mirror of https://github.com/facebook/jest.git
99 lines
3.2 KiB
TypeScript
99 lines
3.2 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 * 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, '../jest-config-ts');
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beforeEach(() => cleanup(DIR));
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afterAll(() => cleanup(DIR));
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test('works with jest.config.ts', () => {
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writeFiles(DIR, {
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'__tests__/a-giraffe.js': "test('giraffe', () => expect(1).toBe(1));",
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'jest.config.ts':
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"export default {testEnvironment: 'jest-environment-node', testRegex: '.*-giraffe.js'};",
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'package.json': '{}',
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});
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const {stderr, exitCode} = runJest(DIR, ['-w=1', '--ci=false']);
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const {rest, summary} = extractSummary(stderr);
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expect(exitCode).toBe(0);
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expect(rest).toMatchSnapshot();
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expect(summary).toMatchSnapshot();
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});
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test('works with tsconfig.json', () => {
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writeFiles(DIR, {
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'__tests__/a-giraffe.js': "test('giraffe', () => expect(1).toBe(1));",
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'jest.config.ts':
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"export default {testEnvironment: 'jest-environment-node', testRegex: '.*-giraffe.js'};",
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'package.json': '{}',
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'tsconfig.json': '{ "compilerOptions": { "module": "esnext" } }',
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});
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const {stderr, exitCode} = runJest(DIR, ['-w=1', '--ci=false']);
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const {rest, summary} = extractSummary(stderr);
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expect(exitCode).toBe(0);
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expect(rest).toMatchSnapshot();
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expect(summary).toMatchSnapshot();
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});
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test('traverses directory tree up until it finds jest.config', () => {
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writeFiles(DIR, {
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'__tests__/a-giraffe.js': `
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const slash = require('slash');
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test('giraffe', () => expect(1).toBe(1));
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test('abc', () => console.log(slash(process.cwd())));
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`,
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'jest.config.ts':
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"export default {testEnvironment: 'jest-environment-node', testRegex: '.*-giraffe.js'};",
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'package.json': '{}',
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'some/nested/directory/file.js': '// nothing special',
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});
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const {stderr, exitCode, stdout} = runJest(
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path.join(DIR, 'some', 'nested', 'directory'),
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['-w=1', '--ci=false'],
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{skipPkgJsonCheck: true},
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);
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// Snapshot the console.logged `process.cwd()` and make sure it stays the same
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expect(stdout.replace(/^\W+(.*)e2e/gm, '<<REPLACED>>')).toMatchSnapshot();
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const {rest, summary} = extractSummary(stderr);
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expect(exitCode).toBe(0);
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expect(rest).toMatchSnapshot();
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expect(summary).toMatchSnapshot();
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});
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test('it does type check the config', () => {
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writeFiles(DIR, {
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'__tests__/a-giraffe.js': "test('giraffe', () => expect(1).toBe(1));",
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'jest.config.ts': 'export default { testTimeout: "10000" }',
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'package.json': '{}',
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});
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const {stderr, exitCode} = runJest(DIR, ['-w=1', '--ci=false']);
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expect(stderr).toMatch('must be of type');
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expect(exitCode).toBe(1);
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});
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test('invalid JS in jest.config.ts', () => {
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writeFiles(DIR, {
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'__tests__/a-giraffe.js': "test('giraffe', () => expect(1).toBe(1));",
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'jest.config.ts': "export default i'll break this file yo",
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'package.json': '{}',
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});
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const {stderr, exitCode} = runJest(DIR, ['-w=1', '--ci=false']);
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expect(stderr).toMatch('TSError: ⨯ Unable to compile TypeScript:');
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expect(exitCode).toBe(1);
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});
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