44 lines
2.0 KiB
TypeScript
44 lines
2.0 KiB
TypeScript
import { Web3Wrapper } from '@0x/web3-wrapper';
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import * as chai from 'chai';
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import { BlockParamLiteral } from 'ethereum-types';
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import 'mocha';
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import { web3Factory } from '../src';
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const expect = chai.expect;
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describe('RPC tests', () => {
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const provider = web3Factory.getRpcProvider({ shouldUseInProcessGanache: true });
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const web3Wrapper = new Web3Wrapper(provider);
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describe('#mineBlockAsync', () => {
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it('increases block number when called', async () => {
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const blockNumberBefore = await web3Wrapper.getBlockNumberAsync();
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await web3Wrapper.mineBlockAsync();
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const blockNumberAfter = await web3Wrapper.getBlockNumberAsync();
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// tslint:disable-next-line:restrict-plus-operands
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expect(blockNumberAfter).to.be.equal(blockNumberBefore + 1);
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});
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});
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describe('#increaseTimeAsync', () => {
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it('increases time when called', async () => {
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const TIME_DELTA = 1000;
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const blockTimestampBefore = await web3Wrapper.getBlockTimestampAsync(BlockParamLiteral.Latest);
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await web3Wrapper.increaseTimeAsync(TIME_DELTA);
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await web3Wrapper.mineBlockAsync();
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const blockTimestampAfter = await web3Wrapper.getBlockTimestampAsync(BlockParamLiteral.Latest);
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// tslint:disable-next-line:restrict-plus-operands
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expect(blockTimestampAfter).to.be.at.least(blockTimestampBefore + TIME_DELTA);
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});
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});
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describe('#takeSnapshotAsync/revertSnapshotAsync', () => {
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it('reverts changes in between', async () => {
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const blockNumberBefore = await web3Wrapper.getBlockNumberAsync();
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const snapshotId = await web3Wrapper.takeSnapshotAsync();
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await web3Wrapper.mineBlockAsync();
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await web3Wrapper.revertSnapshotAsync(snapshotId);
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const blockNumberAfter = await web3Wrapper.getBlockNumberAsync();
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expect(blockNumberAfter).to.be.equal(blockNumberBefore);
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});
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});
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});
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