The Tor Browser / file diff

     1.1 --- /dev/null	Thu Jan 01 00:00:00 1970 +0000
     1.2 +++ b/browser/components/sessionstore/test/browser_dying_cache.js	Wed Dec 31 06:09:35 2014 +0100
     1.3 @@ -0,0 +1,80 @@
     1.4 +/* Any copyright is dedicated to the Public Domain.
     1.5 + * http://creativecommons.org/publicdomain/zero/1.0/ */
     1.6 +
     1.7 +function test() {
     1.8 +  TestRunner.run();
     1.9 +}
    1.10 +
    1.11 +/**
    1.12 + * This test ensures that after closing a window we keep its state data around
    1.13 + * as long as something keeps a reference to it. It should only be possible to
    1.14 + * read data after closing - writing should fail.
    1.15 + */
    1.16 +
    1.17 +function runTests() {
    1.18 +  // Open a new window.
    1.19 +  let win = OpenBrowserWindow();
    1.20 +  yield whenDelayedStartupFinished(win, next);
    1.21 +
    1.22 +  // Load some URL in the current tab.
    1.23 +  let flags = Ci.nsIWebNavigation.LOAD_FLAGS_REPLACE_HISTORY;
    1.24 +  win.gBrowser.selectedBrowser.loadURIWithFlags("about:robots", flags);
    1.25 +  yield whenBrowserLoaded(win.gBrowser.selectedBrowser);
    1.26 +
    1.27 +  // Open a second tab and close the first one.
    1.28 +  let tab = win.gBrowser.addTab("about:mozilla");
    1.29 +  yield whenBrowserLoaded(tab.linkedBrowser);
    1.30 +  SyncHandlers.get(tab.linkedBrowser).flush();
    1.31 +  win.gBrowser.removeTab(win.gBrowser.tabs[0]);
    1.32 +
    1.33 +  // Make sure our window is still tracked by sessionstore
    1.34 +  // and the window state is as expected.
    1.35 +  ok("__SSi" in win, "window is being tracked by sessionstore");
    1.36 +  ss.setWindowValue(win, "foo", "bar");
    1.37 +  checkWindowState(win);
    1.38 +
    1.39 +  let state = ss.getWindowState(win);
    1.40 +  let closedTabData = ss.getClosedTabData(win);
    1.41 +
    1.42 +  // Close our window and wait a tick.
    1.43 +  whenWindowClosed(win);
    1.44 +  yield win.close();
    1.45 +
    1.46 +  // SessionStore should no longer track our window
    1.47 +  // but it should still report the same state.
    1.48 +  ok(!("__SSi" in win), "sessionstore does no longer track our window");
    1.49 +  checkWindowState(win);
    1.50 +
    1.51 +  // Make sure we're not allowed to modify state data.
    1.52 +  ok(shouldThrow(() => ss.setWindowState(win, {})),
    1.53 +     "we're not allowed to modify state data anymore");
    1.54 +  ok(shouldThrow(() => ss.setWindowValue(win, "foo", "baz")),
    1.55 +     "we're not allowed to modify state data anymore");
    1.56 +}
    1.57 +
    1.58 +function checkWindowState(window) {
    1.59 +  let {windows: [{tabs}]} = JSON.parse(ss.getWindowState(window));
    1.60 +  is(tabs.length, 1, "the window has a single tab");
    1.61 +  is(tabs[0].entries[0].url, "about:mozilla", "the tab is about:mozilla");
    1.62 +
    1.63 +  is(ss.getClosedTabCount(window), 1, "the window has one closed tab");
    1.64 +  let [{state: {entries: [{url}]}}] = JSON.parse(ss.getClosedTabData(window));
    1.65 +  is(url, "about:robots", "the closed tab is about:robots");
    1.66 +
    1.67 +  is(ss.getWindowValue(window, "foo"), "bar", "correct extData value");
    1.68 +}
    1.69 +
    1.70 +function shouldThrow(f) {
    1.71 +  try {
    1.72 +    f();
    1.73 +  } catch (e) {
    1.74 +    return true;
    1.75 +  }
    1.76 +}
    1.77 +
    1.78 +function whenWindowClosed(window) {
    1.79 +  window.addEventListener("SSWindowClosing", function onClosing() {
    1.80 +    window.removeEventListener("SSWindowClosing", onClosing);
    1.81 +    executeSoon(next);
    1.82 +  });
    1.83 +}