Pytest Generate

Test Generation Protocol

Framework: pytest 8+, pytest-asyncio, pytest-cov, httpx (for FastAPI), factory-boy

For each function/endpoint under test, generate:

1. Happy-path test (valid input → expected output)
2. Edge case tests (boundary values, empty inputs, max limits)
3. Error path tests (invalid input → correct HTTP code / exception)
4. Auth tests (unauthenticated → 401, unauthorized → 403)
5. Integration test if DB or external service is involved

Test Structure

class TestResourceCreate:
    async def test_creates_resource_with_valid_payload(self, client, auth_headers, db):
        ...
    async def test_returns_422_on_missing_required_field(self, client, auth_headers):
        ...
    async def test_returns_401_without_auth(self, client):
        ...
    async def test_returns_403_for_insufficient_role(self, client, limited_auth_headers):
        ...

Fixture rules:

• Database fixtures: use transactions + rollback (never commit to test DB)
• External APIs: always mock with respx or pytest-mock
• Auth: provide auth_headers fixture at conftest level

Output Expectations

• Minimum coverage target: 85% for new code, 100% for security-critical paths
• All async endpoints tested with pytest-asyncio and anyio
• Factory classes for all models in tests/factories/

Quality Criteria

• Tests run in isolation (no shared state between test functions)
• No time.sleep() — use freezegun for time-dependent logic
• Test names are self-documenting (no comments needed to understand intent)

Source: azar-management-consulting/occp-core — distributed by TomeVault.