test: golden tests for ramp arrow

packages/pinball_components/lib/src/components/spaceship_ramp/spaceship_ramp.dart

@@ -53,7 +53,7 @@ class SpaceshipRamp extends Component {
             _SpaceshipRampForegroundRailing(),
             _SpaceshipRampBase()..initialPosition = Vector2(1.7, -20),
             _SpaceshipRampBackgroundRailingSpriteComponent(),
-            _SpaceshipRampArrowSpriteComponent(
+            SpaceshipRampArrowSpriteComponent(
               current: bloc.state.hits,
             ),
             ...?children,
@@ -183,10 +183,11 @@ class _SpaceshipRampBackgroundRampSpriteComponent extends SpriteComponent
 ///
 /// Lights progressively whenever a [Ball] gets into [SpaceshipRamp].
 /// {@endtemplate}
-class _SpaceshipRampArrowSpriteComponent extends SpriteGroupComponent<int>
+@visibleForTesting
+class SpaceshipRampArrowSpriteComponent extends SpriteGroupComponent<int>
     with HasGameRef, ParentIsA<SpaceshipRamp>, ZIndex {
   /// {@macro spaceship_ramp_arrow_sprite_component}
-  _SpaceshipRampArrowSpriteComponent({
+  SpaceshipRampArrowSpriteComponent({
     required int current,
   }) : super(
           anchor: Anchor.center,

packages/pinball_components/test/src/components/spaceship_ramp/spaceship_ramp_test.dart

@@ -52,8 +52,12 @@ void main() {
 
           await tester.pump();
 
+          final index = ramp.children
+              .whereType<SpaceshipRampArrowSpriteComponent>()
+              .first
+              .current;
           expect(
-            ramp.children.whereType<SpriteGroupComponent>().first.current,
+            SpaceshipRampArrowSpriteState.values[index!],
             SpaceshipRampArrowSpriteState.inactive,
           );
 
@@ -76,10 +80,16 @@ void main() {
           await game.ensureAdd(canvas);
 
           ramp.bloc.onBallInside();
+
+          await game.ready();
           await tester.pump();
 
+          final index = ramp.children
+              .whereType<SpaceshipRampArrowSpriteComponent>()
+              .first
+              .current;
           expect(
-            ramp.children.whereType<SpriteGroupComponent>().first.current,
+            SpaceshipRampArrowSpriteState.values[index!],
             SpaceshipRampArrowSpriteState.active1,
           );
 
@@ -105,10 +115,15 @@ void main() {
             ..onBallInside()
             ..onBallInside();
 
+          await game.ready();
           await tester.pump();
 
+          final index = ramp.children
+              .whereType<SpaceshipRampArrowSpriteComponent>()
+              .first
+              .current;
           expect(
-            ramp.children.whereType<SpriteGroupComponent>().first.current,
+            SpaceshipRampArrowSpriteState.values[index!],
             SpaceshipRampArrowSpriteState.active2,
           );
 
@@ -135,10 +150,15 @@ void main() {
             ..onBallInside()
             ..onBallInside();
 
+          await game.ready();
           await tester.pump();
 
+          final index = ramp.children
+              .whereType<SpaceshipRampArrowSpriteComponent>()
+              .first
+              .current;
           expect(
-            ramp.children.whereType<SpriteGroupComponent>().first.current,
+            SpaceshipRampArrowSpriteState.values[index!],
             SpaceshipRampArrowSpriteState.active3,
           );
 
@@ -166,10 +186,15 @@ void main() {
             ..onBallInside()
             ..onBallInside();
 
+          await game.ready();
           await tester.pump();
 
+          final index = ramp.children
+              .whereType<SpaceshipRampArrowSpriteComponent>()
+              .first
+              .current;
           expect(
-            ramp.children.whereType<SpriteGroupComponent>().first.current,
+            SpaceshipRampArrowSpriteState.values[index!],
             SpaceshipRampArrowSpriteState.active4,
           );
 
@@ -198,10 +223,15 @@ void main() {
             ..onBallInside()
             ..onBallInside();
 
+          await game.ready();
           await tester.pump();
 
+          final index = ramp.children
+              .whereType<SpaceshipRampArrowSpriteComponent>()
+              .first
+              .current;
           expect(
-            ramp.children.whereType<SpriteGroupComponent>().first.current,
+            SpaceshipRampArrowSpriteState.values[index!],
             SpaceshipRampArrowSpriteState.active5,
           );