anchor.diff:  	riakacl:remove_subject_groups(Pid, SubBucket, SubKey, [Group]),
   	true.
   
  +%% The subject gets access to the object, if they both are members of the same group.
  +%% If more then one group is matched, access rules are merged providing
  +%% maximum possible access of all matched groups.
   permission_2group_merge(Config) ->
   	SubBucket = ?config(subject_bucket, Config),
   	ObjBucket = ?config(object_bucket, Config),
  
positive.code: 	riakacl:remove_object_acl(Pid, ObjBucket, ObjKey, [GroupWriter]),
  	true.
  
  permission_1group(Config) ->
  	SubBucket = ?config(subject_bucket, Config),
  	ObjBucket = ?config(object_bucket, Config),
  
negative.code: 	riakacl:remove_subject_groups(Pid, SubBucket, SubKey, [Group]),
  	true.
  
  %% The subject gets access to the object, if any of subjects's group
  %% isn't matched to the predefined object's group.
  %% But the subject and the object are both members of the same group.
  predefined_object_1group_then_object(Config) ->
  	SubBucket = ?config(subject_bucket, Config),
  	ObjBucket = ?config(object_bucket, Config),
  