videojs-hls_test.js
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(function(window, videojs, undefined) {
/*
======== A Handy Little QUnit Reference ========
http://api.qunitjs.com/
Test methods:
module(name, {[setup][ ,teardown]})
test(name, callback)
expect(numberOfAssertions)
stop(increment)
start(decrement)
Test assertions:
ok(value, [message])
equal(actual, expected, [message])
notEqual(actual, expected, [message])
deepEqual(actual, expected, [message])
notDeepEqual(actual, expected, [message])
strictEqual(actual, expected, [message])
notStrictEqual(actual, expected, [message])
throws(block, [expected], [message])
*/
var
player,
oldFlashSupported,
oldXhr,
oldSegmentParser,
oldSetTimeout,
oldSourceBuffer,
oldSupportsNativeHls,
xhrUrls,
mockSegmentParser = function(tags) {
if (tags === undefined) {
tags = [];
}
return function() {
this.getFlvHeader = function() {
return 'flv';
};
this.parseSegmentBinaryData = function() {};
this.flushTags = function() {};
this.tagsAvailable = function() {
return tags.length;
};
this.getTags = function() {
return tags;
};
this.getNextTag = function() {
return tags.shift();
};
};
};
module('HLS', {
setup: function() {
// mock out Flash feature for phantomjs
oldFlashSupported = videojs.Flash.isSupported;
videojs.Flash.isSupported = function() {
return true;
};
oldSourceBuffer = window.videojs.SourceBuffer;
window.videojs.SourceBuffer = function() {
this.appendBuffer = function() {};
};
// force native HLS to be ignored
oldSupportsNativeHls = videojs.hls.supportsNativeHls;
videojs.hls.supportsNativeHls = false;
// create the test player
var video = document.createElement('video');
document.querySelector('#qunit-fixture').appendChild(video);
player = videojs(video, {
flash: {
swf: '../node_modules/video.js/dist/video-js/video-js.swf'
},
techOrder: ['flash']
});
player.buffered = function() {
return videojs.createTimeRange(0, 0);
};
// store functionality that some tests need to mock
oldSegmentParser = videojs.hls.SegmentParser;
oldSetTimeout = window.setTimeout;
// make XHRs synchronous
oldXhr = window.XMLHttpRequest;
window.XMLHttpRequest = function() {
this.open = function(method, url) {
xhrUrls.push(url);
};
this.send = function() {
// if the request URL looks like one of the test manifests, grab the
// contents off the global object
var manifestName = (/(?:.*\/)?(.*)\.m3u8/).exec(xhrUrls.slice(-1)[0]);
if (manifestName) {
manifestName = manifestName[1];
}
this.responseText = window.manifests[manifestName || xhrUrls.slice(-1)[0]];
this.response = new Uint8Array([1]).buffer;
this.readyState = 4;
this.onreadystatechange();
};
};
xhrUrls = [];
},
teardown: function() {
videojs.Flash.isSupported = oldFlashSupported;
videojs.hls.supportsNativeHls = oldSupportsNativeHls;
videojs.hls.SegmentParser = oldSegmentParser;
videojs.SourceBuffer = oldSourceBuffer;
window.setTimeout = oldSetTimeout;
window.XMLHttpRequest = oldXhr;
}
});
test('loads the specified manifest URL on init', function() {
var loadedmanifest = false, loadedmetadata = false;
player.on('loadedmanifest', function() {
loadedmanifest = true;
});
player.on('loadedmetadata', function() {
loadedmetadata = true;
});
player.hls('manifest/playlist.m3u8');
strictEqual(player.hls.readyState(), 0, 'the readyState is HAVE_NOTHING');
videojs.mediaSources[player.currentSrc()].trigger({
type: 'sourceopen'
});
ok(loadedmanifest, 'loadedmanifest fires');
ok(loadedmetadata, 'loadedmetadata fires');
ok(player.hls.master, 'a master is inferred');
ok(player.hls.media, 'the manifest is available');
ok(player.hls.media.segments, 'the segment entries are parsed');
strictEqual(player.hls.master.playlists[0],
player.hls.media,
'the playlist is selected');
