Update test_end_of_track_callback_gets_called to check that end_of_track is in core_queue
Update test_end_of_track_callback_gets_called to check that end_of_track is in core_queue

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