public void CollectionShouldBeUpdated(int index, int count)
{
Setup();
var items = new MvxObservableCollection <int[]>(new[] { new[] { 1, 2 }, new[] { 3 }, new[] { 4, 5, 6 } });
var flatItems = GetFlatItems(items.Take(index, count)).ToArray();
var flatCount = GetFlatItems(items).Count() - flatItems.Length;
var sut = new FlatObservableCollection <int>(items);
items.RemoveRange(index, count);
Assert.AreEqual(flatCount, sut.Count);
CollectionAssert.IsNotSubsetOf(flatItems, sut);
}
public void RemoveEventShouldBeRaised(int index, int count)
{
Setup();
var events = new List <NotifyCollectionChangedEventArgs>();
var items = new MvxObservableCollection <int[]>(new[] { new[] { 1, 2 }, new[] { 3 }, new[] { 4, 5, 6 } });
var flatIndex = GetFlatSectionIndex(items, index);
var flatItems = GetFlatItems(items.Take(index, count));
var sut = new FlatObservableCollection <int>(items);
sut.CollectionChanged += (_, args) => events.Add(args);
items.RemoveRange(index, count);
Assert.AreEqual(1, events.Count);
Assert.AreEqual(NotifyCollectionChangedAction.Remove, events[0].Action);
Assert.AreEqual(flatIndex, events[0].OldStartingIndex);
Assert.AreEqual(flatItems, events[0].OldItems);
}
