oott/frontend/test/widget/notifications_list_test.dart

import 'package:flutter/material.dart';
import 'package:flutter_test/flutter_test.dart';
import 'package:frontend/home/notifications_list.dart';
import 'package:frontend/theme/gruvbox_theme.dart';
import 'package:http_mock_adapter/http_mock_adapter.dart';

import '../helpers/backend_test_harness.dart';
import '../helpers/fixtures.dart';

void main() {
  late DioAdapter adapter;

  setUp(() async {
    adapter = await setUpBackendForTest();
  });

  testWidgets(
    'marking an expanded "New" notification as read does not expand the next',
    (tester) async {
      adapter.onGet(
        '/notifications',
        (server) => server.reply(200, [
          notificationJson(id: 1, title: 'First', body: 'First body'),
          notificationJson(id: 2, title: 'Second', body: 'Second body'),
        ]),
        queryParameters: {'is_new': true, 'page_offset': 0, 'page_limit': 6},
      );
      adapter.onGet('/notifications/1', (server) => server.reply(200, null));

      await tester.pumpWidget(
        MaterialApp(
          theme: gruvboxDarkTheme,
          home: const Scaffold(body: NotificationsList()),
        ),
      );
      await tester.pumpAndSettle();

      // Expand the first notification.
      await tester.tap(find.byType(ListTile).first);
      await tester.pumpAndSettle();
      expect(find.text('Mark as read'), findsOneWidget);

      // Mark it as read; it disappears from the "New"-filtered list.
      await tester.tap(find.text('Mark as read'));
      await tester.pumpAndSettle();

      // The first notification is gone and the second stays collapsed: no
      // card is expanded, so no action buttons are showing.
      expect(find.textContaining('First'), findsNothing);
      expect(find.textContaining('Second'), findsWidgets);
      expect(find.text('Mark as read'), findsNothing);

      // Dispose the widget so its polling timer is cancelled.
      await tester.pumpWidget(const SizedBox());
    },
  );
}