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test_manager.py
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test_manager.py
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#
# Copyright 2013 Intel Corp.
#
# 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/central/manager.py
"""
import mock
from oslotest import base
from oslotest import mockpatch
from stevedore import extension
from ceilometer.agent import manager
from ceilometer.agent import plugin_base
from ceilometer import pipeline
from ceilometer.tests.agent import agentbase
class PollingException(Exception):
pass
class TestManager(base.BaseTestCase):
@mock.patch('ceilometer.pipeline.setup_pipeline', mock.MagicMock())
def test_load_plugins(self):
mgr = manager.AgentManager()
self.assertIsNotNone(list(mgr.extensions))
def test_load_plugins_pollster_list(self):
mgr = manager.AgentManager(pollster_list=['disk.*'])
# currently we do have 26 disk-related pollsters
self.assertEqual(26, len(list(mgr.extensions)))
def test_load_plugins_no_intersection(self):
# Let's test nothing will be polled if namespace and pollsters
# list have no intersection.
mgr = manager.AgentManager(namespaces=['compute'],
pollster_list=['storage.*'])
self.assertEqual(0, len(list(mgr.extensions)))
# Test plugin load behavior based on Node Manager pollsters.
# pollster_list is just a filter, so sensor pollsters under 'ipmi'
# namespace would be also instanced. Still need mock __init__ for it.
@mock.patch('ceilometer.ipmi.pollsters.node._Base.__init__',
mock.Mock(return_value=None))
@mock.patch('ceilometer.ipmi.pollsters.sensor.SensorPollster.__init__',
mock.Mock(return_value=None))
def test_load_normal_plugins(self):
mgr = manager.AgentManager(namespaces=['ipmi'],
pollster_list=['hardware.ipmi.node.*'])
# 8 pollsters for Node Manager
self.assertEqual(8, len(mgr.extensions))
# Skip loading pollster upon ExtensionLoadError
@mock.patch('ceilometer.ipmi.pollsters.node._Base.__init__',
mock.Mock(side_effect=plugin_base.ExtensionLoadError))
@mock.patch('ceilometer.ipmi.pollsters.sensor.SensorPollster.__init__',
mock.Mock(return_value=None))
@mock.patch('ceilometer.agent.base.LOG')
def test_load_failed_plugins(self, LOG):
mgr = manager.AgentManager(namespaces=['ipmi'],
pollster_list=['hardware.ipmi.node.*'])
# 0 pollsters
self.assertEqual(0, len(mgr.extensions))
err_msg = 'Skip loading extension for hardware.ipmi.node.%s'
pollster_names = [
'power', 'temperature', 'outlet_temperature',
'airflow', 'cups', 'cpu_util', 'mem_util', 'io_util']
calls = [mock.call(err_msg % n) for n in pollster_names]
LOG.error.assert_has_calls(calls=calls,
any_order=True)
# Skip loading pollster upon ImportError
@mock.patch('ceilometer.ipmi.pollsters.node._Base.__init__',
mock.Mock(side_effect=ImportError))
@mock.patch('ceilometer.ipmi.pollsters.sensor.SensorPollster.__init__',
mock.Mock(return_value=None))
def test_import_error_in_plugin(self):
mgr = manager.AgentManager(namespaces=['ipmi'],
pollster_list=['hardware.ipmi.node.*'])
# 0 pollsters
self.assertEqual(0, len(mgr.extensions))
# Exceptions other than ExtensionLoadError are propagated
@mock.patch('ceilometer.ipmi.pollsters.node._Base.__init__',
mock.Mock(side_effect=PollingException))
@mock.patch('ceilometer.ipmi.pollsters.sensor.SensorPollster.__init__',
mock.Mock(return_value=None))
def test_load_exceptional_plugins(self):
self.assertRaises(PollingException,
manager.AgentManager,
['ipmi'],
['hardware.ipmi.node.*'])
class TestPollsterKeystone(agentbase.TestPollster):
@plugin_base.check_keystone
def get_samples(self, manager, cache, resources):
func = super(TestPollsterKeystone, self).get_samples
return func(manager=manager,
cache=cache,
resources=resources)
class TestPollsterPollingException(agentbase.TestPollster):
polling_failures = 0
def get_samples(self, manager, cache, resources):
func = super(TestPollsterPollingException, self).get_samples
sample = func(manager=manager,
cache=cache,
resources=resources)
