diff --git a/src/Adapter/SongScanner.php b/src/Adapter/SongScanner.php
index d036399..130ff38 100644
--- a/src/Adapter/SongScanner.php
+++ b/src/Adapter/SongScanner.php
@@ -23,7 +23,7 @@ class SongScanner
     /**
      * @return ScannedSong[]
      */
-    public function scanFunctional(): array {
+    public function scan(): array {
         $it = new RecursiveDirectoryIterator(
             $this->rootDir,
             FilesystemIterator::FOLLOW_SYMLINKS | FilesystemIterator::SKIP_DOTS
@@ -35,7 +35,6 @@ class SongScanner
 
     public static function isMp3(iterable $files): iterable {
         return filter(function (SplFileInfo $file, string $_): bool {
-            echo $_ . "\n";
             return $file->isFile() && strtolower($file->getExtension()) === 'mp3';
         }, $files);
     }
diff --git a/tests/Adapter/SongScannerTest.php b/tests/Adapter/SongScannerTest.php
index 2b1a621..be2862e 100644
--- a/tests/Adapter/SongScannerTest.php
+++ b/tests/Adapter/SongScannerTest.php
@@ -2,15 +2,24 @@
 
 namespace App\Tests\Adapter;
 
+use App\Adapter\ScannedSong;
 use App\Adapter\SongScanner;
 use PHPUnit\Framework\TestCase;
+use function Lambdish\Phunctional\map;
 
 class SongScannerTest extends TestCase
 {
 
     function testDefaultBehaviourFunctional() {
         $scanner = new SongScanner(__DIR__);
-        $songs = $scanner->scanFunctional();
-        var_dump($songs);
+        $songs = $scanner->scan();
+
+        $this->assertCount(5, $songs);
+
+        $combinations = map(fn(ScannedSong $song) => [$song->artist, $song->album, $song->title], $songs);
+        $this->assertContains(['Band A', 'Album A', 'Song 1'], $combinations);
+        $this->assertContains(['Band A', 'Album A', 'Song 2'], $combinations);
+        $this->assertContains(['Band A', 'Album B', 'Song 1'], $combinations);
+        $this->assertContains(['Band B', 'Album A', 'Song 1'], $combinations);
     }
 }