import QUnit from 'qunit';
import {
default as PlaylistLoader,
updateSegments,
updateMaster,
setupMediaPlaylists,
resolveMediaGroupUris,
refreshDelay
} from '../src/playlist-loader';
import xhrFactory from '../src/xhr';
import { useFakeEnvironment } from './test-helpers';
import window from 'global/window';
// Attempts to produce an absolute URL to a given relative path
// based on window.location.href
const urlTo = function(path) {
return window.location.href
.split('/')
.slice(0, -1)
.concat([path])
.join('/');
};
QUnit.module('Playlist Loader', {
beforeEach(assert) {
this.env = useFakeEnvironment(assert);
this.clock = this.env.clock;
this.requests = this.env.requests;
this.fakeHls = {
xhr: xhrFactory()
};
},
afterEach() {
this.env.restore();
}
});
QUnit.test('updateSegments copies over properties', function(assert) {
assert.deepEqual(
[
{ uri: 'test-uri-0', startTime: 0, endTime: 10 },
{
uri: 'test-uri-1',
startTime: 10,
endTime: 20,
map: { someProp: 99, uri: '4' }
}
],
updateSegments(
[
{ uri: 'test-uri-0', startTime: 0, endTime: 10 },
{ uri: 'test-uri-1', startTime: 10, endTime: 20, map: { someProp: 1 } }
],
[
{ uri: 'test-uri-0' },
{ uri: 'test-uri-1', map: { someProp: 99, uri: '4' } }
],
0),
'retains properties from original segment');
assert.deepEqual(
[
{ uri: 'test-uri-0', map: { someProp: 100 } },
{ uri: 'test-uri-1', map: { someProp: 99, uri: '4' } }
],
updateSegments(
[
{ uri: 'test-uri-0' },
{ uri: 'test-uri-1', map: { someProp: 1 } }
],
[
{ uri: 'test-uri-0', map: { someProp: 100 } },
{ uri: 'test-uri-1', map: { someProp: 99, uri: '4' } }
],
0),
'copies over/overwrites properties without offset');
assert.deepEqual(
[
{ uri: 'test-uri-1', map: { someProp: 1 } },
{ uri: 'test-uri-2', map: { someProp: 100, uri: '2' } }
],
updateSegments(
[
{ uri: 'test-uri-0' },
{ uri: 'test-uri-1', map: { someProp: 1 } }
],
[
{ uri: 'test-uri-1' },
{ uri: 'test-uri-2', map: { someProp: 100, uri: '2' } }
],
1),
'copies over/overwrites properties with offset of 1');
assert.deepEqual(
[
{ uri: 'test-uri-2' },
{ uri: 'test-uri-3', map: { someProp: 100, uri: '2' } }
],
updateSegments(
[
{ uri: 'test-uri-0' },
{ uri: 'test-uri-1', map: { someProp: 1 } }
],
[
{ uri: 'test-uri-2' },
{ uri: 'test-uri-3', map: { someProp: 100, uri: '2' } }
],
2),
'copies over/overwrites properties with offset of 2');
});
QUnit.test('updateMaster returns null when no playlists', function(assert) {
const master = {
playlists: []
};
const media = {};
assert.deepEqual(updateMaster(master, media), null, 'returns null when no playlists');
});
QUnit.test('updateMaster returns null when no change', function(assert) {
const master = {
playlists: [{
mediaSequence: 0,
attributes: {
BANDWIDTH: 9
},
uri: 'playlist-0-uri',
resolvedUri: urlTo('playlist-0-uri'),
segments: [{
duration: 10,
uri: 'segment-0-uri',
resolvedUri: urlTo('segment-0-uri')
}]
}]
};
const media = {
mediaSequence: 0,
attributes: {
BANDWIDTH: 9
},
uri: 'playlist-0-uri',
segments: [{
duration: 10,
uri: 'segment-0-uri'
}]
};
assert.deepEqual(updateMaster(master, media), null, 'returns null');
});
QUnit.test('updateMaster updates master when new media sequence', function(assert) {
const master = {
playlists: [{
mediaSequence: 0,
attributes: {
BANDWIDTH: 9
},
uri: 'playlist-0-uri',
resolvedUri: urlTo('playlist-0-uri'),
segments: [{
duration: 10,
uri: 'segment-0-uri',
resolvedUri: urlTo('segment-0-uri')
}]
}]
};
const media = {
mediaSequence: 1,
attributes: {
BANDWIDTH: 9
},
uri: 'playlist-0-uri',
segments: [{
duration: 10,
uri: 'segment-0-uri'
}]
};
assert.deepEqual(
updateMaster(master, media),
{
playlists: [{
mediaSequence: 1,
