public void CanCreateFromIObservableVector()
{
RunOnUIThread.Execute(() =>
{
var data = new WinRTObservableVector(Enumerable.Range(0, 100).Select(i => string.Format("Item #{0}", i)));
var dataSource = new ItemsSourceView(data);
var recorder = new CollectionChangeRecorder(dataSource);
Verify.AreEqual(100, dataSource.Count);
Verify.AreEqual("Item #4", (string)dataSource.GetAt(4));
Verify.IsFalse(dataSource.HasKeyIndexMapping);
data.Insert(4, "Inserted Item");
data.RemoveAt(7);
data[15] = "Replaced Item";
data.Clear();
VerifyRecordedCollectionChanges(
expected: new NotifyCollectionChangedEventArgs[]
{
CollectionChangeEventArgsConverters.CreateNotifyArgs(NotifyCollectionChangedAction.Add, -1, 0, 4, 1),
CollectionChangeEventArgsConverters.CreateNotifyArgs(NotifyCollectionChangedAction.Remove, 7, 1, -1, 0),
CollectionChangeEventArgsConverters.CreateNotifyArgs(NotifyCollectionChangedAction.Replace, 15, 1, 15, 1),
CollectionChangeEventArgsConverters.CreateNotifyArgs(NotifyCollectionChangedAction.Reset, -1, 0, -1, 0),
},
actual: recorder.RecordedArgs);
});
}
public void CanCreateFromIBindableIterable()
{
RunOnUIThread.Execute(() =>
{
var dataSource = new ItemsSourceView(Enumerable.Range(0, 100));
Verify.AreEqual(100, dataSource.Count);
Verify.AreEqual(4, dataSource.GetAt(4));
});
}
public void VerifyReadOnlyListCompatibility()
{
RunOnUIThread.Execute(() =>
{
var collection = new ReadOnlyNotifyPropertyChangedCollection <object>();
var firstItem = "something1";
collection.Data = new ObservableCollection <object>();
collection.Data.Add(firstItem);
collection.Data.Add("something2");
collection.Data.Add("something3");
var itemsSourceView = new ItemsSourceView(collection);
Verify.AreEqual(3, itemsSourceView.Count);
collection.Data.Add("something4");
Verify.AreEqual(4, itemsSourceView.Count);
Verify.AreEqual(firstItem, itemsSourceView.GetAt(0));
Verify.AreEqual(0, itemsSourceView.IndexOf(firstItem));
});
}