jest.config.js

module.exports = {
    testEnvironment: 'node',
    transform: {
        '^.+\\.js$': ['babel-jest', { rootMode: 'upward' }]
    },
    moduleNameMapper: {
        '^(\\.{1,2}/.*)\\.js$': '$1'
    },
    moduleFileExtensions: ['js', 'json'],
    testPathIgnorePatterns: ['/node_modules/', '/build/'],
    testMatch: ['**/__tests__/**/*.test.js', '**/?(*.)+(spec|test).js'],
    collectCoverageFrom: [
        'src/**/*.js',
        '!src/**/*.config.js',
        '!src/server.js',
        '!src/**/index.js'
    ],
    coverageDirectory: 'coverage',
    verbose: true,
    testTimeout: 30000, // Increased for integration tests with DB operations
    // Note: Integration tests should be run with --runInBand flag to avoid database conflicts
    // Use: npm run test:integration
}