jest.config.js

module.exports = {
  roots: [
    '<rootDir>/tests/',
  ],
  collectCoverageFrom: [
    'tests/**/*.{js,jsx,ts,tsx}',
    '!tests/**/*.d.ts',
  ],
  setupFiles: [
    'react-app-polyfill/jsdom',
  ],
  setupFilesAfterEnv: [
    '<rootDir>/tests/setupTests.js',
  ],
  testMatch: [
    '<rootDir>/tests/**/__tests__/**/*.{js,jsx,ts,tsx}',
    '<rootDir>/tests/**/*.{spec,test}.{js,jsx,ts,tsx}',
  ],
  testEnvironment: 'jsdom',
  transform: {
    '^.+\\.(js|jsx|mjs|cjs|ts|tsx)$': '<rootDir>/config/jest/babelTransform.js',
    '^.+\\.css$': '<rootDir>/config/jest/cssTransform.js',
    '^(?!.*\\.(js|jsx|mjs|cjs|ts|tsx|css|json)$)': '<rootDir>/config/jest/fileTransform.js',
  },
  transformIgnorePatterns: [
    '[/\\\\]node_modules[/\\\\].+\\.(js|jsx|mjs|cjs|ts|tsx)$',
    '^.+\\.module\\.(css|sass|scss)$',
  ],
  modulePaths: [],
  moduleNameMapper: {
    '^react-native$': 'react-native-web',
    '^.+\\.module\\.(css|sass|scss)$': 'identity-obj-proxy',
    '^axios$': require.resolve('axios'),
  },
  moduleFileExtensions: [
    'web.js',
    'js',
    'web.ts',
    'ts',
    'web.tsx',
    'tsx',
    'json',
    'web.jsx',
    'jsx',
    'node',
  ],
  watchPlugins: [
    'jest-watch-typeahead/filename',
    'jest-watch-typeahead/testname',
  ],
  resetMocks: true,
};