diff --git a/tests/backends/base/tracklist.py b/tests/backends/base/tracklist.py
index 33991f2a..f1786ef9 100644
--- a/tests/backends/base/tracklist.py
+++ b/tests/backends/base/tracklist.py
@@ -128,13 +128,15 @@ class TracklistControllerTest(object):
     @populate_tracklist
     def test_next_track_before_play(self):
         tl_track = self.playback.current_tl_track
-        self.assertEqual(self.tracklist.next_track(tl_track), self.tl_tracks[0])
+        self.assertEqual(self.tracklist.next_track(tl_track),
+                         self.tl_tracks[0])
 
     @populate_tracklist
     def test_next_track_during_play(self):
         self.playback.play()
         tl_track = self.playback.current_tl_track
-        self.assertEqual(self.tracklist.next_track(tl_track), self.tl_tracks[1])
+        self.assertEqual(self.tracklist.next_track(tl_track),
+                         self.tl_tracks[1])
 
     @populate_tracklist
     def test_next_track_after_previous(self):
@@ -142,7 +144,8 @@ class TracklistControllerTest(object):
         self.playback.next()
         self.playback.previous()
         tl_track = self.playback.current_tl_track
-        self.assertEqual(self.tracklist.next_track(tl_track), self.tl_tracks[1])
+        self.assertEqual(self.tracklist.next_track(tl_track),
+                         self.tl_tracks[1])
 
     def test_next_track_empty_playlist(self):
         tl_track = self.playback.current_tl_track
@@ -163,14 +166,16 @@ class TracklistControllerTest(object):
         for _ in self.tracks[1:]:
             self.playback.next()
         tl_track = self.playback.current_tl_track
-        self.assertEqual(self.tracklist.next_track(tl_track), self.tl_tracks[0])
+        self.assertEqual(self.tracklist.next_track(tl_track),
+                         self.tl_tracks[0])
 
     @populate_tracklist
     def test_next_track_with_random(self):
         random.seed(1)
         self.tracklist.random = True
         tl_track = self.playback.current_tl_track
-        self.assertEqual(self.tracklist.next_track(tl_track), self.tl_tracks[2])
+        self.assertEqual(self.tracklist.next_track(tl_track),
+                         self.tl_tracks[2])
 
     @populate_tracklist
     def test_next_with_consume(self):
@@ -201,21 +206,25 @@ class TracklistControllerTest(object):
         random.seed(1)
         self.tracklist.random = True
         tl_track = self.playback.current_tl_track
-        self.assertEqual(self.tracklist.next_track(tl_track), self.tl_tracks[2])
+        self.assertEqual(self.tracklist.next_track(tl_track),
+                         self.tl_tracks[2])
         self.tracklist.add(self.tracks[:1])
         tl_track = self.playback.current_tl_track
-        self.assertEqual(self.tracklist.next_track(tl_track), self.tl_tracks[1])
+        self.assertEqual(self.tracklist.next_track(tl_track),
+                         self.tl_tracks[1])
 
     @populate_tracklist
     def test_end_of_track_track_before_play(self):
         tl_track = self.playback.current_tl_track
-        self.assertEqual(self.tracklist.next_track(tl_track), self.tl_tracks[0])
+        self.assertEqual(self.tracklist.next_track(tl_track),
+                         self.tl_tracks[0])
 
     @populate_tracklist
     def test_end_of_track_track_during_play(self):
         self.playback.play()
         tl_track = self.playback.current_tl_track
-        self.assertEqual(self.tracklist.next_track(tl_track), self.tl_tracks[1])
+        self.assertEqual(self.tracklist.next_track(tl_track),
+                         self.tl_tracks[1])
 
     @populate_tracklist
     def test_end_of_track_track_after_previous(self):
@@ -223,7 +232,8 @@ class TracklistControllerTest(object):
         self.playback.on_end_of_track()
         self.playback.previous()
         tl_track = self.playback.current_tl_track
-        self.assertEqual(self.tracklist.next_track(tl_track), self.tl_tracks[1])
+        self.assertEqual(self.tracklist.next_track(tl_track),
+                         self.tl_tracks[1])
 
     def test_end_of_track_track_empty_playlist(self):
         tl_track = self.playback.current_tl_track
@@ -244,14 +254,16 @@ class TracklistControllerTest(object):
         for _ in self.tracks[1:]:
             self.playback.on_end_of_track()
         tl_track = self.playback.current_tl_track
-        self.assertEqual(self.tracklist.next_track(tl_track), self.tl_tracks[0])
+        self.assertEqual(self.tracklist.next_track(tl_track),
+                         self.tl_tracks[0])
 
     @populate_tracklist
     def test_end_of_track_track_with_random(self):
         random.seed(1)
         self.tracklist.random = True
         tl_track = self.playback.current_tl_track
-        self.assertEqual(self.tracklist.next_track(tl_track), self.tl_tracks[2])
+        self.assertEqual(self.tracklist.next_track(tl_track),
+                         self.tl_tracks[2])
 
     @populate_tracklist
     def test_end_of_track_with_consume(self):
@@ -274,10 +286,12 @@ class TracklistControllerTest(object):
         random.seed(1)
         self.tracklist.random = True
         tl_track = self.playback.current_tl_track
-        self.assertEqual(self.tracklist.next_track(tl_track), self.tl_tracks[2])
+        self.assertEqual(self.tracklist.next_track(tl_track),
+                         self.tl_tracks[2])
         self.tracklist.add(self.tracks[:1])
         tl_track = self.playback.current_tl_track
-        self.assertEqual(self.tracklist.next_track(tl_track), self.tl_tracks[1])
+        self.assertEqual(self.tracklist.next_track(tl_track),
+                         self.tl_tracks[1])
 
     @populate_tracklist
     def test_previous_track_before_play(self):
@@ -295,7 +309,8 @@ class TracklistControllerTest(object):
         self.playback.play()
         self.playback.next()
         tl_track = self.playback.current_tl_track
-        self.assertEqual(self.tracklist.previous_track(tl_track), self.tl_tracks[0])
+        self.assertEqual(self.tracklist.previous_track(tl_track),
+                         self.tl_tracks[0])
 
     @populate_tracklist
     def test_previous_track_after_previous(self):
@@ -304,7 +319,8 @@ class TracklistControllerTest(object):
         self.playback.next()  # At track 2
         self.playback.previous()  # At track 1
         tl_track = self.playback.current_tl_track
-        self.assertEqual(self.tracklist.previous_track(tl_track), self.tl_tracks[0])
+        self.assertEqual(self.tracklist.previous_track(tl_track),
+                         self.tl_tracks[0])
 
     def test_previous_track_empty_playlist(self):
         tl_track = self.playback.current_tl_track