anchor.diff:      test_utils:mock_validate(Workers, communicator),
       test_utils:mock_unload(Workers, communicator),
       Config;
  +
  +end_per_testcase(event_stream_crash_test, Config) ->
  +    [Worker | _] = ?config(op_worker_nodes, Config),
  +    SessId = ?config(session_id, Config),
  +    session_teardown(Worker, SessId),
  +    test_utils:mock_validate(Worker, [communicator, logger]),
  +    test_utils:mock_unload(Worker, [communicator, logger]),
  +    proplists:delete(session_id, Config);
   
   end_per_testcase(event_manager_test, Config) ->
       [Worker | _] = ?config(op_worker_nodes, Config),
  
positive.code: 
      session_teardown(Worker1, SessId2),
      session_teardown(Worker2, SessId1),
  
      ok.
  
  
negative.code: %% tests
  -export([
      event_stream_test/1,
      event_stream_crash_test/1,
      event_manager_test/1
  ]).
  
  all() -> [
      event_stream_test,
      event_stream_crash_test,
      event_manager_test
  ].
  
  