Selv med gode intentioner falder teams ind i testing anti-patterns — praksisser, der gør tests skrøbelige, langsomme, upålidelige eller lav-værdi. At genkende og undgå dem er vigtigt for at opretholde en sund, værdifuld test suite.
Test quality anti-patterns
✗ TESTING IMPLEMENTATION DETAILS → tests coupled to internals → break on every refactor
(brittle) → test BEHAVIOR/outcomes instead
✗ FLAKY tests → intermittent failures erode trust → people ignore failures (real ones too)
✗ OVER-MOCKING → mocking everything → tests verify mock interactions, not real behavior;
brittle and give false confidence
✗ Tests with NO meaningful assertions → run code but verify nothing (false coverage)
✗ GIANT tests checking many things → unclear what failed; hard to maintain
