public void Test()
{
Assert.AreEqual(0, notifyCollectionChangedActions.Count);
target.Add(100);
Assert.AreEqual(1, notifyCollectionChangedActions.Count);
target.RemoveAt(0);
Assert.AreEqual(2, notifyCollectionChangedActions.Count);
Assert.IsTrue(target.Undo());
Assert.AreEqual(3, notifyCollectionChangedActions.Count);
Assert.IsTrue(target.Undo());
Assert.AreEqual(4, notifyCollectionChangedActions.Count);
Assert.IsFalse(target.Undo());
Assert.AreEqual(4, notifyCollectionChangedActions.Count);
Assert.IsTrue(target.Redo());
Assert.AreEqual(5, notifyCollectionChangedActions.Count);
Assert.IsTrue(target.Redo());
Assert.AreEqual(6, notifyCollectionChangedActions.Count);
Assert.IsFalse(target.Redo());
Assert.AreEqual(6, notifyCollectionChangedActions.Count);
}
public void UndoRedoObservableCollectionTest()
{
// ObservableCollection which support undo/redo.
var target = new UndoRedoObservableCollection <int>();
target.CollectionChanged += ObservableCollection_CollectionChanged;
target.Add(100);
// You can undo/redo also.
Assert.IsTrue(target.CanUndo);
Assert.IsFalse(target.CanRedo);
Assert.IsTrue(target.Undo());
Assert.IsTrue(target.Redo());