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
84
85
86
87
88
89
90
91
|
import pytest
from hishel import LFUCache
def test_lfu_cache():
cache: LFUCache[int, int] = LFUCache(2)
cache.put(1, 2)
a = cache.get(1)
assert a == 2
def test_lfu_cache_delete():
cache: LFUCache[int, int] = LFUCache(2)
cache.put(1, 2)
cache.put(3, 4)
cache.put(5, 6)
cache.get(3)
cache.get(3)
with pytest.raises(KeyError):
cache.get(1)
def test_lfu_cache_invalid_capacity():
with pytest.raises(ValueError, match="Capacity must be positive"):
LFUCache(0)
def test_lfu_cache_delete_least_frequently():
cache: LFUCache[int, int] = LFUCache(2)
cache.put(1, 10)
cache.put(2, 10)
cache.get(1)
cache.put(3, 10)
with pytest.raises(KeyError):
cache.get(2)
cache: LFUCache[int, int] = LFUCache(2) # type: ignore[no-redef]
cache.put(1, 10)
cache.put(2, 10)
cache.get(2)
cache.put(3, 10)
with pytest.raises(KeyError):
cache.get(1)
def test_lfu_cache_remove_key():
cache: LFUCache[int, int] = LFUCache(2)
cache.put(1, 10)
cache.put(2, 10)
cache.remove_key(1)
with pytest.raises(KeyError):
cache.get(1)
cache.put(1, 10)
cache.get(1)
assert cache.min_freq == 1
cache.remove_key(2)
assert cache.min_freq == 2
def test_lfu_cache_put_existing():
cache: LFUCache[int, int] = LFUCache(2)
cache.put(1, 10)
cache.put(2, 10)
cache.put(1, 20)
assert cache.get(1) == 20
cache: LFUCache[int, int] = LFUCache(2) # type: ignore[no-redef]
cache.put(1, 10)
cache.put(1, 20)
assert cache.get(1) == 20
|