attributes: {
BANDWIDTH: 9
},
uri: 'playlist-0-uri',
resolvedUri: urlTo('playlist-0-uri'),
segments: [{
duration: 10,
uri: 'segment-0-uri',
resolvedUri: urlTo('segment-0-uri')
}]
}]
},
'updates master when new media sequence');
});
QUnit.test('updateMaster retains top level values in master', function(assert) {
const master = {
mediaGroups: {
AUDIO: {
'GROUP-ID': {
default: true,
uri: 'audio-uri'
}
}
},
playlists: [{
mediaSequence: 0,
attributes: {
BANDWIDTH: 9
},
uri: 'playlist-0-uri',
resolvedUri: urlTo('playlist-0-uri'),
segments: [{
duration: 10,
uri: 'segment-0-uri',
resolvedUri: urlTo('segment-0-uri')
}]
}]
};
const media = {
mediaSequence: 1,
attributes: {
BANDWIDTH: 9
},
uri: 'playlist-0-uri',
segments: [{
duration: 10,
uri: 'segment-0-uri'
}]
};
assert.deepEqual(
updateMaster(master, media),
{
mediaGroups: {
AUDIO: {
'GROUP-ID': {
default: true,
uri: 'audio-uri'
}
}
},
playlists: [{
mediaSequence: 1,
attributes: {
BANDWIDTH: 9
},
uri: 'playlist-0-uri',
resolvedUri: urlTo('playlist-0-uri'),
segments: [{
duration: 10,
uri: 'segment-0-uri',
resolvedUri: urlTo('segment-0-uri')
}]
}]
},
'retains top level values in master');
});
QUnit.test('updateMaster adds new segments to master', function(assert) {
const master = {
mediaGroups: {
AUDIO: {
'GROUP-ID': {
default: true,
uri: 'audio-uri'
}
}
},
playlists: [{
mediaSequence: 0,
attributes: {
BANDWIDTH: 9
},
uri: 'playlist-0-uri',
resolvedUri: urlTo('playlist-0-uri'),
segments: [{
duration: 10,
uri: 'segment-0-uri',
resolvedUri: urlTo('segment-0-uri')
}]
}]
};
const media = {
mediaSequence: 1,
attributes: {
BANDWIDTH: 9
},
uri: 'playlist-0-uri',
segments: [{
duration: 10,
uri: 'segment-0-uri'
}, {
duration: 9,
uri: 'segment-1-uri'
}]
};
assert.deepEqual(
updateMaster(master, media),
{
mediaGroups: {
AUDIO: {
'GROUP-ID': {
default: true,
uri: 'audio-uri'
}
}
},
playlists: [{
mediaSequence: 1,
attributes: {
BANDWIDTH: 9
},
uri: 'playlist-0-uri',
resolvedUri: urlTo('playlist-0-uri'),
segments: [{
duration: 10,
uri: 'segment-0-uri',
resolvedUri: urlTo('segment-0-uri')
}, {
duration: 9,
uri: 'segment-1-uri',
resolvedUri: urlTo('segment-1-uri')
}]
}]
},
'adds new segment to master');
});
QUnit.test('updateMaster changes old values', function(assert) {
const master = {
mediaGroups: {
AUDIO: {
'GROUP-ID': {
default: true,
uri: 'audio-uri'
}
}
},
playlists: [{
mediaSequence: 0,
attributes: {
BANDWIDTH: 9
},
uri: 'playlist-0-uri',
resolvedUri: urlTo('playlist-0-uri'),
segments: [{
duration: 10,
uri: 'segment-0-uri',
resolvedUri: urlTo('segment-0-uri')
}]
}]
};
const media = {
mediaSequence: 1,
attributes: {
BANDWIDTH: 8,
newField: 1
},
uri: 'playlist-0-uri',
segments: [{
duration: 8,
uri: 'segment-0-uri'
}, {
duration: 10,
uri: 'segment-1-uri'
}]
};
assert.deepEqual(
updateMaster(master, media),
{
mediaGroups: {
AUDIO: {
'GROUP-ID': {
default: true,
uri: 'audio-uri'
}
}
},
playlists: [{
mediaSequence: 1,
attributes: {
BANDWIDTH: 8,
newField: 1
},
uri: 'playlist-0-uri',
resolvedUri: urlTo('playlist-0-uri'),
segments: [{
duration: 8,
uri: 'segment-0-uri',
resolvedUri: urlTo('segment-0-uri')
}, {
duration: 10,
uri: 'segment-1-uri',
resolvedUri: urlTo('segment-1-uri')
}]
}]
},
'changes old values');
});
QUnit.test('updateMaster retains saved segment values', function(assert) {
const master = {
playlists: [{
mediaSequence: 0,
uri: 'playlist-0-uri',
resolvedUri: urlTo('playlist-0-uri'),
segments: [{
duration: 10,
uri: 'segment-0-uri',
resolvedUri: urlTo('segment-0-uri'),
startTime: 0,
endTime: 10
}]
}]
};
const media = {
mediaSequence: 0,
uri: 'playlist-0-uri',
segments: [{
duration: 8,
uri: 'segment-0-uri'
}, {
