Possible Duplicates:
Ms Test or NUnit?
NUnit vs Visual Studio 2008’s Test Projects for Unit Testing?
what test data approach/framework is recommended for .net unit testing
Are there real differences between NUnit and Microsoft’s Unit Testing Framework (VS 2008)?
Any recommendations re whether to got MSTest or NUnit for a new project in VS2010 (C#), mainly focused at business logic layer unit tests?
Is there any major reason why I wouldn't just go with the VS2010 MSTest which is integrated there?