test: test leaderboard page

lib/game/view/widgets/game_over_dialog.dart

@@ -30,7 +30,7 @@ class GameOverDialog extends StatelessWidget {
               Text(l10n.gameOver),
               TextButton(
                 onPressed: () => Navigator.of(context).push<void>(
-                  LeaderBoardPage.route(theme),
+                  LeaderBoardPage.route(theme: theme),
                 ),
                 child: Text(l10n.leadersBoard),
               ),

lib/leaderboard/view/leader_board_page.dart

@@ -11,7 +11,7 @@ class LeaderBoardPage extends StatelessWidget {
 
   final PinballTheme theme;
 
-  static Route route(PinballTheme theme) {
+  static Route route({required PinballTheme theme}) {
     return MaterialPageRoute<void>(
       builder: (_) => LeaderBoardPage(theme: theme),
     );
@@ -36,24 +36,26 @@ class LeaderBoardView extends StatelessWidget {
 
     return Scaffold(
       body: Center(
-        child: Column(
-          mainAxisAlignment: MainAxisAlignment.center,
-          children: [
-            const SizedBox(height: 80),
-            Text(
-              l10n.leadersBoard,
-              style: Theme.of(context).textTheme.headline3,
-            ),
-            const SizedBox(height: 80),
-            const _LeaderBoardView(),
-            const SizedBox(height: 20),
-            TextButton(
-              onPressed: () => Navigator.of(context).push<void>(
-                CharacterSelectionPage.route(),
+        child: SingleChildScrollView(
+          child: Column(
+            mainAxisAlignment: MainAxisAlignment.center,
+            children: [
+              const SizedBox(height: 80),
+              Text(
+                l10n.leadersBoard,
+                style: Theme.of(context).textTheme.headline3,
               ),
-              child: Text(l10n.retry),
-            ),
-          ],
+              const SizedBox(height: 80),
+              const _LeaderBoardView(),
+              const SizedBox(height: 20),
+              TextButton(
+                onPressed: () => Navigator.of(context).push<void>(
+                  CharacterSelectionPage.route(),
+                ),
+                child: Text(l10n.retry),
+              ),
+            ],
+          ),
         ),
       ),
     );
@@ -67,14 +69,12 @@ class _LeaderBoardView extends StatelessWidget {
   Widget build(BuildContext context) {
     return Padding(
       padding: const EdgeInsets.all(20),
-      child: SingleChildScrollView(
-        child: Column(
-          mainAxisAlignment: MainAxisAlignment.center,
-          children: const [
-            _LeaderBoardHeaders(),
-            _LeaderBoardList(),
-          ],
-        ),
+      child: Column(
+        mainAxisAlignment: MainAxisAlignment.center,
+        children: const [
+          _LeaderBoardHeaders(),
+          _LeaderBoardList(),
+        ],
       ),
     );
   }

test/game/view/pinball_game_page_test.dart

@@ -103,10 +103,7 @@ void main() {
         );
         await tester.pump();
 
-        expect(
-          find.text('Game Over'),
-          findsOneWidget,
-        );
+        expect(find.byType(GameOverDialog), findsOneWidget);
       },
     );
 

test/game/view/widgets/game_over_dialog_test.dart

@@ -0,0 +1,48 @@
+// ignore_for_file: prefer_const_constructors
+
+import 'package:flutter/material.dart';
+import 'package:flutter_test/flutter_test.dart';
+import 'package:mockingjay/mockingjay.dart';
+import 'package:pinball/game/game.dart';
+import 'package:pinball/l10n/l10n.dart';
+import 'package:pinball_theme/pinball_theme.dart';
+
+import '../../../helpers/helpers.dart';
+
+void main() {
+  group('GameOverDialog', () {
+    testWidgets('renders correctly', (tester) async {
+      final l10n = await AppLocalizations.delegate.load(Locale('en'));
+      await tester.pumpApp(
+        const GameOverDialog(
+          theme: PinballTheme(
+            characterTheme: DashTheme(),
+          ),
+        ),
+      );
+
+      expect(find.text(l10n.gameOver), findsOneWidget);
+      expect(find.text(l10n.leadersBoard), findsOneWidget);
+    });
+
+    testWidgets('tapping on leaderboard button navigates to LeaderBoardPage',
+        (tester) async {
+      final l10n = await AppLocalizations.delegate.load(Locale('en'));
+      final navigator = MockNavigator();
+      when(() => navigator.push<void>(any())).thenAnswer((_) async {});
+
+      await tester.pumpApp(
+        const GameOverDialog(
+          theme: PinballTheme(
+            characterTheme: DashTheme(),
+          ),
+        ),
+        navigator: navigator,
+      );
+
+      await tester.tap(find.widgetWithText(TextButton, l10n.leadersBoard));
+
+      verify(() => navigator.push<void>(any())).called(1);
+    });
+  });
+}

test/leaderboard/view/leader_board_page_test.dart

@@ -0,0 +1,90 @@
+// ignore_for_file: prefer_const_constructors
+
+import 'package:flutter/material.dart';
+import 'package:flutter_test/flutter_test.dart';
+import 'package:mockingjay/mockingjay.dart';
+import 'package:pinball/l10n/l10n.dart';
+import 'package:pinball/leaderboard/view/leader_board_page.dart';
+import 'package:pinball_theme/pinball_theme.dart';
+
+import '../../helpers/helpers.dart';
+
+void main() {
+  group('LeaderBoardPage', () {
+    testWidgets('renders LeaderBoardView', (tester) async {
+      final l10n = await AppLocalizations.delegate.load(Locale('en'));
+      await tester.pumpApp(
+        LeaderBoardPage(
+          theme: PinballTheme(
+            characterTheme: DashTheme(),
+          ),
+        ),
+      );
+
+      expect(find.byType(LeaderBoardView), findsOneWidget);
+    });
+
+    testWidgets('route returns a valid navigation route', (tester) async {
+      await tester.pumpApp(
+        Scaffold(
+          body: Builder(
+            builder: (context) {
+              return ElevatedButton(
+                onPressed: () {
+                  Navigator.of(context).push<void>(
+                    LeaderBoardPage.route(
+                      theme: PinballTheme(
+                        characterTheme: DashTheme(),
+                      ),
+                    ),
+                  );
+                },
+                child: const Text('Tap me'),
+              );
+            },
+          ),
+        ),
+      );
+
+      await tester.tap(find.text('Tap me'));
+      await tester.pumpAndSettle();
+
+      expect(find.byType(LeaderBoardPage), findsOneWidget);
+    });
+  });
+
+  group('LeaderBoardView', () {
+    testWidgets('renders correctly', (tester) async {
+      final l10n = await AppLocalizations.delegate.load(Locale('en'));
+      await tester.pumpApp(
+        LeaderBoardPage(
+          theme: PinballTheme(
+            characterTheme: DashTheme(),
+          ),
+        ),
+      );
+
+      expect(find.text(l10n.leadersBoard), findsOneWidget);
+      expect(find.text(l10n.retry), findsOneWidget);
+    });
+
+    testWidgets('navigates to CharacterSelectionPage when retry is tapped',
+        (tester) async {
+      final navigator = MockNavigator();
+      when(() => navigator.push<void>(any())).thenAnswer((_) async {});
+
+      await tester.pumpApp(
+        LeaderBoardPage(
+          theme: PinballTheme(
+            characterTheme: DashTheme(),
+          ),
+        ),
+        navigator: navigator,
+      );
+      await tester.ensureVisible(find.byType(TextButton));
+      await tester.tap(find.byType(TextButton));
+
+      verify(() => navigator.push<void>(any())).called(1);
+    });
+  });
+}