Add javascript tests for Channel.onError
Add javascript tests for Channel.onError

pap/phoenix,ericmj/phoenix,0x00evil/phoenix,mitchellhenke/phoenix,Gazler/phoenix,evax/phoenix,gjaldon/phoenix,mschae/phoenix,ybur-yug/phoenix,stevedomin/phoenix,dmarkow/phoenix,rafbgarcia/phoenix,pap/phoenix,CultivateHQ/phoenix,mobileoverlord/phoenix,Joe-noh/phoenix,jamilabreu/phoenix,trarbr/phoenix,Ben-Evolently/phoenix,bsmr-erlang/phoenix,phoenixframework/phoenix,korobkov/phoenix,michalmuskala/phoenix,nshafer/phoenix,evax/phoenix,keathley/phoenix,michalmuskala/phoenix,0x00evil/phoenix,Joe-noh/phoenix,0x00evil/phoenix,phoenixframework/phoenix,keathley/phoenix,stevedomin/phoenix,gjaldon/phoenix,nshafer/phoenix,iStefo/phoenix,CultivateHQ/phoenix,optikfluffel/phoenix,jwarwick/phoenix,korobkov/phoenix,trarbr/phoenix,bsmr-erlang/phoenix,Gazler/phoenix,cas27/phoenix,nshafer/phoenix,Kosmas/phoenix,mschae/phoenix,ybur-yug/phoenix,mitchellhenke/phoenix,optikfluffel/phoenix,phoenixframework/phoenix,rafbgarcia/phoenix,cas27/phoenix,jamilabreu/phoenix,eksperimental/phoenix,ericmj/phoenix,rafbgarcia/phoenix,dmarkow/phoenix,jwarwick/phoenix,eksperimental/phoenix,mobileoverlord/phoenix,iStefo/phoenix,Kosmas/phoenix,optikfluffel/phoenix