I got massive productivity gains from having an LLM fill out my test suite.
It is like autocomplete and macros... "Based on these two unit tests, fill out the suite considering b, c, and d. Add any critical corner case tests I have missed or suggest them if they don't fit well."
It is on the human to look at the generated test to ensure a) they are comprehensive and b) useful and c) communicate clearly
Can you extend that - what was the domain, how did you start? I would like to give this a try but am not quite sure I get it?