strictEqual(player.hls.readyState(), 1, 'the readyState is HAVE_METADATA');
});
test('sets the duration if one is available on the playlist', function() {
var calls = 0;
player.duration = function(value) {
if (value === undefined) {
return 0;
}
calls++;
};
player.hls('manifest/media.m3u8');
videojs.mediaSources[player.currentSrc()].trigger({
type: 'sourceopen'
});
strictEqual(1, calls, 'duration is set');
});
test('calculates the duration if needed', function() {
var durations = [];
player.duration = function(duration) {
if (duration === undefined) {
return 0;
}
durations.push(duration);
};
player.hls('manifest/liveMissingSegmentDuration.m3u8');
videojs.mediaSources[player.currentSrc()].trigger({
type: 'sourceopen'
});
strictEqual(durations.length, 1, 'duration is set');
strictEqual(durations[0], 6.64 + (2 * 8), 'duration is calculated');
});
test('starts downloading a segment on loadedmetadata', function() {
player.hls('manifest/media.m3u8');
player.buffered = function() {
return videojs.createTimeRange(0, 0);
};
videojs.mediaSources[player.currentSrc()].trigger({
type: 'sourceopen'
});
strictEqual(xhrUrls[1],
window.location.origin +
window.location.pathname.split('/').slice(0, -1).join('/') +
'/manifest/00001.ts',
'the first segment is requested');
});
test('recognizes absolute URIs and requests them unmodified', function() {
player.hls('manifest/absoluteUris.m3u8');
videojs.mediaSources[player.currentSrc()].trigger({
type: 'sourceopen'
});
strictEqual(xhrUrls[1],
'http://example.com/00001.ts',
'the first segment is requested');
});
test('recognizes domain-relative URLs', function() {
player.hls('manifest/domainUris.m3u8');
videojs.mediaSources[player.currentSrc()].trigger({
type: 'sourceopen'
});
strictEqual(xhrUrls[1],
window.location.origin + '/00001.ts',
'the first segment is requested');
});
test('re-initializes the plugin for each source', function() {
var firstInit, secondInit;
player.hls('manifest/master.m3u8');
firstInit = player.hls;
player.hls('manifest/master.m3u8');
secondInit = player.hls;
notStrictEqual(firstInit, secondInit, 'the plugin object is replaced');
});
test('triggers an error when a master playlist request errors', function() {
var
status = 0,
error;
window.XMLHttpRequest = function() {
this.open = function() {};
this.send = function() {
this.readyState = 4;
this.status = status;
this.onreadystatechange();
};
};
player.on('error', function() {
error = player.hls.error;
});
player.hls('manifest/master.m3u8');
videojs.mediaSources[player.currentSrc()].trigger({
type: 'sourceopen'
});
ok(error, 'an error is triggered');
strictEqual(2, error.code, 'a network error is triggered');
});
test('downloads media playlists after loading the master', function() {
player.hls('manifest/master.m3u8');
videojs.mediaSources[player.currentSrc()].trigger({
type: 'sourceopen'
});
strictEqual(xhrUrls[0], 'manifest/master.m3u8', 'master playlist requested');
strictEqual(xhrUrls[1],
window.location.origin +
window.location.pathname.split('/').slice(0, -1).join('/') +
'/manifest/media.m3u8',
'media playlist requested');
strictEqual(xhrUrls[2],
window.location.origin +
window.location.pathname.split('/').slice(0, -1).join('/') +
'/manifest/00001.ts',
'first segment requested');
});
test('timeupdates do not check to fill the buffer until a media playlist is ready', function() {
var urls = [];
window.XMLHttpRequest = function() {
this.open = function(method, url) {
urls.push(url);
};
this.send = function() {};
};
player.hls('manifest/media.m3u8');
videojs.mediaSources[player.currentSrc()].trigger({
type: 'sourceopen'
});
player.trigger('timeupdate');
strictEqual(1, urls.length, 'one request was made');
strictEqual('manifest/media.m3u8', urls[0], 'media playlist requested');
