Tests may look like slop, but make them clear, not clever. Best practices are key: Test outcomes, not code. Name with intent. Keep tests independent. More straightforward tests beat fewer abstract ones.

I've been using AI to write tests and it works surprisingly well! Here's how.

If you derive tests from your implementation, you can't apply the Beyonce rule. What if the code is wrong and that wasn't the programmer's intent? We'll never know. The bug now exists in both places.

The cult of TDD leads you down a dark and stormy path towards brittle code with a false sense of security. But there is a better way. A sweet spot between unit and heavy integration.

Using plain Jest on a TypeScript codebase is kinda rough. No types in tests no thanks. Making Jest and TypeScript work together smoothly is something you do just rarely enough to forget the details. Hope this helps you and future me too ✌️