text: # 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 datetime
  import json
  import unittest
  
  import fixtures
  import mock
  import oslo_messaging as messaging
  from oslo_utils import uuidutils
  
  from ironic_inspector.common import ironic as ir_utils
  from ironic_inspector.common import rpc
  from ironic_inspector.common import swift
  import ironic_inspector.conf
  from ironic_inspector.conf import opts as conf_opts
  from ironic_inspector import introspection_state as istate
  from ironic_inspector import main
  from ironic_inspector import node_cache
  from ironic_inspector.plugins import base as plugins_base
  from ironic_inspector.plugins import example as example_plugin
  from ironic_inspector.plugins import introspection_data as intros_data_plugin
  from ironic_inspector import process
  from ironic_inspector import rules
  from ironic_inspector.test import base as test_base
  from ironic_inspector import utils
  
  CONF = ironic_inspector.conf.CONF
  
  
  def _get_error(res):
      return json.loads(res.data.decode('utf-8'))['error']['message']
  
  
  class BaseAPITest(test_base.BaseTest):
      def setUp(self):
          super(BaseAPITest, self).setUp()
          main.app.config['TESTING'] = True
          self.app = main.app.test_client()
          CONF.set_override('auth_strategy', 'noauth')
          self.uuid = uuidutils.generate_uuid()
  
  
  class TestApiIntrospect(BaseAPITest):
      def setUp(self):
          super(TestApiIntrospect, self).setUp()
          self.rpc_get_client_mock = self.useFixture(
              fixtures.MockPatchObject(rpc, 'get_client', autospec=True)).mock
          self.client_mock = mock.MagicMock(spec=messaging.RPCClient)
          self.rpc_get_client_mock.return_value = self.client_mock
  
      def test_introspect_no_authentication(self):
          CONF.set_override('auth_strategy', 'noauth')
  
          res = self.app.post('/v1/introspection/%s' % self.uuid)
  
          self.assertEqual(202, res.status_code)
          self.client_mock.call.assert_called_once_with({}, 'do_introspection',
                                                        node_id=self.uuid,
                                                        manage_boot=True,
                                                        token=None)
  
      def test_intospect_failed(self):
          self.client_mock.call.side_effect = utils.Error("boom")
          res = self.app.post('/v1/introspection/%s' % self.uuid)
  
          self.assertEqual(400, res.status_code)
          self.assertEqual(
              'boom',
              json.loads(res.data.decode('utf-8'))['error']['message'])
          self.client_mock.call.assert_called_once_with({}, 'do_introspection',
                                                        node_id=self.uuid,
                                                        manage_boot=True,
                                                        token=None)
  
      def test_introspect_no_manage_boot(self):
          res = self.app.post('/v1/introspection/%s?manage_boot=0' % self.uuid)
          self.assertEqual(202, res.status_code)
          self.client_mock.call.assert_called_once_with({}, 'do_introspection',
                                                        node_id=self.uuid,
                                                        manage_boot=False,
                                                        token=None)
  
      def test_introspect_can_manage_boot_false(self):
          CONF.set_override('can_manage_boot', False)
          res = self.app.post('/v1/introspection/%s?manage_boot=0' % self.uuid)
          self.assertEqual(202, res.status_code)
          self.client_mock.call.assert_called_once_with({}, 'do_introspection',
                                                        node_id=self.uuid,
                                                        manage_boot=False,
                                                        token=None)
  
      def test_introspect_can_manage_boot_false_failed(self):
          CONF.set_override('can_manage_boot', False)
          res = self.app.post('/v1/introspection/%s' % self.uuid)
          self.assertEqual(400, res.status_code)
          self.assertFalse(self.client_mock.call.called)
  
      def test_introspect_wrong_manage_boot(self):
          res = self.app.post('/v1/introspection/%s?manage_boot=foo' % self.uuid)
          self.assertEqual(400, res.status_code)
          self.assertFalse(self.client_mock.call.called)
          self.assertEqual(
              'Invalid boolean value for manage_boot: foo',
              json.loads(res.data.decode('utf-8'))['error']['message'])
  
