Unit tests just make the mess a bit easier to solve, but are far from a perfect solution. Wanna move and rename a function? Do it, then spend hours fixing your

Unit tests just make the mess a bit easier to solve, but are far from a perfect solution. Wanna move and rename a function? Do it, then spend hours fixing your 10 broken tests, writing new ones, and test you app for hours because unit test dont cover integration. A static language + an IDE does it automatically within seconds.