42f02ab3c4
This change creates a base class for evaluator. The alarm service load all evaluators. A evaluator needs to implement abstract method of this base class. The alarm service now check in alarm.type use the right extension to evaluate the alarm. The previous threshold evaluator code has been moved into the threshold extension. Related to blueprint alarming-logical-combination Change-Id: If6057b7db1e894333e6e9f1edb41ab75bc2c4444
96 lines
3.4 KiB
Python
96 lines
3.4 KiB
Python
# -*- encoding: utf-8 -*-
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#
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# Copyright © 2013 Red Hat, Inc
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#
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# Author: Eoghan Glynn <eglynn@redhat.com>
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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 ceilometer/alarm/service.py
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"""
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import mock
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from stevedore import extension
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from stevedore.tests import manager as extension_tests
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from ceilometer.alarm import service
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from ceilometer.tests import base
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class TestSingletonAlarmService(base.TestCase):
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def setUp(self):
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super(TestSingletonAlarmService, self).setUp()
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self.threshold_eval = mock.Mock()
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self.evaluators = extension_tests.TestExtensionManager(
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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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self.api_client = mock.MagicMock()
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self.singleton = service.SingletonAlarmService()
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self.singleton.tg = mock.Mock()
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self.singleton.evaluators = self.evaluators
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self.singleton.supported_evaluators = ['threshold']
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def test_start(self):
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with mock.patch('ceilometerclient.client.get_client',
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return_value=self.api_client):
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self.singleton.start()
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expected = [
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mock.call(60,
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self.singleton._evaluate_all_alarms,
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0),
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mock.call(604800, mock.ANY),
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]
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actual = self.singleton.tg.add_timer.call_args_list
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self.assertEqual(actual, expected)
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def test_evaluation_cycle(self):
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alarm = mock.Mock(enabled=True,
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type='threshold')
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self.api_client.alarms.list.return_value = [alarm]
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with mock.patch('ceilometerclient.client.get_client',
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return_value=self.api_client):
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self.singleton._evaluate_all_alarms()
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self.threshold_eval.evaluate.assert_called_once_with(alarm)
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def test_disabled_is_skipped(self):
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alarms = [
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mock.Mock(enabled=False,
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type='threshold'),
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mock.Mock(enabled=True,
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type='threshold'),
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]
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self.api_client.alarms.list.return_value = alarms
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with mock.patch('ceilometerclient.client.get_client',
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return_value=self.api_client):
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self.singleton.start()
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self.singleton._evaluate_all_alarms()
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self.threshold_eval.evaluate.assert_called_once_with(alarms[1])
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def test_unknown_extention_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.api_client.alarms.list.return_value = alarms
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with mock.patch('ceilometerclient.client.get_client',
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return_value=self.api_client):
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self.singleton.start()
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self.singleton._evaluate_all_alarms()
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self.threshold_eval.evaluate.assert_called_once_with(alarms[1])
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