try {
            EntityManagerFactory emf = Persistence.createEntityManagerFactory("Certif_Resid_DAO");
            ProfessionJpaController controller = new ProfessionJpaController(emf);
            Profession profession = new Profession("titi"); // "titi" :name of profession with name is unique
            
            controller.create(profession); //insert into entitymanager
            controller.create(profession); // here insert will be throw an exception before commit to database
            
            assertTrue(true);

        } catch (Exception e) {
            fail(e.getMessage());
        }