public void AddElementDialogCancelled()
        {
            treeView.SelectedNode = bodyTreeNode;
            treeViewContainer.AddElementDialogElementNamesReturned.Add("p");
            treeViewContainer.AddElementDialogResult = DialogResult.Cancel;

            string[] elements = treeViewContainer.SelectNewElements(new string[] { "a" });
            Assert.AreEqual(0, elements.Length);
        }