Yes, we have tests. Yes, you can choose not to use modules which have no tests. Unfortunately, there are modules (and I'm guilty of creating some) which have only a minimal "it compiles" test. There are others which are damnably hard, if not impossible, to write tests for, and so you can't really be sure that they have adequate tests even if they have lots of them. And then there are modules which have *thousands* of tests, and you know damned well that they aren't all needed and so get suspicious about the quality of the tests for yet another reason.