its in prod, noone touches it, because it works :/

I was once developing a small component for a pretty old and quite complex system. It was just a small addition, but the logic was a bit tricky so I thought writing some unit tests would be useful. To my surprise I discovered that the testing framework was already configured for this project, it was just disabled in CI and nobody ever mentioned it. I ran existing test suite. 200 out of 300 tests failed. The thing was running in production, entire company would go down without it.

How can something work when it hast over 200 Errors? That shit shouldnt even compile let alone do what its supposed to do

#pramga warning disable