Me? I use AI to write tests just as I use it to write everything else. I pay a lot of attention to what's being done including code quality but I am no more insecure about trusting those thousands of tested lines than I am about trusting the byte code generated from the 'strings of code'.
We have just moved up another level of abstraction, as we have done many times before. It will take time to perfect but it's already amazing.
So they don't know if it has the right behavior to begin with, or even if the tests are testing the right behavior.
This is what people are talking about. This is why nobody responsible wants to uberscale a serious app this way. It's ridiculous to see so much hype in this thread, people claiming they've built entire businesses without looking at any code. Keep your business away from me, then.