mirror of https://github.com/facebook/jest.git
52 lines
1.3 KiB
TypeScript
52 lines
1.3 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 {cleanup, writeFiles} from '../Utils';
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import runJest from '../runJest';
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const dir = path.resolve(tmpdir(), 'clear_FS_and_transform_cache');
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const testFileContent = `
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'use strict';
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const fs = require('fs');
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const path = require('path');
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const absoluteTestHelperFile = path.resolve(__dirname, './testHelper.js');
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test('value is 1', () => {
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const value = require('./testHelper');
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expect(value).toBe(1);
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});
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test('value is 1 after file is changed', () => {
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fs.writeFileSync(absoluteTestHelperFile, 'module.exports = 2;');
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const value = require('./testHelper');
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expect(value).toBe(1);
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});
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test('value is 2 after calling "jest.resetModules"', () => {
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jest.resetModules();
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const value = require('./testHelper');
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expect(value).toBe(2);
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});
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`;
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beforeEach(() => cleanup(dir));
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afterAll(() => cleanup(dir));
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test('clear FS and transform cache', () => {
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writeFiles(dir, {
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'package.json': JSON.stringify({jest: {testEnvironment: 'node'}}),
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'test.js': testFileContent,
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'testHelper.js': 'module.exports = 1;',
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});
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const {exitCode} = runJest(dir);
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expect(exitCode).toBe(0);
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});
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