jest.integration.config.ts

import type { Config } from 'jest';

const config: Config = {
  preset: 'ts-jest',
  testEnvironment: 'node',
  roots: ['<rootDir>/tests'],
  transformIgnorePatterns: [
    'node_modules/(?!(@faker-js/faker)/)',
  ],
  testMatch: ['**/tests/integration/**/*.test.ts'],
  transform: {
    '^.+\\.ts$': ['ts-jest', {
      tsconfig: 'tsconfig.test.json',
    }],
  },
  collectCoverageFrom: [
    'src/**/*.ts',
    '!src/**/*.d.ts',
    '!src/server.ts',
    '!src/types/**',
  ],
  coverageDirectory: 'coverage-integration',
  coverageReporters: ['text', 'lcov', 'html'],
  coverageThreshold: {
    global: {
      branches: 70,
      functions: 75,
      lines: 80,
      statements: 80,
    },
  },
  moduleNameMapper: {
    '^@/(.*)$': '<rootDir>/src/$1',
    '^@config/(.*)$': '<rootDir>/src/config/$1',
    '^@middleware/(.*)$': '<rootDir>/src/middleware/$1',
    '^@routes/(.*)$': '<rootDir>/src/routes/$1',
    '^@controllers/(.*)$': '<rootDir>/src/controllers/$1',
    '^@services/(.*)$': '<rootDir>/src/services/$1',
    '^@models/(.*)$': '<rootDir>/src/models/$1',
    '^@utils/(.*)$': '<rootDir>/src/utils/$1',
  },
  setupFilesAfterEnv: ['<rootDir>/tests/integration/setup.ts'],
  testTimeout: 30000,
  verbose: true,

  // Worker process configuration
  maxWorkers: 1, // Run tests serially to avoid connection pool issues
  forceExit: true, // Force exit after tests complete
  detectOpenHandles: true, // Help identify what's keeping the process alive
};

export default config;