Complete guide for writing comprehensive tests for FastAPI backend applications using pytest, pytest-asyncio, and FastAPI TestClient. Emphasizes async testing, proper mocking, layered testing (repository → service → router), and achieving high test coverage.
| Understand test structure | testing-architecture.md | | Write unit tests | unit-testing.md | | Write integration tests | integration-testing.md | | Test async code | async-testing.md | | Use mocks and fixtures | mocking-fixtures.md | | Improve coverage | coverage-best-practices.md | | Test FastAPI routes | fastapi-testing.md |
Skill Status: Modular structure with progressive loading for optimal context management
Comprehensive pytest testing guide for FastAPI backends. Covers unit testing, integration testing, async patterns, mocking, fixtures, coverage, and FastAPI-specific testing with TestClient. Use when writing or updating test code for backend services, repositories, or API routes. Source: chacha95/advanced-harness.