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OpenStack Study: test_cinder_store.py

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# Copyright 2013 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 stubout

from cinderclient.v2 import client as cinderclient

from glance.common import exception

from glance.openstack.common import units

import glance.store.cinder as cinder

from glance.store.location import get_location_from_uri

from glance.tests.unit import base

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class FakeObject(object):

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    def __init__(self, **kwargs):

        for name, value in kwargs.iteritems():

            setattr(self, name, value)

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class TestCinderStore(base.StoreClearingUnitTest):

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    def setUp(self):

        self.config(default_store='cinder',

                    known_stores=['glance.store.cinder.Store'])

        super(TestCinderStore, self).setUp()

        self.stubs = stubout.StubOutForTesting()

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    def test_cinder_configure_add(self):

        store = cinder.Store()

        self.assertRaises(exception.BadStoreConfiguration,

                          store.configure_add)

        store = cinder.Store(context=None)

        self.assertRaises(exception.BadStoreConfiguration,

                          store.configure_add)

        store = cinder.Store(context=FakeObject(service_catalog=None))

        self.assertRaises(exception.BadStoreConfiguration,

                          store.configure_add)

        store = cinder.Store(context=FakeObject(service_catalog=

                                                'fake_service_catalog'))

        store.configure_add()

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    def test_cinder_get_size(self):

        fake_client = FakeObject(auth_token=None, management_url=None)

        fake_volumes = {'12345678-9012-3455-6789-012345678901':

                        FakeObject(size=5)}

        class FakeCinderClient(FakeObject):

            def __init__(self, *args, **kwargs):

                super(FakeCinderClient, self).__init__(client=fake_client,

                                                       volumes=fake_volumes)

        self.stubs.Set(cinderclient, 'Client', FakeCinderClient)

        fake_sc = [{u'endpoints': [{u'publicURL': u'foo_public_url'}],

                    u'endpoints_links': [],

                    u'name': u'cinder',

                    u'type': u'volume'}]

        fake_context = FakeObject(service_catalog=fake_sc,

                                  user='fake_uer',

                                  auth_tok='fake_token',

                                  tenant='fake_tenant')

        uri = 'cinder://%s' % fake_volumes.keys()[0]

        loc = get_location_from_uri(uri)

        store = cinder.Store(context=fake_context)

        image_size = store.get_size(loc)

        self.assertEqual(image_size,

                         fake_volumes.values()[0].size * units.Gi)

        self.assertEqual(fake_client.auth_token, 'fake_token')

        self.assertEqual(fake_client.management_url, 'foo_public_url')