I always look at these "Falsehoods Programmers Believe..." lists as a source of tests. Each item should spawn a number of unit or integration tests that will help to uproot any of these assumptions that were incorrectly baked into your software.
Each of these did indeed spawn tests. I used to work there and at the time there were over a thousand ranging from humdrum to David Blaine skydiving. They’re a crowd who really put a focus on good engineering