feat: pr suggestions

lib/game/view/game_hud.dart

@@ -26,11 +26,12 @@ class GameHud extends StatelessWidget {
             '${state.score}',
             style: Theme.of(context).textTheme.headline3,
           ),
-          Column(
+          Wrap(
+            direction: Axis.vertical,
             children: [
               for (var i = 0; i < state.balls; i++)
                 const Padding(
-                  padding: EdgeInsets.only(top: 6),
+                  padding: EdgeInsets.only(top: 6, right: 6),
                   child: CircleAvatar(
                     radius: 8,
                     backgroundColor: Colors.black,

test/game/view/game_hud_test.dart

@@ -8,25 +8,72 @@ import '../../helpers/helpers.dart';
 
 void main() {
   group('GameHud', () {
+    late GameBloc gameBloc;
+    const initialState = GameState(score: 10, balls: 2);
+
+    void _mockState(GameState state) {
+      whenListen(
+        gameBloc,
+        Stream.value(state),
+        initialState: state,
+      );
+    }
+
+    Future<void> _pumpHud(WidgetTester tester) async {
+      await tester.pumpApp(
+        GameHud(),
+        gameBloc: gameBloc,
+      );
+    }
+
+    setUp(() {
+      gameBloc = MockGameBloc();
+      _mockState(initialState);
+    });
+
     testWidgets(
-      'renders the current score and balls',
+      'renders the current score',
       (tester) async {
-        final state = GameState(score: 10, balls: 2);
+        await _pumpHud(tester);
-        final gameBloc = MockGameBloc();
+        expect(find.text(initialState.score.toString()), findsOneWidget);
-        whenListen(
+      },
-          gameBloc,
+    );
-          Stream.value(state),
-          initialState: state,
-        );
 
-        await tester.pumpApp(
+    testWidgets(
-          GameHud(),
+      'renders the current ball number',
-          gameBloc: gameBloc,
+      (tester) async {
+        await _pumpHud(tester);
+        expect(
+          find.byType(CircleAvatar),
+          findsNWidgets(initialState.balls),
         );
-
-        expect(find.text('10'), findsOneWidget);
-        expect(find.byType(CircleAvatar), findsNWidgets(2));
       },
     );
+
+    testWidgets('updates the score', (tester) async {
+      await _pumpHud(tester);
+      expect(find.text(initialState.score.toString()), findsOneWidget);
+
+      _mockState(initialState.copyWith(score: 20));
+
+      await tester.pump();
+      expect(find.text('20'), findsOneWidget);
+    });
+
+    testWidgets('updates the ball number', (tester) async {
+      await _pumpHud(tester);
+      expect(
+        find.byType(CircleAvatar),
+        findsNWidgets(initialState.balls),
+      );
+
+      _mockState(initialState.copyWith(balls: 1));
+
+      await tester.pump();
+      expect(
+        find.byType(CircleAvatar),
+        findsNWidgets(1),
+      );
+    });
   });
 }