openstack/aodh
Code Issues Proposed changes
28aeae4e96
aodh/nova_tests/test_notifier.py
Doug Hellmann a10773e413 Add pollster data cache 
Add a dictionary as a data cache for the pollsters,
creating it outside of the loop where they are
invoked and passing it to them. Future changesets will
include changes to the pollsters to put data in the
cache.

blueprint one-meter-per-plugin

Change-Id: Ie65526dfe65a8880ad8683b62fae62f8e7f9e69b
Signed-off-by: Doug Hellmann <doug.hellmann@dreamhost.com>
2013-07-02 18:54:00 -04:00

230 lines
9.0 KiB
Python
Raw Blame History

# -*- encoding: utf-8 -*-
#
# Copyright © 2012 New Dream Network, LLC (DreamHost)
#
# Author: Julien Danjou <julien@danjou.info>
# Doug Hellmann <doug.hellmann@dreamhost.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.compute.nova_notifier
"""
import contextlib
import datetime
import mock
from stevedore import extension
from stevedore.tests import manager as test_manager
## NOTE(dhellmann): These imports are not in the generally approved
## alphabetical order, but they are in the order that actually
## works. Please don't change them.
from nova.tests import fake_network
from nova.compute import vm_states
try:
from nova.compute import flavors
except ImportError:
from nova.compute import instance_types as flavors
from nova import config
from nova import context
from nova import db
from nova.openstack.common import importutils
from nova.openstack.common import log as logging
from nova.openstack.common.notifier import api as notifier_api
# This option is used in the nova_notifier module, so make
# sure it is defined.
config.cfg.CONF.import_opt('compute_manager', 'nova.service')
# HACK(dhellmann): Import this before any other ceilometer code
# because the notifier module messes with the import path to force
# nova's version of oslo to be used instead of ceilometer's.
from ceilometer.compute import nova_notifier
from ceilometer import counter
from ceilometer.tests import base
LOG = logging.getLogger(__name__)
nova_CONF = config.cfg.CONF
class TestNovaNotifier(base.TestCase):
class Pollster(object):
instances = []
test_data = counter.Counter(
name='test',
type=counter.TYPE_CUMULATIVE,
unit='units-go-here',
volume=1,
user_id='test',
project_id='test',
resource_id='test_run_tasks',
timestamp=datetime.datetime.utcnow().isoformat(),
resource_metadata={'name': 'Pollster',
},
)
def get_counters(self, manager, cache, instance):
self.instances.append((manager, instance))
return [self.test_data]
def get_counter_names(self):
return ['test']
@mock.patch('ceilometer.pipeline.setup_pipeline', mock.MagicMock())
def setUp(self):
super(TestNovaNotifier, self).setUp()
nova_CONF.compute_driver = 'nova.virt.fake.FakeDriver'
nova_CONF.notification_driver = [nova_notifier.__name__]
nova_CONF.rpc_backend = 'nova.openstack.common.rpc.impl_fake'
nova_CONF.vnc_enabled = False
nova_CONF.spice.enabled = False
self.compute = importutils.import_object(nova_CONF.compute_manager)
self.context = context.get_admin_context()
fake_network.set_stub_network_methods(self.stubs)
self.instance = {"name": "instance-1",
'OS-EXT-SRV-ATTR:instance_name': 'instance-1',
"id": 1,
"image_ref": "FAKE",
"user_id": "FAKE",
"project_id": "FAKE",
"display_name": "FAKE NAME",
"hostname": "abcdef",
"reservation_id": "FAKE RID",
"instance_type_id": 1,
"architecture": "x86",
"memory_mb": "1024",
"root_gb": "20",
"ephemeral_gb": "0",
"vcpus": 1,
'node': "fakenode",
"host": "fakehost",
"availability_zone":
"1e3ce043029547f1a61c1996d1a531a4",
"created_at": '2012-05-08 20:23:41',
"os_type": "linux",
"kernel_id": "kernelid",
"ramdisk_id": "ramdiskid",
"vm_state": vm_states.ACTIVE,
"access_ip_v4": "someip",
"access_ip_v6": "someip",
"metadata": {},
"uuid": "144e08f4-00cb-11e2-888e-5453ed1bbb5f",
"system_metadata": {}}
self.stubs.Set(db, 'instance_info_cache_delete', self.do_nothing)
self.stubs.Set(db, 'instance_destroy', self.do_nothing)
self.stubs.Set(db, 'instance_system_metadata_get',
self.fake_db_instance_system_metadata_get)
self.stubs.Set(db, 'block_device_mapping_get_all_by_instance',
lambda context, instance: {})
self.stubs.Set(db, 'instance_update_and_get_original',
lambda context, uuid, kwargs: (self.instance,
self.instance))
self.stubs.Set(flavors, 'extract_flavor',
lambda ref: {})
# Set up to capture the notification messages generated by the
# plugin and to invoke our notifier plugin.
self.notifications = []
notifier_api._reset_drivers()
notifier_api.add_driver(self)
notifier_api.add_driver(nova_notifier)
ext_mgr = test_manager.TestExtensionManager([
extension.Extension('test',
None,
None,
self.Pollster(),
),
])
self.ext_mgr = ext_mgr
self.gatherer = nova_notifier.DeletedInstanceStatsGatherer(ext_mgr)
nova_notifier.initialize_gatherer(self.gatherer)
# Terminate the instance to trigger the notification.
with contextlib.nested(
# Under Grizzly, Nova has moved to no-db access on the
# compute node. The compute manager uses RPC to talk to
# the conductor. We need to disable communication between
# the nova manager and the remote system since we can't
# expect the message bus to be available, or the remote
# controller to be there if the message bus is online.
mock.patch.object(self.compute, 'conductor_api'),
# The code that looks up the instance uses a global
# reference to the API, so we also have to patch that to
# return our fake data.
mock.patch.object(nova_notifier.instance_info_source,
'instance_get_by_uuid',
self.fake_instance_ref_get),
):
self.compute.terminate_instance(self.context,
instance=self.instance)
def tearDown(self):
notifier_api._reset_drivers()
self.Pollster.instances = []
super(TestNovaNotifier, self).tearDown()
nova_notifier._gatherer = None
def fake_instance_ref_get(self, context, id_):
if self.instance['uuid'] == id_:
return self.instance
return {}
@staticmethod
def do_nothing(*args, **kwargs):
pass
@staticmethod
def fake_db_instance_system_metadata_get(context, uuid):
return dict(meta_a=123, meta_b="foobar")
def notify(self, context, message):
self.notifications.append(message)
def test_pollster_called(self):
# The notifier plugin sends another notification for the same
# instance, so we expect to have 2 entries in the list.
self.assertEqual(len(self.Pollster.instances), 2)
def test_correct_instance(self):
for i, (gatherer, inst) in enumerate(self.Pollster.instances):
self.assertEqual((i, inst.uuid), (i, self.instance['uuid']))
def test_correct_gatherer(self):
for i, (gatherer, inst) in enumerate(self.Pollster.instances):
self.assertEqual((i, gatherer), (i, self.gatherer))
def test_samples(self):
# Ensure that the outgoing notification looks like what we expect
for message in self.notifications:
event = message['event_type']
if event != 'compute.instance.delete.samples':
continue
payload = message['payload']
samples = payload['samples']
self.assertEqual(len(samples), 1)
s = payload['samples'][0]
self.assertEqual(s, {'name': 'test',
'type': counter.TYPE_CUMULATIVE,
'unit': 'units-go-here',
'volume': 1,
})
break
else:
assert False, 'Did not find expected event'
View Git Blame Copy Permalink