a76a51a78c
This producer singleton works only if one transport use kafka. If multiple transports with kafka are used, their overrides each other the producer on each send. This change creates only one producer per connection. A later optimisation can be one producer per driver instance. Change-Id: I429f7c5efcb41690dd1b17f856bda2425c788e53
139 lines
5.2 KiB
Python
139 lines
5.2 KiB
Python
# Copyright (C) 2015 Cisco Systems, 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 kafka
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import kafka.errors
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import mock
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import testscenarios
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import oslo_messaging
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from oslo_messaging._drivers import common as common_driver
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from oslo_messaging._drivers import impl_kafka as kafka_driver
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from oslo_messaging.tests import utils as test_utils
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load_tests = testscenarios.load_tests_apply_scenarios
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class TestKafkaDriverLoad(test_utils.BaseTestCase):
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def setUp(self):
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super(TestKafkaDriverLoad, self).setUp()
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self.messaging_conf.transport_driver = 'kafka'
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def test_driver_load(self):
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transport = oslo_messaging.get_transport(self.conf)
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self.assertIsInstance(transport._driver, kafka_driver.KafkaDriver)
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class TestKafkaTransportURL(test_utils.BaseTestCase):
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scenarios = [
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('none', dict(url=None,
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expected=dict(hostaddrs=['localhost:9092']))),
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('empty', dict(url='kafka:///',
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expected=dict(hostaddrs=['localhost:9092']))),
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('host', dict(url='kafka://127.0.0.1',
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expected=dict(hostaddrs=['127.0.0.1:9092']))),
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('port', dict(url='kafka://localhost:1234',
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expected=dict(hostaddrs=['localhost:1234']))),
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('two', dict(url='kafka://localhost:1234,localhost2:1234',
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expected=dict(hostaddrs=['localhost:1234',
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'localhost2:1234']))),
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]
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def setUp(self):
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super(TestKafkaTransportURL, self).setUp()
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self.messaging_conf.transport_driver = 'kafka'
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def test_transport_url(self):
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transport = oslo_messaging.get_transport(self.conf, self.url)
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self.addCleanup(transport.cleanup)
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driver = transport._driver
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conn = driver._get_connection(common_driver.PURPOSE_SEND)
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self.assertEqual(self.expected['hostaddrs'], conn.hostaddrs)
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class TestKafkaDriver(test_utils.BaseTestCase):
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"""Unit Test cases to test the kafka driver
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"""
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def setUp(self):
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super(TestKafkaDriver, self).setUp()
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self.messaging_conf.transport_driver = 'kafka'
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transport = oslo_messaging.get_transport(self.conf)
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self.driver = transport._driver
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def test_send(self):
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target = oslo_messaging.Target(topic="topic_test")
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self.assertRaises(NotImplementedError,
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self.driver.send, target, {}, {})
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def test_send_notification(self):
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target = oslo_messaging.Target(topic="topic_test")
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with mock.patch("kafka.KafkaProducer") as fake_producer_class:
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fake_producer = fake_producer_class.return_value
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fake_producer.send.side_effect = kafka.errors.NoBrokersAvailable
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self.assertRaises(kafka.errors.NoBrokersAvailable,
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self.driver.send_notification,
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target, {}, {"payload": ["test_1"]},
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None, retry=3)
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self.assertEqual(3, fake_producer.send.call_count)
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def test_listen(self):
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target = oslo_messaging.Target(topic="topic_test")
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self.assertRaises(NotImplementedError, self.driver.listen, target,
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None, None)
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def test_listen_for_notifications(self):
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targets_and_priorities = [
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(oslo_messaging.Target(topic="topic_test_1"), "sample"),
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]
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expected_topics = ["topic_test_1.sample"]
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with mock.patch("kafka.KafkaConsumer") as consumer:
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self.driver.listen_for_notifications(
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targets_and_priorities, "kafka_test", 1000, 10)
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consumer.assert_called_once_with(
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*expected_topics, group_id="kafka_test",
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bootstrap_servers=['localhost:9092'],
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max_partition_fetch_bytes=mock.ANY,
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selector=mock.ANY
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)
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def test_cleanup(self):
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listeners = [mock.MagicMock(), mock.MagicMock()]
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self.driver.listeners.extend(listeners)
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self.driver.cleanup()
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for listener in listeners:
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listener.close.assert_called_once()
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class TestKafkaConnection(test_utils.BaseTestCase):
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def setUp(self):
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super(TestKafkaConnection, self).setUp()
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self.messaging_conf.transport_driver = 'kafka'
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transport = oslo_messaging.get_transport(self.conf)
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self.driver = transport._driver
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def test_notify(self):
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conn = self.driver._get_connection(common_driver.PURPOSE_SEND)
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with mock.patch("kafka.KafkaProducer") as fake_producer_class:
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fake_producer = fake_producer_class.return_value
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conn.notify_send("fake_topic", {"fake_ctxt": "fake_param"},
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{"fake_text": "fake_message_1"}, 10)
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self.assertEqual(1, len(fake_producer.send.mock_calls))
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