added test for respondTo() callback args
added test for respondTo() callback args

friederbluemle/express,swarajgiri/express,samuelcastro/express,jenia0jenia/express,expressjs/express,micha149/express,stoskov/express,za-creature/express,hightechweb/express,BaggersIO/express,andrejewski/express,frootloops/express,simudream/express,Eric-Vandenberg/express,simudream/express,hl198181/express,jenalgit/express,expressjs/express,blairzhang/express,stewartml/express,bercanozcan/express,nodejs-camp/booklog-ausir,nodejs-camp/booklog-polo,1verson/express,countdracular/express,Riokai/express,flomotlik/express,cflynn07/express,tyler-johnson/express,microlv/express,featurist/express,awronka/express,neomadara/express,grigorkh/express,andrejewski/express,swstack/express,simudream/express,youprofit/express,WangCao/express,vidyar/express,ericlu88/express,tjmehta/express,Ju2ender/express,Matrixbirds/express,xtidt/express,mimaidms/express,frootloops/express,ahdinosaur/express,luxe-eng/valet-express.express,andriyl/express,countdracular/express,svnh/express,sujianping/express,youprofit/express,juanpastas/express,PeterWangPo/express,dongooo/express,andriyl/express,jimmykuo/express,methuz/express,kawanet/express,michaeljunlove/express,ralic/express,strongloop/express,mikewesthad/express,ZackBotkin/express,JulyZhu/express,abhi3/express,qq645381995/express,topaxi/express,nodejs-camp/booklog-leo,RickyDan/express,michaeljunlove/express,aifeld/express,Kevnz/express,smcmurray/express,awronka/express,blainsmith/express,maraoz/express,dgofman/express,PeterWangPo/express,blakeembrey/express,PUSEN/express,kubrickology/express,KodkodGates/express,YR/express,nodejs-camp/booklog-ben,svnh/express,MoraLin/mora-test,Riokai/express,abhi3/express,udhayam/express,luxe-eng/valet-express.express,ericlu88/express,Jonekee/express,ZackBotkin/express,jinghuizhai/express,Ivanwangcy/express,drzorm/express,v10258/express,chrisinajar/express,kunalpict/express,XueQian/express,Ju2ender/express,Kevnz/express,BaggersIO/express,michaeljunlove/express,evilboss/express,heicx/express,vidyar/express,benshiue/booklog-ben,thepont/express,chrisinajar/express,Talkyunyun/express,blainsmith/express,Haru1990/express,hdngr/express,devgeniem/express,xtidt/express,RanadeepPolavarapu/express,codeforgeek/express,wesleytodd/express,vidyar/express,Haru1990/express,WangCao/express,juanpastas/express,philxia/ex-tst-framework,TestingCI/express,hpcslag/express,VegeChou/express,TestingCI/express,Flip120/express,yinhe007/express,emvici/emvici-reqres-tify,nodejs-camp/booklog-archer,demohi/express,WebStyle/express,qq645381995/express,swarajgiri/express,stevemao/express,ahdinosaur/express,christopheranderson/express,nodejs-camp/booklog-tonebeta,nodejs-camp/booklog-s890506,coreypnorris/express,yinhe007/express,WangCao/express,buildsample/express,weilixia/express,nbeydoon/express,kunalpict/express,nodejs-camp/booklog-chenyou,microlv/express,kawanet/express,mcanthony/express,nodejs-camp/booklog-tonebeta-update,dongooo/express,baldurh/express,fakedarren/express,rgrove/express,jymsy/express,maraoz/express,smcmurray/express,hanweifish/express,tyler-johnson/express,gdeividas/express,shanawarkhan/express,simplyianm/express,sarvex/express,jenalgit/express,robomc/express,hdngr/express,devgeniem/express,dreamingblackcat/express,flomotlik/express,lmtdit/express,RanadeepPolavarapu/express,stewartml/express,auth0/express,soyuka/express,codeforgeek/express,juandav/express,r14r-work/fork_express_master,bjrmatos/express,chrisinajar/express,adjohnson916/express,buildsample/express,hanweifish/express,Talkyunyun/express,abdulhannanali/express,hl198181/express,xiaofuzi/express,featurist/express,LestaD/express,grigorkh/express,CrazySherman/express,fuse-mars/express,smcmurray/express,srichatala/express,shanawarkhan/express,1amageek/express,leiqiang75/express,caiocutrim/express,saisai/express,dongseop/express,gretac/express,nodejs-camp/booklog-chenyou,supasate/express,kunalpict/express,dongseop/express,za-creature/express,abdulhannanali/express,nodejs-camp/booklog-ansaga,JulyZhu/express,nodejs-camp/booklog-linkchen,Ivanwangcy/express,nodejs-camp/booklog-Zak,kylezhang/express,heicx/express,chuym/express,XueQian/express,r14r/fork_express_master,xiaofuzi/express,KodkodGates/express,HXYNODE/express,tjmehta/express,igarciaes/express,blairzhang/express,nodejs-camp/booklog-linkchen,junxiong/express,llwanghong/express,1amageek/express,nodejs-camp/booklog-homa,r14r-work/fork_express_master,Lexine/express,FernAbby/express,hpcslag/express,XueQian/express,nodejs-camp/booklog-tonebeta,btleffler/express,sarvex/express,stoskov/express,evanlucas/express,nodejs-camp/booklog-homa,friederbluemle/express,nodejs-camp/booklog-ben,FernAbby/express,nodejs-camp/booklog-mora,nodejs-camp/booklog-jason,fineday32/express,dotnetCarpenter/express,nodejs-camp/booklog-jollen,coreypnorris/express,hanqingnan/express,pathirana/express,rupanjanbaidya/express,swstack/express,gdeividas/express,youprofit/express,pathirana/express,pshomov/express,buildsample/express,elkingtonmcb/express,lmtdit/express,topaxi/express,KodkodGates/express,Faiz7412/express,vinodhalaharvi/express,jymsy/express,Eric-Vandenberg/express,blairzhang/express,za-creature/express,evilboss/express,hdngr/express,hacksparrow/express,nodejs-camp/booklog-tonebeta-update,mauricionr/express,ZackBotkin/express,vnglst/express,benshiue/booklog-ben,angelsanz/express,nbeydoon/express,robomc/express,Matrixbirds/express,bercanozcan/express,vinodhalaharvi/express,pstrike/express,Faiz7412/express,udhayam/express,lian774739140/express,demohi/express,jinghuizhai/express,vnglst/express,dieuly/express,listepo/express,pstrike/express,Flip120/express,nodejs-camp/booklog-archer,xiaofuzi/express,cflynn07/express,vinodhalaharvi/express,WebStyle/express,1verson/express,nodejs-camp/booklog-jason,dieuly/express,qitianchan/express,TestingCI/express,gnowoel/express,btleffler/express,supasate/express,LestaD/express,nodejs-camp/booklog-jollen,soyuka/express,weilixia/express,nodejs-camp/booklog-leo,sibura/express,leiqiang75/express,MoraLin/mora-test,v10258/express,corporateanon/express,Eric-Vandenberg/express,lemelon/express,nodejs-camp/booklog-s890506,swarajgiri/express,fanzetao/express,listepo/express,evilboss/express,corporateanon/express,dotnetCarpenter/express,bjrmatos/express,r14r/fork_express_master,nodejs-camp/booklog-polo,PUSEN/express,Flip120/express,neomadara/express,lmtdit/express,ralic/express,adjohnson916/express,philxia/ex-tst-framework,dsupera13/express,stevemao/express,v10258/express,jenia0jenia/express,bercanozcan/express,supasate/express,evanlucas/express,mikewesthad/express,ci-test2/express,HXYNODE/express,srichatala/express,dreamingblackcat/express,baldurh/express,Lexine/express,stevemao/express,danielrohers/express,svnh/express,dotnetCarpenter/express,wtony/express,wesleytodd/express,hanqingnan/express,ifraixedes/express,wtony/express,nodejs-camp/booklog-Zak,blakeembrey/express,nodejs-camp/booklog-ansaga,sujianping/express,caiocutrim/express,fanzetao/express,ci-test2/express,kubrickology/express,nathan818fr/express,dafabulousteach/express,lian774739140/express,thepont/express,nbeydoon/express,nodejs-camp/booklog-mora,fuse-mars/express,jenalgit/express,danielrohers/express,mauricionr/express,LestaD/express,Jonekee/express,hacksparrow/express,RickyDan/express,auth0/express,dgofman/express,drzorm/express,jinghuizhai/express,mimaidms/express,luxe-eng/valet-express.express,VegeChou/express,topaxi/express,strongloop/express,kentcdodds/express,dongseop/express,dafabulousteach/express,simplyianm/express,sibura/express,kentcdodds/express,aifeld/express,sarvex/express,1amageek/express,brianloveswords/express,tianhengzhou/express,CrazySherman/express,jenia0jenia/express,tianhengzhou/express,dsupera13/express,maraoz/express,kylezhang/express,samuelcastro/express,fineday32/express,hightechweb/express,christopheranderson/express,devgeniem/express,YR/express,methuz/express,blakeembrey/express,ci-test2/express,igarciaes/express,ifraixedes/express,vnglst/express,BaggersIO/express,stewartml/express,chuym/express,grigorkh/express,juandav/express,coreypnorris/express,rgrove/express,angelsanz/express,qitianchan/express,Ju2ender/express,corporateanon/express,featurist/express,micha149/express,philxia/ex-tst-framework,nodejs-camp/booklog-polo,nodejs-camp/booklog-ausir,saisai/express,abhi3/express,Riokai/express,gnowoel/express,junxiong/express,philxia/ex-tst-framework,fakedarren/express,dafabulousteach/express,mcanthony/express,rupanjanbaidya/express,junxiong/express,wtony/express,lemelon/express,jimmykuo/express,elkingtonmcb/express,abdulhannanali/express,friederbluemle/express,hpcslag/express,llwanghong/express,listepo/express,gnowoel/express,dreamingblackcat/express,nodejs-camp/booklog-chle,fakedarren/express,pshomov/express,angelsanz/express,Faiz7412/express,nodejs-camp/booklog-chle,gretac/express,stoskov/express,qq645381995/express,kylezhang/express,qitianchan/express,nathan818fr/express