Juju Charm - Cinder backup
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# 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 mock import patch
with patch('cinder_backup_utils.register_configs'):
import cinder_backup_hooks as hooks
from test_utils import (
CharmTestCase
)
TO_PATCH = [
# cinder_utils
'ensure_ceph_keyring',
'register_configs',
'restart_map',
'set_ceph_env_variables',
'is_request_complete',
'send_request_if_needed',
'CONFIGS',
# charmhelpers.core.hookenv
'config',
'relation_ids',
'relation_set',
'service_name',
'service_restart',
'log',
# charmhelpers.core.host
'apt_install',
'apt_update',
# charmhelpers.contrib.hahelpers.cluster_utils
'execd_preinstall',
'delete_keyring'
]
class TestCinderBackupHooks(CharmTestCase):
def setUp(self):
super(TestCinderBackupHooks, self).setUp(hooks, TO_PATCH)
self.config.side_effect = self.test_config.get
@patch('charmhelpers.core.hookenv.config')
@patch('os.mkdir')
def test_ceph_joined(self, mkdir, mock_config):
"""It correctly prepares for a ceph changed hook"""
with patch('os.path.isdir') as isdir:
isdir.return_value = False
hooks.hooks.execute(['hooks/ceph-relation-joined'])
mkdir.assert_called_with('/etc/ceph')
@patch('charmhelpers.core.hookenv.config')
def test_ceph_changed_no_key(self, mock_config):
"""It does nothing when ceph key is not available"""
self.CONFIGS.complete_contexts.return_value = ['']
hooks.hooks.execute(['hooks/ceph-relation-changed'])
m = 'ceph relation incomplete. Peer not ready?'
self.log.assert_called_with(m)
@patch('charmhelpers.core.hookenv.config')
def test_ceph_changed(self, mock_config):
"""It ensures ceph assets created on ceph changed"""
self.is_request_complete.return_value = True
self.CONFIGS.complete_contexts.return_value = ['ceph']
self.service_name.return_value = 'cinder-backup'
self.ensure_ceph_keyring.return_value = True
hooks.hooks.execute(['hooks/ceph-relation-changed'])
self.ensure_ceph_keyring.assert_called_with(service='cinder-backup',
user='cinder',
group='cinder')
self.assertTrue(self.CONFIGS.write_all.called)
self.set_ceph_env_variables.assert_called_with(service='cinder-backup')
@patch.object(hooks, 'get_ceph_request')
@patch('charmhelpers.core.hookenv.config')
def test_ceph_changed_newrq(self, mock_config, mock_get_ceph_request):
"""It ensures ceph assets created on ceph changed"""
mock_get_ceph_request.return_value = 'cephreq'
self.is_request_complete.return_value = False
self.CONFIGS.complete_contexts.return_value = ['ceph']
self.service_name.return_value = 'cinder-backup'
self.ensure_ceph_keyring.return_value = True
hooks.hooks.execute(['hooks/ceph-relation-changed'])
self.ensure_ceph_keyring.assert_called_with(service='cinder-backup',
user='cinder',
group='cinder')
self.send_request_if_needed.assert_called_with('cephreq')
@patch('charmhelpers.core.hookenv.config')
def test_ceph_changed_no_keys(self, mock_config):
"""It ensures ceph assets created on ceph changed"""
self.CONFIGS.complete_contexts.return_value = ['ceph']
self.service_name.return_value = 'cinder-backup'
self.is_request_complete.return_value = True
self.ensure_ceph_keyring.return_value = False
hooks.hooks.execute(['hooks/ceph-relation-changed'])
# NOTE(jamespage): If ensure_ceph keyring fails, then
# the hook should just exit 0 and return.
self.assertTrue(self.log.called)
self.assertFalse(self.CONFIGS.write_all.called)