The Tor Browser / file revision

 // This is a sample WebappRT chrome test.  It's just a browser-chrome mochitest.

 Cu.import("resource://webapprt/modules/WebappRT.jsm");

 function test() {

   waitForExplicitFinish();

   ok(true, "true is true!");

   loadWebapp("sample.webapp", undefined, function onLoad() {

     is(document.documentElement.getAttribute("title"),

        WebappRT.config.app.manifest.name,

        "Window title should be webapp name");

     let msg = gAppBrowser.contentDocument.getElementById("msg");

     var observer = new MutationObserver(function (mutations) {

       ok(/^Webapp getSelf OK:/.test(msg.textContent),

          "The webapp should have successfully installed and updated its msg");

       finish();

     });

     observer.observe(msg, { childList: true });

   });

 }