diff --git a/internal/data/song_test.go b/internal/data/song_test.go
index fb4b7bf..edb396c 100644
--- a/internal/data/song_test.go
+++ b/internal/data/song_test.go
@@ -4,7 +4,7 @@ import (
 	"testing"
 )
 
-func TestSong(t *testing.T) {
+func TestSongDeduplicate(t *testing.T) {
 	song := Song{
 		Name: "song_a",
 		Album: Album{
@@ -16,8 +16,8 @@ func TestSong(t *testing.T) {
 			},
 		},
 		Artists: []Artist{
-			{Name: "artist_a"},
-			{Name: "artist_a"},
+			{Name: "artist a"},
+			{Name: "artist    a"},
 			{Name: "artist_b"},
 		},
 	}
@@ -32,3 +32,61 @@ func TestSong(t *testing.T) {
 		t.Errorf(`the two artists with the same names in the album have to be merged, %d`, len(compiled.Album.Artists))
 	}
 }
+
+func TestSongUnify(t *testing.T) {
+	song := Song{
+		Name: "          foo  Bar  BAZ",
+		Album: Album{
+			Name: " foo",
+		},
+	}
+
+	compiled := song.Compile().(Song)
+
+	if compiled.UnifiedName != "foo bar baz" {
+		t.Errorf(`the song name doesn't get compiled properly`)
+	}
+
+	if compiled.Album.UnifiedName != "foo" {
+		t.Errorf(`the album name in the song isn't unified`)
+	}
+}
+
+func TestAlbumDeduplicate(t *testing.T) {
+	album := Album{
+		Name: "album_a",
+		Songs: []Song{
+			{Name: "song a"},
+			{Name: "song  a"},
+			{Name: "song_b"},
+			{Name: "song_c"},
+			{Name: "song_d"},
+			{Name: "song a"},
+		},
+		Artists: []Artist{
+			{Name: "artist_a"},
+			{
+				Name: "artist_a",
+				Albums: []Album{
+					{Name: "album_a"},
+					{Name: "album_b"},
+					{Name: "album_a"},
+				},
+			},
+		},
+	}
+
+	compiled := album.Compile().(Album)
+
+	if len(compiled.Songs) != 4 {
+		t.Errorf(`didn't properly merge songs`)
+	}
+
+	if len(compiled.Artists) != 1 {
+		t.Errorf(`didn't properly merge artists`)
+	}
+
+	if len(compiled.Artists[0].Albums) != 2 {
+		t.Errorf(`didn't properly merge or deduplicate albums`)
+	}
+}