public void ConstructorTest()
{
var originalList = new ObservableCollection <string>(new[] { "D", "A", "c", "b" });
Predicate <string> filter = x => x != "c";
Func <IEnumerable <string>, IOrderedEnumerable <string> > sort = x => x.OrderBy(y => y);
var listView = new ObservableListViewCore <string>(originalList, StringComparer.OrdinalIgnoreCase);
listView.Filter = filter;
listView.Sort = sort;
AssertHelper.SequenceEqual(new[] { "A", "b", "D" }, listView);
listView.Dispose();
listView = new ObservableListViewCore <string>(originalList, StringComparer.OrdinalIgnoreCase, filter, sort);
AssertHelper.SequenceEqual(new[] { "A", "b", "D" }, listView);
Assert.AreSame(filter, listView.Filter);
Assert.AreSame(sort, listView.Sort);
listView.Dispose();
listView = new ObservableListViewCore <string>(originalList, StringComparer.OrdinalIgnoreCase, filter, sort, true);
AssertHelper.SequenceEqual(new[] { "A", "b", "D" }, listView);
Assert.AreSame(filter, listView.Filter);
Assert.AreSame(sort, listView.Sort);
bool collectionChangedCalled = false;
listView.CollectionChanged += (sender, e) =>
{
collectionChangedCalled = true;
};
originalList.Add("e");
Assert.IsFalse(collectionChangedCalled);
listView.Dispose();
AssertHelper.ExpectedException <ArgumentNullException>(() => new ObservableListViewCore <string>(null !));
}
public void Initialize()
{
originalList = new ObservableCollection <string>();
observableListView = new ObservableListViewCore <string>(originalList);
eventArgsList = new List <NotifyCollectionChangedEventArgs>();
void CollectionHandler(object sender, NotifyCollectionChangedEventArgs e)
{
eventArgsList.Add(e);
}
observableListView.CollectionChanged += CollectionHandler;
void PropertyHandler(object sender, PropertyChangedEventArgs e)
{
if (e.PropertyName == nameof(observableListView.Count))
{
countChangedCount++;
}
else if (e.PropertyName == "Item[]")
{
indexerChangedCount++;
}
}
observableListView.PropertyChanged += PropertyHandler;
}
public void Initialize()
{
originalList = new ObservableCollection <string>();
observableListView = new ObservableListViewCore <string>(originalList);
eventArgsList = new List <NotifyCollectionChangedEventArgs>();
NotifyCollectionChangedEventHandler collectionHandler = (sender, e) =>
{
eventArgsList.Add(e);
};
observableListView.CollectionChanged += collectionHandler;
PropertyChangedEventHandler propertyHandler = (sender, e) =>
{
if (e.PropertyName == nameof(observableListView.Count))
{
countChangedCount++;
}
else if (e.PropertyName == "Item[]")
{
indexerChangedCount++;
}
};
observableListView.PropertyChanged += propertyHandler;
}
public void RaiseEventsWithoutListener()
{
var originalList2 = new ObservableCollection <string>();
var observableListView2 = new ObservableListViewCore <string>(originalList);
originalList2.Add("first");
originalList2.Add("second");
originalList2.Move(0, 1);
originalList2.Remove("first");
originalList2.Add("third");
originalList2.Clear();
observableListView2.Dispose();
observableListView2.Dispose();
}
