gistfile1.cs

    public class controllers_should
    {
        [Fact]
        public void derive_from_from_our_base()
        {
            foreach (var controller in GetControllersThatDontNeedAuth())
            {
                var authenticatedControllerType = typeof(AuthenticatedController);
                Assert.True(controller.IsSubclassOf(authenticatedControllerType),string.Format("{0} should derive from {1}", controller.Name, authenticatedControllerType.Name));
                //controller.IsSubclassOf(authenticatedControllerType).ShouldBe(true); // the message from this line isn't very helpful
            }
        }
    }
        

The error message for the commented out line should be:

controller.IsSubclassOf(authenticatedControllerType) Should Be true, which should be ok?

Or use controller.ShouldBeAssignableTo(authenticatedControllerType) instead

Error message is:

    controller.IsSubclassOf(authenticatedControllerType)
        should be
    True
        but was
    False

Not as helpful as: TestController should derive from AuthenticatedController

Inline authenticatedControllerType?

The message then becomes this Rob:

    controller.IsSubclassOf(typeof(AuthenticatedController))
        should be
    True
        but was
    False

not the greatest