browser_locale_change.js

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/* Any copyright is dedicated to the Public Domain.

   http://creativecommons.org/publicdomain/zero/1.0/ */

"use strict";

/**

 * Tests that the about:home startup cache is cleared if the app

 * locale changes.

*/

add_task(async function test_locale_change() {

  await withFullyLoadedAboutHome(async browser => {

    await simulateRestart(browser);

    await ensureCachedAboutHome(browser);

    Services.obs.notifyObservers(null, "intl:app-locales-changed");

    await AboutHomeStartupCache.ensureCacheEntry();

    // We're testing that switching locales blows away the cache, so we

    // bypass the automatic writing of the cache on shutdown, and we

    // also don't need to wait for the cache to be available.

    await simulateRestart(browser, {

      withAutoShutdownWrite: false,

      ensureCacheWinsRace: false,

});

    await ensureDynamicAboutHome(

      browser,

      AboutHomeStartupCache.CACHE_RESULT_SCALARS.DOES_NOT_EXIST

);

});

});