The Tor Browser: addon-sdk/source/test/tabs/test-firefox-tabs.js@ac0c01689b40 (annotated)

addon-sdk/source/test/tabs/test-firefox-tabs.js@ac0c01689b40 (annotated)

addon-sdk/source/test/tabs/test-firefox-tabs.js

Thu, 15 Jan 2015 15:59:08 +0100

author: Michael Schloh von Bennewitz <michael@schloh.com>
date: Thu, 15 Jan 2015 15:59:08 +0100
branch: TOR_BUG_9701
changeset 10: ac0c01689b40
permissions: -rw-r--r--

Implement a real Private Browsing Mode condition by changing the API/ABI;
This solves Tor bug #9701, complying with disk avoidance documented in
https://www.torproject.org/projects/torbrowser/design/#disk-avoidance.

 /* This Source Code Form is subject to the terms of the Mozilla Public
  * License, v. 2.0. If a copy of the MPL was not distributed with this
  * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
 'use strict';
 const { Cc, Ci } = require('chrome');
 const { Loader } = require('sdk/test/loader');
 const { setTimeout } = require('sdk/timers');
 const { getOwnerWindow } = require('sdk/private-browsing/window/utils');
 const { windows, onFocus, getMostRecentBrowserWindow } = require('sdk/window/utils');
 const { open, focus, close } = require('sdk/window/helpers');
 const tabs = require('sdk/tabs');
 const { browserWindows } = require('sdk/windows');
 const { set: setPref } = require("sdk/preferences/service");
 const DEPRECATE_PREF = "devtools.errorconsole.deprecation_warnings";
 const fixtures = require("../fixtures");
 // Bug 682681 - tab.title should never be empty
 exports.testBug682681_aboutURI = function(assert, done) {
   let url = 'chrome://browser/locale/tabbrowser.properties';
   let stringBundle = Cc["@mozilla.org/intl/stringbundle;1"].
                         getService(Ci.nsIStringBundleService).
                         createBundle(url);
   let emptyTabTitle = stringBundle.GetStringFromName('tabs.emptyTabTitle');
   tabs.on('ready', function onReady(tab) {
     tabs.removeListener('ready', onReady);
     assert.equal(tab.title,
                      emptyTabTitle,
                      "title of about: tab is not blank");
     tab.close(done);
   });
   // open a about: url
   tabs.open({
     url: "about:blank",
     inBackground: true
   });
 };
 // related to Bug 682681
 exports.testTitleForDataURI = function(assert, done) {
   tabs.open({
     url: "data:text/html;charset=utf-8,<title>tab</title>",
     inBackground: true,
     onReady: function(tab) {
       assert.equal(tab.title, "tab", "data: title is not Connecting...");
       tab.close(done);
     }
   });
 };
 // TEST: 'BrowserWindow' instance creation on tab 'activate' event
 // See bug 648244: there was a infinite loop.
 exports.testBrowserWindowCreationOnActivate = function(assert, done) {
   let windows = require("sdk/windows").browserWindows;
   let gotActivate = false;
   tabs.once('activate', function onActivate(eventTab) {
     assert.ok(windows.activeWindow, "Is able to fetch activeWindow");
     gotActivate = true;
   });
   open().then(function(window) {
     assert.ok(gotActivate, "Received activate event");
     return close(window);
   }).then(done).then(null, assert.fail);
 }
 // TEST: tab unloader
 exports.testAutomaticDestroyEventOpen = function(assert, done) {
   let called = false;
   let loader = Loader(module);
   let tabs2 = loader.require("sdk/tabs");
   tabs2.on('open', _ => called = true);
   // Fire a tab event and ensure that the destroyed tab is inactive
   tabs.once('open', tab => {
     setTimeout(_ => {
       assert.ok(!called, "Unloaded tab module is destroyed and inactive");
       tab.close(done);
     });
   });
   loader.unload();
   tabs.open("data:text/html;charset=utf-8,testAutomaticDestroyEventOpen");
 };
 exports.testAutomaticDestroyEventActivate = function(assert, done) {
   let called = false;
   let loader = Loader(module);
   let tabs2 = loader.require("sdk/tabs");
   tabs2.on('activate', _ => called = true);
   // Fire a tab event and ensure that the destroyed tab is inactive