      @mock.patch.object(utils, 'check_auth', autospec=True)
      def test_introspect_failed_authentication(self, auth_mock):
          CONF.set_override('auth_strategy', 'keystone')
          auth_mock.side_effect = utils.Error('Boom', code=403)
          res = self.app.post('/v1/introspection/%s' % self.uuid,
                              headers={'X-Auth-Token': 'token'})
          self.assertEqual(403, res.status_code)
          self.assertFalse(self.client_mock.call.called)
  
  
  @mock.patch.object(process, 'process', autospec=True)
  class TestApiContinue(BaseAPITest):
      def test_continue(self, process_mock):
          # should be ignored
          CONF.set_override('auth_strategy', 'keystone')
          process_mock.return_value = {'result': 42}
          res = self.app.post('/v1/continue', data='{"foo": "bar"}')
          self.assertEqual(200, res.status_code)
          process_mock.assert_called_once_with({"foo": "bar"})
          self.assertEqual({"result": 42}, json.loads(res.data.decode()))
  
      def test_continue_failed(self, process_mock):
          process_mock.side_effect = utils.Error("boom")
          res = self.app.post('/v1/continue', data='{"foo": "bar"}')
          self.assertEqual(400, res.status_code)
          process_mock.assert_called_once_with({"foo": "bar"})
          self.assertEqual('boom', _get_error(res))
  
      def test_continue_wrong_type(self, process_mock):
          res = self.app.post('/v1/continue', data='42')
          self.assertEqual(400, res.status_code)
          self.assertEqual('Invalid data: expected a JSON object, got int',
                           _get_error(res))
          self.assertFalse(process_mock.called)
  
  
  class TestApiAbort(BaseAPITest):
      def setUp(self):
          super(TestApiAbort, self).setUp()
          self.rpc_get_client_mock = self.useFixture(
              fixtures.MockPatchObject(rpc, 'get_client', autospec=True)).mock
          self.client_mock = mock.MagicMock(spec=messaging.RPCClient)
          self.rpc_get_client_mock.return_value = self.client_mock
  
      def test_ok(self):
  
          res = self.app.post('/v1/introspection/%s/abort' % self.uuid,
                              headers={'X-Auth-Token': 'token'})
  
          self.client_mock.call.assert_called_once_with({}, 'do_abort',
                                                        node_id=self.uuid,
                                                        token='token')
          self.assertEqual(202, res.status_code)
          self.assertEqual(b'', res.data)
  
      def test_no_authentication(self):
  
          res = self.app.post('/v1/introspection/%s/abort' % self.uuid)
  
          self.client_mock.call.assert_called_once_with({}, 'do_abort',
                                                        node_id=self.uuid,
                                                        token=None)
          self.assertEqual(202, res.status_code)
          self.assertEqual(b'', res.data)
  
      def test_node_not_found(self):
          exc = utils.Error("Not Found.", code=404)
          self.client_mock.call.side_effect = exc
  
          res = self.app.post('/v1/introspection/%s/abort' % self.uuid)
  
          self.client_mock.call.assert_called_once_with({}, 'do_abort',
                                                        node_id=self.uuid,
                                                        token=None)
          self.assertEqual(404, res.status_code)
          data = json.loads(str(res.data.decode()))
          self.assertEqual(str(exc), data['error']['message'])
  
      def test_abort_failed(self):
          exc = utils.Error("Locked.", code=409)
          self.client_mock.call.side_effect = exc
  
          res = self.app.post('/v1/introspection/%s/abort' % self.uuid)
  
          self.client_mock.call.assert_called_once_with({}, 'do_abort',
                                                        node_id=self.uuid,
                                                        token=None)
          self.assertEqual(409, res.status_code)
          data = json.loads(res.data.decode())
          self.assertEqual(str(exc), data['error']['message'])
  
