jest.integration.config.js

const consoleReporterRules = require('./test/jest/console-reporter-rules-integration');

module.exports = {
  collectCoverageFrom: [
    '<rootDir>/shared/**/*.(js|ts|tsx)',
    '<rootDir>/ui/**/*.(js|ts|tsx)',
  ],
  coverageDirectory: './coverage/integration',
  coveragePathIgnorePatterns: ['.stories.*', '.snap', '.test.(js|ts|tsx)'],
  coverageReporters: ['html', 'json'],
  maxWorkers: '50%',
  moduleNameMapper: {},
  // The path to the Prettier executable used to format snapshots
  // Jest doesn't support Prettier 3 yet, so we use Prettier 2
  prettierPath: require.resolve('prettier-2'),
  reporters: [
    // Console baseline reporter MUST be first to capture raw console messages
    // before jest-clean-console-reporter processes them
    [
      '<rootDir>/test/jest/console-baseline-reporter.js',
      {
        testType: 'integration',
      },
    ],
    [
      'jest-clean-console-reporter',
      {
        rules: consoleReporterRules,
      },
    ],
    'summary',
    [
      'jest-junit',
      {
        outputDirectory: 'test/test-results/integration',
        outputName: 'junit.xml',
        addFileAttribute: 'true',
      },
    ],
  ],
  restoreMocks: true,
  setupFiles: [
    'jest-canvas-mock',
    '<rootDir>/test/integration/config/setup.js',
    '<rootDir>/test/integration/config/env.js',
  ],
  setupFilesAfterEnv: ['<rootDir>/test/integration/config/setupAfter.js'],
  testMatch: ['<rootDir>/test/integration/**/*.test.(js|ts|tsx)'],
  testPathIgnorePatterns: ['<rootDir>/test/integration/config/*'],
  testTimeout: 15000,
  // We have to specify the environment we are running in, which is jsdom. The
  // default is 'node'. This can be modified *per file* using a comment at the
  // head of the file. So it may be worthwhile to switch to 'node' in any
  // background tests.
  testEnvironment: 'jsdom',
  testEnvironmentOptions: {
    customExportConditions: ['node', 'node-addons'],
  },
  workerIdleMemoryLimit: '500MB',
  transform: {
    // Use babel-jest to transpile tests with the next/babel preset
    // https://jestjs.io/docs/configuration#transform-objectstring-pathtotransformer--pathtotransformer-object
    '^.+\\.(js|jsx|ts|tsx)$': 'babel-jest',
    // Use custom transform for pre-bundled CSS to avoid jest-preview's CSS inlining
    // which truncates large CSS files and loses design-token variables
    'test/integration/config/assets/index\\.css$':
      '<rootDir>/test/integration/config/transforms/css-link.js',
    '^(?!.*\\.(js|jsx|mjs|cjs|ts|tsx|css|json)$)':
      'jest-preview/transforms/file',
  },
  transformIgnorePatterns: ['/node_modules/'],
  // Ensure console output is buffered (not streamed) so reporters can access testResult.console
  // Without this, Jest uses verbose mode for single-file runs which bypasses buffering
  verbose: false,
};