duration: 10,
uri: 'segment-1-uri'
}]
};
assert.deepEqual(
updateMaster(master, media),
{
playlists: [{
mediaSequence: 0,
uri: 'playlist-0-uri',
resolvedUri: urlTo('playlist-0-uri'),
segments: [{
duration: 8,
uri: 'segment-0-uri',
resolvedUri: urlTo('segment-0-uri'),
startTime: 0,
endTime: 10
}, {
duration: 10,
uri: 'segment-1-uri',
resolvedUri: urlTo('segment-1-uri')
}]
}]
},
'retains saved segment values');
});
QUnit.test('updateMaster resolves key and map URIs', function(assert) {
const master = {
playlists: [{
mediaSequence: 0,
attributes: {
BANDWIDTH: 9
},
uri: 'playlist-0-uri',
resolvedUri: urlTo('playlist-0-uri'),
segments: [{
duration: 10,
uri: 'segment-0-uri',
resolvedUri: urlTo('segment-0-uri')
}, {
duration: 10,
uri: 'segment-1-uri',
resolvedUri: urlTo('segment-1-uri')
}]
}]
};
const media = {
mediaSequence: 3,
attributes: {
BANDWIDTH: 9
},
uri: 'playlist-0-uri',
segments: [{
duration: 9,
uri: 'segment-2-uri',
key: {
uri: 'key-2-uri'
},
map: {
uri: 'map-2-uri'
}
}, {
duration: 11,
uri: 'segment-3-uri',
key: {
uri: 'key-3-uri'
},
map: {
uri: 'map-3-uri'
}
}]
};
assert.deepEqual(
updateMaster(master, media),
{
playlists: [{
mediaSequence: 3,
attributes: {
BANDWIDTH: 9
},
uri: 'playlist-0-uri',
resolvedUri: urlTo('playlist-0-uri'),
segments: [{
duration: 9,
uri: 'segment-2-uri',
resolvedUri: urlTo('segment-2-uri'),
key: {
uri: 'key-2-uri',
resolvedUri: urlTo('key-2-uri')
},
map: {
uri: 'map-2-uri',
resolvedUri: urlTo('map-2-uri')
}
}, {
duration: 11,
uri: 'segment-3-uri',
resolvedUri: urlTo('segment-3-uri'),
key: {
uri: 'key-3-uri',
resolvedUri: urlTo('key-3-uri')
},
map: {
uri: 'map-3-uri',
resolvedUri: urlTo('map-3-uri')
}
}]
}]
},
'resolves key and map URIs');
});
QUnit.test('setupMediaPlaylists does nothing if no playlists', function(assert) {
const master = {
playlists: []
};
setupMediaPlaylists(master);
assert.deepEqual(master, {
playlists: []
}, 'master remains unchanged');
});
QUnit.test('setupMediaPlaylists adds URI keys for each playlist', function(assert) {
const master = {
uri: 'master-uri',
playlists: [{
uri: 'uri-0'
}, {
uri: 'uri-1'
}]
};
const expectedPlaylist0 = {
attributes: {},
resolvedUri: urlTo('uri-0'),
uri: 'uri-0'
};
const expectedPlaylist1 = {
attributes: {},
resolvedUri: urlTo('uri-1'),
uri: 'uri-1'
};
setupMediaPlaylists(master);
assert.deepEqual(master.playlists[0], expectedPlaylist0, 'retained playlist indices');
assert.deepEqual(master.playlists[1], expectedPlaylist1, 'retained playlist indices');
assert.deepEqual(master.playlists['uri-0'], expectedPlaylist0, 'added playlist key');
assert.deepEqual(master.playlists['uri-1'], expectedPlaylist1, 'added playlist key');
assert.equal(this.env.log.warn.calls, 2, 'logged two warnings');
assert.equal(this.env.log.warn.args[0],
'Invalid playlist STREAM-INF detected. Missing BANDWIDTH attribute.',
'logged a warning');
assert.equal(this.env.log.warn.args[1],
'Invalid playlist STREAM-INF detected. Missing BANDWIDTH attribute.',
'logged a warning');
});
QUnit.test('setupMediaPlaylists adds attributes objects if missing', function(assert) {
const master = {
uri: 'master-uri',
playlists: [{
uri: 'uri-0'
}, {
uri: 'uri-1'
}]
};
setupMediaPlaylists(master);
assert.ok(master.playlists[0].attributes, 'added attributes object');
assert.ok(master.playlists[1].attributes, 'added attributes object');
assert.equal(this.env.log.warn.calls, 2, 'logged two warnings');
assert.equal(this.env.log.warn.args[0],
'Invalid playlist STREAM-INF detected. Missing BANDWIDTH attribute.',
'logged a warning');
assert.equal(this.env.log.warn.args[1],
'Invalid playlist STREAM-INF detected. Missing BANDWIDTH attribute.',
