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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.
"""A fixture to wrap the session constructor for use with Betamax."""
from functools import partial
import betamax
import fixtures
import mock
import requests
from keystoneauth1.fixture import hooks
from keystoneauth1.fixture import serializer as yaml_serializer
from keystoneauth1 import session
class BetamaxFixture(fixtures.Fixture):
def __init__(self, cassette_name, cassette_library_dir=None,
serializer=None, record=False,
pre_record_hook=hooks.pre_record_hook):
self.cassette_library_dir = cassette_library_dir
self.record = record
self.cassette_name = cassette_name
if not serializer:
serializer = yaml_serializer.YamlJsonSerializer
self.serializer = serializer
betamax.Betamax.register_serializer(serializer)
self.pre_record_hook = pre_record_hook
def setUp(self):
super(BetamaxFixture, self).setUp()
self.mockpatch = mock.patch.object(
session, '_construct_session',
partial(_construct_session_with_betamax, self))
self.mockpatch.start()
# Unpatch during cleanup
self.addCleanup(self.mockpatch.stop)
def _construct_session_with_betamax(fixture, session_obj=None):
# NOTE(morganfainberg): This function should contain the logic of
# keystoneauth1.session._construct_session as it replaces the
# _construct_session function to apply betamax magic to the requests
# session object.
if not session_obj:
session_obj = requests.Session()
# Use TCPKeepAliveAdapter to fix bug 1323862
for scheme in list(session_obj.adapters.keys()):
session_obj.mount(scheme, session.TCPKeepAliveAdapter())
with betamax.Betamax.configure() as config:
config.before_record(callback=fixture.pre_record_hook)
fixture.recorder = betamax.Betamax(
session_obj, cassette_library_dir=fixture.cassette_library_dir)
record = 'none'
serializer = None
if fixture.record in ['once', 'all', 'new_episodes']:
record = fixture.record
if fixture.serializer:
serializer = fixture.serializer.name
fixture.recorder.use_cassette(fixture.cassette_name,
serialize_with=serializer,
record=record)
fixture.recorder.start()
fixture.addCleanup(fixture.recorder.stop)
return session_obj
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