browser_inspector_open_on_neterror.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 correctly when opened against a net error page

const TEST_URL_1 = "http://127.0.0.1:36325/";

const TEST_URL_2 = "data:text/html,<html><body>test-doc-2</body></html>";

add_task(async function () {

  // We cannot directly use addTab here as waiting for error pages requires

  // a specific code path.

  gBrowser.selectedTab = BrowserTestUtils.addTab(gBrowser, TEST_URL_1);

  await BrowserTestUtils.waitForErrorPage(gBrowser.selectedBrowser);

  const { inspector } = await openInspector();

  ok(true, "Inspector loaded on the already opened net error");

  const documentURI = await SpecialPowers.spawn(

    gBrowser.selectedBrowser,

[],

    () => content.document.documentURI

);

ok(

    documentURI.startsWith("about:neterror"),

    "content is really a net error page."

);

  const netErrorNode = await getNodeFront(".container", inspector);

  ok(netErrorNode, "The inspector can get a node front from the neterror page");

  info("Navigate to a valid url");

  await navigateTo(TEST_URL_2);

is(

    await getDisplayedNodeTextContent("body", inspector),

    "test-doc-2",

    "Inspector really inspects the valid url"

);

});