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