60 lines
1.8 KiB
TypeScript
60 lines
1.8 KiB
TypeScript
/**
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* Copyright (c) Facebook, Inc. and its affiliates. All Rights Reserved.
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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 * as path from 'path';
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import {cleanup, extractSummary, writeFiles} from '../Utils';
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import runJest from '../runJest';
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const DIR = path.resolve(__dirname, '../execute-tests-once-in-mpr');
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beforeEach(() => cleanup(DIR));
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afterAll(() => cleanup(DIR));
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test('Tests are executed only once even in an MPR', () => {
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// Make a global config that ignores all sub-projects.
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const config = {
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jest: {
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projects: ['<rootDir>', '<rootDir>/foo/*/'],
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testPathIgnorePatterns: ['/foo/'],
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testRegex: /my-test-.*\.js/.source,
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},
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};
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// Make a child config with a special regexp to ensure we execute the tests.
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const childConfig = {
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jest: {
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testRegex: /my-test-.*\.js/.source,
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},
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};
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/* eslint-disable sort-keys */
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writeFiles(DIR, {
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'foo/folder/my-test-bar.js': "test('bar', () => console.log('Bar!'));",
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'foo/folder/package.json': JSON.stringify(childConfig, null, 2),
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'foo/directory/my-test-baz.js': "test('baz', () => console.log('Baz!'));",
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'foo/directory/package.json': JSON.stringify(childConfig, null, 2),
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'foo/whatever/my-test-qux.js': "test('qux', () => console.log('Qux!'));",
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'foo/whatever/package.json': JSON.stringify(childConfig, null, 2),
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'package.json': JSON.stringify(config, null, 2),
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});
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/* eslint-enable sort-keys */
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const {stderr, exitCode} = runJest(DIR, ['foo/folder/my-test-bar.js']);
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expect(exitCode).toBe(0);
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const {rest, summary} = extractSummary(stderr);
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// We have only one test passed, so total should equal to one, despite we have
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// three projects.
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expect(rest).toMatchSnapshot();
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expect(summary).toMatch(/1 total/);
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});
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