jest.config.js

process.env.TZ = 'UTC';

module.exports = {
  preset: 'react-native',
  resolver: '<rootDir>/jest.resolver.js',
  testEnvironment: '<rootDir>/jest-environment-react-native.js',
  moduleFileExtensions: ['ts', 'tsx', 'js', 'mjs', 'jsx', 'json', 'node'],
  // The zingolib submodule holds the Binding Layer's target and build
  // directories, and no JavaScript, so the haste map skips it as Metro does.
  modulePathIgnorePatterns: ['<rootDir>/.claude/', '<rootDir>/zingolib/'],
  // visual/ holds Playwright specs, run by `yarn visual:capture`.
  testPathIgnorePatterns: [
    '/node_modules/',
    '<rootDir>/visual/',
    '<rootDir>/zingolib/',
  ],
  // @noble/hashes, @react-navigation and zingolib-bundle-pin ship ESM only,
  // so babel transforms them like React Native's own packages.
  transformIgnorePatterns: [
    'node_modules/(?!((jest-)?react-native|@react-native(-community)?|@react-navigation|@noble/hashes|zingolib-bundle-pin)/)',
  ],
  transform: {
    '\\.(mjs|[jt]sx?)$': 'babel-jest',
    '^.+\\.(bmp|gif|jpg|jpeg|mp4|png|psd|webp)$':
      '<rootDir>/node_modules/react-native/jest/assetFileTransformer.js',
  },
  moduleNameMapper: {
    '\\.svg$': '<rootDir>/__mocks__/svgMock.js',
    // See __mocks__/appTheme.ts
    '^(\\.{1,2}/)+(app/)?theme$': '<rootDir>/__mocks__/appTheme.ts',
    '^@app/theme$': '<rootDir>/__mocks__/appTheme.ts',
    '^@app/(.*)$': '<rootDir>/app/$1',
    '^@screens/(.*)$': '<rootDir>/screens/$1',
    '^@ui/(.*)$': '<rootDir>/ui/$1',
  },
  setupFiles: ['./node_modules/react-native-gesture-handler/jestSetup.js'],
  setupFilesAfterEnv: ['<rootDir>/jest.setup.ts'],
  coverageReporters: ['lcov', 'text'],
  collectCoverageFrom: [
    'app/**/*.{ts,tsx}',
    'screens/**/*.{ts,tsx}',
    'ui/**/*.{ts,tsx}',
    '!**/__tests__/**',
    '!**/node_modules/**',
  ],
};