# Copyright 2019 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.

import mock

from ovsdb_cms import provides

import charms_openstack.test_utils as test_utils


_hook_args = {}


class TestOVSDBCMSProvides(test_utils.PatchHelper):

    def setUp(self):
        super().setUp()
        self.target = provides.OVSDBCMSProvides('some-relation', [])
        self._patches = {}
        self._patches_start = {}

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

    def patch_target(self, attr, return_value=None):
        mocked = mock.patch.object(self.target, attr)
        self._patches[attr] = mocked
        started = mocked.start()
        started.return_value = return_value
        self._patches_start[attr] = started
        setattr(self, attr, started)

    def test_client_remote_addrs(self):
        self.patch_target('_remote_addrs')
        self.target.client_remote_addrs
        self._remote_addrs.assert_called_once_with('cms-client-bound-address')