1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
|
# -*- coding: utf-8 -*-
# Copyright 2019 New Vector Ltd
#
# 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 mock import Mock
from synapse.util.caches.ttlcache import TTLCache
from tests import unittest
class CacheTestCase(unittest.TestCase):
def setUp(self):
self.mock_timer = Mock(side_effect=lambda: 100.0)
self.cache = TTLCache("test_cache", self.mock_timer)
def test_get(self):
"""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))
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):
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))
self.assertEqual(self.cache._metrics.hits, 5)
self.assertEqual(self.cache._metrics.misses, 0)
|
