Is it possible to use NUnit using prism 7.1

Question

I have developed a sample WPF application using Prism 7.1 and I want to use a unit testing framework (NUnit) for testing my sample WPF application.

I tried to do unit testing using a test project for a sample WPF application but I can't able to find the prism window to get all the controls for executing the test cases.

 

Please let me know if you have any solutions