I've always felt we somewhat failed as engineers (I included, of course) when I was doing boilerplate by hand. We should have taken the time to get those autogenerated. But... it takes time and the generator is always more complex than the produced code, sometimes even by a few factors, so it also takes an expert to maintain.

As for tests, I've seen LLMs produce good ones as well as useless ones. I guess it's all about instructions... sorry, prompts... no, sorry, prompt engineering to get it right and done properly.

That said, I am also very concerned with brain rot. Engineers nowadays can commit code they don't understand without a blink of the eye. Slowly, the knowledge may get sparse if we are not careful about it.