unit tests, sure, integration tests are a lot more fiddly. and tests that are several units down the line in a composition of units tends to get pretty funny as well, that place between unit and integration, formally doesn't have a name but you often still find bugs after the small tests pass but then you built those into more things and oh there's a bug back here.

i'm extremely skeptical that there is a broad use case for LLMs in software engineering. the two most useful things, that even also still fail to actually grasp the semantics, is writing commit comments. even there i find it doesn't work more than 2 times out of three.

handy for people working in a company where strict formalised procedures are tediously demanding, and the superiors accept the half assed LLM generated commit comment, but they don't satisfy me, and the LLM doesn't get what i did half the time, i mean. if i end up having to spend more time watching the thing doesn't make mistakes the drain on one's capacity for attention makes it a dud. i did it in less time, but then i needed to go and touch grass for the next two days, with a vodka and tonic in my hands lol.