fix(metadata): match by primary artist and review results #511

test/artist_utils_test.dart

@@ -0,0 +1,24 @@
+import 'package:flutter_test/flutter_test.dart';
+import 'package:spotiflac_android/utils/artist_utils.dart';
+
+void main() {
+  test('primary artist prefers the first album artist', () {
+    expect(
+      primaryArtistName(
+        'Track Artist, Guest Artist',
+        albumArtist: 'Album Artist & Collaborator',
+      ),
+      'Album Artist',
+    );
+  });
+
+  test('primary artist handles provider separator variants', () {
+    expect(primaryArtistName('One; Two & Three'), 'One');
+    expect(primaryArtistName('One feat. Two'), 'One');
+    expect(primaryArtistName('AC/DC'), 'AC/DC');
+    expect(
+      primaryArtistName('Actual Artist, Guest', albumArtist: 'Various Artists'),
+      'Actual Artist',
+    );
+  });
+}