Which unit test framework in VS2010 - MSTest or NUnit? [duplicate]

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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 wi开发者_JS百科th the VS2010 MSTest which is integrated there?