browser_console_clear_cache.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/. */

// Check that clearing the browser console output also clears the console cache.

"use strict";

const TEST_URI =

  "data:text/html;charset=utf8,<!DOCTYPE html>Test browser console clear cache";

add_task(async function () {

  await pushPref("devtools.browsertoolbox.scope", "everything");

  await addTab(TEST_URI);

  let hud = await BrowserConsoleManager.toggleBrowserConsole();

  const CACHED_MESSAGE = "CACHED_MESSAGE";

  await logTextInContentAndWaitForMessage(hud, CACHED_MESSAGE);

  info("Click the clear output button");

  const onBrowserConsoleOutputCleared = waitFor(

    () => !findConsoleAPIMessage(hud, CACHED_MESSAGE)

);

  hud.ui.window.document.querySelector(".devtools-clear-icon").click();

  await onBrowserConsoleOutputCleared;

  ok(true, "Message was cleared");

  info("Close and re-open the browser console");

  await safeCloseBrowserConsole();

  hud = await BrowserConsoleManager.toggleBrowserConsole();

  info("Log a smoke message in order to know that the console is ready");

  await logTextInContentAndWaitForMessage(hud, "Smoke message");

is(

    findConsoleAPIMessage(hud, CACHED_MESSAGE),

    undefined,

    "The cached message is not visible anymore"

);

});

function logTextInContentAndWaitForMessage(hud, text) {

  const onMessage = waitForMessageByType(hud, text, ".console-api");

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

    content.wrappedJSObject.console.log(str);

});

  return onMessage;