WP7 and unit testing

is there any unit test framework for WP7?

I have tried both MBUnit and Visual Studio UnitTestFramework, but they can't work. I cannot reference a wp7 project s开发者_JS百科ince it has a different version of system.dll

Stefano

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Check also: NUnit Windows Phone 7

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Yes, there's the WP7 version of the Silverlight Unit Test Framework, written by Jeff Wilcox.