browser_webconsole_object_inspector_symbols.js

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/* Any copyright is dedicated to the Public Domain.

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

"use strict";

// Check expanding/collapsing object with symbol properties in the console.

const TEST_URI = "data:text/html;charset=utf8,<!DOCTYPE html>";

add_task(async function () {

  const hud = await openNewTabAndConsole(TEST_URI);

  await SpecialPowers.spawn(gBrowser.selectedBrowser, [], function () {

    content.wrappedJSObject.console.log("oi-symbols-test", {

      [Symbol()]: "first symbol",

      [Symbol()]: "second symbol",

      [Symbol()]: 0,

      [Symbol()]: null,

      [Symbol()]: false,

      [Symbol()]: undefined,

      [Symbol("named")]: "named symbol",

      [Symbol("array")]: [1, 2, 3],

});

});

  const node = await waitFor(() =>

    findConsoleAPIMessage(hud, "oi-symbols-test")

);

  const objectInspectors = [...node.querySelectorAll(".tree")];

is(

    objectInspectors.length,

1,

    "There is the expected number of object inspectors"

);

  const [oi] = objectInspectors;

  info("Expanding the Object");

  await expandObjectInspectorNode(oi.querySelector(".tree-node"));

  const oiNodes = oi.querySelectorAll(".node");

  // The object inspector should look like this:

/*

   * ▼ { … }

   * |   Symbol(): "first symbol",

   * |   Symbol(): "second symbol",

   * |   Symbol(): 0,

   * |   Symbol(): null,

   * |   Symbol(): false,

   * |   Symbol(): undefined,

   * |   Symbol(named): "named symbol",

   * |   Symbol(array): Array(3) [ 1, 2, 3 ],

   * | ▶︎ <prototype>

*/

  is(oiNodes.length, 10, "There is the expected number of nodes in the tree");

  is(oiNodes[1].textContent.trim(), `Symbol(): "first symbol"`);

  is(oiNodes[2].textContent.trim(), `Symbol(): "second symbol"`);

  is(oiNodes[3].textContent.trim(), `Symbol(): 0`);

  is(oiNodes[4].textContent.trim(), `Symbol(): null`);

  is(oiNodes[5].textContent.trim(), `Symbol(): false`);

  is(oiNodes[6].textContent.trim(), `Symbol(): undefined`);

  is(oiNodes[7].textContent.trim(), `Symbol(named): "named symbol"`);

  is(oiNodes[8].textContent.trim(), `Symbol(array): Array(3) [ 1, 2, 3 ]`);

});