public void RegisterPopUp_PopUpToRegIsAncestorOfActive_DoesNotCallActivePopUp()
{
IUIElement rootUIE = Substitute.For <IUIElement>();
TestPopUpManager popUpManager = new TestPopUpManager();
popUpManager.SetRootUIElement(rootUIE);
IPopUp popUpToRegister = Substitute.For <IPopUp>();
IPopUp activePopUp = Substitute.For <IPopUp>();
popUpToRegister.IsAncestorOf(activePopUp).Returns(true);
popUpManager.SetActivePopUp_Test(activePopUp);
popUpManager.RegisterPopUp(popUpToRegister);
rootUIE.DidNotReceive().PopUpDisableRecursivelyDownTo(popUpToRegister);
activePopUp.DidNotReceive().PopUpDisableRecursivelyDownTo(popUpToRegister);
}