115 lines
4.6 KiB
TypeScript
115 lines
4.6 KiB
TypeScript
import { join } from 'path';
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import * as chai from 'chai';
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import { CompilerOptions, ContractArtifact } from 'ethereum-types';
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import 'mocha';
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import { Compiler } from '../src/compiler';
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import { fsWrapper } from '../src/utils/fs_wrapper';
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import { exchange_binary } from './fixtures/exchange_bin';
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import { chaiSetup } from './util/chai_setup';
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import { constants } from './util/constants';
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chaiSetup.configure();
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const expect = chai.expect;
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describe('#Compiler', function(): void {
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this.timeout(constants.timeoutMs); // tslint:disable-line:no-invalid-this
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const artifactsDir = `${__dirname}/fixtures/artifacts`;
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const contractsDir = `${__dirname}/fixtures/contracts`;
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const compilerOpts: CompilerOptions = {
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artifactsDir,
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contractsDir,
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contracts: constants.contracts,
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};
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it('should create an Exchange artifact with the correct unlinked binary', async () => {
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compilerOpts.contracts = ['Exchange'];
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const exchangeArtifactPath = `${artifactsDir}/Exchange.json`;
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if (fsWrapper.doesPathExistSync(exchangeArtifactPath)) {
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await fsWrapper.removeFileAsync(exchangeArtifactPath);
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}
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await new Compiler(compilerOpts).compileAsync();
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const opts = {
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encoding: 'utf8',
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};
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const exchangeArtifactString = await fsWrapper.readFileAsync(exchangeArtifactPath, opts);
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const exchangeArtifact: ContractArtifact = JSON.parse(exchangeArtifactString);
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// The last 43 bytes of the binaries are metadata which may not be equivalent
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const metadataByteLength = 43;
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const metadataHexLength = metadataByteLength * 2;
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const unlinkedBinaryWithoutMetadata = exchangeArtifact.compilerOutput.evm.bytecode.object.slice(
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2,
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-metadataHexLength,
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);
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const exchangeBinaryWithoutMetadata = exchange_binary.slice(0, -metadataHexLength);
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expect(unlinkedBinaryWithoutMetadata).to.equal(exchangeBinaryWithoutMetadata);
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});
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it("should throw when Whatever.sol doesn't contain a Whatever contract", async () => {
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const contract = 'BadContractName';
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const exchangeArtifactPath = `${artifactsDir}/${contract}.json`;
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if (fsWrapper.doesPathExistSync(exchangeArtifactPath)) {
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await fsWrapper.removeFileAsync(exchangeArtifactPath);
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}
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compilerOpts.contracts = [contract];
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const compiler = new Compiler(compilerOpts);
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expect(compiler.compileAsync()).to.be.rejected();
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});
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describe('after a successful compilation', () => {
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const contract = 'Exchange';
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let artifactPath: string;
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let artifactCreatedAtMs: number;
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beforeEach(async () => {
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compilerOpts.contracts = [contract];
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artifactPath = `${artifactsDir}/${contract}.json`;
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if (fsWrapper.doesPathExistSync(artifactPath)) {
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await fsWrapper.removeFileAsync(artifactPath);
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}
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await new Compiler(compilerOpts).compileAsync();
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artifactCreatedAtMs = (await fsWrapper.statAsync(artifactPath)).mtimeMs;
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});
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it('recompilation should update artifact when source has changed', async () => {
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// append some meaningless data to the contract, so that its hash
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// will change, so that the compiler will decide to recompile it.
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await fsWrapper.appendFileAsync(join(contractsDir, `${contract}.sol`), ' ');
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await new Compiler(compilerOpts).compileAsync();
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const artifactModifiedAtMs = (await fsWrapper.statAsync(artifactPath)).mtimeMs;
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expect(artifactModifiedAtMs).to.be.greaterThan(artifactCreatedAtMs);
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});
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it("recompilation should NOT update artifact when source hasn't changed", async () => {
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await new Compiler(compilerOpts).compileAsync();
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const artifactModifiedAtMs = (await fsWrapper.statAsync(artifactPath)).mtimeMs;
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expect(artifactModifiedAtMs).to.equal(artifactCreatedAtMs);
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});
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});
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it('should only compile what was requested', async () => {
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// remove all artifacts
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for (const artifact of await fsWrapper.readdirAsync(artifactsDir)) {
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await fsWrapper.removeFileAsync(join(artifactsDir, artifact));
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}
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// compile EmptyContract
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compilerOpts.contracts = ['EmptyContract'];
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await new Compiler(compilerOpts).compileAsync();
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// make sure the artifacts dir only contains EmptyContract.json
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for (const artifact of await fsWrapper.readdirAsync(artifactsDir)) {
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expect(artifact).to.equal('EmptyContract.json');
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}
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});
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});
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