charm-ceph-mon/unit_tests/test_ceph_utils.py

66 lines
2.6 KiB
Python

# 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
import test_utils
from hooks import utils
class CephUtilsTestCase(test_utils.CharmTestCase):
def setUp(self):
super().setUp()
@mock.patch.object(utils, 'related_units')
@mock.patch.object(utils, 'relation_ids')
def test_has_rbd_mirrors(self, _relation_ids, _related_units):
# NOTE(fnordahl): This optimization will not be useful until we get a
# resolution on LP: #1818245
# _goal_state.return_value = {'relations': {'rbd-mirror': None}}
# self.assertTrue(utils.has_rbd_mirrors())
# _goal_state.assert_called_once_with()
# _goal_state.side_effect = NotImplementedError
_relation_ids.return_value = ['arelid']
_related_units.return_value = ['aunit/0']
self.assertTrue(utils.has_rbd_mirrors())
_relation_ids.assert_called_once_with('rbd-mirror')
_related_units.assert_called_once_with('arelid')
@mock.patch.object(utils.subprocess, 'check_output')
def test_get_default_rbd_features(self, _check_output):
_check_output.return_value = ('a = b\nrbd_default_features = 61\n'
'c = d\n')
self.assertEquals(
utils.get_default_rbd_features(),
61)
_check_output.assert_called_once_with(
['ceph', '-c', '/dev/null', '--show-config'],
universal_newlines=True)
@mock.patch.object(utils, 'get_default_rbd_features')
@mock.patch.object(utils, 'has_rbd_mirrors')
@mock.patch.object(utils, 'config')
def test_get_rbd_features(self, _config, _has_rbd_mirrors,
_get_default_rbd_features):
_config.side_effect = \
lambda key: {'default-rbd-features': 42}.get(key, None)
self.assertEquals(utils.get_rbd_features(), 42)
_has_rbd_mirrors.return_value = True
_get_default_rbd_features.return_value = 61
_config.side_effect = lambda key: {}.get(key, None)
self.assertEquals(utils.get_rbd_features(), 125)
_has_rbd_mirrors.return_value = False
self.assertEquals(utils.get_rbd_features(), None)