Golden test fonts

testing_app/flutter_test_config.dart

@@ -0,0 +1,8 @@
+import 'dart:async';
+
+import 'package:golden_toolkit/golden_toolkit.dart';
+
+Future<void> testExecutable(FutureOr<void> Function() testMain) async {
+  await loadAppFonts();
+  return testMain();
+}

testing_app/lib/main.dart

@@ -40,6 +40,7 @@ class TestingApp extends StatelessWidget {
       child: MaterialApp.router(
         title: 'Testing Sample',
         theme: ThemeData(
+          fontFamily: 'Raleway',
           colorSchemeSeed: Colors.blue,
           visualDensity: VisualDensity.adaptivePlatformDensity,
         ),

testing_app/lib/screens/favorites.dart

@@ -16,7 +16,7 @@ class FavoritesPage extends StatelessWidget {
   Widget build(BuildContext context) {
     return Scaffold(
       appBar: AppBar(
-        title: const Text('Favorites'),
+        title: const Text('Favorites W'),
       ),
       body: Consumer<Favorites>(
         builder: (context, value, child) => value.items.isNotEmpty

testing_app/pubspec.yaml

@@ -9,6 +9,8 @@ environment:
 dependencies:
   flutter:
     sdk: flutter
+  golden_toolkit: ^0.15.0
+
 
   cupertino_icons: ^1.0.3
   provider: ^6.0.2
@@ -24,4 +26,10 @@ dev_dependencies:
   test: ^1.16.8
 
 flutter:
+  fonts:
+    - family: Raleway
+      fonts:
+        - asset: fonts/Raleway-Regular.ttf
+        - asset: fonts/Raleway-Italic.ttf
+          style: italic
   uses-material-design: true

testing_app/test/favorites_page_golden_test.dart

@@ -0,0 +1,72 @@
+import 'dart:ui';
+
+import 'package:flutter/material.dart';
+import 'package:flutter/services.dart';
+import 'package:flutter_test/flutter_test.dart';
+import 'package:provider/provider.dart';
+import 'package:testing_app/models/favorites.dart';
+import 'package:testing_app/screens/favorites.dart';
+
+Future<void> loadFonts() async {
+  TestWidgetsFlutterBinding.ensureInitialized();
+  await Future.wait([
+    rootBundle.load('fonts/Raleway-Regular.ttf').then((fontData) {
+      final loader = FontLoader('Raleway')..addFont(Future.value(fontData));
+      return loader.load();
+    }),
+    rootBundle.load('fonts/Raleway-Italic.ttf').then((fontData) {
+      final loader = FontLoader('Raleway')..addFont(Future.value(fontData));
+      return loader.load();
+    }),
+  ]);
+}
+
+void main() {
+  setUpAll(() async {
+    await loadFonts();
+  });
+
+  group('Golden Test for FavoritesPage', () {
+    testWidgets('FavoritesPage with no favorites', (WidgetTester tester) async {
+      // Create a Favorites model with no items
+      await tester.pumpWidget(
+        ChangeNotifierProvider<Favorites>(
+          create: (_) => Favorites(),
+          child: const MaterialApp(
+            home: FavoritesPage(),
+          ),
+        ),
+      );
+
+      // Capture a golden image
+      await expectLater(
+        find.byType(FavoritesPage),
+        matchesGoldenFile('golden_images/favorites_page_empty.png'),
+      );
+    });
+
+    testWidgets('FavoritesPage with some favorites', (WidgetTester tester) async {
+      // Create a Favorites model with some items
+      await tester.pumpWidget(
+        ChangeNotifierProvider<Favorites>(
+          create: (_) {
+            final favorites = Favorites();
+            favorites.add(1);
+            favorites.add(2);
+            favorites.add(3);
+            return favorites;
+          },
+          child: const MaterialApp(
+            home: FavoritesPage(),
+          ),
+        ),
+      );
+
+      // Capture a golden image
+      await expectLater(
+        find.byType(FavoritesPage),
+        matchesGoldenFile('golden_images/favorites_page_with_items.png'),
+      );
+    });
+  });
+}

testing_app/test/favorites_page_golden_test.txt

@@ -0,0 +1,53 @@
+import 'package:flutter/material.dart';
+import 'package:flutter_test/flutter_test.dart';
+import 'package:provider/provider.dart';
+import 'package:testing_app/models/favorites.dart';
+import 'package:testing_app/screens/favorites.dart';
+
+
+void main() {
+
+  group('Golden Test for FavoritesPage', () {
+    testWidgets('FavoritesPage with no favorites', (WidgetTester tester) async {
+      // Create a Favorites model with no items
+      await tester.pumpWidget(
+        ChangeNotifierProvider<Favorites>(
+          create: (_) => Favorites(),
+          child: const MaterialApp(
+            home: FavoritesPage(),
+          ),
+        ),
+      );
+
+      // Capture a golden image
+      await expectLater(
+        find.byType(FavoritesPage),
+        matchesGoldenFile('golden_images/favorites_page_empty.png'),
+      );
+    });
+
+    testWidgets('FavoritesPage with some favorites', (WidgetTester tester) async {
+      // Create a Favorites model with some items
+      await tester.pumpWidget(
+        ChangeNotifierProvider<Favorites>(
+          create: (_) {
+            final favorites = Favorites();
+            favorites.add(1);
+            favorites.add(2);
+            favorites.add(3);
+            return favorites;
+          },
+          child: const MaterialApp(
+            home: FavoritesPage(),
+          ),
+        ),
+      );
+
+      // Capture a golden image
+      await expectLater(
+        find.byType(FavoritesPage),
+        matchesGoldenFile('golden_images/favorites_page_with_items.png'),
+      );
+    });
+  });
+}