mirror of
https://mau.dev/maunium/synapse.git
synced 2024-12-30 02:54:00 +01:00
104 lines
3.7 KiB
Python
104 lines
3.7 KiB
Python
# -*- coding: utf-8 -*-
|
|
# Copyright 2019 New Vector Ltd
|
|
#
|
|
# 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.
|
|
from twisted.internet import defer
|
|
from twisted.internet.defer import CancelledError, Deferred
|
|
from twisted.internet.task import Clock
|
|
|
|
from synapse.util import logcontext
|
|
from synapse.util.async_helpers import timeout_deferred
|
|
from synapse.util.logcontext import LoggingContext
|
|
|
|
from tests.unittest import TestCase
|
|
|
|
|
|
class TimeoutDeferredTest(TestCase):
|
|
def setUp(self):
|
|
self.clock = Clock()
|
|
|
|
def test_times_out(self):
|
|
"""Basic test case that checks that the original deferred is cancelled and that
|
|
the timing-out deferred is errbacked
|
|
"""
|
|
cancelled = [False]
|
|
|
|
def canceller(_d):
|
|
cancelled[0] = True
|
|
|
|
non_completing_d = Deferred(canceller)
|
|
timing_out_d = timeout_deferred(non_completing_d, 1.0, self.clock)
|
|
|
|
self.assertNoResult(timing_out_d)
|
|
self.assertFalse(cancelled[0], "deferred was cancelled prematurely")
|
|
|
|
self.clock.pump((1.0, ))
|
|
|
|
self.assertTrue(cancelled[0], "deferred was not cancelled by timeout")
|
|
self.failureResultOf(timing_out_d, defer.TimeoutError, )
|
|
|
|
def test_times_out_when_canceller_throws(self):
|
|
"""Test that we have successfully worked around
|
|
https://twistedmatrix.com/trac/ticket/9534"""
|
|
|
|
def canceller(_d):
|
|
raise Exception("can't cancel this deferred")
|
|
|
|
non_completing_d = Deferred(canceller)
|
|
timing_out_d = timeout_deferred(non_completing_d, 1.0, self.clock)
|
|
|
|
self.assertNoResult(timing_out_d)
|
|
|
|
self.clock.pump((1.0, ))
|
|
|
|
self.failureResultOf(timing_out_d, defer.TimeoutError, )
|
|
|
|
def test_logcontext_is_preserved_on_cancellation(self):
|
|
blocking_was_cancelled = [False]
|
|
|
|
@defer.inlineCallbacks
|
|
def blocking():
|
|
non_completing_d = Deferred()
|
|
with logcontext.PreserveLoggingContext():
|
|
try:
|
|
yield non_completing_d
|
|
except CancelledError:
|
|
blocking_was_cancelled[0] = True
|
|
raise
|
|
|
|
with logcontext.LoggingContext("one") as context_one:
|
|
# the errbacks should be run in the test logcontext
|
|
def errback(res, deferred_name):
|
|
self.assertIs(
|
|
LoggingContext.current_context(), context_one,
|
|
"errback %s run in unexpected logcontext %s" % (
|
|
deferred_name, LoggingContext.current_context(),
|
|
)
|
|
)
|
|
return res
|
|
|
|
original_deferred = blocking()
|
|
original_deferred.addErrback(errback, "orig")
|
|
timing_out_d = timeout_deferred(original_deferred, 1.0, self.clock)
|
|
self.assertNoResult(timing_out_d)
|
|
self.assertIs(LoggingContext.current_context(), LoggingContext.sentinel)
|
|
timing_out_d.addErrback(errback, "timingout")
|
|
|
|
self.clock.pump((1.0, ))
|
|
|
|
self.assertTrue(
|
|
blocking_was_cancelled[0],
|
|
"non-completing deferred was not cancelled",
|
|
)
|
|
self.failureResultOf(timing_out_d, defer.TimeoutError, )
|
|
self.assertIs(LoggingContext.current_context(), context_one)
|