 var expected = [
            {
                id : "1",
                startTime : 0,
                endTime : 30.5,
                text : "景気判断"
            },
            {
                id : "2",
                startTime : 31,
                endTime : 1200.5,
                text : "電力不足"
            }
        ];

        var cues = video.textTracks[0].cues;
        assert_equals(cues.length, 2);
        assert_cues_equal(cues, expected);
    }

    function testTrack1() {
      