Include roots for resources in rabl index views

spec/integration/api/tracks_spec.rb

@@ -8,26 +8,30 @@ describe 'API tracks' do
     track_2 = create :track, name: 'Track 2'
     get api_tracks_path, format: :json
 
-    expect(json).to eq [
-      {
-        id:         track_1.id,
-        name:       'Track 1',
-        sound_url:  api_sound_url(track_1.sound)
-      },
-      {
-        id:         track_2.id,
-        name:       'Track 2'
-      }
-    ]
+    expect(json).to eq(
+      tracks: [
+        {
+          id:         track_1.id,
+          name:       'Track 1',
+          sound_url:  api_sound_url(track_1.sound)
+        },
+        {
+          id:         track_2.id,
+          name:       'Track 2'
+        }
+      ]
+    )
   end
 
   it 'shows a track' do
     track = create :track
     get api_track_path track, format: :json
 
-    expect(json).to match(
-      id:   track.id,
-      name: track.name
+    expect(json).to eq(
+      track: {
+        id:   track.id,
+        name: track.name
+      }
     )
   end
 end