refactor: load assets in test games

packages/pinball_components/test/helpers/test_game.dart

@@ -2,9 +2,19 @@ import 'package:flame/input.dart';
 import 'package:flame_forge2d/flame_forge2d.dart';
 
 class TestGame extends Forge2DGame {
-  TestGame() {
+  TestGame([List<String>? assets]) : _assets = assets {
     images.prefix = '';
   }
+
+  final List<String>? _assets;
+
+  @override
+  Future<void> onLoad() async {
+    if (_assets != null) {
+      await Future.wait(_assets!.map(images.load));
+    }
+    await super.onLoad();
+  }
 }
 
 class KeyboardTestGame extends TestGame with HasKeyboardHandlerComponents {}

test/helpers/builders.dart

@@ -1,16 +1,23 @@
-import 'package:flame/src/game/flame_game.dart';
+import 'package:flame/game.dart';
 import 'package:flame_test/flame_test.dart';
 import 'package:flutter_bloc/flutter_bloc.dart';
+import 'package:flutter_test/flutter_test.dart';
 
 class FlameBlocTester<T extends FlameGame, B extends Bloc<dynamic, dynamic>>
     extends FlameTester<T> {
   FlameBlocTester({
     required GameCreateFunction<T> gameBuilder,
     required B Function() blocBuilder,
+    // TODO(allisonryan0002): find alternative for testGameWidget. Loading
+    // assets in onLoad fails because the game loads after
+    List<String>? assets,
     List<RepositoryProvider> Function()? repositories,
   }) : super(
           gameBuilder,
           pumpWidget: (gameWidget, tester) async {
+            if (assets != null) {
+              await Future.wait(assets.map(gameWidget.game.images.load));
+            }
             await tester.pumpWidget(
               BlocProvider.value(
                 value: blocBuilder(),

test/helpers/test_games.dart

@@ -1,5 +1,7 @@
 // ignore_for_file: must_call_super
 
+import 'dart:async';
+
 import 'package:flame_bloc/flame_bloc.dart';
 import 'package:flame_forge2d/flame_forge2d.dart';
 import 'package:pinball/game/game.dart';
@@ -14,26 +16,53 @@ class TestGame extends Forge2DGame with FlameBloc {
 }
 
 class PinballTestGame extends PinballGame {
-  PinballTestGame()
-      : super(
+  PinballTestGame([List<String>? assets])
+      : _assets = assets,
+        super(
           audio: MockPinballAudio(),
           theme: const PinballTheme(
             characterTheme: DashTheme(),
           ),
         );
+  final List<String>? _assets;
+
+  @override
+  Future<void> onLoad() async {
+    if (_assets != null) {
+      await Future.wait(_assets!.map(images.load));
+    }
+    await super.onLoad();
+  }
 }
 
 class DebugPinballTestGame extends DebugPinballGame {
-  DebugPinballTestGame()
-      : super(
+  DebugPinballTestGame([List<String>? assets])
+      : _assets = assets,
+        super(
           audio: MockPinballAudio(),
           theme: const PinballTheme(
             characterTheme: DashTheme(),
           ),
         );
+
+  final List<String>? _assets;
+
+  @override
+  Future<void> onLoad() async {
+    if (_assets != null) {
+      await Future.wait(_assets!.map(images.load));
+    }
+    await super.onLoad();
+  }
 }
 
 class EmptyPinballTestGame extends PinballTestGame {
+  EmptyPinballTestGame([List<String>? assets]) : super(assets);
+
   @override
-  Future<void> onLoad() async {}
+  Future<void> onLoad() async {
+    if (_assets != null) {
+      await Future.wait(_assets!.map(images.load));
+    }
+  }
 }