jest.config.mjs

import nextJest from 'next/jest.js';

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: 'jsdom',
  testPathIgnorePatterns: [
    '<rootDir>/.next/',
    '<rootDir>/node_modules/',
    '<rootDir>/.history/',
    '<rootDir>/tests/',
    '.*\\.d\\.ts$',
  ],
  transformIgnorePatterns: [
    '/node_modules/(?!(yjs|y-protocols|y-websocket|y-monaco|lib0)/)',
  ],
  moduleNameMapper: {
    '^@/(.*)$': '<rootDir>/src/$1',
    '^monaco-editor$': '<rootDir>/src/__mocks__/monaco-editor.ts',
    '^monaco-editor/(.*)$': '<rootDir>/src/__mocks__/monaco-editor.ts',
  },
  collectCoverageFrom: [
    'src/**/*.{js,jsx,ts,tsx}',
    '!src/**/*.d.ts',
    '!src/**/*.stories.{js,jsx,ts,tsx}',
    // In-browser execution runs in Web Workers (eval / Pyodide WASM) that
    // jsdom cannot host; it's exercised via browser integration, not unit
    // tests, so excluded from coverage rather than mocked into meaninglessness.
    '!src/lib/execution/**',
  ],
  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
export default createJestConfig(customJestConfig);