make node model test coverage 100%
make node model test coverage 100%

Ricardo666666/june,Denniskevin/june,w15971597/june,w15971597/june,yuewolf/june,Denniskevin/june,xingkaixin/june,beni55/june,yuewolf/june,xingkaixin/june,yuewolf/june,pythoncn/june,fanne/june,Denniskevin/june,xingkaixin/june,Ricardo666666/june,w15971597/june,Ricardo666666/june,fanne/june,beni55/june,jubel-han/june,pythoncn/june,jubel-han/june,fanne/june,beni55/june,jubel-han/june