@Test
  public void testReversedMobStoreScanner() throws Exception {
    testGetFromFiles(true);
    testGetFromMemStore(true);
    testGetReferences(true);
    testMobThreshold(true);
    testGetFromArchive(true);
  }
Set the scan attribute
@param reversed   if true, scan will be backward order
@param mobScanRaw if true, scan will get the mob reference
hbase-server/src/test/java/org/apache/hadoop/hbase/mob/TestMobStoreScanner.java