# Copyright 2020 Istvan Ruzman
# SPDX-License-Identifier: MIT OR Apache-2.0

import struct

from pyrad3 import utils
import pytest

# @pytest.mark.parametrize("header", [
#     b""])
# def test_valid_header(header):
#     utils.parse_header(header)


@pytest.mark.parametrize(
    "header",
    [
        b"\1\0" + struct.pack("!H", 5000) + 4996 * b"\0",
        b"\1\0" + struct.pack("!H", 100),
        b"\0\0" + struct.pack("!H", 20) + 16 * b"\0",
        b"",
    ],
)
def test_invalid_header(header):
    with pytest.raises(utils.PacketError):
        utils.parse_header(header)