Tests are an extension of documentation, in my opinion. I go on Github and I read the readme then I go to the test folder and try to see some valid usage exampl

Tests are an extension of documentation, in my opinion. I go on Github and I read the readme then I go to the test folder and try to see some valid usage examples. This is what writing useful tests mean, from a client perspective I just want to understand what's valid and what's invalid. Also useful to make sure we fixed specific scenario bugs. I've seen a lot of people doing things wrong but we can summarise in two cases: - "We've got 100% coverage, it must mean we've got no bugs, right?" - We've got tests covering happy path, everything else is tested manually. It takes forever and it's not shared anywhere, but "trust me" I've tested this.