参考：TDD测试驱动开发 http://www.testclass.net/tdd
TDD、BDD、ATDD、DDD 软件开发模式 https://blog.csdn.net/ejinxian/article/details/70212208
浅谈TDD、BDD与ATDD软件开发 (敏捷开发模式) https://blog.csdn.net/tianxuhong/article/details/44919315
https://www.csdn.net/article/2012-10-30/2811286-Test-Driven-Development-Actually-Works