jest.config.js

module.exports = {
  moduleFileExtensions: ['js', 'json'],
  rootDir: '__tests__',
  testRegex: ['.spec.js$', '.test.js$'],
  coverageDirectory: './coverage',
  testEnvironment: 'jsdom',
  moduleNameMapper: {
    '\\.(jpg|jpeg|png|gif|eot|otf|webp|svg|ttf|woff|woff2|mp4|webm|wav|mp3|m4a|aac|oga)$': '<rootDir>/__mocks__/fileMock.js',
    '\\.(css|less)$': 'identity-obj-proxy'
  }
};