anchor.diff:         <<"This\nis\nfile 2.\n">>}}] = psycho_multipart:form_data(All),
   
       io:format("OK~n").
  +
  +%% ===================================================================
  +%% multipart (filtering)
  +%% ===================================================================
   
   test_multipart_filtering() ->
       io:format("multipart_filtering: "),
  
positive.code: 
      io:format("OK~n").
  
  test_multipart_simplest() ->
      io:format("multipart_simplest: "),
  
  
negative.code:     error = D(E(Data2, Key2), Key1),
  
      io:format("OK~n").
  
  %% ===================================================================
  %% validate
  %% ===================================================================
  
  test_validate() ->
      io:format("validate: "),
  