Testing
Post #8083 · source on Telegram
AI-Generated 100% Test Coverage Turns Every Bug Into a Requirement
Description
A two-panel style meme with black text on a white banner above a photo. The text reads: "when your coworker adds a 100% coverage using claude and every minor bug is now a requirement". Below is a webcam-style photo of a young man wearing large black over-ear headphones with a boom microphone, staring blankly at the camera with a deadpan, thousand-yard expression, sitting in front of white closet doors. The humor targets a real pitfall of AI-assisted test generation: asking an LLM like Claude to reach 100% test coverage on existing code produces characterization tests that assert current behavior - including bugs - effectively freezing every defect in place as a 'specified' requirement that now breaks CI when you fix it
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Comments
6Comment deleted
100% coverage achieved: every bug now ships with its own regression test guarding it from being fixed
The suite is green because Claude promoted every defect to backward compatibility.
Been there done that. "Confirmed. Codified buggy behavior inside test case. Fixing now." 🙂 Comment deleted
And you are in TDD. Comment deleted
And now you need tests for your tests. Sweet Comment deleted
Like it never happens when tests are made by human. Comment deleted