public void Update_NoChangesMade_NoCollectionChangedRaised()
{
var collectionChangedEventArgsList = new List <NotifyCollectionChangedEventArgs>();
var collection = new ExtendedObservableCollection <int>();
collection.CollectionChanged += (_, args) => collectionChangedEventArgsList.Add(args);
using (collection.Update())
{
}
Assert.Empty(collectionChangedEventArgsList);
}
public void Update_ItemsAdded_CollectionChangedRaised()
{
var collectionChangedEventArgsList = new List <NotifyCollectionChangedEventArgs>();
var collection = new ExtendedObservableCollection <int>();
collection.CollectionChanged += (_, args) => collectionChangedEventArgsList.Add(args);
using (collection.Update())
{
collection.Add(123);
collection.Add(456);
}
Assert.Equal(2, collection.Count);
Assert.Single(collectionChangedEventArgsList);
Assert.Equal(NotifyCollectionChangedAction.Reset, collectionChangedEventArgsList[0].Action);
}