  
  class GetStatusAPIBaseTest(BaseAPITest):
      def setUp(self):
          super(GetStatusAPIBaseTest, self).setUp()
          self.uuid2 = uuidutils.generate_uuid()
          self.finished_node = node_cache.NodeInfo(
              uuid=self.uuid,
              started_at=datetime.datetime(1, 1, 1),
              finished_at=datetime.datetime(1, 1, 2),
              error='boom',
              state=istate.States.error)
          self.finished_node.links = [
              {u'href': u'http://localhost/v1/introspection/%s' %
               self.finished_node.uuid,
               u'rel': u'self'},
          ]
          self.finished_node.status = {
              'finished': True,
              'state': self.finished_node._state,
              'started_at': self.finished_node.started_at.isoformat(),
              'finished_at': self.finished_node.finished_at.isoformat(),
              'error': self.finished_node.error,
              'uuid': self.finished_node.uuid,
              'links': self.finished_node.links
          }
  
          self.unfinished_node = node_cache.NodeInfo(
              uuid=self.uuid2,
              started_at=datetime.datetime(1, 1, 1),
              state=istate.States.processing)
          self.unfinished_node.links = [
              {u'href': u'http://localhost/v1/introspection/%s' %
               self.unfinished_node.uuid,
               u'rel': u'self'}
          ]
          finished_at = (self.unfinished_node.finished_at.isoformat()
                         if self.unfinished_node.finished_at else None)
          self.unfinished_node.status = {
              'finished': False,
              'state': self.unfinished_node._state,
              'started_at': self.unfinished_node.started_at.isoformat(),
              'finished_at': finished_at,
              'error': None,
              'uuid': self.unfinished_node.uuid,
              'links': self.unfinished_node.links
          }
  
  
  @mock.patch.object(node_cache, 'get_node', autospec=True)
  class TestApiGetStatus(GetStatusAPIBaseTest):
      def test_get_introspection_in_progress(self, get_mock):
          get_mock.return_value = self.unfinished_node
          res = self.app.get('/v1/introspection/%s' % self.uuid)
          self.assertEqual(200, res.status_code)
          self.assertEqual(self.unfinished_node.status,
                           json.loads(res.data.decode('utf-8')))
  
      def test_get_introspection_finished(self, get_mock):
          get_mock.return_value = self.finished_node
          res = self.app.get('/v1/introspection/%s' % self.uuid)
          self.assertEqual(200, res.status_code)
          self.assertEqual(self.finished_node.status,
                           json.loads(res.data.decode('utf-8')))
  
  
  @mock.patch.object(node_cache, 'get_node_list', autospec=True)
  class TestApiListStatus(GetStatusAPIBaseTest):
  
      def test_list_introspection(self, list_mock):
          list_mock.return_value = [self.finished_node, self.unfinished_node]
          res = self.app.get('/v1/introspection')
          self.assertEqual(200, res.status_code)
          statuses = json.loads(res.data.decode('utf-8')).get('introspection')
  
          self.assertEqual([self.finished_node.status,
                            self.unfinished_node.status], statuses)
          list_mock.assert_called_once_with(marker=None,
                                            limit=CONF.api_max_limit)
  
      def test_list_introspection_limit(self, list_mock):
          res = self.app.get('/v1/introspection?limit=1000')
          self.assertEqual(200, res.status_code)
          list_mock.assert_called_once_with(marker=None, limit=1000)
  
      def test_list_introspection_makrer(self, list_mock):
          res = self.app.get('/v1/introspection?marker=%s' %
                             self.finished_node.uuid)
          self.assertEqual(200, res.status_code)
          list_mock.assert_called_once_with(marker=self.finished_node.uuid,
                                            limit=CONF.api_max_limit)
  
  
  class TestApiGetData(BaseAPITest):
      def setUp(self):
          super(TestApiGetData, self).setUp()
          self.introspection_data = {
              'ipmi_address': '1.2.3.4',
              'cpus': 2,
              'cpu_arch': 'x86_64',
              'memory_mb': 1024,
              'local_gb': 20,
              'interfaces': {
                  'em1': {'mac': '11:22:33:44:55:66', 'ip': '1.2.0.1'},
              }
          }
  
