How not to rollback #DataJpaTest? - spring-data

Question

In the following code
#DataJpaTest
#Transactional(propagation = Propagation.NOT_SUPPORTED)
#AutoConfigureTestDatabase(replace= AutoConfigureTestDatabase.Replace.NONE)
public class GenreDaoJpaTest{
#Autowired
private TestEntityManager entityManager;
#Autowired
private GenreRepository dao;
....
}
when I'm adding #Transactional(propagation = Propagation.NOT_SUPPORTED) with the purpose to cancel a roolback after each test I'm getting an exception:
ava.lang.IllegalStateException: No transactional EntityManager found
at org.springframework.util.Assert.state(Assert.java:73)
at org.springframework.boot.test.autoconfigure.orm.jpa.TestEntityManager.getEntityManager(TestEntityManager.java:237)
at org.springframework.boot.test.autoconfigure.orm.jpa.TestEntityManager.persist(TestEntityManager.java:92)
at ru.otus.ea.dao.GenreDaoJpaTest.init(GenreDaoJpaTest.java:38)
It there a way to autowire TestEntityManager and not to roolback transactions in tests?

Answer 1

Your TestEntityManager is autowired but you are executing the persist call outside of a transaction.
You can autowire TransactionTemplate:
#Autowired
private TransactionTemplate transactionTemplate;
And execute your DB interactions using its execute method:
User savedUser = transactionTemplate.execute((conn) -> {
return testEntityManager.persist(new User("foo"));
});
Also you should be aware that now you are responsible for cleanup of test DB after tests execute (which might be hard to maintain as logic grows):
#BeforeEach // just to be sure
#AfterEach
public void cleanup() {
userRepository.deleteAll();
}