anchor.diff:  
   -spec all() -> [atom()].
   all() -> [Fun || {Fun, _} <- ?MODULE:module_info(exports) -- edis_bench:behaviour_info(callbacks),
  -                 Fun =/= module_info].
  +                 Fun =/= module_info, Fun =/= module_info, Fun =/= bench_all, Fun =/= bench].
   
   -spec init([pos_integer()]) -> ok.
   init([Port]) ->
  
positive.code: %% ====================================================================
  %% External functions
  %% ====================================================================
  -spec bench(atom()) -> ok.
  bench(Function) -> bench(Function, []).
  
  
negative.code: -include("edis.hrl").
  -include("edis_bench.hrl").
  
  -export([bench/1, bench/2, bench/4, bench_all/0, bench_all/1, bench_all/3]).
  -export([all/0,
           init/1, init_per_testcase/2, init_per_round/3,
           quit/1, quit_per_testcase/2, quit_per_round/3]).
  