/
prod-build.ts
47 lines (38 loc) · 1.73 KB
/
prod-build.ts
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import { statSync } from 'fs';
import { join } from 'path';
import { expectFileToExist, expectFileToMatch, readFile } from '../../utils/fs';
import { ng } from '../../utils/process';
function verifySize(bundle: string, baselineBytes: number) {
const size = statSync(`dist/test-project/${bundle}`).size;
const percentageBaseline = (baselineBytes * 10) / 100;
const maxSize = baselineBytes + percentageBaseline;
const minSize = baselineBytes - percentageBaseline;
if (size >= maxSize) {
throw new Error(
`Expected ${bundle} size to be less than ${maxSize / 1024}Kb but it was ${size / 1024}Kb.`,
);
}
if (size <= minSize) {
throw new Error(
`Expected ${bundle} size to be greater than ${minSize / 1024}Kb but it was ${size / 1024}Kb.`,
);
}
}
export default async function () {
// TODO(architect): Delete this test. It is now in devkit/build-angular.
// Can't use the `ng` helper because somewhere the environment gets
// stuck to the first build done
const bootstrapRegExp = /bootstrapModule\([a-zA-Z]+[0-9]*\)\./;
await ng('build');
await expectFileToExist(join(process.cwd(), 'dist'));
// Check for cache busting hash script src
await expectFileToMatch('dist/test-project/index.html', /main\.[0-9a-f]{16}\.js/);
await expectFileToMatch('dist/test-project/index.html', /styles\.[0-9a-f]{16}\.css/);
await expectFileToMatch('dist/test-project/3rdpartylicenses.txt', /MIT/);
const indexContent = await readFile('dist/test-project/index.html');
const mainES2017Path = indexContent.match(/src="(main\.[a-z0-9]{0,32}\.js)"/)[1];
// Content checks
await expectFileToMatch(`dist/test-project/${mainES2017Path}`, bootstrapRegExp);
// Size checks in bytes
verifySize(mainES2017Path, 141032);
}