[gnunez]

I agree. Keeping the test around provides a safety net (a bug repellent of sorts) for the next person the comes along. The test also serves as a documented history of the bugs of the past. The problem is that test does not guarantee the injection of future bugs of a different type. I don't think any amount of testing will. That's not to say we shouldn't write test, we should just be aware of the limits of testing.