text: #    Copyright 2017 GoDaddy
  #
  #    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 oslo_config import cfg
  from oslo_config import fixture as oslo_fixture
  import pecan.testing
  
  from octavia.api import config as pconfig
  from octavia.common import constants
  from octavia.tests.functional.db import base as base_db_test
  
  
  class TestRootController(base_db_test.OctaviaDBTestBase):
  
      def get(self, app, path, params=None, headers=None, status=200,
              expect_errors=False):
          response = app.get(
              path, params=params, headers=headers, status=status,
              expect_errors=expect_errors)
          return response
  
      def setUp(self):
          super(TestRootController, self).setUp()
          self.conf = self.useFixture(oslo_fixture.Config(cfg.CONF))
          self.conf.config(group='api_settings', auth_strategy=constants.NOAUTH)
  
      def _get_versions_with_config(self):
          # Note: we need to set argv=() to stop the wsgi setup_app from
          # pulling in the testing tool sys.argv
          app = pecan.testing.load_test_app({'app': pconfig.app,
                                             'wsme': pconfig.wsme}, argv=())
          return self.get(app=app, path='/').json.get('versions', None)
  
      def test_api_versions(self):
          versions = self._get_versions_with_config()
          version_ids = tuple(v.get('id') for v in versions)
          self.assertEqual(19, len(version_ids))
          self.assertIn('v2.0', version_ids)
          self.assertIn('v2.1', version_ids)
          self.assertIn('v2.2', version_ids)
          self.assertIn('v2.3', version_ids)
          self.assertIn('v2.4', version_ids)
          self.assertIn('v2.5', version_ids)
          self.assertIn('v2.6', version_ids)
          self.assertIn('v2.7', version_ids)
          self.assertIn('v2.8', version_ids)
          self.assertIn('v2.9', version_ids)
          self.assertIn('v2.10', version_ids)
          self.assertIn('v2.11', version_ids)
          self.assertIn('v2.12', version_ids)
          self.assertIn('v2.13', version_ids)
          self.assertIn('v2.14', version_ids)
          self.assertIn('v2.15', version_ids)
          self.assertIn('v2.16', version_ids)
          self.assertIn('v2.17', version_ids)
          self.assertIn('v2.18', version_ids)
  
          # Each version should have a 'self' 'href' to the API version URL
          # [{u'rel': u'self', u'href': u'http://localhost/v2'}]
          # Validate that the URL exists in the response
          version_url = 'http://localhost/v2'
          for version in versions:
              links = version['links']
              # Note, there may be other links present, this test is for 'self'
              version_link = [link for link in links if link['rel'] == 'self']
              self.assertEqual(version_url, version_link[0]['href'])
  