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972 lines
36 KiB
972 lines
36 KiB
import QUnit from 'qunit';
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import PlaylistLoader from '../src/playlist-loader';
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import xhrFactory from '../src/xhr';
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import { useFakeEnvironment } from './test-helpers';
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import window from 'global/window';
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// Attempts to produce an absolute URL to a given relative path
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// based on window.location.href
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const urlTo = function(path) {
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return window.location.href
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.split('/')
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.slice(0, -1)
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.concat([path])
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.join('/');
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};
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QUnit.module('Playlist Loader', {
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beforeEach(assert) {
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this.env = useFakeEnvironment(assert);
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this.clock = this.env.clock;
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this.requests = this.env.requests;
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this.fakeHls = {
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xhr: xhrFactory()
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};
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},
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afterEach() {
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this.env.restore();
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}
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});
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QUnit.test('throws if the playlist url is empty or undefined', function(assert) {
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assert.throws(function() {
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PlaylistLoader();
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}, 'requires an argument');
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assert.throws(function() {
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PlaylistLoader('');
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}, 'does not accept the empty string');
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});
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QUnit.test('starts without any metadata', function(assert) {
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let loader = new PlaylistLoader('master.m3u8', this.fakeHls);
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loader.load();
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assert.strictEqual(loader.state, 'HAVE_NOTHING', 'no metadata has loaded yet');
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});
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QUnit.test('requests the initial playlist immediately', function(assert) {
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let loader = new PlaylistLoader('master.m3u8', this.fakeHls);
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loader.load();
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assert.strictEqual(this.requests.length, 1, 'made a request');
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assert.strictEqual(this.requests[0].url,
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'master.m3u8',
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'requested the initial playlist');
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});
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QUnit.test('moves to HAVE_MASTER after loading a master playlist', function(assert) {
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let loader = new PlaylistLoader('master.m3u8', this.fakeHls);
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let state;
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loader.load();
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loader.on('loadedplaylist', function() {
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state = loader.state;
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});
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this.requests.pop().respond(200, null,
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'#EXTM3U\n' +
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'#EXT-X-STREAM-INF:\n' +
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'media.m3u8\n');
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assert.ok(loader.master, 'the master playlist is available');
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assert.strictEqual(state, 'HAVE_MASTER', 'the state at loadedplaylist correct');
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});
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QUnit.test('jumps to HAVE_METADATA when initialized with a media playlist', function(assert) {
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let loadedmetadatas = 0;
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let loader = new PlaylistLoader('media.m3u8', this.fakeHls);
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loader.load();
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loader.on('loadedmetadata', function() {
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loadedmetadatas++;
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});
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this.requests.pop().respond(200, null,
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'#EXTM3U\n' +
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'#EXTINF:10,\n' +
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'0.ts\n' +
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'#EXT-X-ENDLIST\n');
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assert.ok(loader.master, 'infers a master playlist');
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assert.ok(loader.media(), 'sets the media playlist');
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assert.ok(loader.media().uri, 'sets the media playlist URI');
