feat(home): 首页按内容类型分频道 Feed 并支持分页

test/player/player_logic_test.dart

@@ -412,6 +412,120 @@ void main() {
     });
   });
 
+  group('updateFeed', () {
+    test('should_append_feed_without_restarting_current_drama', () async {
+      final factory = _RecordingFactory();
+      final feed = [_drama('signal'), _drama('city')];
+      final logic = _logic(FakeWatchHistory());
+      logic.attach(
+        PlayerPage(
+          drama: feed.first,
+          initialIndex: 0,
+          homeMode: true,
+          feedDramas: feed,
+        ),
+        isMounted: () => true,
+      );
+      logic.start(factory: factory.create, coordinator: PlaybackCoordinator());
+      await _drain(logic);
+      final activeBefore = logic.session.active;
+
+      logic.updateFeed([...feed, _drama('third')], keepDramaId: 'signal');
+      await pumpEventQueue();
+
+      expect(logic.currentDramaId, 'signal');
+      expect(logic.visibleIndices, [0, 1, 2]);
+      expect(logic.sessionEpisodes, hasLength(3));
+      expect(logic.session.active, same(activeBefore));
+      logic.dispose();
+      await _drain(logic);
+    });
+
+    test('should_remap_current_drama_without_restarting_when_order_changes',
+        () async {
+      final factory = _RecordingFactory();
+      final feed = [_drama('signal'), _drama('city')];
+      final logic = _logic(FakeWatchHistory());
+      logic.attach(
+        PlayerPage(
+          drama: feed.first,
+          initialIndex: 1,
+          homeMode: true,
+          feedDramas: feed,
+        ),
+        isMounted: () => true,
+      );
+      logic.start(factory: factory.create, coordinator: PlaybackCoordinator());
+      await _drain(logic);
+      final activeBefore = logic.session.active;
+
+      logic.updateFeed(
+        [_drama('city'), _drama('signal'), _drama('third')],
+        keepDramaId: 'city',
+      );
+      await pumpEventQueue();
+
+      expect(logic.currentDramaId, 'city');
+      expect(logic.session.currentIndex, 0);
+      expect(logic.session.active, same(activeBefore));
+      logic.dispose();
+      await _drain(logic);
+    });
+
+    test('should_return_to_first_drama_when_feed_channel_changes', () async {
+      final factory = _RecordingFactory();
+      final feed = [_drama('signal'), _drama('city')];
+      final logic = _logic(FakeWatchHistory());
+      logic.attach(
+        PlayerPage(
+          drama: feed.first,
+          initialIndex: 0,
+          homeMode: true,
+          feedDramas: feed,
+        ),
+        isMounted: () => true,
+      );
+      logic.start(factory: factory.create, coordinator: PlaybackCoordinator());
+      await _drain(logic);
+
+      logic.updateFeed([_drama('anime-a'), _drama('anime-b')]);
+      await _drain(logic);
+
+      expect(logic.queue.entryAt(0).drama.id, 'anime-a');
+      expect(logic.currentDramaId, 'anime-a');
+      expect(logic.session.currentIndex, 0);
+      logic.dispose();
+      await _drain(logic);
+    });
+
+    test('should_clear_queue_safely_when_feed_becomes_empty', () async {
+      final feed = [_drama('signal')];
+      final logic = _logic(FakeWatchHistory());
+      logic.attach(
+        PlayerPage(
+          drama: feed.first,
+          initialIndex: 0,
+          homeMode: true,
+          feedDramas: feed,
+        ),
+        isMounted: () => true,
+      );
+      logic.start(
+        factory: _RecordingFactory().create,
+        coordinator: PlaybackCoordinator(),
+      );
+      await _drain(logic);
+
+      logic.updateFeed(const []);
+
+      expect(logic.queue.length, 0);
+      expect(logic.visibleIndices, isEmpty);
+      expect(logic.currentDramaId, isNull);
+      logic.dispose();
+      await _drain(logic);
+    });
+  });
+
   group('lifecycle', () {
     test('should_pause_active_player_when_backgrounded_and_play_it_when_resumed', () async {
       final factory = _RecordingFactory();