badvpn/ncd/tests/checksum.ncd

process main {
    var(@checksum(@inverted_sum_bytes, "")) x;
    assert(@val_equal(x, "255"));
    
    var(@checksum(@inverted_sum_bytes, "\x01\x02\xFF")) x;
    assert(@val_equal(x, "253"));
    
    exit("0");
}