      @mock.patch.object(swift, 'SwiftAPI', autospec=True)
      def test_get_introspection_data_from_swift(self, swift_mock):
          CONF.set_override('store_data', 'swift', 'processing')
          swift_conn = swift_mock.return_value
          swift_conn.get_object.return_value = json.dumps(
              self.introspection_data)
          res = self.app.get('/v1/introspection/%s/data' % self.uuid)
          name = 'inspector_data-%s' % self.uuid
          swift_conn.get_object.assert_called_once_with(name)
          self.assertEqual(200, res.status_code)
          self.assertEqual(self.introspection_data,
                           json.loads(res.data.decode('utf-8')))
  
      @mock.patch.object(intros_data_plugin, 'DatabaseStore',
                         autospec=True)
      def test_get_introspection_data_from_db(self, db_mock):
          CONF.set_override('store_data', 'database', 'processing')
          db_store = db_mock.return_value
          db_store.get.return_value = json.dumps(self.introspection_data)
          res = self.app.get('/v1/introspection/%s/data' % self.uuid)
          db_store.get.assert_called_once_with(self.uuid, processed=True,
                                               get_json=False)
          self.assertEqual(200, res.status_code)
          self.assertEqual(self.introspection_data,
                           json.loads(res.data.decode('utf-8')))
  
      def test_introspection_data_not_stored(self):
          CONF.set_override('store_data', 'none', 'processing')
          res = self.app.get('/v1/introspection/%s/data' % self.uuid)
          self.assertEqual(404, res.status_code)
  
      @mock.patch.object(ir_utils, 'get_node', autospec=True)
      @mock.patch.object(main.process, 'get_introspection_data', autospec=True)
      def test_with_name(self, process_mock, get_mock):
          get_mock.return_value = mock.Mock(uuid=self.uuid)
          CONF.set_override('store_data', 'swift', 'processing')
          process_mock.return_value = json.dumps(self.introspection_data)
          res = self.app.get('/v1/introspection/name1/data')
          self.assertEqual(200, res.status_code)
          self.assertEqual(self.introspection_data,
                           json.loads(res.data.decode('utf-8')))
          get_mock.assert_called_once_with('name1', fields=['uuid'])
  
  
  class TestApiReapply(BaseAPITest):
  
      def setUp(self):
          super(TestApiReapply, self).setUp()
          self.rpc_get_client_mock = self.useFixture(
              fixtures.MockPatchObject(rpc, 'get_client', autospec=True)).mock
          self.client_mock = mock.MagicMock(spec=messaging.RPCClient)
          self.rpc_get_client_mock.return_value = self.client_mock
          CONF.set_override('store_data', 'swift', 'processing')
  
      def test_api_ok(self):
          self.app.post('/v1/introspection/%s/data/unprocessed' %
                        self.uuid)
          self.client_mock.call.assert_called_once_with({}, 'do_reapply',
                                                        node_uuid=self.uuid,
                                                        data=None)
  
      def test_user_data(self):
          res = self.app.post('/v1/introspection/%s/data/unprocessed' %
                              self.uuid, data='some data')
          self.assertEqual(400, res.status_code)
          message = json.loads(res.data.decode())['error']['message']
          self.assertIn('Invalid data: expected a JSON object', message)
          self.assertFalse(self.client_mock.call.called)
  
      def test_user_data_valid(self):
          data = {"foo": "bar"}
          res = self.app.post('/v1/introspection/%s/data/unprocessed' %
                              self.uuid, data=json.dumps(data))
          self.assertEqual(202, res.status_code)
          self.client_mock.call.assert_called_once_with({}, 'do_reapply',
                                                        node_uuid=self.uuid,
                                                        data=data)
  
      def test_get_introspection_data_error(self):
          exc = utils.Error('The store is crashed', code=404)
          self.client_mock.call.side_effect = exc
  
