'If a name is missing, L{Resolver.lookupAddress} returns a L{Deferred}
which fails with L{DNSNameError}.'

def test_missingName(self):

    servers = {('1.1.2.3', 53): {('foo.example.com', A): {'rCode': ENAME}}}
    resolver = self._getResolver(servers)
    d = resolver.lookupAddress('foo.example.com')
    return self.assertFailure(d, DNSNameError)
