anchor.diff:      os:cmd("rm -rf " ++ Path1),
       os:cmd("rm -rf " ++ Path2),
       application:stop(crypto),
  +    timer:sleep(200),
       ok.
   
   
  
positive.code:                                              total_num  = Total,
                                               active_num = Active}},
                           {SumTotal, SumActive, SumTotalSize, SumActiveSize}) ->
                                         ?assertEqual(true, Start =< End),
                                         {SumTotal + Total,
                                          SumActive + Active,
                                          SumTotalSize + TotalSize,
                                          SumActiveSize + ActiveSize}
                                 end, {0, 0, 0, 0}, Res2),
               ?assertEqual(7, SumTotal2),
               ?assertEqual(7, SumActive2),
               ?assertEqual(true, SumTotalSize2 =:= SumActiveSize2),
  
negative.code:     ?assertEqual(8, length(Res)),
  
      catch leo_object_storage_sup:stop(),
      application:stop(leo_backend_db),
      application:stop(bitcask),
      application:stop(leo_object_storage),
  