text: # Copyright 2012 Nebula, Inc.
  # Copyright 2013 IBM Corp.
  #
  #    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 mock
  from oslo_config import cfg
  
  from nova.compute import api as compute_api
  from nova.compute import manager as compute_manager
  from nova.servicegroup import api as service_group_api
  from nova.tests.functional.v3 import test_servers
  
  CONF = cfg.CONF
  CONF.import_opt('osapi_compute_extension',
                  'nova.api.openstack.compute.extensions')
  
  
  class EvacuateJsonTest(test_servers.ServersSampleBase):
      ADMIN_API = True
      extension_name = "os-evacuate"
      extra_extensions_to_load = ["os-access-ips"]
      _api_version = 'v2'
  
      def _get_flags(self):
          f = super(EvacuateJsonTest, self)._get_flags()
          f['osapi_compute_extension'] = CONF.osapi_compute_extension[:]
          f['osapi_compute_extension'].append(
              'nova.api.openstack.compute.contrib.evacuate.Evacuate')
          f['osapi_compute_extension'].append(
              'nova.api.openstack.compute.contrib.extended_evacuate_find_host.'
              'Extended_evacuate_find_host')
          return f
  
      def _test_evacuate(self, req_subs, server_req, server_resp,
                         expected_resp_code):
          self.uuid = self._post_server()
  
          def fake_service_is_up(self, service):
              """Simulate validation of instance host is down."""
              return False
  
          def fake_service_get_by_compute_host(self, context, host):
              """Simulate that given host is a valid host."""
              return {
                      'host_name': host,
                      'service': 'compute',
                      'zone': 'nova'
                      }
  
          def fake_check_instance_exists(self, context, instance):
              """Simulate validation of instance does not exist."""
              return False
  
          self.stubs.Set(service_group_api.API, 'service_is_up',
                         fake_service_is_up)
          self.stubs.Set(compute_api.HostAPI, 'service_get_by_compute_host',
                         fake_service_get_by_compute_host)
          self.stubs.Set(compute_manager.ComputeManager,
                         '_check_instance_exists',
                         fake_check_instance_exists)
  
          response = self._do_post('servers/%s/action' % self.uuid,
                                   server_req, req_subs)
          subs = self._get_regexes()
          self._verify_response(server_resp, subs, response, expected_resp_code)
  
      @mock.patch('nova.conductor.manager.ComputeTaskManager.rebuild_instance')
      def test_server_evacuate(self, rebuild_mock):
          # Note (wingwj): The host can't be the same one
          req_subs = {
              'host': 'testHost',
              "adminPass": "MySecretPass",
              "onSharedStorage": 'False'
          }
          self._test_evacuate(req_subs, 'server-evacuate-req',
                              'server-evacuate-resp', 200)
          rebuild_mock.assert_called_once_with(mock.ANY, instance=mock.ANY,
                  orig_image_ref=mock.ANY, image_ref=mock.ANY,
                  injected_files=mock.ANY, new_pass="MySecretPass",
                  orig_sys_metadata=mock.ANY, bdms=mock.ANY, recreate=mock.ANY,
                  on_shared_storage=False, preserve_ephemeral=mock.ANY,
                  host='testHost')
  
      @mock.patch('nova.conductor.manager.ComputeTaskManager.rebuild_instance')
      def test_server_evacuate_find_host(self, rebuild_mock):
          req_subs = {
              "adminPass": "MySecretPass",
              "onSharedStorage": 'False'
          }
          self._test_evacuate(req_subs, 'server-evacuate-find-host-req',
                              'server-evacuate-find-host-resp', 200)
  
          rebuild_mock.assert_called_once_with(mock.ANY, instance=mock.ANY,
                  orig_image_ref=mock.ANY, image_ref=mock.ANY,
                  injected_files=mock.ANY, new_pass="MySecretPass",
                  orig_sys_metadata=mock.ANY, bdms=mock.ANY, recreate=mock.ANY,
                  on_shared_storage=False, preserve_ephemeral=mock.ANY,
                  host=None)
  