Add the test about Element attributes.
Add the test about Element attributes.

avadacatavra/servo,emilio/servo,g-k/servo,AnthonyBroadCrawford/servo,codemac/servo,mt2d2/servo,szeged/servo,s142857/servo,meh/servo,michaelwu/servo,WriterOfAlicrow/servo,Aalhad/CanvasRenderingContext2DMozilla,runarberg/servo,g-k/servo,thiagopnts/servo,tempbottle/servo,jimberlage/servo,rnestler/servo,jgraham/servo,nnethercote/servo,aidanhs/servo,RenaudParis/servo,pgonda/servo,KiChjang/servo,AnthonyBroadCrawford/servo,wpgallih/servo,j3parker/servo,zhangjunlei26/servo,ryancanhelpyou/servo,zhangjunlei26/servo,dsandeephegde/servo,DominoTree/servo,jdramani/servo,akosel/servo,WriterOfAlicrow/servo,sadmansk/servo,ConnorGBrewster/servo,GyrosOfWar/servo,huonw/servo,seanmonstar/servo,nick-thompson/servo,rentongzhang/servo,vks/servo,CJ8664/servo,evilpie/servo,dmarcos/servo,notriddle/servo,dagnir/servo,metajack/servo,saneyuki/servo,zhangjunlei26/servo,Adenilson/prototype-viewing-distance,pgonda/servo,indykish/servo,jdramani/servo,j3parker/servo,srbhklkrn/SERVOENGINE,pgonda/servo,jgraham/servo,froydnj/servo,chotchki/servo,tschneidereit/servo,Adenilson/prototype-viewing-distance,akosel/servo,jlegendary/servo,larsbergstrom/servo,huonw/servo,SimonSapin/servo,thiagopnts/servo,thiagopnts/servo,larsbergstrom/servo,indykish/servo,juzer10/servo,RenaudParis/servo,A-deLuna/servo,peterjoel/servo,mrobinson/servo,Adenilson/prototype-viewing-distance,karlito40/servo,WriterOfAlicrow/servo,ConnorGBrewster/servo,CJ8664/servo,KiChjang/servo,larsbergstrom/servo,AnthonyBroadCrawford/servo,vks/servo,vks/servo,KiChjang/servo,echochamber/servo,srbhklkrn/SERVOENGINE,dhananjay92/servo,fiji-flo/servo,tschneidereit/servo,juzer10/servo,s142857/servo,paulrouget/servo,wartman4404/servo,saratang/servo,canaltinova/servo,dsandeephegde/servo,RenaudParis/servo,jimberlage/servo,notriddle/servo,canaltinova/servo,froydnj/servo,WriterOfAlicrow/servo,Adenilson/prototype-viewing-distance,nerith/servo,cbrewster/servo,akosel/servo,nnethercote/servo,GyrosOfWar/servo,saneyuki/servo,emilio/servo,paulrouget/servo,upsuper/servo,mt2d2/servo,splav/servo,chotchki/servo,Aalhad/CanvasRenderingContext2DMozilla,jgraham/servo,nnethercote/servo,splav/servo,zentner-kyle/servo,dati91/servo,nrc/servo,evilpie/servo,A-deLuna/servo,paulrouget/servo,caldwell/servo,DominoTree/servo,DominoTree/servo,peterjoel/servo,indykish/servo,DominoTree/servo,samfoo/servo,DominoTree/servo,thiagopnts/servo,brendandahl/servo,steveklabnik/servo,michaelwu/servo,kindersung/servo,snf/servo,runarberg/servo,juzer10/servo,boghison/servo,codemac/servo,sadmansk/servo,codemac/servo,youprofit/servo,Adenilson/prototype-viewing-distance,dati91/servo,shrenikgala/servo,mbrubeck/servo,mrobinson/servo,GyrosOfWar/servo,vks/servo,zhangjunlei26/servo,rnestler/servo,metajack/servo,upsuper/servo,nrc/servo,anthgur/servo,notriddle/servo,youprofit/servo,anthgur/servo,paulrouget/servo,runarberg/servo,emilio/servo,avadacatavra/servo,mrobinson/servo,indykish/servo,larsbergstrom/servo,juzer10/servo,pyecs/servo,AnthonyBroadCrawford/servo,caldwell/servo,jlegendary/servo,g-k/servo,runarberg/servo,WriterOfAlicrow/servo,emilio/servo,metajack/servo,zentner-kyle/servo,wpgallih/servo,brendandahl/servo,karlito40/servo,saratang/servo,saratang/servo,paulrouget/servo,canaltinova/servo,evilpie/servo,kindersung/servo,echochamber/servo,bfrohs/servo,evilpie/servo,mbrubeck/servo,ruud-v-a/servo,dhananjay92/servo,splav/servo,samfoo/servo,seanmonstar/servo,GreenRecycleBin/servo,jimberlage/servo,dmarcos/servo,aweinstock314/servo,Adenilson/prototype-viewing-distance,AnthonyBroadCrawford/servo,saneyuki/servo,notriddle/servo,samfoo/servo,DominoTree/servo,caldwell/servo,WriterOfAlicrow/servo,Aalhad/CanvasRenderingContext2DMozilla,echochamber/servo,akosel/servo,Shraddha512/servo,pyecs/servo,Aalhad/CanvasRenderingContext2DMozilla,splav/servo,saneyuki/servo,dsandeephegde/servo,upsuper/servo,j3parker/servo,avadacatavra/servo,peterjoel/servo,aidanhs/servo,zhangjunlei26/servo,caldwell/servo,ruud-v-a/servo,RenaudParis/servo,paulrouget/servo,g-k/servo,emilio/servo,sadmansk/servo,chotchki/servo,kindersung/servo,rixrix/servo,mukilan/servo,shrenikgala/servo,saneyuki/servo,codemac/servo,larsbergstrom/servo,s142857/servo,ConnorGBrewster/servo,meh/servo,hyowon/servo,larsbergstrom/servo,deokjinkim/servo,deokjinkim/servo,mattnenterprise/servo,jimberlage/servo,bjwbell/servo,sadmansk/servo,ruud-v-a/servo,nrc/servo,echochamber/servo,dmarcos/servo,ConnorGBrewster/servo,paulrouget/servo,bjwbell/servo,mattnenterprise/servo,rentongzhang/servo,codemac/servo,snf/servo,dati91/servo,tempbottle/servo,cbrewster/servo,SimonSapin/servo,SimonSapin/servo,michaelwu/servo,evilpie/servo,CJ8664/servo,mdibaiee/servo,tschneidereit/servo,dhananjay92/servo,hyowon/servo,dati91/servo,walac/servo,hyowon/servo,steveklabnik/servo,rixrix/servo,luniv/servo,peterjoel/servo,mattnenterprise/servo,rentongzhang/servo,ConnorGBrewster/servo,brendandahl/servo,dvberkel/servo,dmarcos/servo,j3parker/servo,KiChjang/servo,ryancanhelpyou/servo,bfrohs/servo,zentner-kyle/servo,nrc/servo,CJ8664/servo,ryancanhelpyou/s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ominoTree/servo,ruud-v-a/servo,emilio/servo,snf/servo,mbrubeck/servo,SimonSapin/servo,nerith/servo,dmarcos/servo,evilpie/servo,bfrohs/servo,anthgur/servo,saneyuki/servo,larsbergstrom/servo,Shraddha512/servo,chotchki/servo,wpgallih/servo,zentner-kyle/servo,canaltinova/servo,shrenikgala/servo,walac/servo,mbrubeck/servo,srbhklkrn/SERVOENGINE,CJ8664/servo,upsuper/servo,sadmansk/servo,owaspjocur/servo,nnethercote/servo,caldwell/servo,walac/servo,walac/servo,GreenRecycleBin/servo,thiagopnts/servo,nick-thompson/servo,hyowon/servo,echochamber/servo,szeged/servo,dagnir/servo,notriddle/servo,ruud-v-a/servo,saratang/servo,SimonSapin/servo,ryancanhelpyou/servo,youprofit/servo,zhangjunlei26/servo,nerith/servo,brendandahl/servo,splav/servo,pyfisch/servo,g-k/servo,deokjinkim/servo,jimberlage/servo,Shraddha512/servo,ryancanhelpyou/servo,fiji-flo/servo,nerith/servo,mattnenterprise/servo,juzer10/servo,pgonda/servo,KiChjang/servo,pyfisch/servo,pyfisch/servo,szeged/servo,boghison/servo,KiChjang/servo,RenaudParis/servo,dhananjay92/servo,luniv/servo,tschneidereit/servo,s142857/servo,rentongzhang/servo,deokjinkim/servo,owaspjocur/servo,jlegendary/servo,avadacatavra/servo,larsbergstrom/servo,thiagopnts/servo,rixrix/servo,seanmonstar/servo,GyrosOfWar/servo,zentner-kyle/servo,aidanhs/servo,tafia/servo,nnethercote/servo,mrobinson/servo,evilpie/servo,youprofit/servo,jgraham/servo,GyrosOfWar/servo,vks/servo,rnestler/servo,nrc/servo,jimberlage/servo,jdramani/servo,aidanhs/servo,A-deLuna/servo,seanmonstar/servo,dati91/servo,jlegendary/servo,deokjinkim/servo,pyfisch/servo,runarberg/servo,dagnir/servo,shrenikgala/servo,eddyb/servo,A-deLuna/servo,indykish/servo,szeged/servo,wartman4404/servo,seanmonstar/servo,wpgallih/servo,shrenikgala/servo,cbrewster/servo,cbrewster/servo,dsandeephegde/servo,AnthonyBroadCrawford/servo,paulrouget/servo,szeged/servo,s142857/servo,tempbottle/servo,dvberkel/servo,canaltinova/servo,mukilan/servo,pyecs/servo,RenaudParis/servo,indykish/servo,luniv/servo,boghison/servo,avadacatavra/servo,mrobinson/servo,nerith/servo,pyecs/servo,Shraddha512/servo,szeged/servo,peterjoel/servo,pyfisch/servo,j3parker/servo,srbhklkrn/SERVOENGINE,nick-thompson/servo,paulrouget/servo,saneyuki/servo,SimonSapin/servo,dvberkel/servo,Shraddha512/servo,wartman4404/servo,bjwbell/servo,steveklabnik/servo,karlito40/servo,cbrewster/servo,mt2d2/servo,dagnir/servo,walac/servo,huonw/servo,bjwbell/servo,A-deLuna/servo,dagnir/servo,Shraddha512/servo,fiji-flo/servo,pgonda/servo,akosel/servo,bfrohs/servo,notriddle/servo,DominoTree/servo,metajack/servo,tafia/servo,GreenRecycleBin/servo,CJ8664/servo,avadacatavra/servo,mt2d2/servo,g-k/servo,kindersung/servo,emilio/servo,dagnir/servo,GreenRecycleBin/servo,hyowon/servo,peterjoel/servo