test_backgroundtask_shouldprocessupdates.js

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/* -*- indent-tabs-mode: nil; js-indent-level: 2 -*-

 * vim: sw=4 ts=4 sts=4 et

 * 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/. */

add_task(async function test_backgroundtask_shouldprocessupdates() {

  // The task returns 81 if we should process updates, i.e.,

  // !ShouldNotProcessUpdates(), <= 80 otherwise.  xpcshell itself counts as an

  // instance, so the background task will see it and think another instance is

  // running.  N.b.: this isn't as robust as it could be: running Firefox

  // instances and parallel tests interact here (mostly harmlessly).

//

  // Since the behaviour under test (ShouldNotProcessUpdates()) happens at startup,

  // we can't easily change the lock location of the background task.

  // `shouldprocessupdates` is an updating task, but there is another instance

  // running, so we should not process updates.

  let exitCode = await do_backgroundtask("shouldprocessupdates", {

    extraArgs: ["--test-process-updates"],

});

  Assert.equal(80, exitCode);

  // If we change our lock location, the background task won't see our instance

  // running.

  let file = do_get_profile();

  file.append("customExePath");

  let syncManager = Cc["@mozilla.org/updates/update-sync-manager;1"].getService(

    Ci.nsIUpdateSyncManager

);

  syncManager.resetLock(file);

  // Since we've changed the xpcshell executable name, the background task won't

  // see us and think another instance is running.  This time, there is no

  // reason to not process updates.

  exitCode = await do_backgroundtask("shouldprocessupdates");

  Assert.equal(81, exitCode);

  // `shouldnotprocessupdates` is not a recognized updating task, so we should

  // not process updates.

  exitCode = await do_backgroundtask("shouldnotprocessupdates", {

    extraArgs: ["--test-process-updates"],

});

  Assert.equal(78, exitCode);

});