crawlSymlinks.test.ts

/**
 * Copyright (c) Facebook, Inc. and its affiliates. All Rights Reserved.
 *
 * This source code is licensed under the MIT license found in the
 * LICENSE file in the root directory of this source tree.
 */

import {tmpdir} from 'os';
import * as path from 'path';
import * as fs from 'fs';
import {writeFiles, writeSymlinks} from '../Utils';
import runJest from '../runJest';
const DIR = path.resolve(tmpdir(), 'crawl-symlinks-test');

test('Node crawler picks up symlinked files', () => {
  if (fs.existsSync(DIR)) {
    fs.rmdirSync(DIR, {recursive: true});
  }

  writeFiles(DIR, {
    'package.json': `
            {
              "jest": {
                "testMatch": ["<rootDir>/test-files/test.js"]
              }
            }
          `,
    'symlinked-files/test.js': `
            test('1+1', () => {
              expect(1).toBe(1);
            });
          `,
  });

  writeSymlinks(DIR, {
    'symlinked-files/test.js': 'test-files/test.js',
  });

  const {stdout, stderr, exitCode} = runJest(DIR, ['--no-watchman']);
  expect(stderr).toContain('Test Suites: 1 passed, 1 total');
  expect(stdout).toEqual('');
  expect(exitCode).toEqual(0);
});