media/media-controller.html

<!DOCTYPE html>
<html>
    <head>
        <script src=media-file.js></script>
        <script src=video-test.js></script>

        <script>
        var controller;
        var video2;

        function start() {
            video = document.getElementsByTagName('video')[0];
            video2 = document.getElementsByTagName('video')[1];

            consoleWrite("Test presence of MediaController constructor, controller, and mediaGroup attributes:");
            testExpected("typeof(MediaController)", "undefined", "!=");
            testExpected("video.controller", null);
            testExpected("video.mediaGroup", "");
            consoleWrite("");
            consoleWrite("Test that the presence of a mediaGroup attribute creates a controller:")
            testExpected("video2.mediaGroup", 'group');
            testExpected("video2.controller", null, "!=");
            consoleWrite("");
            consoleWrite("Test that setting mediaGroup to an empty string removes the controller:")
            run("video.mediaGroup = ''");
            testExpected("video.controller", null);
            consoleWrite("");
            consoleWrite("Test manually creating and assigning a controller to a media element:")
            run("controller = new MediaController()");
            run("video.controller = controller");
            testExpected("video.controller", controller);
            consoleWrite("");
            consoleWrite("Test that two media elements with the same mediaGroup have the same controller:")
            run("video.mediaGroup = 'group'");
            run("video2.mediaGroup = 'group'");
            testExpected("video.controller === video2.controller", true);
            endTest();
        }
        </script>
    </head>
    <body onload="start()">
        <video></video>
        <video mediagroup="group"></video>
    </body>
</html>