Atlas › 26 Testing Like a Senior › Testability and Test Curation☰ Read as one page
Testability and Test Curation
8.1OverviewSystems thinkers influence quality before tests are written. They shape the architecture to be testable (so tests are easy to write and…8.2Testability as a Design PrincipleAnti-Pattern: The system is built first, then QA tries to test it. Testing is hard because services are tightly coupled, behavior is…8.3Killing Bad TestsAnti-Pattern: The test suite only grows. Nobody deletes tests because "what if we miss a bug?" The suite becomes slower, flakier, and…8.4Key Takeaways- Testability is a design requirement, not an afterthought — advocate for dependency injection, observability, and determinism during…