anchor.diff:                                      multi_suite,
                                       all_suite,
                                       single_dir_and_single_suite,
  -                                    symlinked_dir_overwritten_fix]}].
  +                                    symlinked_dir_overwritten_fix]},
  +             {data_dirs, [], [data_dir_correct]}].
   
   init_per_group(basic_app, Config) ->
       C = rebar_test_utils:init_rebar_state(Config, "ct_"),
  
positive.code:     ok = filelib:ensure_dir(Suite3),
      ok = file:write_file(Suite3, test_suite("extras")),
  
      [{appnames, [Name1, Name2]}|C].
  
  end_per_group(_Group, _Config) -> ok.
  
  
negative.code: 
      {ok, _} = rebar_test_utils:run_and_check(Config, [], ["as", "test", "compile"], return).
  
  data_dir_correct(Config) ->
      DataDir = ?config(data_dir, Config),
      Parts = filename:split(DataDir),
      ["rebar_ct_SUITE_data","test","rebar","lib","test","_build"|_] = lists:reverse(Parts).
  
  
  %% helper for generating test data
  test_suite(Name) ->
      io_lib:format("-module(~ts_SUITE).\n"
                    "-compile(export_all).\n"
  