ceilometer/ceilometer/tests/energy/test_kwapi.py

147 lines
4.6 KiB
Python

# -*- coding: utf-8 -*-
#
# Author: François Rossigneux <francois.rossigneux@inria.fr>
#
# 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.
import datetime
from keystoneclient import exceptions
import mock
from oslo_context import context
from oslotest import base
from oslotest import mockpatch
import six
from ceilometer.agent import manager
from ceilometer.energy import kwapi
PROBE_DICT = {
"probes": {
"A": {
"timestamp": 1357730232.68754,
"w": 107.3,
"kwh": 0.001058255421506034
},
"B": {
"timestamp": 1357730232.048158,
"w": 15.0,
"kwh": 0.029019045026169896
},
"C": {
"timestamp": 1357730232.223375,
"w": 95.0,
"kwh": 0.17361822634312918
}
}
}
ENDPOINT = 'end://point'
class TestManager(manager.AgentManager):
@mock.patch('keystoneclient.v2_0.client', mock.MagicMock())
def __init__(self):
super(TestManager, self).__init__()
self.keystone = mock.Mock()
class _BaseTestCase(base.BaseTestCase):
@mock.patch('ceilometer.pipeline.setup_pipeline', mock.MagicMock())
def setUp(self):
super(_BaseTestCase, self).setUp()
self.context = context.get_admin_context()
self.manager = TestManager()
class TestKwapi(_BaseTestCase):
@staticmethod
def fake_get_kwapi_client(ksclient, endpoint):
raise exceptions.EndpointNotFound("fake keystone exception")
def test_endpoint_not_exist(self):
with mockpatch.PatchObject(kwapi._Base, 'get_kwapi_client',
side_effect=self.fake_get_kwapi_client):
pollster = kwapi.EnergyPollster()
samples = list(pollster.get_samples(self.manager, {},
[ENDPOINT]))
self.assertEqual(0, len(samples))
class TestEnergyPollster(_BaseTestCase):
pollster_cls = kwapi.EnergyPollster
unit = 'kwh'
def setUp(self):
super(TestEnergyPollster, self).setUp()
self.useFixture(mockpatch.PatchObject(
kwapi._Base, '_iter_probes', side_effect=self.fake_iter_probes))
@staticmethod
def fake_iter_probes(ksclient, cache, endpoint):
probes = PROBE_DICT['probes']
for key, value in six.iteritems(probes):
probe_dict = value
probe_dict['id'] = key
yield probe_dict
def test_default_discovery(self):
pollster = kwapi.EnergyPollster()
self.assertEqual('endpoint:energy', pollster.default_discovery)
def test_sample(self):
cache = {}
samples = list(self.pollster_cls().get_samples(self.manager, cache,
[ENDPOINT]))
self.assertEqual(len(PROBE_DICT['probes']), len(samples))
samples_by_name = dict((s.resource_id, s) for s in samples)
for name, probe in PROBE_DICT['probes'].items():
sample = samples_by_name[name]
expected = datetime.datetime.fromtimestamp(
probe['timestamp']
).isoformat()
self.assertEqual(expected, sample.timestamp)
self.assertEqual(probe[self.unit], sample.volume)
class TestPowerPollster(TestEnergyPollster):
pollster_cls = kwapi.PowerPollster
unit = 'w'
class TestEnergyPollsterCache(_BaseTestCase):
pollster_cls = kwapi.EnergyPollster
def test_get_samples_cached(self):
probe = {'id': 'A'}
probe.update(PROBE_DICT['probes']['A'])
cache = {
'%s-%s' % (ENDPOINT, self.pollster_cls.CACHE_KEY_PROBE): [probe],
}
self.manager.keystone = mock.Mock()
pollster = self.pollster_cls()
with mock.patch.object(pollster, '_get_probes') as do_not_call:
do_not_call.side_effect = AssertionError('should not be called')
samples = list(pollster.get_samples(self.manager, cache,
[ENDPOINT]))
self.assertEqual(1, len(samples))
class TestPowerPollsterCache(TestEnergyPollsterCache):
pollster_cls = kwapi.PowerPollster