Thoughts on Developer Testing

This morning I read Joel: From Podcast 38 and it reminded me how immature developers are when it comes to testing. In the entry Joel says:a lot of people write to me, after reading The Joel Test, to say, "You should have a 13th thing on here: Unit Testing, 100% unit tests of all your code."At that point my interest is already piqued. Unit Testing 100% of your code is a terrible goal and I'm wonder

[lchin]

"Remember, we're all still figuring this out, so there's not really patterns that are right; just patterns that are right in a given context."