mirror of
https://mau.dev/maunium/synapse.git
synced 2024-11-09 11:32:01 +01:00
4b965c862d
Part of #9744 Removes all redundant `# -*- coding: utf-8 -*-` lines from files, as python 3 automatically reads source code as utf-8 now. `Signed-off-by: Jonathan de Jong <jonathan@automatia.nl>`
172 lines
4.3 KiB
Python
172 lines
4.3 KiB
Python
# Copyright 2016 OpenMarket Ltd
|
|
# Copyright 2018 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, reactor
|
|
from twisted.internet.defer import CancelledError
|
|
|
|
from synapse.logging.context import LoggingContext, current_context
|
|
from synapse.util import Clock
|
|
from synapse.util.async_helpers import Linearizer
|
|
|
|
from tests import unittest
|
|
|
|
|
|
class LinearizerTestCase(unittest.TestCase):
|
|
@defer.inlineCallbacks
|
|
def test_linearizer(self):
|
|
linearizer = Linearizer()
|
|
|
|
key = object()
|
|
|
|
d1 = linearizer.queue(key)
|
|
cm1 = yield d1
|
|
|
|
d2 = linearizer.queue(key)
|
|
self.assertFalse(d2.called)
|
|
|
|
with cm1:
|
|
self.assertFalse(d2.called)
|
|
|
|
with (yield d2):
|
|
pass
|
|
|
|
@defer.inlineCallbacks
|
|
def test_linearizer_is_queued(self):
|
|
linearizer = Linearizer()
|
|
|
|
key = object()
|
|
|
|
d1 = linearizer.queue(key)
|
|
cm1 = yield d1
|
|
|
|
# Since d1 gets called immediately, "is_queued" should return false.
|
|
self.assertFalse(linearizer.is_queued(key))
|
|
|
|
d2 = linearizer.queue(key)
|
|
self.assertFalse(d2.called)
|
|
|
|
# Now d2 is queued up behind successful completion of cm1
|
|
self.assertTrue(linearizer.is_queued(key))
|
|
|
|
with cm1:
|
|
self.assertFalse(d2.called)
|
|
|
|
# cm1 still not done, so d2 still queued.
|
|
self.assertTrue(linearizer.is_queued(key))
|
|
|
|
# And now d2 is called and nothing is in the queue again
|
|
self.assertFalse(linearizer.is_queued(key))
|
|
|
|
with (yield d2):
|
|
self.assertFalse(linearizer.is_queued(key))
|
|
|
|
self.assertFalse(linearizer.is_queued(key))
|
|
|
|
def test_lots_of_queued_things(self):
|
|
# we have one slow thing, and lots of fast things queued up behind it.
|
|
# it should *not* explode the stack.
|
|
linearizer = Linearizer()
|
|
|
|
@defer.inlineCallbacks
|
|
def func(i, sleep=False):
|
|
with LoggingContext("func(%s)" % i) as lc:
|
|
with (yield linearizer.queue("")):
|
|
self.assertEqual(current_context(), lc)
|
|
if sleep:
|
|
yield Clock(reactor).sleep(0)
|
|
|
|
self.assertEqual(current_context(), lc)
|
|
|
|
func(0, sleep=True)
|
|
for i in range(1, 100):
|
|
func(i)
|
|
|
|
return func(1000)
|
|
|
|
@defer.inlineCallbacks
|
|
def test_multiple_entries(self):
|
|
limiter = Linearizer(max_count=3)
|
|
|
|
key = object()
|
|
|
|
d1 = limiter.queue(key)
|
|
cm1 = yield d1
|
|
|
|
d2 = limiter.queue(key)
|
|
cm2 = yield d2
|
|
|
|
d3 = limiter.queue(key)
|
|
cm3 = yield d3
|
|
|
|
d4 = limiter.queue(key)
|
|
self.assertFalse(d4.called)
|
|
|
|
d5 = limiter.queue(key)
|
|
self.assertFalse(d5.called)
|
|
|
|
with cm1:
|
|
self.assertFalse(d4.called)
|
|
self.assertFalse(d5.called)
|
|
|
|
cm4 = yield d4
|
|
self.assertFalse(d5.called)
|
|
|
|
with cm3:
|
|
self.assertFalse(d5.called)
|
|
|
|
cm5 = yield d5
|
|
|
|
with cm2:
|
|
pass
|
|
|
|
with cm4:
|
|
pass
|
|
|
|
with cm5:
|
|
pass
|
|
|
|
d6 = limiter.queue(key)
|
|
with (yield d6):
|
|
pass
|
|
|
|
@defer.inlineCallbacks
|
|
def test_cancellation(self):
|
|
linearizer = Linearizer()
|
|
|
|
key = object()
|
|
|
|
d1 = linearizer.queue(key)
|
|
cm1 = yield d1
|
|
|
|
d2 = linearizer.queue(key)
|
|
self.assertFalse(d2.called)
|
|
|
|
d3 = linearizer.queue(key)
|
|
self.assertFalse(d3.called)
|
|
|
|
d2.cancel()
|
|
|
|
with cm1:
|
|
pass
|
|
|
|
self.assertTrue(d2.called)
|
|
try:
|
|
yield d2
|
|
self.fail("Expected d2 to raise CancelledError")
|
|
except CancelledError:
|
|
pass
|
|
|
|
with (yield d3):
|
|
pass
|