@brightcove/videojs-flashls-source-handler/test/flashlsAudioTracks.test.js

import QUnit from 'qunit';
import { updateAudioTrack, setupAudioTracks } from '../src/flashlsAudioTracks.js';
import { makeMochTech } from './util/util.js';

QUnit.module('Flashls Audiotracks', {
  beforeEach() {
    this.swfAudioTracks = [];
    this.swfAltAudioTracks = [];
    this.swfAudioTrack = -1;
    this.vjsAudioTracks = [];

    this.tech = makeMochTech({
      altAudioTracks: () => this.swfAltAudioTracks,
      audioTracks: () => this.swfAudioTracks,
      audioTrack: () => this.swfAudioTrack
    }, {
      audioTrack: (val) => this.swfAudioTrack = val
    });

    // mock videojs audio tracks getter
    this.vjsAudioTracks.addTrack = (track) => this.vjsAudioTracks.push(track);
    this.tech.audioTracks = () => this.vjsAudioTracks;
  }
});

QUnit.test('setupAudioTracks does nothing when no audio tracks from swf',
function(assert) {
  setupAudioTracks(this.tech);

  assert.equal(this.vjsAudioTracks.length, 0, 'no videojs audio tracks created');
});

QUnit.test('setupAudioTracks creates videojs audio tracks for each swf audio track',
function(assert) {
  // org.mangui.hls.model.AudioTrack
  this.swfAudioTracks = [
    {
      id: 1,
      isDefault: true,
      isAAC: true,
      title: 'English',
      source: 1
    },
    {
      id: 3,
      isDefault: false,
      isAAC: true,
      title: 'Spanish',
      source: 1
    },
    {
      id: 5,
      isDefault: false,
      isAAC: true,
      title: 'French',
      source: 1
    }
  ];

  // org.mangui.hls.playlist.AltAudioTrack
  /* eslint-disable camelcase */
  this.swfAltAudioTracks = [
    {
      group_id: 'low',
      lang: 'en',
      name: 'English',
      default_track: true,
      autoselect: true,
      url: '0.m3u8'
    },
    {
      group_id: 'high',
      lang: 'en',
      name: 'English',
      default_track: true,
      autoselect: true,
      url: '1.m3u8'
    },
    {
      group_id: 'low',
      lang: 'es',
      name: 'Spanish',
      default_track: false,
      autoselect: true,
      url: '2.m3u8'
    },
    {
      group_id: 'high',
      lang: 'es',
      name: 'Spanish',
      default_track: false,
      autoselect: true,
      url: '3.m3u8'
    },
    {
      group_id: 'low',
      lang: 'fr',
      name: 'French',
      default_track: false,
      autoselect: true,
      url: '4.m3u8'
    },
    {
      group_id: 'high',
      lang: 'fr',
      name: 'French',
      default_track: false,
      autoselect: true,
      url: '5.m3u8'
    }
  ];
  /* eslint-enable camelcase */

  // set initial selection of swf audio track made by flashls
  this.swfAudioTrack = 0;

  assert.equal(this.vjsAudioTracks.length, 0, 'Initial size of vjsAudioTracks');

  setupAudioTracks(this.tech);

  assert.equal(this.vjsAudioTracks.length, 3, 'Length after setupAudioTracks()');
  assert.equal(this.vjsAudioTracks[0].id, 'English', 'corrrect id');
  assert.equal(this.vjsAudioTracks[0].enabled, true, 'correct audio track enabled');
  assert.equal(this.vjsAudioTracks[1].id, 'Spanish', 'corrrect id');
  assert.equal(this.vjsAudioTracks[1].enabled, false, 'Other Audio track are disabled');
  assert.equal(this.vjsAudioTracks[2].id, 'French', 'corrrect id');
  assert.equal(this.vjsAudioTracks[2].enabled, false, 'Other Audio track are disabled');
});

QUnit.test('updateAudioTrack sets audioTrack on swf when videojs audioTrack changes',
function(assert) {
  // org.mangui.hls.model.AudioTrack
  this.swfAudioTracks = [
    {
      id: 1,
      isDefault: true,
      isAAC: true,
      title: 'English',
      source: 1
    },
    {
      id: 3,
      isDefault: false,
      isAAC: true,
      title: 'Spanish',
      source: 1
    },
    {
      id: 5,
      isDefault: false,
      isAAC: true,
      title: 'French',
      source: 1
    }
  ];

  this.vjsAudioTracks.push({
    id: 'English',
    label: 'English',
    enabled: false,
    language: 'en',
    default: true
  }, {
    id: 'Spanish',
    label: 'Spanish',
    enabled: false,
    language: 'es',
    default: false
  }, {
    id: 'French',
    label: 'French',
    enabled: false,
    language: 'fr',
    default: false
  });

  this.swfAudioTrack = -1;
  updateAudioTrack(this.tech);
  assert.equal(this.swfAudioTrack, -1,
  'When all tracks are disabled, it does not set any track');

  this.vjsAudioTracks[1].enabled = true;
  this.vjsAudioTracks[2].enabled = true;

  this.swfAudioTrack = -1;
  updateAudioTrack(this.tech);
  assert.equal(this.swfAudioTrack, 1,
  'When more than 1 track enabled, set the swf audio track to the first enabled track');

  this.vjsAudioTracks[1].enabled = false;
  this.swfAudioTrack = -1;
  updateAudioTrack(this.tech);
  assert.equal(this.swfAudioTrack, 2,
    'Correct enabled audio track id after switching tracks');
});