'logged a warning');
});
QUnit.test('setupMediaPlaylists resolves playlist URIs', function(assert) {
const master = {
uri: 'master-uri',
playlists: [{
attributes: { BANDWIDTH: 10 },
uri: 'uri-0'
}, {
attributes: { BANDWIDTH: 100 },
uri: 'uri-1'
}]
};
setupMediaPlaylists(master);
assert.equal(master.playlists[0].resolvedUri, urlTo('uri-0'), 'resolves URI');
assert.equal(master.playlists[1].resolvedUri, urlTo('uri-1'), 'resolves URI');
});
QUnit.test('resolveMediaGroupUris does nothing when no media groups', function(assert) {
const master = {
uri: 'master-uri',
playlists: [],
mediaGroups: []
};
resolveMediaGroupUris(master);
assert.deepEqual(master, {
uri: 'master-uri',
playlists: [],
mediaGroups: []
}, 'does nothing when no media groups');
});
QUnit.test('resolveMediaGroupUris resolves media group URIs', function(assert) {
const master = {
uri: 'master-uri',
playlists: [{
attributes: { BANDWIDTH: 10 },
uri: 'playlist-0'
}],
mediaGroups: {
// CLOSED-CAPTIONS will never have a URI
'CLOSED-CAPTIONS': {
cc1: {
English: {}
}
},
'AUDIO': {
low: {
// audio doesn't need a URI if it is a label for muxed
main: {},
commentary: {
uri: 'audio-low-commentary-uri'
}
},
high: {
main: {},
commentary: {
uri: 'audio-high-commentary-uri'
}
}
},
'SUBTITLES': {
sub1: {
english: {
uri: 'subtitles-1-english-uri'
},
spanish: {
uri: 'subtitles-1-spanish-uri'
}
},
sub2: {
english: {
uri: 'subtitles-2-english-uri'
},
spanish: {
uri: 'subtitles-2-spanish-uri'
}
},
sub3: {
english: {
uri: 'subtitles-3-english-uri'
},
spanish: {
uri: 'subtitles-3-spanish-uri'
}
}
}
}
};
resolveMediaGroupUris(master);
assert.deepEqual(master, {
uri: 'master-uri',
playlists: [{
attributes: { BANDWIDTH: 10 },
uri: 'playlist-0'
}],
mediaGroups: {
// CLOSED-CAPTIONS will never have a URI
'CLOSED-CAPTIONS': {
cc1: {
English: {}
}
},
'AUDIO': {
low: {
// audio doesn't need a URI if it is a label for muxed
main: {},
commentary: {
uri: 'audio-low-commentary-uri',
resolvedUri: urlTo('audio-low-commentary-uri')
}
},
high: {
main: {},
commentary: {
uri: 'audio-high-commentary-uri',
resolvedUri: urlTo('audio-high-commentary-uri')
}
}
},
'SUBTITLES': {
sub1: {
english: {
uri: 'subtitles-1-english-uri',
resolvedUri: urlTo('subtitles-1-english-uri')
},
spanish: {
uri: 'subtitles-1-spanish-uri',
resolvedUri: urlTo('subtitles-1-spanish-uri')
}
},
sub2: {
english: {
uri: 'subtitles-2-english-uri',
resolvedUri: urlTo('subtitles-2-english-uri')
},
spanish: {
uri: 'subtitles-2-spanish-uri',
resolvedUri: urlTo('subtitles-2-spanish-uri')
}
},
sub3: {
english: {
uri: 'subtitles-3-english-uri',
resolvedUri: urlTo('subtitles-3-english-uri')
},
spanish: {
uri: 'subtitles-3-spanish-uri',
resolvedUri: urlTo('subtitles-3-spanish-uri')
}
}
}
}
}, 'resolved URIs of certain media groups');
});
QUnit.test('uses last segment duration for refresh delay', function(assert) {
const media = { targetDuration: 7, segments: [] };
assert.equal(refreshDelay(media, true), 3500,
'used half targetDuration when no segments');
media.segments = [ { duration: 6}, { duration: 4 }, { } ];
assert.equal(refreshDelay(media, true), 3500,
'used half targetDuration when last segment duration cannot be determined');
media.segments = [ { duration: 6}, { duration: 4}, { duration: 5 } ];
assert.equal(refreshDelay(media, true), 5000, 'used last segment duration for delay');
assert.equal(refreshDelay(media, false), 3500,
'used half targetDuration when update is false');
});
QUnit.test('throws if the playlist url is empty or undefined', function(assert) {
assert.throws(function() {
PlaylistLoader();
}, 'requires an argument');
assert.throws(function() {
