Add unit tests for manifest package
Add unit tests for manifest package

Signed-off-by: Stephen J Day <63efd86fa22882ae89b6027b22a36e4db1f4214d@docker.com>

anweiss/docker.github.io,genedock/distribution,londoncalling/docker.github.io,huamai-io/distribution,atyenoria/distribution,GerritForge/docker-registry,RichardScothern/distribution,jpoler/distribution,denverdino/denverdino.github.io,JimGalasyn/docker.github.io,denverdino/denverdino.github.io,JimGalasyn/docker.github.io,lorieri/distribution,bobphill/distribution,avinson/distribution,dave-tucker/distribution,avinson/distribution,phiroict/docker,schu/distribution,denverdino/denverdino.github.io,irachex/distribution,joaofnfernandes/docker.github.io,mattrgreen/distribution,zerosign/distribution,johnstep/docker.github.io,paulczar/distribution,bigsurge/distribution,LuisBosquez/docker.github.io,LuisBosquez/docker.github.io,hopkings2008/distribution,whyrusleeping/distribution,higebu/distribution,dtromb/distribution,andrewnguyen/distribution,rillig/docker.github.io,baloo/distribution,joaofnfernandes/docker.github.io,dmp42/distribution,linearregression/distribution,sallyom/distribution,convox/distribution,joaofnfernandes/docker.github.io,djenriquez/distribution,RaviTezu/distribution,denverdino/distribution,gierschv/distribution,GerritForge/docker-registry,duglin/distribution,bobphill/distribution,noxiouz/distribution,stevvooe/distribution,mboersma/distribution,dmcgowan/distribution,jzwlqx/denverdino.github.io,docker/docker.github.io,championv/distribution,sallyom/distribution,sthapaun/distribution,BSWANG/denverdino.github.io,shubheksha/docker.github.io,tt/distribution,jpoler/distribution,joeuo/docker.github.io,qiniu/distribution,menglingwei/denverdino.github.io,konstruktoid/distribution,troy0820/docker.github.io,AoJ/distribution,duglin/distribution,genedock/distribution,jrjang/distribution,tianon/docker-distribution,miminar/distribution,docker/docker.github.io,RyanDeng/distribution,mboersma/distribution,LuisBosquez/docker.github.io,zhaytee/distribution,pdevine/distribution,apuigsech/distribution,shubheksha/docker.github.io,icecrime/distribution,spacexnice/distribution,harche/distribution,lebauce/distribution,atyenoria/distribution,londoncalling/docker.github.io,Gobliip/distribution,aprajshekhar/distribution,humble00/distribution,higebu/distribution,huamai-io/distribution,shyr/distribution,championv/distribution,JimGalasyn/docker.github.io,sanscontext/docker.github.io,gierschv/distribution,amitshukla/distribution,ibuildthecloud/distribution,ChenLingPeng/distribution,gdevillele/docker.github.io,cyli/distribution,cyli/distribution,dtromb/distribution,adambrett-forks/distribution,orivej/distribution,jackpgriffin/distribution,gdevillele/docker.github.io,shubheksha/docker.github.io,bdwill/docker.github.io,tdooner/distribution,hanleys/distribution,rodacom/docker-hub,docker-zh/docker.github.io,humble00/distribution,troy0820/docker.github.io,rhoml/distribution,harrisonfeng/distribution,dv/distribution,gdevillele/docker.github.io,jordimassaguerpla/distribution,thaJeztah/docker.github.io,cezarsa/distribution,docker-zh/docker.github.io,zhangcoldwater/distribution,calavera/distribution,rillig/docker.github.io,jwhonce/distribution,jhicks-camgian/distribution,troy0820/docker.github.io,menglingwei/denverdino.github.io,RaviTezu/distribution,nwt/distribution,manoj535/distribution,JimGalasyn/docker.github.io,jmitchell/distribution,sergeyfd/distribution,stevvooe/distribution,aybabtme/distribution,docker/docker.github.io,thaJeztah/docker.github.io,mbentley/distribution,docker/docker.github.io,Tiesheng/distribution,denverdino/docker.github.io,bdwill/docker.github.io,AndreyKostov/distribution,aybabtme/distribution,johnstep/docker.github.io,dave-tucker/distribution,andrewnguyen/distribution,13W/distribution,hpcloud/distribution,bpradipt/distribution,denverdino/distribution-fuse,aprajshekhar/distribution,dmcgowan/distribution,shin-/docker.github.io,konstruktoid/distribution,whyrusleeping/distribution,wangmingshuai/distribution,mbentley/distribution,shakamunyi/distribution,jzwlqx/denverdino.github.io,denverdino/docker.github.io,rhoml/distribution,jzwlqx/distribution,nwt/distribution,jlhawn/distribution,wking/docker-distribution,calavera/distribution,sergeyfd/distribution,yeghishe/distribution,RichardScothern/distribution,jordimassaguerpla/distribution,vdemeester/distribution,tt/distribution,BSWANG/denverdino.github.io,aduermael/docker.github.io,qiniu/distribution,aduermael/docker.github.io,LuisBosquez/docker.github.io,jlhawn/distribution,mattmoor/distribution,thaJeztah/docker.github.io,shubheksha/docker.github.io,shakamunyi/distribution,lorieri/distribution,bxy09/distribution,wangmingshuai/distribution,BradleyA/distribution,jwhonce/distribution,thaJeztah/distribution,denverdino/distribution-stevvooe,donhcd/distribution,jramseye/distribution,gdevillele/docker.github.io,alexisbellido/docker.github.io,estesp/distribution,joeuo/docker.github.io,sanscontext/docker.github.io,13W/distribution,docker/distribution,BSWANG/denverdino.github.io,jonboulle/distribution,docker-zh/docker.github.io,Tiesheng/distribution,iskradelta/distribution,thaJeztah/docker.github.io,mikebrow/distribution,moxiegirl/distribution,beni55/distribution,phiroict/docker,gdevillele/docker.github.io,thelinuxkid/distribution,BradleyA/distribution,lcarstensen/distribution,shin-/docker.github.io,phiroict/docker,mattmoor/distribution,denverdino/docker.github.io,joaofnfernandes/docker.github.io,zhangcoldwater/distribution,bdwill/docker.github.io,estesp/distribution,sanscontext/docker.github.io,zerosign/distribution,shin-/docker.github.io,mattrgreen/distribution,liubin/distribution,kmala/distribution,joeuo/docker.github.io,bxy09/distribution,phiroict/docker,londoncalling/docker.github.io,thelinuxkid/distribution,donhcd/distribution,docker/distribution,denverdino/denverdino.github.io,armbuilds/distribution,arvindkandhare/distribution,Gobliip/distribution,irachex/distribution,gavioto/distribution,nevermosby/distribution,londoncalling/docker.github.io,anweiss/docker.github.io,maquanyi/distribution,yeghishe/distribution,dmp42/distribution,mikebrow/distribution,hpcloud/distribution,denverdino/docker.github.io,rochacon/distribution,runcom/distribution,AndreyKostov/distribution,dobril-stanga/distribution,hanleys/distribution,curtiszimmerman/distribution,tian-xiaobo/distribution,johnstep/docker.github.io,ChenLingPeng/distribution,gorcz/distribution,joeuo/docker.github.io,docker/docker.github.io,joeuo/docker.github.io,sadlil/distribution,icecrime/distribution,aaronlehmann/distribution,ibuildthecloud/distribution,arneluehrs/distribution,menglingwei/denverdino.github.io,thaJeztah/distribution,johnstep/docker.github.io,jzwlqx/denverdino.github.io,gavioto/distribution,anweiss/docker.github.io,cezarsa/distribution,ContainerSolutions/distribution,nevermosby/distribution,lebauce/distribution,kmala/