phantomjs testing script to evaluate a page, wait for a response from MathJax, and close the page. Use in conjunction with mathjax_test.js script; all this does is load the page so any errors flagged from the mathjax_test code is posted to the error database. the two scripts need each other in order to test the file. This script expects a single…

phantomjs_mathjax.

var url = require('system').args[1];
var page = require('webpage').create();

function waitFor(testFn, onSuccessFn, timeOut) {
    var start = new Date().getTime();
    var condition = false;
    var interval = setInterval(function() {
        if ( (new Date().getTime() - start < timeOut) && !condition ) {
            condition = testFn();
        } else {
            if(!condition) {
                console.log("ERROR: timeout");
                phantom.exit(1);
            } else {
                onSuccessFn();
                clearInterval(interval);
            }
        }
    }, 250);
}

function mathJaxEvaluate() {
    if (page.evaluate(function(){
            return document.querySelector('#MathJax_Message');
        })) {
        return true;
    } else {
        return false;
    }
}

function closeExit() {
    page.close();
    phantom.exit();
}

setTimeout(function() {page.open(url);}, 500);
page.onLoadFinished = function(status) {
    waitFor(mathJaxEvaluate, closeExit, 6000);
};