Source for file Xtea2Test.php

<?php
/* vim: set expandtab tabstop=4 shiftwidth=4 softtabstop=4: */
//
// +----------------------------------------------------------------------+
// | PHP version 4.0                                                      |
// +----------------------------------------------------------------------+
// | Copyright (c) 2002 The PHP Group                                     |
// +----------------------------------------------------------------------+
// | This source file is subject to version 2.02 of the PHP license,      |
// | that is bundled with this package in the file LICENSE, and is        |
// | available at through the world-wide-web at                           |
// | http://www.php.net/license/2_02.txt.                                 |
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// +----------------------------------------------------------------------+
// | Authors: Jeroen Derks <jeroen@derks.it>                              |
// +----------------------------------------------------------------------+
//
// $Id: Xtea2Test.php,v 1.2 2004/09/08 19:21:08 jeroend Exp $
 
 
 
/** Xtea2 class */
 'Crypt/Xtea2.php';
/** PHPUnit class */
 'PHPUnit.php';
 
 
/**
 *  Tester class for Xtea2 class.
 *
 *  @package    Crypt_Xtea2_Test
 *  @access     public
 *
 *  @version    $Revision: 1.2 $
 *  @since      2004/Sep/06
 *  @author     Jeroen Derks <jeroen@derks.it>
 */
class Crypt_Xtea2Test extends PHPUnit_TestCase
{
    var $obj;
    var $data;
    var $key;
 
    function Crypt_Xtea2Test($method) {
        global $profiling;
 
        $this->profiling = $profiling;
        $this->PHPUnit_TestCase($method);
    }
 
    function setUp() {
        $this->obj = new Crypt_Xtea2();
        $this->key = '0123456789abcdeffedcba9876543210';
 
        if (!$this->profiling) $this->startTimer('data');
        //$this->data = '1'; return;
        //$this->data = '01234567890abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ'; return;
        $this->data = '';
        for ($i = 0; $i < 256; ++$i) {
            $this->data .= chr($i & 0xff);
        }
        if (!$this->profiling) $this->endTimer('data');
    }
 
    function testIter() {
        $this->obj->setIter(36);
        $this->assertEquals(36, $this->obj->getIter());
    }
 
    function testCrypt() {
        $start = IsSet($this->profiling) && $this->profiling ? strlen($this->data) - 3 : 0;
        if (0 == $start) {
            $walker = '-\|/';
            echo "Testing... ";
            flush();
        }
 
        for ($i = $start; $i < strlen($this->data); ++$i)
        {
            if (0 == $start) {
                echo $walker{$i % 4} . sprintf(" %4u", $i) . str_repeat("", 6);
                flush();
            }
 
            if (!$this->profiling) $this->startTimer('data');
            $data = substr($this->data, 0, $i);
            if (!$this->profiling) $this->endTimer('data');
 
            if (!$this->profiling) $this->startTimer('encrypt');
            $encrypted  = $this->obj->encrypt($data, $this->key);
            if (!$this->profiling) $this->endTimer('encrypt');
            if (!$this->profiling) $this->startTimer('decrypt');
            $decrypted  = $this->obj->decrypt($encrypted, $this->key);
            if (!$this->profiling) $this->endTimer('decrypt');
 
            if (!$this->profiling) $this->startTimer('assert');
            $this->assertEquals(strlen($data), strlen($decrypted));
            $this->assertEquals($data, $decrypted, "run $i failed: expected '***' (".strlen($data)."), actual '***' (".strlen($decrypted).")");
            if (!$this->profiling) $this->endTimer('assert');
        }
 
        if (0 == $start) {
            echo "                        ";
            flush();
        }
    }
 
    function _testHuge() {
        set_time_limit(99999);
 
        if (!$this->profiling) $this->startTimer('data');
        $data = '';
        for($i = 0; $i < 1024 * 1024; ++$i)
            $data .= chr($i & 0xff);
        if (!$this->profiling) $this->endTimer('data');
 
        if (!$this->profiling) $this->startTimer('encrypt');
        $encrypted = $this->obj->encrypt($data, $this->key);
        if (!$this->profiling) $this->endTimer('encrypt');
        if (!$this->profiling) $this->startTimer('decrypt');
        $decrypted = $this->obj->decrypt($encrypted, $this->key);
        if (!$this->profiling) $this->endTimer('decrypt');
 
        if (!$this->profiling) $this->startTimer('assert');
        $this->assertEquals(strlen($data), strlen($decrypted));
        $this->assertEquals($data, $decrypted, "run $i failed: expected '***' (".strlen($data)."), actual '***' (".strlen($decrypted).")");
        if (!$this->profiling) $this->endTimer('assert');
    }
 
    function tearDown() {
        $this->obj = NULL;
    }
 
    function startTimer($label) {
        $time0 = strtok(microtime(), ' ');
        $time1 = strtok(' ');
 
        $timer              =& $this->_getTimer();
        $timer[$label][]    = (string) $time1 . substr($time0, 1);
    }
 
    function endTimer($label) {
        $time0 = strtok(microtime(), ' ');
        $time1 = strtok(' ');
 
        $timer              =& $this->_getTimer();
        $timer[$label][]    = (string) $time1 . substr($time0, 1);
    }
 
    /**
     *  @static
     */
    function &_getTimer() {
        static $timing = NULL;
 
        if (!IsSet($timing))
        {
            $time0 = strtok(microtime(), ' ');
            $time1 = strtok(' ');
 
            // start _global
            $timing = array('_global' => array((string) $time1 . substr($time0, 1)));
        }
 
        return $timing;
    }
 
    /**
     *  @static
     */
    function getTimings() {
        $time0 = strtok(microtime(), ' ');
        $time1 = strtok(' ');
 
        $timer                  =& Crypt_Xtea2Test::_getTimer();
        $timer['_global'][1]    = (string) $time1 . substr($time0, 1);
        $labels                 =  array_keys($timer);
        $results                =  array();
 
        // calculate times and calls
        sort($labels);
        foreach ($labels as $label) {
            $results[$label]['time']    = 0.0;
            $results[$label]['calls']   = 0;
 
            $n = count($timer[$label]);
            for ($i = 0; $i < $n; $i += 2) {
                $results[$label]['time'] += (float) $timer[$label][$i + 1] - $timer[$label][$i];
                ++$results[$label]['calls'];
            }
        }
 
        // calculate percentages
        foreach ($labels as $label) {
            $results[$label]['perc'] = ( $results[$label]['time'] * 100.0 ) / $results['_global']['time'];
        }
 
        // output results
        echo "Timing results:\n" .
            sprintf("%-20s %13s %8s %10s%%\n", 'Label', 'time', '#calls', 'perc') .
            str_repeat('-', 57) . "\n";
        foreach ($labels as $label) {
            printf("%-20s %13s %8lu %10s%%\n",
                    $label,
                    sprintf("%.8f", $results[$label]['time']),
                    $results[$label]['calls'],
                    sprintf("%.6f", $results[$label]['perc']));
        }
    }
}
 
?>