private int countArchiveMobFiles(TableName tn, String familyName) throws IOException {
    FileSystem fs = TEST_UTIL.getTestFileSystem();
    Path storePath = HFileArchiveUtil.getStoreArchivePath(TEST_UTIL.getConfiguration(), tn,
      MobUtils.getMobRegionInfo(tn).getEncodedName(), familyName);
    if (fs.exists(storePath)) {
      return fs.listStatus(storePath).length;
    }
    return 0;
  }
Generate the mob value. the size of the value
@return the mob value generated
hbase-server/src/test/java/org/apache/hadoop/hbase/regionserver/TestDeleteMobTable.java