feat(reward): 新增客户端奖励中心

test/recommend/recommend_discover_empty_state_test.dart

@@ -15,6 +15,60 @@ import '../support/fake_catalog.dart';
 import '../support/fake_category.dart';
 
 void main() {
+  testWidgets('should_keep_refresh_indicator_below_category_nav_when_pulling', (
+    tester,
+  ) async {
+    tester.view.physicalSize = const Size(390, 844);
+    tester.view.devicePixelRatio = 1;
+    addTearDown(tester.view.resetPhysicalSize);
+    addTearDown(tester.view.resetDevicePixelRatio);
+
+    final controller = CategoryController(
+      FakeCategoryRepository(catalog: FakeCatalogRepository()),
+    );
+    final dramas = [for (var index = 1; index <= 12; index++) _drama('$index')];
+    controller.categories = const [ContentCategory(id: '7', name: 'Romance')];
+    controller.dramaPageLoader =
+        (categoryId, {pageIndex = 1, pageSize = 20}) async =>
+            PageResult(total: dramas.length, list: dramas);
+    addTearDown(controller.dispose);
+
+    await tester.pumpWidget(
+      MaterialApp(
+        locale: const Locale('en'),
+        localizationsDelegates: AppLocalizations.localizationsDelegates,
+        supportedLocales: AppLocalizations.supportedLocales,
+        home: Scaffold(
+          body: ChangeNotifierProvider<CategoryController>.value(
+            value: controller,
+            child: const RecommendDiscoverPage(active: true, onSearch: _noop),
+          ),
+        ),
+      ),
+    );
+    await tester.pumpAndSettle();
+
+    final nav = tester.getRect(find.byKey(const Key('recommend-tab-7')));
+    final scroll = find.byKey(const PageStorageKey<String>('recommend-feed-7'));
+    final scrollable = tester.state<ScrollableState>(
+      find.descendant(of: scroll, matching: find.byType(Scrollable)).first,
+    );
+    expect(scrollable.position.pixels, 0);
+    final scrollRect = tester.getRect(scroll);
+    final gesture = await tester.startGesture(
+      Offset(scrollRect.center.dx, scrollRect.top + 120),
+    );
+    await gesture.moveBy(const Offset(0, 160));
+    await tester.pump();
+
+    final indicator = find.byKey(const Key('pull-refresh-indicator'));
+    expect(indicator, findsOneWidget);
+    expect(tester.getRect(indicator).top, greaterThanOrEqualTo(nav.bottom));
+
+    await gesture.up();
+    await tester.pumpAndSettle();
+  });
+
   testWidgets('should_center_empty_state_when_category_has_no_dramas', (
     tester,
   ) async {