def test_input_validation():
with pytest.raises(TypeError):
FSLRUCache(maxsize=1, path=1)
with pytest.raises(TypeError):
FSLRUCache(maxsize=1, ttl="1")
with pytest.raises(TypeError):
FSLRUCache(maxsize="1")
def test_items():
cache = FSLRUCache(maxsize=3, clear_on_start=True)
cache["hello"] = "world"
for k, v in cache.items():
assert k == "hello"
assert v == "world"
def test_del():
cache = FSLRUCache(maxsize=3, clear_on_start=True)
assert len(cache) == 0
cache["hello"] = "world"
assert len(cache) == 1
del cache["hello"]
assert len(cache) == 0
def test_len():
cache = FSLRUCache(maxsize=3, clear_on_start=True)
assert len(cache) == 0
cache["hello"] = "world"
assert len(cache) == 1
cache["hello"] = "world"
assert len(cache) == 1
cache["foo"] = "bar"
assert len(cache) == 2
def test_keys():
cache = FSLRUCache(maxsize=3, clear_on_start=True)
cache["hello"] = "world"
keys = cache.keys()
assert len([x for x in keys]) == 1
for key in keys:
assert key == "hello"
def test_ttl():
cache = FSLRUCache(maxsize=3, clear_on_start=True, ttl=0.1)
cache["a"] = 1
import time
time.sleep(0.11)
with pytest.raises(KeyError):
res = cache["a"]
def test_last_access_update():
cache = FSLRUCache(maxsize=3, clear_on_start=True)
cache["hello"] = "world"
cache["foo"] = "bar"
# Access "hello" to make "foo" the oldest key to be accessed
cache["hello"]
key, val = cache.popitem()
assert (key, val) == ("foo", "bar")
def test_values():
cache = FSLRUCache(maxsize=3, clear_on_start=True)
cache["hello"] = "world"
cache["a"] = "b"
values = cache.values()
assert len([x for x in values]) == 2
for value in values:
assert value in ("world", "b")
def test_popitem():
cache = FSLRUCache(maxsize=3, clear_on_start=True)
cache["hello"] = "world"
cache["foo"] = "bar"
key, val = cache.popitem()
assert (key, val) == ("hello", "world")
assert len(cache) == 1
with pytest.raises(KeyError):
cache.popitem()
cache.popitem()
def test_items_keyerror_squashed():
cache = FSLRUCache(maxsize=5)
cache["a"] = 1
cache["b"] = 2
items = cache.items()
del cache["b"]
for k, v in items:
assert True
def test_maxsize():
cache = FSLRUCache(maxsize=3, clear_on_start=True)
cache["a"] = 1
cache["b"] = 2
cache["c"] = 3
assert len(cache) == 3
cache["d"] = 4
assert len(cache) == 3
values = [x for x in cache.values()]
assert 2 in values
assert 3 in values
assert 4 in values
def test_set_get():
cache = FSLRUCache(maxsize=3, clear_on_start=True)
cache["hello"] = "world"
assert cache["hello"] == "world"
def test_contains():
cache = FSLRUCache(maxsize=3, clear_on_start=True)
assert "hello" not in cache
cache["hello"] = "world"
assert "hello" in cache
def test_current_size_too_big():
cache = FSLRUCache(maxsize=0)
with pytest.raises(ValueError):
cache["a"] = 1