/usr/lib/python2.7/dist-packages/oslo_versionedobjects/test.py is in python-oslo.versionedobjects 1.17.0-2.
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# Administrator of the National Aeronautics and Space Administration.
# 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.
"""Base classes for our unit tests.
Some black magic for inline callbacks.
"""
import eventlet
eventlet.monkey_patch(os=False)
import inspect
import mock
import os
import fixtures
from oslo_concurrency import lockutils
from oslo_config import cfg
from oslo_config import fixture as config_fixture
from oslo_log.fixture import logging_error
from oslotest import moxstubout
import six
import testtools
from oslo_versionedobjects.tests import obj_fixtures
CONF = cfg.CONF
class TestingException(Exception):
pass
class skipIf(object):
def __init__(self, condition, reason):
self.condition = condition
self.reason = reason
def __call__(self, func_or_cls):
condition = self.condition
reason = self.reason
if inspect.isfunction(func_or_cls):
@six.wraps(func_or_cls)
def wrapped(*args, **kwargs):
if condition:
raise testtools.TestCase.skipException(reason)
return func_or_cls(*args, **kwargs)
return wrapped
elif inspect.isclass(func_or_cls):
orig_func = getattr(func_or_cls, 'setUp')
@six.wraps(orig_func)
def new_func(self, *args, **kwargs):
if condition:
raise testtools.TestCase.skipException(reason)
orig_func(self, *args, **kwargs)
func_or_cls.setUp = new_func
return func_or_cls
else:
raise TypeError('skipUnless can be used only with functions or '
'classes')
def _patch_mock_to_raise_for_invalid_assert_calls():
def raise_for_invalid_assert_calls(wrapped):
def wrapper(_self, name):
valid_asserts = [
'assert_called_with',
'assert_called_once_with',
'assert_has_calls',
'assert_any_calls']
if name.startswith('assert') and name not in valid_asserts:
raise AttributeError('%s is not a valid mock assert method'
% name)
return wrapped(_self, name)
return wrapper
mock.Mock.__getattr__ = raise_for_invalid_assert_calls(
mock.Mock.__getattr__)
# NOTE(gibi): needs to be called only once at import time
# to patch the mock lib
_patch_mock_to_raise_for_invalid_assert_calls()
class TestCase(testtools.TestCase):
"""Test case base class for all unit tests."""
REQUIRES_LOCKING = False
TIMEOUT_SCALING_FACTOR = 1
def setUp(self):
"""Run before each test method to initialize test environment."""
super(TestCase, self).setUp()
self.useFixture(obj_fixtures.Timeout(
os.environ.get('OS_TEST_TIMEOUT', 0),
self.TIMEOUT_SCALING_FACTOR))
self.useFixture(fixtures.NestedTempfile())
self.useFixture(fixtures.TempHomeDir())
self.useFixture(obj_fixtures.TranslationFixture())
self.useFixture(logging_error.get_logging_handle_error_fixture())
self.useFixture(obj_fixtures.OutputStreamCapture())
self.useFixture(obj_fixtures.StandardLogging())
# NOTE(sdague): because of the way we were using the lock
# wrapper we eneded up with a lot of tests that started
# relying on global external locking being set up for them. We
# consider all of these to be *bugs*. Tests should not require
# global external locking, or if they do, they should
# explicitly set it up themselves.
#
# The following REQUIRES_LOCKING class parameter is provided
# as a bridge to get us there. No new tests should be added
# that require it, and existing classes and tests should be
# fixed to not need it.
if self.REQUIRES_LOCKING:
lock_path = self.useFixture(fixtures.TempDir()).path
self.fixture = self.useFixture(
config_fixture.Config(lockutils.CONF))
self.fixture.config(lock_path=lock_path,
group='oslo_concurrency')
# NOTE(blk-u): WarningsFixture must be after the Database fixture
# because sqlalchemy-migrate messes with the warnings filters.
self.useFixture(obj_fixtures.WarningsFixture())
mox_fixture = self.useFixture(moxstubout.MoxStubout())
self.mox = mox_fixture.mox
self.stubs = mox_fixture.stubs
self.addCleanup(self._clear_attrs)
self.useFixture(fixtures.EnvironmentVariable('http_proxy'))
def _clear_attrs(self):
# Delete attributes that don't start with _ so they don't pin
# memory around unnecessarily for the duration of the test
# suite
for key in [k for k in self.__dict__.keys() if k[0] != '_']:
del self.__dict__[key]
def assertPublicAPISignatures(self, baseinst, inst):
def get_public_apis(inst):
methods = {}
for (name, value) in inspect.getmembers(inst, inspect.ismethod):
if name.startswith("_"):
continue
methods[name] = value
return methods
baseclass = baseinst.__class__.__name__
basemethods = get_public_apis(baseinst)
implmethods = get_public_apis(inst)
extranames = []
for name in sorted(implmethods.keys()):
if name not in basemethods:
extranames.append(name)
self.assertEqual([], extranames,
"public APIs not listed in base class %s" %
baseclass)
for name in sorted(implmethods.keys()):
baseargs = inspect.getargspec(basemethods[name])
implargs = inspect.getargspec(implmethods[name])
self.assertEqual(baseargs, implargs,
"%s args don't match base class %s" %
(name, baseclass))
class APICoverage(object):
cover_api = None
def test_api_methods(self):
self.assertTrue(self.cover_api is not None)
api_methods = [x for x in dir(self.cover_api)
if not x.startswith('_')]
test_methods = [x[5:] for x in dir(self)
if x.startswith('test_')]
self.assertThat(
test_methods,
testtools.matchers.ContainsAll(api_methods))
class BaseHookTestCase(TestCase):
def assert_has_hook(self, expected_name, func):
self.assertTrue(hasattr(func, '__hook_name__'))
self.assertEqual(expected_name, func.__hook_name__)
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