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75 lines
2.5 KiB
Python
75 lines
2.5 KiB
Python
# -*- coding: utf-8 -*-
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# Copyright 2015, 2016 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 .. import unittest
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from synapse.util.caches.lrucache import LruCache
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from synapse.util.caches.treecache import TreeCache
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class LruCacheTestCase(unittest.TestCase):
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def test_get_set(self):
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cache = LruCache(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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cache = LruCache(2)
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cache[1] = 1
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cache[2] = 2
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self.assertEquals(cache.get(1), 1)
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self.assertEquals(cache.get(2), 2)
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cache[3] = 3
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self.assertEquals(cache.get(1), None)
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self.assertEquals(cache.get(2), 2)
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self.assertEquals(cache.get(3), 3)
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def test_setdefault(self):
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cache = LruCache(1)
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self.assertEquals(cache.setdefault("key", 1), 1)
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self.assertEquals(cache.get("key"), 1)
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self.assertEquals(cache.setdefault("key", 2), 1)
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self.assertEquals(cache.get("key"), 1)
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def test_pop(self):
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cache = LruCache(1)
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cache["key"] = 1
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self.assertEquals(cache.pop("key"), 1)
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self.assertEquals(cache.pop("key"), None)
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def test_del_multi(self):
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cache = LruCache(4, 2, cache_type=TreeCache)
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cache[("animal", "cat")] = "mew"
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cache[("animal", "dog")] = "woof"
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cache[("vehicles", "car")] = "vroom"
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cache[("vehicles", "train")] = "chuff"
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self.assertEquals(len(cache), 4)
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self.assertEquals(cache.get(("animal", "cat")), "mew")
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self.assertEquals(cache.get(("vehicles", "car")), "vroom")
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cache.del_multi(("animal",))
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self.assertEquals(len(cache), 2)
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self.assertEquals(cache.get(("animal", "cat")), None)
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self.assertEquals(cache.get(("animal", "dog")), None)
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self.assertEquals(cache.get(("vehicles", "car")), "vroom")
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self.assertEquals(cache.get(("vehicles", "train")), "chuff")
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# Man from del_multi say "Yes".
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