Spring boot and Security Integration test with EntityManager - spring

Question

I want to test my spring application. It requires authentication, so I create an user object and persist it in #Before method. But i can not do authentication because, as i think, init() method is executed in another session.
IntegrationTest class:
#RunWith(SpringRunner.class)
#SpringBootTest(webEnvironment= SpringBootTest.WebEnvironment.RANDOM_PORT)
#Transactional
public class IntegrationTest {
#PersistenceContext
private EntityManager entityManager;
#Autowired
private PasswordEncoder passwordEncoder;
#LocalServerPort
int port;
private String URL;
#Before
public void init() {
User user = new User();
user.setUsername("testUser");
user.setPassword(passwordEncoder.encode("test"));
user.setEmail("test#test.com");
user.setEnabled(true);
entityManager.persist(user);
entityManager.flush();
entityManager.clear();
RestAssured.port = port;
URL = "http://localhost:" + String.valueOf(port) + "/users/user";
}
#Test
public void givenNotAuthenticatedUser_whenLoggingIn_thenCorrect() {
final RequestSpecification request = RestAssured.given().auth().basic("testUser", "test");
request.when().get(URL).then().assertThat().statusCode(200);
}
}
But if I use my userRepository and call
userRepository.save(user);
instead of
entityManager.persist(user);
entityManager.flush();
entityManager.clear();
everything works fine. I also have to remove #Transactional annotation.
Firstly I thought it was because, there was no commit - I saw that there is no changes in the user table. How to force EntityManager to commit data?
How to use EntityManager in test? And why UserRepository does work well?

Answer 1

As stated in the documentation:
By default, the framework will create and roll back a transaction for each test.
You can override it using #Commit on your test class and put TestTransaction.end() after entityManager.clear().
Now the test works ok but I still can not understand why and how UserRepository works without commiting the transaction.