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<!DOCTYPE HTML>
<html>
<head>
  <title>Media test: promise-based play() method</title>
  <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>
// Name: loadAlgorithmKeepPromisesPendingWhenNotPausing
// Case: step1: create an element with its paused member to be fause and networkState to be NETWORK_EMPTY.
//       stpe2: invoke load() on the element and the load() leaves the promise pending.
// Expected result: the pending promise should finally be resolved.

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

  once(element, "play").then(() => {
    // The resouce selection algorithm has been done.
    // -> set the networkState to be NETWORK_EMPTY because there is no valid resource to load.
    ok(element.networkState == HTMLMediaElement.NETWORK_EMPTY);

    // Invoke load() again and since the networkState is NETWORK_EMPTY, the load() does not reject the pending promise.
    // The load() will queue a task to run resouce selection algorithm which will change the readyState and finally resolve the pending promise.
    element.src = test.name;

    // Since the networkState is NETWORK_EMPTY, the load() does not set paused to be true.
    ok(!element.paused, `loadAlgorithmKeepPromisesPendingWhenNotPausing(${token}).paused should be false.`);
  });
}

manager.runTests(gSmallTests, initTest);

</script>