public void AddRangeRaisesCorrectCollectionChangedEvent() { var collection = new RangedObservableCollection <int>(); collection.CollectionChanged += (s, e) => { Assert.Equal(NotifyCollectionChangedAction.Add, e.Action); Assert.Null(e.OldItems); Assert.Equal(ItemsToAdd, e.NewItems); }; collection.AddRange(ItemsToAdd); Assert.Equal(ItemsToAdd, collection.ToArray()); }
public void RemoveRangeRaisesCorrectCollectionChangedEventForNonExistentRemoves() { var collection = new RangedObservableCollection <int>(); collection.AddRange(ItemsToAdd); collection.CollectionChanged += (s, e) => { Assert.Equal(NotifyCollectionChangedAction.Remove, e.Action); Assert.Equal(new[] { 1, 2, 3, 4, 5 }, e.OldItems); Assert.Null(e.NewItems); }; collection.RemoveRange(new[] { 1, 2, 3, 4, 5, 60, 70, 80, 90, 100 }); Assert.Equal(new[] { 6, 7, 8, 9, 0 }, collection.ToArray()); }