### Question:
CassandraRingServiceImpl implements CassandraRingService { @Override public void save(CassandraRing ring) { dao.save(ring); } @Inject  CassandraRingServiceImpl(CassandraRingDao dao); @Override ImmutableSet<CassandraRing> findAll(); @Override CassandraRing findByName(String name); @Override void save(CassandraRing ring); @Override void delete(CassandraRing ring);  }### Answer:
@Test public void save() { CassandraRing ring = createMock(CassandraRing.class); dao.save(ring); replayAll(); service.save(ring); }