<?php
/**
 * tests several functions which are used to prevent xss attacks
 * 
 * @package test.util
 */

require_once('include/text.php');

class AntiXSSTest extends PHPUnit_Framework_TestCase {

	/**
	 * test, that tags are escaped
	 */
	public function testEscapeTags() {
		$invalidstring='<submit type="button" onclick="alert(\'failed!\');" />';

		$validstring=notags($invalidstring);
		$escapedString=escape_tags($invalidstring);

		$this->assertEquals('[submit type="button" onclick="alert(\'failed!\');" /]', $validstring);
		$this->assertEquals("&lt;submit type=&quot;button&quot; onclick=&quot;alert('failed!');&quot; /&gt;", $escapedString);
	}

	/**
	 *xmlify and unxmlify
	 */
	public function testXmlify() {
		$text="<tag>I want to break\n this!11!<?hard?></tag>";
		$xml=xmlify($text); 
		$retext=unxmlify($text);

		$this->assertEquals($text, $retext);
	}
	
	/**
	 * xmlify and put in a document
	 */
	public function testXmlifyDocument() {
		$tag="<tag>I want to break</tag>";
		$xml=xmlify($tag);
		$text='<text>'.$xml.'</text>'; 
		
		$xml_parser=xml_parser_create(); 
		//should be possible to parse it
		$values=array(); $index=array(); 
		$this->assertEquals(1, xml_parse_into_struct($xml_parser, $text, $values, $index)); 
		
		$this->assertEquals(array('TEXT'=>array(0)), 
				$index); 
		$this->assertEquals(array(array('tag'=>'TEXT', 'type'=>'complete', 'level'=>1, 'value'=>$tag)),
				$values);
		
		xml_parser_free($xml_parser); 
	}

	/**
	 * test hex2bin and reverse
	 */
	public function testHex2Bin() {
		$this->assertEquals(-3, hex2bin(bin2hex(-3)));
		$this->assertEquals(0, hex2bin(bin2hex(0)));
		$this->assertEquals(12, hex2bin(bin2hex(12)));
		$this->assertEquals(PHP_INT_MAX, hex2bin(bin2hex(PHP_INT_MAX)));
	}

	//function qp, quick and dirty??
	//get_mentions
	//get_contact_block, bis Zeile 538
}
?>
