Jim Coplien さんを迎えて、スクラム道場を行ってみます。 テーマは「Is TDD dead? Is Unit Testing waste? (TDDは死んだのか?ユニットテストはゴミか?)」です。 Since David Heinemeier Hanson, creator of Ruby on Rails, wrote an article "TDD is dead" on his blog, several arguments have emerged around that. What is the problem of TDD he mentioned? Let's discuss! With Jim Coplien, the author of the key article "Why Most Unit Testing is waste." the DHH's art