@SpringBootTest()
@TestMethodOrder(value = MethodOrderer.OrderAnnotation.class)
@TestConstructor(autowireMode = TestConstructor.AutowireMode.ALL)
@RequiredArgsConstructor
public class CustomerControllerTest {
	private final EntityManagerFactory emf;
	private EntityManager em;
	private EntityTransaction tx;

	@javax.transaction.Transactional
	@Order(1)
	@Test
	public void customer_default_save_test() throws Exception {
		em = emf.createEntityManager();
		em.setProperty("cascade", CascadeType.DETACH);
		tx = em.getTransaction();
		et.begin();
		
		OnCustomer compareCustomer = new OnCustomer(0L, 1L, new AES256Util().encrypt("고객테스트"), "사원",
				"", "01", "01", "n", "20210316", "메모", 0L, new Date(), "jhjang", null, null, "y");
		em.persist(compareCustomer);
		OnCustomer re = em.find(OnCustomer.class, 1);
		assertNotNull(re);
		tx.rollback();
		em.close();
		emf.close();
        }
}

위처럼 테스트 케이스를 짰습니다. detached entity passed to persist 뜨네요.

그냥 jparepository 쓰면 정상 작동 되는데 EntityManager 책 보고 해보는데 안되네요.

뭐가 문제일까요