chrome-devtools-frontend/front_end/panels/lighthouse/LighthouseController.test.ts

Chrome DevTools UI

// Copyright 2022 The Chromium Authors. All rights reserved.
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.

import * as SDK from '../../core/sdk/sdk.js';
import {createTarget, stubNoopSettings} from '../../testing/EnvironmentHelpers.js';
import {describeWithMockConnection} from '../../testing/MockConnection.js';
import {TraceLoader} from '../../testing/TraceLoader.js';

import type * as LighthouseModule from './lighthouse.js';

describeWithMockConnection('LighthouseController', () => {
  // eslint-disable-next-line @typescript-eslint/naming-convention
  let Lighthouse: typeof LighthouseModule;
  let target: SDK.Target.Target;

  beforeEach(async function() {
    TraceLoader.setTestTimeout(this);
    stubNoopSettings();
    Lighthouse = await import('./lighthouse.js');
    const tabTarget = createTarget({type: SDK.Target.Type.TAB});
    createTarget({parentTarget: tabTarget, subtype: 'prerender'});
    target = createTarget({parentTarget: tabTarget});
  });

  it('updates page auditability on service worker registraion', async () => {
    const controller = new Lighthouse.LighthouseController.LighthouseController(
        sinon.createStubInstance(Lighthouse.LighthouseProtocolService.ProtocolService));
    const serviceWorkerManager = target.model(SDK.ServiceWorkerManager.ServiceWorkerManager);
    assert.exists(serviceWorkerManager);
    const pageAuditabilityChange = controller.once(Lighthouse.LighthouseController.Events.PageAuditabilityChanged);
    serviceWorkerManager.dispatchEventToListeners(
        SDK.ServiceWorkerManager.Events.REGISTRATION_UPDATED, {} as SDK.ServiceWorkerManager.ServiceWorkerRegistration);
    await pageAuditabilityChange;
  });
});