tester.php

<?php
/*

    PHP Metamorphic Mutation Engine Tester
    ----------------------------------------------------------
    
    This scripts does an infinite loop generating different
    mutations of 'example_file.php'
    
    Runs each mutation to check if it runs fine and checks
    the ouput of every mutation against the outuput of the
    original 'example_file.php'
    
    Run it from a command line
    
    Dominika Vladimirovskaya // 2009 // Soviet Union
    dominika.vladimirov@comentalo.net
    
*/


	// Engine load
	require './inc/mutation.class.php';
	
	// Run the original test script and get the ouput
	system("php ./mutation_chamber/test_file.php > ./mutation_chamber/original.txt");
	$original=implode('',file('./mutation_chamber/original.txt'));
	
	
	
	// Endless loop   
	while(true){

		printf ( "\x1b[2J" );	// Ansi codes, clear screen
		printf ( "\x1b[H" );	// Ansi codes, cursor at home

		$aux++;
		
		echo "Mutation: $aux";
		
		// Mutation init
		$mutation=new Mutation();
		$mutation->setCode( file_get_contents('./mutation_chamber/test_file.php') );
		
		$mutation->setFrecuency('MODIFY_NUMBERS',500);				// 50% number modifications
		$mutation->setFrecuency('MODIFY_QUOTED_STRINGS',100);		// 10% quoted string modifications
		$mutation->setFrecuency('MODIFY_DOUBLE_QUOTED_STRINGS',100);// 10% double quoted string modifications
		$mutation->setFrecuency('MODIFY_VARS',500);					// 10% vars modification		
		
		$mutation->mutate();
		
		// Run the mutation
		file_put_contents("./mutation_chamber/mutation.php",$mutation->getCode());
		system("php ./mutation_chamber/mutation.php > ./mutation_chamber/mutation.txt");
		$output=implode('',file('./mutation_chamber/mutation.txt'));
		
		// If original ouput is not equal to new output then show an error message
		// and exit.
		if( $original != $output ){
			echo "\n[EPIC FAIL!]\n";
			exit;
	}
		// if equal then continue
		
		 
		
	}

?>