Files
charm-cinder-ceph/unit_tests/test_utils.py
Hervé Beraud 455cc94d0f Use unittest.mock instead of mock
The mock third party library was needed for mock support in py2
runtimes. Since we now only support py36 and later, we can use the
standard lib unittest.mock module instead.

Change-Id: I7e645c6fcc302ed152c57e997c32ebe658e4d0bd
2020-06-08 22:37:47 +02:00

115 lines
3.0 KiB
Python

# 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.
import logging
import unittest
import os
import yaml
from unittest.mock import patch
def load_config():
'''
Walk backwords from __file__ looking for config.yaml, load and return the
'options' section'
'''
config = None
f = __file__
while config is None:
d = os.path.dirname(f)
if os.path.isfile(os.path.join(d, 'config.yaml')):
config = os.path.join(d, 'config.yaml')
break
f = d
if not config:
logging.error('Could not find config.yaml in any parent directory '
'of %s. ' % __file__)
raise Exception
return yaml.safe_load(open(config).read())['options']
def get_default_config():
'''
Load default charm config from config.yaml return as a dict.
If no default is set in config.yaml, its value is None.
'''
default_config = {}
config = load_config()
for k, v in config.items():
if 'default' in v:
default_config[k] = v['default']
else:
default_config[k] = None
return default_config
class CharmTestCase(unittest.TestCase):
def setUp(self, obj, patches):
super(CharmTestCase, self).setUp()
self.patches = patches
self.obj = obj
self.test_config = TestConfig()
self.test_relation = TestRelation()
self.patch_all()
def patch(self, method):
_m = patch.object(self.obj, method)
mock = _m.start()
self.addCleanup(_m.stop)
return mock
def patch_all(self):
for method in self.patches:
setattr(self, method, self.patch(method))
class TestConfig(object):
def __init__(self):
self.config = get_default_config()
def get(self, attr):
try:
return self.config[attr]
except KeyError:
return None
def get_all(self):
return self.config
def set(self, attr, value):
if attr not in self.config:
raise KeyError
self.config[attr] = value
class TestRelation(object):
def __init__(self, relation_data={}):
self.relation_data = relation_data
def set(self, relation_data):
self.relation_data = relation_data
def get(self, attr=None, unit=None, rid=None):
if attr is None:
return self.relation_data
elif attr in self.relation_data:
return self.relation_data[attr]
return None