public void NoChangeNoEvent()
{
var change = Diff.CollectionChange(new[] { 1, 2, 3 }, new[] { 1, 2, 3 });
var notifier = new DummyNotifier();
var actual = notifier.SubscribeAll();
Notifier.Notify(notifier, change, null, notifier.PropertyChangedEventHandler, notifier.NotifyCollectionChangedEventHandler);
CollectionAssert.IsEmpty(actual);
}
public void Remove(int index)
{
var before = new[] { 1, 2, 3 };
var ints = new ObservableCollection <int>(before);
var expected = ints.SubscribeAll();
var notifier = new DummyNotifier();
var actual = notifier.SubscribeAll();
ints.RemoveAt(index);
var change = Diff.CollectionChange(before, ints);
Notifier.Notify(notifier, change, null, notifier.PropertyChangedEventHandler, notifier.NotifyCollectionChangedEventHandler);
CollectionAssert.AreEqual(expected, actual, EventArgsComparer.Default);
}
public void AddToEmpty()
{
var ints = new ObservableCollection <int>();
var expected = ints.SubscribeAll();
ints.Add(1);
var notifier = new DummyNotifier();
var actual = notifier.SubscribeAll();
var change = Diff.CollectionChange(new int[0], ints);
Notifier.Notify(notifier, change, null, notifier.PropertyChangedEventHandler, notifier.NotifyCollectionChangedEventHandler);
CollectionAssert.AreEqual(expected, actual, EventArgsComparer.Default);
}