});
test('calculates the bandwidth after downloading a segment', function() {
player.hls('manifest/media.m3u8');
videojs.mediaSources[player.currentSrc()].trigger({
type: 'sourceopen'
});
ok(player.hls.bandwidth, 'bandwidth is calculated');
ok(player.hls.bandwidth > 0,
'bandwidth is positive: ' + player.hls.bandwidth);
ok(player.hls.segmentXhrTime >= 0,
'saves segment request time: ' + player.hls.segmentXhrTime + 's');
});
test('selects a playlist after segment downloads', function() {
var calls = 0;
player.hls('manifest/master.m3u8');
player.hls.selectPlaylist = function() {
calls++;
return player.hls.master.playlists[0];
};
videojs.mediaSources[player.currentSrc()].trigger({
type: 'sourceopen'
});
strictEqual(calls, 1, 'selects after the initial segment');
player.currentTime = function() {
return 1;
};
player.buffered = function() {
return videojs.createTimeRange(0, 2);
};
player.trigger('timeupdate');
strictEqual(calls, 2, 'selects after additional segments');
});
test('moves to the next segment if there is a network error', function() {
var mediaIndex;
player.hls('manifest/master.m3u8');
videojs.mediaSources[player.currentSrc()].trigger({
type: 'sourceopen'
});
// fail the next segment request
window.XMLHttpRequest = function() {
this.open = function() {};
this.send = function() {
this.readyState = 4;
this.status = 400;
this.onreadystatechange();
};
};
mediaIndex = player.hls.mediaIndex;
player.trigger('timeupdate');
strictEqual(mediaIndex + 1, player.hls.mediaIndex, 'media index is incremented');
});
test('updates the duration after switching playlists', function() {
var
calls = 0,
selectedPlaylist = false;
player.hls('manifest/master.m3u8');
player.hls.selectPlaylist = function() {
selectedPlaylist = true;
return player.hls.master.playlists[1];
};
player.duration = function(duration) {
if (duration === undefined) {
return 0;
}
// only track calls that occur after the playlist has been switched
if (player.hls.media === player.hls.master.playlists[1]) {
calls++;
}
};
videojs.mediaSources[player.currentSrc()].trigger({
type: 'sourceopen'
});
ok(selectedPlaylist, 'selected playlist');
strictEqual(calls, 1, 'updates the duration');
});
test('downloads additional playlists if required', function() {
var
called = false,
playlist = {
uri: 'media3.m3u8'
};
player.hls('manifest/master.m3u8');
videojs.mediaSources[player.currentSrc()].trigger({
type: 'sourceopen'
});
// before an m3u8 is downloaded, no segments are available
player.hls.selectPlaylist = function() {
if (!called) {
called = true;
return playlist;
}
playlist.segments = [];
return playlist;
};
xhrUrls = [];
// the playlist selection is revisited after a new segment is downloaded
player.currentTime = function() {
return 1;
};
player.trigger('timeupdate');
strictEqual(2, xhrUrls.length, 'requests were made');
strictEqual(xhrUrls[1],
window.location.origin +
window.location.pathname.split('/').slice(0, -1).join('/') +
'/manifest/' +
playlist.uri,
'made playlist request');
strictEqual(playlist, player.hls.media, 'a new playlists was selected');
ok(player.hls.media.segments, 'segments are now available');
});
test('selects a playlist below the current bandwidth', function() {
var playlist;
player.hls('manifest/master.m3u8');
videojs.mediaSources[player.currentSrc()].trigger({
type: 'sourceopen'
});
// the default playlist has a really high bitrate
player.hls.master.playlists[0].attributes.BANDWIDTH = 9e10;
// playlist 1 has a very low bitrate
player.hls.master.playlists[1].attributes.BANDWIDTH = 1;
// but the detected client bandwidth is really low
player.hls.bandwidth = 10;
playlist = player.hls.selectPlaylist();
strictEqual(playlist,
player.hls.master.playlists[1],
