public void ValueAs ()
{
string xml = "<root>1</root>";
XPathNavigator nav = new XPathDocument (XmlReader.Create (new StringReader (xml))).CreateNavigator ();
nav.MoveToFirstChild ();
nav.MoveToFirstChild ();
Assert.AreEqual ("1", nav.ValueAs (typeof (string), null), "#1");
Assert.AreEqual (1, nav.ValueAs (typeof (int), null), "#2");
}