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OpenStack Study: base.py**** CubicPower OpenStack Study ****
# vim: tabstop=4 shiftwidth=4 softtabstop=4 # Copyright 2010-2011 OpenStack Foundation # 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 Test Case for all Unit Tests""" import contextlib import logging import os import sys import eventlet.timeout import fixtures import mock from oslo.config import cfg import testtools from neutron.common import constants as const from neutron import manager from neutron.openstack.common.notifier import api as notifier_api from neutron.openstack.common.notifier import test_notifier from neutron.tests import post_mortem_debug CONF = cfg.CONF TRUE_STRING = ['True', '1'] LOG_FORMAT = "%(asctime)s %(levelname)8s [%(name)s] %(message)s"
**** CubicPower OpenStack Study **** def fake_use_fatal_exceptions(*args): return True
**** CubicPower OpenStack Study **** class BaseTestCase(testtools.TestCase):
**** CubicPower OpenStack Study **** def _cleanup_coreplugin(self): if manager.NeutronManager._instance: agent_notifiers = getattr(manager.NeutronManager._instance.plugin, 'agent_notifiers', {}) dhcp_agent_notifier = agent_notifiers.get(const.AGENT_TYPE_DHCP) if dhcp_agent_notifier: dhcp_agent_notifier._plugin = None manager.NeutronManager._instance = self._saved_instance
**** CubicPower OpenStack Study **** def setup_coreplugin(self, core_plugin=None): self._saved_instance = manager.NeutronManager._instance self.addCleanup(self._cleanup_coreplugin) manager.NeutronManager._instance = None if core_plugin is not None: cfg.CONF.set_override('core_plugin', core_plugin)
**** CubicPower OpenStack Study **** def _cleanup_test_notifier(self): test_notifier.NOTIFICATIONS = []
**** CubicPower OpenStack Study **** def setup_notification_driver(self, notification_driver=None): # to reload the drivers self.addCleanup(notifier_api._reset_drivers) self.addCleanup(self._cleanup_test_notifier) notifier_api._reset_drivers() if notification_driver is None: notification_driver = [test_notifier.__name__] cfg.CONF.set_override("notification_driver", notification_driver)
**** CubicPower OpenStack Study **** def setUp(self): super(BaseTestCase, self).setUp() # Configure this first to ensure pm debugging support for setUp() if os.environ.get('OS_POST_MORTEM_DEBUG') in TRUE_STRING: self.addOnException(post_mortem_debug.exception_handler) if os.environ.get('OS_DEBUG') in TRUE_STRING: _level = logging.DEBUG else: _level = logging.INFO capture_logs = os.environ.get('OS_LOG_CAPTURE') in TRUE_STRING if not capture_logs: logging.basicConfig(format=LOG_FORMAT, level=_level) self.log_fixture = self.useFixture( fixtures.FakeLogger( format=LOG_FORMAT, level=_level, nuke_handlers=capture_logs, )) test_timeout = int(os.environ.get('OS_TEST_TIMEOUT', 0)) if test_timeout == -1: test_timeout = 0 if test_timeout > 0: self.useFixture(fixtures.Timeout(test_timeout, gentle=True)) # If someone does use tempfile directly, ensure that it's cleaned up self.useFixture(fixtures.NestedTempfile()) self.useFixture(fixtures.TempHomeDir()) self.temp_dir = self.useFixture(fixtures.TempDir()).path cfg.CONF.set_override('state_path', self.temp_dir) self.addCleanup(mock.patch.stopall) self.addCleanup(CONF.reset) if os.environ.get('OS_STDOUT_CAPTURE') in TRUE_STRING: stdout = self.useFixture(fixtures.StringStream('stdout')).stream self.useFixture(fixtures.MonkeyPatch('sys.stdout', stdout)) if os.environ.get('OS_STDERR_CAPTURE') in TRUE_STRING: stderr = self.useFixture(fixtures.StringStream('stderr')).stream self.useFixture(fixtures.MonkeyPatch('sys.stderr', stderr)) self.useFixture(fixtures.MonkeyPatch( 'neutron.common.exceptions.NeutronException.use_fatal_exceptions', fake_use_fatal_exceptions)) if sys.version_info < (2, 7) and getattr(self, 'fmt', '') == 'xml': raise self.skipException('XML Testing Skipped in Py26')
**** CubicPower OpenStack Study **** def config(self, **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 fixtures cleanup process. """ group = kw.pop('group', None) for k, v in kw.iteritems(): CONF.set_override(k, v, group) @contextlib.contextmanager
**** CubicPower OpenStack Study **** def assert_max_execution_time(self, max_execution_time=5): with eventlet.timeout.Timeout(max_execution_time, False): yield return self.fail('Execution of this test timed out')
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