jest.config.js

module.exports = {
  roots: ['<rootDir>/src'],
  preset: 'ts-jest',
  testEnvironment: 'jsdom',
  setupFilesAfterEnv: ['<rootDir>/src/setupTests.ts'],
  moduleDirectories: ['node_modules', 'src'],
  moduleFileExtensions: ['js', 'json', 'ts', 'tsx'],
  moduleNameMapper: {
    '\\.(css|less|scss|sass)$': 'identity-obj-proxy'
  },
  testMatch: [
    '<rootDir>/src/**/__tests__/**/*.{js,jsx,ts,tsx}',
    '<rootDir>/src/**/*.{spec,test}.{js,jsx,ts,tsx}',
  ],
  transform: {
    '^.+\\.(ts|tsx|js|jsx)$': '<rootDir>/node_modules/babel-jest',
    '^.+\\.css$': '<rootDir>/config/jest/cssTransform.js',
    '\\.(jpg|jpeg|png|gif|eot|otf|webp|svg|ttf|woff|woff2)$': '<rootDir>/config/jest/fileTransform.js'
  },
  setupFiles: [
    'dotenv/config'
  ],
  resetMocks: true,
}