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assert.strictEqual(loader.state, 'HAVE_METADATA', 'the state is correct');
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assert.strictEqual(this.requests.length, 0, 'no more requests are made');
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assert.strictEqual(loadedmetadatas, 1, 'fired one loadedmetadata');
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});
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QUnit.test('resolves relative media playlist URIs', function(assert) {
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let loader = new PlaylistLoader('master.m3u8', this.fakeHls);
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loader.load();
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this.requests.shift().respond(200, null,
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'#EXTM3U\n' +
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'#EXT-X-STREAM-INF:\n' +
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'video/media.m3u8\n');
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assert.equal(loader.master.playlists[0].resolvedUri, urlTo('video/media.m3u8'),
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'resolved media URI');
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});
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QUnit.test('playlist loader returns the correct amount of enabled playlists', function(assert) {
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let loader = new PlaylistLoader('master.m3u8', this.fakeHls);
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loader.load();
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this.requests.shift().respond(200, null,
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'#EXTM3U\n' +
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'#EXT-X-STREAM-INF:\n' +
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'video1/media.m3u8\n' +
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'#EXT-X-STREAM-INF:\n' +
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'video2/media.m3u8\n');
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assert.equal(loader.enabledPlaylists_(), 2, 'Returned initial amount of playlists');
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loader.master.playlists[0].excludeUntil = Date.now() + 100000;
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this.clock.tick(1000);
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assert.equal(loader.enabledPlaylists_(), 1, 'Returned one less playlist');
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});
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QUnit.test('playlist loader detects if we are on lowest rendition', function(assert) {
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let loader = new PlaylistLoader('master.m3u8', this.fakeHls);
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loader.load();
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this.requests.shift().respond(200, null,
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'#EXTM3U\n' +
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'#EXT-X-STREAM-INF:\n' +
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'video1/media.m3u8\n' +
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'#EXT-X-STREAM-INF:\n' +
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'video2/media.m3u8\n');
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loader.media = function() {
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return {attributes: {BANDWIDTH: 10}};
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};
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loader.master.playlists = [{attributes: {BANDWIDTH: 10}},
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{attributes: {BANDWIDTH: 20}}];
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assert.ok(loader.isLowestEnabledRendition_(), 'Detected on lowest rendition');
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loader.media = function() {
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return {attributes: {BANDWIDTH: 20}};
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};
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assert.ok(!loader.isLowestEnabledRendition_(), 'Detected not on lowest rendition');
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});
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QUnit.test('resolves media initialization segment URIs', function(assert) {
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let loader = new PlaylistLoader('video/fmp4.m3u8', this.fakeHls);
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loader.load();
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this.requests.shift().respond(200, null,
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'#EXTM3U\n' +
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'#EXT-X-MAP:URI="main.mp4",BYTERANGE="720@0"\n' +
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'#EXTINF:10,\n' +
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'0.ts\n' +
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'#EXT-X-ENDLIST\n');
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assert.equal(loader.media().segments[0].map.resolvedUri, urlTo('video/main.mp4'),
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'resolved init segment URI');
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});
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QUnit.test('recognizes absolute URIs and requests them unmodified', function(assert) {
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let loader = new PlaylistLoader('manifest/media.m3u8', this.fakeHls);
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loader.load();
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this.requests.shift().respond(200, null,
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'#EXTM3U\n' +
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'#EXT-X-STREAM-INF:\n' +
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'http://example.com/video/media.m3u8\n');
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assert.equal(loader.master.playlists[0].resolvedUri,
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'http://example.com/video/media.m3u8', 'resolved media URI');
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this.requests.shift().respond(200, null,
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'#EXTM3U\n' +
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'#EXTINF:10,\n' +