PlaylistLoader('');
}, 'does not accept the empty string');
});
QUnit.test('starts without any metadata', function(assert) {
let loader = new PlaylistLoader('master.m3u8', this.fakeHls);
loader.load();
assert.strictEqual(loader.state, 'HAVE_NOTHING', 'no metadata has loaded yet');
});
QUnit.test('requests the initial playlist immediately', function(assert) {
let loader = new PlaylistLoader('master.m3u8', this.fakeHls);
loader.load();
assert.strictEqual(this.requests.length, 1, 'made a request');
assert.strictEqual(this.requests[0].url,
'master.m3u8',
'requested the initial playlist');
});
QUnit.test('moves to HAVE_MASTER after loading a master playlist', function(assert) {
let loader = new PlaylistLoader('master.m3u8', this.fakeHls);
let state;
loader.load();
loader.on('loadedplaylist', function() {
state = loader.state;
});
this.requests.pop().respond(200, null,
'#EXTM3U\n' +
'#EXT-X-STREAM-INF:BANDWIDTH=1\n' +
'media.m3u8\n');
assert.ok(loader.master, 'the master playlist is available');
assert.strictEqual(state, 'HAVE_MASTER', 'the state at loadedplaylist correct');
});
QUnit.test('logs warning for master playlist with invalid STREAM-INF', 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' +
'video1/media.m3u8\n' +
'#EXT-X-STREAM-INF:\n' +
'video2/media.m3u8\n');
assert.ok(loader.master, 'infers a master playlist');
assert.equal(loader.master.playlists[1].uri, 'video2/media.m3u8',
'parsed invalid stream');
assert.ok(loader.master.playlists[1].attributes, 'attached attributes property');
assert.equal(this.env.log.warn.calls, 1, 'logged a warning');
assert.equal(this.env.log.warn.args[0],
'Invalid playlist STREAM-INF detected. Missing BANDWIDTH attribute.',
'logged a warning');
});
QUnit.test('jumps to HAVE_METADATA when initialized with a media playlist',
function(assert) {
let loadedmetadatas = 0;
let loader = new PlaylistLoader('media.m3u8', this.fakeHls);
loader.load();
loader.on('loadedmetadata', function() {
loadedmetadatas++;
});
this.requests.pop().respond(200, null,
'#EXTM3U\n' +
'#EXTINF:10,\n' +
'0.ts\n' +
'#EXT-X-ENDLIST\n');
assert.ok(loader.master, 'infers a master playlist');
assert.ok(loader.media(), 'sets the media playlist');
assert.ok(loader.media().uri, 'sets the media playlist URI');
assert.ok(loader.media().attributes, 'sets the media playlist attributes');
assert.strictEqual(loader.state, 'HAVE_METADATA', 'the state is correct');
assert.strictEqual(this.requests.length, 0, 'no more requests are made');
assert.strictEqual(loadedmetadatas, 1, 'fired one loadedmetadata');
});
QUnit.test('resolves relative media playlist URIs', function(assert) {
let loader = new PlaylistLoader('master.m3u8', this.fakeHls);
loader.load();
this.requests.shift().respond(200, null,
'#EXTM3U\n' +
'#EXT-X-STREAM-INF:BANDWIDTH=1\n' +
'video/media.m3u8\n');
assert.equal(loader.master.playlists[0].resolvedUri, urlTo('video/media.m3u8'),
'resolved media URI');
});
QUnit.test('resolves media initialization segment URIs', function(assert) {
let loader = new PlaylistLoader('video/fmp4.m3u8', this.fakeHls);
loader.load();
this.requests.shift().respond(200, null,
'#EXTM3U\n' +
'#EXT-X-MAP:URI="main.mp4",BYTERANGE="720@0"\n' +
'#EXTINF:10,\n' +
'0.ts\n' +
'#EXT-X-ENDLIST\n');
assert.equal(loader.media().segments[0].map.resolvedUri, urlTo('video/main.mp4'),
'resolved init segment URI');
});
QUnit.test('recognizes absolute URIs and requests them unmodified', function(assert) {
let loader = new PlaylistLoader('manifest/media.m3u8', this.fakeHls);
loader.load();
this.requests.shift().respond(200, null,
'#EXTM3U\n' +
'#EXT-X-STREAM-INF:BANDWIDTH=1\n' +
