Source code
Revision control
Copy as Markdown
Other Tools
Test Info:
/* 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,
const { RecommendedPreferences } = ChromeUtils.importESModule(
"chrome://remote/content/shared/RecommendedPreferences.sys.mjs"
);
const COMMON_PREF = "toolkit.startup.max_resumed_crashes";
const PROTOCOL_1_PREF = "dom.disable_beforeunload";
const PROTOCOL_1_RECOMMENDED_PREFS = new Map([[PROTOCOL_1_PREF, true]]);
const PROTOCOL_2_PREF = "browser.contentblocking.features.standard";
const PROTOCOL_2_RECOMMENDED_PREFS = new Map([
[PROTOCOL_2_PREF, "-tp,tpPrivate,cookieBehavior0,-cm,-fp"],
]);
function cleanup() {
info("Restore recommended preferences and test preferences");
Services.prefs.clearUserPref("remote.prefs.recommended");
RecommendedPreferences.restoreAllPreferences();
}
// cleanup() should be called:
// - explicitly after each test to avoid side effects
// - via registerCleanupFunction in case a test crashes/times out
registerCleanupFunction(cleanup);
add_task(async function test_multipleClients() {
info("Check initial values for the test preferences");
checkPreferences({ common: false, protocol_1: false, protocol_2: false });
checkPreferences({ common: false, protocol_1: false, protocol_2: false });
info("Apply recommended preferences for a protocol_1 client");
RecommendedPreferences.applyPreferences(PROTOCOL_1_RECOMMENDED_PREFS);
checkPreferences({ common: true, protocol_1: true, protocol_2: false });
info("Apply recommended preferences for a protocol_2 client");
RecommendedPreferences.applyPreferences(PROTOCOL_2_RECOMMENDED_PREFS);
checkPreferences({ common: true, protocol_1: true, protocol_2: true });
info("Restore protocol_1 preferences");
RecommendedPreferences.restorePreferences(PROTOCOL_1_RECOMMENDED_PREFS);
checkPreferences({ common: true, protocol_1: false, protocol_2: true });
info("Restore protocol_2 preferences");
RecommendedPreferences.restorePreferences(PROTOCOL_2_RECOMMENDED_PREFS);
checkPreferences({ common: true, protocol_1: false, protocol_2: false });
info("Restore all the altered preferences");
RecommendedPreferences.restoreAllPreferences();
checkPreferences({ common: false, protocol_1: false, protocol_2: false });
info("Attemps to restore again");
RecommendedPreferences.restoreAllPreferences();
checkPreferences({ common: false, protocol_1: false, protocol_2: false });
cleanup();
});
add_task(async function test_disabled() {
info("Disable RecommendedPreferences");
Services.prefs.setBoolPref("remote.prefs.recommended", false);
info("Check initial values for the test preferences");
checkPreferences({ common: false, protocol_1: false, protocol_2: false });
info("Recommended preferences are not applied, applyPreferences is a no-op");
RecommendedPreferences.applyPreferences(PROTOCOL_1_RECOMMENDED_PREFS);
checkPreferences({ common: false, protocol_1: false, protocol_2: false });
cleanup();
});
add_task(async function test_noCustomPreferences() {
info("Applying preferences without any custom preference should not throw");
// First call invokes setting of default preferences
RecommendedPreferences.applyPreferences();
// Second call does nothing
RecommendedPreferences.applyPreferences();
cleanup();
});
// Check that protocols can override common preferences.
add_task(async function test_override() {
info("Make sure the common preference has no user value");
Services.prefs.clearUserPref(COMMON_PREF);
const OVERRIDE_VALUE = 42;
const OVERRIDE_COMMON_PREF = new Map([[COMMON_PREF, OVERRIDE_VALUE]]);
info("Apply a map of preferences overriding a common preference");
RecommendedPreferences.applyPreferences(OVERRIDE_COMMON_PREF);
equal(
Services.prefs.getIntPref(COMMON_PREF),
OVERRIDE_VALUE,
"The common preference was set to the expected value"
);
cleanup();
});
function checkPreferences({ common, protocol_1, protocol_2 }) {
checkPreference(COMMON_PREF, { hasValue: common });
checkPreference(PROTOCOL_1_PREF, { hasValue: protocol_1 });
checkPreference(PROTOCOL_2_PREF, { hasValue: protocol_2 });
}
function checkPreference(pref, { hasValue }) {
equal(
Services.prefs.prefHasUserValue(pref),
hasValue,
hasValue
? `The preference ${pref} has a user value`
: `The preference ${pref} has no user value`
);
}