feat: updated tests

packages/pinball_components/test/src/components/camera_zoom_test.dart

@@ -17,7 +17,7 @@ void main() {
         game.camera.followVector2(Vector2.zero());
         game.camera.zoom = 10;
         final sprite = await game.loadSprite(
-          Assets.images.flutterSignPost.keyName,
+          Assets.images.signPost.inactive.keyName,
         );
 
         await game.add(

packages/pinball_components/test/src/components/flutter_sign_post_test.dart

@@ -1,39 +1,128 @@
 // ignore_for_file: cascade_invocations
 
-import 'package:flame_forge2d/flame_forge2d.dart';
+import 'package:flame/components.dart';
 import 'package:flame_test/flame_test.dart';
 import 'package:flutter_test/flutter_test.dart';
 import 'package:pinball_components/pinball_components.dart';
 
 import '../../helpers/helpers.dart';
 
+// TODO(alisonryan): Refactor loading assets in test with
+// https://github.com/VGVentures/pinball/pull/204
+
 void main() {
   TestWidgetsFlutterBinding.ensureInitialized();
   final flameTester = FlameTester(TestGame.new);
 
   group('FlutterSignPost', () {
+    final assets = [
+      Assets.images.signPost.inactive.keyName,
+      Assets.images.signPost.active1.keyName,
+      Assets.images.signPost.active2.keyName,
+      Assets.images.signPost.active3.keyName,
+    ];
+
+    flameTester.test(
+      'loads correctly',
+      (game) async {
+        await game.images.loadAll(assets);
+        final flutterSignPost = FlutterSignPost();
+        await game.ready();
+        await game.ensureAdd(flutterSignPost);
+
+        expect(game.contains(flutterSignPost), isTrue);
+      },
+    );
+
+    group('renders correctly', () {
       flameTester.testGameWidget(
-      'renders correctly',
+        'inactive sprite',
         setUp: (game, tester) async {
+          await game.images.loadAll(assets);
           await game.ensureAdd(FlutterSignPost());
           game.camera.followVector2(Vector2.zero());
         },
         verify: (game, tester) async {
           await expectLater(
             find.byGame<TestGame>(),
-          matchesGoldenFile('golden/flutter-sign-post.png'),
+            matchesGoldenFile('golden/flutter-sign-post__inactive.png'),
+          );
+        },
+      );
+
+      flameTester.testGameWidget(
+        'active1 sprite',
+        setUp: (game, tester) async {
+          await game.images.loadAll(assets);
+          await game.ensureAdd(FlutterSignPost()..progress());
+          game.camera.followVector2(Vector2.zero());
+        },
+        verify: (game, tester) async {
+          await expectLater(
+            find.byGame<TestGame>(),
+            matchesGoldenFile('golden/flutter-sign-post__active1.png'),
+          );
+        },
+      );
+
+      flameTester.testGameWidget(
+        'active2 sprite',
+        setUp: (game, tester) async {
+          await game.images.loadAll(assets);
+          await game.ensureAdd(
+            FlutterSignPost()
+              ..progress()
+              ..progress(),
+          );
+          game.camera.followVector2(Vector2.zero());
+        },
+        verify: (game, tester) async {
+          await expectLater(
+            find.byGame<TestGame>(),
+            matchesGoldenFile('golden/flutter-sign-post__active2.png'),
           );
         },
       );
 
+      flameTester.testGameWidget(
+        'active3 sprite',
+        setUp: (game, tester) async {
+          await game.images.loadAll(assets);
+          await game.ensureAdd(
+            FlutterSignPost()
+              ..progress()
+              ..progress()
+              ..progress(),
+          );
+          game.camera.followVector2(Vector2.zero());
+        },
+        verify: (game, tester) async {
+          await expectLater(
+            find.byGame<TestGame>(),
+            matchesGoldenFile('golden/flutter-sign-post__active3.png'),
+          );
+        },
+      );
+    });
+
     flameTester.test(
-      'loads correctly',
+      'progress changes correctly between four sprites',
       (game) async {
+        await game.images.loadAll(assets);
         final flutterSignPost = FlutterSignPost();
         await game.ready();
         await game.ensureAdd(flutterSignPost);
 
-        expect(game.contains(flutterSignPost), isTrue);
+        final spriteComponent =
+            flutterSignPost.firstChild<SpriteGroupComponent>()!;
+        final sprites = <Sprite>{};
+
+        for (var i = 0; i < 4; i++) {
+          sprites.add(spriteComponent.sprite!);
+          flutterSignPost.progress();
+        }
+
+        expect(sprites.length, equals(4));
       },
     );
   });