test/e2e/helpers/media-helpers.ts

// Copyright 2020 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 {click, getBrowserAndPages, goToResource, waitFor, waitForFunction, waitForMany} from '../../shared/helper.js';

export async function playMediaFile(media: string) {
  const {target} = getBrowserAndPages();
  await goToResource(`media/${media}`);

  // Need to click play manually - autoplay policy prevents it otherwise.
  await target.evaluate(() => new Promise<void>(resolve => {
                          const videoElement = document.getElementsByName('media')[0] as HTMLVideoElement;
                          videoElement.addEventListener('play', () => {
                            resolve();
                          }, {once: true});
                          // Just in case autoplay started before we could attach an event listener.
                          if (!videoElement.paused || videoElement.readyState > 2) {
                            resolve();
                          } else {
                            void videoElement.play();
                          }
                        }));
}

export async function getPlayerButton() {
  return await waitFor('.player-entry-player-title');
}

export async function getPlayerErrors(count: number) {
  await click('.player-entry-player-title');
  await click('#tab-messages');
  return await waitForMany('.media-message-error', count);
}

export async function getPlayerButtonText() {
  const playerEntry = await getPlayerButton();
  return await playerEntry.evaluate(element => element.textContent as string);
}

export async function waitForPlayerButtonTexts(count: number) {
  return waitForFunction(async () => {
    return await waitForMany('.player-entry-player-title', count);
  });
}