Default Instance Tester

Controller_Default_Instance_Tester.cs

[TestFixture]
public class ControllerTester : TestBase
{
	private IEnumerable<Type> ControllerTypes
	{
	   get
	   {
	      var assembly = Assembly.GetAssembly(typeof(HomeController));
	      return assembly.GetTypes()
                             .Where(controller => controller.IsSubclassOf(typeof(Controller)) 
                                                  && !controller.IsAbstract);
	   }
	}

	[Test, TestCaseSource("ControllerTypes")]
	public void All_Controllers_should_have_a_default_instance(Type controllerType)
	{
		var instance = ObjectFactory.GetInstance(controllerType);
		instance.ShouldNotBeNull();
		instance.ShouldBeType(controllerType);
	}
}