   tabs.once('activate', tab => {
     setTimeout(_ => {
       assert.ok(!called, "Unloaded tab module is destroyed and inactive");
       tab.close(done);
     });
   });
   loader.unload();
   tabs.open("data:text/html;charset=utf-8,testAutomaticDestroyEventActivate");
 };
 exports.testAutomaticDestroyEventDeactivate = function(assert, done) {
   let called = false;
   let currentTab = tabs.activeTab;
   let loader = Loader(module);
   let tabs2 = loader.require("sdk/tabs");
   tabs.open({
     url: "data:text/html;charset=utf-8,testAutomaticDestroyEventDeactivate",
     onActivate: _ => setTimeout(_ => {
       tabs2.on('deactivate', _ => called = true);
       // Fire a tab event and ensure that the destroyed tab is inactive
       tabs.once('deactivate', tab => {
         setTimeout(_ => {
           assert.ok(!called, "Unloaded tab module is destroyed and inactive");
           tab.close(done);
         });
       });
       loader.unload();
       currentTab.activate();
     })
   });
 };
 exports.testAutomaticDestroyEventClose = function(assert, done) {
   let called = false;
   let loader = Loader(module);
   let tabs2 = loader.require("sdk/tabs");
   tabs.open({
     url: "data:text/html;charset=utf-8,testAutomaticDestroyEventClose",
     onReady: tab => {
       tabs2.on('close', _ => called = true);
       // Fire a tab event and ensure that the destroyed tab is inactive
       tabs.once('close', tab => {
         setTimeout(_ => {
           assert.ok(!called, "Unloaded tab module is destroyed and inactive");
           done();
         });
       });
       loader.unload();
       tab.close();
     }
   });
 };
 exports.testTabPropertiesInNewWindow = function(assert, done) {
   let warning = "DEPRECATED: tab.favicon is deprecated, please use require(\"sdk/places/favicon\").getFavicon instead.\n"
   const { LoaderWithFilteredConsole } = require("sdk/test/loader");
   let loader = LoaderWithFilteredConsole(module, function(type, message) {
     if (type == "error" && message.substring(0, warning.length) == warning)
       return false;
     return true;
   });
   let tabs = loader.require('sdk/tabs');
   let { getOwnerWindow } = loader.require('sdk/private-browsing/window/utils');
   let count = 0;
   function onReadyOrLoad (tab) {
     if (count++) {
       close(getOwnerWindow(tab)).then(done).then(null, assert.fail);
     }
   }
   let url = "data:text/html;charset=utf-8,<html><head><title>foo</title></head><body>foo</body></html>";
   tabs.open({
     inNewWindow: true,
     url: url,
     onReady: function(tab) {
       assert.equal(tab.title, "foo", "title of the new tab matches");
       assert.equal(tab.url, url, "URL of the new tab matches");
       assert.ok(tab.favicon, "favicon of the new tab is not empty");
       assert.equal(tab.style, null, "style of the new tab matches");
       assert.equal(tab.index, 0, "index of the new tab matches");
       assert.notEqual(tab.getThumbnail(), null, "thumbnail of the new tab matches");
       assert.notEqual(tab.id, null, "a tab object always has an id property.");
       onReadyOrLoad(tab);
     },
     onLoad: function(tab) {
       assert.equal(tab.title, "foo", "title of the new tab matches");
       assert.equal(tab.url, url, "URL of the new tab matches");
       assert.ok(tab.favicon, "favicon of the new tab is not empty");
       assert.equal(tab.style, null, "style of the new tab matches");
       assert.equal(tab.index, 0, "index of the new tab matches");
       assert.notEqual(tab.getThumbnail(), null, "thumbnail of the new tab matches");
       assert.notEqual(tab.id, null, "a tab object always has an id property.");
       onReadyOrLoad(tab);
     }
   });
 };
 exports.testTabPropertiesInSameWindow = function(assert, done) {
   let warning = "DEPRECATED: tab.favicon is deprecated, please use require(\"sdk/places/favicon\").getFavicon instead.\n"
   const { LoaderWithFilteredConsole } = require("sdk/test/loader");
   let loader = LoaderWithFilteredConsole(module, function(type, message) {
