jest.config.mjs

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

import {fileURLToPath} from 'url';

const ignorePatterns = [
  '/node_modules/',
  '__fixtures__',
  '/testUtils.ts',
  '/packages/docusaurus/lib',
  '/packages/docusaurus-utils/lib',
  '/packages/docusaurus-utils-validation/lib',
  '/packages/docusaurus-plugin-content-blog/lib',
  '/packages/docusaurus-plugin-content-docs/lib',
  '/packages/docusaurus-plugin-content-pages/lib',
  '/packages/docusaurus-theme-classic/lib',
  '/packages/docusaurus-theme-classic/lib-next',
  '/packages/docusaurus-migrate/lib',
];

export default {
  rootDir: fileURLToPath(new URL('.', import.meta.url)),
  verbose: true,
  testURL: 'http://localhost/',
  testEnvironment: 'node',
  testPathIgnorePatterns: ignorePatterns,
  coveragePathIgnorePatterns: ignorePatterns,
  transform: {
    '^.+\\.[jt]sx?$': 'babel-jest',
  },
  moduleNameMapper: {
    // Jest can't resolve CSS or asset imports
    '^.+\\.(css|jpg|jpeg|png|svg)$': '<rootDir>/jest/emptyModule.js',

    // TODO we need to allow Jest to resolve core Webpack aliases automatically
    '@docusaurus/(browserContext|BrowserOnly|ComponentCreator|constants|docusaurusContext|ExecutionEnvironment|Head|Interpolate|isInternalUrl|Link|Noop|renderRoutes|router|Translate|use.*)':
      '@docusaurus/core/lib/client/exports/$1',
    // Maybe point to a fixture?
    '@generated/.*': '<rootDir>/jest/emptyModule.js',
    // TODO use "projects" + multiple configs if we work on another theme?
    '@theme/(.*)': '@docusaurus/theme-classic/src/theme/$1',
    '@site/(.*)': 'website/$1',

    // TODO why Jest can't figure node package entry points?
    '@docusaurus/plugin-content-docs/client':
      '@docusaurus/plugin-content-docs/lib/client/index.js',
  },
  globals: {
    window: {
      location: {href: 'https://docusaurus.io'},
    },
  },
  snapshotSerializers: ['<rootDir>/jest/snapshotPathNormalizer.js'],
};