: "pending" | "added",
+  expectedStatus: 'pending' | 'added',
   collectionId: number,
   nftId: number,
   baseId: number,
@@ -968,24 +944,24 @@
   src: string | null,
   metadata: string | null,
   license: string | null,
-  thumb: string | null
+  thumb: string | null,
 ): Promise<number>  {
   const ss58Format = api.registry.getChainProperties()!.toJSON().ss58Format;
   const issuer = privateKey(issuerUri, Number(ss58Format));
 
   const slotResource = api.createType('RmrkTraitsResourceSlotResource', {
-      base: baseId,
-      src: src,
-      metadata,
-      slot: slotId,
-      license: license,
-      thumb: thumb
+    base: baseId,
+    src: src,
+    metadata,
+    slot: slotId,
+    license: license,
+    thumb: thumb,
   }) as SlotResource;
 
   const tx = api.tx.rmrkCore.addSlotResource(
     collectionId,
     nftId,
-    slotResource
+    slotResource,
   );
 
   const resource = await executeResourceCreation(api, issuer, tx, collectionId, nftId, expectedStatus);
@@ -999,7 +975,7 @@
   const resourceJson = resource.resource.toHuman() as any;
 
   expect(resourceJson.hasOwnProperty('Slot'), 'Error: Expected slot resource type')
-        .to.be.true;
+    .to.be.true;
 
   const recvSlotRes = resourceJson['Slot'];
 
@@ -1026,22 +1002,20 @@
   equipper: NftIdTuple,
   resource: number,
   base: number,
-  slot: number
+  slot: number,
 ) {
   const ss58Format = api.registry.getChainProperties()!.toJSON().ss58Format;
   const issuer = privateKey(issuerUri, Number(ss58Format));
   const tx = api.tx.rmrkEquip.equip(item, equipper, resource, base, slot);
   const events = await executeTransaction(api, issuer, tx);
-  const equipResult = extractRmrkEquipTxResult(
-    events, 'SlotEquipped', (data) => {
-      return {
-        item_collection: parseInt(data[0].toString(), 10),
-        item_nft: parseInt(data[1].toString(), 10),
-        base_id: parseInt(data[2].toString(), 10),
-        slot_id: parseInt(data[3].toString(), 10),
-      };
-    }
-  )
+  const equipResult = extractRmrkEquipTxResult(events, 'SlotEquipped', (data) => {
+    return {
+      item_collection: parseInt(data[0].toString(), 10),
+      item_nft: parseInt(data[1].toString(), 10),
+      base_id: parseInt(data[2].toString(), 10),
+      slot_id: parseInt(data[3].toString(), 10),
+    };
+  });
   expect(equipResult.success, 'Error: Unable to equip an item').to.be.true;
   expect(equipResult.successData!.item_collection, 'Error: Invalid item collection id')
     .to.be.eq(item[0]);
@@ -1060,7 +1034,7 @@
   equipper: any,
   resource: number,
   base: number,
-  slot: number
+  slot: number,
 ) {
   const ss58Format = api.registry.getChainProperties()!.toJSON().ss58Format;
   const issuer = privateKey(issuerUri, Number(ss58Format));
@@ -1069,7 +1043,7 @@
 
   const unEquipResult = extractRmrkEquipTxResult(
     events,
-    "SlotUnequipped",
+    'SlotUnequipped',
     (data) => {
       return {
         item_collection: parseInt(data[0].toString(), 10),
@@ -1077,7 +1051,7 @@
         base_id: parseInt(data[2].toString(), 10),
         slot_id: parseInt(data[3].toString(), 10),
       };
-    }
+    },
   );
 
   expect(unEquipResult.success, 'Error: Unable to unequip an item').to.be.true;
@@ -1092,68 +1066,64 @@
 }
 
 export async function removeNftResource(
-    api: ApiPromise,
-    expectedStatus: "pending" | "removed",
-    issuerUri: string,
-    collectionId: number,
-    nftId: number,
-    resourceId: number
+  api: ApiPromise,
+  expectedStatus: 'pending' | 'removed',
+  issuerUri: string,
+  collectionId: number,
+  nftId: number,
+  resourceId: number,
 ) {
-    const ss58Format = api.registry.getChainProperties()!.toJSON().ss58Format;
-    const issuer = privateKey(issuerUri, Number(ss58Format));
+  const ss58Format = api.registry.getChainProperties()!.toJSON().ss58Format;
+  const issuer = privateKey(issuerUri, Number(ss58Format));
 
