public int lookupPrefix_7()
{
string s = "";
using (XmlWriter w = CreateWriter())
{
w.WriteStartElement("x", "Root", "foo");
s = w.LookupPrefix("foo");
CError.Compare(s, "x", "Error");
w.WriteStartElement("y", "node", "foo");
s = w.LookupPrefix("foo");
CError.Compare(s, "y", "Error");
w.WriteStartElement("z", "node1", "foo");
s = w.LookupPrefix("foo");
CError.Compare(s, "z", "Error");
w.WriteEndElement();
s = w.LookupPrefix("foo");
CError.Compare(s, "y", "Error");
w.WriteEndElement();
w.WriteEndElement();
}
return TEST_PASS;
}