'http://example.com/video/media.m3u8\n');
assert.equal(loader.master.playlists[0].resolvedUri,
'http://example.com/video/media.m3u8', 'resolved media URI');
this.requests.shift().respond(200, null,
'#EXTM3U\n' +
'#EXTINF:10,\n' +
'http://example.com/00001.ts\n' +
'#EXT-X-ENDLIST\n');
assert.equal(loader.media().segments[0].resolvedUri,
'http://example.com/00001.ts', 'resolved segment URI');
});
QUnit.test('recognizes domain-relative URLs', function(assert) {
let loader = new PlaylistLoader('manifest/media.m3u8', this.fakeHls);
loader.load();
this.requests.shift().respond(200, null,
'#EXTM3U\n' +
'#EXT-X-STREAM-INF:BANDWIDTH=1\n' +
'/media.m3u8\n');
assert.equal(loader.master.playlists[0].resolvedUri,
window.location.protocol + '//' +
window.location.host + '/media.m3u8',
'resolved media URI');
this.requests.shift().respond(200, null,
'#EXTM3U\n' +
'#EXTINF:10,\n' +
'/00001.ts\n' +
'#EXT-X-ENDLIST\n');
assert.equal(loader.media().segments[0].resolvedUri,
window.location.protocol + '//' +
window.location.host + '/00001.ts',
'resolved segment URI');
});
QUnit.test('recognizes redirect, when manifest requested', function(assert) {
let loader = new PlaylistLoader('manifest/media.m3u8', this.fakeHls, {
handleManifestRedirects: true
});
loader.load();
const manifestRequest = this.requests.shift();
manifestRequest.responseURL = window.location.protocol + '//' +
'foo-bar.com/manifest/media.m3u8';
manifestRequest.respond(200, null,
'#EXTM3U\n' +
'#EXT-X-STREAM-INF:BANDWIDTH=1\n' +
'/media.m3u8\n');
assert.equal(loader.master.playlists[0].resolvedUri,
window.location.protocol + '//' +
'foo-bar.com/media.m3u8',
'resolved media URI');
this.requests.shift().respond(200, null,
'#EXTM3U\n' +
'#EXTINF:10,\n' +
'/00001.ts\n' +
'#EXT-X-ENDLIST\n');
assert.equal(loader.media().segments[0].resolvedUri,
window.location.protocol + '//' +
'foo-bar.com/00001.ts',
'resolved segment URI');
});
QUnit.test('recognizes redirect, when media requested', function(assert) {
let loader = new PlaylistLoader('manifest/media.m3u8', this.fakeHls, {
handleManifestRedirects: true
});
loader.load();
this.requests.shift().respond(200, null,
'#EXTM3U\n' +
'#EXT-X-STREAM-INF:BANDWIDTH=1\n' +
'/media.m3u8\n');
assert.equal(loader.master.playlists[0].resolvedUri,
window.location.protocol + '//' +
window.location.host + '/media.m3u8',
'resolved media URI');
const mediaRequest = this.requests.shift();
mediaRequest.responseURL = window.location.protocol + '//' +
'foo-bar.com/media.m3u8';
mediaRequest.respond(200, null,
'#EXTM3U\n' +
'#EXTINF:10,\n' +
'/00001.ts\n' +
'#EXT-X-ENDLIST\n');
assert.equal(loader.media().segments[0].resolvedUri,
window.location.protocol + '//' +
'foo-bar.com/00001.ts',
'resolved segment URI');
});
QUnit.test('recognizes key URLs relative to master and playlist', function(assert) {
let loader = new PlaylistLoader('/video/media-encrypted.m3u8', this.fakeHls);
loader.load();
this.requests.shift().respond(200, null,
'#EXTM3U\n' +
'#EXT-X-STREAM-INF:PROGRAM-ID=1,BANDWIDTH=17\n' +
'playlist/playlist.m3u8\n' +
'#EXT-X-ENDLIST\n');
assert.equal(loader.master.playlists[0].resolvedUri,
window.location.protocol + '//' +
window.location.host + '/video/playlist/playlist.m3u8',
'resolved media URI');
this.requests.shift().respond(200, null,
'#EXTM3U\n' +
'#EXT-X-TARGETDURATION:15\n' +
'#EXT-X-KEY:METHOD=AES-128,URI="keys/key.php"\n' +
'#EXTINF:2.833,\n' +
'http://example.com/000001.ts\n' +
'#EXT-X-ENDLIST\n');
assert.equal(loader.media().segments[0].key.resolvedUri,
window.location.protocol + '//' +
window.location.host + '/video/playlist/keys/key.php',
'resolved multiple relative paths for key URI');
