dom/media/test/test_play_promise_15.html

   1 <!DOCTYPE HTML>
   2 <html>
   3 <head>
   4   <title>Media test: promise-based play() method</title>
   5   <script src="/tests/SimpleTest/SimpleTest.js"></script>
   6   <link rel="stylesheet" type="text/css" href="/tests/SimpleTest/test.css" />
   7   <script type="text/javascript" src="manifest.js"></script>
   8 </head>
   9 <body>
  10 <pre id="test">
  11
  12 <script>
  13 // Name: loadAlgorithmRejectPromisesWhenPausing
  14 // Case: step1: create an element with its paused member to be fause and networkState to be NETWORK_NO_SOURCE.
  15 //       stpe2: invoke load() on the element and the load() rejects the pending promise.
  16 // Expected result: reject the pending promise with AbortError DOM exception.
  17
  18 let manager = new MediaTestManager;
  19
  20 function initTest(test, token) {
  21   manager.started(token);
  22
  23   let element = document.createElement(getMajorMimeType(test.type));
  24   // Invoke play() -> (1) the promise will be left pending.
  25   //                  (2) invoke load() -> (1) set the networkState to be NETWORK_NO_SOURCE.
  26   //                                       (2) queue a task to run resouce selection algorithm.
  27   element.play().then(
  28     (result) => {
  29       ok(false, `${token} is resolved with ${result}.`);
  30     },
  31     (error) => {
  32       if (error.name == "AbortError") {
  33         ok(true, `${token} is rejected with ${error.name}.`);
  34       } else {
  35         ok(false, `${token} is rejected with ${error.name}.`);
  36       }
  37     }
  38   ).then( () => { manager.finished(token); } );
  39
  40   ok(element.networkState == HTMLMediaElement.NETWORK_NO_SOURCE);
  41
  42   // Invoke load() again and since the networkState is NETWORK_NO_SOURCE, the load() rejects the pending promise.
  43   element.src = test.name;
  44
  45   // Since the networkState is not NETWORK_EMPTY, the load() sets paused to be true.
  46   ok(element.paused, `loadAlgorithmRejectPromisesWhenPausing(${token}).paused should be true.`);
  47 }
  48
  49 manager.runTests(gSmallTests, initTest);
  50
  51 </script>