Add test_next_track_empty_playlist
Add test_next_track_empty_playlist

jcass77/mopidy,ali/mopidy,ali/mopidy,swak/mopidy,diandiankan/mopidy,kingosticks/mopidy,abarisain/mopidy,hkariti/mopidy,ZenithDK/mopidy,jodal/mopidy,mokieyue/mopidy,bencevans/mopidy,dbrgn/mopidy,hkariti/mopidy,swak/mopidy,pacificIT/mopidy,priestd09/mopidy,hkariti/mopidy,glogiotatidis/mopidy,SuperStarPL/mopidy,priestd09/mopidy,ZenithDK/mopidy,mokieyue/mopidy,tkem/mopidy,dbrgn/mopidy,mopidy/mopidy,quartz55/mopidy,SuperStarPL/mopidy,jodal/mopidy,bencevans/mopidy,bacontext/mopidy,glogiotatidis/mopidy,jmarsik/mopidy,abarisain/mopidy,priestd09/mopidy,rawdlite/mopidy,dbrgn/mopidy,pacificIT/mopidy,rawdlite/mopidy,mokieyue/mopidy,jmarsik/mopidy,jodal/mopidy,bacontext/mopidy,liamw9534/mopidy,vrs01/mopidy,vrs01/mopidy,SuperStarPL/mopidy,hkariti/mopidy,diandiankan/mopidy,mokieyue/mopidy,vrs01/mopidy,tkem/mopidy,tkem/mopidy,quartz55/mopidy,glogiotatidis/mopidy,diandiankan/mopidy,woutervanwijk/mopidy,bencevans/mopidy,quartz55/mopidy,swak/mopidy,SuperStarPL/mopidy,vrs01/mopidy,swak/mopidy,diandiankan/mopidy,mopidy/mopidy,ZenithDK/mopidy,kingosticks/mopidy,bacontext/mopidy,jcass77/mopidy,ali/mopidy,liamw9534/mopidy,adamcik/mopidy,ZenithDK/mopidy,rawdlite/mopidy,mopidy/mopidy,ali/mopidy,kingosticks/mopidy,bacontext/mopidy,jcass77/mopidy,bencevans/mopidy,glogiotatidis/mopidy,adamcik/mopidy,pacificIT/mopidy,woutervanwijk/mopidy,tkem/mopidy,rawdlite/mopidy,jmarsik/mopidy,adamcik/mopidy,quartz55/mopidy,jmarsik/mopidy,pacificIT/mopidy,dbrgn/mopidy