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 in your test environment
  dir: './',
})

// Add any custom config to be passed to Jest
const customJestConfig = {
  setupFilesAfterEnv: ['<rootDir>/jest.setup.js'],
  testEnvironment: 'jest-environment-jsdom',
  moduleNameMapper: {
    // Handle module aliases (this will be automatically configured for you soon)
    '^@/(.*)$': '<rootDir>/src/$1',
    // Mock audio files
    '\\.(mp3|wav|ogg)$': '<rootDir>/__mocks__/fileMock.js',
  },
  testMatch: [
    '**/__tests__/**/*.test.[jt]s?(x)',
    '**/?(*.)+(spec|test).[jt]s?(x)'
  ],
  collectCoverageFrom: [
    'src/hooks/**/*.{js,jsx,ts,tsx}',
    'src/helpers/**/*.{js,jsx,ts,tsx}',
    'src/i18n.ts',
    '!src/**/*.d.ts',
    '!src/**/*.stories.{js,jsx,ts,tsx}',
  ],
}

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