jest.config.js

module.exports = {
  testEnvironment: 'node',
  collectCoverage: true,
  collectCoverageFrom: [
    '<rootDir>/src/**/*.ts',
    '!<rootDir>/src/types/**/*.ts',
  ],
  snapshotFormat: {
    escapeString: true,
  },
  transform: {
    '\\.[jt]sx?$': [
      'ts-jest',
      {
        tsconfig: 'tsconfig.json',
      },
    ],
  },
};