A few links and reference books for you to follow:
http://www.agiledata.org/essays/tdd.html
http://www.advisor.com/doc/13571
http://www.microsoft.com/china/community/Column/59.mspx
http://www.itisedu.com/phrase/200604240917025.html
http://www.xprogramming.com/xpmag/BigVisibleCharts.htm
http://www.codeproject.com/csharp/UnitTestManual.asp
http://www.codeproject.com/csharp/autp1.asp
extreme programming:
http://www.extremeprogramming.org/rules.html
Nnuit:
http://confach.cnblogs.com/archive/2005/06/20/177817.html
Other:
http://caoxiangkun.yculblog.com/archive.113712.html
http://bokegu.com/forums/566/showpost.aspx
http://www.cnblogs.com/sadier/articles/28120.html
http://www.matrix.org.cn/thread.shtml?topicId=36279&forumId=42
http://www.cnblogs.com/chwkai/archive/2006/03/23/356326.html
http://www.cnblogs.com/azurebz/archive/2007/05/31/766256.html
http://tropic.iis.sinica.edu.tw/sdp/sfpro.htm
http://topic.youkuaiyun.com/t/20020907/22/1005343.html