dom/media/test/test_play_promise_18.html


1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46

<!DOCTYPE HTML>
<html>
<head>
  <title>Media test: promise-based play() method</title>
  <script 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>
// Name: 'playing' event should come before promise resolving
// Case: invoke play() on an element which has valis source
// Expected result: receive a 'playing' event before the promise is resolved

let manager = new MediaTestManager;

function initTest(test, token) {
  manager.started(token);

  let element = document.createElement(getMajorMimeType(test.type));
  element.src = test.name;
  element.receivedPlayingEvent = false;

  element.addEventListener("playing", () => {
    element.receivedPlayingEvent = true;
  });

  element.play().then(
    (result) => {
      if (result == undefined && element.receivedPlayingEvent) {
        ok(true, `${token} is resolved with ${result}.`);
      } else {
        ok(false, `${token} is resolved with ${result} and receivedPlayingEvent = ${element.receivedPlayingEvent}`);
      }
    },
    (error) => {
      ok(false, `${token} is rejected with ${error.name}.`);
    }
  ).then( () => { manager.finished(token); } );
}

manager.runTests(gSmallTests, initTest);

</script>