@Test
  public void getByUsernameNoneFound() {

    try (DbContext dbContext = contextProvider.getDbContext()) {

      PersonDAO personDAO = dbContext.getPersonDAO();

      Person p = personDAO.getByUsername("gnurmifgjp�sh l hlfdyghlfd glkdfghv y");

      assertEquals(p, null);

    } catch (Exception e) {
      e.printStackTrace();
      fail("Exception " + e.getMessage());
    }
  }
  @Test
  public void getByUsernameXaseMismatch() {

    try (DbContext dbContext = contextProvider.getDbContext()) {

      PersonDAO personDAO = dbContext.getPersonDAO();

      Person p = personDAO.getByUsername("Pse_system");

      assertNull(p);

    } catch (Exception e) {
      e.printStackTrace();
      fail("Exception " + e.getMessage());
    }
  }