gecko-dev/content/media/test/test_played.html

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<!DOCTYPE HTML>
<html>
<head>
<title>Test played member for media elements</title>
<script type="text/javascript" src="/MochiKit/MochiKit.js"></script>
<script type="text/javascript" src="/tests/SimpleTest/SimpleTest.js"></script>
<link rel="stylesheet" type="text/css" href="/tests/SimpleTest/test.css" />
<script type="text/javascript" src="manifest.js"></script>
</head>
<body>
<pre id='test'>
<script class="testbody" type='application/javascript;version=1.8'>
let manager = new MediaTestManager;
function finish_test(element) {
if (element.parentNode)
element.parentNode.removeChild(element);
element.src="";
manager.finished(element.token);
}
// Check that a file has been played in its entirety.
function check_full_file_played(element) {
element.addEventListener('ended', (function(e) {
let interval_count = e.target.played.length;
is(interval_count, 1, "normal play : a.played.length must be 1");
is(element.played.start(0), 0, "start time shall be 0");
is(element.played.end(0), e.target.duration, "end time shall be duration");
finish_test(e.target);
}), false);
}
var tests = [
// Without playing, check that player.played.length == 0.
{
setup : function(element) {
element.addEventListener("loadedmetadata", function() {
is(element.played.length, 0, "audio : initial played.length equals zero");
finish_test(element);
});
}
},
// Play the file, test the range we have.
{
setup : function(element) {
check_full_file_played(element);
element.play();
}
},
// Play the second half of the file, pause, play
// an check we have only one range.
{
setup : function (element) {
element.addEventListener("ended", function (e) {
var t = e.target;
check_full_file_played(t);
t.pause();
t.currentTime = 0;
t.play();
}, false);
element.addEventListener("loadedmetadata", function() {
element.currentTime = element.duration / 2;
element.play();
}, false);
}
},
// Play the first half of the file, seek back, while
// continuing to play. We shall have only one range.
{
setup : function (element) {
let onTimeUpdate = function() {
if (element.currentTime > element.duration/2) {
element.removeEventListener("timeupdate", onTimeUpdate, false);
element.pause();
var oldEndRange = element.played.end(0);
element.currentTime = element.duration / 4;
is(element.played.end(0), oldEndRange,
"When seeking back, |played| should not be changed");
element.play();
}
}
element.addEventListener("timeupdate", onTimeUpdate, false);
check_full_file_played(element);
element.play();
}
},
// Play and seek to have two ranges, and check that, as well a
// boundaries.
{
setup : function (element) {
let onTimeUpdate = function() {
if (element.currentTime > element.duration / 2) {
element.removeEventListener("timeupdate", onTimeUpdate, false);
element.pause();
element.currentTime += element.duration/10;
element.play();
}
}
element.addEventListener("loadedmetadata", function() {
element.addEventListener("timeupdate", onTimeUpdate, false);
}, false);
element.addEventListener("ended", (function() {
if(element.played.length > 1) {
is(element.played.length, 2, "element.played.length == 2");
var guess = element.played.end(0) + element.duration/10.0;
ok(rangeCheck(element.played.start(1), guess), "we should have seeked forward by one tenth of the duration");
is(element.played.end(1), element.duration, "end of second range shall be the total duration");
}
is(element.played.start(0), 0, "start of first range shall be 0");
finish_test(element);
}), false);
element.play();
}
},
// Play to create two ranges, in the reverse order. check that they are sorted.
{
setup : function (element) {
function end() {
element.pause();
let p = element.played;
ok(p.length >= 1, "There should be at least one range");
is(p.start(0), element.duration/6, "Start of first range should be the sixth of the duration");
ok(p.end(p.length - 1) > 5*element.duration/6, "End of last range should be greater that five times the sixth of the duration");
finish_test(element);
}
function pauseseekrestart() {
element.pause();
element.currentTime = element.duration/6;
element.play();
}
function onTimeUpdate_pauseseekrestart() {
if (element.currentTime > 5*element.duration/6) {
element.removeEventListener("timeupdate", onTimeUpdate_pauseseekrestart, false);
pauseseekrestart();
element.addEventListener("timeupdate", onTimeUpdate_end, false);
}
}
function onTimeUpdate_end() {
if (element.currentTime > 3 * element.duration/6) {
element.removeEventListener("timeupdate", onTimeUpdate_end, false);
end();
}
}
element.addEventListener("timeupdate", onTimeUpdate_pauseseekrestart, false);
element.addEventListener('loadedmetadata', function() {
element.currentTime = 4 * element.duration/6;
element.play();
}, false);
}
},
// Seek repeatedly without playing. No range should appear.
{
setup : function(element) {
let index = 1;
element.addEventListener('seeked', function() {
index++;
element.currentTime = index * element.duration / 5;
is(element.played.length, 0, "element.played.length should be 0");
if (index == 5) {
finish_test(element);
}
}, false);
element.addEventListener('loadedmetadata', function() {
element.currentTime = element.duration / 5;
}, false);
}
}
];
function rangeCheck(n1, n2) {
var THRESHOLD = 0.35;
var diff = Math.abs(n1 - n2);
if (diff < THRESHOLD) {
return true;
}
return false;
}
function createTestArray() {
var A = [];
for (var i=0; i<tests.length; i++) {
for (var k=0; k<gPlayedTests.length; k++) {
var t = new Object();
t.setup = tests[i].setup;
t.name = gPlayedTests[k].name;
t.type = gPlayedTests[k].type;
A.push(t);
}
}
return A;
}
function startTest(test, token) {
var elemType = /^audio/.test(test.type) ? "audio" : "video";
var element = document.createElement(elemType);
element.src = test.name;
element.token = token;
element.volume = 0;
test.setup(element);
manager.started(token);
}
manager.runTests(createTestArray(), startTest);
</script>
</pre>
</body>
</html>