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path: root/devtools/client/shared/test/browser_dbg_listworkers.js
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/* Any copyright is dedicated to the Public Domain.
 * http://creativecommons.org/publicdomain/zero/1.0/ */

"use strict";

Services.prefs.setBoolPref("security.allow_eval_with_system_principal", true);

registerCleanupFunction(() => {
  Services.prefs.clearUserPref("security.allow_eval_with_system_principal");
});

var TAB_URL = EXAMPLE_URL + "doc_listworkers-tab.html";
var WORKER1_URL = "code_listworkers-worker1.js";
var WORKER2_URL = "code_listworkers-worker2.js";

add_task(async function test() {
  const tab = await addTab(TAB_URL);
  const target = await createAndAttachTargetForTab(tab);

  let { workers } = await listWorkers(target);
  is(workers.length, 0);

  let onWorkerListChanged = waitForWorkerListChanged(target);
  await SpecialPowers.spawn(tab.linkedBrowser, [WORKER1_URL], workerUrl => {
    content.worker1 = new content.Worker(workerUrl);
  });
  await onWorkerListChanged;

  ({ workers } = await listWorkers(target));
  is(workers.length, 1);
  is(workers[0].url, WORKER1_URL);

  onWorkerListChanged = waitForWorkerListChanged(target);
  await SpecialPowers.spawn(tab.linkedBrowser, [WORKER2_URL], workerUrl => {
    content.worker2 = new content.Worker(workerUrl);
  });
  await onWorkerListChanged;

  ({ workers } = await listWorkers(target));
  is(workers.length, 2);
  is(workers[0].url, WORKER1_URL);
  is(workers[1].url, WORKER2_URL);

  onWorkerListChanged = waitForWorkerListChanged(target);
  await SpecialPowers.spawn(tab.linkedBrowser, [WORKER2_URL], () => {
    content.worker1.terminate();
  });
  await onWorkerListChanged;

  ({ workers } = await listWorkers(target));
  is(workers.length, 1);
  is(workers[0].url, WORKER2_URL);

  onWorkerListChanged = waitForWorkerListChanged(target);
  await SpecialPowers.spawn(tab.linkedBrowser, [WORKER2_URL], () => {
    content.worker2.terminate();
  });
  await onWorkerListChanged;

  ({ workers } = await listWorkers(target));
  is(workers.length, 0);

  await target.destroy();
  finish();
});

function listWorkers(targetFront) {
  info("Listing workers.");
  return targetFront.listWorkers();
}

function waitForWorkerListChanged(targetFront) {
  info("Waiting for worker list to change.");
  return targetFront.once("workerListChanged");
}