     if (type == "error" && message.substring(0, warning.length) == warning)
       return false;
     return true;
   });
   let tabs = loader.require('sdk/tabs');
   // Get current count of tabs so we know the index of the
   // new tab, bug 893846
   let tabCount = tabs.length;
   let count = 0;
   function onReadyOrLoad (tab) {
     if (count++) {
       tab.close(done);
     }
   }
   let url = "data:text/html;charset=utf-8,<html><head><title>foo</title></head><body>foo</body></html>";
   tabs.open({
     url: url,
     onReady: function(tab) {
       assert.equal(tab.title, "foo", "title of the new tab matches");
       assert.equal(tab.url, url, "URL of the new tab matches");
       assert.ok(tab.favicon, "favicon of the new tab is not empty");
       assert.equal(tab.style, null, "style of the new tab matches");
       assert.equal(tab.index, tabCount, "index of the new tab matches");
       assert.notEqual(tab.getThumbnail(), null, "thumbnail of the new tab matches");
       assert.notEqual(tab.id, null, "a tab object always has an id property.");
       onReadyOrLoad(tab);
     },
     onLoad: function(tab) {
       assert.equal(tab.title, "foo", "title of the new tab matches");
       assert.equal(tab.url, url, "URL of the new tab matches");
       assert.ok(tab.favicon, "favicon of the new tab is not empty");
       assert.equal(tab.style, null, "style of the new tab matches");
       assert.equal(tab.index, tabCount, "index of the new tab matches");
       assert.notEqual(tab.getThumbnail(), null, "thumbnail of the new tab matches");
       assert.notEqual(tab.id, null, "a tab object always has an id property.");
       onReadyOrLoad(tab);
     }
   });
 };
 // TEST: tab properties
 exports.testTabContentTypeAndReload = function(assert, done) {
   open().then(focus).then(function(window) {
     let url = "data:text/html;charset=utf-8,<html><head><title>foo</title></head><body>foo</body></html>";
     let urlXML = "data:text/xml;charset=utf-8,<foo>bar</foo>";
     tabs.open({
       url: url,
       onReady: function(tab) {
         if (tab.url === url) {
           assert.equal(tab.contentType, "text/html");
           tab.url = urlXML;
         }
         else {
           assert.equal(tab.contentType, "text/xml");
           close(window).then(done).then(null, assert.fail);
         }
       }
     });
   });
 };
 // TEST: tabs iterator and length property
 exports.testTabsIteratorAndLength = function(assert, done) {
   open(null, { features: { chrome: true, toolbar: true } }).then(focus).then(function(window) {
     let startCount = 0;
     for each (let t in tabs) startCount++;
     assert.equal(startCount, tabs.length, "length property is correct");
     let url = "data:text/html;charset=utf-8,default";
     tabs.open(url);
     tabs.open(url);
     tabs.open({
       url: url,
       onOpen: function(tab) {
         let count = 0;
         for each (let t in tabs) count++;
         assert.equal(count, startCount + 3, "iterated tab count matches");
         assert.equal(startCount + 3, tabs.length, "iterated tab count matches length property");
         close(window).then(done).then(null, assert.fail);
       }
     });
   });
 };
 // TEST: tab.url setter
 exports.testTabLocation = function(assert, done) {
   open().then(focus).then(function(window) {
     let url1 = "data:text/html;charset=utf-8,foo";
     let url2 = "data:text/html;charset=utf-8,bar";
     tabs.on('ready', function onReady(tab) {
       if (tab.url != url2)
         return;
       tabs.removeListener('ready', onReady);
       assert.pass("tab.load() loaded the correct url");
       close(window).then(done).then(null, assert.fail);
     });
     tabs.open({
       url: url1,
       onOpen: function(tab) {
         tab.url = url2
       }
     });
   });
 };
 // TEST: tab.close()
 exports.testTabClose = function(assert, done) {
   let testName = "testTabClose";
   let url = "data:text/html;charset=utf-8," + testName;
