In this talk from RubyFringe, Luke Francl wonders if Testing is overrated.
The question is certainly provocative nowadays, with TDD and other practices becoming ever more popular. However, Luke shows how testing can't catch all problems and how energy spent on achieving 100% test coverage would be better spent on other activities such as Code Reviews.
Watch Luke Francl's "Testing is Overrated".
InfoQ Homepage News Presentation: Testing is Overrated