Test View Not Displaying All Unit Tests in Visual Studio 2008

For a Visual Studio project to display tests in the Test View window it needs to be created as a "Test" project. If you want to see the tests and it was created as some other kind of project originally, you should be able to add the following in the element in you
.csproj file which is XML based:


<ProjectTypeGuids>{3AC096D0-A1C2-E12C-1390-A8335801FDAB};{FAE04EC0-301F-11D3-BF4B-00C04F79EFBC}</ProjectTypeGuids>


Now Visual Studio 2008 should display all your unit tests in the Test View window.

Thanks to this article for helping me out with this one.