# Copyright 2016 Canonical Ltd
#
# 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 __future__ import absolute_import
from __future__ import print_function

import contextlib
import unittest

import mock

import charm.openstack.designate as designate


def FakeConfig(init_dict):

    def _config(key=None):
        return init_dict[key] if key else init_dict

    return _config


class Helper(unittest.TestCase):

    def setUp(self):
        self._patches = {}
        self._patches_start = {}
        self.ch_config_patch = mock.patch('charmhelpers.core.hookenv.config')
        self.ch_config = self.ch_config_patch.start()
        self.ch_config.side_effect = lambda: {'ssl_param': None}

    def tearDown(self):
        for k, v in self._patches.items():
            v.stop()
            setattr(self, k, None)
        self._patches = None
        self._patches_start = None
        self.ch_config_patch.stop()

    def patch(self, obj, attr, return_value=None, **kwargs):
        mocked = mock.patch.object(obj, attr, **kwargs)
        self._patches[attr] = mocked
        started = mocked.start()
        started.return_value = return_value
        self._