zaqar/marconi/tests/base.py
Flavio Percoco a828ec96cd Isolate tests a bit more
This patch isolates mongodb tests and adds new `shortcut-methods` to
base clases in order to make it easier for subclasses to access conf
instances, override them or even hook them.

Change-Id: I8fe05bf383198244616499adb60480859f1ec7c6
2013-11-21 14:38:11 +01:00

91 lines
2.8 KiB
Python

# Copyright (c) 2013 Rackspace Hosting, Inc.
#
# 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
import fixtures
from oslo.config import cfg
import testtools
class TestBase(testtools.TestCase):
"""Child class of testtools.TestCase for testing Marconi.
Inherit from this and write your test methods. If the child class defines
a prepare(self) method, this method will be called before executing each
test method.
"""
config_file = None
def setUp(self):
super(TestBase, self).setUp()
self.useFixture(fixtures.FakeLogger('marconi'))
# NOTE(kgriffs): Don't monkey-patch stdout since it breaks
# debugging with pdb.
stderr = self.useFixture(fixtures.StringStream('stderr')).stream
self.useFixture(fixtures.MonkeyPatch('sys.stderr', stderr))
if self.config_file:
self.conf = self.load_conf(self.config_file)
else:
self.conf = cfg.ConfigOpts()
@classmethod
def conf_path(cls, filename):
"""Returns the full path to the specified Marconi conf file.
:param filename: Name of the conf file to find (e.g.,
'wsgi_memory.conf')
"""
if os.path.exists(filename):
return filename
return os.path.join(os.environ["MARCONI_TESTS_CONFIGS_DIR"], filename)
@classmethod
def load_conf(cls, filename):
"""Loads `filename` configuration file.
:param filename: Name of the conf file to find (e.g.,
'wsgi_memory.conf')
:returns: Project's config object.
"""
conf = cfg.ConfigOpts()
conf(args=[], default_config_files=[cls.conf_path(filename)])
return conf
def config(self, group=None, **kw):
"""Override some configuration values.
The keyword arguments are the names of configuration options to
override and their values.
If a group argument is supplied, the overrides are applied to
the specified configuration option group.
All overrides are automatically cleared at the end of the current
test by the tearDown() method.
"""
for k, v in kw.iteritems():
self.conf.set_override(k, v, group)
def _my_dir(self):
return os.path.abspath(os.path.dirname(__file__))