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OpenStack Study: test_coraid.py

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# Copyright 2012 OpenStack Foundation

# 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.

import math

import mox

from oslo.config import cfg

from cinder.brick.initiator import connector

from cinder import exception

from cinder.image import image_utils

from cinder.openstack.common import jsonutils

from cinder.openstack.common import log as logging

from cinder import test

from cinder import units

from cinder import utils

from cinder.volume import configuration as conf

from cinder.volume.drivers import coraid

from cinder.volume import volume_types

CONF = cfg.CONF

LOG = logging.getLogger(__name__)

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def to_coraid_kb(gb):

    return math.ceil(float(gb) * units.GiB / 1000)

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def coraid_volume_size(gb):

    return '{0}K'.format(to_coraid_kb(gb))

fake_esm_ipaddress = "192.168.0.1"

fake_esm_username = "darmok"

fake_esm_group = "tanagra"

fake_esm_group_id = 1

fake_esm_password = "12345678"

fake_coraid_repository_key = 'repository_key'

fake_volume_name = "volume-12345678-1234-1234-1234-1234567890ab"

fake_clone_name = "volume-ffffffff-1234-1234-1234-1234567890ab"

fake_volume_size = 10

fake_repository_name = "A-B:C:D"

fake_pool_name = "FakePool"

fake_aoetarget = 4081

fake_shelf = 16

fake_lun = 241

fake_str_aoetarget = str(fake_aoetarget)

fake_lun_addr = {"shelf": fake_shelf, "lun": fake_lun}

fake_volume_type = {'id': 1}

fake_volume = {"id": fake_volume_name,

               "name": fake_volume_name,

               "size": fake_volume_size,

               "volume_type": fake_volume_type}

fake_clone_volume = {"name": fake_clone_name,

                     "size": fake_volume_size,

                     "volume_type": fake_volume_type}

fake_big_clone_volume = {"name": fake_clone_name,

                         "size": fake_volume_size + 1,

                         "volume_type": fake_volume_type}

fake_volume_info = {"pool": fake_pool_name,

                    "repo": fake_repository_name,

                    "vsxidx": fake_aoetarget,

                    "index": fake_lun,

                    "shelf": fake_shelf}

fake_lun_info = {"shelf": fake_shelf, "lun": fake_lun}

fake_snapshot_name = "snapshot-12345678-8888-8888-1234-1234567890ab"

fake_snapshot_id = "12345678-8888-8888-1234-1234567890ab"

fake_volume_id = "12345678-1234-1234-1234-1234567890ab"

fake_snapshot = {"id": fake_snapshot_id,

                 "name": fake_snapshot_name,

                 "volume_id": fake_volume_id,

                 "volume_name": fake_volume_name,

                 "volume_size": int(fake_volume_size) - 1,

                 "volume": fake_volume}

fake_configure_data = [{"addr": "cms", "data": "FAKE"}]

fake_esm_fetch = [[

    {"command": "super_fake_command"},

    {"reply": [

        {"lv":

            {"containingPool": fake_pool_name,

             "lunIndex": fake_aoetarget,

             "name": fake_volume_name,

             "lvStatus":

                {"exportedLun":

                    {"lun": fake_lun,

                     "shelf": fake_shelf}}

             },

         "repoName": fake_repository_name}]}]]

fake_esm_fetch_no_volume = [[

    {"command": "super_fake_command"},

    {"reply": []}]]

fake_esm_success = {"category": "provider",

                    "tracking": False,

                    "configState": "completedSuccessfully",

                    "heldPending": False,

                    "metaCROp": "noAction",

                    "message": None}

fake_group_fullpath = "admin group:%s" % (fake_esm_group)

fake_group_id = 4

fake_login_reply = {"values": [

                    {"fullPath": fake_group_fullpath,

                     "groupId": fake_group_id}],

                    "message": "",

                    "state": "adminSucceed",

                    "metaCROp": "noAction"}

fake_group_fail_fullpath = "fail group:%s" % (fake_esm_group)

