### Question:
DateUtils { public static String formatDateTimestamp(Date date) { return DATE_TIME_FORMATTER.format(toLocalDate(date)); }  static List<Date> getHolidays(int year); static boolean isHoliday(Date date); static Date getNormalizedToday(); static boolean isHoliday(Calendar cal); static boolean isWeekend(Calendar cal); static Date normalizeDate(Date date); static String formatDate(Date date); static String formatDateTimestamp(Date date); static String formatCurrentTime(); static Date getDate(int year, int month, int day); static int getDaysBetween(Date date1, Date date2); static int getBusinessDaysBetween(Date date1, Date date2); static String formatDuration(long millis); static final long MS_PER_SEC; static final long MS_PER_MIN; static final long MS_PER_HOUR; static final long MS_PER_DAY; }### Answer:
@Test public void testFormatDateTime() { assertEquals(testDateString, DateUtils.formatDateTimestamp(testDate)); }