Files
python-ganttclient/nova/tests/scheduler/test_multi_scheduler.py
Andrew Clay Shafer 8d1b4cee5b Reset instance to ACTIVE when no hosts found
bug 928521

modified nova/scheduler/manager.py to reset vm_state to ACTIVE and set
task_state to None when prep_resize raises a NoHostsFound

refactored run_instance and prep_resize so they don't go through
_schedule and now must be implemented in driver

Changed behavior to set vm_state to error on any other exception in
prep_resize.

Change behavior to change instance vm_state to ERROR on exceptions

Added tests that the vm_state gets updated

Added tests that schedule_prep_resize and schedule_run_instance
have no implementation in the Driver base class

Had to adjust methods and tests for Multi scheduler to reflect the
new Scheduler contract

Change-Id: Ibcac7ef0df3456793a2132beb7a711849510da80
2012-03-06 16:24:18 -05:00

106 lines
3.5 KiB
Python

# vim: tabstop=4 shiftwidth=4 softtabstop=4
# Copyright 2010 United States Government as represented by the
# Administrator of the National Aeronautics and Space Administration.
# Copyright 2011 OpenStack LLC
# 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 Multi Scheduler
"""
from nova.scheduler import driver
from nova.scheduler import multi
from nova.tests.scheduler import test_scheduler
class FakeComputeScheduler(driver.Scheduler):
is_fake_compute = True
def schedule_theoretical(self, *args, **kwargs):
pass
def schedule(self, *args, **kwargs):
pass
class FakeVolumeScheduler(driver.Scheduler):
is_fake_volume = True
def schedule_create_volume(self, *args, **kwargs):
pass
def schedule_create_volumes(self, *args, **kwargs):
pass
def schedule(self, *args, **kwargs):
pass
class MultiDriverTestCase(test_scheduler.SchedulerTestCase):
"""Test case for multi driver"""
driver_cls = multi.MultiScheduler
def setUp(self):
super(MultiDriverTestCase, self).setUp()
base_name = 'nova.tests.scheduler.test_multi_scheduler.%s'
compute_cls_name = base_name % 'FakeComputeScheduler'
volume_cls_name = base_name % 'FakeVolumeScheduler'
self.flags(compute_scheduler_driver=compute_cls_name,
volume_scheduler_driver=volume_cls_name)
self._manager = multi.MultiScheduler()
def test_drivers_inited(self):
mgr = self._manager
self.assertEqual(len(mgr.drivers), 2)
self.assertTrue(mgr.drivers['compute'].is_fake_compute)
self.assertTrue(mgr.drivers['volume'].is_fake_volume)
def test_proxy_calls(self):
mgr = self._manager
compute_driver = mgr.drivers['compute']
volume_driver = mgr.drivers['volume']
#no compute methods are proxied at this time
test_methods = {compute_driver: [],
volume_driver: ['create_volume', 'create_volumes']}
for driver, methods in test_methods.iteritems():
for method in methods:
mgr_func = getattr(mgr, 'schedule_' + method)
driver_func = getattr(driver, 'schedule_' + method)
self.assertEqual(mgr_func, driver_func)
def test_schedule_fallback_proxy(self):
mgr = self._manager
self.mox.StubOutWithMock(mgr.drivers['compute'], 'schedule')
self.mox.StubOutWithMock(mgr.drivers['volume'], 'schedule')
ctxt = 'fake_context'
method = 'fake_method'
fake_args = (1, 2, 3)
fake_kwargs = {'fake_kwarg1': 'fake_value1',
'fake_kwarg2': 'fake_value2'}
mgr.drivers['compute'].schedule(ctxt, 'compute', method,
*fake_args, **fake_kwargs)
mgr.drivers['volume'].schedule(ctxt, 'volume', method,
*fake_args, **fake_kwargs)
self.mox.ReplayAll()
mgr.schedule(ctxt, 'compute', method, *fake_args, **fake_kwargs)
mgr.schedule(ctxt, 'volume', method, *fake_args, **fake_kwargs)