add graph traversal tests
add graph traversal tests

aeklant/scipy,jakevdp/scipy,rmcgibbo/scipy,mortonjt/scipy,ales-erjavec/scipy,raoulbq/scipy,arokem/scipy,Shaswat27/scipy,jamestwebber/scipy,zerothi/scipy,Newman101/scipy,anielsen001/scipy,aarchiba/scipy,rmcgibbo/scipy,ilayn/scipy,rmcgibbo/scipy,vhaasteren/scipy,gef756/scipy,nmayorov/scipy,Dapid/scipy,pizzathief/scipy,chatcannon/scipy,sonnyhu/scipy,mikebenfield/scipy,njwilson23/scipy,efiring/scipy,mdhaber/scipy,jjhelmus/scipy,gef756/scipy,Kamp9/scipy,zxsted/scipy,pbrod/scipy,juliantaylor/scipy,teoliphant/scipy,trankmichael/scipy,rgommers/scipy,nonhermitian/scipy,piyush0609/scipy,mhogg/scipy,raoulbq/scipy,WillieMaddox/scipy,gef756/scipy,ortylp/scipy,WarrenWeckesser/scipy,fernand/scipy,jamestwebber/scipy,gertingold/scipy,jsilter/scipy,arokem/scipy,jonycgn/scipy,teoliphant/scipy,haudren/scipy,Stefan-Endres/scipy,vberaudi/scipy,mgaitan/scipy,Srisai85/scipy,pbrod/scipy,person142/scipy,ndchorley/scipy,nmayorov/scipy,trankmichael/scipy,lukauskas/scipy,jor-/scipy,anntzer/scipy,trankmichael/scipy,jamestwebber/scipy,mtrbean/scipy,sauliusl/scipy,dch312/scipy,minhlongdo/scipy,perimosocordiae/scipy,lhilt/scipy,vanpact/scipy,mgaitan/scipy,mhogg/scipy,matthewalbani/scipy,zaxliu/scipy,jor-/scipy,WillieMaddox/scipy,zerothi/scipy,ales-erjavec/scipy,witcxc/scipy,gfyoung/scipy,e-q/scipy,perimosocordiae/scipy,tylerjereddy/scipy,jor-/scipy,gertingold/scipy,woodscn/scipy,josephcslater/scipy,jor-/scipy,mtrbean/scipy,argriffing/scipy,kleskjr/scipy,cpaulik/scipy,sargas/scipy,raoulbq/scipy,juliantaylor/scipy,bkendzior/scipy,vberaudi/scipy,apbard/scipy,maciejkula/scipy,matthewalbani/scipy,gfyoung/scipy,pizzathief/scipy,cpaulik/scipy,andim/scipy,mortada/scipy,perimosocordiae/scipy,njwilson23/scipy,mhogg/scipy,gdooper/scipy,ChanderG/scipy,ilayn/scipy,surhudm/scipy,nvoron23/scipy,larsmans/scipy,woodscn/scipy,sargas/scipy,rgommers/scipy,josephcslater/scipy,scipy/scipy,fredrikw/scipy,richardotis/scipy,vanpact/scipy,hainm/scipy,mikebenfield/scipy,ndchorley/scipy,mortada/scipy,mdhaber/scipy,kleskjr/scipy,grlee77/scipy,pyramania/scipy,sonnyhu/scipy,sargas/scipy,minhlongdo/scipy,WarrenWeckesser/scipy,larsmans/scipy,ortylp/scipy,mgaitan/scipy,behzadnouri/scipy,sonnyhu/scipy,gertingold/scipy,njwilson23/scipy,zaxliu/scipy,rmcgibbo/scipy,ortylp/scipy,nmayorov/scipy,andim/scipy,andyfaff/scipy,rmcgibbo/scipy,surhudm/scipy,pschella/scipy,sriki18/scipy,sriki18/scipy,argriffing/scipy,raoulbq/scipy,Shaswat27/