Pytest Code Review

Quick Reference

Review Checklist

• Test functions are

  async def test_*

  for async code under test
• AsyncMock used for async dependencies, not Mock
• All async mocks and coroutines are awaited
• Fixtures in conftest.py for shared setup
• Fixture scope appropriate (function, class, module, session)
• Yield fixtures have proper cleanup in finally block
• @pytest.mark.parametrize for similar test cases
• No duplicated test logic across multiple test functions
• Mocks track calls properly (assert_called_once_with)
• patch() targets correct location (where used, not defined)
• No mocking of internals that should be tested
• Test isolation (no shared mutable state between tests)

When to Load References

• Reviewing async test functions → async-testing.md
• Reviewing fixtures or conftest.py → fixtures.md
• Reviewing similar test cases → parametrize.md
• Reviewing mocks and patches → mocking.md

Review Questions

1. Are all async functions tested with async def test_*?
2. Are fixtures properly scoped with appropriate cleanup?
3. Can similar test cases be parametrized to reduce duplication?
4. Are mocks tracking calls and used at the right locations?