private List<LocatedFileStatus> getBackupFiles() throws IOException {
    FileSystem fs = TEST_UTIL.getTestFileSystem();
    RemoteIterator<LocatedFileStatus> iter = fs.listFiles(new Path(BACKUP_ROOT_DIR), true);
    List<LocatedFileStatus> files = new ArrayList<>();

    while (iter.hasNext()) {
      files.add(iter.next());
    }

    return files;
  }
Check that backup manifest can be produced for a different root. Users may want to move
existing backups to a different location.
hbase-backup/src/test/java/org/apache/hadoop/hbase/backup/TestIncrementalBackup.java