PkfieldsblobsWithBLOBs record = new PkfieldsblobsWithBLOBs(3, 4, "Jeff", "Smith", generateRandomBlob());
mapper.insert(record);
Pkfieldsblobs updateRecord = new Pkfieldsblobs(3, 4, "Scott", "Jones");
int rows = mapper.updateByPrimaryKey(updateRecord);
assertEquals(1, rows);
PkfieldsblobsKey key = new PkfieldsblobsKey(3, 4);
PkfieldsblobsWithBLOBs newRecord = mapper.selectByPrimaryKey(key);
assertEquals(updateRecord.getFirstname(), newRecord.getFirstname());