test-fidelity

name	test-fidelity
description	Ensure test cases match production behaviour with high fidelity mocks. Use when touching test code.

Test Fidelity

• Rule: if tests fail due to unrealistic mocks, first improve mocks/fixtures before relaxing production contracts
• Fix root cause, don't just suppress warnings or errors
• Default policy: prioritize true fixes over warning filters/ignores
• If suppression of warnings or errors is considered, explicitly ask first
• Ask before changing public behaviour for test convenience
• Include print statements in tests where those statements would be useful for debugging why a test failed
• Align mocks to match real object interfaces