git.delta.rocks / unique-network / refs/commits / 415e2e02d914

1// Copyright 2019-2022 Unique Network (Gibraltar) Ltd.2// This file is part of Unique Network.34// Unique Network is free software: you can redistribute it and/or modify5// it under the terms of the GNU General Public License as published by6// the Free Software Foundation, either version 3 of the License, or7// (at your option) any later version.89// Unique Network is distributed in the hope that it will be useful,10// but WITHOUT ANY WARRANTY; without even the implied warranty of11// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the12// GNU General Public License for more details.1314// You should have received a copy of the GNU General Public License15// along with Unique Network. If not, see <http://www.gnu.org/licenses/>.1617import {IKeyringPair} from '@polkadot/types/types';18import {expect, itSub, usingPlaygrounds} from '../util/playgrounds';19import {ITokenNonfungible} from '../util/playgrounds/types';20import {UniqueHelper} from '../util/playgrounds/unique';2122/**23 * ```dot24 * 4 -> 3 -> 2 -> 125 * 7 -> 6 -> 5 -> 226 * 8 -> 527 * ```28 */29async function buildComplexObjectGraph(helper: UniqueHelper, sender: IKeyringPair): Promise<ITokenNonfungible[]> {30  const collection = await helper.nft.mintCollection(sender, {permissions: {nesting: {tokenOwner: true}}});31  const tokens = await collection.mintMultipleTokens(sender, Array(8).fill({owner: {Substrate: sender.address}}));3233  await tokens[7].nest(sender, tokens[4]);34  await tokens[6].nest(sender, tokens[5]);35  await tokens[5].nest(sender, tokens[4]);36  await tokens[4].nest(sender, tokens[1]);37  await tokens[3].nest(sender, tokens[2]);38  await tokens[2].nest(sender, tokens[1]);39  await tokens[1].nest(sender, tokens[0]);4041  return tokens;42}4344describe('Graphs', () => {45  let alice: IKeyringPair;4647  before(async () => {48    await usingPlaygrounds(async (helper, privateKey) => {49      const donor = privateKey('//Alice');50      [alice] = await helper.arrange.createAccounts([10n], donor);51    });52  });5354  itSub('Ouroboros can\'t be created in a complex graph', async ({helper}) => {55    const tokens = await buildComplexObjectGraph(helper, alice);5657    // to self58    await expect(59      tokens[0].nest(alice, tokens[0]),60      'first transaction',  61    ).to.be.rejectedWith(/structure\.OuroborosDetected/);62    // to nested part of graph63    await expect(64      tokens[0].nest(alice, tokens[4]),65      'second transaction',66    ).to.be.rejectedWith(/structure\.OuroborosDetected/);67    await expect(68      tokens[1].transferFrom(alice, tokens[0].nestingAccount(), tokens[7].nestingAccount()),69      'third transaction',70    ).to.be.rejectedWith(/structure\.OuroborosDetected/);71  });72});