'Test that flows refuse to processes unauthenticated messages.'

def testAuthentication1(self):

    flow_obj = self.FlowSetup(flow_test_lib.FlowOrderTest.__name__)
    message_ids = [2, 1, 4, 3, 5]
    self.SendMessages(message_ids, flow_obj.session_id, authenticated=False)
    self.SendOKStatus(6, flow_obj.session_id)
    runner = flow_obj.GetRunner()
    notification = rdf_flows.GrrNotification(timestamp=rdfvalue.RDFDatetime.Now())
    runner.ProcessCompletedRequests(notification)
    self.assertEqual(flow_obj.messages, [])
