new_contents: #    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 uuid
  
  from functional.common import test
  
  
  class VolumeQosTests(test.TestCase):
      """Functional tests for volume qos. """
  
      NAME = uuid.uuid4().hex
      HEADERS = ['Name']
      FIELDS = ['id', 'name']
      ID = None
  
      @classmethod
      def setUpClass(cls):
          opts = cls.get_show_opts(cls.FIELDS)
          raw_output = cls.openstack('volume qos create ' + cls.NAME + opts)
          cls.ID, name, rol = raw_output.split('\n')
          cls.assertOutput(cls.NAME, name)
  
      @classmethod
      def tearDownClass(cls):
          raw_output = cls.openstack('volume qos delete ' + cls.ID)
          cls.assertOutput('', raw_output)
  
      def test_volume_qos_list(self):
          opts = self.get_list_opts(self.HEADERS)
          raw_output = self.openstack('volume qos list' + opts)
          self.assertIn(self.NAME, raw_output)
  
      def test_volume_qos_show(self):
          opts = self.get_show_opts(self.FIELDS)
          raw_output = self.openstack('volume qos show ' + self.ID + opts)
          self.assertEqual(self.ID + "\n" + self.NAME + "\n", raw_output)
  
      def test_volume_qos_metadata(self):
          raw_output = self.openstack(
              'volume qos set --property a=b --property c=d ' + self.ID)
          self.assertEqual("", raw_output)
          opts = self.get_show_opts(['name', 'specs'])
          raw_output = self.openstack('volume qos show ' + self.ID + opts)
          self.assertEqual(self.NAME + "\na='b', c='d'\n", raw_output)
  
subject: Add functional tests for volume qos