          res = self.app.post('/v1/introspection/%s/data/unprocessed' %
                              self.uuid)
  
          self.assertEqual(404, res.status_code)
          message = json.loads(res.data.decode())['error']['message']
          self.assertEqual(str(exc), message)
          self.client_mock.call.assert_called_once_with({}, 'do_reapply',
                                                        node_uuid=self.uuid,
                                                        data=None)
  
      def test_generic_error(self):
          exc = utils.Error('Oops', code=400)
          self.client_mock.call.side_effect = exc
  
          res = self.app.post('/v1/introspection/%s/data/unprocessed' %
                              self.uuid)
  
          self.assertEqual(400, res.status_code)
          message = json.loads(res.data.decode())['error']['message']
          self.assertEqual(str(exc), message)
          self.client_mock.call.assert_called_once_with({}, 'do_reapply',
                                                        node_uuid=self.uuid,
                                                        data=None)
  
      @mock.patch.object(ir_utils, 'get_node', autospec=True)
      def test_reapply_with_node_name(self, get_mock):
          get_mock.return_value = mock.Mock(uuid=self.uuid)
          self.app.post('/v1/introspection/%s/data/unprocessed' %
                        'fake-node')
          self.client_mock.call.assert_called_once_with({}, 'do_reapply',
                                                        node_uuid=self.uuid,
                                                        data=None)
          get_mock.assert_called_once_with('fake-node', fields=['uuid'])
  
  
  class TestApiRules(BaseAPITest):
      @mock.patch.object(rules, 'get_all')
      def test_get_all(self, get_all_mock):
          get_all_mock.return_value = [
              mock.Mock(spec=rules.IntrospectionRule,
                        **{'as_dict.return_value': {'uuid': 'foo'}}),
              mock.Mock(spec=rules.IntrospectionRule,
                        **{'as_dict.return_value': {'uuid': 'bar'}}),
          ]
  
          res = self.app.get('/v1/rules')
          self.assertEqual(200, res.status_code)
          self.assertEqual(
              {
                  'rules': [{'uuid': 'foo',
                             'links': [
                                 {'href': '/v1/rules/foo', 'rel': 'self'}
                             ]},
                            {'uuid': 'bar',
                             'links': [
                                 {'href': '/v1/rules/bar', 'rel': 'self'}
                             ]}]
              },
              json.loads(res.data.decode('utf-8')))
          get_all_mock.assert_called_once_with()
          for m in get_all_mock.return_value:
              m.as_dict.assert_called_with(short=True)
  
      @mock.patch.object(rules, 'delete_all')
      def test_delete_all(self, delete_all_mock):
          res = self.app.delete('/v1/rules')
          self.assertEqual(204, res.status_code)
          delete_all_mock.assert_called_once_with()
  
      @mock.patch.object(rules, 'create', autospec=True)
      def test_create(self, create_mock):
          data = {'uuid': self.uuid,
                  'conditions': 'cond',
                  'actions': 'act'}
          exp = data.copy()
          exp['description'] = None
          create_mock.return_value = mock.Mock(spec=rules.IntrospectionRule,
                                               **{'as_dict.return_value': exp})
  
          res = self.app.post('/v1/rules', data=json.dumps(data))
          self.assertEqual(201, res.status_code)
          create_mock.assert_called_once_with(conditions_json='cond',
                                              actions_json='act',
                                              uuid=self.uuid,
                                              description=None)
          self.assertEqual(exp, json.loads(res.data.decode('utf-8')))
  
      @mock.patch.object(rules, 'create', autospec=True)
      def test_create_api_less_1_6(self, create_mock):
          data = {'uuid': self.uuid,
                  'conditions': 'cond',
                  'actions': 'act'}
          exp = data.copy()
          exp['description'] = None
          create_mock.return_value = mock.Mock(spec=rules.IntrospectionRule,
                                               **{'as_dict.return_value': exp})
  
          headers = {conf_opts.VERSION_HEADER:
                     main._format_version((1, 5))}
  
          res = self.app.post('/v1/rules', data=json.dumps(data),
                              headers=headers)
          self.assertEqual(200, res.status_code)
          create_mock.assert_called_once_with(conditions_json='cond',
                                              actions_json='act',
                                              uuid=self.uuid,
                                              description=None)
          self.assertEqual(exp, json.loads(res.data.decode('utf-8')))
  
