The Tor Browser / file revision

 /* Any copyright is dedicated to the Public Domain.

    http://creativecommons.org/publicdomain/zero/1.0/ */

 /**

  * This file tests that, when there is an app tab that references an invalid

  * favicon, the default favicon appears the group app tab tray, instead of an

  * empty image that would not be visible.

  */

 const fi = Cc["@mozilla.org/browser/favicon-service;1"].

            getService(Ci.nsIFaviconService);

 let newTab;

 function test() {

   waitForExplicitFinish();

   newTab = gBrowser.addTab();

   showTabView(function() {

     let cw = TabView.getContentWindow();

     whenAppTabIconAdded(cw.GroupItems.groupItems[0], onTabPinned);

     gBrowser.pinTab(newTab);

   })

 }

 function onTabPinned() {

   let contentWindow = TabView.getContentWindow();

   is(contentWindow.GroupItems.groupItems.length, 1, 

      "There is one group item on startup");

   let groupItem = contentWindow.GroupItems.groupItems[0];

   let icon = contentWindow.iQ(".appTabIcon", groupItem.$appTabTray)[0];

   let $icon = contentWindow.iQ(icon);

   is($icon.data("xulTab"), newTab, 

      "The app tab icon has the right tab reference")

   // check to see whether it's showing the default one or not.

   is($icon.attr("src"), fi.defaultFavicon.spec,

      "The icon is showing the default fav icon for blank tab");

   let errorHandler = function(event) {

     newTab.removeEventListener("error", errorHandler, false);

     // since the browser code and test code are invoked when an error event is 

     // fired, a delay is used here to avoid the test code run before the browser 

     // code.

     executeSoon(function() {

       let iconSrc = $icon.attr("src");

       // with moz-anno:favicon automatically redirects to the default favIcon 

       // if the given url is invalid

       ok(iconSrc.startsWith("moz-anno:favicon:"),

          "The icon url starts with moz-anno:favicon so the default fav icon would be displayed");

       // At this point, as an additional integrity check we could also verify

       // that the iconSrc URI does not have any associated favicon data.  This

       // kind of check, however, is not easily supported by the asynchronous

       // favicon API.  Fortunately, the fact that we received the error event

       // already indicates that the original favicon was not available.

       // Morevover, since we are using a "moz-anno:favicon:" URI, we know that

       // we'll not display an empty icon, but the default favicon.

       // clean up

       gBrowser.removeTab(newTab);

       let endGame = function() {

         window.removeEventListener("tabviewhidden", endGame, false);

         ok(!TabView.isVisible(), "Tab View is hidden");

         finish();

       }

       window.addEventListener("tabviewhidden", endGame, false);

       TabView.toggle();

     });

   };

   newTab.addEventListener("error", errorHandler, false);

   newTab.linkedBrowser.loadURI(

     "http://mochi.test:8888/browser/browser/components/tabview/test/test_bug600645.html");

 }