jest.config.js

module.exports = {
  preset: 'ts-jest',
  testEnvironment: 'node',
  roots: ['<rootDir>/src/', '<rootDir>/tests/'],
  testMatch: ['**/*.test.ts'],
  transform: {
    '^.+\\.tsx?$': 'ts-jest',
  },
  collectCoverage: true,
  coverageDirectory: 'coverage',
  collectCoverageFrom: [
    'src/**/*.ts',
    '!src/**/*.d.ts',
    '!src/**/index.ts',
  ],
  coverageThreshold: {
    global: {
      branches: 70,
      functions: 70,
      lines: 70,
      statements: 70,
    },
  },
  moduleFileExtensions: ['ts', 'tsx', 'js', 'jsx', 'json', 'node'],
};