fix(flutter): 首页 feed 静默刷新与进度条细节

test/home/catalog_controller_refresh_test.dart

@@ -0,0 +1,72 @@
+// Author: fruit.com.cn
+
+import 'package:flutter_test/flutter_test.dart';
+import 'package:fruitshorts/core/data/models/drama.dart';
+import 'package:fruitshorts/core/data/models/home_feed.dart';
+import 'package:fruitshorts/core/data/repositories/catalog_repository.dart';
+import 'package:fruitshorts/core/data/services/catalog_controller.dart';
+
+void main() {
+  test('should_keep_state_when_silent_refresh_fails', () async {
+    final repository = _FakeCatalog(fail: true);
+    final controller = CatalogController(repository);
+    const oldFeed = HomeFeed();
+    controller.feed = oldFeed;
+
+    final ok = await controller.refresh();
+
+    expect(ok, isFalse);
+    expect(controller.feed, same(oldFeed));
+    expect(controller.loading, isFalse);
+    expect(controller.error, isNull);
+  });
+
+  test(
+    'should_replace_feed_without_touching_loading_when_refresh_succeeds',
+    () async {
+      final repository = _FakeCatalog();
+      final controller = CatalogController(repository);
+      controller.feed = const HomeFeed();
+      final next = HomeFeed(
+        sections: [
+          FeedSection(code: 'new', title: 'New', dramas: const [_drama]),
+        ],
+      );
+      repository.next = next;
+
+      final ok = await controller.refresh();
+
+      expect(ok, isTrue);
+      expect(controller.feed, same(next));
+      expect(controller.loading, isFalse);
+      expect(controller.error, isNull);
+    },
+  );
+}
+
+class _FakeCatalog implements CatalogRepository {
+  _FakeCatalog({this.fail = false});
+
+  bool fail;
+  HomeFeed next = const HomeFeed();
+
+  @override
+  Future<HomeFeed> fetchHomeFeed() async {
+    if (fail) throw StateError('offline');
+    return next;
+  }
+
+  @override
+  Future<HomeFeed> fetchDiscoverFeed() async => const HomeFeed();
+
+  @override
+  Future<Drama> fetchDrama(String dramaId) async => _drama;
+}
+
+const _drama = Drama(
+  id: 'refresh-drama',
+  title: 'Refresh Drama',
+  synopsis: 'synopsis',
+  posterUrl: '',
+  detailLoaded: true,
+);

test/home/home_preview_layout_test.dart

@@ -211,6 +211,12 @@ void main() {
 
     final bar = tester.getRect(find.byKey(const Key('home-feed-full-series')));
     expect(bar.height, 44);
+    expect(
+      tester
+          .widget<Container>(find.byKey(const Key('home-feed-full-series-bg')))
+          .color,
+      const Color(0x4D000000),
+    );
     expect(
       tester.getRect(find.textContaining('Watch full series')).center.dy,
       closeTo(bar.center.dy, 2),
@@ -219,6 +225,23 @@ void main() {
       tester.getSize(find.byKey(const Key('home-feed-progress-thumb'))),
       const Size(6, 6),
     );
+    expect(
+      tester.getSize(find.byKey(const Key('home-feed-progress'))).height,
+      greaterThanOrEqualTo(24),
+    );
+    expect(
+      tester
+          .getRect(find.byKey(const Key('home-feed-progress-thumb')))
+          .center
+          .dy,
+      closeTo(
+        tester
+            .getRect(find.byKey(const Key('home-feed-progress-track')))
+            .center
+            .dy,
+        0.5,
+      ),
+    );
 
     await tester.tap(find.byKey(const Key('home-feed-refresh')));
     await tester.pump();
@@ -233,6 +256,23 @@ void main() {
       tester.getSize(find.byKey(const Key('home-feed-progress-thumb'))),
       const Size(10, 10),
     );
+    expect(
+      tester.getSize(find.byKey(const Key('home-feed-progress-track'))).height,
+      4,
+    );
+    expect(
+      tester
+          .getRect(find.byKey(const Key('home-feed-progress-thumb')))
+          .center
+          .dy,
+      closeTo(
+        tester
+            .getRect(find.byKey(const Key('home-feed-progress-track')))
+            .center
+            .dy,
+        0.5,
+      ),
+    );
     await gesture.up();
     await tester.pumpAndSettle();
     expect(seeked, isNotNull);
@@ -241,6 +281,10 @@ void main() {
       tester.getSize(find.byKey(const Key('home-feed-progress-thumb'))),
       const Size(6, 6),
     );
+    expect(
+      tester.getSize(find.byKey(const Key('home-feed-progress-track'))).height,
+      2,
+    );
 
     await tester.tap(find.byKey(const Key('home-feed-full-series')));
     await tester.pump();

test/home/k28_a_navigation_test.dart

@@ -96,6 +96,32 @@ void main() {
     expect(find.text('Coming soon'), findsOneWidget);
   });
 
+  testWidgets('should_refresh_feed_without_blank_loading', (tester) async {
+    await _pumpApp(tester);
+
+    await tester.tap(find.byKey(const Key('home-feed-refresh')));
+    await tester.pump();
+
+    expect(find.byType(CircularProgressIndicator), findsNothing);
+    expect(find.byKey(const Key('home-feed-title')), findsOneWidget);
+    await tester.pumpAndSettle();
+    expect(find.byKey(const Key('home-feed-title')), findsOneWidget);
+  });
+
+  testWidgets('should_keep_feed_rail_above_bottom_panels', (tester) async {
+    await _pumpApp(tester);
+    final railTop = tester.getCenter(find.byKey(const Key('rail-save'))).dy;
+    final railBottom = tester
+        .getRect(find.byKey(const Key('rail-share')))
+        .bottom;
+    final infoTop = tester
+        .getRect(find.byKey(const Key('home-feed-series-meta')))
+        .top;
+
+    expect(railTop, greaterThan(844 * 0.35));
+    expect(railBottom, lessThanOrEqualTo(infoTop));
+  });
+
   testWidgets('should_restore_light_theme_after_leaving_feed_tab', (
     tester,
   ) async {