   assert.notEqual(tabs.activeTab.url, url, "tab is not the active tab");
   tabs.once('ready', function onReady(tab) {
     assert.equal(tabs.activeTab.url, tab.url, "tab is now the active tab");
     assert.equal(url, tab.url, "tab url is the test url");
     let secondOnCloseCalled = false;
     // Bug 699450: Multiple calls to tab.close should not throw
     tab.close(function() secondOnCloseCalled = true);
     try {
       tab.close(function () {
         assert.notEqual(tabs.activeTab.url, url, "tab is no longer the active tab");
         assert.ok(secondOnCloseCalled,
           "The immediate second call to tab.close happened");
         assert.notEqual(tabs.activeTab.url, url, "tab is no longer the active tab");
         done();
       });
     }
     catch(e) {
       assert.fail("second call to tab.close() thrown an exception: " + e);
     }
   });
   tabs.open(url);
 };
 // TEST: tab.move()
 exports.testTabMove = function(assert, done) {
   open().then(focus).then(function(window) {
     let url = "data:text/html;charset=utf-8,foo";
     tabs.open({
       url: url,
       onOpen: function(tab) {
         assert.equal(tab.index, 1, "tab index before move matches");
         tab.index = 0;
         assert.equal(tab.index, 0, "tab index after move matches");
         close(window).then(done).then(null, assert.fail);
       }
     });
   }).then(null, assert.fail);
 };
 // TEST: open tab with default options
 exports.testOpen = function(assert, done) {
   let url = "data:text/html;charset=utf-8,default";
   tabs.open({
     url: url,
     onReady: function(tab) {
       assert.equal(tab.url, url, "URL of the new tab matches");
       assert.equal(tab.isPinned, false, "The new tab is not pinned");
       tab.close(done);
     }
   });
 };
 // TEST: opening a pinned tab
 exports.testOpenPinned = function(assert, done) {
   let url = "data:text/html;charset=utf-8,default";
   tabs.open({
     url: url,
     isPinned: true,
     onOpen: function(tab) {
       assert.equal(tab.isPinned, true, "The new tab is pinned");
       tab.close(done);
     }
   });
 };
 // TEST: pin/unpin opened tab
 exports.testPinUnpin = function(assert, done) {
   let url = "data:text/html;charset=utf-8,default";
   tabs.open({
     url: url,
     inBackground: true,
     onOpen: function(tab) {
       tab.pin();
       assert.equal(tab.isPinned, true, "The tab was pinned correctly");
       tab.unpin();
       assert.equal(tab.isPinned, false, "The tab was unpinned correctly");
       tab.close(done);
     }
   });
 }
 // TEST: open tab in background
 exports.testInBackground = function(assert, done) {
   let window = getMostRecentBrowserWindow();
   let activeUrl = tabs.activeTab.url;
   let url = "data:text/html;charset=utf-8,background";
   assert.equal(getMostRecentBrowserWindow(), window, "getMostRecentBrowserWindow() matches this window");
   tabs.on('ready', function onReady(tab) {
     tabs.removeListener('ready', onReady);
     assert.equal(tabs.activeTab.url, activeUrl, "URL of active tab has not changed");
     assert.equal(tab.url, url, "URL of the new background tab matches");
     assert.equal(getMostRecentBrowserWindow(), window, "a new window was not opened");
     assert.notEqual(tabs.activeTab.url, url, "URL of active tab is not the new URL");
     tab.close(done);
   });
   tabs.open({
     url: url,
     inBackground: true
   });
 }
 // TEST: open tab in new window
 exports.testOpenInNewWindow = function(assert, done) {
   let startWindowCount = windows().length;
   let url = "data:text/html;charset=utf-8,testOpenInNewWindow";
   tabs.open({
     url: url,
     inNewWindow: true,
     onReady: function(tab) {
       let newWindow = getOwnerWindow(tab);
       assert.equal(windows().length, startWindowCount + 1, "a new window was opened");
       onFocus(newWindow).then(function() {
         assert.equal(getMostRecentBrowserWindow(), newWindow, "new window is active");
         assert.equal(tab.url, url, "URL of the new tab matches");
