mirror of
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82 lines
2.6 KiB
Python
82 lines
2.6 KiB
Python
# -*- coding: utf-8 -*-
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# Copyright 2017 OpenMarket 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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from synapse.util.caches.expiringcache import ExpiringCache
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from tests.utils import MockClock
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from .. import unittest
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class ExpiringCacheTestCase(unittest.HomeserverTestCase):
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def test_get_set(self):
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clock = MockClock()
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cache = ExpiringCache("test", clock, max_len=1)
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cache["key"] = "value"
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self.assertEquals(cache.get("key"), "value")
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self.assertEquals(cache["key"], "value")
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def test_eviction(self):
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clock = MockClock()
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cache = ExpiringCache("test", clock, max_len=2)
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cache["key"] = "value"
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cache["key2"] = "value2"
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self.assertEquals(cache.get("key"), "value")
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self.assertEquals(cache.get("key2"), "value2")
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cache["key3"] = "value3"
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self.assertEquals(cache.get("key"), None)
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self.assertEquals(cache.get("key2"), "value2")
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self.assertEquals(cache.get("key3"), "value3")
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def test_iterable_eviction(self):
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clock = MockClock()
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cache = ExpiringCache("test", clock, max_len=5, iterable=True)
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cache["key"] = [1]
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cache["key2"] = [2, 3]
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cache["key3"] = [4, 5]
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self.assertEquals(cache.get("key"), [1])
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self.assertEquals(cache.get("key2"), [2, 3])
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self.assertEquals(cache.get("key3"), [4, 5])
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cache["key4"] = [6, 7]
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self.assertEquals(cache.get("key"), None)
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self.assertEquals(cache.get("key2"), None)
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self.assertEquals(cache.get("key3"), [4, 5])
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self.assertEquals(cache.get("key4"), [6, 7])
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def test_time_eviction(self):
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clock = MockClock()
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cache = ExpiringCache("test", clock, expiry_ms=1000)
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cache["key"] = 1
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clock.advance_time(0.5)
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cache["key2"] = 2
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self.assertEquals(cache.get("key"), 1)
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self.assertEquals(cache.get("key2"), 2)
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clock.advance_time(0.9)
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self.assertEquals(cache.get("key"), None)
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self.assertEquals(cache.get("key2"), 2)
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clock.advance_time(1)
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self.assertEquals(cache.get("key"), None)
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self.assertEquals(cache.get("key2"), None)
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