browser_dbg-console-async.js

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/* 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, You can obtain one at <http://mozilla.org/MPL/2.0/>. */

// Return a promise with a reference to jsterm, opening the split

// console if necessary.  This cleans up the split console pref so

// it won't pollute other tests.

"use strict";

add_task(async function () {

  Services.prefs.setBoolPref("devtools.toolbox.splitconsole.open", true);

  Services.prefs.setBoolPref(

    "devtools.debugger.features.map-await-expression",

    true

);

  const dbg = await initDebugger(

    "doc-script-switching.html",

    "script-switching-01.js"

);

  await selectSource(dbg, "script-switching-01.js");

  // open the console

  await getDebuggerSplitConsole(dbg);

  ok(dbg.toolbox.splitConsole, "Split console is shown.");

  const webConsole = await dbg.toolbox.getPanel("webconsole");

  const wrapper = webConsole.hud.ui.wrapper;

  wrapper.dispatchEvaluateExpression(`

    let sleep = async (time, v) => new Promise(

      res => setTimeout(() => res(v+'!!!'), time)

`);

  await hasMessageByType(dbg, "sleep", ".command");

  wrapper.dispatchEvaluateExpression(`await sleep(200, "DONE")`);

  await hasMessageByType(dbg, "DONE!!!", ".result");

});

async function hasMessageByType(dbg, msg, typeSelector) {

  const webConsole = await dbg.toolbox.getPanel("webconsole");

  const hud = webConsole.hud;

  return waitFor(

    async () => !!findMessagesByType(hud, msg, typeSelector).length

);