# Testing Strategy

The FastAPI backend will be tested using a combination of unit and integration tests.

## Unit Tests

- Use `pytest` with `pytest-asyncio` for async endpoint handlers.
- Mock external dependencies such as the DuckDB connection and the openrouter.ai API.

## Integration Tests

- Use `pytest-flask` to spin up the FastAPI app in a test client.
- Test full request/response cycles for authentication, user CRUD, and AI generation endpoints.
- Use an in‑memory DuckDB instance for database tests.

## Test Coverage

- Aim for >80 % coverage on the `app/` package.
- Generate coverage reports with `pytest-cov`.