});
QUnit.test('trigger an error event when a media playlist 404s', function(assert) {
let count = 0;
let loader = new PlaylistLoader('manifest/master.m3u8', this.fakeHls);
loader.load();
loader.on('error', function() {
count += 1;
});
// master
this.requests.shift().respond(200, null,
'#EXTM3U\n' +
'#EXT-X-STREAM-INF:PROGRAM-ID=1,BANDWIDTH=17\n' +
'playlist/playlist.m3u8\n' +
'#EXT-X-STREAM-INF:PROGRAM-ID=2,BANDWIDTH=170\n' +
'playlist/playlist2.m3u8\n' +
'#EXT-X-ENDLIST\n');
assert.equal(count, 0,
'error not triggered before requesting playlist');
// playlist
this.requests.shift().respond(404);
assert.equal(count, 1,
'error triggered after playlist 404');
});
QUnit.test('recognizes absolute key URLs', function(assert) {
let loader = new PlaylistLoader('/video/media-encrypted.m3u8', this.fakeHls);
loader.load();
this.requests.shift().respond(200, null,
'#EXTM3U\n' +
'#EXT-X-STREAM-INF:PROGRAM-ID=1,BANDWIDTH=17\n' +
'playlist/playlist.m3u8\n' +
'#EXT-X-ENDLIST\n');
assert.equal(loader.master.playlists[0].resolvedUri,
window.location.protocol + '//' +
window.location.host + '/video/playlist/playlist.m3u8',
'resolved media URI');
this.requests.shift().respond(
200,
null,
'#EXTM3U\n' +
'#EXT-X-TARGETDURATION:15\n' +
'#EXT-X-KEY:METHOD=AES-128,URI="http://example.com/keys/key.php"\n' +
'#EXTINF:2.833,\n' +
'http://example.com/000001.ts\n' +
'#EXT-X-ENDLIST\n'
);
assert.equal(loader.media().segments[0].key.resolvedUri,
'http://example.com/keys/key.php', 'resolved absolute path for key URI');
});
QUnit.test('jumps to HAVE_METADATA when initialized with a live media playlist',
function(assert) {
let loader = new PlaylistLoader('media.m3u8', this.fakeHls);
loader.load();
this.requests.pop().respond(200, null,
'#EXTM3U\n' +
'#EXTINF:10,\n' +
'0.ts\n');
assert.ok(loader.master, 'infers a master playlist');
assert.ok(loader.media(), 'sets the media playlist');
assert.ok(loader.media().attributes, 'sets the media playlist attributes');
assert.strictEqual(loader.state, 'HAVE_METADATA', 'the state is correct');
});
QUnit.test('moves to HAVE_METADATA after loading a media playlist', function(assert) {
let loadedPlaylist = 0;
let loadedMetadata = 0;
let loader = new PlaylistLoader('master.m3u8', this.fakeHls);
loader.load();
loader.on('loadedplaylist', function() {
loadedPlaylist++;
});
loader.on('loadedmetadata', function() {
loadedMetadata++;
});
this.requests.pop().respond(200, null,
'#EXTM3U\n' +
'#EXT-X-STREAM-INF:BANDWIDTH=1\n' +
'media.m3u8\n' +
'#EXT-X-STREAM-INF:BANDWIDTH=1\n' +
'alt.m3u8\n');
assert.strictEqual(loadedPlaylist, 1, 'fired loadedplaylist once');
assert.strictEqual(loadedMetadata, 0, 'did not fire loadedmetadata');
assert.strictEqual(this.requests.length, 1, 'requests the media playlist');
assert.strictEqual(this.requests[0].method, 'GET', 'GETs the media playlist');
assert.strictEqual(this.requests[0].url,
urlTo('media.m3u8'),
'requests the first playlist');
this.requests.pop().respond(200, null,
'#EXTM3U\n' +
'#EXTINF:10,\n' +
'0.ts\n');
assert.ok(loader.master, 'sets the master playlist');
assert.ok(loader.media(), 'sets the media playlist');
assert.strictEqual(loadedPlaylist, 2, 'fired loadedplaylist twice');
assert.strictEqual(loadedMetadata, 1, 'fired loadedmetadata once');
assert.strictEqual(loader.state, 'HAVE_METADATA', 'the state is correct');
});
QUnit.test('defaults missing media groups for a media playlist', function(assert) {
let loader = new PlaylistLoader('master.m3u8', this.fakeHls);
loader.load();
this.requests.pop().respond(200, null,
'#EXTM3U\n' +
'#EXTINF:10,\n' +
'0.ts\n');
