public void Attach_MultipleObjects_ExceptionThrown()
{
BehaviorCollection behaviorCollection = new BehaviorCollection();
StubBehavior stub = new StubBehavior();
behaviorCollection.Attach(new Button());
Assert.ThrowsException <COMException>(() => behaviorCollection.Attach(new StackPanel()));
}
public void Attach_MultipleObjects_ExceptionThrown()
{
BehaviorCollection behaviorCollection = new BehaviorCollection();
StubBehavior stub = new StubBehavior();
behaviorCollection.Attach(new Button());
TestUtilities.AssertThrowsException(() => behaviorCollection.Attach(new StackPanel()));
}
public void Attach_NonNullThenNull_ExceptionThrown()
{
BehaviorCollection behaviorCollection = new BehaviorCollection();
behaviorCollection.Add(new StubBehavior());
behaviorCollection.Attach(new Button());
Assert.ThrowsException <COMException>(() => behaviorCollection.Attach(null));
}
public void Attach_NonNullThenNull_ExceptionThrown()
{
BehaviorCollection behaviorCollection = new BehaviorCollection();
behaviorCollection.Add(new StubBehavior());
behaviorCollection.Attach(new Button());
TestUtilities.AssertThrowsException(() => behaviorCollection.Attach(null));
}
public void Attach_MultipleTimeSameObject_AttachCalledOnce()
{
BehaviorCollection behaviorCollection = new BehaviorCollection()
{
new StubBehavior()
};
Button button = new Button();
behaviorCollection.Attach(button);
behaviorCollection.Attach(button);
// This method hard codes AttachCount == 1.
TestUtilities.AssertAttached((StubBehavior)behaviorCollection[0], button);
}
public void VectorChanged_RemoveWhileAttached_Detached()
{
BehaviorCollection behaviorCollection = new BehaviorCollection();
behaviorCollection.Attach(new ToggleSwitch());
StubBehavior behavior = new StubBehavior();
behaviorCollection.Add(behavior);
behaviorCollection.Remove(behavior);
TestUtilities.AssertDetached(behavior);
}
public void VectorChanged_AddWhileAttached_AllAttached()
{
BehaviorCollection behaviorCollection = new BehaviorCollection();
behaviorCollection.Attach(new Button());
behaviorCollection.Add(new StubBehavior());
behaviorCollection.Add(new StubBehavior());
behaviorCollection.Add(new StubBehavior());
foreach (StubBehavior stub in behaviorCollection)
{
TestUtilities.AssertAttached(stub, behaviorCollection.AssociatedObject);
}
}
public void Attach_Null_AttachNotCalledOnItems()
{
BehaviorCollection behaviorCollection = new BehaviorCollection();
behaviorCollection.Add(new StubBehavior());
behaviorCollection.Add(new StubBehavior());
behaviorCollection.Add(new StubBehavior());
behaviorCollection.Attach(null);
foreach (StubBehavior stub in behaviorCollection)
{
TestUtilities.AssertNotAttached(stub);
}
}
public void VectorChanged_ReplaceWhileAttached_OldDetachedNewAttached()
{
BehaviorCollection behaviorCollection = new BehaviorCollection();
behaviorCollection.Attach(new Button());
StubBehavior first = new StubBehavior();
behaviorCollection.Add(first);
StubBehavior second = new StubBehavior();
behaviorCollection[0] = second;
TestUtilities.AssertDetached(first);
TestUtilities.AssertAttached(second, behaviorCollection.AssociatedObject);
}
public void Detach_Attached_AllItemsDetached()
{
BehaviorCollection behaviorCollection = new BehaviorCollection();
behaviorCollection.Add(new StubBehavior());
behaviorCollection.Add(new StubBehavior());
behaviorCollection.Add(new StubBehavior());
behaviorCollection.Attach(new Button());
behaviorCollection.Detach();
Assert.IsNull(behaviorCollection.AssociatedObject, "The AssociatedObject should be null after Detach.");
foreach (StubBehavior behavior in behaviorCollection)
{
TestUtilities.AssertDetached(behavior);
}
}
public void Attach_MultipleBehaviors_AllAttached()
{
BehaviorCollection behaviorCollection = new BehaviorCollection();
behaviorCollection.Add(new StubBehavior());
behaviorCollection.Add(new StubBehavior());
behaviorCollection.Add(new StubBehavior());
Button button = new Button();
behaviorCollection.Attach(button);
Assert.AreEqual(button, behaviorCollection.AssociatedObject, "Attach should set the AssociatedObject to the given parameter.");
foreach (StubBehavior stub in behaviorCollection)
{
TestUtilities.AssertAttached(stub, button);
}
}
public void VectorChanged_ResetWhileAttached_AllDetached()
{
StubBehavior[] behaviorArray = { new StubBehavior(), new StubBehavior(), new StubBehavior() };
BehaviorCollection behaviorCollection = new BehaviorCollection();
behaviorCollection.Attach(new Button());
foreach (StubBehavior behavior in behaviorArray)
{
behaviorCollection.Add(behavior);
}
behaviorCollection.Clear();
foreach (StubBehavior behavior in behaviorArray)
{
TestUtilities.AssertDetached(behavior);
}
}
private static void OnBehaviorsChanged(DependencyObject obj, DependencyPropertyChangedEventArgs args)
{
BehaviorCollection behaviorCollection = (BehaviorCollection)args.OldValue;
BehaviorCollection behaviorCollection2 = (BehaviorCollection)args.NewValue;
if (behaviorCollection != behaviorCollection2)
{
if (behaviorCollection != null && ((IAttachedObject)behaviorCollection).AssociatedObject != null)
{
behaviorCollection.Detach();
}
if (behaviorCollection2 != null && obj != null)
{
if (((IAttachedObject)behaviorCollection2).AssociatedObject != null)
{
throw new InvalidOperationException("CannotHostBehaviorCollectionMultipleTimesExceptionMessage");
}
behaviorCollection2.Attach(obj);
}
}
}
