140 lines
6.0 KiB
Python
140 lines
6.0 KiB
Python
# (C) Copyright 2019 Fujitsu Limited
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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 os
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from unittest import mock
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from oslotest import base
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from oslo_config import cfg
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from monasca_common.kafka import consumer
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from monasca_persister.kafka.legacy_kafka_persister import LegacyKafkaPersister
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from monasca_persister.repositories import data_points
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from monasca_persister.repositories.persister import LOG
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class FakeException(Exception):
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pass
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class TestPersisterRepo(base.BaseTestCase):
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def setUp(self):
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super(TestPersisterRepo, self).setUp()
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self._set_patchers()
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self._set_mocks()
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self.persister = LegacyKafkaPersister(self.mock_kafka,
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self.mock_zookeeper, mock.Mock())
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def _set_mocks(self):
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self.mock_kafka = mock.Mock()
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self.mock_kafka.topic = 'topic'
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self.mock_kafka.batch_size = 1
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self.mock_kafka.zookeeper_path = ''
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self.mock_kafka.group_id = 0
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self.mock_kafka.max_wait_time_seconds = 0
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self.mock_zookeeper = mock.Mock(uri='')
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self.mock_consumer_init = self.patch_kafka_init.start()
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self.mock_client_init = self.patch_kafka_client_init.start()
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self.mock_consumer_commit = self.patch_kafka_commit.start()
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self.mock_log_warning = self.patch_log_warning.start()
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self.mock_log_exception = self.patch_log_exception.start()
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def _set_patchers(self):
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self.patch_kafka_init = mock.patch.object(consumer.KafkaConsumer,
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'__init__',
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return_value=None)
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self.patch_kafka_commit = \
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mock.patch.object(consumer.KafkaConsumer, 'commit',
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return_value=FakeException())
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self.patch_kafka_client_init = \
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mock.patch.object(consumer.kafka_client.KafkaClient, '__init__',
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return_value=None)
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self.patch_log_warning = mock.patch.object(LOG, 'warning')
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self.patch_log_exception = mock.patch.object(LOG, 'exception')
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def tearDown(self):
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super(TestPersisterRepo, self).tearDown()
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self.mock_consumer_init.reset_mock()
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self.mock_client_init.reset_mock()
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self.mock_consumer_commit.reset_mock()
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self.mock_log_warning.reset_mock()
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self.mock_log_exception.reset_mock()
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self.patch_kafka_init.stop()
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self.patch_kafka_commit.stop()
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self.patch_kafka_client_init.stop()
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self.patch_log_warning.stop()
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self.patch_log_exception.stop()
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def test_flush_if_data_points_is_none(self):
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self.persister._data_points = None
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self.assertIsNone(self.persister._flush())
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def test_run_if_consumer_is_faulty(self):
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with mock.patch.object(os, '_exit', return_value=None) as mock_exit:
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self.persister._data_points = data_points.DataPointsAsDict()
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self.persister._consumer = mock.Mock(side_effect=FakeException)
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self.persister.run()
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mock_exit.assert_called_once_with(1)
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def test_run_logs_exception_from_consumer(self):
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with mock.patch.object(self.persister.repository, 'process_message',
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side_effect=FakeException):
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self.persister._data_points = data_points.DataPointsAsDict()
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self.persister._consumer = ['aa']
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self.persister.run()
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self.mock_log_exception.assert_called()
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def test_run_commit_is_called_and_data_points_is_emptied(self):
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with mock.patch.object(self.persister.repository, 'process_message',
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return_value=('message', 'tenant_id')):
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with mock.patch.object(self.persister, '_consumer',
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return_value=mock.Mock()) as mock_consumer:
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self.persister._data_points = data_points.DataPointsAsDict()
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self.persister._data_points.append('fake_tenant_id', 'some')
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self.persister._consumer.__iter__.return_value = ('aa', 'bb')
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self.persister._batch_size = 1
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self.persister.run()
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mock_consumer.commit.assert_called()
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self.assertEqual(0, self.persister._data_points.counter)
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def test_flush_logs_warning_and_exception(self):
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exception_msgs = ['partial write: points beyond retention policy dropped',
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'unable to parse']
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with(mock.patch.object(cfg.CONF.repositories,
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'ignore_parse_point_error', return_value=True)):
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for elem in exception_msgs:
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with mock.patch.object(LOG, 'info', side_effect=FakeException(
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elem)):
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self.persister._data_points = data_points.DataPointsAsDict()
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self.persister._data_points.append('fake_tenant_id', 'some')
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self.persister._flush()
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self.mock_log_warning.assert_called()
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@mock.patch.object(LOG, 'info', side_effect=FakeException())
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def test_flush_logs_exception(self, mock_log_info):
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with(mock.patch.object(cfg.CONF.repositories,
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'ignore_parse_point_error',
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return_value=False)):
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mock_log_info.side_effect.message = 'some msg'
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self.persister._data_points = data_points.DataPointsAsDict()
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self.persister._data_points.append('fake_tenant_id', 'some')
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self.assertRaises(FakeException, self.persister._flush)
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self.mock_log_exception.assert_called()
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