Person person = (Person) sqlSession.selectOne("person namespace.select", 1);
assertEquals((Integer)1, person.getId());
assertEquals(2, person.getPets().size());
assertEquals((Integer)2, person.getPets().get(1).getId());
Pet pet = (Pet) sqlSession.selectOne("person namespace.selectPet", 1);
assertEquals(Integer.valueOf(1), pet.getId());
Pet pet2 = (Pet) sqlSession.selectOne("pet namespace.select", 3);
assertEquals((Integer)3, pet2.getId());
assertEquals((Integer)2, pet2.getOwner().getId());