Express API Integration Testing

About

This skill equips Claude with professional-grade patterns for testing Express.js applications from the HTTP layer down to the database. It streamlines the creation of comprehensive test suites that cover route handling, middleware execution, JWT-based authentication, and complex query logic like pagination and filtering. By providing structured boilerplate for app factories and database cleanup, it helps developers build reliable API contracts and maintain high code quality across their Node.js backend services.

Key Features

• Prisma database lifecycle management and test data cleanup patterns
• 0 GitHub stars
• Supertest endpoint assertions for HTTP status codes and response bodies
• Input validation and XSS sanitization testing for request bodies
• JWT authentication testing helpers and authorization guard validation
• Query parameter verification for pagination, filtering, and sorting

Use Cases

• Testing RESTful API endpoints and response formats
• Validating complex middleware and authentication guard logic
• Ensuring database persistence for CRUD operations via API calls