-    const tx = api.tx.rmrkCore.removeResource(collectionId, nftId, resourceId);
-    const events = await executeTransaction(api, issuer, tx);
-    const removeResult = extractRmrkCoreTxResult(
-        events, 'ResourceRemoval', (data) => {
-            return {
-                nftId: parseInt(data[0].toString(), 10),
-                resourceId: parseInt(data[1].toString(), 10)
-            };
-        }
-    )
-    expect(removeResult.success, 'Error: Unable to remove a resource').to.be.true;
-    expect(removeResult.successData!.nftId, 'Error: Invalid NFT Id while removing a resource')
-        .to.be.eq(nftId);
-    expect(removeResult.successData!.resourceId, 'Error: Invalid resource Id while removing a resource')
-        .to.be.eq(resourceId);
+  const tx = api.tx.rmrkCore.removeResource(collectionId, nftId, resourceId);
+  const events = await executeTransaction(api, issuer, tx);
+  const removeResult = extractRmrkCoreTxResult(events, 'ResourceRemoval', (data) => {
+    return {
+      nftId: parseInt(data[0].toString(), 10),
+      resourceId: parseInt(data[1].toString(), 10),
+    };
+  });
+  expect(removeResult.success, 'Error: Unable to remove a resource').to.be.true;
+  expect(removeResult.successData!.nftId, 'Error: Invalid NFT Id while removing a resource')
+    .to.be.eq(nftId);
+  expect(removeResult.successData!.resourceId, 'Error: Invalid resource Id while removing a resource')
+    .to.be.eq(resourceId);
 
-    let afterDeleting = await findResourceById(api, collectionId, nftId, resourceId);
+  const afterDeleting = await findResourceById(api, collectionId, nftId, resourceId);
 
-    if (expectedStatus === 'pending') {
-        expect(afterDeleting).not.to.be.null;
-        expect(afterDeleting?.pendingRemoval.isTrue).to.be.equal(true);
-    } else {
-        expect(afterDeleting).to.be.null;
-    }
+  if (expectedStatus === 'pending') {
+    expect(afterDeleting).not.to.be.null;
+    expect(afterDeleting?.pendingRemoval.isTrue).to.be.equal(true);
+  } else {
+    expect(afterDeleting).to.be.null;
+  }
 }
 
 export async function acceptResourceRemoval(
-    api: ApiPromise,
-    issuerUri: string,
-    collectionId: number,
-    nftId: number,
-    resourceId: number
+  api: ApiPromise,
+  issuerUri: string,
+  collectionId: number,
+  nftId: number,
+  resourceId: number,
 ) {
-    const ss58Format = api.registry.getChainProperties()!.toJSON().ss58Format;
-    const issuer = privateKey(issuerUri, Number(ss58Format));
+  const ss58Format = api.registry.getChainProperties()!.toJSON().ss58Format;
+  const issuer = privateKey(issuerUri, Number(ss58Format));
 
-    const tx = api.tx.rmrkCore.acceptResourceRemoval(collectionId, nftId, resourceId);
-    const events = await executeTransaction(api, issuer, tx);
-    const acceptResult = extractRmrkCoreTxResult(
-        events, 'ResourceRemovalAccepted', (data) => {
-            return {
-                nftId: parseInt(data[0].toString(), 10),
-                resourceId: parseInt(data[1].toString(), 10)
-            };
-        }
-    )
-    expect(acceptResult.success, 'Error: Unable to accept a resource').to.be.true;
-    expect(acceptResult.successData!.nftId, 'Error: Invalid NFT Id while accepting a resource')
-        .to.be.eq(nftId);
-    expect(acceptResult.successData!.resourceId, 'Error: Invalid resource Id while accepting a resource')
-        .to.be.eq(resourceId);
+  const tx = api.tx.rmrkCore.acceptResourceRemoval(collectionId, nftId, resourceId);
+  const events = await executeTransaction(api, issuer, tx);
+  const acceptResult = extractRmrkCoreTxResult(events, 'ResourceRemovalAccepted', (data) => {
+    return {
+      nftId: parseInt(data[0].toString(), 10),
+      resourceId: parseInt(data[1].toString(), 10),
+    };
+  });
+  expect(acceptResult.success, 'Error: Unable to accept a resource').to.be.true;
+  expect(acceptResult.successData!.nftId, 'Error: Invalid NFT Id while accepting a resource')
+    .to.be.eq(nftId);
+  expect(acceptResult.successData!.resourceId, 'Error: Invalid resource Id while accepting a resource')
+    .to.be.eq(resourceId);
 
-    let afterDeleting = await findResourceById(api, collectionId, nftId, resourceId);
-    expect(afterDeleting, 'Error: resource deleting failed').to.be.null;
+  const afterDeleting = await findResourceById(api, collectionId, nftId, resourceId);
+  expect(afterDeleting, 'Error: resource deleting failed').to.be.null;
 }
modifiedtests/src/substrate/substrate-api.tsdiffbeforeafterboth
--- a/tests/src/substrate/substrate-api.ts
+++ b/tests/src/substrate/substrate-api.ts
@@ -61,7 +61,7 @@
 
 export async function getApiConnection(settings: ApiOptions | undefined = undefined): Promise<ApiPromise> {
   settings = settings || defaultApiOptions();
-  let api = new ApiPromise(settings);
+  const api = new ApiPromise(settings);
 
   if (api) {
     await api.isReadyOrError;