# Raise polling exception after 2 times
self.polling_failures += 1
if self.polling_failures > 2:
raise plugin_base.PollsterPermanentError(resources[0])
return sample
class TestRunTasks(agentbase.BaseAgentManagerTestCase):
class PollsterKeystone(TestPollsterKeystone):
samples = []
resources = []
test_data = agentbase.TestSample(
name='testkeystone',
type=agentbase.default_test_data.type,
unit=agentbase.default_test_data.unit,
volume=agentbase.default_test_data.volume,
user_id=agentbase.default_test_data.user_id,
project_id=agentbase.default_test_data.project_id,
resource_id=agentbase.default_test_data.resource_id,
timestamp=agentbase.default_test_data.timestamp,
resource_metadata=agentbase.default_test_data.resource_metadata)
class PollsterPollingException(TestPollsterPollingException):
samples = []
resources = []
test_data = agentbase.TestSample(
name='testpollingexception',
type=agentbase.default_test_data.type,
unit=agentbase.default_test_data.unit,
volume=agentbase.default_test_data.volume,
user_id=agentbase.default_test_data.user_id,
project_id=agentbase.default_test_data.project_id,
resource_id=agentbase.default_test_data.resource_id,
timestamp=agentbase.default_test_data.timestamp,
resource_metadata=agentbase.default_test_data.resource_metadata)
@staticmethod
def create_manager():
return manager.AgentManager()
def setUp(self):
self.source_resources = True
super(TestRunTasks, self).setUp()
self.useFixture(mockpatch.Patch(
'keystoneclient.v2_0.client.Client',
return_value=mock.Mock()))
def tearDown(self):
self.PollsterKeystone.samples = []
self.PollsterKeystone.resources = []
self.PollsterPollingException.samples = []
self.PollsterPollingException.resources = []
super(TestRunTasks, self).tearDown()
def create_extension_list(self):
exts = super(TestRunTasks, self).create_extension_list()
exts.extend([extension.Extension('testkeystone',
None,
None,
self.PollsterKeystone(), ),
extension.Extension('testpollingexception',
None,
None,
self.PollsterPollingException(), )])
return exts
def test_get_sample_resources(self):
polling_tasks = self.mgr.setup_polling_tasks()
self.mgr.interval_task(polling_tasks.values()[0])
self.assertTrue(self.Pollster.resources)
def test_when_keystone_fail(self):
"""Test for bug 1316532."""
self.useFixture(mockpatch.Patch(
'keystoneclient.v2_0.client.Client',
side_effect=Exception))
self.pipeline_cfg = [
{
'name': "test_keystone",
'interval': 10,
'counters': ['testkeystone'],
'resources': ['test://'] if self.source_resources else [],
'transformers': [],
'publishers': ["test"],
},
]
self.mgr.pipeline_manager = pipeline.PipelineManager(
self.pipeline_cfg,
self.transformer_manager)
polling_tasks = self.mgr.setup_polling_tasks()
self.mgr.interval_task(polling_tasks.values()[0])
self.assertFalse(self.PollsterKeystone.samples)
def test_interval_exception_isolation(self):
super(TestRunTasks, self).test_interval_exception_isolation()
self.assertEqual(1, len(self.PollsterException.samples))
self.assertEqual(1, len(self.PollsterExceptionAnother.samples))
@mock.patch('ceilometer.agent.base.LOG')
def test_polling_exception(self, LOG):
source_name = 'test_pollingexception'
self.pipeline_cfg = [
{
'name': source_name,
'interval': 10,
'counters': ['testpollingexception'],
'resources': ['test://'] if self.source_resources else [],
'transformers': [],
'publishers': ["test"],
},
]
self.mgr.pipeline_manager = pipeline.PipelineManager(
self.pipeline_cfg,
self.transformer_manager)
polling_task = self.mgr.setup_polling_tasks().values()[0]
pollster = list(polling_task.pollster_matches[source_name])[0]
# 2 samples after 4 pollings, as pollster got disabled unpon exception
for x in range(0, 4):
self.mgr.interval_task(polling_task)
pub = self.mgr.pipeline_manager.pipelines[0].publishers[0]
self.assertEqual(2, len(pub.samples))
LOG.error.assert_called_once_with((
'Prevent pollster %(name)s for '
'polling source %(source)s anymore!')
% ({'name': pollster.name, 'source': source_name}))