1import { IKeyringPair } from '@polkadot/types/types';2import chai from 'chai';3import chaiAsPromised from 'chai-as-promised';4import privateKey from '../substrate/privateKey';5import usingApi, { submitTransactionAsync } from '../substrate/substrate-api';6import {7 createCollectionExpectSuccess,8 createItemExpectSuccess,9} from '../util/helpers';1011chai.use(chaiAsPromised);12const expect = chai.expect;13let Alice: IKeyringPair;14let Bob: IKeyringPair;15let Ferdie: IKeyringPair;1617before(async () => {18 await usingApi(async () => {19 Alice = privateKey('//Alice');20 Bob = privateKey('//Bob');21 Ferdie = privateKey('//Ferdie');22 });23});2425describe('Admin vs Owner changes token: ', () => {26 27 it('The collection admin changes the owner of the token and in the same block the current owner transfers the token to another address ', async () => {28 await usingApi(async (api) => {29 const collectionId = await createCollectionExpectSuccess();30 const changeAdminTxBob = api.tx.nft.addCollectionAdmin(collectionId, Bob.address);31 await submitTransactionAsync(Alice, changeAdminTxBob);32 const timeoutPromise = (timeout: number) => new Promise((resolve) => setTimeout(resolve, timeout));33 const changeAdminTxFerdie = api.tx.nft.addCollectionAdmin(collectionId, Ferdie.address);34 await submitTransactionAsync(Bob, changeAdminTxFerdie);35 const itemId = await createItemExpectSuccess(Ferdie, collectionId, 'NFT');36 37 const changeOwner = api.tx.nft.transferFrom(Ferdie.address, Bob.address, collectionId, itemId, 1);38 const approve = api.tx.nft.approve(Bob.address, collectionId, itemId, 1);39 const sendItem = api.tx.nft.transfer(Alice.address, collectionId, itemId, 1);40 await Promise.all([41 changeOwner.signAndSend(Alice),42 approve.signAndSend(Bob),43 sendItem.signAndSend(Ferdie),44 ]);45 const itemBefore: any = await api.query.nft.nftItemList(collectionId, itemId);46 expect(itemBefore.Owner).not.to.be.eq(Bob.address);47 await timeoutPromise(20000);48 });49 });50});