Testing in the Extreme Programming World

Much attention has been given to the topic of lightweight development processes-especially eXtreme Programming (XP). Robert Martin explains the concept and significance of a paradigm that believes acceptance tests should be defined by customers, and requires developers to write the unit tests before they write the code. He then separates the difficulties from the benefits inherent in this relatively new discipline. By cutting through the controversy, he's able to address the essential issues such as environmental possibilities and the need for XP. But most importantly, he addresses the question: What is the relevance of software testing and testing professionals within XP?