453 lines
17 KiB
Python
453 lines
17 KiB
Python
# Copyright (c) 2013 Red Hat, Inc.
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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
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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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import collections
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import datetime
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import time
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import uuid
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import mock
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from oslo.utils import timeutils
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from pymongo import cursor
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import pymongo.errors
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import six
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from testtools import matchers
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from zaqar.openstack.common.cache import cache as oslo_cache
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from zaqar.queues import storage
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from zaqar.queues.storage import errors
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from zaqar.queues.storage import mongodb
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from zaqar.queues.storage.mongodb import controllers
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from zaqar.queues.storage.mongodb import options
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from zaqar.queues.storage.mongodb import utils
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from zaqar.queues.storage import pooling
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from zaqar import tests as testing
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from zaqar.tests.queues.storage import base
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class MongodbSetupMixin(object):
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def _purge_databases(self):
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databases = (self.driver.message_databases +
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[self.driver.queues_database])
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for db in databases:
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self.driver.connection.drop_database(db)
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def _prepare_conf(self):
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self.config(options.MONGODB_GROUP,
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database=uuid.uuid4().hex)
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class MongodbUtilsTest(MongodbSetupMixin, testing.TestBase):
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config_file = 'wsgi_mongodb.conf'
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def setUp(self):
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super(MongodbUtilsTest, self).setUp()
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self.conf.register_opts(options.MONGODB_OPTIONS,
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group=options.MONGODB_GROUP)
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self.mongodb_conf = self.conf[options.MONGODB_GROUP]
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MockDriver = collections.namedtuple('MockDriver', 'mongodb_conf')
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self.driver = MockDriver(self.mongodb_conf)
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def test_scope_queue_name(self):
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self.assertEqual(utils.scope_queue_name('my-q'), '/my-q')
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self.assertEqual(utils.scope_queue_name('my-q', None), '/my-q')
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self.assertEqual(utils.scope_queue_name('my-q', '123'), '123/my-q')
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self.assertEqual(utils.scope_queue_name(None), '/')
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self.assertEqual(utils.scope_queue_name(None, '123'), '123/')
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def test_descope_queue_name(self):
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self.assertEqual(utils.descope_queue_name('/'), None)
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self.assertEqual(utils.descope_queue_name('/some-pig'), 'some-pig')
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self.assertEqual(utils.descope_queue_name('radiant/some-pig'),
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'some-pig')
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def test_calculate_backoff(self):
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sec = utils.calculate_backoff(0, 10, 2, 0)
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self.assertEqual(sec, 0)
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sec = utils.calculate_backoff(9, 10, 2, 0)
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self.assertEqual(sec, 1.8)
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sec = utils.calculate_backoff(4, 10, 2, 0)
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self.assertEqual(sec, 0.8)
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sec = utils.calculate_backoff(4, 10, 2, 1)
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if sec != 0.8:
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self.assertThat(sec, matchers.GreaterThan(0.8))
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self.assertThat(sec, matchers.LessThan(1.8))
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self.assertRaises(ValueError, utils.calculate_backoff, 0, 10, -2, -1)
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self.assertRaises(ValueError, utils.calculate_backoff, 0, 10, -2, 0)
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self.assertRaises(ValueError, utils.calculate_backoff, 0, 10, 2, -1)
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self.assertRaises(ValueError, utils.calculate_backoff, -2, -10, 2, 0)
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self.assertRaises(ValueError, utils.calculate_backoff, 2, -10, 2, 0)
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self.assertRaises(ValueError, utils.calculate_backoff, -2, 10, 2, 0)
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self.assertRaises(ValueError, utils.calculate_backoff, -1, 10, 2, 0)
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self.assertRaises(ValueError, utils.calculate_backoff, 10, 10, 2, 0)
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self.assertRaises(ValueError, utils.calculate_backoff, 11, 10, 2, 0)
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def test_retries_on_autoreconnect(self):
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num_calls = [0]
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@utils.retries_on_autoreconnect
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def _raises_autoreconnect(self):
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num_calls[0] += 1
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raise pymongo.errors.AutoReconnect()
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self.assertRaises(pymongo.errors.AutoReconnect,
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_raises_autoreconnect, self)
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self.assertEqual(num_calls, [self.mongodb_conf.max_reconnect_attempts])
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def test_retries_on_autoreconnect_neg(self):
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num_calls = [0]
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@utils.retries_on_autoreconnect
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def _raises_autoreconnect(self):
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num_calls[0] += 1
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# NOTE(kgriffs): Don't exceed until the last attempt
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if num_calls[0] < self.mongodb_conf.max_reconnect_attempts:
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raise pymongo.errors.AutoReconnect()
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# NOTE(kgriffs): Test that this does *not* raise AutoReconnect
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_raises_autoreconnect(self)
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self.assertEqual(num_calls, [self.mongodb_conf.max_reconnect_attempts])
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@testing.requires_mongodb
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class MongodbDriverTest(MongodbSetupMixin, testing.TestBase):
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config_file = 'wsgi_mongodb.conf'
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def test_db_instance(self):
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cache = oslo_cache.get_cache()
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driver = mongodb.DataDriver(self.conf, cache)
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databases = (driver.message_databases +
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[driver.queues_database])
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for db in databases:
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self.assertThat(db.name, matchers.StartsWith(
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driver.mongodb_conf.database))
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def test_version_match(self):
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cache = oslo_cache.get_cache()
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with mock.patch('pymongo.MongoClient.server_info') as info:
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info.return_value = {'version': '2.1'}
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self.assertRaises(RuntimeError, mongodb.DataDriver,
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self.conf, cache)
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info.return_value = {'version': '2.11'}
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try:
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mongodb.DataDriver(self.conf, cache)
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except RuntimeError:
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self.fail('version match failed')
