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2ca4e349e9
Part of #9366 Adds in fixes for B006 and B008, both relating to mutable parameter lint errors. Signed-off-by: Jonathan de Jong <jonathan@automatia.nl>
100 lines
3.4 KiB
Python
100 lines
3.4 KiB
Python
# -*- coding: utf-8 -*-
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# Copyright 2019 The Matrix.org Foundation C.I.C.
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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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from typing import Optional
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from synapse.config.homeserver import HomeServerConfig
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from synapse.util.ratelimitutils import FederationRateLimiter
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from tests.server import get_clock
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from tests.unittest import TestCase
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from tests.utils import default_config
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class FederationRateLimiterTestCase(TestCase):
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def test_ratelimit(self):
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"""A simple test with the default values"""
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reactor, clock = get_clock()
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rc_config = build_rc_config()
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ratelimiter = FederationRateLimiter(clock, rc_config)
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with ratelimiter.ratelimit("testhost") as d1:
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# shouldn't block
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self.successResultOf(d1)
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def test_concurrent_limit(self):
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"""Test what happens when we hit the concurrent limit"""
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reactor, clock = get_clock()
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rc_config = build_rc_config({"rc_federation": {"concurrent": 2}})
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ratelimiter = FederationRateLimiter(clock, rc_config)
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with ratelimiter.ratelimit("testhost") as d1:
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# shouldn't block
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self.successResultOf(d1)
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cm2 = ratelimiter.ratelimit("testhost")
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d2 = cm2.__enter__()
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# also shouldn't block
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self.successResultOf(d2)
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cm3 = ratelimiter.ratelimit("testhost")
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d3 = cm3.__enter__()
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# this one should block, though ...
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self.assertNoResult(d3)
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# ... until we complete an earlier request
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cm2.__exit__(None, None, None)
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self.successResultOf(d3)
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def test_sleep_limit(self):
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"""Test what happens when we hit the sleep limit"""
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reactor, clock = get_clock()
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rc_config = build_rc_config(
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{"rc_federation": {"sleep_limit": 2, "sleep_delay": 500}}
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)
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ratelimiter = FederationRateLimiter(clock, rc_config)
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with ratelimiter.ratelimit("testhost") as d1:
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# shouldn't block
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self.successResultOf(d1)
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with ratelimiter.ratelimit("testhost") as d2:
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# nor this
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self.successResultOf(d2)
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with ratelimiter.ratelimit("testhost") as d3:
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# this one should block, though ...
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self.assertNoResult(d3)
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sleep_time = _await_resolution(reactor, d3)
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self.assertAlmostEqual(sleep_time, 500, places=3)
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def _await_resolution(reactor, d):
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"""advance the clock until the deferred completes.
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Returns the number of milliseconds it took to complete.
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"""
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start_time = reactor.seconds()
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while not d.called:
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reactor.advance(0.01)
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return (reactor.seconds() - start_time) * 1000
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def build_rc_config(settings: Optional[dict] = None):
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config_dict = default_config("test")
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config_dict.update(settings or {})
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config = HomeServerConfig()
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config.parse_config_dict(config_dict, "", "")
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return config.rc_federation
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