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# Copyright (C) 2015 Cisco Systems, Inc.
#
# Licensed under the Apache License, Version 2.0 (the "License"); you may
# not use this file except in compliance with the License. You may obtain
# a copy of the License at
#
# http://www.apache.org/licenses/LICENSE-2.0
#
# Unless required by applicable law or agreed to in writing, software
# distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
# WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
# License for the specific language governing permissions and limitations
# under the License.
import testscenarios
from unittest import mock
from confluent_kafka import KafkaException
import oslo_messaging
from oslo_messaging._drivers import impl_kafka as kafka_driver
from oslo_messaging.tests import utils as test_utils
load_tests = testscenarios.load_tests_apply_scenarios
class TestKafkaDriverLoad(test_utils.BaseTestCase):
def setUp(self):
super(TestKafkaDriverLoad, self).setUp()
self.messaging_conf.transport_url = 'kafka:/'
def test_driver_load(self):
transport = oslo_messaging.get_notification_transport(self.conf)
self.assertIsInstance(transport._driver, kafka_driver.KafkaDriver)
class TestKafkaTransportURL(test_utils.BaseTestCase):
scenarios = [
('port', dict(url='kafka://localhost:1234',
expected=dict(hostaddrs=['localhost:1234'],
username=None,
password=None,
vhost=None))),
('vhost', dict(url='kafka://localhost:1234/my_host',
expected=dict(hostaddrs=['localhost:1234'],
username=None,
password=None,
vhost='my_host'))),
('two', dict(url='kafka://localhost:1234,localhost2:1234',
expected=dict(hostaddrs=['localhost:1234',
'localhost2:1234'],
username=None,
password=None,
vhost=None))),
('user', dict(url='kafka://stack:stacksecret@localhost:9092/my_host',
expected=dict(hostaddrs=['localhost:9092'],
username='stack',
password='stacksecret',
vhost='my_host'))),
('user2', dict(url='kafka://stack:stacksecret@localhost:9092,'
'stack2:stacksecret2@localhost:1234/my_host',
expected=dict(hostaddrs=['localhost:9092',
'localhost:1234'],
username='stack',
password='stacksecret',
vhost='my_host'))),
]
def setUp(self):
super(TestKafkaTransportURL, self).setUp()
self.messaging_conf.transport_url = 'kafka:/'
def test_transport_url(self):
transport = oslo_messaging.get_notification_transport(self.conf,
self.url)
self.addCleanup(transport.cleanup)
driver = transport._driver
self.assertIsInstance(driver, kafka_driver.KafkaDriver)
self.assertEqual(self.expected['hostaddrs'], driver.pconn.hostaddrs)
self.assertEqual(self.expected['username'], driver.pconn.username)
self.assertEqual(self.expected['password'], driver.pconn.password)
self.assertEqual(self.expected['vhost'], driver.virtual_host)
class TestKafkaDriver(test_utils.BaseTestCase):
"""Unit Test cases to test the kafka driver
"""
def setUp(self):
super(TestKafkaDriver, self).setUp()
self.messaging_conf.transport_url = 'kafka:/'
transport = oslo_messaging.get_notification_transport(self.conf)
self.driver = transport._driver
def test_send(self):
target = oslo_messaging.Target(topic="topic_test")
self.assertRaises(NotImplementedError,
self.driver.send, target, {}, {})
def test_send_notification(self):
target = oslo_messaging.Target(topic="topic_test")
with mock.patch("confluent_kafka.Producer") as producer:
self.driver.send_notification(
target, {}, {"payload": ["test_1"]},
None, retry=3)
producer.assert_called_once_with({
'bootstrap.servers': '',
'linger.ms': mock.ANY,
'batch.num.messages': mock.ANY,
'compression.codec': 'none',
'security.protocol': 'PLAINTEXT',
'sasl.mechanism': 'PLAIN',
'sasl.username': mock.ANY,
'sasl.password': mock.ANY,
'ssl.ca.location': '',
'ssl.certificate.location': '',
'ssl.key.location': '',
'ssl.key.password': '',
})
def test_send_notification_retries_on_buffer_error(self):
target = oslo_messaging.Target(topic="topic_test")
with mock.patch("confluent_kafka.Producer") as producer:
fake_producer = mock.MagicMock()
fake_producer.produce = mock.Mock(
side_effect=[BufferError, BufferError, None])
producer.return_value = fake_producer
self.driver.send_notification(
target, {}, {"payload": ["test_1"]},
None, retry=3)
assert fake_producer.produce.call_count == 3
def test_send_notification_stops_on_kafka_error(self):
target = oslo_messaging.Target(topic="topic_test")
with mock.patch("confluent_kafka.Producer") as producer:
fake_producer = mock.MagicMock()
fake_producer.produce = mock.Mock(
side_effect=[KafkaException, None])
producer.return_value = fake_producer
self.driver.send_notification(
target, {}, {"payload": ["test_1"]},
None, retry=3)
assert fake_producer.produce.call_count == 1
def test_listen(self):
target = oslo_messaging.Target(topic="topic_test")
self.assertRaises(NotImplementedError, self.driver.listen, target,
None, None)
def test_listen_for_notifications(self):
targets_and_priorities = [
(oslo_messaging.Target(topic="topic_test_1"), "sample"),
]
with mock.patch("confluent_kafka.Consumer") as consumer:
self.driver.listen_for_notifications(
targets_and_priorities, "kafka_test", 1000, 10)
consumer.assert_called_once_with({
'bootstrap.servers': '',
'enable.partition.eof': False,
'group.id': 'kafka_test',
'enable.auto.commit': mock.ANY,
'max.partition.fetch.bytes': mock.ANY,
'security.protocol': 'PLAINTEXT',
'sasl.mechanism': 'PLAIN',
'sasl.username': mock.ANY,
'sasl.password': mock.ANY,
'ssl.ca.location': '',
'ssl.certificate.location': '',
'ssl.key.location': '',
'ssl.key.password': '',
'default.topic.config': {'auto.offset.reset': 'latest'}
})
def test_cleanup(self):
listeners = [mock.MagicMock(), mock.MagicMock()]
self.driver.listeners.extend(listeners)
self.driver.cleanup()
for listener in listeners:
listener.close.assert_called_once_with()
class TestKafkaConnection(test_utils.BaseTestCase):
def setUp(self):
super(TestKafkaConnection, self).setUp()
self.messaging_conf.transport_url = 'kafka:/'
transport = oslo_messaging.get_notification_transport(self.conf)
self.driver = transport._driver
def test_notify(self):
with mock.patch("confluent_kafka.Producer") as producer:
self.driver.pconn.notify_send("fake_topic",
{"fake_ctxt": "fake_param"},
{"fake_text": "fake_message_1"},
10)
assert producer.call_count == 1
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