I just wrote a sibling comment and then realized you just stated exactly the same I wanted to say, but with more concrete examples :) That's exactly the sweet

I just wrote a sibling comment and then realized you just stated exactly the same I wanted to say, but with more concrete examples :) That's exactly the sweet spot: complex, self-contained logic units might benefit from low-level unit testing, but for the most part, what you're interested to know is if the whole thing works or not. Just IMHO, of course...