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synapse/tests/util/test_dict_cache.py
Erik Johnston 23740eaa3d
Correctly mention previous copyright ()
During the migration the automated script to update the copyright
headers accidentally got rid of some of the existing copyright lines.
Reinstate them.
2024-01-23 11:26:48 +00:00

128 lines
4.2 KiB
Python

#
# This file is licensed under the Affero General Public License (AGPL) version 3.
#
# Copyright 2015, 2016 OpenMarket Ltd
# 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 synapse.util.caches.dictionary_cache import DictionaryCache
from tests import unittest
class DictCacheTestCase(unittest.TestCase):
def setUp(self) -> None:
self.cache: DictionaryCache[str, str, str] = DictionaryCache(
"foobar", max_entries=10
)
def test_simple_cache_hit_full(self) -> None:
key = "test_simple_cache_hit_full"
v = self.cache.get(key)
self.assertIs(v.full, False)
self.assertEqual(v.known_absent, set())
self.assertEqual({}, v.value)
seq = self.cache.sequence
test_value = {"test": "test_simple_cache_hit_full"}
self.cache.update(seq, key, test_value)
c = self.cache.get(key)
self.assertEqual(test_value, c.value)
def test_simple_cache_hit_partial(self) -> None:
key = "test_simple_cache_hit_partial"
seq = self.cache.sequence
test_value = {"test": "test_simple_cache_hit_partial"}
self.cache.update(seq, key, test_value)
c = self.cache.get(key, ["test"])
self.assertEqual(test_value, c.value)
def test_simple_cache_miss_partial(self) -> None:
key = "test_simple_cache_miss_partial"
seq = self.cache.sequence
test_value = {"test": "test_simple_cache_miss_partial"}
self.cache.update(seq, key, test_value)
c = self.cache.get(key, ["test2"])
self.assertEqual({}, c.value)
def test_simple_cache_hit_miss_partial(self) -> None:
key = "test_simple_cache_hit_miss_partial"
seq = self.cache.sequence
test_value = {
"test": "test_simple_cache_hit_miss_partial",
"test2": "test_simple_cache_hit_miss_partial2",
"test3": "test_simple_cache_hit_miss_partial3",
}
self.cache.update(seq, key, test_value)
c = self.cache.get(key, ["test2"])
self.assertEqual({"test2": "test_simple_cache_hit_miss_partial2"}, c.value)
def test_multi_insert(self) -> None:
key = "test_simple_cache_hit_miss_partial"
seq = self.cache.sequence
test_value_1 = {"test": "test_simple_cache_hit_miss_partial"}
self.cache.update(seq, key, test_value_1, fetched_keys={"test"})
seq = self.cache.sequence
test_value_2 = {"test2": "test_simple_cache_hit_miss_partial2"}
self.cache.update(seq, key, test_value_2, fetched_keys={"test2"})
c = self.cache.get(key, dict_keys=["test", "test2"])
self.assertEqual(
{
"test": "test_simple_cache_hit_miss_partial",
"test2": "test_simple_cache_hit_miss_partial2",
},
c.value,
)
self.assertEqual(c.full, False)
def test_invalidation(self) -> None:
"""Test that the partial dict and full dicts get invalidated
separately.
"""
key = "some_key"
seq = self.cache.sequence
# start by populating a "full dict" entry
self.cache.update(seq, key, {"a": "b", "c": "d"})
# add a bunch of individual entries, also keeping the individual
# entry for "a" warm.
for i in range(20):
self.cache.get(key, ["a"])
self.cache.update(seq, f"key{i}", {"1": "2"})
# We should have evicted the full dict...
r = self.cache.get(key)
self.assertFalse(r.full)
self.assertTrue("c" not in r.value)
# ... but kept the "a" entry that we kept querying.
r = self.cache.get(key, dict_keys=["a"])
self.assertFalse(r.full)
self.assertEqual(r.value, {"a": "b"})