Three times while building a web content extractor, a passing check told me something that wasn't true. Not a flaky test, not a missed edge case — a green result that actively asserted the opposite of reality. All three failed the same way, and once I saw the pattern I couldn't unsee it.
Source: [Dev.to](https://dev.to/mariuska01/three-checks-that-lied-to-me-while-building-a-content-extraction-api-4n0p)