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);
}