

Unit and method tests are still useful to quickly find where the issue occured. If you just test the input and output of the program, no its individual units, then in an error case you still need to figure out where it exactly went wrong. So in short, its not just to check if program behaves correctly, unit tests also helps debugging.











I see two reasons this could be: a) either it is by design, so people click and read it, or b) he couldn’t figure out a good and short title that conveys the article. So in other words either clickbait or skill issue. :D (I’m just joking here!)