StrellerMinds-Backend/jest.config.js at main · Biokes/StrellerMinds-Backend · GitHub

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module.exports = {
  displayName: 'StrellerMinds Backend',
  preset: 'ts-jest',
  testEnvironment: 'node',

  // Root directory
  rootDir: '.',

  // Test file patterns
  testMatch: [
    '<rootDir>/src/**/*.spec.ts',
    '<rootDir>/src/**/*.test.ts',
    '<rootDir>/test/**/*.spec.ts',
    '<rootDir>/test/**/*.test.ts',
    '<rootDir>/test/integration/**/*.spec.ts',
    '<rootDir>/test/integration/**/*.test.ts',

  ],

  // Ignore patterns
  testPathIgnorePatterns: ['<rootDir>/node_modules/', '<rootDir>/dist/', '<rootDir>/test/e2e/', '<rootDir>/cypress/'],

  // Module name mapping for path aliases
  moduleNameMapper: {
    '^@/(.*)$': '<rootDir>/src/$1',
    '^@test/(.*)$': '<rootDir>/test/$1',
    '^src/(.*)$': '<rootDir>/src/$1',
    '^uuid$': '<rootDir>/node_modules/uuid/dist/index.js',
    '^uuid/(.*)$': '<rootDir>/node_modules/uuid/dist/$1',
  },

  // Setup files
  setupFilesAfterEnv: ['<rootDir>/test/jest.setup.ts'],

  // Transform configuration
  transform: {
    '^.+\\.ts$': [
      'ts-jest',
      {
        tsconfig: 'tsconfig.spec.json',
        isolatedModules: false,
      },
    ],
    // Transform ESM .js files from node_modules that need CJS conversion
    '^.+\\.js$': [
      'ts-jest',
      {
        tsconfig: 'tsconfig.spec.json',
        isolatedModules: true,
      },
    ],
  },

  // Transform ignore patterns — un-ignore ESM-only packages in node_modules
  transformIgnorePatterns: [
    'node_modules/(?!(@nestjs/typeorm|typeorm|uuid|@nestjs/axios|axios|ioredis|@nestjs-modules/ioredis))',
  ],

  // Coverage configuration
  collectCoverage: false, // Enable with --coverage flag
  collectCoverageFrom: [
    'src/**/*.ts',
    '!src/**/*.spec.ts',
    '!src/**/*.test.ts',
    '!src/**/*.interface.ts',
    '!src/**/*.dto.ts',
    '!src/**/*.entity.ts',
    '!src/**/*.enum.ts',
    '!src/**/*.constant.ts',
    '!src/**/*.config.ts',
    '!src/main.ts',
    '!src/**/*.module.ts',
    '!src/migrations/**',
    '!src/seeds/**',
  ],

  coverageDirectory: '<rootDir>/coverage',
  coverageReporters: ['text', 'text-summary', 'html', 'lcov', 'json', 'json-summary', 'cobertura'],

  // Coverage thresholds
  coverageThreshold: {
    global: {
      branches: 80,
      functions: 80,
      lines: 80,
      statements: 80,
    },
  },

  // Test timeout
  testTimeout: 10000,

  // Force exit after all tests complete
  forceExit: true,

  // Detect open handles
  detectOpenHandles: true,

  // Parallel execution
  maxWorkers: '50%',

  // Cache configuration
  cache: true,
  cacheDirectory: '<rootDir>/.jest-cache',

  // Clear mocks between tests
  clearMocks: true,
  restoreMocks: true,
  resetMocks: false,

  // Verbose output
  verbose: false,

  // Error handling
  bail: false,

  // Module file extensions
  moduleFileExtensions: ['js', 'json', 'ts'],

  // Test environment options
  testEnvironmentOptions: {
    NODE_ENV: 'test',
  },

  // Reporters
  reporters: ['default'],

  // Watch mode configuration
  watchPathIgnorePatterns: ['<rootDir>/node_modules/', '<rootDir>/dist/', '<rootDir>/coverage/'],
};