jest.config.js

module.exports = {
  testEnvironment: 'jsdom',
  setupFilesAfterEnv: ['<rootDir>/src/setupTests.ts'],
  transform: {
    '^.+\\.(ts|tsx)$': ['babel-jest', {
      presets: [
        ['@babel/preset-env', { targets: { node: 'current' } }],
        ['@babel/preset-react', { runtime: 'automatic' }],
        '@babel/preset-typescript'
      ]
    }],
    '^.+\\.(js|jsx)$': ['babel-jest', {
      presets: [
        ['@babel/preset-env', { targets: { node: 'current' } }],
        ['@babel/preset-react', { runtime: 'automatic' }]
      ]
    }]
  },
  moduleNameMapper: {
    '^@components/(.*)$': '<rootDir>/src/components/$1',
    '^@mocks/(.*)$': '<rootDir>/__mocks__/$1'
  },
  moduleFileExtensions: ['ts', 'tsx', 'js', 'jsx', 'json', 'node'],
  testMatch: [
    '<rootDir>/**/__tests__/**/*.(ts|tsx|js)'
  ],
  collectCoverage: true,
  collectCoverageFrom: [
    'src/**/*.{ts,tsx}',
    '!src/**/*.d.ts',
    '!src/index.ts',
    '!src/examples/**',
    '!src/stories/**',
    '!src/storybook/**'
  ],
  coverageThreshold: {
    global: {
      branches: 75,
      functions: 80,
      lines: 80,
      statements: 80,
    },
  },
  transformIgnorePatterns: [
    'node_modules/(?!(.*\\.mjs$))'
  ]
};