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'http://example.com/00001.ts\n' +
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'#EXT-X-ENDLIST\n');
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assert.equal(loader.media().segments[0].resolvedUri,
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'http://example.com/00001.ts', 'resolved segment URI');
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});
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QUnit.test('recognizes domain-relative URLs', function(assert) {
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let loader = new PlaylistLoader('manifest/media.m3u8', this.fakeHls);
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loader.load();
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this.requests.shift().respond(200, null,
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'#EXTM3U\n' +
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'#EXT-X-STREAM-INF:\n' +
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'/media.m3u8\n');
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assert.equal(loader.master.playlists[0].resolvedUri,
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window.location.protocol + '//' +
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window.location.host + '/media.m3u8',
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'resolved media URI');
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this.requests.shift().respond(200, null,
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'#EXTM3U\n' +
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'#EXTINF:10,\n' +
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'/00001.ts\n' +
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'#EXT-X-ENDLIST\n');
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assert.equal(loader.media().segments[0].resolvedUri,
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window.location.protocol + '//' +
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window.location.host + '/00001.ts',
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'resolved segment URI');
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});
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QUnit.test('recognizes key URLs relative to master and playlist', function(assert) {
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let loader = new PlaylistLoader('/video/media-encrypted.m3u8', this.fakeHls);
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loader.load();
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this.requests.shift().respond(200, null,
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'#EXTM3U\n' +
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'#EXT-X-STREAM-INF:PROGRAM-ID=1,BANDWIDTH=17\n' +
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'playlist/playlist.m3u8\n' +
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'#EXT-X-ENDLIST\n');
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assert.equal(loader.master.playlists[0].resolvedUri,
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window.location.protocol + '//' +
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window.location.host + '/video/playlist/playlist.m3u8',
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'resolved media URI');
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this.requests.shift().respond(200, null,
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'#EXTM3U\n' +
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'#EXT-X-TARGETDURATION:15\n' +
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'#EXT-X-KEY:METHOD=AES-128,URI="keys/key.php"\n' +
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'#EXTINF:2.833,\n' +
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'http://example.com/000001.ts\n' +
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'#EXT-X-ENDLIST\n');
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assert.equal(loader.media().segments[0].key.resolvedUri,
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window.location.protocol + '//' +
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window.location.host + '/video/playlist/keys/key.php',
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'resolved multiple relative paths for key URI');
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});
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QUnit.test('trigger an error event when a media playlist 404s', function(assert) {
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let count = 0;
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let loader = new PlaylistLoader('manifest/master.m3u8', this.fakeHls);
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loader.load();
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loader.on('error', function() {
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count += 1;
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});
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// master
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this.requests.shift().respond(200, null,
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'#EXTM3U\n' +
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'#EXT-X-STREAM-INF:PROGRAM-ID=1,BANDWIDTH=17\n' +
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'playlist/playlist.m3u8\n' +
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'#EXT-X-STREAM-INF:PROGRAM-ID=2,BANDWIDTH=170\n' +
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'playlist/playlist2.m3u8\n' +
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'#EXT-X-ENDLIST\n');
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assert.equal(count, 0,
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'error not triggered before requesting playlist');
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// playlist
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this.requests.shift().respond(404);
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assert.equal(count, 1,
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'error triggered after playlist 404');
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});
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QUnit.test('recognizes absolute key URLs', function(assert) {
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let loader = new PlaylistLoader('/video/media-encrypted.m3u8', this.fakeHls);
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loader.load();
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this.requests.shift().respond(200, null,
