public void AddChildElement()
        {
            treeView.SelectedNode = bodyTreeNode;
            treeViewContainer.AddElementDialogElementNamesReturned.Add("p");
            AddChildElementCommand command = new AddChildElementCommand();

            command.Owner = treeViewContainer;
            command.Run();

            XmlElement paragraphElement = (XmlElement)bodyElement.SelectSingleNode("p");

            Assert.IsNotNull(paragraphElement, "Expected a new <p> element to be appended.");
        }
        public void AddChildElementWithNullOwner()
        {
            AddChildElementCommand command = new AddChildElementCommand();

            command.Run();
        }