def test_ttl():
ledis = Ledis()
ledis.set("str_type", "hello")
assert ledis.storage["str_type"].expire_at is None
ledis.expire("str_type", 10)
assert ledis.ttl("str_type") == 10
def test_expire_invalid_seconds():
ledis = Ledis()
ledis.set("str_type", "hello")
with pytest.raises(InvalidValue):
ledis.expire("str_type", -1)
with pytest.raises(InvalidValue):
ledis.expire("str_type", 0)
def test_expire_str():
ledis = Ledis()
ledis.set("str_type", "hello")
assert ledis.expire("str_type", 1) == 1
sleep(2)
# The key will only be lazy-deleted
# if the key is called in any operations
assert "str_type" in ledis.storage
assert ledis.get("str_type") is None
assert "str_type" not in ledis.storage
def test_expire_key_not_exist():
ledis = Ledis()
assert ledis.expire("key_not_found", 1) == -1