193 lines
8.0 KiB
Python
193 lines
8.0 KiB
Python
# -*- coding: utf-8 -*-
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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
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# 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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from unittest import mock
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from monasca_common.confluent_kafka import consumer
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from monasca_common.confluent_kafka import producer
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import confluent_kafka
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from oslotest import base
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FAKE_KAFKA_TOPIC = 'topic'
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FAKE_KAFKA_URL = 'FAKE_KAFKA_URL'
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class TestConfluentKafkaProducer(base.BaseTestCase):
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@mock.patch('confluent_kafka.Producer')
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def setUp(self, mock_confluent_producer):
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super(TestConfluentKafkaProducer, self).setUp()
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self.mock_confluent_producer = mock_confluent_producer
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self.prod = producer.KafkaProducer(FAKE_KAFKA_URL)
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def tearDown(self):
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super(TestConfluentKafkaProducer, self).tearDown()
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def test_kafka_producer_init(self):
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expected_config = {'bootstrap.servers': FAKE_KAFKA_URL}
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self.mock_confluent_producer.assert_called_once_with(expected_config)
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self.assertEqual(self.mock_confluent_producer.return_value,
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self.prod._producer)
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def test_kafka_producer_publish(self):
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topic = FAKE_KAFKA_TOPIC
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messages = [u'message']
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expected_message = b'message'
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self.prod.publish(topic, messages)
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produce_callback = producer.KafkaProducer.delivery_report
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self.prod._producer.produce.assert_called_once_with(topic,
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expected_message,
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None,
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callback=produce_callback)
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self.prod._producer.flush.assert_called_once()
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def test_kafka_producer_publish_one_message_with_key(self):
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topic = FAKE_KAFKA_TOPIC
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one_message = u'message'
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key = u'1000'
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expected_message = b'message'
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self.prod.publish(topic, one_message, key)
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produce_callback = producer.KafkaProducer.delivery_report
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self.prod._producer.produce.assert_called_once_with(topic,
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expected_message,
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key,
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callback=produce_callback)
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self.prod._producer.flush.assert_called_once()
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def test_kafka_producer_publish_exception(self):
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topic = FAKE_KAFKA_TOPIC
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messages = [u'message']
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self.prod._producer.produce.side_effect = \
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confluent_kafka.KafkaException
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self.assertRaises(confluent_kafka.KafkaException, self.prod.publish,
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topic, messages)
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@mock.patch('monasca_common.confluent_kafka.producer.log')
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@mock.patch('confluent_kafka.Message')
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def test_delivery_report_exception(self, mock_message, mock_logger):
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self.assertRaises(confluent_kafka.KafkaException,
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self.prod.delivery_report,
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confluent_kafka.KafkaError,
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confluent_kafka.Message)
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mock_logger.exception.assert_called_once()
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@mock.patch('monasca_common.confluent_kafka.producer.log')
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@mock.patch('confluent_kafka.Message')
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def test_delivery_report(self, mock_message, mock_logger):
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self.prod.delivery_report(None, confluent_kafka.Message)
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mock_logger.debug.assert_called_once()
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@mock.patch('monasca_common.confluent_kafka.producer.log')
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@mock.patch('confluent_kafka.Message')
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def test_delivery_report_with_unicode(self, mock_message, mock_logger):
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mock_message.topic.return_value = 'test_topic'
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mock_message.partition.return_value = '1'
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mock_message.value.return_value = 'gęś'
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self.prod.delivery_report(None, mock_message)
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mock_logger.debug.assert_called_once_with('Message delivered to '
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'test_topic [1]: '
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'gęś')
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class TestConfluentKafkaConsumer(base.BaseTestCase):
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@mock.patch('confluent_kafka.Consumer')
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def setUp(self, mock_confluent_consumer):
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super(TestConfluentKafkaConsumer, self).setUp()
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self.mock_confluent_consumer = mock_confluent_consumer
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self.consumer = consumer.KafkaConsumer('fake_server1,fake_server2',
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'fake_group',
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FAKE_KAFKA_TOPIC, 128,
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'test_client',
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TestConfluentKafkaConsumer.rep_callback,
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TestConfluentKafkaConsumer.com_callback,
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5)
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@staticmethod
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def rep_callback(consumer, partitions):
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pass
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@staticmethod
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def com_callback(consumer, partitions):
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pass
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def tearDown(self):
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super(TestConfluentKafkaConsumer, self).tearDown()
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def test_kafka_consumer_init(self):
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expected_config = {'group.id': 'fake_group',
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'session.timeout.ms': 10000,
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'bootstrap.servers': 'fake_server1,fake_server2',
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'fetch.min.bytes': 128,
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'client.id': 'test_client',
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'enable.auto.commit': False,
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'default.topic.config':
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{'auto.offset.reset': 'earliest'}
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}
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self.mock_confluent_consumer.assert_called_once_with(expected_config)
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self.assertEqual(self.consumer._consumer,
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self.mock_confluent_consumer.return_value)
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self.assertEqual(self.consumer._commit_callback,
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TestConfluentKafkaConsumer.com_callback)
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self.assertEqual(self.consumer._max_commit_interval, 5)
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self.mock_confluent_consumer.return_value.subscribe \
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.assert_called_once_with([FAKE_KAFKA_TOPIC],
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on_revoke=TestConfluentKafkaConsumer.rep_callback)
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@mock.patch('confluent_kafka.Message')
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def test_kafka_consumer_iteration(self, mock_kafka_message):
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mock_kafka_message.return_value.error.return_value = None
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messages = []
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for i in range(5):
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m = mock_kafka_message.return_value
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m.set_value("message{}".format(i))
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messages.append(m)
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self.consumer._consumer.poll.side_effect = messages
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try:
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for index, message in enumerate(self.consumer):
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self.assertEqual(message, messages[index])
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except RuntimeError as re:
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if 'generator raised StopIteration' in str(re):
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pass
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@mock.patch('confluent_kafka.Message')
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@mock.patch('confluent_kafka.KafkaError')
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def test_kafka_consumer_poll_exception(self,
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mock_kafka_error,
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mock_kafka_message):
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mock_kafka_error.return_value.str = 'fake error message'
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mock_kafka_message.return_value.error.return_value = \
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mock_kafka_error
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messages = [mock_kafka_message.return_value]
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self.consumer._consumer.poll.side_effect = messages
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try:
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list(self.consumer)
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except Exception as ex:
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self.assertIsInstance(ex, confluent_kafka.KafkaException)
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@mock.patch('datetime.datetime')
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def test_kafka_commit(self, mock_datetime):
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self.consumer.commit()
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mock_datetime.now.assert_called_once()
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self.mock_confluent_consumer.return_value.commit.assert_called_once()
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