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'],
    testEnvironment: 'jest-environment-jsdom',
    moduleNameMapper: {
        '^@/(.*)$': '<rootDir>/src/$1',
    },
    testPathIgnorePatterns: [
        '<rootDir>/.next/',
        '<rootDir>/node_modules/',
        '<rootDir>/e2e/',
    ],
    transformIgnorePatterns: [
        'node_modules/(?!(marked|react-markdown|remark-gfm|rehype-raw|react-syntax-highlighter)/)',
    ],
    collectCoverageFrom: [
        'src/**/*.{js,jsx,ts,tsx}',
        '!src/**/*.d.ts',
        '!src/app/api/**',
        '!src/lib/prisma.ts',
    ],
    coverageThreshold: {
        global: {
            branches: 70,
            functions: 70,
            lines: 70,
            statements: 70,
        },
    },
};

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