add tests for config.
add tests for config.

ooohiroyukiooo/pry,caporta/pry,raeno/pry,josue804/debunker,shockone/pry,ooohiroyukiooo/pry,scalixte-mdsol/pry,geoffreylitt/pry,scalixte-mdsol/pry,sferik/pry,jasnow/pry,ngpestelos/pry,printercu/pry,tdg5/pry,tdg5/pry,scalixte-mdsol/pry,85x14/pry,caporta/pry,sferik/pry,jasonm23/pry,bronzdoc/pry,sideci-sample/sideci-sample-pry,pvdb/pry,85x14/pry,ngpestelos/pry,nju520/pry,bronzdoc/pry,nju520/pry,icebreaker/pry,icebreaker/pry,tdg5/pry,jasnow/pry,raeno/pry,jasonm23/pry,gfvcastro/pry,printercu/pry,85x14/pry,pvdb/pry,raeno/pry,jasnow/pry,geoffreylitt/pry,gfvcastro/pry,nju520/pry,shockone/pry,ooohiroyukiooo/pry,josue804/debunker,jasonm23/pry,caporta/pry,shockone/pry