feat: included tests

test/game/components/board_test.dart

@@ -100,6 +100,18 @@ void main() {
           expect(roundBumpers.length, equals(3));
         },
       );
+
+      flameTester.test(
+        'has one ChromeDino',
+        (game) async {
+          final board = Board();
+          await game.ready();
+          await game.ensureAdd(board);
+
+          final roundBumpers = board.descendants().whereType<ChromeDino>();
+          expect(roundBumpers.length, equals(1));
+        },
+      );
     });
   });
 }

test/game/components/chrome_dino_test.dart

@@ -1,5 +1,23 @@
+import 'package:flame_forge2d/flame_forge2d.dart';
+import 'package:flame_test/flame_test.dart';
 import 'package:flutter_test/flutter_test.dart';
+import 'package:pinball/game/game.dart';
 
 void main() {
-  group('ChromeDino', () {});
+  TestWidgetsFlutterBinding.ensureInitialized();
+  final flameTester = FlameTester(Forge2DGame.new);
+
+  group('ChromeDino', () {
+    flameTester.test(
+      'loads correctly',
+      (game) async {
+        final chromeDino = ChromeDino();
+
+        await game.ready();
+        await game.ensureAdd(chromeDino);
+
+        expect(game.contains(chromeDino), isTrue);
+      },
+    );
+  });
 }