anchor.diff:  
   %% tests
   -export([
  +    atm_array_value_validation_test/1,
       atm_dataset_value_validation_test/1,
       atm_file_value_validation_test/1,
       atm_integer_value_validation_test/1,
  
positive.code: %%%===================================================================
  %%% API functions
  %%%===================================================================
  
  
  atm_dataset_value_validation_test(_Config) ->
  
negative.code: 
  groups() -> [
      {all_tests, [parallel], [
          atm_array_value_validation_test,
          atm_dataset_value_validation_test,
          atm_file_value_validation_test,
          atm_integer_value_validation_test,
  