def METHOD_NAME(self):
    expected = dns.rrset.from_text('ns.secure.example.', 0, dns.rdataclass.IN, 'A', '{prefix}.9'.format(prefix=self._PREFIX))
    query = dns.message.make_query('ns.secure.example', 'A', want_dnssec=True)
    query.flags |= dns.flags.AD
    res = self.sendUDPQuery(query)
    self.assertMessageIsAuthenticated(res)
    self.assertRRsetInAnswer(res, expected)
    self.assertMatchingRRSIGInAnswer(res, expected)