Add implementation of test_playlist_position_at_end_of_playlist
Add implementation of test_playlist_position_at_end_of_playlist

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