Merge "Move fake_notifier impl under NotificationFixture"
This commit is contained in:
Zuul
Gerrit Code Review
commit
7f83cbe9e2
181
nova/tests/fixtures/notifications.py
vendored
181
nova/tests/fixtures/notifications.py
vendored
@ -10,9 +10,158 @@
|
||||
# License for the specific language governing permissions and limitations
|
||||
# under the License.
|
||||
|
||||
import fixtures
|
||||
import collections
|
||||
import functools
|
||||
import threading
|
||||
|
||||
from nova.tests.unit import fake_notifier
|
||||
import fixtures
|
||||
from oslo_log import log as logging
|
||||
import oslo_messaging
|
||||
from oslo_serialization import jsonutils
|
||||
from oslo_utils import excutils
|
||||
from oslo_utils import timeutils
|
||||
|
||||
from nova import rpc
|
||||
|
||||
LOG = logging.getLogger(__name__)
|
||||
|
||||
|
||||
class _Sub(object):
|
||||
"""Allow a subscriber to efficiently wait for an event to occur, and
|
||||
retrieve events which have occurred.
|
||||
"""
|
||||
|
||||
def __init__(self):
|
||||
self._cond = threading.Condition()
|
||||
self._notifications = []
|
||||
|
||||
def received(self, notification):
|
||||
with self._cond:
|
||||
self._notifications.append(notification)
|
||||
self._cond.notifyAll()
|
||||
|
||||
def wait_n(self, n, event, timeout):
|
||||
"""Wait until at least n notifications have been received, and return
|
||||
them. May return less than n notifications if timeout is reached.
|
||||
"""
|
||||
|
||||
with timeutils.StopWatch(timeout) as timer:
|
||||
with self._cond:
|
||||
while len(self._notifications) < n:
|
||||
if timer.expired():
|
||||
# notifications = pprint.pformat(
|
||||
# {event: sub._notifications
|
||||
# for event, sub in VERSIONED_SUBS.items()})
|
||||
# FIXME: tranform this to get access to all the
|
||||
# versioned notifications
|
||||
notifications = []
|
||||
raise AssertionError(
|
||||
"Notification %(event)s hasn't been "
|
||||
"received. Received:\n%(notifications)s" % {
|
||||
'event': event,
|
||||
'notifications': notifications,
|
||||
})
|
||||
self._cond.wait(timer.leftover())
|
||||
|
||||
# Return a copy of the notifications list
|
||||
return list(self._notifications)
|
||||
|
||||
|
||||
FakeMessage = collections.namedtuple(
|
||||
'FakeMessage',
|
||||
['publisher_id', 'priority', 'event_type', 'payload', 'context'])
|
||||
|
||||
|
||||
class FakeNotifier(object):
|
||||
|
||||
def __init__(
|
||||
self, transport, publisher_id, serializer=None, parent=None,
|
||||
):
|
||||
self.transport = transport
|
||||
self.publisher_id = publisher_id
|
||||
self._serializer = \
|
||||
serializer or oslo_messaging.serializer.NoOpSerializer()
|
||||
if parent:
|
||||
self.notifications = parent.notifications
|
||||
else:
|
||||
self.notifications = []
|
||||
|
||||
for priority in ['debug', 'info', 'warn', 'error', 'critical']:
|
||||
setattr(
|
||||
self, priority,
|
||||
functools.partial(self._notify, priority.upper()),
|
||||
)
|
||||
|
||||
def prepare(self, publisher_id=None):
|
||||
if publisher_id is None:
|
||||
publisher_id = self.publisher_id
|
||||
|
||||
return self.__class__(
|
||||
self.transport, publisher_id,
|
||||
serializer=self._serializer, parent=self,
|
||||
)
|
||||
|
||||
def _notify(self, priority, ctxt, event_type, payload):
|
||||
try:
|
||||
payload = self._serializer.serialize_entity(ctxt, payload)
|
||||
except Exception:
|
||||
with excutils.save_and_reraise_exception():
|
||||
LOG.error('Error serializing payload: %s', payload)
|
||||
|
||||
# NOTE(sileht): simulate the kombu serializer
|
||||
# this permit to raise an exception if something have not
|
||||
# been serialized correctly
|
||||
jsonutils.to_primitive(payload)
