diff --git a/packages/pinball_components/test/src/extensions/score_test.dart b/packages/pinball_components/test/src/extensions/score_test.dart
new file mode 100644
index 00000000..d8546ea1
--- /dev/null
+++ b/packages/pinball_components/test/src/extensions/score_test.dart
@@ -0,0 +1,10 @@
+import 'package:flutter_test/flutter_test.dart';
+import 'package:pinball_components/pinball_components.dart';
+
+void main() {
+  group('ScoreX', () {
+    test('formatScore correctly formats int', () {
+      expect(1000000.formatScore(), '1,000,000');
+    });
+  });
+}