feat(flutter): 接入分类记录收藏与下载授权

test/library/favorite_controller_test.dart

@@ -77,18 +77,33 @@ void main() {
     final repository = InMemoryFavoriteRepository(
       saved: {'signal'},
       cards: [_card('signal')],
-    );
+    )..failRemove = true;
     final controller = FavoriteController(repository);
     await controller.load();
 
     final ok = await controller.remove('signal');
 
-    // InMemory 实现的 remove 不会失败，这里断言正常路径：状态与列表一起清掉
-    expect(ok, isTrue);
-    expect(controller.isSaved('signal'), isFalse);
-    expect(controller.cards, isEmpty);
+    expect(ok, isFalse);
+    expect(controller.isSaved('signal'), isTrue);
+    expect(controller.cards.map((drama) => drama.id), ['signal']);
   });
 
+  test(
+    'should_restore_removed_card_at_original_position_when_remove_fails',
+    () async {
+      final repository = InMemoryFavoriteRepository(
+        saved: {'signal', 'city'},
+        cards: [_card('signal'), _card('city')],
+      )..failRemove = true;
+      final controller = FavoriteController(repository);
+      await controller.load();
+
+      await controller.remove('signal');
+
+      expect(controller.cards.map((drama) => drama.id), ['signal', 'city']);
+    },
+  );
+
   test('should_clear_state_when_signing_out', () async {
     final controller = FavoriteController(
       InMemoryFavoriteRepository(saved: {'signal'}, cards: [_card('signal')]),

test/library/favorites_page_test.dart

@@ -0,0 +1,153 @@
+// Author: fruit.com.cn
+
+import 'package:flutter/material.dart';
+import 'package:flutter_test/flutter_test.dart';
+import 'package:fruitshorts/core/data/models/drama.dart';
+import 'package:fruitshorts/core/data/remote/api_client.dart';
+import 'package:fruitshorts/core/data/remote/auth_api.dart';
+import 'package:fruitshorts/core/data/repositories/favorite_repository.dart';
+import 'package:fruitshorts/core/data/services/auth_controller.dart';
+import 'package:fruitshorts/core/data/services/auth_session_store.dart';
+import 'package:fruitshorts/core/data/services/favorite_controller.dart';
+import 'package:fruitshorts/l10n/app_localizations.dart';
+import 'package:fruitshorts/pages/favorites/favorites_page.dart';
+import 'package:provider/provider.dart';
+import 'package:shared_preferences_platform_interface/in_memory_shared_preferences_async.dart';
+import 'package:shared_preferences_platform_interface/shared_preferences_async_platform_interface.dart';
+
+import '../support/fake_http_adapter.dart';
+
+Drama _card(String id) => Drama(
+  id: id,
+  title: 'Drama $id',
+  synopsis: 'synopsis',
+  posterUrl: '/files/$id.png',
+  totalEpisodes: 12,
+);
+
+void main() {
+  setUp(() {
+    SharedPreferencesAsyncPlatform.instance =
+        InMemorySharedPreferencesAsync.empty();
+  });
+
+  testWidgets('should_render_favorite_cards_and_visible_remove_action', (
+    tester,
+  ) async {
+    final auth = await _auth(signedIn: true);
+    final favorites = FavoriteController(
+      InMemoryFavoriteRepository(
+        saved: {'signal', 'city'},
+        cards: [_card('signal'), _card('city')],
+      ),
+    );
+
+    await _pumpPage(tester, auth: auth, favorites: favorites);
+
+    expect(find.text('Drama signal'), findsOneWidget);
+    expect(find.text('Drama city'), findsOneWidget);
+    expect(find.byKey(const Key('favorite-remove-signal')), findsOneWidget);
+  });
+
+  testWidgets('should_keep_card_and_show_failure_when_remove_fails', (
+    tester,
+  ) async {
+    final auth = await _auth(signedIn: true);
+    final repository = InMemoryFavoriteRepository(
+      saved: {'signal'},
+      cards: [_card('signal')],
+    )..failRemove = true;
+    final favorites = FavoriteController(repository);
+
+    await _pumpPage(tester, auth: auth, favorites: favorites);
+    await tester.tap(find.byKey(const Key('favorite-remove-signal')));
+    await tester.pumpAndSettle();
+
+    expect(find.text('Drama signal'), findsOneWidget);
+    expect(
+      find.text('Could not update favorites. Please retry.'),
+      findsOneWidget,
+    );
+  });
+
+  testWidgets('should_show_empty_state_when_favorite_list_is_empty', (
+    tester,
+  ) async {
+    final auth = await _auth(signedIn: true);
+    final favorites = FavoriteController(InMemoryFavoriteRepository());
+
+    await _pumpPage(tester, auth: auth, favorites: favorites);
+
+    expect(find.byKey(const Key('favorites-empty')), findsOneWidget);
+  });
+
+  testWidgets('should_show_retry_when_favorite_list_fails', (tester) async {
+    final auth = await _auth(signedIn: true);
+    final repository = InMemoryFavoriteRepository()..failList = true;
+    final favorites = FavoriteController(repository);
+
+    await _pumpPage(tester, auth: auth, favorites: favorites);
+
+    expect(find.byKey(const Key('favorites-error')), findsOneWidget);
+    expect(find.byKey(const Key('favorites-retry')), findsOneWidget);
+  });
+
+  testWidgets(
+    'should_show_auth_gate_without_loading_favorites_when_signed_out',
+    (tester) async {
+      final auth = await _auth(signedIn: false);
+      final repository = InMemoryFavoriteRepository(
+        saved: {'signal'},
+        cards: [_card('signal')],
+      );
+      final favorites = FavoriteController(repository);
+
+      await _pumpPage(tester, auth: auth, favorites: favorites);
+
+      expect(find.byKey(const Key('auth-gate-panel')), findsOneWidget);
+      expect(repository.listCalls, 0);
+    },
+  );
+}
+
+Future<AuthController> _auth({required bool signedIn}) async {
+  if (signedIn) {
+    SharedPreferencesAsyncPlatform.instance =
+        InMemorySharedPreferencesAsync.withData({
+          'auth.accessToken': 'test-access',
+          'auth.refreshToken': 'test-refresh',
+          'auth.user': '{"uid":"1","nickname":"Viewer","avatarUrl":""}',
+        });
+  }
+  final client = ApiClient(
+    baseUrl: 'http://127.0.0.1:8081',
+    adapter: FakeHttpAdapter(
+      (_) async => FakeHttpResponse('{"code":0,"message":"ok","data":null}'),
+    ),
+  );
+  final auth = AuthController(AuthApi(client), AuthSessionStore());
+  await auth.load();
+  return auth;
+}
+
+Future<void> _pumpPage(
+  WidgetTester tester, {
+  required AuthController auth,
+  required FavoriteController favorites,
+}) async {
+  await tester.pumpWidget(
+    MultiProvider(
+      providers: [
+        ChangeNotifierProvider<AuthController>.value(value: auth),
+        ChangeNotifierProvider<FavoriteController>.value(value: favorites),
+      ],
+      child: MaterialApp(
+        locale: const Locale('en'),
+        localizationsDelegates: AppLocalizations.localizationsDelegates,
+        supportedLocales: AppLocalizations.supportedLocales,
+        home: const FavoritesPage(),
+      ),
+    ),
+  );
+  await tester.pumpAndSettle();
+}