updateAutoPrefMigrate.js

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/* 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/.

*/

async function verifyPref(expectedValue) {

  let configValue = await UpdateUtils.getAppUpdateAutoEnabled();

  Assert.equal(

    configValue,

    expectedValue,

    "Value returned by getAppUpdateAutoEnabled should have " +

      "matched the expected value"

);

async function run_test() {

  setupTestCommon(null);

  standardInit();

  let configFile = getUpdateDirFile(FILE_UPDATE_CONFIG_JSON);

  // Test that, if there is no value to migrate, the default value is set.

  Services.prefs.setBoolPref("app.update.auto.migrated", false);

  Services.prefs.clearUserPref("app.update.auto");

  Assert.ok(!configFile.exists(), "Config file should not exist yet");

  await verifyPref(

    UpdateUtils.PER_INSTALLATION_PREFS["app.update.auto"].defaultValue

);

  debugDump("about to remove config file");

  configFile.remove(false);

  // Test migration of a |false| value

  Services.prefs.setBoolPref("app.update.auto.migrated", false);

  Services.prefs.setBoolPref("app.update.auto", false);

  Assert.ok(!configFile.exists(), "Config file should have been removed");

  await verifyPref(false);

  // Test that migration doesn't happen twice

  Services.prefs.setBoolPref("app.update.auto", true);

  await verifyPref(false);

  // If the file is deleted after migration, the default value should be

  // returned, regardless of the pref value.

  debugDump("about to remove config file");

  configFile.remove(false);

  Assert.ok(!configFile.exists(), "Config file should have been removed");

  let configValue = await UpdateUtils.getAppUpdateAutoEnabled();

  Assert.equal(

    configValue,

    true,

    "getAppUpdateAutoEnabled should have returned the default value (true)"

);

  // Setting a new value should cause the value to get written out again

  await UpdateUtils.setAppUpdateAutoEnabled(false);

  await verifyPref(false);

  // Test migration of a |true| value

  Services.prefs.setBoolPref("app.update.auto.migrated", false);

  Services.prefs.setBoolPref("app.update.auto", true);

  configFile.remove(false);

  Assert.ok(

    !configFile.exists(),

    "App update config file should have been removed"

);

  await verifyPref(true);

  // Test that setting app.update.auto without migrating also works

  await UpdateUtils.setAppUpdateAutoEnabled(false);

  await verifyPref(false);

  doTestFinish();