jest.config.js

export default {
  preset: 'ts-jest/presets/default-esm',
  testEnvironment: 'node',
  extensionsToTreatAsEsm: ['.ts'],
  moduleNameMapper: {
    '^(\\.{1,2}/.*)\\.js$': '$1',
  },
  transform: {
    '^.+\\.ts$': [
      'ts-jest',
      {
        useESM: true,
        tsconfig: {
          target: 'ES2022',
          module: 'ESNext',
          moduleResolution: 'node',
          esModuleInterop: true,
          resolveJsonModule: true,
          rootDir: '.',
          strict: false,
        },
        diagnostics: false,
      },
    ],
  },
  testMatch: [
    '**/tests/**/*.test.ts',
  ],
  testPathIgnorePatterns: [
    '/node_modules/',
    '/dist/',
  ],
  collectCoverageFrom: [
    'src/**/*.ts',
    '!src/**/*.d.ts',
    '!src/index.ts',
  ],
  coverageDirectory: 'coverage',
  coverageReporters: ['text', 'lcov', 'html'],
  coverageThreshold: {
    global: {
      branches: 70,
      functions: 70,
      lines: 70,
      statements: 70,
    },
  },
  testTimeout: 30000,
  verbose: true,
  setupFilesAfterEnv: ['<rootDir>/tests/setup.ts'],
};