browser_webconsole_console_detection.js

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/* Any copyright is dedicated to the Public Domain.

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

// Tests that the console doesn't trigger any function in the page when logging the message

"use strict";

const TEST_URI = `data:text/html,<script>function logMessages() {

      /* Check if page functions can be called by console previewers */

      const date = new Date(2024, 0, 1);

      date.getTime = () => {

        return 42;

};

      Date.prototype.getTime = date.getTime;

      console.log("date", date);

      const regexp = /foo/m;

      regexp.toString = () => {

        return "24";

};

      console.log("regexp", regexp);

  }</script>`;

add_task(async function () {

  await addTab(TEST_URI);

  info("Open the console");

  const hud = await openConsole();

  // Only log messages *after* the console is opened as it may not trigger the same codepath for cached messages

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

    content.wrappedJSObject.logMessages();

});

  const dateMessage = await waitFor(() => findConsoleAPIMessage(hud, "date"));

  Assert.stringContains(dateMessage.textContent, "Jan 01 2024");

  const regExpMessage = await waitFor(() =>

    findConsoleAPIMessage(hud, "regexp")

);

  Assert.stringContains(regExpMessage.textContent, "/foo/m");

  await closeTabAndToolbox();

});