public void ReparentActionTest()
{
SysWindows.Shapes.Rectangle hostRectangle = new SysWindows.Shapes.Rectangle();
// try parenting an action more than once; should throw
StubAction action = new StubAction();
StubTrigger trigger1 = new StubTrigger();
StubTrigger trigger2 = new StubTrigger();
trigger1.Attach(hostRectangle);
trigger2.Attach(hostRectangle);
trigger1.Actions.Add(action);
try
{
trigger2.Actions.Add(action);
Debug.Fail("Expected InvalidOperationException to be thrown after adding an action to a second trigger.");
}
catch (InvalidOperationException)
{
}
// now try the same, properly unhooking before reparenting
action = new StubAction();
trigger1 = new StubTrigger();
trigger2 = new StubTrigger();
trigger1.Actions.Add(action);
trigger1.Actions.Remove(action);
trigger2.Actions.Add(action);
Assert.AreEqual(((IAttachedObject)action).AssociatedObject, trigger2.HostObject, "action.AssociatedObject == trigger2.Host");
Assert.AreEqual(trigger2.Actions.Count, 1, "trigger2.Actions.Count == 1");
}
private StubTrigger SetupRemoveAction(DependencyObject target)
{
StubTrigger trigger = new StubTrigger();
RemoveElementAction action = new RemoveElementAction();
trigger.Actions.Add(action);
trigger.Attach(target);
return(trigger);
}
