repo_zf1/tests/Zend/Crypt/MathTest.php

<?php
/**
 * Zend Framework
 *
 * LICENSE
 *
 * This source file is subject to the new BSD license that is bundled
 * with this package in the file LICENSE.txt.
 * It is also available through the world-wide-web at this URL:
 * http://framework.zend.com/license/new-bsd
 * If you did not receive a copy of the license and are unable to
 * obtain it through the world-wide-web, please send an email
 * to license@zend.com so we can send you a copy immediately.
 *
 * @category   Zend
 * @package    Zend_Crypt
 * @subpackage UnitTests
 * @copyright  Copyright (c) 2005-2010 Zend Technologies USA Inc. (http://www.zend.com)
 * @license    http://framework.zend.com/license/new-bsd     New BSD License
 * @version    $Id$
 */

require_once 'Zend/Crypt/Math.php';


/**
 * @category   Zend
 * @package    Zend_Crypt
 * @subpackage UnitTests
 * @copyright  Copyright (c) 2005-2010 Zend Technologies USA Inc. (http://www.zend.com)
 * @license    http://framework.zend.com/license/new-bsd     New BSD License
 * @group      Zend_Crypt
 */
class Zend_Crypt_MathTest extends PHPUnit_Framework_TestCase
{

    public function testRand()
    {
        try {
            $math = new Zend_Crypt_Math_BigInteger();
        } catch (Zend_Crypt_Math_BigInteger_Exception $e) {
            if (strpos($e->getMessage(), 'big integer precision math support not detected') !== false) {
                $this->markTestSkipped($e->getMessage());
            } else {
                throw $e;
            }
        }

        $math   = new Zend_Crypt_Math();
        $higher = '155172898181473697471232257763715539915724801966915404479707795314057629378541917580651227423698188993727816152646631438561595825688188889951272158842675419950341258706556549803580104870537681476726513255747040765857479291291572334510643245094715007229621094194349783925984760375594985848253359305585439638443';
        $lower  = '155172898181473697471232257763715539915724801966915404479707795314057629378541917580651227423698188993727816152646631438561595825688188889951272158842675419950341258706556549803580104870537681476726513255747040765857479291291572334510643245094715007229621094194349783925984760375594985848253359305585439638442';
        $result = $math->rand($lower, $higher);
        $this->assertTrue(bccomp($result, $higher) !== '1');
        $this->assertTrue(bccomp($result, $lower) !== '-1');
    }

}