'the low bitrate stream is selected');
});
test('raises the minimum bitrate for a stream proportionially', function() {
var playlist;
player.hls('manifest/master.m3u8');
videojs.mediaSources[player.currentSrc()].trigger({
type: 'sourceopen'
});
// the default playlist's bandwidth + 10% is equal to the current bandwidth
player.hls.master.playlists[0].attributes.BANDWIDTH = 10;
player.hls.bandwidth = 11;
// 9.9 * 1.1 < 11
player.hls.master.playlists[1].attributes.BANDWIDTH = 9.9;
playlist = player.hls.selectPlaylist();
strictEqual(playlist,
player.hls.master.playlists[1],
'a lower bitrate stream is selected');
});
test('uses the lowest bitrate if no other is suitable', function() {
var playlist;
player.hls('manifest/master.m3u8');
videojs.mediaSources[player.currentSrc()].trigger({
type: 'sourceopen'
});
// the lowest bitrate playlist is much greater than 1b/s
player.hls.bandwidth = 1;
playlist = player.hls.selectPlaylist();
// playlist 1 has the lowest advertised bitrate
strictEqual(playlist,
player.hls.master.playlists[1],
'the lowest bitrate stream is selected');
});
test('selects the correct rendition by player dimensions', function() {
var playlist;
player.hls('manifest/master.m3u8');
videojs.mediaSources[player.currentSrc()].trigger({
type: 'sourceopen'
});
player.width(640);
player.height(360);
player.hls.bandwidth = 3000000;
playlist = player.hls.selectPlaylist();
deepEqual(playlist.attributes.RESOLUTION, {width:396,height:224},'should return the correct resolution by player dimensions');
equal(playlist.attributes.BANDWIDTH, 440000, 'should have the expected bandwidth in case of multiple');
player.width(1920);
player.height(1080);
player.hls.bandwidth = 3000000;
playlist = player.hls.selectPlaylist();
deepEqual(playlist.attributes.RESOLUTION, {width:960,height:540},'should return the correct resolution by player dimensions');
equal(playlist.attributes.BANDWIDTH, 1928000, 'should have the expected bandwidth in case of multiple');
});
test('does not download the next segment if the buffer is full', function() {
player.hls('manifest/media.m3u8');
player.currentTime = function() {
return 15;
};
player.buffered = function() {
return videojs.createTimeRange(0, 20);
};
videojs.mediaSources[player.currentSrc()].trigger({
type: 'sourceopen'
});
player.trigger('timeupdate');
strictEqual(xhrUrls.length, 1, 'no segment request was made');
});
test('downloads the next segment if the buffer is getting low', function() {
player.hls('manifest/media.m3u8');
videojs.mediaSources[player.currentSrc()].trigger({
type: 'sourceopen'
});
strictEqual(xhrUrls.length, 2, 'did not make a request');
player.currentTime = function() {
return 15;
};
player.buffered = function() {
return videojs.createTimeRange(0, 19.999);
};
player.trigger('timeupdate');
strictEqual(xhrUrls.length, 3, 'made a request');
strictEqual(xhrUrls[2],
window.location.origin +
window.location.pathname.split('/').slice(0, -1).join('/') +
'/manifest/00002.ts',
'made segment request');
});
test('stops downloading segments at the end of the playlist', function() {
player.hls('manifest/media.m3u8');
videojs.mediaSources[player.currentSrc()].trigger({
type: 'sourceopen'
});
xhrUrls = [];
player.hls.mediaIndex = 4;
player.trigger('timeupdate');
strictEqual(xhrUrls.length, 0, 'no request is made');
});
test('only makes one segment request at a time', function() {
var openedXhrs = 0;
player.hls('manifest/media.m3u8');
videojs.mediaSources[player.currentSrc()].trigger({
type: 'sourceopen'
});
// mock out a long-running XHR
window.XMLHttpRequest = function() {
this.send = function() {};
this.open = function() {
openedXhrs++;
};
};
player.trigger('timeupdate');
strictEqual(1, openedXhrs, 'one XHR is made');
