#! /usr/bin/env perl
# Copyright (C) 2019 Guido Flohr <guido.flohr@cantanea.com>,
# all rights reserved.
# This program is free software. It comes without any warranty, to
# the extent permitted by applicable law. You can redistribute it
# and/or modify it under the terms of the Do What the Fuck You Want
# to Public License, Version 2, as published by Sam Hocevar. See
# http://www.wtfpl.net/ for more details.
use common::sense;
use Test::More;
use Chess::Opening::Book::Polyglot;
# Tests from http://hardy.uhasselt.be/Toga/book_format.html
sub stringify_key($);
my ($key);
$key = Chess::Opening::Book::Polyglot->_getKey(
        'rnbqkbnr/pppppppp/8/8/8/8/PPPPPPPP/RNBQKBNR w KQkq - 0 1'
);
is stringify_key $key, "0x463b96181691fc9c";
$key = Chess::Opening::Book::Polyglot->_getKey(
        'rnbqkbnr/pppppppp/8/8/4P3/8/PPPP1PPP/RNBQKBNR b KQkq e3 0 1',
);
is stringify_key $key, "0x823c9b50fd114196";
$key = Chess::Opening::Book::Polyglot->_getKey(
        'rnbqkbnr/ppp1pppp/8/3p4/4P3/8/PPPP1PPP/RNBQKBNR w KQkq d6 0 2',
);
is stringify_key $key, "0x0756b94461c50fb0";
$key = Chess::Opening::Book::Polyglot->_getKey(
        'rnbqkbnr/ppp1pppp/8/3pP3/8/8/PPPP1PPP/RNBQKBNR b KQkq - 0 2',
);
is stringify_key $key, "0x662fafb965db29d4";
$key = Chess::Opening::Book::Polyglot->_getKey(
        'rnbqkbnr/ppp1p1pp/8/3pPp2/8/8/PPPP1PPP/RNBQKBNR w KQkq f6 0 3',
);
is stringify_key $key, "0x22a48b5a8e47ff78";
$key = Chess::Opening::Book::Polyglot->_getKey(
        'rnbqkbnr/ppp1p1pp/8/3pPp2/8/8/PPPPKPPP/RNBQ1BNR b kq - 0 3',
);
is stringify_key $key, "0x652a607ca3f242c1";
$key = Chess::Opening::Book::Polyglot->_getKey(
        'rnbq1bnr/ppp1pkpp/8/3pPp2/8/8/PPPPKPPP/RNBQ1BNR w - - 0 4',
);
is stringify_key $key, "0x00fdd303c946bdd9";
$key = Chess::Opening::Book::Polyglot->_getKey(
        'rnbqkbnr/p1pppppp/8/8/PpP4P/8/1P1PPPP1/RNBQKBNR b KQkq c3 0 3',
);
is stringify_key $key, "0x3c8123ea7b067637";
$key = Chess::Opening::Book::Polyglot->_getKey(
        'rnbqkbnr/p1pppppp/8/8/P6P/R1p5/1P1PPPP1/1NBQKBNR b Kkq - 0 4',
);
is stringify_key $key, "0x5c3f9b829b279560";
done_testing;
sub stringify_key($) {
        my @bytes = unpack 'C*', shift;
        my $retval = '0x';
        foreach my $byte (@bytes) {
                $retval .= sprintf '%02x', $byte;
        }
        return $retval;
}