public void OneServicePerBuffer() { var textBuffer = new TextBuffer("", MockFor<IContentType>().Object); var undoServiceFactory = new UndoServiceFactory(); var undoService = undoServiceFactory.ForTextBuffer(textBuffer); Assert.AreSame(undoService, undoServiceFactory.ForTextBuffer(textBuffer)); }
public void UndoInsertion() { var textBuffer = new TextBuffer("", MockFor<IContentType>().Object); var undoServiceFactory = new UndoServiceFactory(); var undoService = undoServiceFactory.ForTextBuffer(textBuffer); var oldSnapshot = textBuffer.CurrentSnapshot; textBuffer.Insert(0, "text"); var changes = new List<TextChangeArgs>(); textBuffer.Changed += (sender, args) => changes.Add(args); undoService.Undo(); Assert.AreEqual(1, changes.Count); Assert.AreSame(oldSnapshot, textBuffer.CurrentSnapshot); }