To be fair, the original article does not contain the word "unit" - it just talks about tests, which is arguably more general. In my personal opinion, tests th

To be fair, the original article does not contain the word "unit" - it just talks about tests, which is arguably more general. In my personal opinion, tests that are "non-unit" tests are still useful - testing the validity and correct functioning of larger pieces of software is a good thing, even if it does not run fast, or if the broken code is not immediately obvious.