nova/nova/tests/compute/test_compute_cells.py

236 lines
8.3 KiB
Python

# vim: tabstop=4 shiftwidth=4 softtabstop=4
# Copyright (c) 2012 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 Compute w/ Cells
"""
import functools
from oslo.config import cfg
from nova.compute import api as compute_api
from nova.compute import cells_api as compute_cells_api
from nova import db
from nova import exception
from nova.openstack.common import jsonutils
from nova import quota
from nova.tests.compute import test_compute
ORIG_COMPUTE_API = None
cfg.CONF.import_opt('enable', 'nova.cells.opts', group='cells')
def stub_call_to_cells(context, instance, method, *args, **kwargs):
fn = getattr(ORIG_COMPUTE_API, method)
original_instance = kwargs.pop('original_instance', None)
if original_instance:
instance = original_instance
# Restore this in 'child cell DB'
db.instance_update(context, instance['uuid'],
dict(vm_state=instance['vm_state'],
task_state=instance['task_state']))
# Use NoopQuotaDriver in child cells.
saved_quotas = quota.QUOTAS
quota.QUOTAS = quota.QuotaEngine(
quota_driver_class=quota.NoopQuotaDriver())
compute_api.QUOTAS = quota.QUOTAS
try:
return fn(context, instance, *args, **kwargs)
finally:
quota.QUOTAS = saved_quotas
compute_api.QUOTAS = saved_quotas
def stub_cast_to_cells(context, instance, method, *args, **kwargs):
fn = getattr(ORIG_COMPUTE_API, method)
original_instance = kwargs.pop('original_instance', None)
if original_instance:
instance = original_instance
# Restore this in 'child cell DB'
db.instance_update(context, instance['uuid'],
dict(vm_state=instance['vm_state'],
task_state=instance['task_state']))
# Use NoopQuotaDriver in child cells.
saved_quotas = quota.QUOTAS
quota.QUOTAS = quota.QuotaEngine(
quota_driver_class=quota.NoopQuotaDriver())
compute_api.QUOTAS = quota.QUOTAS
try:
fn(context, instance, *args, **kwargs)
finally:
quota.QUOTAS = saved_quotas
compute_api.QUOTAS = saved_quotas
def deploy_stubs(stubs, api, original_instance=None):
call = stub_call_to_cells
cast = stub_cast_to_cells
if original_instance:
kwargs = dict(original_instance=original_instance)
call = functools.partial(stub_call_to_cells, **kwargs)
cast = functools.partial(stub_cast_to_cells, **kwargs)
stubs.Set(api, '_call_to_cells', call)
stubs.Set(api, '_cast_to_cells', cast)
def wrap_create_instance(func):
@functools.wraps(func)
def wrapper(self, *args, **kwargs):
instance = self._create_fake_instance()
def fake(*args, **kwargs):
return instance
self.stubs.Set(self, '_create_fake_instance', fake)
original_instance = jsonutils.to_primitive(instance)
deploy_stubs(self.stubs, self.compute_api,
original_instance=original_instance)
return func(self, *args, **kwargs)
return wrapper
class CellsComputeAPITestCase(test_compute.ComputeAPITestCase):
def setUp(self):
super(CellsComputeAPITestCase, self).setUp()
global ORIG_COMPUTE_API
ORIG_COMPUTE_API = self.compute_api
self.flags(enable=True, group='cells')
def _fake_cell_read_only(*args, **kwargs):
return False
def _fake_validate_cell(*args, **kwargs):
return
def _nop_update(context, instance, **kwargs):
return instance
self.compute_api = compute_cells_api.ComputeCellsAPI()
self.stubs.Set(self.compute_api, '_cell_read_only',
_fake_cell_read_only)
self.stubs.Set(self.compute_api, '_validate_cell',
_fake_validate_cell)
# NOTE(belliott) Don't update the instance state
# for the tests at the API layer. Let it happen after
# the stub cast to cells so that expected_task_states
# match.
self.stubs.Set(self.compute_api, 'update', _nop_update)
deploy_stubs(self.stubs, self.compute_api)
def tearDown(self):
global ORIG_COMPUTE_API
self.compute_api = ORIG_COMPUTE_API
super(CellsComputeAPITestCase, self).tearDown()
def test_instance_metadata(self):
self.skipTest("Test is incompatible with cells.")
def test_live_migrate(self):
self.skipTest("Test is incompatible with cells.")
def test_get_backdoor_port(self):
self.skipTest("Test is incompatible with cells.")
def test_snapshot_given_image_uuid(self):
self.skipTest("Test doesn't apply to API cell.")
@wrap_create_instance
def test_snapshot(self):
return super(CellsComputeAPITestCase, self).test_snapshot()
@wrap_create_instance
def test_snapshot_image_metadata_inheritance(self):
return super(CellsComputeAPITestCase,
self).test_snapshot_image_metadata_inheritance()
@wrap_create_instance
def test_snapshot_minram_mindisk(self):
return super(CellsComputeAPITestCase,
self).test_snapshot_minram_mindisk()
@wrap_create_instance
def test_snapshot_minram_mindisk_VHD(self):
return super(CellsComputeAPITestCase,
self).test_snapshot_minram_mindisk_VHD()
@wrap_create_instance
def test_snapshot_minram_mindisk_img_missing_minram(self):
return super(CellsComputeAPITestCase,
self).test_snapshot_minram_mindisk_img_missing_minram()
@wrap_create_instance
def test_snapshot_minram_mindisk_no_image(self):
return super(CellsComputeAPITestCase,
self).test_snapshot_minram_mindisk_no_image()
@wrap_create_instance
def test_backup(self):
return super(CellsComputeAPITestCase, self).test_backup()
def test_evacuate(self):
self.skipTest("Test is incompatible with cells.")
def test_delete_instance_no_cell(self):
cells_rpcapi = self.compute_api.cells_rpcapi
self.mox.StubOutWithMock(cells_rpcapi,
'instance_delete_everywhere')
self.mox.StubOutWithMock(self.compute_api,
'_cast_to_cells')
inst = self._create_fake_instance()
exc = exception.InstanceUnknownCell(instance_uuid=inst['uuid'])
self.compute_api._cast_to_cells(self.context, inst,
'delete').AndRaise(exc)
cells_rpcapi.instance_delete_everywhere(self.context,
inst, 'hard')
self.mox.ReplayAll()
self.compute_api.delete(self.context, inst)
def test_soft_delete_instance_no_cell(self):
cells_rpcapi = self.compute_api.cells_rpcapi
self.mox.StubOutWithMock(cells_rpcapi,
'instance_delete_everywhere')
self.mox.StubOutWithMock(self.compute_api,
'_cast_to_cells')
inst = self._create_fake_instance()
exc = exception.InstanceUnknownCell(instance_uuid=inst['uuid'])
self.compute_api._cast_to_cells(self.context, inst,
'soft_delete').AndRaise(exc)
cells_rpcapi.instance_delete_everywhere(self.context,
inst, 'soft')
self.mox.ReplayAll()
self.compute_api.soft_delete(self.context, inst)
class CellsComputePolicyTestCase(test_compute.ComputePolicyTestCase):
def setUp(self):
super(CellsComputePolicyTestCase, self).setUp()
global ORIG_COMPUTE_API
ORIG_COMPUTE_API = self.compute_api
self.compute_api = compute_cells_api.ComputeCellsAPI()
deploy_stubs(self.stubs, self.compute_api)
def tearDown(self):
global ORIG_COMPUTE_API
self.compute_api = ORIG_COMPUTE_API
super(CellsComputePolicyTestCase, self).tearDown()