anchor.diff:      insert_and_find,
       insert_and_delete,
       search_and_query,
  -    update
  +    update,
  +    sort_and_limit
     ].
   
   init_per_suite(Config) ->
  
positive.code:     {'_id', _,
        name, <<"Mets">>,
        league, <<"National">>}] = Res2,
    Config.
  
  update(Config) ->
  
negative.code:   insert_and_find/1,
    insert_and_delete/1,
    search_and_query/1,
    update/1,
    sort_and_limit/1
  ]).
  
  all() ->
  