allocCluster: unify test function in all vs only case
allocCluster: unify test function in all vs only case

Zirpon/tchannel,sasa233/tchannel,sasa233/tchannel,i/tchannel,i/tchannel,chenwenbin928/tchannel,Zirpon/tchannel,RyanTech/tchannel,bunnyblue/tchannel,bunnyblue/tchannel,RyanTech/tchannel,vanloswang/tchannel,hustxiaoc/tchannel,hustxiaoc/tchannel,bunnyblue/tchannel,hustxiaoc/tchannel,RyanTech/tchannel,savaki/tchannel,savaki/tchannel,sasa233/tchannel,vanloswang/tchannel,vanloswang/tchannel,chenwenbin928/tchannel,i/tchannel,Zirpon/tchannel,chenwenbin928/tchannel,savaki/tchannel