Test suite: add test for the HASH type.
Test suite: add test for the HASH type.

johnhelmuth/predis,stokes3452/predis,RedisLabs/predis,RudyJessop/predis,dzung2t/predis,quangnguyen90/predis,moria/predis,zhangyancoder/predis,vend/predis,nrk/predis,channelgrabber/predis,CloudSide/predis,gopalindians/predis,SecureCloud-biz/predis,mrkeng/predis,nguyenthaihan/predis,oswaldderiemaecker/predis,WalterShe/predis,protomouse/predis,SwelenFrance/predis,dominics/predis,lvbaosong/predis,gencer/predis