scipy,zxsted/scipy,mhogg/scipy,Eric89GXL/scipy,Shaswat27/scipy,mortonjt/scipy,petebachant/scipy,endolith/scipy,WillieMaddox/scipy,tylerjereddy/scipy,minhlongdo/scipy,sriki18/scipy,e-q/scipy,mortada/scipy,ales-erjavec/scipy,surhudm/scipy,minhlongdo/scipy,jonycgn/scipy,mortonjt/scipy,matthewalbani/scipy,sonnyhu/scipy,petebachant/scipy,mikebenfield/scipy,haudren/scipy,mortada/scipy,ChanderG/scipy,maciejkula/scipy,chatcannon/scipy,richardotis/scipy,rgommers/scipy,zxsted/scipy,haudren/scipy,pnedunuri/scipy,mdhaber/scipy,perimosocordiae/scipy,pnedunuri/scipy,maniteja123/scipy,petebachant/scipy,aeklant/scipy,vigna/scipy,aeklant/scipy,Newman101/scipy,jseabold/scipy,jseabold/scipy,woodscn/scipy,niknow/scipy,nonhermitian/scipy,mortada/scipy,gef756/scipy,mtrbean/scipy,hainm/scipy,larsmans/scipy,jseabold/scipy,matthew-brett/scipy,mdhaber/scipy,endolith/scipy,witcxc/scipy,pyramania/scipy,maniteja123/scipy,piyush0609/scipy,gef756/scipy,mingwpy/scipy,vberaudi/scipy,felipebetancur/scipy,teoliphant/scipy,anntzer/scipy,lukauskas/scipy,matthew-brett/scipy,sriki18/scipy,jsilter/scipy,dominicelse/scipy,aman-iitj/scipy,vanpact/scipy,fernand/scipy,juliantaylor/scipy,Srisai85/scipy,scipy/scipy,WarrenWeckesser/scipy,aarchiba/scipy,fernand/scipy,hainm/scipy,WillieMaddox/scipy,giorgiop/scipy,juliantaylor/scipy,woodscn/scipy,niknow/scipy,WillieMaddox/scipy,kalvdans/scipy,jonycgn/scipy,behzadnouri/scipy,haudren/scipy,josephcslater/scipy,endolith/scipy,andim/scipy,ales-erjavec/scipy,newemailjdm/scipy,petebachant/scipy,vhaasteren/scipy,maciejkula/scipy,behzadnouri/scipy,argriffing/scipy,maniteja123/scipy,dch312/scipy,Dapid/scipy,behzadnouri/scipy,lukauskas/scipy,mikebenfield/scipy,matthewalbani/scipy,mingwpy/scipy,Kamp9/scipy,ales-erjavec/scipy,njwilson23/scipy,pschella/scipy,fernand/scipy,witcxc/scipy,mingwpy/scipy,ogrisel/scipy,Eric89GXL/scipy,Newman101/scipy,ilayn/scipy,efiring/scipy,woodscn/scipy,pizzathief/scipy,gef756/scipy,dch312/scipy,lukauskas/scipy,ilayn/scipy,pnedunuri/scipy,vhaasteren/scipy,andyfaff/scipy,nvoron23/scipy,jor-/scipy,chatcannon/scipy,andim/scipy,dch312/scipy,aman-iitj/scipy,ortylp/scipy,pschella/scipy,andim/scipy,ales-erjavec/scipy,zerothi/scipy,WarrenWeckesser/scipy,maniteja123/scipy,nmayorov/scipy,gdooper/scipy,ChanderG/scipy,mingwpy/scipy,hainm/scipy,trankmichael/scipy,newemailjdm/scipy,gfyoung/scipy,mikebenfield/scipy,maciejkula/scipy,kalvdans/scipy,Srisai85/scipy,nonhermitian/scipy,mgaitan/scipy,tylerjereddy/scipy,zaxliu/scipy,felipebetancur/scipy,nvoron23/scipy,andyfaff/scipy,dominicelse/scipy,jjhelmus/scipy,gfyoung/scipy,vhaasteren/scipy,gertingold/scipy,chatcannon/scipy,ortylp/scipy,andyfaff/scipy,jseabold/scipy,juliantaylor/scipy,jamestwebber/scipy,surhudm/scipy,cpaulik/scipy,grlee77/scipy,mtrbean/scipy,teoliphant/scipy,aeklant/scipy,jjhelmus/scipy,lhilt/scipy,endolith/scipy,felipebetancur/scipy,perimosocordiae/scipy,pyramania/scipy,ndchorley/scipy,felipebetancur/scipy,newemailjdm/scipy,pyramania/scipy,piyush0609/scipy,andyfaff/scipy,befelix/scipy,aarchiba/scipy,pbrod/scipy,fernand/scipy,efiring/scipy,futurulus/scipy,andim/scipy,scipy/scipy,Stefan-Endres/scipy,grlee77/scipy,mhogg/scipy,FRidh/scipy,Dapid/scipy,befelix/scipy,gdooper/scipy,pbrod/scipy,anielsen001/scipy,niknow/scipy,kleskjr/scipy,newemailjdm/scipy,chatcannon/scipy,sargas/scipy,vberaudi/scipy,anntzer/scipy,ogrisel/scipy,fredrikw/scipy,aman-iitj/scipy,aman-iitj/scipy,apbard/scipy,Gillu13/scipy,larsmans/scipy,Dapid/scipy,matthewalbani/scipy,lhilt/scipy,vberaudi/scipy,fernand/scipy,matthew-brett/scipy,newemailjdm/scipy,matthew-brett/scipy,vhaasteren/scipy,gfyoung/scipy,Shaswat27/scipy,behzadnouri/scipy,fredrikw/scipy,piyush0609/scipy,dominicelse/scipy,surhudm/scipy,Dapid/scipy,mtrbean/scipy,hainm/scipy,Kamp9/scipy,endolith/scipy,mingwpy/scipy,kleskjr/scipy,lukauskas/scipy,minhlongdo/scipy,Dapid/scipy,zxsted/scipy,rmcgibbo/scipy,ilayn/scipy,petebachant/scipy,felipebetancur/scipy,e-q/scipy,scipy/scipy,aman-iitj/scipy,Gillu13/scipy,nonhermitian/scipy,gdooper/scipy,vigna/scipy,ndchorley/scipy,nvoron23/scipy,e-q/scipy,rgommers/scipy,efiring/scipy,giorgiop/scipy,jakevdp/scipy,vigna/scipy,apbard/scipy,WarrenWeckesser/scipy,person142/scipy,giorgiop/scipy,vigna/scipy,giorgiop/scipy,newemailjdm/scipy,jonycgn/scipy,FRidh/scipy,richardotis/scipy,Eric89GXL/scipy,mhogg/scipy,zaxliu/scipy,pizzathief/scipy,anntzer/scipy,FRidh/scipy,grlee77/scipy,bkendzior/scipy,mortonjt/scipy,arokem/scipy,anntzer/scipy,vberaudi/scipy,mortonjt/scipy,anielsen001/scipy,WarrenWeckesser/scipy,WillieMaddox/scipy,woodscn/scipy,efiring/scipy,pnedunuri/scipy,Stefan-Endres/scipy,vigna/scipy,mdhaber/scipy,sonnyhu/scipy,haudren/scipy,mgaitan/scipy,Gillu13/scipy,larsmans/scipy,Newman101/scipy,Stefan-Endres/scipy,ChanderG/scipy,sargas/scipy,tylerjereddy/scipy,aarchiba/scipy,zxsted/scipy,kalvdans/scipy,aarchiba/scipy,richardotis/scipy,bkendzior/scipy,dch312/scipy,surhudm/scipy,sriki18/scipy,Newman101/scipy