Unit tests: add `nvm_has`
Unit tests: add `nvm_has`
jaawerth/nvm,jhliberty/nvm,elrasguno/nvm,Kuzirashi/nvm,NicCollins/nvm,williamboman/nvm,lukechilds/nvm,LeeLovCY/nvm,woss/nvm,christophercaburog/nvm,pmq20/nvm,domenicosolazzo/nvm,LeeLovCY/nvm,Richardphp/nvm,kmctown/nvm,Ingelheim/nvm,evocateur/nvm,psychoss/nvm,parasaro92/nvm,WY08271/nvm,pmq20/nvm,tlevine/nvm,wahyutaufik/nvm,cjac/nvm,youleiy/nvm,jaawerth/nvm,icyflame/nvm,dfackler/nvm,thomasf/nvm,ljharb/nvm,PeterDaveHelloKitchen/nvm,elrasguno/nvm,slariviere/nvm,psychoss/nvm,greyhwndz/nvm,mmorejon/nvm,owen-it/nvm,mirydz/nvm,CristianCantoro/nvm,IonicaBizauKitchen/nvm,scq000/nvm,edwmurph/nvm,Theodeus/nvm,misterdjules/nvm,CristianCantoro/nvm,joneit/nvm,vinaykaradia/clone-nvm,JanChw/nvm,WY08271/nvm,wskplho/nvm,DigitallySeamless/nvm,wahyutaufik/nvm,creationix/nvm,sjfkai/nvm,kumaria/nvm,bbuck/nvm,JasonChrYoung/nvm,evocateur/nvm,diegofcb10/nvm,dfackler/nvm,SampleLiao/nvm,nontage24/nvm,greyhwndz/nvm,modulexcite/nvm,Richardphp/nvm,parasaro92/nvm,gtdeng/nvm,tlevine/nvm,egilkh/nvm,scq000/nvm,nontage24/nvm,IonicaBizauKitchen/nvm,PeterDaveHelloKitchen/nvm,mirydz/nvm,PeterDaveHello/nvm,owen-it/nvm,thomasf/nvm,michael-ni/nvm,bevacqua/nvm,hanhailong/nvm,wskplho/nvm,tianzhihen/nvm,SampleLiao/nvm,icyflame/nvm,joneit/nvm,reybango/nvm,Salahudeen/nvm,hanhailong/nvm,hkdobrev/nvm,DigitallySeamless/nvm,kmctown/nvm,gtdeng/nvm,domenicosolazzo/nvm,hkdobrev/nvm,kumaria/nvm,ljharb/nvm,modulexcite/nvm,woss/nvm,slariviere/nvm,tianzhihen/nvm,cirosantilli/nvm,diegofcb10/nvm,misterdjules/nvm,Theodeus/nvm,lukechilds/nvm,fnogatz/swivm,PeterDaveHello/nvm,JasonChrYoung/nvm,Kuzirashi/nvm,cnpm/nvm,cirosantilli/nvm,Salahudeen/nvm,vinaykaradia/clone-nvm,egilkh/nvm,JanChw/nvm,creationix/nvm,cjac/nvm,edwmurph/nvm,michael-ni/nvm,chinazhaghai/nvm,devedbox/nvm,jbergstroem/nvm,jbergstroem/nvm,williamboman/nvm,reybango/nvm,devedbox/nvm,bbuck/nvm,jhliberty/nvm,bevacqua/nvm,christophercaburog/nvm,cnpm/nvm,mmorejon/nvm,Ingelheim/nvm,youleiy/nvm,chinazhaghai/nvm