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# 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 fixtures
from oslo_context import context
class ClearRequestContext(fixtures.Fixture):
"""Clears any cached RequestContext
This resets RequestContext at the beginning and end of tests that
use this fixture to ensure that we have a clean slate for running
tests, and that we leave a clean slate for other tests that might
run later in the same process.
"""
def setUp(self) -> None:
super().setUp()
# we need to clear both when we start, and when we finish,
# because there might be other tests running that don't handle
# this correctly.
self._remove_cached_context()
self.addCleanup(self._remove_cached_context)
def _remove_cached_context(self) -> None:
"""Remove the thread-local context stored in the module."""
try:
del context._request_store.context
except AttributeError:
pass
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