public void SortedSet_ToObservableCollection_Remove_multiple()
{
var list = new SortedSetReactiveCollectionSource<int>();
var observableCollection = list.ReactiveCollection.ToObservableCollection();
using (Observable
.FromEventPattern<NotifyCollectionChangedEventHandler, NotifyCollectionChangedEventArgs>(eh => ((INotifyCollectionChanged)observableCollection).CollectionChanged += eh, eh => ((INotifyCollectionChanged)observableCollection).CollectionChanged -= eh)
.Subscribe())
{
list.AddRange(new[] { 1, 2, 3, 4, 5, 6, 7 });
list.Remove(3);
list.Remove(4);
list.Remove(5);
observableCollection.Should().Equal(1, 2, 6, 7);
}
}
