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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/.
*/
ChromeUtils.defineESModuleGetters(this, {
BackgroundUpdate: "resource://gre/modules/BackgroundUpdate.sys.mjs",
});
const transitionPerformedPref = "app.update.background.rolledout";
const backgroundUpdateEnabledPref = "app.update.background.enabled";
const defaultPrefValue =
UpdateUtils.PER_INSTALLATION_PREFS[backgroundUpdateEnabledPref].defaultValue;
async function testTransition(options) {
Services.prefs.clearUserPref(transitionPerformedPref);
await UpdateUtils.writeUpdateConfigSetting(
backgroundUpdateEnabledPref,
options.initialDefaultValue,
{ setDefaultOnly: true }
);
await UpdateUtils.writeUpdateConfigSetting(
backgroundUpdateEnabledPref,
options.initialUserValue
);
BackgroundUpdate.ensureExperimentToRolloutTransitionPerformed();
Assert.equal(
await UpdateUtils.readUpdateConfigSetting(backgroundUpdateEnabledPref),
options.expectedPostTransitionValue,
"Post transition option value does not match the expected value"
);
// Make sure that we only do the transition once.
// If we change the default value, then change the user value to the same
// thing, we will end up with only a default value and no saved user value.
// This allows us to ensure that we read the default value back out, if it is
// changed.
await UpdateUtils.writeUpdateConfigSetting(
backgroundUpdateEnabledPref,
!defaultPrefValue,
{ setDefaultOnly: true }
);
await UpdateUtils.writeUpdateConfigSetting(
backgroundUpdateEnabledPref,
!defaultPrefValue
);
BackgroundUpdate.ensureExperimentToRolloutTransitionPerformed();
Assert.equal(
await UpdateUtils.readUpdateConfigSetting(backgroundUpdateEnabledPref),
!defaultPrefValue,
"Transition should not change the pref value if it already ran"
);
}
async function run_test() {
setupTestCommon(null);
standardInit();
// The setup functions we use for update testing typically allow for update.
// But we are just testing preferences here. We don't want anything to
// actually attempt to update. Also, because we are messing with the pref
// system itself in this test, we want to make sure to use a pref outside of
// that system to disable update.
Services.prefs.setBoolPref(PREF_APP_UPDATE_DISABLEDFORTESTING, true);
const originalBackgroundUpdateEnabled =
await UpdateUtils.readUpdateConfigSetting(backgroundUpdateEnabledPref);
registerCleanupFunction(async () => {
Services.prefs.clearUserPref(transitionPerformedPref);
await UpdateUtils.writeUpdateConfigSetting(
backgroundUpdateEnabledPref,
originalBackgroundUpdateEnabled
);
await UpdateUtils.writeUpdateConfigSetting(
backgroundUpdateEnabledPref,
defaultPrefValue,
{ setDefaultOnly: true }
);
});
await testTransition({
initialDefaultValue: true,
initialUserValue: true,
expectedPostTransitionValue: true,
});
// Make sure we don't interfere with a user's choice to turn the feature off.
await testTransition({
initialDefaultValue: true,
initialUserValue: false,
expectedPostTransitionValue: false,
});
// In this case, there effectively is no user value since the user value
// equals the default value. So the effective value should change after
// the transition switches the default.
await testTransition({
initialDefaultValue: false,
initialUserValue: false,
expectedPostTransitionValue: true,
});
await testTransition({
initialDefaultValue: false,
initialUserValue: true,
expectedPostTransitionValue: true,
});
doTestFinish();
}
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