What is the role of testing in agile software development?

Well if you're one of those people who just isn't getting enough sleep worrying about this question, these links may finally allow you to rest.

First and foremost, watch this video of Scott Ambler. Good delivery. Interesting proposition. Great hat. Can't think of the last time I went to a presentation where a better hat was worn than Scott's hat.

If sleep is still evading you try The role of testing in agile projects. which is short pracitcal article.

And if that doesn't work go for User stories applied: for agile software development, which is a book by Mike Cohn. Unlike the links above its not just about testing on agile developments but it does contain information on this topic. "This book describes user stories and demonstrates how they can be used to properly plan, manage, and test software development projects."

Now if you're not already tettering on the edge of sleep then give up, admit you are insomniac and enjoy this instead.