jest.config.ts

export default {
  roots: ['<rootDir>/src'],
  collectCoverageFrom: ['src/**/*.{js,jsx,ts,tsx}', '!src/**/*.d.ts'],
  setupFiles: ['react-app-polyfill/jsdom'],
  setupFilesAfterEnv: ['./jest.setup.ts'],
  testMatch: [
    '<rootDir>/src/**/__tests__/**/*.{js,jsx,ts,tsx}',
    '<rootDir>/src/**/*.{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)$',
  ],
  modulePaths: ['./src'],
  moduleNameMapper: {
    '^react-native$': 'react-native-web',
    '^.+\\.module\\.(css|sass|scss)$': 'identity-obj-proxy',
    '^uuid$': require.resolve('uuid'),
    d3: '<rootDir>/node_modules/d3/dist/d3.min.js',
  },
  moduleFileExtensions: [
    'web.js',
    'js',
    'web.ts',
    'ts',
    'web.tsx',
    'tsx',
    'json',
    'web.jsx',
    'jsx',
    'node',
    'module.scss',
    'module.css',
    'module.sass',
    'scss',
    'css',
    'sass',
  ],
  watchPlugins: ['jest-watch-typeahead/filename', 'jest-watch-typeahead/testname'],
  resetMocks: true,
};