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Running Visual Studio Unit Tests in NUnit GUI

Originally posted on my old MSDN blog

As I've posted before, I really don't like the Visual Studio interface for running unit tests. This is mainly because it's not as clean (no hierarchy tree or big green line!), makes a copy of the files every time a test is run and is pretty slow (probably because of the file copies).

However I was very happy to find out the latest version of NUnit ( supports Visual Studio Unit tests, so you can just point the Nunit GUI at VS Unit Test DLLs and run the tests there.

Both interfaces have their pros and cons, and I tend to go back and forth between VS (especially when debugging through the tests) and NUnit (when I want to run tests quickly) but it's definitely a big productivity gain being able to choose the most productive UI.

N.B. This blog post has now moved to