mirror of https://github.com/facebook/jest.git
58 lines
1.4 KiB
TypeScript
58 lines
1.4 KiB
TypeScript
/**
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* Copyright (c) Meta Platforms, Inc. and affiliates.
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*
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* This source code is licensed under the MIT license found in the
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* LICENSE file in the root directory of this source tree.
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*/
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import {tmpdir} from 'os';
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import * as path from 'path';
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import {realpathSync} from 'graceful-fs';
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import HasteMap from 'jest-haste-map';
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import {cleanup, writeFiles} from '../Utils';
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const DIR = path.resolve(realpathSync.native(tmpdir()), 'haste_map_size');
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beforeEach(() => {
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cleanup(DIR);
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writeFiles(DIR, {
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'file.js': '"abc"',
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});
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});
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afterEach(() => cleanup(DIR));
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const options = {
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extensions: ['js'],
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forceNodeFilesystemAPI: true,
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id: 'tmp',
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ignorePattern: / ^/,
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maxWorkers: 2,
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mocksPattern: '',
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platforms: [],
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retainAllFiles: true,
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rootDir: DIR,
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roots: [DIR],
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useWatchman: false,
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watch: false,
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};
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test('reports the correct file size', async () => {
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const hasteMap = await HasteMap.create(options);
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const hasteFS = (await hasteMap.build()).hasteFS;
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expect(hasteFS.getSize(path.join(DIR, 'file.js'))).toBe(5);
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});
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test('updates the file size when a file changes', async () => {
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const hasteMap = await HasteMap.create({...options, watch: true});
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await hasteMap.build();
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writeFiles(DIR, {
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'file.js': '"asdf"',
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});
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const {hasteFS} = await new Promise(resolve =>
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hasteMap.once('change', resolve),
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);
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hasteMap.end();
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expect(hasteFS.getSize(path.join(DIR, 'file.js'))).toBe(6);
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});
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