Can some one help with setting up a build step for running Unit tests in a TeamCity build configuration. I can currently run the unit test from VS Studio and they all run successfully. I need to add a new build step to an existing build configuration that runs these unit tests automatically. Currently I have no idea as to what needs to be picked as a runner type.. if I pick MSTest, what do I enter in so many fields that are available in Team City UI?

Filling the “Edit assemblies include list” text box should be enough. Put paths to your test assemblies, one per line. They are relative to your checkout directory.