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#
# Copyright 2013 Red Hat, Inc
#
# Author: Eoghan Glynn <eglynn@redhat.com>
#
# 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.
"""Tests for ceilometer.alarm.service.SingletonAlarmService.
"""
import mock
from oslo.config import fixture as fixture_config
from stevedore import extension
from ceilometer.alarm import service
from ceilometer.tests import base as tests_base
class TestAlarmEvaluationService(tests_base.BaseTestCase):
def setUp(self):
super(TestAlarmEvaluationService, self).setUp()
self.CONF = self.useFixture(fixture_config.Config()).conf
self.setup_messaging(self.CONF)
self.threshold_eval = mock.Mock()
self.evaluators = extension.ExtensionManager.make_test_instance(
[
extension.Extension(
'threshold',
None,
None,
self.threshold_eval),
]
)
self.api_client = mock.MagicMock()
self.svc = service.AlarmEvaluationService()
self.svc.tg = mock.Mock()
self.svc.partition_coordinator = mock.MagicMock()
p_coord = self.svc.partition_coordinator
p_coord.extract_my_subset.side_effect = lambda _, x: x
self.svc.evaluators = self.evaluators
self.svc.supported_evaluators = ['threshold']
def _do_test_start(self, test_interval=120,
coordination_heartbeat=1.0,
coordination_active=False):
self.CONF.set_override('evaluation_interval',
test_interval,
group='alarm')
self.CONF.set_override('heartbeat',
coordination_heartbeat,
group='coordination')
with mock.patch('ceilometerclient.client.get_client',
return_value=self.api_client):
p_coord_mock = self.svc.partition_coordinator
p_coord_mock.is_active.return_value = coordination_active
self.svc.start()
self.svc.partition_coordinator.start.assert_called_once_with()
self.svc.partition_coordinator.join_group.assert_called_once_with(
self.svc.PARTITIONING_GROUP_NAME)
initial_delay = test_interval if coordination_active else None
expected = [
mock.call(test_interval,
self.svc._evaluate_assigned_alarms,
initial_delay=initial_delay),
mock.call(604800, mock.ANY),
]
if coordination_active:
hb_interval = min(coordination_heartbeat, test_interval / 4)
hb_call = mock.call(hb_interval,
self.svc.partition_coordinator.heartbeat)
expected.insert(1, hb_call)
actual = self.svc.tg.add_timer.call_args_list
self.assertEqual(expected, actual)
def test_start_singleton(self):
self._do_test_start(coordination_active=False)
def test_start_coordinated(self):
self._do_test_start(coordination_active=True)
def test_start_coordinated_high_hb_interval(self):
self._do_test_start(coordination_active=True, test_interval=10,
coordination_heartbeat=5)
def test_evaluation_cycle(self):
alarm = mock.Mock(type='threshold')
self.api_client.alarms.list.return_value = [alarm]
with mock.patch('ceilometerclient.client.get_client',
return_value=self.api_client):
p_coord_mock = self.svc.partition_coordinator
p_coord_mock.extract_my_subset.return_value = [alarm]
self.svc._evaluate_assigned_alarms()
p_coord_mock.extract_my_subset.assert_called_once_with(
self.svc.PARTITIONING_GROUP_NAME, [alarm])
self.threshold_eval.evaluate.assert_called_once_with(alarm)
def test_unknown_extension_skipped(self):
alarms = [
mock.Mock(type='not_existing_type'),
mock.Mock(type='threshold')
]
self.api_client.alarms.list.return_value = alarms
with mock.patch('ceilometerclient.client.get_client',
return_value=self.api_client):
self.svc.start()
self.svc._evaluate_assigned_alarms()
self.threshold_eval.evaluate.assert_called_once_with(alarms[1])
def test_singleton_endpoint_types(self):
endpoint_types = ["internalURL", "publicURL"]
for endpoint_type in endpoint_types:
self.CONF.set_override('os_endpoint_type',
endpoint_type,
group='service_credentials')
with mock.patch('ceilometerclient.client.get_client') as client:
self.svc.api_client = None
self.svc._evaluate_assigned_alarms()
conf = self.CONF.service_credentials
expected = [mock.call(2,
os_auth_url=conf.os_auth_url,
os_region_name=conf.os_region_name,
os_tenant_name=conf.os_tenant_name,
os_password=conf.os_password,
os_username=conf.os_username,
os_cacert=conf.os_cacert,
os_endpoint_type=conf.os_endpoint_type,
timeout=self.CONF.http_timeout,
insecure=conf.insecure)]
actual = client.call_args_list
self.assertEqual(expected, actual)
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