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@testing.requires_mongodb
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class MongodbQueueTests(MongodbSetupMixin, base.QueueControllerTest):
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driver_class = mongodb.DataDriver
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config_file = 'wsgi_mongodb.conf'
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controller_class = controllers.QueueController
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def test_indexes(self):
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collection = self.controller._collection
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indexes = collection.index_information()
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self.assertIn('p_q_1', indexes)
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def test_messages_purged(self):
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queue_name = 'test'
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self.controller.create(queue_name)
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self.message_controller.post(queue_name,
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[{'ttl': 60}],
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1234)
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self.controller.delete(queue_name)
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for collection in self.message_controller._collections:
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self.assertEqual(collection.find({'q': queue_name}).count(), 0)
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def test_raises_connection_error(self):
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with mock.patch.object(cursor.Cursor,
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'next' if six.PY2 else '__next__',
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autospec=True) as method:
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error = pymongo.errors.ConnectionFailure()
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method.side_effect = error
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queues = next(self.controller.list())
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self.assertRaises(storage.errors.ConnectionError,
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queues.next)
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@testing.requires_mongodb
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class MongodbMessageTests(MongodbSetupMixin, base.MessageControllerTest):
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driver_class = mongodb.DataDriver
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config_file = 'wsgi_mongodb.conf'
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controller_class = controllers.MessageController
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# NOTE(kgriffs): MongoDB's TTL scavenger only runs once a minute
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gc_interval = 60
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def test_indexes(self):
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for collection in self.controller._collections:
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indexes = collection.index_information()
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self.assertIn('active', indexes)
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self.assertIn('claimed', indexes)
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self.assertIn('queue_marker', indexes)
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self.assertIn('counting', indexes)
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def test_message_counter(self):
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queue_name = self.queue_name
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iterations = 10
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seed_marker1 = self.queue_controller._get_counter(queue_name,
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self.project)
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self.assertEqual(seed_marker1, 1, 'First marker is 1')
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for i in range(iterations):
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self.controller.post(queue_name, [{'ttl': 60}],
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'uuid', project=self.project)
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marker1 = self.queue_controller._get_counter(queue_name,
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self.project)
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marker2 = self.queue_controller._get_counter(queue_name,
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self.project)
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marker3 = self.queue_controller._get_counter(queue_name,
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self.project)
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self.assertEqual(marker1, marker2)
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self.assertEqual(marker2, marker3)
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self.assertEqual(marker1, i + 2)
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new_value = self.queue_controller._inc_counter(queue_name,
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self.project)
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self.assertIsNotNone(new_value)
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value_before = self.queue_controller._get_counter(queue_name,
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project=self.project)
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new_value = self.queue_controller._inc_counter(queue_name,
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project=self.project)
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self.assertIsNotNone(new_value)
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value_after = self.queue_controller._get_counter(queue_name,
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project=self.project)
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self.assertEqual(value_after, value_before + 1)
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value_before = value_after
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new_value = self.queue_controller._inc_counter(queue_name,
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project=self.project,
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amount=7)
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value_after = self.queue_controller._get_counter(queue_name,
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project=self.project)
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self.assertEqual(value_after, value_before + 7)
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self.assertEqual(value_after, new_value)
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reference_value = value_after
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unchanged = self.queue_controller._inc_counter(queue_name,
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project=self.project,
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window=10)
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self.assertIsNone(unchanged)
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now = timeutils.utcnow() + datetime.timedelta(seconds=10)
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timeutils_utcnow = 'oslo.utils.timeutils.utcnow'
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with mock.patch(timeutils_utcnow) as mock_utcnow:
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mock_utcnow.return_value = now
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changed = self.queue_controller._inc_counter(queue_name,
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project=self.project,
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window=5)
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self.assertEqual(changed, reference_value + 1)
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def test_race_condition_on_post(self):
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queue_name = self.queue_name
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expected_messages = [
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{
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'ttl': 60,
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'body': {
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'event': 'BackupStarted',
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'backupId': 'c378813c-3f0b-11e2-ad92-7823d2b0f3ce',
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},
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},
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{
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'ttl': 60,
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'body': {
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'event': 'BackupStarted',
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'backupId': 'd378813c-3f0b-11e2-ad92-7823d2b0f3ce',
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},
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},
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{
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'ttl': 60,
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'body': {
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'event': 'BackupStarted',
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'backupId': 'e378813c-3f0b-11e2-ad92-7823d2b0f3ce',
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},
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},
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]
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uuid = '97b64000-2526-11e3-b088-d85c1300734c'
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# NOTE(kgriffs): Patch _inc_counter so it is a noop, so that
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# the second time we post, we will get a collision. This simulates
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# what happens when we have parallel requests and the "winning"
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# requests hasn't gotten around to calling _inc_counter before the
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# "losing" request attempts to insert it's batch of messages.
