def test_unknown_hash(checksum_type):
with pytest.raises(ValueError):
crypto.Checker('a')
def test_hash_detection(checksum_type):
algo = crypto.hash_fun_for_algo(checksum_type)()
h = 'f' * (algo.digest_size * 2) # hex -> bytes
checker = crypto.Checker(h)
assert checker.hash_name == checksum_type
