public void SendsEventWhenUpdated()
{
List <MockItem> list = new List <MockItem>
{
new MockItem {
Id = 0, Description = "A"
},
new MockItem {
Id = 1, Description = "B"
},
new MockItem {
Id = 3, Description = "D"
}
};
var collection = new ObservableGroupedOrderedCollection <MockItem>(i => i.Id, i => i.Description, i => i.Description.Length);
collection.ReplaceWith(list);
var scheduler = new TestScheduler();
var observer = scheduler.CreateObserver <ICollectionChange>();
collection.CollectionChange.Subscribe(observer);
var updated = new MockItem {
Id = 1, Description = "C"
};
collection.UpdateItem(updated.Id, updated);
ICollectionChange change = new UpdateRowCollectionChange <MockItem>(new SectionedIndex(0, 1), updated);
observer.Messages.AssertEqual(
OnNext(0, change)
);
}
private void update(UpdateRowCollectionChange <TModel> change)
{
tableView.ReloadRows(change.Index.ToIndexPaths(), UITableViewRowAnimation.Automatic);
}