fake_group_fail_id = 5

fake_login_reply_group_fail = {"values": [

                               {"fullPath": fake_group_fail_fullpath,

                                "groupId": fake_group_fail_id}],

                               "message": "",

                               "state": "adminSucceed",

                               "metaCROp": "noAction"}

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def compare(a, b):

    if type(a) != type(b):

        return False

    if type(a) == list or type(a) == tuple:

        if len(a) != len(b):

            return False

        return all(map(lambda t: compare(t[0], t[1]), zip(a, b)))

    elif type(a) == dict:

        if len(a) != len(b):

            return False

        for k, v in a.items():

            if not compare(v, b[k]):

                return False

        return True

    else:

        return a == b

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def pack_data(request):

    request['data'] = jsonutils.dumps(request['data'])

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class FakeRpcBadRequest(Exception):

pass

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class FakeRpcIsNotCalled(Exception):

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    def __init__(self, handle, url_params, data):

        self.handle = handle

        self.url_params = url_params

        self.data = data

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    def __str__(self):

        return 'Fake Rpc handle for {0}/{1}/{2} not found'.format(

            self.handle, self.url_params, self.data)

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class FakeRpcHandle(object):

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    def __init__(self, handle, url_params, data, result):

        self.handle = handle

        self.url_params = url_params

        self.data = data

        self.result = result

        self._is_called = False

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    def set_called(self):

        self._is_called = True

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    def __call__(self, handle, url_params, data,

                 allow_empty_response=False):

        if handle != self.handle:

            raise FakeRpcBadRequest(

                'Unexpected handle name {0}. Expected {1}.'

                .format(handle, self.handle))

        if not compare(url_params, self.url_params):

            raise FakeRpcBadRequest('Unexpected url params: {0} / {1}'

                                    .format(url_params, self.url_params))

        if not compare(data, self.data):

            raise FakeRpcBadRequest('Unexpected data: {0}/{1}'

                                    .format(data, self.data))

        if callable(self.result):

            return self.result()

        else:

            return self.result

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class FakeRpc(object):

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    def __init__(self):

        self._handles = []

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    def handle(self, handle, url_params, data, result):

        self._handles.append(FakeRpcHandle(handle, url_params, data, result))

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    def __call__(self, handle_name, url_params, data,

                 allow_empty_response=False):

        for handle in self._handles:

            if (handle.handle == handle_name and

                compare(handle.url_params, url_params) and

                    compare(handle.data, handle.data)):

                handle.set_called()

                return handle(handle_name, url_params, data,

                              allow_empty_response)

        raise FakeRpcIsNotCalled(handle_name, url_params, data)

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class CoraidDriverTestCase(test.TestCase):

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    def setUp(self):

        super(CoraidDriverTestCase, self).setUp()

        self.mox = mox.Mox()

        configuration = mox.MockObject(conf.Configuration)

        configuration.append_config_values(mox.IgnoreArg())

        configuration.coraid_esm_address = fake_esm_ipaddress

        configuration.coraid_user = fake_esm_username

        configuration.coraid_group = fake_esm_group

        configuration.coraid_password = fake_esm_password

        configuration.volume_name_template = "volume-%s"

        configuration.snapshot_name_template = "snapshot-%s"

        configuration.coraid_repository_key = fake_coraid_repository_key

        configuration.use_multipath_for_image_xfer = False

        configuration.num_volume_device_scan_tries = 3

        configuration.volume_dd_blocksize = '1M'

        self.fake_rpc = FakeRpc()

        self.stubs.Set(coraid.CoraidRESTClient, 'rpc', self.fake_rpc)

        self.driver = coraid.CoraidDriver(configuration=configuration)

        self.driver.do_setup({})

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    def tearDown(self):

        self.mox.UnsetStubs()

        super(CoraidDriverTestCase, self).tearDown()

**** CubicPower OpenStack Study ****

    def mock_volume_types(self, repositories=[]):

        if not repositories:

            repositories = [fake_repository_name]

        self.mox.StubOutWithMock(volume_types, 'get_volume_type_extra_specs')

        for repository in repositories:

            (volume_types

             .get_volume_type_extra_specs(fake_volume_type['id'],

                                          fake_coraid_repository_key)

             .AndReturn(' {0}'.format(repository)))

**** CubicPower OpenStack Study ****

class CoraidDriverLoginSuccessTestCase(CoraidDriverTestCase):

**** CubicPower OpenStack Study ****

    def setUp(self):

        super(CoraidDriverLoginSuccessTestCase, self).setUp()

        login_results = {'state': 'adminSucceed',

                         'values': [

                             {'fullPath':

                              'admin group:{0}'.format(fake_esm_group),

                              'groupId': fake_esm_group_id

                              }]}

        self.fake_rpc.handle('admin', {'op': 'login',

                                       'username': fake_esm_username,

                                       'password': fake_esm_password},

                             'Login', login_results)

        self.fake_rpc.handle('admin', {'op': 'setRbacGroup',

                                       'groupId': fake_esm_group_id},

                             'Group', {'state': 'adminSucceed'})

**** CubicPower OpenStack Study ****

class CoraidDriverApplianceTestCase(CoraidDriverLoginSuccessTestCase):

**** CubicPower OpenStack Study ****

    def test_resize_volume(self):

        new_volume_size = int(fake_volume_size) + 1

        fetch_request = {'shelf': 'cms',

                         'orchStrRepo': '',

                         'lv': fake_volume_name}

        self.fake_rpc.handle('fetch', fetch_request, None,

                             fake_esm_fetch)

        reply = {'configState': 'completedSuccessfully'}

        resize_volume_request = {'addr': 'cms',

                                 'data': {

                                     'lvName': fake_volume_name,

                                     'newLvName': fake_volume_name + '-resize',

                                     'size':

                                         coraid_volume_size(new_volume_size),

                                     'repoName': fake_repository_name},

                                 'op': 'orchStrLunMods',

                                 'args': 'resize'}

        pack_data(resize_volume_request)

        self.fake_rpc.handle('configure', {}, [resize_volume_request],

                             reply)

        real_reply = self.driver.appliance.resize_volume(fake_volume_name,

                                                         new_volume_size)

        self.assertEqual(reply['configState'], real_reply['configState'])

**** CubicPower OpenStack Study ****

class CoraidDriverIntegrationalTestCase(CoraidDriverLoginSuccessTestCase):

**** CubicPower OpenStack Study ****

    def setUp(self):

        super(CoraidDriverIntegrationalTestCase, self).setUp()

        self.appliance = self.driver.appliance

        # NOTE(nsobolevsky) prevent re-creation esm appliance

        self.stubs.Set(coraid.CoraidDriver, 'appliance', self.appliance)

**** CubicPower OpenStack Study ****

    def test_create_volume(self):

        self.mock_volume_types()

        create_volume_request = {'addr': 'cms',

                                 'data': {

                                     'servers': [],

                                     'size':

                                         coraid_volume_size(fake_volume_size),

                                     'repoName': fake_repository_name,

                                     'lvName': fake_volume_name},

                                 'op': 'orchStrLun',

                                 'args': 'add'}

        pack_data(create_volume_request)

        self.fake_rpc.handle('configure', {}, [create_volume_request],

                             {'configState': 'completedSuccessfully',

                              'firstParam': 'fake_first_param'})

        self.mox.ReplayAll()

        self.driver.create_volume(fake_volume)

        self.mox.VerifyAll()

**** CubicPower OpenStack Study ****

    def test_delete_volume(self):

        delete_volume_request = {'addr': 'cms',

                                 'data': {

                                     'repoName': fake_repository_name,

                                     'lvName': fake_volume_name},

                                 'op': 'orchStrLun/verified',

                                 'args': 'delete'}

        pack_data(delete_volume_request)

        self.fake_rpc.handle('configure', {}, [delete_volume_request],

                             {'configState': 'completedSuccessfully'})

        self.fake_rpc.handle('fetch', {'orchStrRepo': '',

                                       'shelf': 'cms',

                                       'lv': fake_volume_name},

                             None,

                             fake_esm_fetch)

        self.mox.ReplayAll()

        self.driver.delete_volume(fake_volume)

        self.mox.VerifyAll()

