The Tor Browser / file revision

 /*

  * Any copyright is dedicated to the Public Domain.

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

  */

 // Check that Dead Objects do not break the Web/Browser Consoles. See bug 883649.

 // This test does:

 // - opens a new tab,

 // - opens the Browser Console,

 // - stores a reference to the content document of the tab on the chrome window object,

 // - closes the tab,

 // - tries to use the object that was pointing to the now-defunct content

 // document. This is the dead object.

 const TEST_URI = "data:text/html;charset=utf8,<p>dead objects!";

 function test()

 {

   let hud = null;

   registerCleanupFunction(() => {

     Services.prefs.clearUserPref("devtools.chrome.enabled");

   });

   Task.spawn(runner).then(finishTest);

   function* runner() {

     Services.prefs.setBoolPref("devtools.chrome.enabled", true);

     let {tab} = yield loadTab(TEST_URI);

     info("open the browser console");

     hud = yield HUDService.toggleBrowserConsole();

     ok(hud, "browser console opened");

     hud.jsterm.clearOutput();

     // Add the reference to the content document.

     yield execute("Cu = Components.utils;" +

                   "Cu.import('resource://gre/modules/Services.jsm');" +

                   "chromeWindow = Services.wm.getMostRecentWindow('navigator:browser');" +

                   "foobarzTezt = chromeWindow.content.document;" +

                   "delete chromeWindow");

     gBrowser.removeCurrentTab();

     let msg = yield execute("foobarzTezt");

     isnot(hud.outputNode.textContent.indexOf("[object DeadObject]"), -1,

           "dead object found");

     hud.jsterm.setInputValue("foobarzTezt");

     for (let c of ".hello") {

       EventUtils.synthesizeKey(c, {}, hud.iframeWindow);

     }

     yield execute();

     isnot(hud.outputNode.textContent.indexOf("can't access dead object"), -1,

           "'cannot access dead object' message found");

     // Click the second execute output.

     let clickable = msg.querySelector("a");

     ok(clickable, "clickable object found");

     isnot(clickable.textContent.indexOf("[object DeadObject]"), -1,

           "message text check");

     msg.scrollIntoView();

     executeSoon(() => {

       EventUtils.synthesizeMouseAtCenter(clickable, {}, hud.iframeWindow);

     });

     yield hud.jsterm.once("variablesview-fetched");

     ok(true, "variables view fetched");

     msg = yield execute("delete window.foobarzTezt; 2013-26");

     isnot(msg.textContent.indexOf("1987"), -1, "result message found");

   }

   function execute(str) {

     let deferred = promise.defer();

     hud.jsterm.execute(str, (msg) => {

       deferred.resolve(msg);

     });

     return deferred.promise;

   }

 }