Which testing frameworks are supported by this skill?

The skill provides patterns for Vitest, Supertest, Pytest, Httpx, SQLAlchemy, and React Testing Library.

Can I use this for both Python and TypeScript projects?

Yes, it contains specialized integration patterns for both the FastAPI/Python and React/TypeScript ecosystems.

How does it handle external API dependencies?

It implements industry-standard mocking patterns using MSW (Mock Service Worker) for frontend components and VCR.py for backend services.

Does this skill handle database state cleanup?

Yes, it includes specific patterns for using in-memory SQLite and transaction rollbacks to ensure each test runs in a fresh environment.

Integration Testing Patterns

Name: Integration Testing Patterns
Author: yonatangross

byyonatangross

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Security & Testing

Implements robust integration testing patterns for APIs, databases, and complex component interactions across modern tech stacks.

About

The Integration Testing skill equips Claude with specialized patterns for validating how different parts of an application work together. It provides ready-to-use templates for testing REST API endpoints with Supertest and FastAPI, managing isolated test databases using SQLAlchemy, and verifying React component interactions with Testing Library. By focusing on cross-layer communication and state management, this skill helps developers move beyond unit tests to ensure production-grade reliability while maintaining high execution speed through in-memory setups and automated cleanup routines.

Key Features

Predefined coverage targets for APIs and service layers
API integration testing for FastAPI (Python) and Supertest (TypeScript)
29 GitHub stars
Isolated database testing with SQLAlchemy and in-memory SQLite setups
Network mocking patterns using MSW and VCR.py for external dependencies
React component interaction testing using RTL and TanStack Query

Use Cases

Setting up high-performance, isolated test environments with automated rollbacks
Validating API contract compliance and backend-to-database state transitions
Testing complex multi-step user workflows in React applications

About

Key Features

Predefined coverage targets for APIs and service layers
API integration testing for FastAPI (Python) and Supertest (TypeScript)
29 GitHub stars
Isolated database testing with SQLAlchemy and in-memory SQLite setups
Network mocking patterns using MSW and VCR.py for external dependencies
React component interaction testing using RTL and TanStack Query

Use Cases

Setting up high-performance, isolated test environments with automated rollbacks
Validating API contract compliance and backend-to-database state transitions
Testing complex multi-step user workflows in React applications