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89 lines
2.9 KiB
Python
89 lines
2.9 KiB
Python
#
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# This file is licensed under the Affero General Public License (AGPL) version 3.
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#
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# Copyright (C) 2023 New Vector, Ltd
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#
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# This program is free software: you can redistribute it and/or modify
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# it under the terms of the GNU Affero General Public License as
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# published by the Free Software Foundation, either version 3 of the
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# License, or (at your option) any later version.
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#
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# See the GNU Affero General Public License for more details:
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# <https://www.gnu.org/licenses/agpl-3.0.html>.
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#
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# Originally licensed under the Apache License, Version 2.0:
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# <http://www.apache.org/licenses/LICENSE-2.0>.
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#
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# [This file includes modifications made by New Vector Limited]
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#
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#
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from unittest.mock import Mock
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from synapse.util.caches.ttlcache import TTLCache
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from tests import unittest
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class CacheTestCase(unittest.TestCase):
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def setUp(self) -> None:
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self.mock_timer = Mock(side_effect=lambda: 100.0)
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self.cache: TTLCache[str, str] = TTLCache("test_cache", self.mock_timer)
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def test_get(self) -> None:
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"""simple set/get tests"""
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self.cache.set("one", "1", 10)
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self.cache.set("two", "2", 20)
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self.cache.set("three", "3", 30)
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self.assertEqual(len(self.cache), 3)
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self.assertTrue("one" in self.cache)
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self.assertEqual(self.cache.get("one"), "1")
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self.assertEqual(self.cache["one"], "1")
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self.assertEqual(self.cache.get_with_expiry("one"), ("1", 110, 10))
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self.assertEqual(self.cache._metrics.hits, 3)
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self.assertEqual(self.cache._metrics.misses, 0)
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self.cache.set("two", "2.5", 20)
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self.assertEqual(self.cache["two"], "2.5")
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self.assertEqual(self.cache._metrics.hits, 4)
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# non-existent-item tests
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self.assertEqual(self.cache.get("four", "4"), "4")
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self.assertIs(self.cache.get("four", None), None)
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with self.assertRaises(KeyError):
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self.cache["four"]
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with self.assertRaises(KeyError):
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self.cache.get("four")
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with self.assertRaises(KeyError):
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self.cache.get_with_expiry("four")
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self.assertEqual(self.cache._metrics.hits, 4)
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self.assertEqual(self.cache._metrics.misses, 5)
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def test_expiry(self) -> None:
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self.cache.set("one", "1", 10)
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self.cache.set("two", "2", 20)
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self.cache.set("three", "3", 30)
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self.assertEqual(len(self.cache), 3)
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self.assertEqual(self.cache["one"], "1")
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self.assertEqual(self.cache["two"], "2")
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# enough for the first entry to expire, but not the rest
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self.mock_timer.side_effect = lambda: 110.0
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self.assertEqual(len(self.cache), 2)
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self.assertFalse("one" in self.cache)
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self.assertEqual(self.cache["two"], "2")
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self.assertEqual(self.cache["three"], "3")
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self.assertEqual(self.cache.get_with_expiry("two"), ("2", 120, 20))
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self.assertEqual(self.cache._metrics.hits, 5)
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self.assertEqual(self.cache._metrics.misses, 0)
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