I’ve found that copilot is actually pretty good at generating tests, although I’m sure that depends on how the code under test is written. I can usually just write the test description (sometimes a whole describe block) and it fills out the test(s) for me. I usually have to make some adjustments but it sure beats typing it all out by hand.

Testing is coding, the purpose of the module is just different.

Like this? https://www.microsoft.com/en-us/ai/ai-lab-sketch2code

Bing can do this. Although I tested it only for very simple hand drawn mockups. "As an AI assistant", it may refuse to do so from time to time