      @mock.patch.object(rules, 'create', autospec=True)
      def test_create_bad_uuid(self, create_mock):
          data = {'uuid': 'foo',
                  'conditions': 'cond',
                  'actions': 'act'}
  
          res = self.app.post('/v1/rules', data=json.dumps(data))
          self.assertEqual(400, res.status_code)
  
      @mock.patch.object(rules, 'get')
      def test_get_one(self, get_mock):
          get_mock.return_value = mock.Mock(spec=rules.IntrospectionRule,
                                            **{'as_dict.return_value':
                                               {'uuid': 'foo'}})
  
          res = self.app.get('/v1/rules/' + self.uuid)
          self.assertEqual(200, res.status_code)
          self.assertEqual({'uuid': 'foo',
                            'links': [
                                {'href': '/v1/rules/foo', 'rel': 'self'}
                            ]},
                           json.loads(res.data.decode('utf-8')))
          get_mock.assert_called_once_with(self.uuid)
          get_mock.return_value.as_dict.assert_called_once_with(short=False)
  
      @mock.patch.object(rules, 'delete')
      def test_delete_one(self, delete_mock):
          res = self.app.delete('/v1/rules/' + self.uuid)
          self.assertEqual(204, res.status_code)
          delete_mock.assert_called_once_with(self.uuid)
  
  
  class TestApiMisc(BaseAPITest):
      @mock.patch.object(node_cache, 'get_node', autospec=True)
      def test_404_expected(self, get_mock):
          get_mock.side_effect = utils.Error('boom', code=404)
          res = self.app.get('/v1/introspection/%s' % self.uuid)
          self.assertEqual(404, res.status_code)
          self.assertEqual('boom', _get_error(res))
  
      def test_404_unexpected(self):
          res = self.app.get('/v42')
          self.assertEqual(404, res.status_code)
          self.assertIn('not found', _get_error(res).lower())
  
      @mock.patch.object(node_cache, 'get_node', autospec=True)
      def test_500_with_debug(self, get_mock):
          CONF.set_override('debug', True)
          get_mock.side_effect = RuntimeError('boom')
          res = self.app.get('/v1/introspection/%s' % self.uuid)
          self.assertEqual(500, res.status_code)
          self.assertEqual('Internal server error (RuntimeError): boom',
                           _get_error(res))
  
      @mock.patch.object(node_cache, 'get_node', autospec=True)
      def test_500_without_debug(self, get_mock):
          CONF.set_override('debug', False)
          get_mock.side_effect = RuntimeError('boom')
          res = self.app.get('/v1/introspection/%s' % self.uuid)
          self.assertEqual(500, res.status_code)
          self.assertEqual('Internal server error',
                           _get_error(res))
  
  
  class TestApiVersions(BaseAPITest):
      def _check_version_present(self, res):
          self.assertEqual('%d.%d' % main.MINIMUM_API_VERSION,
                           res.headers.get(conf_opts.MIN_VERSION_HEADER))
          self.assertEqual('%d.%d' % main.CURRENT_API_VERSION,
                           res.headers.get(conf_opts.MAX_VERSION_HEADER))
  
      def test_root_endpoint(self):
          res = self.app.get("/")
          self.assertEqual(200, res.status_code)
          self._check_version_present(res)
          data = res.data.decode('utf-8')
          json_data = json.loads(data)
          expected = {"versions": [{
              "status": "CURRENT", "id": '%s.%s' % main.CURRENT_API_VERSION,
              "links": [{
                  "rel": "self",
                  "href": ("http://localhost/v%s" %
                           main.CURRENT_API_VERSION[0])
              }]
          }]}
          self.assertEqual(expected, json_data)
  
