browser_tab_color_update.js

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/* Any copyright is dedicated to the Public Domain.

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

"use strict";

async function openTabInUserContext(uri, userContextId) {

  // open the tab in the correct userContextId

  let tab = BrowserTestUtils.addTab(gBrowser, uri, { userContextId });

  let browser = gBrowser.getBrowserForTab(tab);

  await BrowserTestUtils.browserLoaded(browser, false, uri);

  return tab;

/**

 * When a container's colour changes, the tab colour should update.

*/

add_task(async function test_tab_color_updates() {

  const kId = 2;

  let tab = await openTabInUserContext("https://example.com/", kId);

  let contextIdInfo = ContextualIdentityService.getPublicIdentityFromId(kId);

ok(

    tab.classList.contains("identity-color-" + contextIdInfo.color),

    `Should use color ${contextIdInfo.color} for tab`

);

  // The container has a localized name which isn't in the contextIdInfo object.

  // We need to pass a valid name for the update to go through, so make one up.

  let name = "Foo";

  // Don't hardcode a colour so changes in defaults won't cause the following

  // test to fail or be a no-op.

  let otherColor = contextIdInfo.color == "green" ? "orange" : "green";

  registerCleanupFunction(() => ContextualIdentityService.resetDefault());

  ContextualIdentityService.update(kId, name, contextIdInfo.icon, otherColor);

ok(

    tab.classList.contains("identity-color-" + otherColor),

    `Should use color ${otherColor} for tab after update`

);

  BrowserTestUtils.removeTab(tab);

});