mirror of
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234 lines
8.2 KiB
Python
234 lines
8.2 KiB
Python
# -*- coding: utf-8 -*-
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# Copyright 2017 New Vector Ltd.
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#
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# Licensed under the Apache License, Version 2.0 (the "License");
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# you may not use this file except in compliance with the License.
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# You may obtain 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,
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# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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# See the License for the specific language governing permissions and
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# limitations under the License.
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import time
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from mock import Mock
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import signedjson.key
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import signedjson.sign
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from twisted.internet import defer, reactor
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from synapse.api.errors import SynapseError
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from synapse.crypto import keyring
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from synapse.util import Clock, logcontext
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from synapse.util.logcontext import LoggingContext
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from tests import unittest, utils
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class MockPerspectiveServer(object):
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def __init__(self):
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self.server_name = "mock_server"
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self.key = signedjson.key.generate_signing_key(0)
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def get_verify_keys(self):
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vk = signedjson.key.get_verify_key(self.key)
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return {
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"%s:%s" % (vk.alg, vk.version): vk,
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}
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def get_signed_key(self, server_name, verify_key):
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key_id = "%s:%s" % (verify_key.alg, verify_key.version)
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res = {
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"server_name": server_name,
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"old_verify_keys": {},
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"valid_until_ts": time.time() * 1000 + 3600,
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"verify_keys": {
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key_id: {
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"key": signedjson.key.encode_verify_key_base64(verify_key)
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}
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}
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}
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signedjson.sign.sign_json(res, self.server_name, self.key)
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return res
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class KeyringTestCase(unittest.TestCase):
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@defer.inlineCallbacks
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def setUp(self):
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self.mock_perspective_server = MockPerspectiveServer()
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self.http_client = Mock()
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self.hs = yield utils.setup_test_homeserver(
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handlers=None,
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http_client=self.http_client,
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)
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self.hs.config.perspectives = {
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self.mock_perspective_server.server_name:
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self.mock_perspective_server.get_verify_keys()
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}
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def check_context(self, _, expected):
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self.assertEquals(
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getattr(LoggingContext.current_context(), "request", None),
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expected
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)
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@defer.inlineCallbacks
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def test_wait_for_previous_lookups(self):
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sentinel_context = LoggingContext.current_context()
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kr = keyring.Keyring(self.hs)
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lookup_1_deferred = defer.Deferred()
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lookup_2_deferred = defer.Deferred()
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with LoggingContext("one") as context_one:
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context_one.request = "one"
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wait_1_deferred = kr.wait_for_previous_lookups(
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["server1"],
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{"server1": lookup_1_deferred},
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)
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# there were no previous lookups, so the deferred should be ready
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self.assertTrue(wait_1_deferred.called)
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# ... so we should have preserved the LoggingContext.
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self.assertIs(LoggingContext.current_context(), context_one)
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wait_1_deferred.addBoth(self.check_context, "one")
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with LoggingContext("two") as context_two:
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context_two.request = "two"
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# set off another wait. It should block because the first lookup
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# hasn't yet completed.
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wait_2_deferred = kr.wait_for_previous_lookups(
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["server1"],
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{"server1": lookup_2_deferred},
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)
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self.assertFalse(wait_2_deferred.called)
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# ... so we should have reset the LoggingContext.
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self.assertIs(LoggingContext.current_context(), sentinel_context)
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wait_2_deferred.addBoth(self.check_context, "two")
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# let the first lookup complete (in the sentinel context)
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lookup_1_deferred.callback(None)
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# now the second wait should complete and restore our
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# loggingcontext.
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yield wait_2_deferred
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@defer.inlineCallbacks
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def test_verify_json_objects_for_server_awaits_previous_requests(self):
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clock = Clock(reactor)
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key1 = signedjson.key.generate_signing_key(1)
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kr = keyring.Keyring(self.hs)
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json1 = {}
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signedjson.sign.sign_json(json1, "server10", key1)
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persp_resp = {
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"server_keys": [
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self.mock_perspective_server.get_signed_key(
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"server10",
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signedjson.key.get_verify_key(key1)
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),
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]
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}
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persp_deferred = defer.Deferred()
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@defer.inlineCallbacks
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def get_perspectives(**kwargs):
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self.assertEquals(
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LoggingContext.current_context().request, "11",
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)
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with logcontext.PreserveLoggingContext():
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yield persp_deferred
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defer.returnValue(persp_resp)
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self.http_client.post_json.side_effect = get_perspectives
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with LoggingContext("11") as context_11:
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context_11.request = "11"
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# start off a first set of lookups
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res_deferreds = kr.verify_json_objects_for_server(
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[("server10", json1),
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("server11", {})
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]
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)
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# the unsigned json should be rejected pretty quickly
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self.assertTrue(res_deferreds[1].called)
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try:
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yield res_deferreds[1]
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self.assertFalse("unsigned json didn't cause a failure")
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except SynapseError:
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pass
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self.assertFalse(res_deferreds[0].called)
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res_deferreds[0].addBoth(self.check_context, None)
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# wait a tick for it to send the request to the perspectives server
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# (it first tries the datastore)
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yield clock.sleep(1) # XXX find out why this takes so long!
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self.http_client.post_json.assert_called_once()
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self.assertIs(LoggingContext.current_context(), context_11)
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context_12 = LoggingContext("12")
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context_12.request = "12"
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with logcontext.PreserveLoggingContext(context_12):
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# a second request for a server with outstanding requests
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# should block rather than start a second call
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self.http_client.post_json.reset_mock()
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self.http_client.post_json.return_value = defer.Deferred()
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res_deferreds_2 = kr.verify_json_objects_for_server(
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[("server10", json1)],
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)
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yield clock.sleep(1)
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self.http_client.post_json.assert_not_called()
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res_deferreds_2[0].addBoth(self.check_context, None)
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# complete the first request
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with logcontext.PreserveLoggingContext():
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persp_deferred.callback(persp_resp)
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self.assertIs(LoggingContext.current_context(), context_11)
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with logcontext.PreserveLoggingContext():
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yield res_deferreds[0]
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yield res_deferreds_2[0]
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@defer.inlineCallbacks
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def test_verify_json_for_server(self):
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kr = keyring.Keyring(self.hs)
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key1 = signedjson.key.generate_signing_key(1)
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yield self.hs.datastore.store_server_verify_key(
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"server9", "", time.time() * 1000,
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signedjson.key.get_verify_key(key1),
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)
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json1 = {}
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signedjson.sign.sign_json(json1, "server9", key1)
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sentinel_context = LoggingContext.current_context()
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with LoggingContext("one") as context_one:
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context_one.request = "one"
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defer = kr.verify_json_for_server("server9", {})
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try:
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yield defer
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self.fail("should fail on unsigned json")
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except SynapseError:
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pass
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self.assertIs(LoggingContext.current_context(), context_one)
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defer = kr.verify_json_for_server("server9", json1)
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self.assertFalse(defer.called)
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self.assertIs(LoggingContext.current_context(), sentinel_context)
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yield defer
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self.assertIs(LoggingContext.current_context(), context_one)
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