public void AddAttributeDialogCancelled() { treeView.SelectedNode = bodyTreeNode; treeView.SelectedNode = bodyTreeNode; treeViewContainer.AddAttributeDialogAttributeNamesReturned.Add("class"); treeViewContainer.AddAttributeDialogResult = DialogResult.Cancel; AddAttributeCommand command = new AddAttributeCommand(); string[] attributes = treeViewContainer.SelectNewAttributes(new string[] { "a" }); Assert.AreEqual(0, attributes.Length); }