change assertGreater to assertGreaterEqual in some tests (#679)

tests/integration/test_user_endpoints.py

@@ -237,9 +237,8 @@ class SpotipyLibraryApiTests(unittest.TestCase):
             self.spotify.track('BadID123')
 
     def test_current_user_saved_tracks(self):
-        # TODO make this not fail if someone doesnthave saved tracks
         tracks = self.spotify.current_user_saved_tracks()
-        self.assertGreater(len(tracks['items']), 0)
+        self.assertGreaterEqual(len(tracks['items']), 0)
 
     def test_current_user_save_and_unsave_tracks(self):
         tracks = self.spotify.current_user_saved_tracks()
@@ -324,7 +323,7 @@ class SpotipyUserApiTests(unittest.TestCase):
     def test_current_user_top_tracks(self):
         response = self.spotify.current_user_top_tracks()
         items = response['items']
-        self.assertGreater(len(items), 0)
+        self.assertGreaterEqual(len(items), 0)
 
     def test_current_user_top_artists(self):
         response = self.spotify.current_user_top_artists()
@@ -390,7 +389,7 @@ class SpotipyFollowApiTests(unittest.TestCase):
     def test_current_user_follows(self):
         response = self.spotify.current_user_followed_artists()
         artists = response['artists']
-        self.assertGreater(len(artists['items']), 0)
+        self.assertGreaterEqual(len(artists['items']), 0)
 
     def test_user_follows_and_unfollows_artist(self):
         # Initially follows 1 artist