fixing tests error and warnings
fixing tests error and warnings

divisionparzero/skrollr,boregan/skrollr,boregan/skrollr,mtgrunt/skrollr,10by10pixel/skrollr,mikesoops/skrollr,VladimirGavrilov/skrollr,fengyiyi/skrollr,jeff235255/skrollr,leendx/skrollr,fengyiyi/skrollr,divisionparzero/skrollr,winglua/skrollr,Bilyachenko/skrollr,antoniocicerone/skrollr,mumer92/skrollr,SanhNX/skrollr,GerHobbelt/skrollr,winglua/skrollr,garylgh/skrollr,Kalmani/skrollr,GerHobbelt/skrollr,jeff235255/skrollr,alvarotrigo/skrollr,AlphaStaxLLC/skrollr,Bilyachenko/skrollr,dommuthu/skrollr,BenHeubl/skrollr,Prinzhorn/skrollr,MassImpact/skrollr,2947721120/skrollr,kavallo/skrollr,fxck/skrollr,cwj10/skrollr,garylgh/skrollr,RohithKP/skrollr,matthewgoodwin/skrollr,2947721120/skrollr,kavallo/skrollr,VladimirGavrilov/skrollr,BenHeubl/skrollr,liqk2014/skrollr,leendx/skrollr,dommuthu/skrollr,leonardykris/skrollr,alvarotrigo/skrollr,fxck/skrollr,xiamiLi/skrollr,jianxiansining/skrollr,antoniocicerone/skrollr,matthewgoodwin/skrollr,mtgrunt/skrollr,lauffenp/skrollr,jianxiansining/skrollr,xiamiLi/skrollr,unxsist/skrollr,grigorkh/skrollr,NancyFan/skrollr,lauffenp/skrollr,grigorkh/skrollr,RohithKP/skrollr,udhayam/skrollr,udhayam/skrollr,cwj10/skrollr,danieldietrich/skrollr,dszls/skrollr,dshreyas11/skrollr,leonardykris/skrollr,piyushkhemka/skrollr,dshreyas11/skrollr,Kalmani/skrollr,Prinzhorn/skrollr,liqk2014/skrollr,mumer92/skrollr,MassImpact/skrollr,utkarshx/skrollr,NancyFan/skrollr,danieldietrich/skrollr,thenaughtychild/skrollr,mikesoops/skrollr,piyushkhemka/skrollr,thenaughtychild/skrollr,10by10pixel/skrollr,unxsist/skrollr,bspiritxp/skrollr,SanhNX/skrollr,dszls/skrollr,AlphaStaxLLC/skrollr,bspiritxp/skrollr,utkarshx/skrollr