jest.config.js

module.exports = {
  preset: 'ts-jest',
  testEnvironment: 'jsdom',
  setupFilesAfterEnv: ['<rootDir>/jest.setup.js'],
  moduleNameMapper: {
    '\\.(jpg|jpeg|png|gif|eot|otf|webp|svg|ttf|woff|woff2|mp4|webm|wav|mp3|m4a|aac|oga)$': '<rootDir>/__mocks__/fileMock.js',
    '\\.(css|less|scss|sass)$': '<rootDir>/__mocks__/styleMock.js'
  },
  transform: {
    '^.+\\.(ts|tsx)$': ['ts-jest', {
      tsconfig: 'tsconfig.json',
      isolatedModules: true
    }],
    '^.+\\.(js|jsx)$': 'babel-jest'
  },
  transformIgnorePatterns: [
    '/node_modules/(?!(@jmkcoder)/)'
  ],
  coverageDirectory: 'coverage',
  collectCoverageFrom: [
    'src/**/*.{js,jsx,ts,tsx}',
    '!src/**/*.d.ts',
    '!src/**/*.stories.{js,jsx,ts,tsx}'
  ],
  testMatch: ['**/__tests__/**/*.spec.(js|jsx|ts|tsx)'],
  testPathIgnorePatterns: ['/node_modules/', '/lib/']
};