text: """
  Copyright 2014 Rackspace
  
  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.
  """
  
  from cafe.drivers.unittest.decorators import tags
  from cloudcafe.images.common.types import ImageMemberStatus
  from cloudcafe.compute.common.exceptions import Forbidden, ItemNotFound
  
  from cloudroast.images.fixtures import ImagesFixture
  
  
  class ImageMembershipSharingCycleTest(ImagesFixture):
  
      @classmethod
      def setUpClass(cls):
          super(ImageMembershipSharingCycleTest, cls).setUpClass()
          cls.image = cls.images_behavior.create_image_via_task()
  
      @tags(type='positive', regression='true')
      def test_image_membership_sharing_cycle(self):
          """
          @summary: Image membership sharing cycle:
          tenant shares to alt_tenant, but alt_tenant cannot share to
          third_tenant.
  
          1) Given a previously created image, verify that list of image members
          is empty
          2) Verify that alternative tenant cannot access the image
          3) Verify that third tenant cannot access the image
          4) Share image with alternative tenant as tenant
          5) Verify that list of image members contains alternative tenant
          6) Update alternative tenant membership status to 'Accepted'
          7) Share the image with third tenant as alternative tenant
          8) Verify that the response code is 403
          9) Verify that third tenant cannot access the image
          10) Verify that list of image members does not contain third tenant
          """
  
          members_ids = self.images_behavior.get_member_ids(
              image_id=self.image.id_)
          self.assertEqual(members_ids, [])
  
          with self.assertRaises(ItemNotFound):
              self.alt_images_client.get_image(image_id=self.image.id_)
  
          with self.assertRaises(ItemNotFound):
              self.third_images_client.get_image(image_id=self.image.id_)
  
          response = self.images_client.add_member(image_id=self.image.id_,
                                                   member_id=self.alt_tenant_id)
          self.assertEqual(response.status_code, 200)
          member = response.entity
          self.assertEqual(member.member_id, self.alt_tenant_id)
          self.assertEqual(member.status, ImageMemberStatus.PENDING)
  
          members_ids = self.images_behavior.get_member_ids(
              image_id=self.image.id_)
          self.assertIn(self.alt_tenant_id, members_ids)
  
          response = self.alt_images_client.update_member(
              image_id=self.image.id_, member_id=self.alt_tenant_id,
              status=ImageMemberStatus.ACCEPTED)
          self.assertEqual(response.status_code, 200)
          updated_member = response.entity
          self.assertEqual(updated_member.member_id, self.alt_tenant_id)
          self.assertEqual(updated_member.status, ImageMemberStatus.ACCEPTED)
  
          with self.assertRaises(Forbidden):
              self.alt_images_client.add_member(image_id=self.image.id_,
                                                member_id=self.third_tenant_id)
  
          with self.assertRaises(ItemNotFound):
              self.third_images_client.get_image(image_id=self.image.id_)
  
          members_ids = self.images_behavior.get_member_ids(
              image_id=self.image.id_)
          self.assertNotIn(self.third_tenant_id, members_ids)
  