|
||||
# NOTE(melwitt): Try to serialize the context, as the rpc would.
|
||||
# An exception will be raised if something is wrong
|
||||
# with the context.
|
||||
self._serializer.serialize_context(ctxt)
|
||||
msg = FakeMessage(
|
||||
self.publisher_id, priority, event_type, payload, ctxt)
|
||||
self.notifications.append(msg)
|
||||
|
||||
def is_enabled(self):
|
||||
return True
|
||||
|
||||
def reset(self):
|
||||
self.notifications.clear()
|
||||
|
||||
|
||||
class FakeVersionedNotifier(FakeNotifier):
|
||||
def __init__(
|
||||
self, transport, publisher_id, serializer=None, parent=None,
|
||||
):
|
||||
super().__init__(transport, publisher_id, serializer)
|
||||
if parent:
|
||||
self.versioned_notifications = parent.versioned_notifications
|
||||
else:
|
||||
self.versioned_notifications = []
|
||||
|
||||
if parent:
|
||||
self.subscriptions = parent.subscriptions
|
||||
else:
|
||||
self.subscriptions = collections.defaultdict(_Sub)
|
||||
|
||||
def _notify(self, priority, ctxt, event_type, payload):
|
||||
payload = self._serializer.serialize_entity(ctxt, payload)
|
||||
notification = {
|
||||
'publisher_id': self.publisher_id,
|
||||
'priority': priority,
|
||||
'event_type': event_type,
|
||||
'payload': payload,
|
||||
}
|
||||
self.versioned_notifications.append(notification)
|
||||
self.subscriptions[event_type].received(notification)
|
||||
|
||||
def reset(self):
|
||||
self.versioned_notifications.clear()
|
||||
self.subscriptions.clear()
|
||||
|
||||
def wait_for_versioned_notifications(
|
||||
self, event_type, n_events=1, timeout=10.0,
|
||||
):
|
||||
return self.subscriptions[event_type].wait_n(
|
||||
n_events, event_type, timeout)
|
||||
|
||||
|
||||
class NotificationFixture(fixtures.Fixture):
|
||||
@ -21,23 +170,37 @@ class NotificationFixture(fixtures.Fixture):
|
||||
|
||||
def setUp(self):
|
||||
super().setUp()
|
||||
self.addCleanup(fake_notifier.reset)
|
||||
fake_notifier.stub_notifier(self.test)
|
||||
self.addCleanup(self.reset)
|
||||
|
||||
self.fake_notifier = FakeNotifier(
|
||||
rpc.LEGACY_NOTIFIER.transport,
|
||||
rpc.LEGACY_NOTIFIER.publisher_id,
|
||||
serializer=getattr(
|
||||
rpc.LEGACY_NOTIFIER, '_serializer', None))
|
||||
self.fake_versioned_notifier = FakeVersionedNotifier(
|
||||
rpc.NOTIFIER.transport,
|
||||
rpc.NOTIFIER.publisher_id,
|
||||
serializer=getattr(rpc.NOTIFIER, '_serializer', None))
|
||||
if rpc.LEGACY_NOTIFIER and rpc.NOTIFIER:
|
||||
self.test.stub_out('nova.rpc.LEGACY_NOTIFIER', self.fake_notifier)
|
||||
self.test.stub_out(
|
||||
'nova.rpc.NOTIFIER', self.fake_versioned_notifier)
|
||||
|
||||
def reset(self):
|
||||
fake_notifier.reset()
|
||||
self.fake_notifier.reset()
|
||||
self.fake_versioned_notifier.reset()
|
||||
|
||||
def wait_for_versioned_notifications(
|
||||
self, event_type, n_events=1, timeout=10.0,
|
||||
):
|
||||
return fake_notifier.VERSIONED_SUBS[event_type].wait_n(
|
||||
n_events, event_type, timeout,
|
||||
return self.fake_versioned_notifier.wait_for_versioned_notifications(
|
||||
event_type, n_events, timeout,
|
||||
)
|
||||
|
||||
@property
|
||||
def versioned_notifications(self):
|
||||
return fake_notifier.VERSIONED_NOTIFICATIONS
|
||||
return self.fake_versioned_notifier.versioned_notifications
|
||||
|
||||
@property
|
||||
def notifications(self):
|
||||
return fake_notifier.NOTIFICATIONS
|
||||
return self.fake_notifier.notifications
|
||||
|
||||
@ -1,153 +0,0 @@
|
||||
# Copyright 2013 Red Hat, Inc.
|
||||
#
|
||||
# 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 collections
|
||||
import functools
|
||||
import pprint
|
||||
import threading
|
||||
|
||||
from oslo_log import log as logging
|
||||
import oslo_messaging as messaging
|
||||
from oslo_serialization import jsonutils
|
||||
from oslo_utils import excutils
|
||||
from oslo_utils import timeutils
|
||||
|
||||
from nova import rpc
|
||||
|
||||
LOG = logging.getLogger(__name__)
|
||||
|
||||
|
||||
class _Sub(object):
|
||||
"""Allow a subscriber to efficiently wait for an event to occur, and
|
||||
retrieve events which have occured.
|
||||
"""
|
||||
|
||||
def __init__(self):
|
||||
self._cond = threading.Condition()
|
||||
self._notifications = []
|
||||
|
||||
def received(self, notification):
|
||||
with self._cond:
|
||||
self._notifications.append(notification)
|
||||
self._cond.notifyAll()
|
||||
|
||||
def wait_n(self, n, event, timeout):
|
||||
"""Wait until at least n notifications have been received, and return
|
||||
them. May return less than n notifications if timeout is reached.
