manila/manila/tests/utils.py

77 lines
2.5 KiB
Python

# Copyright 2011 OpenStack LLC
# Copyright 2015 Mirantic, Inc.
# 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.
import os
from oslo_config import cfg
from manila import context
from manila import utils
CONF = cfg.CONF
def get_test_admin_context():
return context.get_admin_context()
def is_manila_installed():
if os.path.exists('../../manila.manila.egg-info'):
return True
else:
return False
class create_temp_config_with_opts(object):
"""Creates temporary config file with provided opts and values.
usage:
data = {'FOO_GROUP': {'foo_opt': 'foo_value'}}
assert CONF.FOO_GROUP.foo_opt != 'foo_value'
with create_temp_config_with_opts(data):
assert CONF.FOO_GROUP.foo_opt == 'foo_value'
assert CONF.FOO_GROUP.foo_opt != 'foo_value'
:param data: dict -- expected dict with two layers, first is name of
config group and second is opts with values. Example:
{'DEFAULT': {'foo_opt': 'foo_v'}, 'BAR_GROUP': {'bar_opt': 'bar_v'}}
"""
def __init__(self, data):
self.data = data
def __enter__(self):
config_filename = 'fake_config'
with utils.tempdir() as tmpdir:
tmpfilename = os.path.join(tmpdir, '%s.conf' % config_filename)
with open(tmpfilename, "w") as configfile:
for group, opts in self.data.items():
configfile.write("""[%s]\n""" % group)
for opt, value in opts.items():
configfile.write(
"""%(k)s = %(v)s\n""" % {'k': opt, 'v': value})
configfile.write("""\n""")
# Add config file with updated opts
CONF.default_config_files = [configfile.name]
# Reload config instance to use redefined opts
CONF.reload_config_files()
return CONF
def __exit__(self, exc_type, exc_value, exc_traceback):
return False # do not suppress errors