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'#EXTM3U\n' +
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'#EXT-X-STREAM-INF:PROGRAM-ID=1,BANDWIDTH=17\n' +
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'playlist/playlist.m3u8\n' +
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'#EXT-X-ENDLIST\n');
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assert.equal(loader.master.playlists[0].resolvedUri,
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window.location.protocol + '//' +
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window.location.host + '/video/playlist/playlist.m3u8',
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'resolved media URI');
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this.requests.shift().respond(
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200,
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null,
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'#EXTM3U\n' +
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'#EXT-X-TARGETDURATION:15\n' +
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'#EXT-X-KEY:METHOD=AES-128,URI="http://example.com/keys/key.php"\n' +
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'#EXTINF:2.833,\n' +
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'http://example.com/000001.ts\n' +
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'#EXT-X-ENDLIST\n'
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);
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assert.equal(loader.media().segments[0].key.resolvedUri,
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'http://example.com/keys/key.php', 'resolved absolute path for key URI');
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});
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QUnit.test('jumps to HAVE_METADATA when initialized with a live media playlist',
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function(assert) {
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let loader = new PlaylistLoader('media.m3u8', this.fakeHls);
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loader.load();
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this.requests.pop().respond(200, null,
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'#EXTM3U\n' +
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'#EXTINF:10,\n' +
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'0.ts\n');
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assert.ok(loader.master, 'infers a master playlist');
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assert.ok(loader.media(), 'sets the media playlist');
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assert.strictEqual(loader.state, 'HAVE_METADATA', 'the state is correct');
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});
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QUnit.test('moves to HAVE_METADATA after loading a media playlist', function(assert) {
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let loadedPlaylist = 0;
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let loadedMetadata = 0;
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let loader = new PlaylistLoader('master.m3u8', this.fakeHls);
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loader.load();
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loader.on('loadedplaylist', function() {
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loadedPlaylist++;
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});
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loader.on('loadedmetadata', function() {
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loadedMetadata++;
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});
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this.requests.pop().respond(200, null,
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'#EXTM3U\n' +
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'#EXT-X-STREAM-INF:\n' +
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'media.m3u8\n' +
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'alt.m3u8\n');
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assert.strictEqual(loadedPlaylist, 1, 'fired loadedplaylist once');
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assert.strictEqual(loadedMetadata, 0, 'did not fire loadedmetadata');
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assert.strictEqual(this.requests.length, 1, 'requests the media playlist');
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assert.strictEqual(this.requests[0].method, 'GET', 'GETs the media playlist');
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assert.strictEqual(this.requests[0].url,
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urlTo('media.m3u8'),
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'requests the first playlist');
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this.requests.pop().respond(200, null,
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'#EXTM3U\n' +
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'#EXTINF:10,\n' +
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'0.ts\n');
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assert.ok(loader.master, 'sets the master playlist');
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assert.ok(loader.media(), 'sets the media playlist');
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assert.strictEqual(loadedPlaylist, 2, 'fired loadedplaylist twice');
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assert.strictEqual(loadedMetadata, 1, 'fired loadedmetadata once');
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assert.strictEqual(loader.state, 'HAVE_METADATA', 'the state is correct');
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});
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QUnit.test('defaults missing media groups for a media playlist', function(assert) {
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let loader = new PlaylistLoader('master.m3u8', this.fakeHls);
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loader.load();
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this.requests.pop().respond(200, null,
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'#EXTM3U\n' +
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'#EXTINF:10,\n' +
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'0.ts\n');
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assert.ok(loader.master.mediaGroups.AUDIO, 'defaulted audio');
