def test_cache_clear(cache: Cache):
"""Test that cache.clear() deletes all cache keys."""
items = {"a": 1, "b": 2, "c": 3}
cache.set_many(items)
assert len(cache) == len(items)
cache.clear()
assert len(cache) == 0
return a + b
@cache.memoize()
def func(a, b):
pass
func.uncached(1, 2)
assert cache.copy() == {1: "foobar", 2: ("foo", "bar", "baz")}
cache.delete(1)
assert cache.get(1) is None
cache.clear()
assert len(cache) == 0
cache.set_many({"a": 1, "b": 2, "c": 3})
assert cache.get_many(["a", "b", "c"]) == {"a": 1, "b": 2, "c": 3}
cache.delete_many(["a", "b", "c"])
assert cache.count() == 0
import re
cache.set_many({"a_1": 1, "a_2": 2, "123": 3, "b": 4})
# func.uncached(1, 2)
# assert cache.copy() == {1: "foobar", 2: ("foo", "bar", "baz")}