|
||||
"""
|
||||
|
||||
with timeutils.StopWatch(timeout) as timer:
|
||||
with self._cond:
|
||||
while len(self._notifications) < n:
|
||||
if timer.expired():
|
||||
notifications = pprint.pformat(
|
||||
{event: sub._notifications
|
||||
for event, sub in VERSIONED_SUBS.items()})
|
||||
raise AssertionError(
|
||||
"Notification %(event)s hasn't been "
|
||||
"received. Received:\n%(notifications)s" % {
|
||||
'event': event,
|
||||
'notifications': notifications,
|
||||
})
|
||||
self._cond.wait(timer.leftover())
|
||||
|
||||
# Return a copy of the notifications list
|
||||
return list(self._notifications)
|
||||
|
||||
|
||||
VERSIONED_SUBS = collections.defaultdict(_Sub)
|
||||
VERSIONED_NOTIFICATIONS = []
|
||||
NOTIFICATIONS = []
|
||||
|
||||
|
||||
def reset():
|
||||
del NOTIFICATIONS[:]
|
||||
del VERSIONED_NOTIFICATIONS[:]
|
||||
VERSIONED_SUBS.clear()
|
||||
|
||||
|
||||
FakeMessage = collections.namedtuple('Message',
|
||||
['publisher_id', 'priority',
|
||||
'event_type', 'payload', 'context'])
|
||||
|
||||
|
||||
class FakeNotifier(object):
|
||||
|
||||
def __init__(self, transport, publisher_id, serializer=None):
|
||||
self.transport = transport
|
||||
self.publisher_id = publisher_id
|
||||
self._serializer = serializer or messaging.serializer.NoOpSerializer()
|
||||
|
||||
for priority in ['debug', 'info', 'warn', 'error', 'critical']:
|
||||
setattr(self, priority,
|
||||
functools.partial(self._notify, priority.upper()))
|
||||
|
||||
def prepare(self, publisher_id=None):
|
||||
if publisher_id is None:
|
||||
publisher_id = self.publisher_id
|
||||
return self.__class__(self.transport, publisher_id,
|
||||
serializer=self._serializer)
|
||||
|
||||
def _notify(self, priority, ctxt, event_type, payload):
|
||||
try:
|
||||
payload = self._serializer.serialize_entity(ctxt, payload)
|
||||
except Exception:
|
||||
with excutils.save_and_reraise_exception():
|
||||
LOG.error('Error serializing payload: %s', payload)
|
||||
# NOTE(sileht): simulate the kombu serializer
|
||||
# this permit to raise an exception if something have not
|
||||
# been serialized correctly
|
||||
jsonutils.to_primitive(payload)
|
||||
# NOTE(melwitt): Try to serialize the context, as the rpc would.
|
||||
# An exception will be raised if something is wrong
|
||||
# with the context.
|
||||
self._serializer.serialize_context(ctxt)
|
||||
msg = FakeMessage(self.publisher_id, priority, event_type,
|
||||
payload, ctxt)
|
||||
NOTIFICATIONS.append(msg)
|
||||
|
||||
def is_enabled(self):
|
||||
return True
|
||||
|
||||
|
||||
class FakeVersionedNotifier(FakeNotifier):
|
||||
def _notify(self, priority, ctxt, event_type, payload):
|
||||
payload = self._serializer.serialize_entity(ctxt, payload)
|
||||
notification = {'publisher_id': self.publisher_id,
|
||||
'priority': priority,
|
||||
'event_type': event_type,
|
||||
'payload': payload}
|
||||
VERSIONED_NOTIFICATIONS.append(notification)
|
||||
VERSIONED_SUBS[event_type].received(notification)
|
||||
|
||||
|
||||
def stub_notifier(test):
|
||||
test.stub_out('oslo_messaging.Notifier', FakeNotifier)
|
||||
if rpc.LEGACY_NOTIFIER and rpc.NOTIFIER:
|
||||
test.stub_out('nova.rpc.LEGACY_NOTIFIER',
|
||||
FakeNotifier(rpc.LEGACY_NOTIFIER.transport,
|
||||
rpc.LEGACY_NOTIFIER.publisher_id,
|
||||
serializer=getattr(rpc.LEGACY_NOTIFIER,
|
||||
'_serializer',
|
||||
None)))
|
||||
test.stub_out('nova.rpc.NOTIFIER',
|
||||
FakeVersionedNotifier(rpc.NOTIFIER.transport,
|
||||
rpc.NOTIFIER.publisher_id,
|
||||
serializer=getattr(rpc.NOTIFIER,
|
||||
'_serializer',
|
||||
None)))
|
||||
|
||||
|
||||
def wait_for_versioned_notifications(event_type, n_events=1, timeout=10.0):
|
||||
return VERSIONED_SUBS[event_type].wait_n(n_events, event_type, timeout)
|
||||
Loading…
Reference in New Issue
Block a user