         assert.equal(newWindow.content.location, url, "URL of new tab in new window matches");
         assert.equal(tabs.activeTab.url, url, "URL of activeTab matches");
         return close(newWindow).then(done);
       }).then(null, assert.fail);
     }
   });
 }
 // Test tab.open inNewWindow + onOpen combination
 exports.testOpenInNewWindowOnOpen = function(assert, done) {
   let startWindowCount = windows().length;
   let url = "data:text/html;charset=utf-8,newwindow";
   tabs.open({
     url: url,
     inNewWindow: true,
     onOpen: function(tab) {
       let newWindow = getOwnerWindow(tab);
       onFocus(newWindow).then(function() {
         assert.equal(windows().length, startWindowCount + 1, "a new window was opened");
         assert.equal(getMostRecentBrowserWindow(), newWindow, "new window is active");
         close(newWindow).then(done).then(null, assert.fail);
       });
     }
   });
 };
 // TEST: onOpen event handler
 exports.testTabsEvent_onOpen = function(assert, done) {
   open().then(focus).then(window => {
     let url = "data:text/html;charset=utf-8,1";
     let eventCount = 0;
     // add listener via property assignment
     function listener1(tab) {
       eventCount++;
     };
     tabs.on('open', listener1);
     // add listener via collection add
     tabs.on('open', function listener2(tab) {
       assert.equal(++eventCount, 2, "both listeners notified");
       tabs.removeListener('open', listener1);
       tabs.removeListener('open', listener2);
       close(window).then(done).then(null, assert.fail);
     });
     tabs.open(url);
   }).then(null, assert.fail);
 };
 // TEST: onClose event handler
 exports.testTabsEvent_onClose = function(assert, done) {
   open().then(focus).then(window => {
     let url = "data:text/html;charset=utf-8,onclose";
     let eventCount = 0;
     // add listener via property assignment
     function listener1(tab) {
       eventCount++;
     }
     tabs.on('close', listener1);
     // add listener via collection add
     tabs.on('close', function listener2(tab) {
       assert.equal(++eventCount, 2, "both listeners notified");
       tabs.removeListener('close', listener1);
       tabs.removeListener('close', listener2);
       close(window).then(done).then(null, assert.fail);
     });
     tabs.on('ready', function onReady(tab) {
       tabs.removeListener('ready', onReady);
       tab.close();
     });
     tabs.open(url);
   }).then(null, assert.fail);
 };
 // TEST: onClose event handler when a window is closed
 exports.testTabsEvent_onCloseWindow = function(assert, done) {
   let closeCount = 0;
   let individualCloseCount = 0;
   open().then(focus).then(window => {
     assert.pass('opened a new window');
     tabs.on("close", function listener() {
       if (++closeCount == 4) {
         tabs.removeListener("close", listener);
       }
     });
     function endTest() {
       if (++individualCloseCount < 3) {
         assert.pass('tab closed ' + individualCloseCount);
         return;
       }
       assert.equal(closeCount, 4, "Correct number of close events received");
       assert.equal(individualCloseCount, 3,
                    "Each tab with an attached onClose listener received a close " +
                    "event when the window was closed");
       done();
     }
     // One tab is already open with the window
     let openTabs = 1;
     function testCasePossiblyLoaded() {
       if (++openTabs == 4) {
         window.close();
       }
       assert.pass('tab opened ' + openTabs);
     }
     tabs.open({
       url: "data:text/html;charset=utf-8,tab2",
       onOpen: testCasePossiblyLoaded,
       onClose: endTest
     });
     tabs.open({
       url: "data:text/html;charset=utf-8,tab3",
       onOpen: testCasePossiblyLoaded,
       onClose: endTest
     });
     tabs.open({
       url: "data:text/html;charset=utf-8,tab4",
       onOpen: testCasePossiblyLoaded,
       onClose: endTest
     });
   }).then(null, assert.fail);
 }
