Code Tests in .Net

[Albatross]

Simple question: Is there a way to run unit tests tests in VS.Net 2003 (or 2005)?  Is there a native way of running them, or do I have to shell out for a third-party testing suite?

 Thanks in advance.

[djork]

NUnit. http://www.nunit.org/

[kuroshin]

xUnit frameworks - www.nunit.org , www.csunit.org

Visual Studio Plugin ( I would say this is a must for professionals ) - http://testdriven.net/

Coverage analysis - NCover + NCoverExplorer ( you dont have to worry about these if you got the above plugin )

[JCM]

There's also FIT

http://fit.c2.com/