SDN 4.2 issue

MyTest.java

@RunWith(SpringJUnit4ClassRunner.class)
@ContextConfiguration(classes = {GalaxyContext.class, MyConfig.class})
@Transactional
public class MyTest {

    @Autowired
    WorldRepository worldRepository;

    @Test(expected = DataIntegrityViolationException.class)
    public void shouldTrowRollbackException() throws Exception {
        worldRepository.save(new World("Tatooine", 0));
        worldRepository.save(new World("Tatooine", 0));
    }

    @Configuration
    public static class MyConfig {

        @Bean
        public SessionFactory sessionFactory() {
            org.neo4j.ogm.config.Configuration configuration = new org.neo4j.ogm.config.Configuration();
            configuration.driverConfiguration().setDriverClassName(EmbeddedDriver.class.getCanonicalName());
            return new SessionFactory(configuration, "org.springframework.data.neo4j.examples.galaxy.domain");
        }

        @Bean
        public Neo4jOperations neo4jOperations() {
            Neo4jTemplate neo4jTemplate = new Neo4jTemplate(sessionFactory());
            Map<String, Object> map = Collections.emptyMap();
            neo4jTemplate.query("CREATE CONSTRAINT ON (w:World) ASSERT w.name IS UNIQUE", map);
            return neo4jTemplate;
        }
    }
}