browser_dbg-remember-expanded-scopes.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/>. */

"use strict";

// Ignore strange errors when shutting down.

PromiseTestUtils.allowMatchingRejectionsGlobally(/No such actor/);

PromiseTestUtils.allowMatchingRejectionsGlobally(/connection just closed/);

const MAXIMUM_ITEMS = 10;

// Test that expanded scopes stay expanded after resuming and pausing again.

add_task(async function () {

  const dbg = await initDebugger("doc-remember-expanded-scopes.html");

  invokeInTab("main", "doc-remember-expanded-scopes.html");

  await waitForPaused(dbg);

  await toggleNode(dbg, "object");

  await toggleNode(dbg, "innerObject");

  await stepOver(dbg);

  await waitForPaused(dbg);

  await waitUntil(() => findNode(dbg, "innerData"));

  ok(true, "Inner object data automatically expanded after stepping");

});

function findNode(dbg, text) {

  for (let index = 0; index < MAXIMUM_ITEMS; index++) {

    const elem = findElement(dbg, "scopeNode", index);

    if (elem?.innerText == text) {

      return elem;

  return null;

async function toggleNode(dbg, text) {

  const node = await waitFor(() => findNode(dbg, text));

  return toggleObjectInspectorNode(node);