add unit test cases
add unit test cases

GulajavaMinistudio/kubernetes,openshift/kubernetes,jessfraz/kubernetes,xychu/kubernetes,aledbf/kubernetes,micahhausler/kubernetes,PiotrProkop/kubernetes,kevin-wangzefeng/kubernetes,x13n/kubernetes,mengqiy/kubernetes,ii/kubernetes,cofyc/kubernetes,jdef/kubernetes,k82cn/kubernetes,olivierlemasle/kubernetes,tpepper/kubernetes,xlgao-zju/kubernetes,sdminonne/kubernetes,aledbf/kubernetes,fanzhangio/kubernetes,chestack/kubernetes,GulajavaMinistudio/kubernetes,mengqiy/kubernetes,matthyx/kubernetes,deads2k/kubernetes,jingxu97/kubernetes,mfojtik/kubernetes,mikedanese/kubernetes,jsafrane/kubernetes,mahak/kubernetes,pires/kubernetes,nak3/kubernetes,MikeSpreitzer/kubernetes,deads2k/kubernetes,cofyc/kubernetes,x13n/kubernetes,mkumatag/kubernetes,ingvagabund/kubernetes,deads2k/kubernetes,enj/kubernetes,rrati/kubernetes,li-ang/kubernetes,gnufied/kubernetes,carlory/kubernetes,idvoretskyi/kubernetes,matthyx/kubernetes,Acidburn0zzz/kubernetes,brendandburns/kubernetes,joelsmith/kubernetes,fabriziopandini/kubernetes,dlorenc/kubernetes,shyamjvs/kubernetes,tpepper/kubernetes,cmluciano/kubernetes,gnufied/kubernetes,jdef/kubernetes,cofyc/kubernetes,zhouhaibing089/kubernetes,roberthbailey/kubernetes,nak3/kubernetes,tengqm/kubernetes,olivierlemasle/kubernetes,lojies/kubernetes,monopole/kubernetes,verult/kubernetes,thockin/kubernetes,krmayankk/kubernetes,olivierlemasle/kubernetes,tengqm/kubernetes,carlory/kubernetes,mfojtik/kubernetes,Acidburn0zzz/kubernetes,mahak/kubernetes,MikeSpreitzer/kubernetes,kevin-wangzefeng/kubernetes,verb/kubernetes,mahak/kubernetes,carlory/kubernetes,liggitt/kubernetes,ingvagabund/kubernetes,nckturner/kubernetes,rnaveiras/kubernetes,rnaveiras/kubernetes,k82/kubernetes,enj/kubernetes,rnaveiras/kubernetes,micahhausler/kubernetes,mfojtik/kubernetes,enj/kubernetes,roberthbailey/kubernetes,roberthbailey/kubernetes,rrati/kubernetes,iterion/kubernetes,jagosan/kubernetes,ingvagabund/kubernetes,mosoft521/kubernetes,carlory/kubernetes,ping035627/kubernetes,hex108/kubernetes,gnufied/kubernetes,krmayankk/kubernetes,lojies/kubernetes,k82cn/kubernetes,humblec/kubernetes,k82cn/kubernetes,kpgriffith/kubernetes,dixudx/kubernetes,chrislovecnm/kubernetes,joelsmith/kubernetes,andrewrynhard/kubernetes,alejandroEsc/kubernetes,weiwei04/kubernetes,iameli/kubernetes,xychu/kubernetes,alejandroEsc/kubernetes,li-ang/kubernetes,linux-on-ibm-z/kubernetes,ingvagabund/kubernetes,saad-ali/kubernetes,saad-ali/kubernetes,sdminonne/kubernetes,dixudx/kubernetes,Acidburn0zzz/kubernetes,soltysh/kubernetes,mosoft521/kubernetes,verult/kubernetes,soltysh/kubernetes,chrislovecnm/kubernetes,Clarifai/kubernetes,sanjeevm0/kubernetes,deads2k/kubernetes,mfojtik/kubernetes,zhangmingld/kubernetes,idvoretskyi/kubernetes,weiwei04/kubernetes,li-ang/kubernetes,BenTheElder/kubernetes,k82/kubernetes,ping035627/kubernetes,coolsvap/kubernetes,dlorenc/kubernetes,jsafrane/kubernetes,bparees/kubernetes,dlorenc/kubernetes,liggitt/kubernetes,pires/kubernetes,linux-on-ibm-z/kubernetes,openshift/kubernetes,sdminonne/kubernetes,soltysh/kubernetes,warmchang/kubernetes,mYmNeo/kubernetes,jingxu97/kubernetes,GulajavaMinistudio/kubernetes,dlorenc/kubernetes,jagosan/kubernetes,kpgriffith/kubernetes,hex108/kubernetes,sanjeevm0/kubernetes,micahhausler/kubernetes,idvoretskyi/kubernetes,cmluciano/kubernetes,ravilr/kubernetes,feiskyer/kubernetes,BenTheElder/kubernetes,Clarifai/kubernetes,liggitt/kubernetes,jdef/kubernetes,csrwng/kubernetes,andrewrynhard/kubernetes,mengqiy/kubernetes,BenTheElder/kubernetes,zhangmingld/kubernetes,rafax/kubernetes,dixudx/kubernetes,micahhausler/kubernetes,warmchang/kubernetes,monopole/kubernetes,brendandburns/kubernetes,PiotrProkop/kubernetes,rrati/kubernetes,dereknex/kubernetes,jingxu97/kubernetes,yujuhong/kubernetes,PiotrProkop/kubernetes,zhangmingld/kubernetes,bparees/kubernetes,nak3/kubernetes,csrwng/kubernetes,kitt1987/kubernetes,mengqiy/kubernetes,mYmNeo/kubernetes,krmayankk/kubernetes,stevesloka/kubernetes,verb/kubernetes,cblecker/kubernetes,mYmNeo/kubernetes,mikedanese/kubernetes,iterion/kubernetes,shyamjvs/kubernetes,aledbf/kubernetes,PiotrProkop/kubernetes,linux-on-ibm-z/kubernetes,stevesloka/kubernetes,yujuhong/kubernetes,joelsmith/kubernetes,alejandroEsc/kubernetes,coolsvap/kubernetes,nikhita/kubernetes,tengqm/kubernetes,shyamjvs/kubernetes,pires/kubernetes,iameli/kubernetes,ii/kubernetes,deads2k/kubernetes,dlorenc/kubernetes,PI-Victor/kubernetes,chestack/kubernetes,ii/kubernetes,mikebrow/kubernetes,chestack/kubernetes,k82cn/kubernetes,fanzhangio/kubernetes,brendandburns/kubernetes,xychu/kubernetes,mkumatag/kubernetes,jsafrane/kubernetes,iterion/kubernetes,brendandburns/kubernetes,mikebrow/kubernetes,joelsmith/kubernetes,wongma7/kubernetes,x13n/kubernetes,zhouhaibing089/kubernetes,ravilr/kubernetes,Clarifai/kubernetes,zhouhaibing089/kubernetes,cofyc/kubernetes,spzala/kubernetes,GulajavaMinistudio/kubernetes,shyamjvs/kubernetes,coolsvap/kubernetes,Acidburn0zzz/kubernetes,rnaveiras/kubernetes,spzala/kubernetes,liggitt/kubernetes,micahhausler/kubernetes,humblec/kubernetes,monopole/kubernetes,roberthbailey/kubernetes,sdminonne/kubernetes,cmluciano/kubernetes,jessfraz/kubernetes,matthyx/kubernetes,iterion/kubernetes,tpepper/kubernetes,cmluciano/kubernetes,wongma7/kubernetes,thockin/kubernetes,kevin-wangzefeng/kubernetes,nckturner/kubernetes,soltysh/kubernetes,thockin/kubernetes,mkumatag/kubernetes,jessfraz/kubernetes,pires/kubernetes,lojies/kubernetes,mkumatag/kubernetes,Clarifai/kubernetes,Acidburn0zzz/kubernetes,rafax/kubernetes,rafax/kubernetes,kitt1987/kubernetes,saad-ali/kubernetes,xlgao-zju/kubernetes,bparees/kubernetes,warmchang/kubernetes,humblec/kubernetes,chrislovecnm/kubernetes,GulajavaMinistudio/kubernetes,krmayankk/kubernetes,verb/kubernetes,ingvagabund/kubernetes,feiskyer/kubernetes,aledbf/kubernetes,spzala/kubernetes,krmayankk/kubernetes,mikedanese/kubernetes,sdminonne/kubernetes,kubernetes/kubernetes,jessfraz/kubernetes,tpepper/kubernetes,fanzhangio/kubernetes,mikedanese/kubernetes,chrislovecnm/kubernetes,linux-on-ibm-z/kubernetes,dims/kubernetes,iterion/kubernetes,yujuhong/kubernetes,kpgriffith/kubernetes,csrwng/kubernetes,jagosan/kubernetes,k82/kubernetes,dims/kubernetes,mYmNeo/kubernetes,mfojtik/kubernetes,warmchang/kubernetes,cblecker/kubernetes,thockin/kubernetes,wongma7/kubernetes,zhangmingld/kubernetes,nikhita/kubernetes,zhangmingld/kubernetes,jackfrancis/kubernetes,kpgriffith/kubernetes,ping035627/kubernetes,nckturner/kubernetes,verult/kubernetes,yujuhong/kubernetes,mosoft521/kubernetes,Clarifai/kubernetes,jdef/kubernetes,jdef/kubernetes,stevesloka/kubernetes,kpgriffith/kubernetes,dlorenc/kubernetes,alejandroEsc/kubernetes,verult/kubernetes,kitt1987/kubernetes,x13n/kubernetes,verb/kubernetes,gnufied/kubernetes,dims/kubernetes,dims/kubernetes,weiwei04/kubernetes,saad-ali/kubernetes,idvoretskyi/kubernetes,PI-Victor/kubernetes,jackfrancis/kubernetes,andrewrynhard/kubernetes,humblec/kubernetes,PI-Victor/kubernetes,chrislovecnm/kubernetes,enj/kubernetes,k82/kubernetes,rnaveiras/kubernetes,bparees/kubernetes,verb/kubernetes,dixudx/kubernetes,mosoft521/kubernetes,bparees/kubernetes,fabriziopandini/kubernetes,andrewrynhard/kubernetes,carlory/kubernetes,alejandroEsc/kubernetes,yujuhong/kubernetes,aledbf/kubernetes,gnufied/kubernetes,hex108/kubernetes,tpepper/kubernetes,mfojtik/kubernetes,saad-ali/kubernetes,xychu/kubernetes,MikeSpreitzer/kubernetes,coolsvap/kubernetes,jackfrancis/kubernetes,kitt1987/kubernetes,fabriziopandini/kubernetes,mYmNeo/kubernetes,krmayankk/kubernetes,cblecker/kubernetes,jsafrane/kubernetes,nak3/kubernetes,ii/kubernetes,stevesloka/kubernetes,cmluciano/kubernetes,ping035627/kubernetes,idvoretskyi/kubernetes,li-ang/kubernetes,feiskyer/kubernetes,jingxu97/kubernetes,saad-ali/kubernetes,chestack/kubernetes,mikedanese/kubernetes,brendandburns/kubernetes,liggitt/kubernetes,csrwng/kubernetes,tengqm/kubernetes,tengqm/kubernetes,zhouhaibing089/kubernetes,iterion/kubernetes,zhangmingld/kubernetes,zhouhaibing089/kubernetes,rrati/kubernetes,verult/kubernetes,yujuhong/kubernetes,kubernetes/kubernetes,hex108/kubernetes,thockin/kubernetes,iameli/kubernetes,k82cn/kubernetes,cofyc/kubernetes,cblecker/kubernetes,jagosan/kubernetes,openshift/kubernetes,ingvagabund/kubernetes,linux-on-ibm-z/kubernetes,olivierlemasle/kubernetes,xlgao-zju/kubernetes,joelsmith/kubernetes,jessfraz/kubernetes,kubernetes/kubernetes,fanzhangio/kubernetes,monopole/kubernetes,mikebrow/kubernetes,iameli/kubernetes,shyamjvs/kubernetes,hex108/kubernetes,enj/kubernetes,dereknex/kubernetes,chestack/kubernetes,fabriziopandini/kubernetes,PI-Victor/kubernetes,nikhita/kubernetes,cblecker/kubernetes,matthyx/kubernetes,roberthbailey/kubernetes,dims/kubernetes,kitt1987/kubernetes,dixudx/kubernetes,ii/kubernetes,dereknex/kubernetes,kevin-wangzefeng/kubernetes,x13n/kubernetes,olivierlemasle/kubernetes,coolsvap/kubernetes,xlgao-zju/kubernetes,hex108/kubernetes,rrati/kubernetes,li-ang/kubernetes,wongma7/kubernetes,sanjeevm0/kubernetes,kubernetes/kubernetes,pires/kubernetes,ping035627/kubernetes,lojies/kubernetes,mYmNeo/kubernetes,spzala/kubernetes,csrwng/kubernetes,xlgao-zju/kubernetes,feiskyer/kubernetes,weiwei04/kubernetes,openshift/kubernetes,mikebrow/kubernetes,mosoft521/kubernetes,weiwei04/kubernetes,ravilr/kubernetes,stevesloka/kubernetes,brendandburns/kubernetes,xychu/kubernetes,jagosan/kubernetes,k82/kubernetes,kitt1987/kubernetes,lojies/kubernetes,monopole/kubernetes,jingxu97/kubernetes,wongma7/kubernetes,rafax/kubernetes,x13n/kubernetes,xlgao-zju/kubernetes,PI-Victor/kubernetes,kevin-wangzefeng/kubernetes,sanjeevm0/kubernetes,xychu/kubernetes,joelsmith/kubernetes,mikebrow/kubernetes,nak3/kubernetes,matthyx/kubernetes,MikeSpreitzer/kubernetes,nak3/kubernetes,jdef/kubernetes,coolsvap/kubernetes,fanzhangio/kubernetes,dereknex/kubernetes,soltysh/kubernetes,jsafrane/kubernetes,sanjeevm0/kubernetes,andrewrynhard/kubernetes,warmchang/kubernetes,kubernetes/kubernetes,jackfrancis/kubernetes,kpgriffith/kubernetes,mahak/kubernetes,MikeSpreitzer/kubernetes,idvoretskyi/kubernetes,verult/kubernetes,spzala/kubernetes,tpepper/kubernetes,BenTheElder/kubernetes,humblec/kubernetes,andrewrynhard/kubernetes,cmluciano/kubernetes,sanjeevm0/kubernetes,ravilr/kubernetes,PiotrProkop/kubernetes,mkumatag/kubernetes,Clarifai/kubernetes,nckturner/kubernetes,openshift/kubernetes,dereknex/kubernetes,fabriziopandini/kubernetes,ravilr/kubernetes,stevesloka/kubernetes,iameli/kubernetes,nckturner/kubernetes,mengqiy/kubernetes,jackfrancis/kubernetes,weiwei04/kubernetes,dereknex/kubernetes,nikhita/kubernetes,cofyc/kubernetes,mahak/kubernetes,pires/kubernetes,chrislovecnm/kubernetes,BenTheElder/kubernetes,PI-Victor/kubernetes,nikhita/kubernetes,fanzhangio/kubernetes,Acidburn0zzz/kubernetes,feiskyer/kubernetes