jest.config.js

const nextJest = require('next/jest');

const createJestConfig = nextJest({
  // Provide the path to your Next.js app to load next.config.js and .env files
  dir: './',
});

// Add any custom config to be passed to Jest
const customJestConfig = {
  setupFilesAfterEnv: ['<rootDir>/jest.setup.js'],
  moduleNameMapper: {
    // Handle module aliases (this will be automatically configured for you based on your tsconfig.json paths)
    '^@/(.*)$': '<rootDir>/$1',
  },
  testEnvironment: 'jest-environment-jsdom',
  collectCoverageFrom: [
    'app/**/*.{js,jsx,ts,tsx}',
    'components/**/*.{js,jsx,ts,tsx}',
    'lib/**/*.{js,jsx,ts,tsx}',
    '!**/*.d.ts',
    '!**/node_modules/**',
    '!**/.next/**',
    '!**/coverage/**',
  ],
  testMatch: [
    '**/__tests__/**/*.(js|jsx|ts|tsx)',
    '**/*.(test|spec).(js|jsx|ts|tsx)',
  ],
  moduleFileExtensions: ['ts', 'tsx', 'js', 'jsx'],
  transform: {
    '^.+\\.(js|jsx|ts|tsx)$': ['babel-jest', { presets: ['next/babel'] }],
  },
  transformIgnorePatterns: [
    '/node_modules/(?!(framer-motion)/)',
    '^.+\\.module\\.(css|sass|scss)$',
  ],
};

// createJestConfig is exported this way to ensure that next/jest can load the Next.js config which is async
module.exports = createJestConfig(customJestConfig);