### Question:
PcapHelper { @VisibleForTesting public static TimeUnit getDataCreationTimeUnit() { String timeUnit = ConfigurationUtil.getConfiguration().getString( "hbase.table.data.time.unit"); LOGGER.debug("hbase.table.data.time.unit=" + timeUnit.toString()); if (StringUtils.isNotEmpty(timeUnit)) { return TimeUnit.valueOf(timeUnit); } return TimeUnit.UNKNOWN; }  static long convertToDataCreationTimeUnit(long inputTime); @VisibleForTesting static TimeUnit getDataCreationTimeUnit(); @VisibleForTesting static long convertSecondsToDataCreationTimeUnit(long inputTime); static String reverseKey(String key); static List<String> reverseKey(List<String> keys); static CellTimestampComparator getCellTimestampComparator();  }### Answer:
@Test public void test_getDataCreationTimeUnit() { TimeUnit dataCreationTimeUnit = PcapHelper.getDataCreationTimeUnit(); Assert.isTrue(TimeUnit.MILLIS == dataCreationTimeUnit); }