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with mock.patch.object(mongodb.queues.QueueController,
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'_inc_counter', autospec=True) as method:
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method.return_value = 2
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messages = expected_messages[:1]
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created = list(self.controller.post(queue_name, messages,
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uuid, project=self.project))
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self.assertEqual(len(created), 1)
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# Force infinite retries
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if testing.RUN_SLOW_TESTS:
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method.return_value = None
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with testing.expect(errors.MessageConflict):
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self.controller.post(queue_name, messages,
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uuid, project=self.project)
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created = list(self.controller.post(queue_name,
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expected_messages[1:],
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uuid, project=self.project))
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self.assertEqual(len(created), 2)
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expected_ids = [m['body']['backupId'] for m in expected_messages]
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interaction = self.controller.list(queue_name, client_uuid=uuid,
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echo=True, project=self.project)
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actual_messages = list(next(interaction))
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self.assertEqual(len(actual_messages), len(expected_messages))
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actual_ids = [m['body']['backupId'] for m in actual_messages]
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self.assertEqual(actual_ids, expected_ids)
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@testing.requires_mongodb
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class MongodbClaimTests(MongodbSetupMixin, base.ClaimControllerTest):
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driver_class = mongodb.DataDriver
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config_file = 'wsgi_mongodb.conf'
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controller_class = controllers.ClaimController
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def test_claim_doesnt_exist(self):
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"""Verifies that operations fail on expired/missing claims.
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Methods should raise an exception when the claim doesn't
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exists and/or has expired.
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"""
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epoch = '000000000000000000000000'
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self.assertRaises(storage.errors.ClaimDoesNotExist,
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self.controller.get, self.queue_name,
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epoch, project=self.project)
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claim_id, messages = self.controller.create(self.queue_name,
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{'ttl': 1, 'grace': 0},
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project=self.project)
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# Lets let it expire
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time.sleep(1)
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self.assertRaises(storage.errors.ClaimDoesNotExist,
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self.controller.update, self.queue_name,
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claim_id, {}, project=self.project)
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self.assertRaises(storage.errors.ClaimDoesNotExist,
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self.controller.update, self.queue_name,
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claim_id, {}, project=self.project)
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#
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# TODO(kgriffs): Do these need database purges as well as those above?
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#
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@testing.requires_mongodb
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class MongodbPoolsTests(base.PoolsControllerTest):
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driver_class = mongodb.ControlDriver
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controller_class = controllers.PoolsController
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def setUp(self):
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super(MongodbPoolsTests, self).setUp()
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self.load_conf('wsgi_mongodb.conf')
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def tearDown(self):
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super(MongodbPoolsTests, self).tearDown()
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@testing.requires_mongodb
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class MongodbCatalogueTests(base.CatalogueControllerTest):
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driver_class = mongodb.ControlDriver
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controller_class = controllers.CatalogueController
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def setUp(self):
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super(MongodbCatalogueTests, self).setUp()
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self.load_conf('wsgi_mongodb.conf')
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def tearDown(self):
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self.controller.drop_all()
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super(MongodbCatalogueTests, self).tearDown()
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@testing.requires_mongodb
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class PooledMessageTests(base.MessageControllerTest):
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config_file = 'wsgi_mongodb_pooled.conf'
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controller_class = pooling.MessageController
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driver_class = pooling.DataDriver
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control_driver_class = mongodb.ControlDriver
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controller_base_class = pooling.RoutingController
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@testing.requires_mongodb
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class PooledQueueTests(base.QueueControllerTest):
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config_file = 'wsgi_mongodb_pooled.conf'
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controller_class = pooling.QueueController
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driver_class = pooling.DataDriver
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control_driver_class = mongodb.ControlDriver
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controller_base_class = pooling.RoutingController
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@testing.requires_mongodb
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class PooledClaimsTests(base.ClaimControllerTest):
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config_file = 'wsgi_mongodb_pooled.conf'
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controller_class = pooling.ClaimController
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driver_class = pooling.DataDriver
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control_driver_class = mongodb.ControlDriver
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controller_base_class = pooling.RoutingController
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@testing.requires_mongodb
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class MongodbFlavorsTest(base.FlavorsControllerTest):
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driver_class = mongodb.ControlDriver
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controller_class = controllers.FlavorsController
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def setUp(self):
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super(MongodbFlavorsTest, self).setUp()
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self.load_conf('wsgi_mongodb.conf')
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self.addCleanup(self.controller.drop_all)
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