# Copyright 2017 AT&T Intellectual Property.  All other rights reserved.
#
# 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 os
import yaml

from falcon import testing as falcon_testing

from deckhand import service
from deckhand.tests.unit import base as test_base
from deckhand.tests.unit import dh_fixtures


class BaseControllerTest(test_base.DeckhandWithDBTestCase,
                         falcon_testing.TestCase):
    """Base class for unit testing falcon controllers."""

    def setUp(self):
        super(BaseControllerTest, self).setUp()
        self.app = falcon_testing.TestClient(
            service.deckhand_app_factory(None))
        self.policy = self.useFixture(dh_fixtures.RealPolicyFixture())
        # NOTE: development_mode allows these unit tests to get around
        # Keystone authentication.
        self.useFixture(dh_fixtures.ConfPatcher(development_mode=True))

    def _read_data(self, file_name):
        # Reads data from a file in the resources directory
        dir_path = os.path.dirname(os.path.realpath(__file__))
        test_yaml_path = os.path.abspath(os.path.join(
            dir_path, os.pardir, 'resources', file_name + '.yaml'))

        with open(test_yaml_path, 'r') as yaml_file:
            yaml_data = yaml_file.read()
        self.data = yaml.safe_load(yaml_data)