筆記：TDD三原則

所謂的測試導向開發的三原則

http://butunclebob.com/ArticleS.UncleBob.TheThreeRulesOfTdd

1. You are not allowed to write any production code unless it is to make a failing unit test pass.
2. You are not allowed to write any more of a unit test than is sufficient to fail; and compilation failures are failures.
3. You are not allowed to write any more production code than is sufficient to pass the one failing unit test.

翻譯成白話一點的中文就是

1. 沒有測試單元，不寫程式。
2. 不寫測試條件以外的測試程式。
3. 不寫不屬於任何測試單元的產品程式。