from untitled import rules


def test_bad_names():
    assert rules.validate_cat_name("a")
    assert rules.validate_cat_name("@nope")
    assert rules.validate_cat_name("1111")
    assert rules.validate_cat_name("a111") is None
    assert rules.validate_cat_name("aaaa") is None
    assert rules.validate_cat_name("a" * 24) is None