public void RemoveRangeUsesDispatcherToRemoveElements()
{
var itemsToRemove = new[] { new Element(), new Element() };
var existingItems = new[] { new Element() };
var collection = new BindableCollection<Element>(itemsToRemove.Concat(existingItems));
var dispatcher = new TestDispatcher();
Execute.Dispatcher = dispatcher;
collection.RemoveRange(itemsToRemove);
Assert.That(collection, Is.EquivalentTo(itemsToRemove.Concat(existingItems)));
Assert.NotNull(dispatcher.SendAction);
dispatcher.SendAction();
Assert.AreEqual(existingItems, collection);
}