EmbeddingGemma 2: an open, lightweight multimodal embedding model
deepmind.google·6d ago
AI Engineering
Lobsters·Aug 28·5 min read
Change-Detector Tests Considered Harmful (2015)
TL;DR
Change-detector tests, which validate implementation rather than behavior, can undermine confidence in code reliability. Focusing on behavior-driven tests is essential for maintaining code clarity and safety during refactoring.
✦ Why It Matters
Prioritize behavior-driven tests over change-detector tests to enhance code reliability and facilitate safe refactoring.
Key Takeaways
- Avoid change-detector tests that validate implementation details.
- Focus on behavior-driven tests for better code clarity.
- Ensure tests reflect actual functionality, not just function calls.
- Use tests as documentation to aid future developers.
How It Works
Behavior-driven tests assess the outcomes of functions rather than their internal workings, ensuring that the code behaves as expected regardless of implementation changes.