synapse/tests/util/test_lrucache.py

82 lines
2.6 KiB
Python
Raw Normal View History

2015-02-11 15:52:23 +01:00
# -*- coding: utf-8 -*-
2016-01-07 05:26:29 +01:00
# Copyright 2015, 2016 OpenMarket Ltd
2015-02-11 15:52:23 +01:00
#
# 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 .. import unittest
from synapse.util.caches.lrucache import LruCache
from synapse.util.caches.treecache import TreeCache
2015-02-11 15:52:23 +01:00
2016-01-29 12:33:11 +01:00
2015-02-11 15:52:23 +01:00
class LruCacheTestCase(unittest.TestCase):
def test_get_set(self):
cache = LruCache(1)
cache["key"] = "value"
self.assertEquals(cache.get("key"), "value")
self.assertEquals(cache["key"], "value")
2015-02-11 15:52:23 +01:00
def test_eviction(self):
cache = LruCache(2)
cache[1] = 1
cache[2] = 2
2015-02-11 15:52:23 +01:00
self.assertEquals(cache.get(1), 1)
self.assertEquals(cache.get(2), 2)
2015-02-11 15:52:23 +01:00
cache[3] = 3
2015-02-11 15:52:23 +01:00
self.assertEquals(cache.get(1), None)
self.assertEquals(cache.get(2), 2)
self.assertEquals(cache.get(3), 3)
2015-02-11 15:52:23 +01:00
def test_setdefault(self):
cache = LruCache(1)
self.assertEquals(cache.setdefault("key", 1), 1)
self.assertEquals(cache.get("key"), 1)
self.assertEquals(cache.setdefault("key", 2), 1)
self.assertEquals(cache.get("key"), 1)
2015-02-11 15:52:23 +01:00
def test_pop(self):
cache = LruCache(1)
cache["key"] = 1
self.assertEquals(cache.pop("key"), 1)
self.assertEquals(cache.pop("key"), None)
2016-01-22 12:22:00 +01:00
def test_del_multi(self):
cache = LruCache(4, 2, cache_type=TreeCache)
2016-01-22 12:22:00 +01:00
cache[("animal", "cat")] = "mew"
cache[("animal", "dog")] = "woof"
cache[("vehicles", "car")] = "vroom"
cache[("vehicles", "train")] = "chuff"
self.assertEquals(len(cache), 4)
self.assertEquals(cache.get(("animal", "cat")), "mew")
self.assertEquals(cache.get(("vehicles", "car")), "vroom")
cache.del_multi(("animal",))
self.assertEquals(len(cache), 2)
self.assertEquals(cache.get(("animal", "cat")), None)
self.assertEquals(cache.get(("animal", "dog")), None)
self.assertEquals(cache.get(("vehicles", "car")), "vroom")
self.assertEquals(cache.get(("vehicles", "train")), "chuff")
# Man from del_multi say "Yes".
2016-01-29 12:33:11 +01:00
def test_clear(self):
cache = LruCache(1)
cache["key"] = 1
cache.clear()
self.assertEquals(len(cache), 0)