It should be, but too often people write bad tests that test whst they wrote and not what it’s supposed to do. Writing good tests is a skill and most developer

It should be, but too often people write bad tests that test whst they wrote and not what it’s supposed to do. Writing good tests is a skill and most developers don’t seem to be as skilled in it as they think. The same concepts power much of Agile too though: XP & Scrum both complement this.