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assert.ok(loader.master.mediaGroups.VIDEO, 'defaulted video');
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assert.ok(loader.master.mediaGroups['CLOSED-CAPTIONS'], 'defaulted closed captions');
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assert.ok(loader.master.mediaGroups.SUBTITLES, 'defaulted subtitles');
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});
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QUnit.test('moves to HAVE_CURRENT_METADATA when refreshing the playlist', function(assert) {
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let loader = new PlaylistLoader('live.m3u8', this.fakeHls);
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loader.load();
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this.requests.pop().respond(200, null,
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'#EXTM3U\n' +
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'#EXTINF:10,\n' +
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'0.ts\n');
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// 10s, one target duration
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this.clock.tick(10 * 1000);
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assert.strictEqual(loader.state, 'HAVE_CURRENT_METADATA', 'the state is correct');
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assert.strictEqual(this.requests.length, 1, 'requested playlist');
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assert.strictEqual(this.requests[0].url,
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urlTo('live.m3u8'),
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'refreshes the media playlist');
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});
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QUnit.test('returns to HAVE_METADATA after refreshing the playlist', function(assert) {
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let loader = new PlaylistLoader('live.m3u8', this.fakeHls);
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loader.load();
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this.requests.pop().respond(200, null,
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'#EXTM3U\n' +
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'#EXTINF:10,\n' +
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'0.ts\n');
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// 10s, one target duration
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this.clock.tick(10 * 1000);
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this.requests.pop().respond(200, null,
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'#EXTM3U\n' +
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'#EXTINF:10,\n' +
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'1.ts\n');
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assert.strictEqual(loader.state, 'HAVE_METADATA', 'the state is correct');
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});
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QUnit.test('emits an error when an initial playlist request fails', function(assert) {
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let errors = [];
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let loader = new PlaylistLoader('master.m3u8', this.fakeHls);
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loader.load();
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loader.on('error', function() {
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errors.push(loader.error);
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});
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this.requests.pop().respond(500);
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assert.strictEqual(errors.length, 1, 'emitted one error');
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assert.strictEqual(errors[0].status, 500, 'http status is captured');
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});
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QUnit.test('errors when an initial media playlist request fails', function(assert) {
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let errors = [];
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let loader = new PlaylistLoader('master.m3u8', this.fakeHls);
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loader.load();
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loader.on('error', function() {
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errors.push(loader.error);
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});
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this.requests.pop().respond(200, null,
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'#EXTM3U\n' +
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'#EXT-X-STREAM-INF:\n' +
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'media.m3u8\n');
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assert.strictEqual(errors.length, 0, 'emitted no errors');
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this.requests.pop().respond(500);
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assert.strictEqual(errors.length, 1, 'emitted one error');
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assert.strictEqual(errors[0].status, 500, 'http status is captured');
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});
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// http://tools.ietf.org/html/draft-pantos-http-live-streaming-12#section-6.3.4
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QUnit.test('halves the refresh timeout if a playlist is unchanged since the last reload',
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function(assert) {
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let loader = new PlaylistLoader('live.m3u8', this.fakeHls);
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loader.load();
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this.requests.pop().respond(200, null,
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'#EXTM3U\n' +
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'#EXT-X-MEDIA-SEQUENCE:0\n' +
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'#EXTINF:10,\n' +
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'0.ts\n');
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// trigger a refresh
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this.clock.tick(10 * 1000);
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this.requests.pop().respond(200, null,