**** CubicPower OpenStack Study ****

    def test_ping_ok(self):

        self.fake_rpc.handle('fetch', {}, None, '')

        self.mox.ReplayAll()

        self.driver.appliance.ping()

        self.mox.VerifyAll()

**** CubicPower OpenStack Study ****

    def test_ping_failed(self):

        def rpc(handle, url_params, data,

                allow_empty_response=True):

            raise test.TestingException("Some exception")

        self.stubs.Set(self.driver.appliance, 'rpc', rpc)

        self.mox.ReplayAll()

        self.assertRaises(exception.CoraidESMNotAvailable,

                          self.driver.appliance.ping)

        self.mox.VerifyAll()

**** CubicPower OpenStack Study ****

        def rpc(handle, url_params, data,

                allow_empty_response=True):

            raise test.TestingException("Some exception")

        self.stubs.Set(self.driver.appliance, 'rpc', rpc)

        self.mox.ReplayAll()

        self.assertRaises(exception.CoraidESMNotAvailable,

                          self.driver.appliance.ping)

        self.mox.VerifyAll()

**** CubicPower OpenStack Study ****

    def test_delete_not_existing_lun(self):

        delete_volume_request = {'addr': 'cms',

                                 'data': {

                                     'repoName': fake_repository_name,

                                     'lvName': fake_volume_name},

                                 'op': 'orchStrLun/verified',

                                 'args': 'delete'}

        pack_data(delete_volume_request)

        self.fake_rpc.handle('configure', {}, [delete_volume_request],

                             {'configState': 'completedSuccessfully'})

        self.fake_rpc.handle('fetch', {'orchStrRepo': '',

                                       'shelf': 'cms',

                                       'lv': fake_volume_name},

                             None,

                             fake_esm_fetch_no_volume)

        self.mox.ReplayAll()

        self.assertRaises(

            exception.VolumeNotFound,

            self.driver.appliance.delete_lun,

            fake_volume['name'])

        self.mox.VerifyAll()

**** CubicPower OpenStack Study ****

    def test_delete_not_existing_volumeappliance_is_ok(self):

        def delete_lun(volume_name):

            raise exception.VolumeNotFound(volume_id=fake_volume['name'])

        self.stubs.Set(self.driver.appliance, 'delete_lun', delete_lun)

        def ping():

            pass

        self.stubs.Set(self.driver.appliance, 'ping', ping)

        self.mox.ReplayAll()

        self.driver.delete_volume(fake_volume)

        self.mox.VerifyAll()

**** CubicPower OpenStack Study ****

        def delete_lun(volume_name):

            raise exception.VolumeNotFound(volume_id=fake_volume['name'])

        self.stubs.Set(self.driver.appliance, 'delete_lun', delete_lun)

**** CubicPower OpenStack Study ****

        def ping():

            pass

        self.stubs.Set(self.driver.appliance, 'ping', ping)

        self.mox.ReplayAll()

        self.driver.delete_volume(fake_volume)

        self.mox.VerifyAll()

**** CubicPower OpenStack Study ****

    def test_delete_not_existing_volume_sleepingappliance(self):

        def delete_lun(volume_name):

            raise exception.VolumeNotFound(volume_id=fake_volume['name'])

        self.stubs.Set(self.driver.appliance, 'delete_lun', delete_lun)

        def ping():

            raise exception.CoraidESMNotAvailable(reason="Any reason")

        self.stubs.Set(self.driver.appliance, 'ping', ping)

        self.driver.appliance.ping = ping

        self.mox.ReplayAll()

        self.assertRaises(exception.CoraidESMNotAvailable,

                          self.driver.delete_volume,

                          fake_volume)

        self.mox.VerifyAll()

