try {
PkonlyMapper mapper = sqlSession.getMapper(PkonlyMapper.class);
PkonlyKey key = new PkonlyKey(1, 3);
mapper.insert(key);
PkonlyExample example = new PkonlyExample();
List<PkonlyKey> answer = mapper.selectByExample(example);
assertEquals(1, answer.size());
PkonlyKey returnedRecord = answer.get(0);
assertEquals(key.getId(), returnedRecord.getId());