 // TEST: onReady event handler
 exports.testTabsEvent_onReady = function(assert, done) {
   open().then(focus).then(window => {
     let url = "data:text/html;charset=utf-8,onready";
     let eventCount = 0;
     // add listener via property assignment
     function listener1(tab) {
       eventCount++;
     };
     tabs.on('ready', listener1);
     // add listener via collection add
     tabs.on('ready', function listener2(tab) {
       assert.equal(++eventCount, 2, "both listeners notified");
       tabs.removeListener('ready', listener1);
       tabs.removeListener('ready', listener2);
       close(window).then(done);
     });
     tabs.open(url);
   }).then(null, assert.fail);
 };
 // TEST: onActivate event handler
 exports.testTabsEvent_onActivate = function(assert, done) {
   open().then(focus).then(window => {
     let url = "data:text/html;charset=utf-8,onactivate";
     let eventCount = 0;
     // add listener via property assignment
     function listener1(tab) {
       eventCount++;
     };
     tabs.on('activate', listener1);
     // add listener via collection add
     tabs.on('activate', function listener2(tab) {
       assert.equal(++eventCount, 2, "both listeners notified");
       tabs.removeListener('activate', listener1);
       tabs.removeListener('activate', listener2);
       close(window).then(done).then(null, assert.fail);
     });
     tabs.open(url);
   }).then(null, assert.fail);
 };
 // onDeactivate event handler
 exports.testTabsEvent_onDeactivate = function(assert, done) {
   open().then(focus).then(window => {
     let url = "data:text/html;charset=utf-8,ondeactivate";
     let eventCount = 0;
     // add listener via property assignment
     function listener1(tab) {
       eventCount++;
     };
     tabs.on('deactivate', listener1);
     // add listener via collection add
     tabs.on('deactivate', function listener2(tab) {
       assert.equal(++eventCount, 2, "both listeners notified");
       tabs.removeListener('deactivate', listener1);
       tabs.removeListener('deactivate', listener2);
       close(window).then(done).then(null, assert.fail);
     });
     tabs.on('open', function onOpen(tab) {
       tabs.removeListener('open', onOpen);
       tabs.open("data:text/html;charset=utf-8,foo");
     });
     tabs.open(url);
   }).then(null, assert.fail);
 };
 // pinning
 exports.testTabsEvent_pinning = function(assert, done) {
   open().then(focus).then(window => {
     let url = "data:text/html;charset=utf-8,1";
     tabs.on('open', function onOpen(tab) {
       tabs.removeListener('open', onOpen);
       tab.pin();
     });
     tabs.on('pinned', function onPinned(tab) {
       tabs.removeListener('pinned', onPinned);
       assert.ok(tab.isPinned, "notified tab is pinned");
       tab.unpin();
     });
     tabs.on('unpinned', function onUnpinned(tab) {
       tabs.removeListener('unpinned', onUnpinned);
       assert.ok(!tab.isPinned, "notified tab is not pinned");
       close(window).then(done).then(null, assert.fail);
     });
     tabs.open(url);
   }).then(null, assert.fail);
 };
 // TEST: per-tab event handlers
 exports.testPerTabEvents = function(assert, done) {
   open().then(focus).then(window => {
     let eventCount = 0;
     tabs.open({
       url: "data:text/html;charset=utf-8,foo",
       onOpen: function(tab) {
         // add listener via property assignment
         function listener1() {
           eventCount++;
         };
         tab.on('ready', listener1);
         // add listener via collection add
         tab.on('ready', function listener2() {
           assert.equal(eventCount, 1, "both listeners notified");
           tab.removeListener('ready', listener1);
           tab.removeListener('ready', listener2);
           close(window).then(done).then(null, assert.fail);
         });
       }
     });
   }).then(null, assert.fail);
 };
 exports.testAttachOnOpen = function (assert, done) {
   // Take care that attach has to be called on tab ready and not on tab open.
