@Test
public void testToUtcDate() {

    val format = new SimpleDateFormat(dateFormat);
    format.setTimeZone(TimeZone.getTimeZone("UTC"));
    Date actual = DateUtil.toUtcDate(instString);
    try {
        val expected = format.parse("2016-11-07 21:51:40");
        assertEquals(actual, expected);
    } catch (ParseException e) {
        e.printStackTrace();
    }
}