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# Copyright (c) 2013 Rackspace Hosting
# All Rights Reserved.
#
# 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 Scheduler Utils
"""
import mox
from nova.compute import utils as compute_utils
from nova.conductor import api as conductor_api
from nova import db
from nova import notifications
from nova.openstack.common.notifier import api as notifier
from nova.scheduler import utils as scheduler_utils
from nova import test
class SchedulerUtilsTestCase(test.NoDBTestCase):
"""Test case for scheduler utils methods."""
def setUp(self):
super(SchedulerUtilsTestCase, self).setUp()
self.context = 'fake-context'
def _test_set_vm_state_and_notify(self, request_spec,
expected_uuids):
updates = dict(vm_state='fake-vm-state')
service = 'fake-service'
method = 'fake-method'
exc_info = 'exc_info'
publisher_id = 'fake-publisher-id'
self.mox.StubOutWithMock(compute_utils,
'add_instance_fault_from_exc')
self.mox.StubOutWithMock(notifications, 'send_update')
self.mox.StubOutWithMock(db, 'instance_update_and_get_original')
self.mox.StubOutWithMock(notifier, 'publisher_id')
old_ref = 'old_ref'
new_ref = 'new_ref'
for uuid in expected_uuids:
db.instance_update_and_get_original(
self.context, uuid, updates).AndReturn((old_ref, new_ref))
notifications.send_update(self.context, old_ref, new_ref,
service=service)
compute_utils.add_instance_fault_from_exc(
self.context,
mox.IsA(conductor_api.LocalAPI),
new_ref, exc_info, mox.IsA(tuple))
payload = dict(request_spec=request_spec,
instance_properties=request_spec.get(
'instance_properties'),
instance_id=uuid,
state='fake-vm-state',
method=method,
reason=exc_info)
event_type = '%s.%s' % (service, method)
notifier.publisher_id(service).AndReturn(publisher_id)
notifier.notify(self.context, publisher_id,
event_type, notifier.ERROR, payload)
self.mox.ReplayAll()
scheduler_utils.set_vm_state_and_notify(self.context,
service,
method,
updates,
exc_info,
request_spec,
db)
def test_set_vm_state_and_notify_rs_uuids(self):
expected_uuids = ['1', '2', '3']
request_spec = dict(instance_uuids=expected_uuids)
self._test_set_vm_state_and_notify(request_spec, expected_uuids)
def test_set_vm_state_and_notify_uuid_from_instance_props(self):
expected_uuids = ['fake-uuid']
request_spec = dict(instance_properties=dict(uuid='fake-uuid'))
self._test_set_vm_state_and_notify(request_spec, expected_uuids)
def _test_populate_filter_props(self, host_state_obj=True,
with_retry=True,
force_hosts=[],
force_nodes=[]):
if with_retry:
if not force_hosts and not force_nodes:
filter_properties = dict(retry=dict(hosts=[]))
else:
filter_properties = dict(force_hosts=force_hosts,
force_nodes=force_nodes)
else:
filter_properties = dict()
if host_state_obj:
class host_state(object):
host = 'fake-host'
nodename = 'fake-node'
limits = 'fake-limits'
else:
host_state = dict(host='fake-host',
nodename='fake-node',
limits='fake-limits')
scheduler_utils.populate_filter_properties(filter_properties,
host_state)
if with_retry and not force_hosts and not force_nodes:
# So we can check for 2 hosts
scheduler_utils.populate_filter_properties(filter_properties,
host_state)
self.assertEqual('fake-limits', filter_properties['limits'])
if with_retry and not force_hosts and not force_nodes:
self.assertEqual([['fake-host', 'fake-node'],
['fake-host', 'fake-node']],
filter_properties['retry']['hosts'])
else:
self.assertNotIn('retry', filter_properties)
def test_populate_filter_props(self):
self._test_populate_filter_props()
def test_populate_filter_props_host_dict(self):
self._test_populate_filter_props(host_state_obj=False)
def test_populate_filter_props_no_retry(self):
self._test_populate_filter_props(with_retry=False)
def test_populate_filter_props_force_hosts_no_retry(self):
self._test_populate_filter_props(force_hosts=['force-host'])
def test_populate_filter_props_force_nodes_no_retry(self):
self._test_populate_filter_props(force_nodes=['force-node'])
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