137 lines
5.6 KiB
Python
137 lines
5.6 KiB
Python
#
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# Copyright 2013 Red Hat, 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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"""Tests for aodh.evaluator.AlarmEvaluationService.
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"""
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import mock
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from oslo_config import fixture as fixture_config
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from stevedore import extension
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from aodh import evaluator
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from aodh import service
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from aodh.tests import base as tests_base
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class TestAlarmEvaluationService(tests_base.BaseTestCase):
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def setUp(self):
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super(TestAlarmEvaluationService, self).setUp()
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conf = service.prepare_service(argv=[], config_files=[])
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self.CONF = self.useFixture(fixture_config.Config(conf)).conf
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self.setup_messaging(self.CONF)
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self.threshold_eval = mock.Mock()
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self.evaluators = extension.ExtensionManager.make_test_instance(
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[
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extension.Extension(
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'threshold',
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None,
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None,
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self.threshold_eval),
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]
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)
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self.storage_conn = mock.MagicMock()
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self.svc = evaluator.AlarmEvaluationService(self.CONF)
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self.svc.tg = mock.Mock()
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self.svc.partition_coordinator = mock.MagicMock()
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p_coord = self.svc.partition_coordinator
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p_coord.extract_my_subset.side_effect = lambda _, x: x
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self.svc.evaluators = self.evaluators
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self.svc.supported_evaluators = ['threshold']
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def _do_test_start(self, test_interval=120,
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coordination_heartbeat=1.0,
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coordination_active=False):
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self.CONF.set_override('evaluation_interval',
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test_interval)
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self.CONF.set_override('heartbeat',
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coordination_heartbeat,
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group='coordination',
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enforce_type=True)
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with mock.patch('aodh.storage.get_connection_from_config',
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return_value=self.storage_conn):
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p_coord_mock = self.svc.partition_coordinator
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p_coord_mock.is_active.return_value = coordination_active
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self.svc.start()
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self.svc.partition_coordinator.start.assert_called_once_with()
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self.svc.partition_coordinator.join_group.assert_called_once_with(
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self.svc.PARTITIONING_GROUP_NAME)
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actual = self.svc.tg.add_timer.call_args_list
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self.assertEqual([mock.call(604800, mock.ANY)], actual)
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def test_start_singleton(self):
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self._do_test_start(coordination_active=False)
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def test_start_coordinated(self):
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self._do_test_start(coordination_active=True)
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def test_start_coordinated_high_hb_interval(self):
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self._do_test_start(coordination_active=True, test_interval=10,
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coordination_heartbeat=5)
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def test_evaluation_cycle(self):
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alarm = mock.Mock(type='threshold')
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self.storage_conn.get_alarms.return_value = [alarm]
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with mock.patch('aodh.storage.get_connection_from_config',
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return_value=self.storage_conn):
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p_coord_mock = self.svc.partition_coordinator
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p_coord_mock.extract_my_subset.return_value = [alarm]
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self.svc._evaluate_assigned_alarms()
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p_coord_mock.extract_my_subset.assert_called_once_with(
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self.svc.PARTITIONING_GROUP_NAME, [alarm])
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self.threshold_eval.evaluate.assert_called_once_with(alarm)
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def test_evaluation_cycle_with_bad_alarm(self):
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alarms = [
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mock.Mock(type='threshold', name='bad'),
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mock.Mock(type='threshold', name='good'),
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]
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self.storage_conn.get_alarms.return_value = alarms
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self.threshold_eval.evaluate.side_effect = [Exception('Boom!'), None]
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with mock.patch('aodh.storage.get_connection_from_config',
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return_value=self.storage_conn):
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p_coord_mock = self.svc.partition_coordinator
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p_coord_mock.extract_my_subset.return_value = alarms
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self.svc._evaluate_assigned_alarms()
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self.assertEqual([mock.call(alarms[0]), mock.call(alarms[1])],
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self.threshold_eval.evaluate.call_args_list)
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def test_unknown_extension_skipped(self):
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alarms = [
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mock.Mock(type='not_existing_type'),
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mock.Mock(type='threshold')
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]
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self.storage_conn.get_alarms.return_value = alarms
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with mock.patch('aodh.storage.get_connection_from_config',
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return_value=self.storage_conn):
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self.svc.start()
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self.svc._evaluate_assigned_alarms()
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self.threshold_eval.evaluate.assert_called_once_with(alarms[1])
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def test_check_alarm_query_constraints(self):
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self.storage_conn.get_alarms.return_value = []
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with mock.patch('aodh.storage.get_connection_from_config',
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return_value=self.storage_conn):
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self.svc.start()
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self.svc._evaluate_assigned_alarms()
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expected = [({'enabled': True, 'exclude': {'type': 'event'}},)]
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self.assertEqual(expected,
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self.storage_conn.get_alarms.call_args_list)
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