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import pytest
from copy import copy
from sentry_sdk._lru_cache import LRUCache
@pytest.mark.parametrize("max_size", [-10, -1, 0])
def test_illegal_size(max_size):
with pytest.raises(AssertionError):
LRUCache(max_size=max_size)
def test_simple_set_get():
cache = LRUCache(1)
assert cache.get(1) is None
cache.set(1, 1)
assert cache.get(1) == 1
def test_overwrite():
cache = LRUCache(1)
assert cache.get(1) is None
cache.set(1, 1)
assert cache.get(1) == 1
cache.set(1, 2)
assert cache.get(1) == 2
def test_cache_eviction():
cache = LRUCache(3)
cache.set(1, 1)
cache.set(2, 2)
cache.set(3, 3)
assert cache.get(1) == 1
assert cache.get(2) == 2
cache.set(4, 4)
assert cache.get(3) is None
assert cache.get(4) == 4
def test_cache_miss():
cache = LRUCache(1)
assert cache.get(0) is None
def test_cache_set_overwrite():
cache = LRUCache(3)
cache.set(0, 0)
cache.set(0, 1)
assert cache.get(0) == 1
def test_cache_get_all():
cache = LRUCache(3)
cache.set(0, 0)
cache.set(1, 1)
cache.set(2, 2)
cache.set(3, 3)
assert cache.get_all() == [(1, 1), (2, 2), (3, 3)]
cache.get(1)
assert cache.get_all() == [(2, 2), (3, 3), (1, 1)]
def test_cache_copy():
cache = LRUCache(3)
cache.set(0, 0)
cache.set(1, 1)
copied = copy(cache)
cache.set(2, 2)
cache.set(3, 3)
assert copied.get_all() == [(0, 0), (1, 1)]
assert cache.get_all() == [(1, 1), (2, 2), (3, 3)]
copied = copy(cache)
cache.get(1)
assert copied.get_all() == [(1, 1), (2, 2), (3, 3)]
assert cache.get_all() == [(2, 2), (3, 3), (1, 1)]
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