function prepareTests(codes) {
    var _success = 0;
    var _result = document.getElementById('result');
    var _total = codes.length;

    return function runTests() {
        codes = codes || codes;

        if (!codes.length) {
            _result.innerHTML += _success + ' on ' + _total + ' tests succeed';
            return;
        }

        window.hack = false;
        var code = codes.shift();
    
        try {
            sandbox(code);
        }
        catch(e) {
            console.log(code, e);
        }
    
        // Wait to get result
        setTimeout(function(){
            _success += (window.hack ? 0 : 1);
            _result.innerHTML += '<span style="color:' + (!window.hack ? 'green">[SUCCESS]' : 'red">[FAILED]') + '</span> ' + code + '<br/>';
            runTests(codes);
        }, 20);
    };
};


var runTests = prepareTests([
    'hack = true;',
    'window.hack = true;',
    'this.hack = true;',
    'self.hack = true;',

    '(function(){ hack = true })();',
    '(function(){ this.hack = true })();',
    '(function(){ self.hack = true })();',
    '(function(){ window.hack = true })();',

    'new Function("hack = true").call();',
    'new Function("this.hack = true").call();',
    'new Function("self.hack = true").call();',
    'new Function("window.hack = true").call();',

    'new Function("hack = true").call(window);',
    'new Function("this.hack = true").call(window);',
    'new Function("self.hack = true").call(window);',
    'new Function("window.hack = true").call(window);',

    'setTimeout("hack = true", 10);',
    'setTimeout("this.hack = true", 10);',
    'setTimeout("self.hack = true", 10);',
    'setTimeout("window.hack = true", 10);',

    'setTimeout(function(){ hack = true }, 10);',
    'setTimeout(function(){ this.hack = true }, 10);',
    'setTimeout(function(){ self.hack = true }, 10);',
    'setTimeout(function(){ window.hack = true }, 10);',

    'var c = setInterval("clearInterval(c); hack = true", 10);',
    'var c = setInterval("clearInterval(c); this.hack = true", 10);',
    'var c = setInterval("clearInterval(c); self.hack = true", 10);',
    'var c = setInterval("clearInterval(c); window.hack = true", 10);',

    'var c = setInterval(function(){ clearInterval(c); hack = true }, 10);',
    'var c = setInterval(function(){ clearInterval(c); this.hack = true }, 10);',
    'var c = setInterval(function(){ clearInterval(c); self.hack = true }, 10);',
    'var c = setInterval(function(){ clearInterval(c); window.hack = true }, 10);',

    'requestAnimationFrame(function(){ hack = true });',
    'requestAnimationFrame(function(){ this.hack = true });',
    'requestAnimationFrame(function(){ self.hack = true });',
    'requestAnimationFrame(function(){ window.hack = true });',

    'var f = function(){}; f.constructor("hack = true")();',
    'File.constructor("hack = true")();',
 
    'var d = (new Image()).ownerDocument;\
     var s = d.createElement("script");\
     s.innerHTML = "hack = true";\
     d.body.appendChild(s);',
 
    'var d = (new Audio()).ownerDocument;\
     var s = d.createElement("script");\
     s.innerHTML = "hack = true";\
     d.body.appendChild(s);',
    
    '(new Image()).ownerDocument.defaultView.hack = true;',
    '(new Audio()).ownerDocument.defaultView.hack = true;',

    'result.ownerDocument.defaultView.hack = true;'
]);