Storage: blobwriter.Write/Seek test case
Storage: blobwriter.Write/Seek test case

Signed-off-by: Arthur Baars <615193f904a227a9cebf5ad3042a37668b81f4c6@semmle.com>

jzwlqx/denverdino.github.io,londoncalling/docker.github.io,BSWANG/denverdino.github.io,sebrandon1/distribution,vdemeester/distribution,docker/docker.github.io,mattrgreen/distribution,johnstep/docker.github.io,danix800/docker.github.io,thaJeztah/docker.github.io,joeuo/docker.github.io,sadlil/distribution,mbentley/distribution,denverdino/denverdino.github.io,vdemeester/distribution,hopkings2008/distribution,alexisbellido/docker.github.io,rillig/docker.github.io,phiroict/docker,danix800/docker.github.io,alexisbellido/docker.github.io,huamai-io/distribution,phiroict/docker,denverdino/denverdino.github.io,konnase/distribution,BSWANG/denverdino.github.io,gdevillele/docker.github.io,duglin/distribution,huamai-io/distribution,anweiss/docker.github.io,anweiss/docker.github.io,LuisBosquez/docker.github.io,aduermael/docker.github.io,rillig/docker.github.io,sebrandon1/distribution,gdevillele/docker.github.io,docker/docker.github.io,joeuo/docker.github.io,yuwaMSFT2/distribution,denverdino/docker.github.io,gdevillele/docker.github.io,menglingwei/denverdino.github.io,cyli/distribution,nwt/distribution,johnstep/docker.github.io,BrianBland/distribution,shin-/docker.github.io,sanscontext/docker.github.io,manoj535/distribution,anweiss/docker.github.io,jzwlqx/denverdino.github.io,denverdino/docker.github.io,troy0820/docker.github.io,denverdino/denverdino.github.io,sanscontext/docker.github.io,moxiegirl/distribution,rillig/docker.github.io,moxiegirl/distribution,Seb-Solon/distribution,deis/distribution,docker-zh/docker.github.io,docker-zh/docker.github.io,shubheksha/docker.github.io,genedock/distribution,johnstep/docker.github.io,aduermael/docker.github.io,BSWANG/denverdino.github.io,joeuo/docker.github.io,RichardScothern/distribution,thaJeztah/docker.github.io,gdevillele/docker.github.io,spacexnice/distribution,noxiouz/distribution,phiroict/docker,docker/docker.github.io,joaofnfernandes/docker.github.io,shubheksha/docker.github.io,shyr/distribution,menglingwei/denverdino.github.io,dobril-stanga/distribution,thaJeztah/distribution,mbentley/distribution,docker/docker.github.io,miminar/distribution,jzwlqx/distribution,jwhonce/distribution,konstruktoid/distribution,jzwlqx/denverdino.github.io,alexisbellido/docker.github.io,thaJeztah/docker.github.io,bdwill/docker.github.io,sanscontext/docker.github.io,londoncalling/docker.github.io,danix800/docker.github.io,jwhonce/distribution,JimGalasyn/docker.github.io,schu/distribution,shubheksha/docker.github.io,docker-zh/docker.github.io,liubin/distribution,docker/distribution,alexisbellido/docker.github.io,genedock/distribution,shyr/distribution,shin-/docker.github.io,estesp/distribution,mikebrow/distribution,aaronlehmann/distribution,aduermael/docker.github.io,rbarlow/distribution,alexisbellido/docker.github.io,BSWANG/denverdino.github.io,mikebrow/distribution,konnase/distribution,bdwill/docker.github.io,spacexnice/distribution,miminar/distribution,harrisonfeng/distribution,bdwill/docker.github.io,nwt/distribution,phiroict/docker,londoncalling/docker.github.io,cezarsa/distribution,shubheksha/docker.github.io,troy0820/docker.github.io,BrianBland/distribution,JimGalasyn/docker.github.io,stevvooe/distribution,mattrgreen/distribution,JimGalasyn/docker.github.io,estesp/distribution,BSWANG/denverdino.github.io,LuisBosquez/docker.github.io,cyli/distribution,jlhawn/distribution,docker/docker.github.io,bdwill/docker.github.io,JimGalasyn/docker.github.io,aprajshekhar/distribution,shin-/docker.github.io,hopkings2008/distribution,kmala/distribution,troy0820/docker.github.io,joeuo/docker.github.io,denverdino/denverdino.github.io,JimGalasyn/docker.github.io,noxiouz/distribution,bdwill/docker.github.io,aprajshekhar/distribution,jzwlqx/denverdino.github.io,thaJeztah/distribution,sergeyfd/distribution,menglingwei/denverdino.github.io,aduermael/docker.github.io,thaJeztah/docker.github.io,kmala/distribution,jzwlqx/distribution,sanscontext/docker.github.io,johnstep/docker.github.io,johnstep/docker.github.io,rillig/docker.github.io,andrewnguyen/distribution,denverdino/docker.github.io,denverdino/docker.github.io,docker/distribution,shubheksha/docker.github.io,aaronlehmann/distribution,gdevillele/docker.github.io,sadlil/distribution,xiekeyang/distribution,yuwaMSFT2/distribution,thaJeztah/docker.github.io,shin-/docker.github.io,rbarlow/distribution,deis/distribution,shin-/docker.github.io,liubin/distribution,danix800/docker.github.io,docker-zh/docker.github.io,joaofnfernandes/docker.github.io,LuisBosquez/docker.github.io,menglingwei/denverdino.github.io,joaofnfernandes/docker.github.io,docker-zh/docker.github.io,dmcgowan/distribution,LuisBosquez/docker.github.io,anweiss/docker.github.io,konstruktoid/distribution,denverdino/docker.github.io,anweiss/docker.github.io,londoncalling/docker.github.io,jlhawn/distribution,denverdino/denverdino.github.io,jzwlqx/denverdino.github.io,troy0820/docker.github.io,sergeyfd/distribution,dobril-stanga/distribution,dmcgowan/distribution,stevvooe/distribution,joaofnfernandes/docker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