jest.config.ts

import type { Config } from '@jest/types';

const config: Config.InitialOptions = {
  preset: 'ts-jest',
  testEnvironment: 'node',
  testPathIgnorePatterns: ['/node_modules/', '/build/'],
  extensionsToTreatAsEsm: ['.ts'],
  coverageThreshold: {
    global: {
      branches: 50,
      functions: 80,
      lines: 80,
      statements: 80
    }
  },
  collectCoverageFrom: [
    "src/lib/**/*.ts",
    "!src/lib/**/index.ts", 
    "!src/lib/**/*.d.ts",
    "!src/lib/**/*.test-d.ts",
    "!src/lib/setupJest.ts",
  ],
  setupFilesAfterEnv: ['./jest.setup.ts'],
  globals: {
    'ts-jest': {
      useESM: true,
      tsconfig: 'tsconfig.json',
      diagnostics: false
    }
  },
  moduleNameMapper: {
    '^(\\.{1,2}/.*)\\.js$': '$1',
  }
};

export default config;