assert.ok(loader.master.mediaGroups.AUDIO, 'defaulted audio');
assert.ok(loader.master.mediaGroups.VIDEO, 'defaulted video');
assert.ok(loader.master.mediaGroups['CLOSED-CAPTIONS'], 'defaulted closed captions');
assert.ok(loader.master.mediaGroups.SUBTITLES, 'defaulted subtitles');
});
QUnit.test('moves to HAVE_CURRENT_METADATA when refreshing the playlist',
function(assert) {
let loader = new PlaylistLoader('live.m3u8', this.fakeHls);
loader.load();
this.requests.pop().respond(200, null,
'#EXTM3U\n' +
'#EXTINF:10,\n' +
'0.ts\n');
// 10s, one target duration
this.clock.tick(10 * 1000);
assert.strictEqual(loader.state, 'HAVE_CURRENT_METADATA', 'the state is correct');
assert.strictEqual(this.requests.length, 1, 'requested playlist');
assert.strictEqual(this.requests[0].url,
urlTo('live.m3u8'),
'refreshes the media playlist');
});
QUnit.test('returns to HAVE_METADATA after refreshing the playlist', function(assert) {
let loader = new PlaylistLoader('live.m3u8', this.fakeHls);
loader.load();
this.requests.pop().respond(200, null,
'#EXTM3U\n' +
'#EXTINF:10,\n' +
'0.ts\n');
// 10s, one target duration
this.clock.tick(10 * 1000);
this.requests.pop().respond(200, null,
'#EXTM3U\n' +
'#EXTINF:10,\n' +
'1.ts\n');
assert.strictEqual(loader.state, 'HAVE_METADATA', 'the state is correct');
});
QUnit.test('refreshes the playlist after last segment duration', function(assert) {
let loader = new PlaylistLoader('live.m3u8', this.fakeHls);
let refreshes = 0;
loader.on('mediaupdatetimeout', () => refreshes++);
loader.load();
this.requests.pop().respond(200, null,
'#EXTM3U\n' +
'#EXT-X-TARGETDURATION:10\n' +
'#EXTINF:10,\n' +
'0.ts\n' +
'#EXTINF:4\n' +
'1.ts\n');
// 4s, last segment duration
this.clock.tick(4 * 1000);
assert.equal(refreshes, 1, 'refreshed playlist after last segment duration');
});
QUnit.test('emits an error when an initial playlist request fails', function(assert) {
let errors = [];
let loader = new PlaylistLoader('master.m3u8', this.fakeHls);
loader.load();
loader.on('error', function() {
errors.push(loader.error);
});
this.requests.pop().respond(500);
assert.strictEqual(errors.length, 1, 'emitted one error');
assert.strictEqual(errors[0].status, 500, 'http status is captured');
});
QUnit.test('errors when an initial media playlist request fails', function(assert) {
let errors = [];
let loader = new PlaylistLoader('master.m3u8', this.fakeHls);
loader.load();
loader.on('error', function() {
errors.push(loader.error);
});
this.requests.pop().respond(200, null,
'#EXTM3U\n' +
'#EXT-X-STREAM-INF:BANDWIDTH=1\n' +
'media.m3u8\n');
assert.strictEqual(errors.length, 0, 'emitted no errors');
this.requests.pop().respond(500);
assert.strictEqual(errors.length, 1, 'emitted one error');
assert.strictEqual(errors[0].status, 500, 'http status is captured');
});
// http://tools.ietf.org/html/draft-pantos-http-live-streaming-12#section-6.3.4
QUnit.test('halves the refresh timeout if a playlist is unchanged since the last reload',
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:0\n' +
'#EXTINF:10,\n' +
'0.ts\n');
// half the default target-duration
this.clock.tick(5 * 1000);
assert.strictEqual(this.requests.length, 1, 'sent a request');
assert.strictEqual(this.requests[0].url,
urlTo('live.m3u8'),
'requested the media playlist');
});
QUnit.test('preserves segment metadata across playlist refreshes', function(assert) {
let loader = new PlaylistLoader('live.m3u8', this.fakeHls);
let segment;
loader.load();
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,
'HAVE_METADATA',
'the state is set accoring to the startingState');
});
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');
});