   open().then(focus).then(window => {
     tabs.open({
       url: "data:text/html;charset=utf-8,foobar",
       onOpen: function (tab) {
         let worker = tab.attach({
           contentScript: 'self.postMessage(document.location.href); ',
           onMessage: function (msg) {
             assert.equal(msg, "about:blank",
               "Worker document url is about:blank on open");
             worker.destroy();
             close(window).then(done).then(null, assert.fail);
           }
         });
       }
     });
   }).then(null, assert.fail);
 }
 exports.testAttachOnMultipleDocuments = function (assert, done) {
   // Example of attach that process multiple tab documents
   open().then(focus).then(window => {
     let firstLocation = "data:text/html;charset=utf-8,foobar";
     let secondLocation = "data:text/html;charset=utf-8,bar";
     let thirdLocation = "data:text/html;charset=utf-8,fox";
     let onReadyCount = 0;
     let worker1 = null;
     let worker2 = null;
     let detachEventCount = 0;
     tabs.open({
       url: firstLocation,
       onReady: function (tab) {
         onReadyCount++;
         if (onReadyCount == 1) {
           worker1 = tab.attach({
             contentScript: 'self.on("message", ' +
                            '  function () self.postMessage(document.location.href)' +
                            ');',
             onMessage: function (msg) {
               assert.equal(msg, firstLocation,
                                "Worker url is equal to the 1st document");
               tab.url = secondLocation;
             },
             onDetach: function () {
               detachEventCount++;
               assert.pass("Got worker1 detach event");
               assert.throws(function () {
                   worker1.postMessage("ex-1");
                 },
                 /Couldn't find the worker/,
                 "postMessage throw because worker1 is destroyed");
               checkEnd();
             }
           });
           worker1.postMessage("new-doc-1");
         }
         else if (onReadyCount == 2) {
           worker2 = tab.attach({
             contentScript: 'self.on("message", ' +
                            '  function () self.postMessage(document.location.href)' +
                            ');',
             onMessage: function (msg) {
               assert.equal(msg, secondLocation,
                                "Worker url is equal to the 2nd document");
               tab.url = thirdLocation;
             },
             onDetach: function () {
               detachEventCount++;
               assert.pass("Got worker2 detach event");
               assert.throws(function () {
                   worker2.postMessage("ex-2");
                 },
                 /Couldn't find the worker/,
                 "postMessage throw because worker2 is destroyed");
               checkEnd();
             }
           });
           worker2.postMessage("new-doc-2");
         }
         else if (onReadyCount == 3) {
           tab.close();
         }
       }
     });
     function checkEnd() {
       if (detachEventCount != 2)
         return;
       assert.pass("Got all detach events");
       close(window).then(done).then(null, assert.fail);
     }
   }).then(null, assert.fail);
 }
 exports.testAttachWrappers = function (assert, done) {
   // Check that content script has access to wrapped values by default
   open().then(focus).then(window => {
     let document = "data:text/html;charset=utf-8,<script>var globalJSVar = true; " +
                    "                       document.getElementById = 3;</script>";
     let count = 0;
     tabs.open({
       url: document,
       onReady: function (tab) {
         let worker = tab.attach({
           contentScript: 'try {' +
                          '  self.postMessage(!("globalJSVar" in window));' +
                          '  self.postMessage(typeof window.globalJSVar == "undefined");' +
                          '} catch(e) {' +
                          '  self.postMessage(e.message);' +
                          '}',
           onMessage: function (msg) {
             assert.equal(msg, true, "Worker has wrapped objects ("+count+")");
             if (count++ == 1)
               close(window).then(done).then(null, assert.fail);
           }
         });
       }
     });
   }).then(null, assert.fail);
 }
 /*
 // We do not offer unwrapped access to DOM since bug 601295 landed
 // See 660780 to track progress of unwrap feature
 exports.testAttachUnwrapped = function (assert, done) {
   // Check that content script has access to unwrapped values through unsafeWindow
   openBrowserWindow(function(window, browser) {
     let document = "data:text/html;charset=utf-8,<script>var globalJSVar=true;</script>";
     let count = 0;
     tabs.open({
       url: document,
       onReady: function (tab) {
         let worker = tab.attach({
           contentScript: 'try {' +
                          '  self.postMessage(unsafeWindow.globalJSVar);' +
                          '} catch(e) {' +
                          '  self.postMessage(e.message);' +
                          '}',
           onMessage: function (msg) {
             assert.equal(msg, true, "Worker has access to javascript content globals ("+count+")");
             close(window).then(done);
