webvtt/api/VTTCue/align.html

<!doctype html>
<title>VTTCue.align</title>
<link rel="help" href="https://w3c.github.io/webvtt/#dom-vttcue-align">
<script src=/resources/testharness.js></script>
<script src=/resources/testharnessreport.js></script>
<script src=common.js></script>
<div id=log></div>
<script>
test(function(){
    var video = document.createElement('video');
    document.body.appendChild(video);

    var cue = new VTTCue(0, 1, 'text');
    assert_true('align' in cue, 'align is not supported');
    assert_equals(cue.align, 'center');

    var track = document.createElement('track');
    var t = track.track;
    t.addCue(cue);

    assert_equals(cue.align, 'center');

    video.appendChild(track);
    assert_equals(cue.align, 'center');

    t.mode = 'showing';
    assert_equals(cue.align, 'center');

    cue.align = 'start';
    assert_equals(cue.align, 'start');

    cue.align = 'end';
    assert_equals(cue.align, 'end');

    ['start\u0000', 'centre', 'middle'].forEach(function(invalid) {
        cue.align = invalid;
        assert_equals(cue.align, 'end');
    });
}, document.title+', script-created cue');

var t_parsed = async_test(document.title+', parsed cue');
t_parsed.step(function(){
    var video = document.createElement('video');
    document.body.appendChild(video);
    var t = document.createElement('track');
    t.onload = this.step_func(function(){
        var c1 = t.track.cues[0];
        var c2 = t.track.cues[1];
        var c3 = t.track.cues[2];
        var c4 = t.track.cues[3];
        assert_equals(c1.align, 'center');
        assert_equals(c2.align, 'start');
        assert_equals(c3.align, 'center');
        assert_equals(c4.align, 'end');
        this.done();
    });
    t.onerror = this.step_func(function() {
      assert_unreached('got error event');
    });
    t.src = make_vtt_track('WEBVTT\n\n00:00:00.000 --> 00:00:00.001\ntest\n\n'+
                           '00:00:00.000 --> 00:00:00.001 align:start\ntest\n\n'+
                           '00:00:00.000 --> 00:00:00.001 align:center\ntest\n\n'+
                           '00:00:00.000 --> 00:00:00.001 align:end\ntest', this);
    t.track.mode = 'showing';
    video.appendChild(t);
});
</script>