Local Utilities MCP Server

--- description: Testing globs: src/__tests__/* alwaysApply: false --- # Testing Standards ## Test Organization - Place tests in `__tests__` directory - Name test files with `.test.ts` or `.spec.ts` suffix - Group related tests in describe blocks - Use clear, descriptive test names ## Test Structure - Follow AAA pattern: 1. Arrange - Set up test data 2. Act - Execute the code being tested 3. Assert - Verify the results ## Test Coverage - Aim for 80%+ code coverage - Test both success and error cases - Test edge cases and boundary conditions - Include integration tests for critical paths ## Best Practices - Keep tests independent - Avoid test interdependence - Clean up after each test - Use beforeEach/afterEach for setup/teardown - Mock external dependencies ## Assertions - Use explicit assertions - One assertion per test when possible - Use appropriate matchers - Include meaningful error messages ## Mocking - Mock external dependencies - Use jest.mock() for module mocking - Reset mocks between tests - Verify mock calls when relevant ## Test Data - Use factories for test data - Keep test data minimal - Use meaningful test data names - Avoid sharing mutable test data ## Performance - Keep tests fast - Avoid unnecessary async operations - Use setup/teardown hooks efficiently - Group similar tests together