public void Single_Wraps_Up_Context_With_Type_Context()
{
Mock <IObjectAction> action = new Mock <IObjectAction>();
mUserGenerator.AddAction(action.Object);
SimpleUser user = mUserGenerator.Get();
action.Verify(x => x.Enact(It.Is <IGenerationContext>(
y => y.Node is TypeGenerationContextNode), user), Times.Once());
}