anchor.diff:                    args = [?KEY, [{1.0 * I, edis_util:integer_to_binary(I)} || I <- lists:seq(1, 10000)]],
                     group = zsets, result_type = number}),
     ok;
  +init_per_round(Fun, Keys) when Fun =:= zrank->
  +  edis_db:run(
  +    edis_db:process(0),
  +    #edis_command{cmd = <<"ZADD">>,
  +                  args = [?KEY, [{edis_util:binary_to_float(Key), Key} || Key <- Keys]],
  +                  group = zsets, result_type = number}),
  +  ok;
   init_per_round(_Fun, _Keys) ->
     _ = edis_db:run(
           edis_db:process(0),
  
positive.code:   catch edis_db:run(
      edis_db:process(0),
      #edis_command{cmd = <<"ZRANGEBYSCORE">>, args = [?KEY, {exc, 0.0}, {inc, edis_util:binary_to_float(Key)}],
                    group = zsets, result_type = multi_bulk}).
negative.code:          quit/0, quit_per_testcase/1, quit_per_round/2]).
  -export([zadd/1, zadd_one/1, zcard/1, zcount_n/1, zcount_m/1, zincrby/1,
           zinterstore_min/1, zinterstore_n/1, zinterstore_k/1, zinterstore_m/1,
           zrange_n/1, zrange_m/1, zrangebyscore_n/1, zrangebyscore_m/1, zrank/1]).
  
  %% ====================================================================
  %% External functions
  