**** CubicPower OpenStack Study ****

        def delete_lun(volume_name):

            raise exception.VolumeNotFound(volume_id=fake_volume['name'])

        self.stubs.Set(self.driver.appliance, 'delete_lun', delete_lun)

**** CubicPower OpenStack Study ****

        def ping():

            raise exception.CoraidESMNotAvailable(reason="Any reason")

        self.stubs.Set(self.driver.appliance, 'ping', ping)

        self.driver.appliance.ping = ping

        self.mox.ReplayAll()

        self.assertRaises(exception.CoraidESMNotAvailable,

                          self.driver.delete_volume,

                          fake_volume)

        self.mox.VerifyAll()

**** CubicPower OpenStack Study ****

    def test_create_snapshot(self):

        fetch_request = {'shelf': 'cms',

                         'orchStrRepo': '',

                         'lv': fake_volume_name}

        self.fake_rpc.handle('fetch', fetch_request, None,

                             fake_esm_fetch)

        create_snapshot_request = {'addr': 'cms',

                                   'data': {

                                       'repoName': fake_repository_name,

                                       'lvName': fake_volume_name,

                                       'newLvName': fake_snapshot_name},

                                   'op': 'orchStrLunMods',

                                   'args': 'addClSnap'}

        pack_data(create_snapshot_request)

        self.fake_rpc.handle('configure', {}, [create_snapshot_request],

                             {'configState': 'completedSuccessfully'})

        self.mox.ReplayAll()

        self.driver.create_snapshot(fake_snapshot)

        self.mox.VerifyAll()

**** CubicPower OpenStack Study ****

    def test_delete_snapshot(self):

        fetch_request = {'shelf': 'cms',

                         'orchStrRepo': '',

                         'lv': fake_snapshot_name}

        self.fake_rpc.handle('fetch', fetch_request, None,

                             fake_esm_fetch)

        delete_snapshot_request = {'addr': 'cms',

                                   'data': {

                                       'repoName': fake_repository_name,

                                       'lvName': fake_snapshot_name},

                                   'op': 'orchStrLunMods',

                                   'args': 'delClSnap'}

        pack_data(delete_snapshot_request)

        self.fake_rpc.handle('configure', {}, [delete_snapshot_request],

                             {'configState': 'completedSuccessfully'})

        self.mox.ReplayAll()

        self.driver.delete_snapshot(fake_snapshot)

        self.mox.VerifyAll()

**** CubicPower OpenStack Study ****

    def test_create_volume_from_snapshot(self):

        self.mock_volume_types()

        self.mox.StubOutWithMock(self.driver.appliance, 'resize_volume')

        self.driver.appliance.resize_volume(fake_volume_name,

                                            fake_volume['size'])\

            .AndReturn(None)

        fetch_request = {'shelf': 'cms',

                         'orchStrRepo': '',

                         'lv': fake_snapshot_name}

        self.fake_rpc.handle('fetch', fetch_request, None,

                             fake_esm_fetch)

        create_clone_request = {'addr': 'cms',

                                'data': {

                                    'lvName': fake_snapshot_name,

                                    'repoName': fake_repository_name,

                                    'newLvName': fake_volume_name,

                                    'newRepoName': fake_repository_name},

                                'op': 'orchStrLunMods',

                                'args': 'addClone'}

        pack_data(create_clone_request)

        self.fake_rpc.handle('configure', {}, [create_clone_request],

                             {'configState': 'completedSuccessfully'})

        self.mox.ReplayAll()

        self.driver.create_volume_from_snapshot(fake_volume, fake_snapshot)

        self.mox.VerifyAll()

**** CubicPower OpenStack Study ****

    def test_initialize_connection(self):

        fetch_request = {'shelf': 'cms',

                         'orchStrRepo': '',

                         'lv': fake_volume_name}

        self.fake_rpc.handle('fetch', fetch_request, None,

                             fake_esm_fetch)

        self.mox.ReplayAll()

        connection = self.driver.initialize_connection(fake_volume, {})

        self.mox.VerifyAll()

        self.assertEqual(connection['driver_volume_type'], 'aoe')

        self.assertEqual(connection['data']['target_shelf'], fake_shelf)

        self.assertEqual(connection['data']['target_lun'], fake_lun)

