anchor.diff:  
   %% @private
   get_json_metadata_test_base(FileType, SetDirectJson, TestShareMode, Config) ->
  -    Providers = ?config(op_worker_nodes, Config),
       {FileLayer5Path, FileLayer5Guid, ShareId} = create_get_json_metadata_tests_env(
           FileType, SetDirectJson, TestShareMode, Config
       ),
  
positive.code: 
  all() ->
      ?ALL([
  %%        get_file_rdf_metadata_with_rdf_set_test,
  %%        get_dir_rdf_metadata_with_rdf_set_test,
  %%        get_file_rdf_metadata_without_rdf_set_test,
  %%        get_dir_rdf_metadata_without_rdf_set_test,
  %%        get_shared_file_rdf_metadata_with_rdf_set_test,
  %%        get_shared_dir_rdf_metadata_with_rdf_set_test,
  %%        get_file_rdf_metadata_on_provider_not_supporting_space_test,
  %%        get_dir_rdf_metadata_on_provider_not_supporting_space_test,
  
          get_file_json_metadata_with_json_set_test,
          get_dir_json_metadata_with_json_set_test,
          get_file_json_metadata_without_json_set_test,
          get_dir_json_metadata_without_json_set_test,
          get_shared_file_json_metadata_with_json_set_test,
          get_shared_dir_json_metadata_with_json_set_test,
          get_shared_file_json_metadata_without_json_set_test,
          get_shared_dir_json_metadata_without_json_set_test
  
  %%        get_json_metadata_test,
  %%        get_xattr_metadata_test,
  
negative.code: 
      GetExpCallResultFun = fun(_TestCtx) -> {ok, ?RDF_METADATA_1} end,
  
      get_metadata_test_base(
          <<"rdf">>,
          FileType, FilePath, FileGuid, undefined,
          create_validate_get_metadata_rest_call_fun(GetExpCallResultFun, P2),
          create_validate_get_metadata_gs_call_fun(GetExpCallResultFun, P2),
          Providers,
          ?CLIENT_SPEC_FOR_SPACE_1_SCENARIOS(Config),
          _DataSpec = undefined,
          _QsParams = [],
          Config
      ).
  
  
  %%%===================================================================
  