fastapi-testing-strategy

What problem does it solve?

This Skill helps developers reliably test FastAPI applications by separating unit logic tests from integration API-DB tests, ensuring clean database state between runs.

Core Features & Use Cases

• Mocked unit tests for business logic using in-memory or mocked repositories.
• Transaction-scoped integration tests that rollback after each test to preserve DB state.
• Guidance for async testing with pytest-asyncio and async database sessions.
• Use Case: test an API endpoint that creates a user and stores to DB without affecting real data.

Quick Start

Run the tests for a FastAPI project with unit tests using mocks and integration tests with transaction rollbacks to ensure DB isolation.