@Test
public void testToString() {

	Calendar calendar = Calendar.getInstance();
	calendar.set(Calendar.DATE, 12);
	calendar.set(Calendar.HOUR_OF_DAY, 15);
	calendar.set(Calendar.MILLISECOND, 871);
	calendar.set(Calendar.MINUTE, 1);
	calendar.set(Calendar.MONTH, 7);
	calendar.set(Calendar.SECOND, 58);
	calendar.set(Calendar.YEAR, 2019);
	String dateString = _dateParamConverter.toString(calendar.getTime());
	Assert.assertEquals("2019-08-12T15:01:58.871Z", dateString);
}