**** CubicPower OpenStack Study ****

    def test_get_repository_capabilities(self):

        reply = [[{}, {'reply': [

            {'name': 'repo1',

             'profile':

                {'fullName': 'Bronze-Bronze:Profile1'}},

            {'name': 'repo2',

             'profile':

                {'fullName': 'Bronze-Bronze:Profile2'}}]}]]

        self.fake_rpc.handle('fetch', {'orchStrRepo': ''}, None,

                             reply)

        self.mox.ReplayAll()

        capabilities = self.driver.get_volume_stats(refresh=True)

        self.mox.VerifyAll()

        self.assertEqual(

            capabilities[fake_coraid_repository_key],

            'Bronze-Bronze:Profile1:repo1 Bronze-Bronze:Profile2:repo2')

**** CubicPower OpenStack Study ****

    def test_create_cloned_volume(self):

        self.mock_volume_types([fake_repository_name])

        fetch_request = {'shelf': 'cms',

                         'orchStrRepo': '',

                         'lv': fake_volume_name}

        self.fake_rpc.handle('fetch', fetch_request, None,

                             fake_esm_fetch)

        shelf_lun = '{0}.{1}'.format(fake_shelf, fake_lun)

        create_clone_request = {'addr': 'cms',

                                'data': {

                                    'shelfLun': shelf_lun,

                                    'lvName': fake_volume_name,

                                    'repoName': fake_repository_name,

                                    'newLvName': fake_clone_name,

                                    'newRepoName': fake_repository_name},

                                'op': 'orchStrLunMods',

                                'args': 'addClone'}

        pack_data(create_clone_request)

        self.fake_rpc.handle('configure', {}, [create_clone_request],

                             {'configState': 'completedSuccessfully'})

        self.mox.ReplayAll()

        self.driver.create_cloned_volume(fake_clone_volume, fake_volume)

        self.mox.VerifyAll()

**** CubicPower OpenStack Study ****

    def test_create_cloned_volume_with_resize(self):

        self.mock_volume_types([fake_repository_name])

        self.mox.StubOutWithMock(self.driver.appliance, 'resize_volume')

        self.driver.appliance.resize_volume(fake_big_clone_volume['name'],

                                            fake_big_clone_volume['size'])\

            .AndReturn(None)

        fetch_request = {'shelf': 'cms',

                         'orchStrRepo': '',

                         'lv': fake_volume_name}

        self.fake_rpc.handle('fetch', fetch_request, None,

                             fake_esm_fetch)

        shelf_lun = '{0}.{1}'.format(fake_shelf, fake_lun)

        create_clone_request = {'addr': 'cms',

                                'data': {

                                    'shelfLun': shelf_lun,

                                    'lvName': fake_volume_name,

                                    'repoName': fake_repository_name,

                                    'newLvName': fake_clone_name,

                                    'newRepoName': fake_repository_name},

                                'op': 'orchStrLunMods',

                                'args': 'addClone'}

        pack_data(create_clone_request)

        self.fake_rpc.handle('configure', {}, [create_clone_request],

                             {'configState': 'completedSuccessfully'})

        self.mox.ReplayAll()

        self.driver.create_cloned_volume(fake_big_clone_volume, fake_volume)

        self.mox.VerifyAll()

**** CubicPower OpenStack Study ****

    def test_create_cloned_volume_in_different_repository(self):

        self.mock_volume_types([fake_repository_name + '_another'])

        fetch_request = {'shelf': 'cms',

                         'orchStrRepo': '',

                         'lv': fake_volume_name}

        self.fake_rpc.handle('fetch', fetch_request, None,

                             fake_esm_fetch)

        self.mox.ReplayAll()

        self.assertRaises(

            exception.CoraidException,

            self.driver.create_cloned_volume,

            fake_clone_volume,

            fake_volume)

        self.mox.VerifyAll()

