The Tor Browser: browser/components/sessionstore/test/browser_upgrade

Cloned upstream origin tor-browser at tor-browser-31.3.0esr-4.5-1-build1
revision ID fc1c9ff7c1b2defdbc039f12214767608f46423f for hacking purpose.

     1 /* Any copyright is dedicated to the Public Domain.

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

     4 Cu.import("resource://gre/modules/Services.jsm", this);

     5 Cu.import("resource://gre/modules/osfile.jsm", this);

     6 Cu.import("resource://gre/modules/Task.jsm", this);

     8 function test() {

     9   waitForExplicitFinish();

    11   Task.spawn(function task() {

    12     try {

    13       // Wait until initialization is complete

    14       yield SessionStore.promiseInitialized;

    16       const PREF_UPGRADE = "browser.sessionstore.upgradeBackup.latestBuildID";

    17       let buildID = Services.appinfo.platformBuildID;

    19       // Write state once before starting the test to

    20       // ensure sessionstore.js writes won't happen in between.

    21       yield forceSaveState();

    23       // Force backup to take place with a file decided by us

    24       Services.prefs.setCharPref(PREF_UPGRADE, "");

    25       let contents = "browser_upgrade_backup.js";

    26       let pathStore = OS.Path.join(OS.Constants.Path.profileDir, "sessionstore.js");

    27       yield OS.File.writeAtomic(pathStore, contents, { tmpPath: pathStore + ".tmp" });

    28       yield SessionStore._internal._performUpgradeBackup();

    29       is(Services.prefs.getCharPref(PREF_UPGRADE), buildID, "upgrade backup should be set (again)");

    31       let pathBackup = OS.Path.join(OS.Constants.Path.profileDir, "sessionstore.bak-" + Services.appinfo.platformBuildID);

    32       is((yield OS.File.exists(pathBackup)), true, "upgrade backup file has been created");

    34       let data = yield OS.File.read(pathBackup);

    35       is(new TextDecoder().decode(data), contents, "upgrade backup contains the expected contents");

    37       // Ensure that we don't re-backup by accident

    38       yield OS.File.writeAtomic(pathStore, "something else entirely", { tmpPath: pathStore + ".tmp" });

    39       yield SessionStore._internal._performUpgradeBackup();

    40       data = yield OS.File.read(pathBackup);

    41       is(new TextDecoder().decode(data), contents, "upgrade backup hasn't changed");

    43     } catch (ex) {

    44       ok(false, "Uncaught error: " + ex + " at " + ex.stack);

    45     } finally {

    46       finish();

    47     }

    48   });

    49 }

The Tor Browser / file revision