,zerothi/scipy,sauliusl/scipy,lukauskas/scipy,FRidh/scipy,FRidh/scipy,jseabold/scipy,zerothi/scipy,sauliusl/scipy,teoliphant/scipy,richardotis/scipy,hainm/scipy,maniteja123/scipy,futurulus/scipy,pbrod/scipy,sauliusl/scipy,witcxc/scipy,scipy/scipy,zerothi/scipy,maciejkula/scipy,Gillu13/scipy,ogrisel/scipy,giorgiop/scipy,njwilson23/scipy,scipy/scipy,endolith/scipy,pizzathief/scipy,jjhelmus/scipy,mingwpy/scipy,mortada/scipy,ogrisel/scipy,mdhaber/scipy,dominicelse/scipy,fredrikw/scipy,jakevdp/scipy,sauliusl/scipy,Eric89GXL/scipy,ndchorley/scipy,njwilson23/scipy,vanpact/scipy,jsilter/scipy,jsilter/scipy,pnedunuri/scipy,kalvdans/scipy,Srisai85/scipy,ortylp/scipy,mtrbean/scipy,Newman101/scipy,ChanderG/scipy,zaxliu/scipy,FRidh/scipy,futurulus/scipy,argriffing/scipy,gdooper/scipy,person142/scipy,Kamp9/scipy,mortonjt/scipy,Shaswat27/scipy,niknow/scipy,josephcslater/scipy,maniteja123/scipy,pschella/scipy,Srisai85/scipy,anielsen001/scipy,witcxc/scipy,anielsen001/scipy,zxsted/scipy,bkendzior/scipy,ogrisel/scipy,vanpact/scipy,befelix/scipy,cpaulik/scipy,grlee77/scipy,person142/scipy,argriffing/scipy,Stefan-Endres/scipy,petebachant/scipy,Gillu13/scipy,dominicelse/scipy,sauliusl/scipy,giorgiop/scipy,befelix/scipy,anielsen001/scipy,ndchorley/scipy,jakevdp/scipy,larsmans/scipy,pbrod/scipy,fredrikw/scipy,raoulbq/scipy,kalvdans/scipy,pnedunuri/scipy,nonhermitian/scipy,mgaitan/scipy,Eric89GXL/scipy,vhaasteren/scipy,apbard/scipy,rgommers/scipy,fredrikw/scipy,jsilter/scipy,trankmichael/scipy,jakevdp/scipy,nmayorov/scipy,zaxliu/scipy,arokem/scipy,gertingold/scipy,e-q/scipy,lhilt/scipy,nvoron23/scipy,pyramania/scipy,nvoron23/scipy,argriffing/scipy,piyush0609/scipy,befelix/scipy,haudren/scipy,aman-iitj/scipy,futurulus/scipy,futurulus/scipy,behzadnouri/scipy,andyfaff/scipy,raoulbq/scipy,Kamp9/scipy,Stefan-Endres/scipy,ChanderG/scipy,Eric89GXL/scipy,minhlongdo/scipy,apbard/scipy,ilayn/scipy,kleskjr/scipy,pschella/scipy,jamestwebber/scipy,aeklant/scipy,jonycgn/scipy,anntzer/scipy,piyush0609/scipy,Srisai85/scipy,Gillu13/scipy,niknow/scipy,Kamp9/scipy,jseabold/scipy,sonnyhu/scipy,futurulus/scipy,cpaulik/scipy,trankmichael/scipy,person142/scipy,matthew-brett/scipy,bkendzior/scipy,sriki18/scipy,tylerjereddy/scipy,jonycgn/scipy,kleskjr/scipy,niknow/scipy,jjhelmus/scipy,lhilt/scipy,Shaswat27/scipy,perimosocordiae/scipy,cpaulik/scipy,vanpact/scipy,efiring/scipy,josephcslater/scipy,arokem/scipy,felipebetancur/scipy,richardotis/scipy,chatcannon/scipy