90 lines
3.4 KiB
Python
90 lines
3.4 KiB
Python
# -*- coding: utf-8 -*-
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# Copyright 2014 Mirantis, Inc.
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#
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# Licensed under the Apache License, Version 2.0 (the "License"); you may
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# not use this file except in compliance with the License. You may obtain
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# a copy of the License at
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#
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# http://www.apache.org/licenses/LICENSE-2.0
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#
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# Unless required by applicable law or agreed to in writing, software
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# distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
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# WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
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# License for the specific language governing permissions and limitations
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# under the License.
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import mock
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from psycopg2.extensions import TransactionRollbackError
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from sqlalchemy.exc import OperationalError
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from nailgun import errors
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from nailgun.rpc import receiverd
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from nailgun.test import base
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class TestRpcAcknowledge(base.BaseTestCase):
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def setUp(self):
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super(TestRpcAcknowledge, self).setUp()
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self.receiver = mock.Mock()
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self.connection = mock.Mock()
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self.consumer = receiverd.RPCConsumer(self.connection, self.receiver)
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self.msg = mock.Mock()
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self.body = {'method': 'test',
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'args': {}}
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def test_message_acked_if_success(self):
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self.consumer.consume_msg(self.body, self.msg)
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self.assertEqual(self.msg.ack.call_count, 1)
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self.assertEqual(self.receiver.test.call_count, 1)
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def test_message_acked_if_no_task_found(self):
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self.receiver.test.side_effect = errors.CannotFindTask
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self.consumer.consume_msg(self.body, self.msg)
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self.assertEqual(self.receiver.test.call_count, 1)
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self.assertEqual(self.msg.ack.call_count, 1)
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def test_message_acked_if_exception(self):
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self.receiver.test.side_effect = Exception
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self.consumer.consume_msg(self.body, self.msg)
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self.assertEqual(self.receiver.test.call_count, 1)
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self.assertEqual(self.msg.ack.call_count, 1)
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def test_message_requeued_on_deadlock(self):
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self.receiver.test.side_effect = [
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OperationalError("SELECT 1", [],
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TransactionRollbackError("deadlock detected")),
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OperationalError("SELECT 1", [],
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TransactionRollbackError),
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]
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self.consumer.consume_msg(self.body, self.msg)
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self.assertFalse(self.msg.ack.called)
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self.assertEqual(self.msg.requeue.call_count, 1)
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self.consumer.consume_msg(self.body, self.msg)
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self.assertFalse(self.msg.ack.called)
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self.assertEqual(self.msg.requeue.call_count, 2)
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def test_message_not_requeued_on_non_deadlock_operational_error(self):
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self.receiver.test.side_effect = [
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OperationalError("SELECT 1", [], Exception("Any message")),
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OperationalError
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]
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self.consumer.consume_msg(self.body, self.msg)
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self.assertEqual(self.msg.ack.call_count, 1)
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self.assertFalse(self.msg.requeue.called)
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self.consumer.consume_msg(self.body, self.msg)
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self.assertEqual(self.msg.ack.call_count, 2)
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self.assertFalse(self.msg.requeue.called)
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def test_message_requeued_in_case_of_interrupt(self):
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self.receiver.test.side_effect = KeyboardInterrupt
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self.assertRaises(
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KeyboardInterrupt,
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self.consumer.consume_msg, self.body, self.msg)
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self.assertFalse(self.msg.ack.called)
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self.assertEqual(self.msg.requeue.call_count, 1)
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