browser_storage_sidebar_update.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/. */

// Test to verify that the sidebar is not broken when several updates

// come in quick succession. See bug 1260380 - it could happen that the

// "Parsed Value" section gets duplicated.

"use strict";

add_task(async function () {

  const ITEM_NAME = "ls1";

  const UPDATE_COUNT = 3;

  await openTabAndSetupStorage(

    MAIN_DOMAIN_SECURED + "storage-complex-values.html"

);

  const updated = gUI.once("sidebar-updated");

  await selectTreeItem(["localStorage", "https://test1.example.org"]);

  await selectTableItem(ITEM_NAME);

  await updated;

  is(gUI.sidebar.hidden, false, "sidebar is visible");

  // do several updates in a row and wait for them to finish

  const updates = [];

  for (let i = 0; i < UPDATE_COUNT; i++) {

    info(`Performing update #${i}`);

    updates.push(gUI.once("sidebar-updated"));

    gUI.updateObjectSidebar();

  await Promise.all(updates);

  info("Updates performed, going to verify result");

  const parsedScope = gUI.view.getScopeAtIndex(1);

  const elements = parsedScope.target.querySelectorAll(

    `.name[value="${ITEM_NAME}"]`

);

is(

    elements.length,

1,

    `There is only one displayed variable named '${ITEM_NAME}'`

);

});