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'#EXTM3U\n' +
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'#EXT-X-MEDIA-SEQUENCE:0\n' +
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'#EXTINF:10,\n' +
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'0.ts\n');
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// half the default target-duration
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this.clock.tick(5 * 1000);
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assert.strictEqual(this.requests.length, 1, 'sent a request');
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assert.strictEqual(this.requests[0].url,
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urlTo('live.m3u8'),
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'requested the media playlist');
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});
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QUnit.test('preserves segment metadata across playlist refreshes', function(assert) {
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let loader = new PlaylistLoader('live.m3u8', this.fakeHls);
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let segment;
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loader.load();
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|
|
|
this.requests.pop().respond(200, null,
|
|
'#EXTM3U\n' +
|
|
'#EXT-X-MEDIA-SEQUENCE:0\n' +
|
|
'#EXTINF:10,\n' +
|
|
'0.ts\n' +
|
|
'#EXTINF:10,\n' +
|
|
'1.ts\n' +
|
|
'#EXTINF:10,\n' +
|
|
'2.ts\n');
|
|
// add PTS info to 1.ts
|
|
segment = loader.media().segments[1];
|
|
segment.minVideoPts = 14;
|
|
segment.maxAudioPts = 27;
|
|
segment.preciseDuration = 10.045;
|
|
|
|
// trigger a refresh
|
|
this.clock.tick(10 * 1000);
|
|
this.requests.pop().respond(200, null,
|
|
'#EXTM3U\n' +
|
|
'#EXT-X-MEDIA-SEQUENCE:1\n' +
|
|
'#EXTINF:10,\n' +
|
|
'1.ts\n' +
|
|
'#EXTINF:10,\n' +
|
|
'2.ts\n');
|
|
|
|
assert.deepEqual(loader.media().segments[0], segment, 'preserved segment attributes');
|
|
});
|
|
|
|
QUnit.test('clears the update timeout when switching quality', function(assert) {
|
|
let loader = new PlaylistLoader('live-master.m3u8', this.fakeHls);
|
|
let refreshes = 0;
|
|
|
|
loader.load();
|
|
|
|
// track the number of playlist refreshes triggered
|
|
loader.on('mediaupdatetimeout', function() {
|
|
refreshes++;
|
|
});
|
|
// deliver the master
|
|
this.requests.pop().respond(200, null,
|
|
'#EXTM3U\n' +
|
|
'#EXT-X-STREAM-INF:BANDWIDTH=1\n' +
|
|
'live-low.m3u8\n' +
|
|
'#EXT-X-STREAM-INF:BANDWIDTH=2\n' +
|
|
'live-high.m3u8\n');
|
|
// deliver the low quality playlist
|
|
this.requests.pop().respond(200, null,
|
|
'#EXTM3U\n' +
|
|
'#EXT-X-MEDIA-SEQUENCE:0\n' +
|
|
'#EXTINF:10,\n' +
|
|
'low-0.ts\n');
|
|
// change to a higher quality playlist
|
|
loader.media('live-high.m3u8');
|
|
this.requests.pop().respond(200, null,
|
|
'#EXTM3U\n' +
|
|
'#EXT-X-MEDIA-SEQUENCE:0\n' +
|
|
'#EXTINF:10,\n' +
|
|
'high-0.ts\n');
|
|
// trigger a refresh
|
|
this.clock.tick(10 * 1000);
|
|
|
|
assert.equal(1, refreshes, 'only one refresh was triggered');
|
|
});
|
|
|
|
QUnit.test('media-sequence updates are considered a playlist change', function(assert) {
|
|
let loader = new PlaylistLoader('live.m3u8', this.fakeHls);
|
|
|
|
loader.load();
|
|
|
|
this.requests.pop().respond(200, null,
|
|
'#EXTM3U\n' +
|
|
'#EXT-X-MEDIA-SEQUENCE:0\n' +
|
|
'#EXTINF:10,\n' +
|
|
'0.ts\n');
|
|
// trigger a refresh
|
|
this.clock.tick(10 * 1000);
|
|
this.requests.pop().respond(200, null,
|
|
'#EXTM3U\n' +
|
|
'#EXT-X-MEDIA-SEQUENCE:1\n' +
|
|
'#EXTINF:10,\n' +
|
|
'0.ts\n');
|
|
// half the default target-duration
|
|
this.clock.tick(5 * 1000);
|
|
|
|
assert.strictEqual(this.requests.length, 0, 'no request is sent');
|
|
});
|
|
|
|
QUnit.test('emits an error if a media refresh fails', function(assert) {
|
|
let errors = 0;
|
|
let errorResponseText = 'custom error message';
|
|
let loader = new PlaylistLoader('live.m3u8', this.fakeHls);
|
|
|
|
loader.load();
|
|
|
|
loader.on('error', function() {
|
|
errors++;
|
|
});
|
|
this.requests.pop().respond(200, null,
|
|
'#EXTM3U\n' +
|
|
'#EXT-X-MEDIA-SEQUENCE:0\n' +
|
|
'#EXTINF:10,\n' +
|
|
'0.ts\n');
|
|
// trigger a refresh
|
|
this.clock.tick(10 * 1000);
|
|
this.requests.pop().respond(500, null, errorResponseText);
|
|
|
|
assert.strictEqual(errors, 1, 'emitted an error');
|
|
assert.strictEqual(loader.error.status, 500, 'captured the status code');
|
|
assert.strictEqual(loader.error.responseText,
|
|
errorResponseText,
|
|
'captured the responseText');
|
|
});
|
|
|
|
QUnit.test('switches media playlists when requested', function(assert) {
|
|
let loader = new PlaylistLoader('master.m3u8', this.fakeHls);
|
|
|
|
loader.load();
|
|
|
|
this.requests.pop().respond(200, null,
|
|
'#EXTM3U\n' +
|
|
'#EXT-X-STREAM-INF:BANDWIDTH=1\n' +
|
|
'low.m3u8\n' +
|
|
'#EXT-X-STREAM-INF:BANDWIDTH=2\n' +
|
|
'high.m3u8\n');
|
|
this.requests.pop().respond(200, null,
|
|
'#EXTM3U\n' +
|
|
'#EXT-X-MEDIA-SEQUENCE:0\n' +
|
|
'#EXTINF:10,\n' +
|
|
'low-0.ts\n');
|
|
|
|
loader.media(loader.master.playlists[1]);
|
|
assert.strictEqual(loader.state, 'SWITCHING_MEDIA', 'updated the state');
|
|
|
|
this.requests.pop().respond(200, null,
|
|
'#EXTM3U\n' +
|
|
'#EXT-X-MEDIA-SEQUENCE:0\n' +
|
|
'#EXTINF:10,\n' +
|
|
'high-0.ts\n');
|
|
assert.strictEqual(loader.state, 'HAVE_METADATA', 'switched active media');
|
|
assert.strictEqual(loader.media(),
|
|
loader.master.playlists[1],
|
|
'updated the active media');
|
|
});
|
|
|
|
QUnit.test('can switch playlists immediately after the master is downloaded', function(assert) {
|
|
let loader = new PlaylistLoader('master.m3u8', this.fakeHls);
|
|
|
|
loader.load();
|
|
|
|
loader.on('loadedplaylist', function() {
|
|
loader.media('high.m3u8');
|
|
});
|
|
this.requests.pop().respond(200, null,
|
|
'#EXTM3U\n' +
|
|
'#EXT-X-STREAM-INF:BANDWIDTH=1\n' +
|
|
'low.m3u8\n' +
|
|
'#EXT-X-STREAM-INF:BANDWIDTH=2\n' +
|
|
'high.m3u8\n');
|
|
assert.equal(this.requests[0].url, urlTo('high.m3u8'), 'switched variants immediately');
|
|
});
|
|
|
|
QUnit.test('can switch media playlists based on URI', function(assert) {
|
|
let loader = new PlaylistLoader('master.m3u8', this.fakeHls);
|
|
|
|
loader.load();
|
|
|
|
this.requests.pop().respond(200, null,
|
|
'#EXTM3U\n' +
|
|
'#EXT-X-STREAM-INF:BANDWIDTH=1\n' +
|
|
'low.m3u8\n' +
|
|
'#EXT-X-STREAM-INF:BANDWIDTH=2\n' +
|
|
'high.m3u8\n');
|
|
this.requests.pop().respond(200, null,
|
|
'#EXTM3U\n' +
|
|
'#EXT-X-MEDIA-SEQUENCE:0\n' +
|
|
'#EXTINF:10,\n' +
|
|
'low-0.ts\n');
|
|
|
|