      @mock.patch.object(main.app.url_map, "iter_rules", autospec=True)
      def test_version_endpoint(self, mock_rules):
          mock_rules.return_value = ["/v1/endpoint1", "/v1/endpoint2/<uuid>",
                                     "/v1/endpoint1/<name>",
                                     "/v2/endpoint1", "/v1/endpoint3",
                                     "/v1/endpoint2/<uuid>/subpoint"]
          endpoint = "/v1"
          res = self.app.get(endpoint)
          self.assertEqual(200, res.status_code)
          self._check_version_present(res)
          json_data = json.loads(res.data.decode('utf-8'))
          expected = {u'resources': [
              {
                  u'name': u'endpoint1',
                  u'links': [{
                      u'rel': u'self',
                      u'href': u'http://localhost/v1/endpoint1'}]
              },
              {
                  u'name': u'endpoint3',
                  u'links': [{
                      u'rel': u'self',
                      u'href': u'http://localhost/v1/endpoint3'}]
              },
          ]}
          self.assertEqual(expected, json_data)
  
      def test_version_endpoint_invalid(self):
          endpoint = "/v-1"
          res = self.app.get(endpoint)
          self.assertEqual(404, res.status_code)
  
      def test_404_unexpected(self):
          # API version on unknown pages
          self._check_version_present(self.app.get('/v1/foobar'))
  
      @mock.patch.object(rpc, 'get_client', autospec=True)
      @mock.patch.object(node_cache, 'get_node', autospec=True)
      def test_usual_requests(self, get_mock, rpc_mock):
          client_mock = mock.MagicMock(spec=messaging.RPCClient)
          rpc_mock.return_value = client_mock
          get_mock.return_value = node_cache.NodeInfo(uuid=self.uuid,
                                                      started_at=42.0)
          # Successful
          self._check_version_present(
              self.app.post('/v1/introspection/%s' % self.uuid))
          # With error
          self._check_version_present(
              self.app.post('/v1/introspection/foobar'))
  
      def test_request_correct_version(self):
          headers = {conf_opts.VERSION_HEADER:
                     main._format_version(main.CURRENT_API_VERSION)}
          self._check_version_present(self.app.get('/', headers=headers))
  
      def test_request_unsupported_version(self):
          bad_version = (main.CURRENT_API_VERSION[0],
                         main.CURRENT_API_VERSION[1] + 1)
          headers = {conf_opts.VERSION_HEADER:
                     main._format_version(bad_version)}
          res = self.app.get('/', headers=headers)
          self._check_version_present(res)
          self.assertEqual(406, res.status_code)
          error = _get_error(res)
          self.assertIn('%d.%d' % bad_version, error)
          self.assertIn('%d.%d' % main.MINIMUM_API_VERSION, error)
          self.assertIn('%d.%d' % main.CURRENT_API_VERSION, error)
  
      def test_request_latest_version(self):
          headers = {conf_opts.VERSION_HEADER: 'latest'}
          res = self.app.get('/', headers=headers)
          self.assertEqual(200, res.status_code)
          self._check_version_present(res)
  
  
  class TestPlugins(unittest.TestCase):
      @mock.patch.object(example_plugin.ExampleProcessingHook,
                         'before_processing', autospec=True)
      @mock.patch.object(example_plugin.ExampleProcessingHook,
                         'before_update', autospec=True)
      def test_hook(self, mock_post, mock_pre):
          CONF.set_override('processing_hooks', 'example', 'processing')
          mgr = plugins_base.processing_hooks_manager()
          mgr.map_method('before_processing', 'introspection_data')
          mock_pre.assert_called_once_with(mock.ANY, 'introspection_data')
          mgr.map_method('before_update', 'node_info', {})
          mock_post.assert_called_once_with(mock.ANY, 'node_info', {})
  
      def test_manager_is_cached(self):
          self.assertIs(plugins_base.processing_hooks_manager(),
                        plugins_base.processing_hooks_manager())
  