test_play_promise_15.html

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<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: loadAlgorithmRejectPromisesWhenPausing

// Case: step1: create an element with its paused member to be fause and networkState to be NETWORK_NO_SOURCE.

//       stpe2: invoke load() on the element and the load() rejects the pending promise.

// Expected result: reject the pending promise with AbortError DOM exception.

let manager = new MediaTestManager;

function initTest(test, token) {

  manager.started(token);

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

  // Invoke play() -> (1) the promise will be left pending.

  //                  (2) invoke load() -> (1) set the networkState to be NETWORK_NO_SOURCE.

  //                                       (2) queue a task to run resouce selection algorithm.

  element.play().then(

    (result) => {

      ok(false, `${token} is resolved with ${result}.`);

},

    (error) => {

      if (error.name == "AbortError") {

        ok(true, `${token} is rejected with ${error.name}.`);

      } else {

        ok(false, `${token} is rejected with ${error.name}.`);

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

  ok(element.networkState == HTMLMediaElement.NETWORK_NO_SOURCE);

  // Invoke load() again and since the networkState is NETWORK_NO_SOURCE, the load() rejects the pending promise.

  element.src = test.name;

  // Since the networkState is not NETWORK_EMPTY, the load() sets paused to be true.

  ok(element.paused, `loadAlgorithmRejectPromisesWhenPausing(${token}).paused should be true.`);

manager.runTests(gSmallTests, initTest);

</script>