# -*- coding: utf-8 -*-

# Copyright (c) 2015 OpenStack Foundation
# All 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.

from oslo_utils import encodeutils
from testtools import testcase

import tooz
from tooz import coordination
from tooz import tests


class TestMySQLDriver(testcase.TestCase):

    def _create_coordinator(self, url):

        def _safe_stop(coord):
            try:
                coord.stop()
            except tooz.ToozError as e:
                message = encodeutils.exception_to_unicode(e)
                if (message != 'Can not stop a driver which has not'
                               ' been started'):
                    raise

        coord = coordination.get_coordinator(url,
                                             tests.get_random_uuid())
        self.addCleanup(_safe_stop, coord)
        return coord

    def test_connect_failure_invalid_hostname_provided(self):
        c = self._create_coordinator("mysql://invalidhost/test")
        self.assertRaises(coordination.ToozConnectionError, c.start)

    def test_connect_failure_invalid_port_provided(self):
        c = self._create_coordinator("mysql://localhost:54/test")
        self.assertRaises(coordination.ToozConnectionError, c.start)

    def test_connect_failure_invalid_hostname_and_port_provided(self):
        c = self._create_coordinator("mysql://invalidhost:54/test")
        self.assertRaises(coordination.ToozConnectionError, c.start)