protocol/packages/dev-utils/test/blockchain_lifecycle_test.ts
2018-10-18 22:27:31 +11:00

27 lines
1.1 KiB
TypeScript

import { Web3Wrapper } from '@0x/web3-wrapper';
import * as chai from 'chai';
import 'mocha';
import { BlockchainLifecycle, web3Factory } from '../src';
const expect = chai.expect;
describe('BlockchainLifecycle tests', () => {
const provider = web3Factory.getRpcProvider({ shouldUseInProcessGanache: true });
const web3Wrapper = new Web3Wrapper(provider);
const blockchainLifecycle = new BlockchainLifecycle(web3Wrapper);
describe('#startAsync/revertAsync', () => {
it('reverts changes in between', async () => {
const blockNumberBefore = await web3Wrapper.getBlockNumberAsync();
await blockchainLifecycle.startAsync();
await web3Wrapper.mineBlockAsync();
const blockNumberAfter = await web3Wrapper.getBlockNumberAsync();
// tslint:disable-next-line:restrict-plus-operands
expect(blockNumberAfter).to.be.equal(blockNumberBefore + 1);
await blockchainLifecycle.revertAsync();
const blockNumberAfterRevert = await web3Wrapper.getBlockNumberAsync();
expect(blockNumberAfterRevert).to.be.equal(blockNumberBefore);
});
});
});