**** CubicPower OpenStack Study ****

    def test_extend_volume(self):

        self.mox.StubOutWithMock(self.driver.appliance, 'resize_volume')

        self.driver.appliance.resize_volume(fake_volume_name, 10)\

            .AndReturn(None)

        self.mox.ReplayAll()

        self.driver.extend_volume(fake_volume, 10)

        self.mox.VerifyAll()

**** CubicPower OpenStack Study ****

class AutoReloginCoraidTestCase(test.TestCase):

**** CubicPower OpenStack Study ****

    def setUp(self):

        super(AutoReloginCoraidTestCase, self).setUp()

        self.mox = mox.Mox()

        self.rest_client = coraid.CoraidRESTClient('https://fake')

        self.appliance = coraid.CoraidAppliance(self.rest_client,

                                                'fake_username',

                                                'fake_password',

                                                'fake_group')

**** CubicPower OpenStack Study ****

    def tearDown(self):

        self.mox.UnsetStubs()

        super(AutoReloginCoraidTestCase, self).tearDown()

**** CubicPower OpenStack Study ****

    def _test_auto_relogin_fail(self, state):

        self.mox.StubOutWithMock(self.rest_client, 'rpc')

        self.rest_client.rpc('fake_handle', {}, None, False).\

            AndReturn({'state': state,

                       'metaCROp': 'reboot'})

        self.rest_client.rpc('fake_handle', {}, None, False).\

            AndReturn({'state': state,

                       'metaCROp': 'reboot'})

        self.rest_client.rpc('fake_handle', {}, None, False).\

            AndReturn({'state': state,

                       'metaCROp': 'reboot'})

        self.mox.StubOutWithMock(self.appliance, '_ensure_session')

        self.appliance._ensure_session().AndReturn(None)

        self.mox.StubOutWithMock(self.appliance, '_relogin')

        self.appliance._relogin().AndReturn(None)

        self.appliance._relogin().AndReturn(None)

        self.mox.ReplayAll()

        self.assertRaises(exception.CoraidESMReloginFailed,

                          self.appliance.rpc,

                          'fake_handle', {}, None, False)

        self.mox.VerifyAll()

**** CubicPower OpenStack Study ****

    def test_auto_relogin_fail_admin(self):

        self._test_auto_relogin_fail('GeneralAdminFailure')

**** CubicPower OpenStack Study ****

    def test_auto_relogin_fail_inactivity(self):

        self._test_auto_relogin_fail('passwordInactivityTimeout')

**** CubicPower OpenStack Study ****

    def test_auto_relogin_fail_absolute(self):

        self._test_auto_relogin_fail('passwordAbsoluteTimeout')

**** CubicPower OpenStack Study ****

    def test_auto_relogin_success(self):

        self.mox.StubOutWithMock(self.rest_client, 'rpc')

        self.rest_client.rpc('fake_handle', {}, None, False).\

            AndReturn({'state': 'GeneralAdminFailure',

                       'metaCROp': 'reboot'})

        self.rest_client.rpc('fake_handle', {}, None, False).\

            AndReturn({'state': 'ok'})

        self.mox.StubOutWithMock(self.appliance, '_ensure_session')

        self.appliance._ensure_session().AndReturn(None)

        self.mox.StubOutWithMock(self.appliance, '_relogin')

        self.appliance._relogin().AndReturn(None)

        self.mox.ReplayAll()

        reply = self.appliance.rpc('fake_handle', {}, None, False)

        self.mox.VerifyAll()

        self.assertEqual(reply['state'], 'ok')

**** CubicPower OpenStack Study ****

class CoraidDriverImageTestCases(CoraidDriverTestCase):

