James Coplien wrote in 2014 I think a paper titled "Why most unit testing is waste" which stirred up a storm among developers. I've seen many rebuttals, and the

James Coplien wrote in 2014 I think a paper titled "Why most unit testing is waste" which stirred up a storm among developers. I've seen many rebuttals, and they keep cropping up every year, but most seem to agree with his core premise: unit testing is valuable for testing algorithms -- stateless functions performing a computation -- and not much else.