    @Test
    public void testGetString2Duration() throws ParseException {

        // CHECKSTYLE:OFF
        GregorianCalendar c1 = new GregorianCalendar();
        GregorianCalendar c2 = new GregorianCalendar();
        c1.set(2009, GregorianCalendar.JANUARY, 10, 10, 23, 15);
        c2.set(2009, GregorianCalendar.JANUARY, 10, 0, 0, 0);

        Long l = c1.getTimeInMillis() - c2.getTimeInMillis();
        // CHECKSTYLE:ON
        String s = TiTATimeConverter.getDuration2String(l);
        assertEquals("10:23:15", s);
    }