jest.config.js

/** @type {import('ts-jest').JestConfigWithTsJest} */
export default {
  preset: 'ts-jest/presets/default-esm',
  testEnvironment: 'node',
  roots: ['<rootDir>/tests'],
  testMatch: ['**/*.test.ts'],
  moduleNameMapper: {
    '^(\\.{1,2}/.*)\\.js$': '$1',
  },
  transform: {
    '^.+\\.tsx?$': [
      'ts-jest',
      {
        useESM: true,
      },
    ],
  },
  extensionsToTreatAsEsm: ['.ts'],
  collectCoverageFrom: [
    'src/**/*.ts',
    '!src/**/*.d.ts',
    '!src/index.ts', // Entry point
  ],
  coverageDirectory: 'coverage',
  coverageReporters: ['text', 'text-summary', 'lcov', 'html'],
  coverageThreshold: {
    global: {
      // TelegramBot.ts has low coverage due to Telegram API dependencies
      // but utility classes and parser have good coverage
      branches: 20,
      functions: 45,
      lines: 35,
      statements: 35,
    },
  },
};