loader.media('high.m3u8');
|
|
assert.strictEqual(loader.state, 'SWITCHING_MEDIA', 'updated the state');
|
|
|
|
this.requests.pop().respond(200, null,
|
|
'#EXTM3U\n' +
|
|
'#EXT-X-MEDIA-SEQUENCE:0\n' +
|
|
'#EXTINF:10,\n' +
|
|
'high-0.ts\n');
|
|
assert.strictEqual(loader.state, 'HAVE_METADATA', 'switched active media');
|
|
assert.strictEqual(loader.media(),
|
|
loader.master.playlists[1],
|
|
'updated the active media');
|
|
});
|
|
|
|
QUnit.test('aborts in-flight playlist refreshes when switching', function(assert) {
|
|
let loader = new PlaylistLoader('master.m3u8', this.fakeHls);
|
|
|
|
loader.load();
|
|
|
|
this.requests.pop().respond(200, null,
|
|
'#EXTM3U\n' +
|
|
'#EXT-X-STREAM-INF:BANDWIDTH=1\n' +
|
|
'low.m3u8\n' +
|
|
'#EXT-X-STREAM-INF:BANDWIDTH=2\n' +
|
|
'high.m3u8\n');
|
|
this.requests.pop().respond(200, null,
|
|
'#EXTM3U\n' +
|
|
'#EXT-X-MEDIA-SEQUENCE:0\n' +
|
|
'#EXTINF:10,\n' +
|
|
'low-0.ts\n');
|
|
this.clock.tick(10 * 1000);
|
|
loader.media('high.m3u8');
|
|
assert.strictEqual(this.requests[0].aborted, true, 'aborted refresh request');
|
|
assert.ok(!this.requests[0].onreadystatechange,
|
|
'onreadystatechange handlers should be removed on abort');
|
|
assert.strictEqual(loader.state, 'SWITCHING_MEDIA', 'updated the state');
|
|
});
|
|
|
|
QUnit.test('switching to the active playlist is a no-op', function(assert) {
|
|
let loader = new PlaylistLoader('master.m3u8', this.fakeHls);
|
|
|
|
loader.load();
|
|
|
|
this.requests.pop().respond(200, null,
|
|
'#EXTM3U\n' +
|
|
'#EXT-X-STREAM-INF:BANDWIDTH=1\n' +
|
|
'low.m3u8\n' +
|
|
'#EXT-X-STREAM-INF:BANDWIDTH=2\n' +
|
|
'high.m3u8\n');
|
|
this.requests.pop().respond(200, null,
|
|
'#EXTM3U\n' +
|
|
'#EXT-X-MEDIA-SEQUENCE:0\n' +
|
|
'#EXTINF:10,\n' +
|
|
'low-0.ts\n' +
|
|
'#EXT-X-ENDLIST\n');
|
|
loader.media('low.m3u8');
|
|
|
|
assert.strictEqual(this.requests.length, 0, 'no requests are sent');
|
|
});
|
|
|
|
QUnit.test('switching to the active live playlist is a no-op', function(assert) {
|
|
let loader = new PlaylistLoader('master.m3u8', this.fakeHls);
|
|
|
|
loader.load();
|
|
|
|
this.requests.pop().respond(200, null,
|
|
'#EXTM3U\n' +
|
|
'#EXT-X-STREAM-INF:BANDWIDTH=1\n' +
|
|
'low.m3u8\n' +
|
|
'#EXT-X-STREAM-INF:BANDWIDTH=2\n' +
|
|
'high.m3u8\n');
|
|
this.requests.pop().respond(200, null,
|
|
'#EXTM3U\n' +
|
|
'#EXT-X-MEDIA-SEQUENCE:0\n' +
|
|
'#EXTINF:10,\n' +
|
|
'low-0.ts\n');
|
|
loader.media('low.m3u8');
|
|
|
|
assert.strictEqual(this.requests.length, 0, 'no requests are sent');
|
|
});
|
|
|
|
QUnit.test('switches back to loaded playlists without re-requesting them', function(assert) {
|
|
let loader = new PlaylistLoader('master.m3u8', this.fakeHls);
|
|
|
|
loader.load();
|
|
|
|
this.requests.pop().respond(200, null,
|
|
'#EXTM3U\n' +
|
|
'#EXT-X-STREAM-INF:BANDWIDTH=1\n' +
|
|
'low.m3u8\n' +
|
|
'#EXT-X-STREAM-INF:BANDWIDTH=2\n' +
|
|
'high.m3u8\n');
|
|
this.requests.pop().respond(200, null,
|
|
'#EXTM3U\n' +
|
|
'#EXT-X-MEDIA-SEQUENCE:0\n' +
|
|
'#EXTINF:10,\n' +
|
|
'low-0.ts\n' +
|
|
'#EXT-X-ENDLIST\n');
|
|
loader.media('high.m3u8');
|
|
this.requests.pop().respond(200, null,
|
|
'#EXTM3U\n' +
|
|
'#EXT-X-MEDIA-SEQUENCE:0\n' +
|
|
'#EXTINF:10,\n' +
|
|
'high-0.ts\n' +
|
|
'#EXT-X-ENDLIST\n');
|
|
loader.media('low.m3u8');
|
|
|
|
assert.strictEqual(this.requests.length, 0, 'no outstanding requests');
|
|
assert.strictEqual(loader.state, 'HAVE_METADATA', 'returned to loaded playlist');
|
|
});
|
|
|
|
QUnit.test('aborts outstanding requests if switching back to an already loaded playlist',
|
|
function(assert) {
|
|
let loader = new PlaylistLoader('master.m3u8', this.fakeHls);
|
|
|
|
loader.load();
|
|
|
|
this.requests.pop().respond(200, null,
|
|
'#EXTM3U\n' +
|
|
'#EXT-X-STREAM-INF:BANDWIDTH=1\n' +
|
|
'low.m3u8\n' +
|
|
'#EXT-X-STREAM-INF:BANDWIDTH=2\n' +
|
|
'high.m3u8\n');
|
|
this.requests.pop().respond(200, null,
|
|
'#EXTM3U\n' +
|
|
'#EXT-X-MEDIA-SEQUENCE:0\n' +
|
|
'#EXTINF:10,\n' +
|
|
'low-0.ts\n' +
|
|
'#EXT-X-ENDLIST\n');
|
|
loader.media('high.m3u8');
|
|
loader.media('low.m3u8');
|
|
|
|
assert.strictEqual(this.requests.length,
|
|
1,
|
|
'requested high playlist');
|
|
assert.ok(this.requests[0].aborted,
|
|
'aborted playlist request');
|
|
assert.ok(!this.requests[0].onreadystatechange,
|
|
'onreadystatechange handlers should be removed on abort');
|
|
assert.strictEqual(loader.state,
|
|
'HAVE_METADATA',
|
|
'returned to loaded playlist');
|
|
assert.strictEqual(loader.media(),
|
|
loader.master.playlists[0],
|
|
'switched to loaded playlist');
|
|
});
|
|
|
|
QUnit.test('does not abort requests when the same playlist is re-requested',
|
|
function(assert) {
|
|
let loader = new PlaylistLoader('master.m3u8', this.fakeHls);
|
|
|
|
loader.load();
|
|
|
|
this.requests.pop().respond(200, null,
|
|
'#EXTM3U\n' +
|
|
'#EXT-X-STREAM-INF:BANDWIDTH=1\n' +
|
|
'low.m3u8\n' +
|
|
'#EXT-X-STREAM-INF:BANDWIDTH=2\n' +
|
|
'high.m3u8\n');
|
|
this.requests.pop().respond(200, null,
|
|
'#EXTM3U\n' +
|
|
'#EXT-X-MEDIA-SEQUENCE:0\n' +
|
|
'#EXTINF:10,\n' +
|
|
'low-0.ts\n' +
|
|
'#EXT-X-ENDLIST\n');
|
|
loader.media('high.m3u8');
|
|
loader.media('high.m3u8');
|
|
|
|
assert.strictEqual(this.requests.length, 1, 'made only one request');
|
|
assert.ok(!this.requests[0].aborted, 'request not aborted');
|
|
});
|
|
|
|
QUnit.test('throws an error if a media switch is initiated too early', function(assert) {
|
|
let loader = new PlaylistLoader('master.m3u8', this.fakeHls);
|
|
|
|
loader.load();
|
|
|
|
assert.throws(function() {
|
|
loader.media('high.m3u8');
|
|
}, 'threw an error from HAVE_NOTHING');
|
|
|
|
this.requests.pop().respond(200, null,
|
|
'#EXTM3U\n' +
|
|
'#EXT-X-STREAM-INF:BANDWIDTH=1\n' +
|
|
'low.m3u8\n' +
|
|
'#EXT-X-STREAM-INF:BANDWIDTH=2\n' +
|
|
'high.m3u8\n');
|
|
});
|
|
|
|
QUnit.test('throws an error if a switch to an unrecognized playlist is requested',
|
|
function(assert) {
|
|
let loader = new PlaylistLoader('master.m3u8', this.fakeHls);
|
|
|
|
loader.load();
|
|
|
|
this.requests.pop().respond(200, null,
|
|
'#EXTM3U\n' +
|
|
'#EXT-X-STREAM-INF:BANDWIDTH=1\n' +
|
|
'media.m3u8\n');
|
|
|
|
assert.throws(function() {
|
|
loader.media('unrecognized.m3u8');
|
|
}, 'throws an error');
|
|
});
|
|
|
|
QUnit.test('dispose cancels the refresh timeout', function(assert) {
|
|
let loader = new PlaylistLoader('live.m3u8', this.fakeHls);
|
|
|
|
loader.load();
|
|
|
|
this.requests.pop().respond(200, null,
|
|
'#EXTM3U\n' +
|
|
'#EXT-X-MEDIA-SEQUENCE:0\n' +
|
|
'#EXTINF:10,\n' +
|
|
'0.ts\n');
|
|
loader.dispose();
|
|
// a lot of time passes...
