browser_dom_array.js

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/* Any copyright is dedicated to the Public Domain.

 * http://creativecommons.org/publicdomain/zero/1.0/ */

"use strict";

const TEST_PAGE_URL = URL_ROOT + "page_array.html";

const TEST_ARRAY = [

  "a",

  "b",

  "c",

  "d",

  "e",

  "f",

  "g",

  "h",

  "i",

  "j",

  "k",

  "l",

  "m",

  "n",

  "o",

  "p",

  "q",

  "r",

  "s",

  "t",

  "u",

  "v",

  "w",

  "x",

  "y",

  "z",

];

/**

 * Basic test that checks content of the DOM panel.

*/

add_task(async function () {

  info("Test DOM Panel Array Expansion started");

  const { panel } = await addTestTab(TEST_PAGE_URL);

  // Expand specified row and wait till children are displayed.

  await expandRow(panel, "_a");

  // Verify that children is displayed now.

  const childRows = getAllRowsForLabel(panel, "_a");

  const item = childRows.pop();

  is(item.name, "length", "length property is correct");

  is(item.value, 26, "length property value is 26");

  let i = 0;

  for (const name in childRows) {

    const row = childRows[name];

is(

      parseInt(name, 10),

      i++,

      `index ${name} is correct and sorted into the correct position`

);

    Assert.strictEqual(

      typeof row.name,

      "number",

      "array index is displayed as a number"

);

    is(TEST_ARRAY[name], row.value, `value for array[${name}] is ${row.value}`);

});