test: Add smoke test for widgets and FlameGame

templates/endless_runner/lib/player_progress/player_progress.dart

@@ -1,27 +1,27 @@
 import 'dart:async';
 
+import 'package:endless_runner/flame_game/components/player.dart';
+
 import 'persistence/local_storage_player_progress_persistence.dart';
 import 'package:flutter/foundation.dart';
 
 import 'persistence/player_progress_persistence.dart';
 
 /// Encapsulates the player's progress.
 class PlayerProgress extends ChangeNotifier {
+  PlayerProgress({PlayerProgressPersistence? store})
+      : _store = store ?? LocalStoragePlayerProgressPersistence() {
+    getLatestFromStore();
+  }
+
   /// TODO: If needed, replace this with some other mechanism for saving
   ///       the player's progress. Currently, this uses the local storage
   ///       (i.e. NSUserDefaults on iOS, SharedPreferences on Android
   ///       or local storage on the web).
-  final PlayerProgressPersistence _store =
-      LocalStoragePlayerProgressPersistence();
+  final PlayerProgressPersistence _store;
 
   List<int> _levelsFinished = [];
 
-  /// Creates an instance of [PlayerProgress] backed by an injected
-  /// persistence [store].
-  PlayerProgress() {
-    getLatestFromStore();
-  }
-
   /// The times for the levels that the player has finished so far.
   List<int> get levels => _levelsFinished;
 

templates/endless_runner/pubspec.yaml

@@ -10,22 +10,23 @@ environment:
   sdk: ^3.0.0
 
 dependencies:
-  flame: ^1.10.0
+  flame: ^1.10.1
   flutter:
     sdk: flutter
 
   audioplayers: ^5.2.0
   cupertino_icons: ^1.0.6
-  flame_audio: ^2.1.2
-  go_router: ^12.0.1
+  flame_audio: ^2.1.3
+  go_router: ^12.1.0
   provider: ^6.0.5
   shared_preferences: ^2.2.2
   nes_ui: ^0.10.0
   google_fonts: ^6.1.0
   logging: ^1.2.0
 
 dev_dependencies:
-  flutter_lints: ^3.0.0
+  flame_test: ^1.14.0
+  flutter_lints: ^3.0.1
   flutter_test:
     sdk: flutter
   flutter_launcher_icons: ^0.13.1

templates/endless_runner/test/smoke_test.dart

@@ -0,0 +1,95 @@
+import 'package:endless_runner/app_lifecycle/app_lifecycle.dart';
+import 'package:endless_runner/audio/audio_controller.dart';
+import 'package:endless_runner/audio/sounds.dart';
+import 'package:endless_runner/flame_game/endless_runner.dart';
+import 'package:endless_runner/flame_game/game_screen.dart';
+import 'package:endless_runner/player_progress/persistence/memory_player_progress_persistence.dart';
+import 'package:endless_runner/player_progress/player_progress.dart';
+import 'package:endless_runner/settings/settings.dart';
+import 'package:flame_test/flame_test.dart';
+import 'package:flutter/widgets.dart';
+import 'package:flutter_test/flutter_test.dart';
+import 'package:endless_runner/main.dart';
+import 'package:go_router/go_router.dart';
+import 'package:nes_ui/nes_ui.dart';
+
+void main() {
+  testWidgets('smoke test menus', (tester) async {
+    // Build our game and trigger a frame.
+    await tester.pumpWidget(const MyGame());
+
+    // Verify that the 'Play' button is shown.
+    expect(find.text('Play'), findsOneWidget);
+
+    // Verify that the 'Settings' button is shown.
+    expect(find.text('Settings'), findsOneWidget);
+
+    // Go to 'Settings'.
+    await tester.tap(find.text('Settings'));
+    await tester.pumpAndSettle();
+    expect(find.text('Music'), findsOneWidget);
+
+    // Go back to main menu.
+    await tester.tap(find.text('Back'));
+    await tester.pumpAndSettle();
+
+    // Tap 'Play'.
+    await tester.tap(find.text('Play'));
+    await tester.pumpAndSettle();
+    expect(find.text('Select level'), findsOneWidget);
+
+    // Tap level 1.
+    await tester.tap(find.text('Level #1'));
+    await tester.pump();
+  });
+
+  testWithGame(
+    'smoke test flame game',
+    () {
+      return EndlessRunner(
+        level: (
+          number: 1,
+          winScore: 3,
+          canSpawnTall: false,
+        ),
+        playerProgress: PlayerProgress(
+          store: MemoryOnlyPlayerProgressPersistence(),
+        ),
+        audioController: _MockAudioController(),
+      );
+    },
+    (game) async {
+      game.overlays.addEntry(GameScreen.backButtonKey, (context, game) {
+        return Positioned(
+          top: 20,
+          right: 10,
+          child: NesButton(
+            type: NesButtonType.normal,
+            onPressed: GoRouter.of(context).pop,
+            child: NesIcon(iconData: NesIcons.leftArrowIndicator),
+          ),
+        );
+      });
+      game.overlays.addEntry(
+        GameScreen.winDialogKey,
+        (context, game) => Container(),
+      );
+      await game.ready();
+      expect(game.children.length, 3);
+      expect(game.world.children.length, 3);
+      expect(game.camera.viewport.children.length, 1);
+    },
+  );
+}
+
+class _MockAudioController implements AudioController {
+  @override
+  void attachDependencies(AppLifecycleStateNotifier lifecycleNotifier,
+      SettingsController settingsController) {}
+
+  @override
+  void dispose() {}
+
+  @override
+  void playSfx(SfxType type) {}
+}