|
|
this.clock.tick(15 * 1000);
|
|
|
|
assert.strictEqual(this.requests.length, 0, 'no refresh request was made');
|
|
});
|
|
|
|
QUnit.test('dispose aborts pending refresh requests', function(assert) {
|
|
let loader = new PlaylistLoader('live.m3u8', this.fakeHls);
|
|
|
|
loader.load();
|
|
|
|
this.requests.pop().respond(200, null,
|
|
'#EXTM3U\n' +
|
|
'#EXT-X-MEDIA-SEQUENCE:0\n' +
|
|
'#EXTINF:10,\n' +
|
|
'0.ts\n');
|
|
this.clock.tick(10 * 1000);
|
|
|
|
loader.dispose();
|
|
assert.ok(this.requests[0].aborted, 'refresh request aborted');
|
|
assert.ok(!this.requests[0].onreadystatechange,
|
|
'onreadystatechange handler should not exist after dispose called'
|
|
);
|
|
});
|
|
|
|
QUnit.test('errors if requests take longer than 45s', function(assert) {
|
|
let loader = new PlaylistLoader('media.m3u8', this.fakeHls);
|
|
let errors = 0;
|
|
|
|
loader.load();
|
|
|
|
loader.on('error', function() {
|
|
errors++;
|
|
});
|
|
this.clock.tick(45 * 1000);
|
|
|
|
assert.strictEqual(errors, 1, 'fired one error');
|
|
assert.strictEqual(loader.error.code, 2, 'fired a network error');
|
|
});
|
|
|
|
QUnit.test('triggers an event when the active media changes', function(assert) {
|
|
let loader = new PlaylistLoader('master.m3u8', this.fakeHls);
|
|
let mediaChanges = 0;
|
|
let mediaChangings = 0;
|
|
|
|
loader.load();
|
|
|
|
loader.on('mediachange', function() {
|
|
mediaChanges++;
|
|
});
|
|
loader.on('mediachanging', function() {
|
|
mediaChangings++;
|
|
});
|
|
this.requests.pop().respond(200, null,
|
|
'#EXTM3U\n' +
|
|
'#EXT-X-STREAM-INF:BANDWIDTH=1\n' +
|
|
'low.m3u8\n' +
|
|
'#EXT-X-STREAM-INF:BANDWIDTH=2\n' +
|
|
'high.m3u8\n');
|
|
this.requests.shift().respond(200, null,
|
|
'#EXTM3U\n' +
|
|
'#EXT-X-MEDIA-SEQUENCE:0\n' +
|
|
'#EXTINF:10,\n' +
|
|
'low-0.ts\n' +
|
|
'#EXT-X-ENDLIST\n');
|
|
assert.strictEqual(mediaChangings, 0, 'initial selection is not a media changing');
|
|
assert.strictEqual(mediaChanges, 0, 'initial selection is not a media change');
|
|
|
|
loader.media('high.m3u8');
|
|
assert.strictEqual(mediaChangings, 1, 'mediachanging fires immediately');
|
|
assert.strictEqual(mediaChanges, 0, 'mediachange does not fire immediately');
|
|
|
|
this.requests.shift().respond(200, null,
|
|
'#EXTM3U\n' +
|
|
'#EXT-X-MEDIA-SEQUENCE:0\n' +
|
|
'#EXTINF:10,\n' +
|
|
'high-0.ts\n' +
|
|
'#EXT-X-ENDLIST\n');
|
|
assert.strictEqual(mediaChangings, 1, 'still one mediachanging');
|
|
assert.strictEqual(mediaChanges, 1, 'fired a mediachange');
|
|
|
|
// switch back to an already loaded playlist
|
|
loader.media('low.m3u8');
|
|
assert.strictEqual(mediaChangings, 2, 'mediachanging fires');
|
|
assert.strictEqual(mediaChanges, 2, 'fired a mediachange');
|
|
|
|
// trigger a no-op switch
|
|
loader.media('low.m3u8');
|
|
assert.strictEqual(mediaChangings, 2, 'mediachanging ignored the no-op');
|
|
assert.strictEqual(mediaChanges, 2, 'ignored a no-op media change');
|
|
});
|
|
|
|
QUnit.test('does not misintrepret playlists missing newlines at the end', function(assert) {
|
|
let loader = new PlaylistLoader('media.m3u8', this.fakeHls);
|
|
|
|
loader.load();
|
|
|
|
// no newline
|
|
this.requests.shift().respond(200, null,
|
|
'#EXTM3U\n' +
|
|
'#EXT-X-MEDIA-SEQUENCE:0\n' +
|
|
'#EXTINF:10,\n' +
|
|
'low-0.ts\n' +
|
|
'#EXT-X-ENDLIST');
|
|
assert.ok(loader.media().endList, 'flushed the final line of input');
|
|
});
|