Spring Security, JUnit: @WithUserDetails for user created in @Before

Question

In JUnit tests with Spring MockMVC, there are two methods for authenticating as a Spring Security user: @WithMockUser creates a dummy user with the provided credent

Answer 1

@Inject
private EntityManager em;

@Inject
PlatformTransactionManager txManager;

@BeforeTransaction
public void setup() {
    new TransactionTemplate(txManager).execute(status -> {

        User u = new User();
        u.setEMail("test@test.de");
        em.save(u);

        return null;
    });
}

@AfterTransaction
public void cleanup() {
    new TransactionTemplate(txManager).execute(status -> {
        // Check if the entity is managed by EntityManager.
        // If not, make it managed with merge() and remove it.
        em.remove(em.contains(u) ? user1 : em.merge(u));
        return null;
    });
}


@Test
@Transactional
@WithUserDetails(value = "test@test.de", userDetailsServiceBeanName = "loadUserByUsername")
public void test() {

}