# 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_messaging.rpc import dispatcher as rpc
import six

from senlin.common import exception as exc
from senlin.engine import environment
from senlin.engine import service
from senlin.tests.unit.common import base
from senlin.tests.unit.common import utils


class PolicyTypeTest(base.SenlinTestCase):

    def setUp(self):
        super(PolicyTypeTest, self).setUp()
        self.ctx = utils.dummy_context(project='policy_type_test_project')
        self.eng = service.EngineService('host-a', 'topic-a')

    @mock.patch.object(environment, 'global_env')
    def test_policy_type_list(self, mock_env):
        x_env = mock.Mock()
        x_env.get_policy_types.return_value = [{'foo': 'bar'}]
        mock_env.return_value = x_env

        types = self.eng.policy_type_list(self.ctx)
        self.assertEqual([{'foo': 'bar'}], types)
        mock_env.assert_called_once_with()
        x_env.get_policy_types.assert_called_once_with()

    @mock.patch.object(environment, 'global_env')
    def test_policy_type_get(self, mock_env):
        x_env = mock.Mock()
        x_policy_type = mock.Mock()
        x_policy_type.get_schema.return_value = {'foo': 'bar'}
        x_env.get_policy.return_value = x_policy_type
        mock_env.return_value = x_env

        result = self.eng.policy_type_get(self.ctx, 'FAKE_TYPE')

        self.assertEqual(
            {
                'name': 'FAKE_TYPE',
                'schema': {'foo': 'bar'},
            },
            result)
        mock_env.assert_called_once_with()
        x_env.get_policy.assert_called_once_with('FAKE_TYPE')
        x_policy_type.get_schema.assert_called_once_with()

    @mock.patch.object(environment, 'global_env')
    def test_policy_type_get_nonexist(self, mock_env):
        x_env = mock.Mock()
        err = exc.ResourceNotFound(type='policy_type', id='FAKE_TYPE')
        x_env.get_policy.side_effect = err
        mock_env.return_value = x_env

        ex = self.assertRaises(rpc.ExpectedException,
                               self.eng.policy_type_get,
                               self.ctx, 'FAKE_TYPE')

        self.assertEqual(exc.ResourceNotFound, ex.exc_info[0])
        self.assertEqual('The policy_type (FAKE_TYPE) could not be found.',
                         six.text_type(ex.exc_info[1]))
        mock_env.assert_called_once_with()
        x_env.get_policy.assert_called_once_with('FAKE_TYPE')
