Python Testing — Advanced Patterns

This skill extends python-testing with async testing, advanced mocking, test organization, common patterns, and configuration.

When to Activate

• Testing async code (FastAPI, aiohttp, asyncio)
• Structuring large test suites
• Setting up pytest configuration for projects
• Testing database layers, API endpoints, or class methods in depth
• Mocking async functions and async context managers with AsyncMock
• Writing integration tests for FastAPI endpoints using httpx.AsyncClient
• Configuring pytest.ini or pyproject.toml with coverage thresholds and custom markers
• Organizing tests into unit, integration, and e2e directories with appropriate shared conftest fixtures

Testing Async Code

pytest-asyncio Setup