SpringBoot: Unit Test with Cassandra

I'd like to test my SpringBoot application that uses cassandra as a CrudRepository. I ended up with

/*
 * http://ift.tt/1UcRqfK
 */
@RunWith(SpringJUnit4ClassRunner.class)
@ComponentScan
@ContextConfiguration(value = { "classpath:/default-context.xml" })
@TestExecutionListeners({ CassandraUnitTestExecutionListener.class })
@CassandraDataSet(value = { "setupTables.cql" }, keyspace = "keyspaceToCreate")
@CassandraUnit
public class ApplicationTests {

    @Autowired
    MyCassandraRepository repo;

    @Test
    public void contextLoads() {

        System.out.println(repo.findAll());

    }

}

This leads to a NullPointerException because repo isn't injected. What am I doing wrong?

Sources http://ift.tt/2auIZeq