           }
         });
       }
     });
   });
 }
 */
 exports['test window focus changes active tab'] = function(assert, done) {
   let url1 = "data:text/html;charset=utf-8," + encodeURIComponent("test window focus changes active tab</br><h1>Window #1");
   let win1 = openBrowserWindow(function() {
     assert.pass("window 1 is open");
     let win2 = openBrowserWindow(function() {
       assert.pass("window 2 is open");
       focus(win2).then(function() {
         tabs.on("activate", function onActivate(tab) {
           tabs.removeListener("activate", onActivate);
           assert.pass("activate was called on windows focus change.");
           assert.equal(tab.url, url1, 'the activated tab url is correct');
           return close(win2).then(function() {
             assert.pass('window 2 was closed');
             return close(win1);
           }).then(done).then(null, assert.fail);
         });
         win1.focus();
       });
     }, "data:text/html;charset=utf-8,test window focus changes active tab</br><h1>Window #2");
   }, url1);
 };
 exports['test ready event on new window tab'] = function(assert, done) {
   let uri = encodeURI("data:text/html;charset=utf-8,Waiting for ready event!");
   require("sdk/tabs").on("ready", function onReady(tab) {
     if (tab.url === uri) {
       require("sdk/tabs").removeListener("ready", onReady);
       assert.pass("ready event was emitted");
       close(window).then(done).then(null, assert.fail);
     }
   });
   let window = openBrowserWindow(function(){}, uri);
 };
 exports['test unique tab ids'] = function(assert, done) {
   var windows = require('sdk/windows').browserWindows;
   var { all, defer } = require('sdk/core/promise');
   function openWindow() {
     let deferred = defer();
     let win = windows.open({
       url: "data:text/html;charset=utf-8,<html>foo</html>",
     });
     win.on('open', function(window) {
       assert.ok(window.tabs.length);
       assert.ok(window.tabs.activeTab);
       assert.ok(window.tabs.activeTab.id);
       deferred.resolve({
         id: window.tabs.activeTab.id,
         win: win
       });
     });
     return deferred.promise;
   }
   var one = openWindow(), two = openWindow();
   all([one, two]).then(function(results) {
     assert.notEqual(results[0].id, results[1].id, "tab Ids should not be equal.");
     results[0].win.close();
     results[1].win.close();
     done();
   });
 }
 // related to Bug 671305
 exports.testOnLoadEventWithDOM = function(assert, done) {
   let count = 0;
   let title = 'testOnLoadEventWithDOM';
   // open a about: url
   tabs.open({
     url: 'data:text/html;charset=utf-8,<title>' + title + '</title>',
     inBackground: true,
     onLoad: function(tab) {
       assert.equal(tab.title, title, 'tab passed in as arg, load called');
       if (++count > 1) {
         assert.pass('onLoad event called on reload');
         tab.close(done);
       }
       else {
         assert.pass('first onLoad event occured');
         tab.reload();
       }
     }
   });
 };
 // related to Bug 671305
 exports.testOnLoadEventWithImage = function(assert, done) {
   let count = 0;
   tabs.open({
     url: fixtures.url('Firefox.jpg'),
     inBackground: true,
     onLoad: function(tab) {
       if (++count > 1) {
         assert.pass('onLoad event called on reload with image');
         tab.close(done);
       }
       else {
         assert.pass('first onLoad event occured');
         tab.reload();
       }
     }
   });
 };
 exports.testFaviconGetterDeprecation = function (assert, done) {
   setPref(DEPRECATE_PREF, true);
   const { LoaderWithHookedConsole } = require("sdk/test/loader");
   let { loader, messages } = LoaderWithHookedConsole(module);
   let tabs = loader.require('sdk/tabs');
   tabs.open({
     url: 'data:text/html;charset=utf-8,',
     onOpen: function (tab) {
       let favicon = tab.favicon;
       assert.ok(messages.length === 1, 'only one error is dispatched');
       assert.ok(messages[0].type, 'error', 'the console message is an error');
       let msg = messages[0].msg;
       assert.ok(msg.indexOf('tab.favicon is deprecated') !== -1,
         'message contains the given message');
       tab.close(done);
       loader.unload();
     }
   });
 }
 /******************* helpers *********************/
 // Utility function to open a new browser window.
 function openBrowserWindow(callback, url) {
   let ww = Cc["@mozilla.org/embedcomp/window-watcher;1"].
            getService(Ci.nsIWindowWatcher);
   let urlString = Cc["@mozilla.org/supports-string;1"].
                   createInstance(Ci.nsISupportsString);
   urlString.data = url;
   let window = ww.openWindow(null, "chrome://browser/content/browser.xul",
                              "_blank", "chrome,all,dialog=no", urlString);
   if (callback) {
     window.addEventListener("load", function onLoad(event) {
       if (event.target && event.target.defaultView == window) {
         window.removeEventListener("load", onLoad, true);
         let browsers = window.document.getElementsByTagName("tabbrowser");
         try {
           setTimeout(function () {
             callback(window, browsers[0]);
           }, 10);
         }
         catch (e) {
           console.exception(e);
         }
       }
     }, true);
   }
   return window;
 }
 require('sdk/test').run(exports);