browser_tab_remoteness_change.js

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/* Any copyright is dedicated to the Public Domain.

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

"use strict";

// Verify Fission-enabled RDM remains open when tab changes remoteness.

const { PromiseTestUtils } = ChromeUtils.importESModule(

  "resource://testing-common/PromiseTestUtils.sys.mjs"

);

PromiseTestUtils.allowMatchingRejectionsGlobally(

  /Permission denied to access property "document" on cross-origin object/

);

const Types = require("resource://devtools/client/responsive/types.js");

const TEST_URL = "http://example.com/";

addRDMTask(

  null,

  async function () {

    const tab = await addTab(TEST_URL);

    const { ui } = await openRDM(tab);

    const { store } = ui.toolWindow;

    await waitUntilState(

      store,

      state =>

        state.viewports.length == 1 &&

        state.devices.listState == Types.loadableState.LOADED

);

    // Load URL that requires the main process, forcing a remoteness flip

    await navigateTo("about:robots");

    // Bug 1625501: RDM will remain open when the embedded browser UI is enabled.

    is(ui.destroyed, false, "RDM is still open.");

    info("Close RDM");

    await closeRDM(tab);

    await removeTab(tab);

},

  { onlyPrefAndTask: true }

);