### Question:
DateTimeUtil { public static Period period(String period) { return periodFormatter.parsePeriod(period); }  static Date convertToUTC(Date date); static DateTime convertToUTC(DateTime date); static DateTime convertToUTC(Long time); static Date getUTCTime(); static DateTime getNowUTCTime(); static String getNowFormattedWithTimeZone(); static String formatPeriod(Period period); static Period period(String period); static final DateTimeFormatter utcDateTimeFormat; static final DateTimeFormatter dateTimeFormatWithTimeZone; }### Answer:
@Test public void testPeriodParser() { Period p = DateTimeUtil.period("3W"); Assert.assertNotNull(p); }