members-only post 8 min read

The Illusion of 100% Test Coverage

I've watched teams chase 100% and still ship bugs. Coverage proves code ran, not that it worked. Real safety comes from assertions that bite, weird inputs, mutation tests, and tough reviews. Treat coverage as a flashlight, not a finish line.
The Illusion of 100% Test Coverage
Image generated by author via Sora
This post is for subscribers only

Subscribe to continue reading