I've installed the resharper 7 plugin for xUnit (v0.6036816) and I'm having a weird behavior.
From the looks of it, only the dlls from the Debug build are being tested when run through Resharper (7 EAP) in Visual Studio 12 RC

I had all the tests passing in Debug, switched over to Release, changed one of my tests to throw an exception and ran the test. It Passed :S I then deleted the files in the \bin\Debug folder and it complained that it couldn't find them. It doesn't seem to care which configuration is currently selected.