@Test
public void testGetLongStatistics() {

  Iterator<LongStatistic> iter = storageStatistics.getLongStatistics();
  while (iter.hasNext()) {
    final LongStatistic longStat = iter.next();
    assertNotNull(longStat);
    final long expectedStat = getStatisticsValue(longStat.getName());
    LOG.info("{}: FileSystem.Statistics={}, FileSystemStorageStatistics={}",
        longStat.getName(), expectedStat, longStat.getValue());
    assertEquals(expectedStat, longStat.getValue());
  }
}