anchor.diff:  
   %% tests
   -export([
  +    method_should_return_forbidden_error_test/1,
       local_user_should_get_forbidden_error_test/1,
       get_should_return_clusters_list_test/1,
       get_should_return_cluster_details_test/1,
       get_should_return_current_cluster_details_test/1,
       current_cluster_should_work_for_local_user_test/1,
  +    get_should_return_current_cluster_members_count_test/1,
       get_should_return_provider_info_test/1
   ]).
   
   all() ->
       ?ALL([
  +        method_should_return_forbidden_error_test,
           local_user_should_get_forbidden_error_test,
           get_should_return_clusters_list_test,
           get_should_return_cluster_details_test,
           get_should_return_current_cluster_details_test,
           current_cluster_should_work_for_local_user_test,
  +        get_should_return_current_cluster_members_count_test,
           get_should_return_provider_info_test
       ]).
   
  
positive.code:     end).
  
  
  get_should_return_provider_info_test(Config) ->
      ?eachHost(Config, fun(Host) ->
          {_, _, _, JsonBody} = ?assertMatch({ok, 200, _, _},
              onepanel_test_rest:auth_request(
  
negative.code: 
      test_utils:mock_expect(OpNodes, service_oneprovider, get_auth_token,
          fun() -> <<"providerMacaroon">> end),
      test_utils:mock_expect(OpNodes, service_oneprovider, get_id,
          fun() -> <<?PROVIDER_ID>> end),
  
      onepanel_test_rest:set_up_default_users(Config),
      onepanel_test_rest:mock_token_authentication(Config),
  
      test_utils:mock_expect(OzNodes, service_oz_worker, get_details,
          fun() -> #{name => undefined, domain => OzDomain} end),
  
      test_utils:mock_expect(OzNodes, rpc, call, fun
          (_Node, user_logic, get_clusters, [_Client]) ->
              {ok, maps:keys(?CLUSTERS)};
          (_Node, cluster_logic, get_protected_data, [_Client, ClusterId]) ->
              {ok, maps:get(ClusterId, ?CLUSTERS)};
  
          (_Node, cluster_logic, get_users, [_Client, _ClusterId]) ->
              {ok, [<<"userId1">>]};
          (_Node, cluster_logic, get_eff_users, [_Client, _ClusterId]) ->
              {ok, [<<"userId1">>, <<"userId2">>]};
          (_Node, cluster_logic, get_groups, [_Client, _ClusterId]) ->
              {ok, [<<"groupId1">>, <<"groupId2">>, <<"groupId3">>]};
          (_Node, cluster_logic, get_eff_groups, [_Client, _ClusterId]) ->
              {ok, [<<"groupId1">>, <<"groupId2">>, <<"groupId3">>, <<"groupId4">>]};
  
          (_Node, provider_logic, get_protected_data, [_Client, ProviderId]) ->
              ?assertEqual(<<?PROVIDER_ID>>, ProviderId),
              {ok, ?PROVIDER_DETAILS_RPC};
  