def test_xml_Express3 (self) :
query = "<T> <C> </C> <D> </D> </T>"
queryroot = et.fromstring(query)
result = xml_Express(queryroot)
self.assertTrue(result == ".//T/C/../D/..")
def test_xml_Express1 (self) :
query = "<T></T>"
queryroot = et.fromstring(query)
result = xml_Express(queryroot)
self.assertTrue(result == ".//T")
