added test for modern attributes
added test for modern attributes

shuoshi/DTCoreText,gank0326/CoreTextWithHTML,jingchunYuan/DTCoreText,wangmb/DTCoreText,thusfresh/DTCoreText,devontech/DTCoreText,rgregg/DTCoreText,appunite/DTCoreText,DanGe42/DTCoreText,iwakevin/DTCoreText,bnickel/DTCoreText,rgregg/DTCoreText,gnr/DTCoreText,qskycolor/DTCoreText,niklassaers/DTCoreText,gank0326/CoreTextWithHTML,Esdeath/DTCoreText,canyu9512/DTCoreText,gsempe/DTCoreText,rain1988/DTCoreText,canyu9512/DTCoreText,z8927623/DTCoreText,liulinjian/DTCoreText,artifacts/DTCoreText,Cocoanetics/DTCoreText,Akylas/DTCoreText,youprofit/DTCoreText,openresearch/DTCoreText,iwakevin/DTCoreText,davbeck/DTCoreText,artifacts/DTCoreText,Akylas/DTCoreText,shuoshi/DTCoreText,CoderJWYang/DTCoreText,AmberWhiteSky/DTCoreText,i-miss-you/DTCoreText,niklassaers/DTCoreText,depl0y/DTCoreText,i-miss-you/DTCoreText,AmberWhiteSky/DTCoreText,xiaoyanit/DTCoreText,devontech/DTCoreText,cnbin/DTCoreText,esteluk/DTCoreText,pivotaltracker/DTCoreText,SanjoDeundiak/DTCoreText,artifacts/DTCoreText,1yvT0s/DTCoreText,liuslevis/DTCoreText,bnickel/DTCoreText,wangmb/DTCoreText,qskycolor/DTCoreText,liulinjian/DTCoreText,depl0y/DTCoreText,wlisac/DTCoreText,wlisac/DTCoreText,sujeking/DTCoreText,programming086/DTCoreText,goodheart/DTCoreText,rain1988/DTCoreText,Cocoanetics/DTCoreText,Cocoanetics/DTCoreText,holgersindbaek/DTCoreText,jjamminjim/DTCoreText,DanGe42/DTCoreText,sidslog/DTCoreText,barz/DTCoreText,cnbin/DTCoreText,1yvT0s/DTCoreText,davbeck/DTCoreText,SanjoDeundiak/DTCoreText,artifacts/DTCoreText,w2592583/DTCoreText,appunite/DTCoreText,thusfresh/DTCoreText,jingchunYuan/DTCoreText,z8927623/DTCoreText,gsempe/DTCoreText,yaoxiaoyong/DTCoreText,sujeking/DTCoreText,goodheart/DTCoreText,barz/DTCoreText