   @Test(expectedExceptions = UnsupportedOperationException.class)
   public void testGetFails() throws Exception {

      BasicOperations.Cache cache = new CacheTraitRepository.BasicOperationsCache<>();
      PrivateLogLogic logic = createLogic(new GeneralConfiguration(), new BackgroundStressorLogicConfiguration(), new LogLogicConfiguration(), cache);

      // operationId 0, GET
      doReturn(BasicOperations.GET).when(logic).getOperation(any(Random.class));
      logic.invokeLogic(0);
   }