jest.config.js

module.exports = {
  collectCoverageFrom: [
    'src/**/*.{js,jsx,ts,tsx}',
    '!src/**/*.d.ts',
  ],
  setupFiles: [
    '<rootDir>/enzyme.config.js',
  ],
  setupFilesAfterEnv: [],
  testMatch: [
    '<rootDir>/src/**/__tests__/**/*.{js,jsx,ts,tsx}',
    '<rootDir>/src/**/*.{spec,test}.{js,jsx,ts,tsx}',
  ],
  testEnvironment: 'jest-environment-jsdom-fourteen',
  transform: {
    '^.+\\.(js|jsx|ts|tsx)$': '<rootDir>/node_modules/babel-jest',
  },
  transformIgnorePatterns: [
    '[/\\\\]node_modules[/\\\\].+\\.(js|jsx|ts|tsx)$',
  ],
  modulePaths: [],
  moduleNameMapper: {
    '^react-native$': 'react-native-web',
    '\\.(css|less|scss|sss|styl)$': '<rootDir>/node_modules/jest-css-modules',
  },
  moduleFileExtensions: [
    'web.js',
    'js',
    'web.ts',
    'ts',
    'web.tsx',
    'tsx',
    'json',
    'web.jsx',
    'jsx',
    'node',
  ],
  watchPlugins: [
    'jest-watch-typeahead/filename',
    'jest-watch-typeahead/testname',
  ],
};