Developer finds six tests that passed without actually testing anything

A developer discovered six separate instances in one project where automated tests reported success without genuinely verifying the properties they were designed to check. Examples included a database restore script that confirmed an empty database's schema as valid, a health-check running at high volume instead of the low-volume condition it was meant to simulate, and a bucketing test whose assertion and input were the same hardcoded constant. Even after identifying the pattern and writing a rule to prevent it, the developer immediately wrote another hollow test, highlighting that awareness alone does not prevent the mistake. The author concludes that catching such tests requires a mechanical discipline: for every guard, explicitly identify what input would make it pass without the target property holding, and confirm that input appears as a failing negative case in the test suite.