public void EventFired_SourceObjectChangesToNull_ListensToSourceName()
{
EventTrigger eventTrigger = CreateEventTrigger();
Grid grid = CreateGrid();
Rectangle host = CreateNamedElement <Rectangle>("rect");
Button sourceButton = CreateNamedElement <Button>("sourcebutton");
Button sourceNameButton = CreateNamedElement <Button>("sourceNameButton");
AddChildElement(grid, host);
AddChildElement(grid, sourceButton);
AddChildElement(grid, sourceNameButton);
using (StubWindow window = new StubWindow(grid))
{
StubAction action = AttachTriggerToObject(eventTrigger, host);
eventTrigger.SourceObject = sourceButton;
eventTrigger.SourceName = "sourceNameButton";
eventTrigger.EventName = "Click";
eventTrigger.ClearValue(EventTriggerBase.SourceObjectProperty);
System.Windows.RoutedEventArgs args = CreateClickEvent();
sourceButton.RaiseEvent(args);
Assert.AreEqual(action.InvokeCount, 0, "Click on source object button should not invoke the action, as the SourceObject has been cleared.");
sourceNameButton.RaiseEvent(args);
Assert.AreEqual(action.InvokeCount, 1, "Click on source name button when SourceObject has been cleared should invoke the action.");
}
}