118 lines
4.8 KiB
Python
118 lines
4.8 KiB
Python
# Copyright 2016 Internap.
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#
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# Licensed under the Apache License, Version 2.0 (the "License");
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# you may not use this file except in compliance with the License.
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# You may obtain 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,
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# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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# See the License for the specific language governing permissions and
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# limitations under the License.
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import unittest
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from kombu import Connection
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from flexmock import flexmock, flexmock_teardown
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from almanach import config
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from almanach.adapters.retry_adapter import RetryAdapter
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from kombu.tests import mocks
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from kombu.transport import pyamqp
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class BusAdapterTest(unittest.TestCase):
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def setUp(self):
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self.setup_connection_mock()
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self.setup_config_mock()
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self.retry_adapter = RetryAdapter(self.connection)
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def tearDown(self):
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flexmock_teardown()
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def setup_connection_mock(self):
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mocks.Transport.recoverable_connection_errors = pyamqp.Transport.recoverable_connection_errors
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self.connection = flexmock(Connection(transport=mocks.Transport))
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self.channel_mock = flexmock(self.connection.default_channel)
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self.connection.should_receive('channel').and_return(self.channel_mock)
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def setup_config_mock(self):
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self.config_mock = flexmock(config)
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self.config_mock.should_receive('rabbitmq_time_to_live').and_return(10)
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self.config_mock.should_receive('rabbitmq_routing_key').and_return('almanach.info')
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self.config_mock.should_receive('rabbitmq_retry_queue').and_return('almanach.retry')
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self.config_mock.should_receive('rabbitmq_dead_queue').and_return('almanach.dead')
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self.config_mock.should_receive('rabbitmq_queue').and_return('almanach.info')
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self.config_mock.should_receive('rabbitmq_retry_return_exchange').and_return('almanach')
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self.config_mock.should_receive('rabbitmq_retry_exchange').and_return('almanach.retry')
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self.config_mock.should_receive('rabbitmq_dead_exchange').and_return('almanach.dead')
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def test_declare_retry_exchanges_retries_if_it_fails(self):
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connection = flexmock(Connection(transport=mocks.Transport))
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connection.should_receive('_establish_connection').times(3)\
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.and_raise(IOError)\
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.and_raise(IOError)\
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.and_return(connection.transport.establish_connection())
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self.retry_adapter = RetryAdapter(connection)
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def test_publish_to_retry_queue_happy_path(self):
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message = MyObject
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message.headers = []
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message.body = 'omnomnom'
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message.delivery_info = {'routing_key': 42}
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message.content_type = 'xml/rapture'
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message.content_encoding = 'iso8859-1'
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self.config_mock.should_receive('rabbitmq_retry').and_return(1)
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self.expect_publish_with(message, 'almanach.retry').once()
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self.retry_adapter.publish_to_dead_letter(message)
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def test_publish_to_retry_queue_retries_if_it_fails(self):
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message = MyObject
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message.headers = {}
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message.body = 'omnomnom'
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message.delivery_info = {'routing_key': 42}
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message.content_type = 'xml/rapture'
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message.content_encoding = 'iso8859-1'
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self.config_mock.should_receive('rabbitmq_retry').and_return(2)
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self.expect_publish_with(message, 'almanach.retry').times(4)\
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.and_raise(IOError)\
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.and_raise(IOError)\
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.and_raise(IOError)\
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.and_return(message)
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self.retry_adapter.publish_to_dead_letter(message)
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def test_publish_to_dead_letter_messages_retried_more_than_twice(self):
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message = MyObject
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message.headers = {'x-death': [0, 1, 2, 3]}
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message.body = 'omnomnom'
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message.delivery_info = {'routing_key': ''}
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message.content_type = 'xml/rapture'
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message.content_encoding = 'iso8859-1'
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self.config_mock.should_receive('rabbitmq_retry').and_return(2)
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self.expect_publish_with(message, 'almanach.dead').once()
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self.retry_adapter.publish_to_dead_letter(message)
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def expect_publish_with(self, message, exchange):
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expected_message = {'body': message.body,
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'priority': 0,
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'content_encoding': message.content_encoding,
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'content_type': message.content_type,
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'headers': message.headers,
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'properties': {'delivery_mode': 2}}
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return self.channel_mock.should_receive('basic_publish')\
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.with_args(expected_message, exchange=exchange, routing_key=message.delivery_info['routing_key'],
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mandatory=False, immediate=False)
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class MyObject(object):
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pass |