gecko-dev/devtools/client/shared/test/browser_prefs-01.js

45 строки
1.4 KiB
JavaScript

/* Any copyright is dedicated to the Public Domain.
http://creativecommons.org/publicdomain/zero/1.0/ */
"use strict";
// Tests that the preference helpers work properly.
const { PrefsHelper } = require("devtools/client/shared/prefs");
function test() {
let Prefs = new PrefsHelper("devtools.debugger", {
"foo": ["Bool", "enabled"]
});
let originalPrefValue = Services.prefs.getBoolPref("devtools.debugger.enabled");
is(Prefs.foo, originalPrefValue, "The pref value was correctly fetched.");
Prefs.foo = !originalPrefValue;
is(Prefs.foo, !originalPrefValue,
"The pref was was correctly changed (1).");
is(Services.prefs.getBoolPref("devtools.debugger.enabled"), !originalPrefValue,
"The pref was was correctly changed (2).");
Services.prefs.setBoolPref("devtools.debugger.enabled", originalPrefValue);
info("The pref value was reset (1).");
is(Prefs.foo, !originalPrefValue,
"The cached pref value hasn't changed yet (1).");
Services.prefs.setBoolPref("devtools.debugger.enabled", !originalPrefValue);
info("The pref value was reset (2).");
is(Prefs.foo, !originalPrefValue,
"The cached pref value hasn't changed yet (2).");
Prefs.registerObserver();
Services.prefs.setBoolPref("devtools.debugger.enabled", originalPrefValue);
info("The pref value was reset (3).");
is(Prefs.foo, originalPrefValue,
"The cached pref value has changed now.");
Prefs.unregisterObserver();
finish();
}