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# Copyright 2010 United States Government as represented by the
# Administrator of the National Aeronautics and Space Administration.
# 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
"""
import mock
from nova import context
from nova import db
from nova.scheduler import driver
from nova.scheduler import host_manager
from nova.scheduler import manager
from nova import servicegroup
from nova import test
from nova.tests.unit import fake_server_actions
class SchedulerManagerTestCase(test.NoDBTestCase):
"""Test case for scheduler manager."""
manager_cls = manager.SchedulerManager
driver_cls = driver.Scheduler
driver_cls_name = 'nova.scheduler.driver.Scheduler'
@mock.patch.object(host_manager.HostManager, '_init_instance_info')
@mock.patch.object(host_manager.HostManager, '_init_aggregates')
def setUp(self, mock_init_agg, mock_init_inst):
super(SchedulerManagerTestCase, self).setUp()
self.flags(scheduler_driver=self.driver_cls_name)
with mock.patch.object(host_manager.HostManager, '_init_aggregates'):
self.manager = self.manager_cls()
self.context = context.RequestContext('fake_user', 'fake_project')
self.topic = 'fake_topic'
self.fake_args = (1, 2, 3)
self.fake_kwargs = {'cat': 'meow', 'dog': 'woof'}
fake_server_actions.stub_out_action_events(self.stubs)
def test_1_correct_init(self):
# Correct scheduler driver
manager = self.manager
self.assertIsInstance(manager.driver, self.driver_cls)
def test_select_destination(self):
with mock.patch.object(self.manager.driver, 'select_destinations'
) as select_destinations:
self.manager.select_destinations(None, None, {})
select_destinations.assert_called_once_with(None, None, {})
def test_update_aggregates(self):
with mock.patch.object(self.manager.driver.host_manager,
'update_aggregates'
) as update_aggregates:
self.manager.update_aggregates(None, aggregates='agg')
update_aggregates.assert_called_once_with('agg')
def test_delete_aggregate(self):
with mock.patch.object(self.manager.driver.host_manager,
'delete_aggregate'
) as delete_aggregate:
self.manager.delete_aggregate(None, aggregate='agg')
delete_aggregate.assert_called_once_with('agg')
def test_update_instance_info(self):
with mock.patch.object(self.manager.driver.host_manager,
'update_instance_info') as mock_update:
self.manager.update_instance_info(mock.sentinel.context,
mock.sentinel.host_name,
mock.sentinel.instance_info)
mock_update.assert_called_once_with(mock.sentinel.context,
mock.sentinel.host_name,
mock.sentinel.instance_info)
def test_delete_instance_info(self):
with mock.patch.object(self.manager.driver.host_manager,
'delete_instance_info') as mock_delete:
self.manager.delete_instance_info(mock.sentinel.context,
mock.sentinel.host_name,
mock.sentinel.instance_uuid)
mock_delete.assert_called_once_with(mock.sentinel.context,
mock.sentinel.host_name,
mock.sentinel.instance_uuid)
def test_sync_instance_info(self):
with mock.patch.object(self.manager.driver.host_manager,
'sync_instance_info') as mock_sync:
self.manager.sync_instance_info(mock.sentinel.context,
mock.sentinel.host_name,
mock.sentinel.instance_uuids)
mock_sync.assert_called_once_with(mock.sentinel.context,
mock.sentinel.host_name,
mock.sentinel.instance_uuids)
class SchedulerTestCase(test.NoDBTestCase):
"""Test case for base scheduler driver class."""
# So we can subclass this test and re-use tests if we need.
driver_cls = driver.Scheduler
@mock.patch.object(host_manager.HostManager, '_init_instance_info')
@mock.patch.object(host_manager.HostManager, '_init_aggregates')
def setUp(self, mock_init_agg, mock_init_inst):
super(SchedulerTestCase, self).setUp()
self.driver = self.driver_cls()
self.context = context.RequestContext('fake_user', 'fake_project')
self.topic = 'fake_topic'
self.servicegroup_api = servicegroup.API()
def test_hosts_up(self):
service1 = {'host': 'host1'}
service2 = {'host': 'host2'}
services = [service1, service2]
self.mox.StubOutWithMock(db, 'service_get_all_by_topic')
self.mox.StubOutWithMock(servicegroup.API, 'service_is_up')
db.service_get_all_by_topic(self.context,
self.topic).AndReturn(services)
self.servicegroup_api.service_is_up(service1).AndReturn(False)
self.servicegroup_api.service_is_up(service2).AndReturn(True)
self.mox.ReplayAll()
result = self.driver.hosts_up(self.context, self.topic)
self.assertEqual(result, ['host2'])
class SchedulerDriverBaseTestCase(SchedulerTestCase):
"""Test cases for base scheduler driver class methods
that will fail if the driver is changed.
"""
def test_unimplemented_select_destinations(self):
self.assertRaises(NotImplementedError,
self.driver.select_destinations, self.context, {}, {})
class SchedulerInstanceGroupData(test.NoDBTestCase):
driver_cls = driver.Scheduler
def setUp(self):
super(SchedulerInstanceGroupData, self).setUp()
self.user_id = 'fake_user'
self.project_id = 'fake_project'
self.context = context.RequestContext(self.user_id, self.project_id)
self.driver = self.driver_cls()
def _get_default_values(self):
return {'name': 'fake_name',
'user_id': self.user_id,
'project_id': self.project_id}
def _create_instance_group(self, context, values, policies=None,
metadata=None, members=None):
return db.instance_group_create(context, values, policies=policies,
metadata=metadata, members=members)
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