browser_inspector_navigate_to_errors.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/. */

"use strict";

// Test that inspector works when navigating to error pages.

const TEST_URL_1 =

  'data:text/html,<html><body id="test-doc-1">page</body></html>';

const TEST_URL_2 = "http://127.0.0.1:36325/";

const TEST_URL_3 = "https://www.wronguri.wronguri/";

const TEST_URL_4 = "data:text/html,<html><body>test-doc-4</body></html>";

add_task(async function () {

  // Open the inspector on a valid URL

  const { inspector } = await openInspectorForURL(TEST_URL_1);

  info("Navigate to closed port");

  await navigateTo(TEST_URL_2, { isErrorPage: true });

  const documentURI = await SpecialPowers.spawn(

    gBrowser.selectedBrowser,

[],

    () => {

      return content.document.documentURI;

);

  ok(documentURI.startsWith("about:neterror"), "content is correct.");

  const hasPage = await getNodeFront("#test-doc-1", inspector);

ok(

    !hasPage,

    "Inspector actor is no longer able to reach previous page DOM node"

);

  const hasNetErrorNode = await getNodeFront("#errorShortDesc", inspector);

  ok(hasNetErrorNode, "Inspector actor is able to reach error page DOM node");

  const bundle = Services.strings.createBundle(

    "chrome://global/locale/appstrings.properties"

);

  let domain = TEST_URL_2.match(/^http:\/\/(.*)\/$/)[1];

  let errorMsg = bundle.formatStringFromName("connectionFailure", [domain]);

is(

    await getDisplayedNodeTextContent("#errorShortDesc", inspector),

    errorMsg,

    "Inpector really inspects the error page"

);

  info("Navigate to unknown domain");

  await navigateTo(TEST_URL_3, { isErrorPage: true });

  domain = TEST_URL_3.match(/^https:\/\/(.*)\/$/)[1];

  errorMsg = bundle.formatStringFromName("dnsNotFound2", [domain]);

is(

    await getDisplayedNodeTextContent("#errorShortDesc", inspector),

    errorMsg,

    "Inspector really inspects the new error page"

);

  info("Navigate to a valid url");

  await navigateTo(TEST_URL_4);

is(

    await getDisplayedNodeTextContent("body", inspector),

    "test-doc-4",

    "Inspector really inspects the valid url"

);

});