jest.config.ts

export default {
  // The root of your source code, typically /src
  // `<rootDir>` is a token Jest substitutes
  roots: ['<rootDir>/src'],
  testEnvironment: 'jsdom',
  // Jest transformations -- this adds support for TypeScript
  // using ts-jest
  transform: {
    '^.+\\.(j|t)sx?$': 'ts-jest',
  },

  moduleNameMapper: {
    '\\.(jpg|jpeg|png|gif|eot|otf|webp|svg|ttf|woff|woff2|mp4|webm|wav|mp3|m4a|aac|oga)$':
      '<rootDir>/src/__mocks__/fileMock.ts',
    'assets/(.*)$': '<rootDir>/src/assets/$1',
    'components/(.*)$': '<rootDir>/src/components/$1',
    'utils/test-utils': '<rootDir>/src/utils/test-utils.tsx', // Temporary Fix
    // 'utils/(.*)$': '<rootDir>/src/utils/$1',
  },

  // Module file extensions for importing
  moduleFileExtensions: ['ts', 'tsx', 'js', 'jsx', 'json', 'node'],
  testPathIgnorePatterns: ['/node_modules/', '/public/'],

  // Runs special logic, such as cleaning up components
  // when using React Testing Library and adds special
  // extended assertions to Jest
  setupFilesAfterEnv: ['@testing-library/jest-dom/extend-expect'], // setupFiles before the tests are ran

  // Test spec file resolution pattern
  // Matches parent folder `__tests__` and filename
  // should contain `test` or `spec`.
  testRegex: '(/__tests__/.*|(\\.|/)(test|spec))\\.(j|t)sx?$',
};