142 lines
5.1 KiB
Python
142 lines
5.1 KiB
Python
# vim: tabstop=4 shiftwidth=4 softtabstop=4
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# Copyright 2010-2011 OpenStack Foundation
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# All Rights Reserved.
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#
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# Licensed under the Apache License, Version 2.0 (the "License"); you may
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# not use this file except in compliance with the License. You may obtain
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# a copy of the License at
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#
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# http://www.apache.org/licenses/LICENSE-2.0
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#
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# Unless required by applicable law or agreed to in writing, software
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# distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
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# WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
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# License for the specific language governing permissions and limitations
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# under the License.
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"""Base Test Case for all Unit Tests"""
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import contextlib
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import logging
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import os
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import eventlet.timeout
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import fixtures
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import mock
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from oslo.config import cfg
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import testtools
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from neutron.common import constants as const
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from neutron import manager
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from neutron.openstack.common.notifier import api as notifier_api
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from neutron.openstack.common.notifier import test_notifier
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from neutron.tests import post_mortem_debug
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CONF = cfg.CONF
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TRUE_STRING = ['True', '1']
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LOG_FORMAT = "%(asctime)s %(levelname)8s [%(name)s] %(message)s"
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def fake_use_fatal_exceptions(*args):
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return True
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class BaseTestCase(testtools.TestCase):
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def _cleanup_coreplugin(self):
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if manager.NeutronManager._instance:
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agent_notifiers = getattr(manager.NeutronManager._instance.plugin,
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'agent_notifiers', {})
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dhcp_agent_notifier = agent_notifiers.get(const.AGENT_TYPE_DHCP)
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if dhcp_agent_notifier:
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dhcp_agent_notifier._plugin = None
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manager.NeutronManager._instance = self._saved_instance
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def setup_coreplugin(self, core_plugin=None):
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self._saved_instance = manager.NeutronManager._instance
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self.addCleanup(self._cleanup_coreplugin)
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manager.NeutronManager._instance = None
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if core_plugin is not None:
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cfg.CONF.set_override('core_plugin', core_plugin)
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def _cleanup_test_notifier(self):
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test_notifier.NOTIFICATIONS = []
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def setup_notification_driver(self, notification_driver=None):
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# to reload the drivers
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self.addCleanup(notifier_api._reset_drivers)
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self.addCleanup(self._cleanup_test_notifier)
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notifier_api._reset_drivers()
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if notification_driver is None:
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notification_driver = [test_notifier.__name__]
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cfg.CONF.set_override("notification_driver", notification_driver)
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def setUp(self):
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super(BaseTestCase, self).setUp()
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# Configure this first to ensure pm debugging support for setUp()
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if os.environ.get('OS_POST_MORTEM_DEBUG') in TRUE_STRING:
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self.addOnException(post_mortem_debug.exception_handler)
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if os.environ.get('OS_DEBUG') in TRUE_STRING:
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_level = logging.DEBUG
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else:
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_level = logging.INFO
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capture_logs = os.environ.get('OS_LOG_CAPTURE') in TRUE_STRING
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if not capture_logs:
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logging.basicConfig(format=LOG_FORMAT, level=_level)
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self.log_fixture = self.useFixture(
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fixtures.FakeLogger(
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format=LOG_FORMAT,
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level=_level,
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nuke_handlers=capture_logs,
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))
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test_timeout = int(os.environ.get('OS_TEST_TIMEOUT', 0))
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if test_timeout == -1:
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test_timeout = 0
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if test_timeout > 0:
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self.useFixture(fixtures.Timeout(test_timeout, gentle=True))
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# If someone does use tempfile directly, ensure that it's cleaned up
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self.useFixture(fixtures.NestedTempfile())
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self.useFixture(fixtures.TempHomeDir())
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self.addCleanup(mock.patch.stopall)
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self.addCleanup(CONF.reset)
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if os.environ.get('OS_STDOUT_CAPTURE') in TRUE_STRING:
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stdout = self.useFixture(fixtures.StringStream('stdout')).stream
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self.useFixture(fixtures.MonkeyPatch('sys.stdout', stdout))
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if os.environ.get('OS_STDERR_CAPTURE') in TRUE_STRING:
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stderr = self.useFixture(fixtures.StringStream('stderr')).stream
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self.useFixture(fixtures.MonkeyPatch('sys.stderr', stderr))
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self.useFixture(fixtures.MonkeyPatch(
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'neutron.common.exceptions.NeutronException.use_fatal_exceptions',
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fake_use_fatal_exceptions))
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def config(self, **kw):
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"""Override some configuration values.
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The keyword arguments are the names of configuration options to
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override and their values.
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If a group argument is supplied, the overrides are applied to
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the specified configuration option group.
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All overrides are automatically cleared at the end of the current
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test by the fixtures cleanup process.
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"""
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group = kw.pop('group', None)
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for k, v in kw.iteritems():
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CONF.set_override(k, v, group)
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@contextlib.contextmanager
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def assert_max_execution_time(self, max_execution_time=5):
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with eventlet.timeout.Timeout(max_execution_time, False):
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yield
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return
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self.fail('Execution of this test timed out')
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