This article describes a dummy application and explains how to launch the application's form from the test automation program using reflection and the System.Windows.Forms.Application class. It then shows how to simulate user actions and check application state using methods in the System.Reflection namespace, and describes how to extend and modify the test system to meet your own needs.

These same techniques can be incorporated into unit testing harnesses and are relevant even if you're using an existing framework like NUnit.

Author: James McCaffrey
Published: MSDN Magazine, January 2005