browser/components/sessionstore/test/browser_attributes.js

changeset 0
6474c204b198
     1.1 --- /dev/null	Thu Jan 01 00:00:00 1970 +0000
     1.2 +++ b/browser/components/sessionstore/test/browser_attributes.js	Wed Dec 31 06:09:35 2014 +0100
     1.3 @@ -0,0 +1,72 @@
     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 makes sure that we correctly preserve tab attributes when storing
    1.13 + * and restoring tabs. It also ensures that we skip special attributes like
    1.14 + * 'image' and 'pending' that need to be handled differently or internally.
    1.15 + */
    1.16 +
    1.17 +const PREF = "browser.sessionstore.restore_on_demand";
    1.18 +
    1.19 +function runTests() {
    1.20 +  Services.prefs.setBoolPref(PREF, true)
    1.21 +  registerCleanupFunction(() => Services.prefs.clearUserPref(PREF));
    1.22 +
    1.23 +  // Add a new tab with a nice icon.
    1.24 +  let tab = gBrowser.addTab("about:robots");
    1.25 +  yield whenBrowserLoaded(tab.linkedBrowser);
    1.26 +
    1.27 +  // Check that the tab has an 'image' attribute.
    1.28 +  ok(tab.hasAttribute("image"), "tab.image exists");
    1.29 +
    1.30 +  // Make sure we do not persist 'image' attributes.
    1.31 +  ss.persistTabAttribute("image");
    1.32 +  let {attributes} = JSON.parse(ss.getTabState(tab));
    1.33 +  ok(!("image" in attributes), "'image' attribute not saved");
    1.34 +  ok(!("custom" in attributes), "'custom' attribute not saved");
    1.35 +
    1.36 +  // Test persisting a custom attribute.
    1.37 +  tab.setAttribute("custom", "foobar");
    1.38 +  ss.persistTabAttribute("custom");
    1.39 +
    1.40 +  let {attributes} = JSON.parse(ss.getTabState(tab));
    1.41 +  is(attributes.custom, "foobar", "'custom' attribute is correct");
    1.42 +
    1.43 +  // Make sure we're backwards compatible and restore old 'image' attributes.
    1.44 +  let state = {
    1.45 +    entries: [{url: "about:mozilla"}],
    1.46 +    attributes: {custom: "foobaz", image: gBrowser.getIcon(tab)}
    1.47 +  };
    1.48 +
    1.49 +  // Prepare a pending tab waiting to be restored.
    1.50 +  whenTabRestoring(tab);
    1.51 +  yield ss.setTabState(tab, JSON.stringify(state));
    1.52 +
    1.53 +  ok(tab.hasAttribute("pending"), "tab is pending");
    1.54 +  is(gBrowser.getIcon(tab), state.attributes.image, "tab has correct icon");
    1.55 +
    1.56 +  // Let the pending tab load.
    1.57 +  gBrowser.selectedTab = tab;
    1.58 +  yield whenTabRestored(tab);
    1.59 +
    1.60 +  // Ensure no 'image' or 'pending' attributes are stored.
    1.61 +  let {attributes} = JSON.parse(ss.getTabState(tab));
    1.62 +  ok(!("image" in attributes), "'image' attribute not saved");
    1.63 +  ok(!("pending" in attributes), "'pending' attribute not saved");
    1.64 +  is(attributes.custom, "foobaz", "'custom' attribute is correct");
    1.65 +
    1.66 +  // Clean up.
    1.67 +  gBrowser.removeTab(tab);
    1.68 +}
    1.69 +
    1.70 +function whenTabRestoring(tab) {
    1.71 +  tab.addEventListener("SSTabRestoring", function onRestoring() {
    1.72 +    tab.removeEventListener("SSTabRestoring", onRestoring);
    1.73 +    executeSoon(next);
    1.74 +  });
    1.75 +}

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