distribution,dv/distribution,aaronlehmann/distribution,rillig/docker.github.io,bigsurge/distribution,LouisKottmann/distribution,denverdino/distribution-stevvooe,schu/distribution,deis/distribution,jmitchell/distribution,rillig/docker.github.io,CodeJuan/distribution,wking/docker-distribution,n1tr0g/distribution,denverdino/docker.github.io,harche/distribution,sebrandon1/distribution,miminar/distribution,aibaars/distribution,tdooner/distribution,dobril-stanga/distribution,johnstep/docker.github.io,BrickXu/distribution,dalanlan/distribution,endophage/distribution,CodeJuan/distribution,maquanyi/distribution,BrickXu/distribution,jonboulle/distribution,LouisKottmann/distribution,bdwill/docker.github.io,hopkings2008/distribution,jhicks-camgian/distribution,adambrett-forks/distribution,harrisonfeng/distribution,menglingwei/denverdino.github.io,armbuilds/distribution,iskradelta/distribution,tianon/docker-distribution,denverdino/distribution-fuse,rbarlow/distribution,codefresh-io/cf-distribution,n1tr0g/distribution,konnase/distribution,jrjang/distribution,jzwlqx/distribution,alexisbellido/docker.github.io,vdemeester/distribution,zhaytee/distribution,curtiszimmerman/distribution,bsmr-docker/distribution,liubin/distribution,denverdino/denverdino.github.io,apuigsech/distribution,linearregression/distribution,LuisBosquez/docker.github.io,bpradipt/distribution,gorcz/distribution,imranraja85/distribution,baloo/distribution,BSWANG/denverdino.github.io,imranraja85/distribution,joaofnfernandes/docker.github.io,Seb-Solon/distribution,sanscontext/docker.github.io,tschoots/distribution,arvindkandhare/distribution,jzwlqx/denverdino.github.io,denverdino/distribution,noxiouz/distribution,tschoots/distribution,paulczar/distribution,docker-zh/docker.github.io,bdwill/docker.github.io,orivej/distribution,uptownhr/distribution,xiekeyang/distribution,sadlil/distribution,nateww/distribution,danix800/docker.github.io,beni55/distribution,troy0820/docker.github.io,konnase/distribution,sebrandon1/distribution,alexisbellido/docker.github.io,thaJeztah/docker.github.io,deis/distribution,manoj535/distribution,danix800/docker.github.io,danix800/docker.github.io,ContainerSolutions/distribution,RyanDeng/distribution,arneluehrs/distribution,anweiss/docker.github.io,shubheksha/docker.github.io,JimGalasyn/docker.github.io,BrianBland/distribution,lindenlab/distribution,rodacom/docker-hub,yuwaMSFT2/distribution,endophage/distribution,lcarstensen/distribution,dalanlan/distribution,amitshukla/distribution,bsmr-docker/distribution,nateww/distribution,alexisbellido/docker.github.io,AoJ/distribution,xiekeyang/distribution,jramseye/distribution,alexisbellido/docker.github.io,BSWANG/denverdino.github.io,tian-xiaobo/distribution,Seb-Solon/distribution,rbarlow/distribution,anweiss/docker.github.io,djenriquez/distribution,menglingwei/denverdino.github.io,sthapaun/distribution,aduermael/docker.github.io,spacexnice/distribution,pdevine/distribution,shin-/docker.github.io,lindenlab/distribution,shyr/distribution,shin-/docker.github.io,jackpgriffin/distribution,moxiegirl/distribution,rochacon/distribution,codefresh-io/cf-distribution,aibaars/distribution,jzwlqx/denverdino.github.io,londoncalling/docker.github.io,docker-zh/docker.github.io,convox/distribution,sanscontext/docker.github.io,runcom/distribution,uptownhr/distribution,danix800/docker.github.io,yuwaMSFT2/distribution,BrianBland/distribution,aduermael/docker.github.io,phiroict/docker