public void BackspaceOverPara()
{
XmlElement para = doc.CreateElement("para");
doc.DocumentElement.AppendChild(para);
XmlText text = doc.CreateTextNode("testing...");
para.AppendChild(text);
Assert.AreEqual(0, v.InvalidNodes.AllErrors.Length, "Errors before backspace");
TextSelectionPoint tsp = new TextSelectionPoint(text, 0);
Selection sel = new Selection(tsp);
SelectionManager selManager = new SelectionManager(new Stylesheet());
selManager.Backspace(sel);
Assert.AreEqual(1, v.InvalidNodes.AllErrors.Length, "Expected error after backspace");
para = doc.CreateElement("para");
doc.DocumentElement.AppendChild(para);
para.AppendChild(text);
Assert.AreEqual(0, v.InvalidNodes.AllErrors.Length, "Errors still exist after undo");
}
