http://junit.sourceforge.net/
JUnit is a simple framework to write repeatable tests.

http://junit.sourceforge.net/doc/faq/faq.htm

http://www.junit.org/index.htm


http://junit.sourceforge.net/doc/cookbook/cookbook.htm

http://jtestcase.sourceforge.net/

http://members.pingnet.ch/gamma/junit.htm

http://sourceforge.net/projects/nunit/
Unit-testing framework for all .Net languages.

http://nunitasp.sourceforge.net/
NUnitAsp is a tool for automatically testing ASP.NET web pages.
 - an extension to NUnit, a tool for test-driven development in .NET

http://www.csunit.org/index.php
csUnit is a unit testing framework for the Microsoft .NET Framework.
 - supports test driven SDLC using .NET languages such as C#,
Visual Basic .NET, Visual J# and managed C++.

http://www.xprogramming.com/software.htm

http://www.junit.org/news/extension/web/index.htm#XmlTestSuite
Web tools