export default {
  // Use Node's experimental ESM support
  testEnvironment: 'node',

  // Transform ES modules
  transform: {},

  // Module name mapper for ES modules
  moduleNameMapper: {
    '^(\\.{1,2}/.*)\\.js$': '$1',
  },

  // Test match patterns
  testMatch: [
    '**/test/**/*.test.js',
    '**/__tests__/**/*.js',
  ],

  // Coverage configuration
  collectCoverageFrom: [
    'src/**/*.js',
    '!src/**/*.test.js',
    '!**/node_modules/**',
  ],

  // Ignore patterns
  testPathIgnorePatterns: [
    '/node_modules/',
    '/dist/',
  ],

  // Verbose output
  verbose: true,
};