<!DOCTYPE html>
<html>

    <title>BCP Language</title>
    <script src=../media-file.js></script>
    <script src=../video-test.js></script>

    <script>
        var test = 0;
        if (window.testRunner)
            testRunner.dumpAsText();

        window.addEventListener('load', function() {
            findMediaElement();

            testExpected("internals.textTrackBCP47Language(track1.track)", "zh");
            testExpected("track1.track.language", "zh");

            track1.setAttribute("srclang", "zh-Hant");
            testExpected("internals.textTrackBCP47Language(track1.track)", "zh-Hant");
            testExpected("track1.track.language", "zh-Hant");

            // Set to invalid code (country code must be <= 3)
            track1.setAttribute("srclang", "zhHant");
            testExpected("internals.textTrackBCP47Language(track1.track)", "");
            testExpected("track1.track.language", "zhHant");

            track1.setAttribute("srclang", "zh-cmn-Hans-CN");
            testExpected("internals.textTrackBCP47Language(track1.track)", "zh-cmn-Hans-CN");
            testExpected("track1.track.language", "zh-cmn-Hans-CN");

            // <track> srclang attribute is invalid (invalid first character)
            testExpected("internals.textTrackBCP47Language(track2.track)", "");
            testExpected("track2.track.language", "-sl");

            track2.setAttribute("srclang", "sl-rozaj-biske");
            testExpected("internals.textTrackBCP47Language(track2.track)", "sl-rozaj-biske");
            testExpected("track2.track.language", "sl-rozaj-biske");

            endTest();
        });

    </script>

    <body>
        <p>Test that TextTrackBase.validBCP47Language is set and reset correctly.</p>
        <video width="500" height="300" controls>
            <track id="track1" kind="captions" srclang="zh" label="" />
            <track id="track2" kind="captions" srclang="-sl" />
        </video>
    </body>
</html>