ue.line, "auto");
        assert_equals(newCue.position, "auto");
        assert_equals(newCue.size, 100);
        assert_equals(newCue.align, "center");

        trackElement.track.removeCue(textCue);
        assert_equals(textCue.track, null);
        assert_equals(cues[1].startTime, 31);
        assert_equals(cues[2].startTime, 61);

        // Remove a cue added from the WebVTT file.
        textCue = cues[2];
        trackElement.track.removeCue(textCue);
        assert_equals(textCue.track, null);
   