tor-browser

The Tor Browser
git clone https://git.dasho.dev/tor-browser.git
Log | Files | Refs | README | LICENSE

test_AboutHomeStartupCacheChild.js (1024B)

      1 /* Any copyright is dedicated to the Public Domain.
      2 http://creativecommons.org/publicdomain/zero/1.0/ */
      3 
      4 "use strict";
      5 
      6 const { AboutHomeStartupCacheChild } = ChromeUtils.importESModule(
      7  "resource:///modules/AboutNewTabRedirector.sys.mjs"
      8 );
      9 
     10 /**
     11 * Tests that AboutHomeStartupCacheChild will terminate its PromiseWorker
     12 * on memory-pressure, and that a new PromiseWorker can then be generated on
     13 * demand.
     14 */
     15 add_task(async function test_memory_pressure() {
     16  AboutHomeStartupCacheChild.init();
     17 
     18  let worker = AboutHomeStartupCacheChild.getOrCreateWorker();
     19  Assert.ok(worker, "Should have been able to get the worker.");
     20 
     21  Assert.equal(
     22    worker,
     23    AboutHomeStartupCacheChild.getOrCreateWorker(),
     24    "The worker is cached and re-usable."
     25  );
     26 
     27  Services.obs.notifyObservers(null, "memory-pressure", "heap-minimize");
     28 
     29  let newWorker = AboutHomeStartupCacheChild.getOrCreateWorker();
     30  Assert.notEqual(worker, newWorker, "Old worker should have been replaced.");
     31 
     32  AboutHomeStartupCacheChild.uninit();
     33 });