DateUtil { public static Instant epochSecondToInstant(long metricTimestamp) { return Instant.ofEpochSecond(metricTimestamp); }  static Instant truncatedToDay(Instant date); static Instant truncatedToWeek(Instant date); static Instant snapToSeconds(Instant date, int seconds); static Instant truncatedToSeconds(Instant date); static String epochSecondToString(long metricTimestamp); static Instant epochSecondToInstant(long metricTimestamp); static boolean isBetweenHours(int hour, int startHour, int endHour); static boolean crossesMidnight(int startHour, int endHour); static ZonedDateTime instantToUTCDateTime(Instant epochSecond); static final int MIDNIGHT_HOUR; }
@Test public void testEpochSecondToInstant() { assertEquals(Instant.ofEpochSecond(INSTANT_IN_EPOCH_SECONDS), DateUtil.epochSecondToInstant(INSTANT_IN_EPOCH_SECONDS)); }