chrome/test/data/webui/settings/downloads_page_test.js

// Copyright 2017 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.

/** @implements {settings.DownloadsBrowserProxy} */
class TestDownloadsBrowserProxy extends TestBrowserProxy {
  constructor() {
    super([
      'initializeDownloads',
      'selectDownloadLocation',
      'resetAutoOpenFileTypes',
    ]);
  }

  /** @override */
  initializeDownloads() {
    this.methodCalled('initializeDownloads');
  }

  /** @override */
  selectDownloadLocation() {
    this.methodCalled('selectDownloadLocation');
  }

  /** @override */
  resetAutoOpenFileTypes() {
    this.methodCalled('resetAutoOpenFileTypes');
  }
}

let downloadsPage = null;

/** @type {?TestDownloadsBrowserProxy} */
let DownloadsBrowserProxy = null;

suite('DownloadsHandler', function() {
  setup(function() {
    DownloadsBrowserProxy = new TestDownloadsBrowserProxy();
    settings.DownloadsBrowserProxyImpl.instance_ = DownloadsBrowserProxy;

    PolymerTest.clearBody();

    downloadsPage = document.createElement('settings-downloads-page');
    document.body.appendChild(downloadsPage);

    // Page element must call 'initializeDownloads' upon attachment to the DOM.
    return DownloadsBrowserProxy.whenCalled('initializeDownloads');
  });

  teardown(function() {
    downloadsPage.remove();
  });

  test('select downloads location', function() {
    const button = downloadsPage.$$('#changeDownloadsPath');
    assertTrue(!!button);
    MockInteractions.tap(button);
    button.fire('transitionend');
    return DownloadsBrowserProxy.whenCalled('selectDownloadLocation');
  });

  test('openAdvancedDownloadsettings', function() {
    let button = downloadsPage.$$('#resetAutoOpenFileTypes');
    assertTrue(!button);

    cr.webUIListenerCallback('auto-open-downloads-changed', true);
    Polymer.dom.flush();
    button = downloadsPage.$$('#resetAutoOpenFileTypes');
    assertTrue(!!button);

    MockInteractions.tap(button);
    return DownloadsBrowserProxy.whenCalled('resetAutoOpenFileTypes')
        .then(function() {
          cr.webUIListenerCallback('auto-open-downloads-changed', false);
          Polymer.dom.flush();
          const button = downloadsPage.$$('#resetAutoOpenFileTypes');
          assertTrue(!button);
        });
  });
});