player.trigger('timeupdate');
strictEqual(1, openedXhrs, 'only one XHR is made');
});
test('uses the src attribute if no options are provided and it ends in ".m3u8"', function() {
var url = 'http://example.com/services/mobile/streaming/index/master.m3u8?videoId=1824650741001';
player.el().querySelector('.vjs-tech').src = url;
player.hls();
videojs.mediaSources[player.currentSrc()].trigger({
type: 'sourceopen'
});
strictEqual(url, xhrUrls[0], 'currentSrc is used');
});
test('ignores src attribute if it doesn\'t have the "m3u8" extension', function() {
var tech = player.el().querySelector('.vjs-tech');
tech.src = 'basdfasdfasdfliel//.m3u9';
player.hls();
ok(!(player.currentSrc() in videojs.mediaSources), 'no media source is created');
strictEqual(xhrUrls.length, 0, 'no request is made');
tech.src = '';
player.hls();
ok(!(player.currentSrc() in videojs.mediaSources), 'no media source is created');
strictEqual(xhrUrls.length, 0, 'no request is made');
tech.src = 'http://example.com/movie.mp4?q=why.m3u8';
player.hls();
ok(!(player.currentSrc() in videojs.mediaSources), 'no media source is created');
strictEqual(xhrUrls.length, 0, 'no request is made');
tech.src = 'http://example.m3u8/movie.mp4';
player.hls();
ok(!(player.currentSrc() in videojs.mediaSources), 'no media source is created');
strictEqual(xhrUrls.length, 0, 'no request is made');
tech.src = '//example.com/movie.mp4#http://tricky.com/master.m3u8';
player.hls();
ok(!(player.currentSrc() in videojs.mediaSources), 'no media source is created');
strictEqual(xhrUrls.length, 0, 'no request is made');
});
test('activates if the first playable source is HLS', function() {
var video;
document.querySelector('#qunit-fixture').innerHTML =
'<video controls>' +
'<source type="slartibartfast$%" src="movie.slarti">' +
'<source type="application/x-mpegURL" src="movie.m3u8">' +
'<source type="video/mp4" src="movie.mp4">' +
'</video>';
video = document.querySelector('#qunit-fixture video');
player = videojs(video, {
flash: {
swf: '../node_modules/video.js/dist/video-js/video-js.swf'
},
techOrder: ['flash']
});
player.hls();
ok(player.currentSrc() in videojs.mediaSources, 'media source created');
});
test('cancels outstanding XHRs when seeking', function() {
var
aborted = false,
opened = 0;
player.hls('manifest/media.m3u8');
videojs.mediaSources[player.currentSrc()].trigger({
type: 'sourceopen'
});
player.hls.media = {
segments: [{
uri: '0.ts',
duration: 10
}, {
uri: '1.ts',
duration: 10
}]
};
// XHR requests will never complete
window.XMLHttpRequest = function() {
this.open = function() {
opened++;
};
this.send = function() {};
this.abort = function() {
aborted = true;
this.readyState = 4;
this.status = 0;
this.onreadystatechange();
};
};
// trigger a segment download request
player.trigger('timeupdate');
opened = 0;
// attempt to seek while the download is in progress
player.trigger('seeking');
ok(aborted, 'XHR aborted');
strictEqual(1, opened, 'opened new XHR');
});
test('flushes the parser after each segment', function() {
var flushes = 0;
// mock out the segment parser
videojs.hls.SegmentParser = function() {
this.getFlvHeader = function() {
return [];
};
this.parseSegmentBinaryData = function() {};
this.flushTags = function() {
flushes++;
};
this.tagsAvailable = function() {};
};
player.hls('manifest/media.m3u8');
videojs.mediaSources[player.currentSrc()].trigger({
type: 'sourceopen'
});
strictEqual(1, flushes, 'tags are flushed at the end of a segment');
});
test('drops tags before the target timestamp when seeking', function() {
var
i = 10,
callbacks = [],
tags = [],
bytes = [];
// mock out the parser and source buffer
videojs.hls.SegmentParser = mockSegmentParser(tags);