**** CubicPower OpenStack Study ****

    def setUp(self):

        super(CoraidDriverImageTestCases, self).setUp()

        self.fake_dev_path = '/dev/ether/fake_dev'

        self.fake_connection = {'driver_volume_type': 'aoe',

                                'data': {'target_shelf': fake_shelf,

                                         'target_lun': fake_lun}}

        self.fake_volume_info = {

            'shelf': self.fake_connection['data']['target_shelf'],

            'lun': self.fake_connection['data']['target_lun']}

        self.mox.StubOutWithMock(self.driver, 'initialize_connection')

        self.driver.initialize_connection(fake_volume, {})\

            .AndReturn(self.fake_connection)

        self.mox.StubOutWithMock(self.driver, 'terminate_connection')

        self.driver.terminate_connection(fake_volume, mox.IgnoreArg(),

                                         force=False).AndReturn(None)

        root_helper = 'sudo cinder-rootwrap /etc/cinder/rootwrap.conf'

        self.mox.StubOutWithMock(connector, 'get_connector_properties')

        connector.get_connector_properties(root_helper,

                                           CONF.my_ip).\

            AndReturn({})

        self.mox.StubOutWithMock(utils, 'brick_get_connector')

        aoe_initiator = self.mox.CreateMockAnything()

        utils.brick_get_connector('aoe',

                                  device_scan_attempts=3,

                                  use_multipath=False,

                                  conn=mox.IgnoreArg()).\

            AndReturn(aoe_initiator)

        aoe_initiator\

            .connect_volume(self.fake_connection['data'])\

            .AndReturn({'path': self.fake_dev_path})

        aoe_initiator.check_valid_device(self.fake_dev_path)\

            .AndReturn(True)

        aoe_initiator.disconnect_volume(

            {'target_shelf': self.fake_volume_info['shelf'],

             'target_lun': self.fake_volume_info['lun']}, mox.IgnoreArg())

**** CubicPower OpenStack Study ****

    def test_copy_volume_to_image(self):

        fake_image_service = 'fake-image-service'

        fake_image_meta = 'fake-image-meta'

        self.mox.StubOutWithMock(image_utils, 'upload_volume')

        image_utils.upload_volume({},

                                  fake_image_service,

                                  fake_image_meta,

                                  self.fake_dev_path)

        self.mox.ReplayAll()

        self.driver.copy_volume_to_image({},

                                         fake_volume,

                                         fake_image_service,

                                         fake_image_meta)

        self.mox.VerifyAll()

**** CubicPower OpenStack Study ****

    def test_copy_image_to_volume(self):

        fake_image_service = 'fake-image-service'

        fake_image_id = 'fake-image-id;'

        self.mox.StubOutWithMock(image_utils, 'fetch_to_raw')

        image_utils.fetch_to_raw({},

                                 fake_image_service,

                                 fake_image_id,

                                 self.fake_dev_path,

                                 mox.IgnoreArg(),

                                 size=fake_volume_size)

        self.mox.ReplayAll()

        self.driver.copy_image_to_volume({},

                                         fake_volume,

                                         fake_image_service,

                                         fake_image_id)

        self.mox.VerifyAll()

**** CubicPower OpenStack Study ****

class CoraidResetConnectionTestCase(CoraidDriverTestCase):

**** CubicPower OpenStack Study ****

    def test_create_new_appliance_for_every_request(self):

        self.mox.StubOutWithMock(coraid, 'CoraidRESTClient')

        self.mox.StubOutWithMock(coraid, 'CoraidAppliance')

        coraid.CoraidRESTClient(mox.IgnoreArg())

        coraid.CoraidRESTClient(mox.IgnoreArg())

        coraid.CoraidAppliance(mox.IgnoreArg(),

                               mox.IgnoreArg(),

                               mox.IgnoreArg(),

                               mox.IgnoreArg()).AndReturn('fake_app1')

        coraid.CoraidAppliance(mox.IgnoreArg(),

                               mox.IgnoreArg(),

                               mox.IgnoreArg(),

                               mox.IgnoreArg()).AndReturn('fake_app2')

        self.mox.ReplayAll()

        self.assertEqual(self.driver.appliance, 'fake_app1')

        self.assertEqual(self.driver.appliance, 'fake_app2')

        self.mox.VerifyAll()