jest.config.js

export default {
  preset: 'ts-jest',
  testEnvironment: 'jsdom',
  roots: ['<rootDir>/src'],
  testMatch: ['**/__tests__/**/*.ts?(x)', '**/?(*.)+(spec|test).ts?(x)'],
  moduleFileExtensions: ['ts', 'tsx', 'js', 'jsx', 'json', 'node'],
  setupFilesAfterEnv: ['<rootDir>/src/setupTests.ts'],
  collectCoverageFrom: [
    'src/**/*.{ts,tsx}',
    '!src/**/*.d.ts',
    '!src/index.tsx',
    '!src/firebase.config.ts',
    '!src/instrument.ts',
    '!src/i18n.ts',
  ],
  transform: {
    '^.+\\.tsx?$': ['ts-jest', {
      tsconfig: {
        jsx: 'react-jsx',
        esModuleInterop: true,
        allowSyntheticDefaultImports: true,
      }
    }]
  },
  moduleNameMapper: {
    '\\.(css|less|scss|sass)$': '<rootDir>/src/__mocks__/styleMock.js',
    '\\.(jpg|jpeg|png|gif|mp3)$': '<rootDir>/src/__mocks__/fileMock.js',
    '\\.svg\\?react$': '<rootDir>/src/__mocks__/svgMock.js',
    '\\.svg$': '<rootDir>/src/__mocks__/fileMock.js',
  },
};