The Tor Browser / file revision

 /* Any copyright is dedicated to the Public Domain.

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

 function test() {

   TestRunner.run();

 }

 /**

  * This test ensures that after closing a window we keep its state data around

  * as long as something keeps a reference to it. It should only be possible to

  * read data after closing - writing should fail.

  */

 function runTests() {

   // Open a new window.

   let win = OpenBrowserWindow();

   yield whenDelayedStartupFinished(win, next);

   // Load some URL in the current tab.

   let flags = Ci.nsIWebNavigation.LOAD_FLAGS_REPLACE_HISTORY;

   win.gBrowser.selectedBrowser.loadURIWithFlags("about:robots", flags);

   yield whenBrowserLoaded(win.gBrowser.selectedBrowser);

   // Open a second tab and close the first one.

   let tab = win.gBrowser.addTab("about:mozilla");

   yield whenBrowserLoaded(tab.linkedBrowser);

   SyncHandlers.get(tab.linkedBrowser).flush();

   win.gBrowser.removeTab(win.gBrowser.tabs[0]);

   // Make sure our window is still tracked by sessionstore

   // and the window state is as expected.

   ok("__SSi" in win, "window is being tracked by sessionstore");

   ss.setWindowValue(win, "foo", "bar");

   checkWindowState(win);

   let state = ss.getWindowState(win);

   let closedTabData = ss.getClosedTabData(win);

   // Close our window and wait a tick.

   whenWindowClosed(win);

   yield win.close();

   // SessionStore should no longer track our window

   // but it should still report the same state.

   ok(!("__SSi" in win), "sessionstore does no longer track our window");

   checkWindowState(win);

   // Make sure we're not allowed to modify state data.

   ok(shouldThrow(() => ss.setWindowState(win, {})),

      "we're not allowed to modify state data anymore");

   ok(shouldThrow(() => ss.setWindowValue(win, "foo", "baz")),

      "we're not allowed to modify state data anymore");

 }

 function checkWindowState(window) {

   let {windows: [{tabs}]} = JSON.parse(ss.getWindowState(window));

   is(tabs.length, 1, "the window has a single tab");

   is(tabs[0].entries[0].url, "about:mozilla", "the tab is about:mozilla");

   is(ss.getClosedTabCount(window), 1, "the window has one closed tab");

   let [{state: {entries: [{url}]}}] = JSON.parse(ss.getClosedTabData(window));

   is(url, "about:robots", "the closed tab is about:robots");

   is(ss.getWindowValue(window, "foo"), "bar", "correct extData value");

 }

 function shouldThrow(f) {

   try {

     f();

   } catch (e) {

     return true;

   }

 }

 function whenWindowClosed(window) {

   window.addEventListener("SSWindowClosing", function onClosing() {

     window.removeEventListener("SSWindowClosing", onClosing);

     executeSoon(next);

   });

 }