9e247277e2
TestL3GwModeMixin can fail randomly because it doesn't initialize core_plugin and can be run random core plugin depending on execution order of tests. It also fails with core plugin uninitialized when it is run without other tests. This patch refactors the setup code of core plugin and apply it to the related tests. This patch reveled the same bug of test_metaplugin.py which is also fixed by this patch. Closes-bug: #1273259 Change-Id: I3c1d4d8b3d69262b89c7747daa8267bf2c8e7f6b
119 lines
4.0 KiB
Python
119 lines
4.0 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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from oslo.config import cfg
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import testtools
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from neutron import manager
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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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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 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(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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