window.videojs.SourceBuffer = function() {
this.appendBuffer = function(chunk) {
bytes.push(chunk);
};
};
// capture timeouts
window.setTimeout = function(callback) {
callbacks.push(callback);
};
// push a tag into the buffer
tags.push({ pts: 0, bytes: 0 });
player.hls('manifest/media.m3u8');
videojs.mediaSources[player.currentSrc()].trigger({
type: 'sourceopen'
});
while (callbacks.length) {
callbacks.shift()();
}
// mock out a new segment of FLV tags
bytes = [];
while (i--) {
tags.unshift({
pts: i * 1000,
bytes: i
});
}
player.currentTime = function() {
return 7;
};
player.trigger('seeking');
while (callbacks.length) {
callbacks.shift()();
}
deepEqual(bytes, [7,8,9], 'three tags are appended');
});
test('clears pending buffer updates when seeking', function() {
var
bytes = [],
callbacks = [],
tags = [{ pts: 0, bytes: 0 }];
// mock out the parser and source buffer
videojs.hls.SegmentParser = mockSegmentParser(tags);
window.videojs.SourceBuffer = function() {
this.appendBuffer = function(chunk) {
bytes.push(chunk);
};
};
// capture timeouts
window.setTimeout = function(callback) {
callbacks.push(callback);
};
// queue up a tag to be pushed into the buffer (but don't push it yet!)
player.hls('manifest/media.m3u8');
videojs.mediaSources[player.currentSrc()].trigger({
type: 'sourceopen'
});
// seek to 7s
tags.push({ pts: 7000, bytes: 7 });
player.currentTime = function() {
return 7;
};
player.trigger('seeking');
while (callbacks.length) {
callbacks.shift()();
}
deepEqual(bytes, ['flv', 7], 'tags queued to be appended should be cancelled');
});
test('playlist 404 should trigger MEDIA_ERR_NETWORK', function() {
var errorTriggered = false;
window.XMLHttpRequest = function() {
this.open = function(method, url) {
xhrUrls.push(url);
};
this.send = function() {
this.readyState = 4;
this.status = 404;
this.onreadystatechange();
};
};
player.hls('manifest/media.m3u8');
player.on('error', function() {
errorTriggered = true;
});
videojs.mediaSources[player.currentSrc()].trigger({
type: 'sourceopen'
});
equal(true, errorTriggered, 'Missing Playlist error event should trigger');
equal(2, player.hls.error.code, 'Player error code should be set to MediaError.MEDIA_ERR_NETWORK');
ok(player.hls.error.message, 'Player error type should inform user correctly');
});
test('segment 404 should trigger MEDIA_ERR_NETWORK', function () {
player.hls('manifest/media.m3u8');
player.on('loadedmanifest', function () {
window.XMLHttpRequest = function () {
this.open = function (method, url) {
xhrUrls.push(url);
};
this.send = function () {
this.readyState = 4;
this.status = 404;
this.onreadystatechange();
};
};
});
videojs.mediaSources[player.currentSrc()].trigger({
type: 'sourceopen'
});
ok(player.hls.error.message, 'an error message is available');
equal(2, player.hls.error.code, 'Player error code should be set to MediaError.MEDIA_ERR_NETWORK');
});
test('segment 500 should trigger MEDIA_ERR_ABORTED', function () {
player.hls('manifest/media.m3u8');
player.on('loadedmanifest', function () {
window.XMLHttpRequest = function () {
this.open = function (method, url) {
xhrUrls.push(url);
};
this.send = function () {
this.readyState = 4;
this.status = 500;
this.onreadystatechange();
};
};
});
videojs.mediaSources[player.currentSrc()].trigger({
type: 'sourceopen'
});
ok(player.hls.error.message, 'an error message is available');
equal(4, player.hls.error.code, 'Player error code should be set to MediaError.MEDIA_ERR_ABORTED');
});
test('has no effect if native HLS is available', function() {
videojs.hls.supportsNativeHls = true;
player.hls('manifest/master.m3u8');
ok(!(player.currentSrc() in videojs.mediaSources),
'no media source was opened');
});
})(window, window.videojs);