test_play_promise_16.html

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<!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: loadAlgorithmResolveOrdering

// Case: invoke load() on an element should resolve pending promises in order.

// Expected result: the pending promises are resolved in order.

let manager = new MediaTestManager;

function initTest(test, token) {

  manager.started(token);

  let element = document.createElement(getMajorMimeType(test.type));

  element.preload = "auto";

  element.src = test.name;

  once(element, "canplay").then(() => {

    let firstPromiseResolved = false;

    // play

    element.play().then(

      () => { firstPromiseResolved = true; },

      () => { ok(false,  `loadAlgorithmResolveOrdering(${token}) should not be rejected.`); }

);

    // play again

    element.play().then(

      () => { ok(firstPromiseResolved, `loadAlgorithmResolveOrdering(${token}), the first play should already be resolved.`); },

      () => { ok(false,  `loadAlgorithmResolveOrdering(${token}) should not be rejected.`); }

    ).then( () => { manager.finished(token); } );

    // triger load

    element.src = test.name;

});

manager.runTests(gSmallTests, initTest);

</script>