diff --git a/app/Models/SongZipArchive.php b/app/Models/SongZipArchive.php
index a3944e83..d2300a87 100644
--- a/app/Models/SongZipArchive.php
+++ b/app/Models/SongZipArchive.php
@@ -123,4 +123,12 @@ class SongZipArchive
     {
         return $this->path;
     }
+
+    /**
+     * @return ZipArchive
+     */
+    public function getArchive()
+    {
+        return $this->archive;
+    }
 }
diff --git a/tests/Unit/SongZipArchiveTest.php b/tests/Unit/SongZipArchiveTest.php
new file mode 100644
index 00000000..fe5f002a
--- /dev/null
+++ b/tests/Unit/SongZipArchiveTest.php
@@ -0,0 +1,64 @@
+<?php
+
+namespace Tests\Unit;
+
+use App\Models\Song;
+use App\Models\SongZipArchive;
+use Tests\TestCase;
+
+class SongZipArchiveTest extends TestCase
+{
+    /** @test */
+    public function it_can_be_instantiated()
+    {
+        $songZipArchive = new SongZipArchive();
+        $this->assertInstanceOf(SongZipArchive::class, $songZipArchive);
+        $this->assertInstanceOf(\ZipArchive::class, $songZipArchive->getArchive());
+    }
+
+    /** @test */
+    public function a_song_can_be_added_into_an_archive()
+    {
+        // Given a song
+        $song = factory(Song::class)->create([
+            'path' => realpath(__DIR__.'/../songs/full.mp3'),
+        ]);
+
+        // When I add the song into the archive
+        $songArchive = new SongZipArchive();
+        $songArchive->addSong($song);
+
+        // Then I see the archive contains one file
+        $archive = $songArchive->getArchive();
+        $this->assertEquals(1, $archive->numFiles);
+
+        // and the file is our song
+        $this->assertEquals('full.mp3', $archive->getNameIndex(0));
+    }
+
+    /** @test */
+    public function multiple_songs_can_be_added_into_an_archive()
+    {
+        // Given some songs
+        $songs = collect([
+            factory(Song::class)->create([
+                'path' => realpath(__DIR__.'/../songs/full.mp3'),
+            ]),
+            factory(Song::class)->create([
+                'path' => realpath(__DIR__.'/../songs/lorem.mp3'),
+            ])
+        ]);
+
+        // When I add the songs into the archive
+        $songArchive = new SongZipArchive();
+        $songArchive->addSongs($songs);
+
+        // Then I see the archive contains two files
+        $archive = $songArchive->getArchive();
+        $this->assertEquals(2, $archive->numFiles);
+
+        // and the files are our songs
+        $this->assertEquals('full.mp3', $archive->getNameIndex(0));
+        $this->assertEquals('lorem.mp3', $archive->getNameIndex(1));
+    }
+}