fin-tracker/app/test/app_shell_test.dart

import 'package:fintracker_api/fintracker_api.dart';
import 'package:fintracker_app/core/api/common_providers.dart';
import 'package:fintracker_app/core/cache/cached.dart';
import 'package:fintracker_app/features/home/providers.dart';
import 'package:fintracker_app/features/shell/app_shell.dart';
import 'package:fintracker_app/features/shell/nav_destinations.dart';
import 'package:fintracker_app/features/shell/nav_sidebar.dart';
import 'package:flutter/material.dart';
import 'package:flutter_riverpod/flutter_riverpod.dart';
import 'package:flutter_test/flutter_test.dart';

DataQualityRow _dataQualityRow(int id) => DataQualityRow(
      checkName: 'x',
      computedAt: DateTime(2026, 9, 19),
      count: 1,
      detail: 'issue $id',
      id: id,
      ref: null,
      severity: 'warning',
    );

void main() {
  // The sidebar (>=1200) watches meProvider and dataQualityProvider for the profile
  // footer and the Здоровье counter — every wide-breakpoint pump needs both overridden.
  Widget wrap(double width, {String location = '/'}) {
    return ProviderScope(
      overrides: [
        meProvider.overrideWith((ref) async => UserOut(email: 'ada@example.com', id: 1)),
        dataQualityProvider.overrideWith((ref) async => const Cached(<DataQualityRow>[])),
      ],
      child: MediaQuery(
        data: MediaQueryData(size: Size(width, 800)),
        child: MaterialApp(
          home: AppShell(location: location, child: Container()),
        ),
      ),
    );
  }

  testWidgets('shows the grouped sidebar on a wide surface', (tester) async {
    await tester.pumpWidget(wrap(1280));
    await tester.pump();
    expect(find.byType(NavSidebar), findsOneWidget);
    expect(find.byType(NavigationRail), findsNothing);
    expect(find.byType(NavigationBar), findsNothing);
    for (final label in navGroupLabels.values) {
      expect(find.text(label), findsOneWidget);
    }
  });

  testWidgets('shows a collapsed NavigationRail on a medium surface', (tester) async {
    await tester.pumpWidget(wrap(900));
    expect(find.byType(NavigationRail), findsOneWidget);
    expect(find.byType(NavSidebar), findsNothing);
    expect(find.byType(NavigationBar), findsNothing);
  });

  testWidgets('shows a bottom NavigationBar on a narrow surface', (tester) async {
    await tester.pumpWidget(wrap(400));
    expect(find.byType(NavigationBar), findsOneWidget);
    expect(find.byType(NavigationRail), findsNothing);
    expect(find.byType(NavSidebar), findsNothing);
  });

  testWidgets('the resolve screen keeps Импорт selected', (tester) async {
    await tester.pumpWidget(wrap(900, location: '/instruments/pending'));
    final rail = tester.widget<NavigationRail>(find.byType(NavigationRail));
    expect(
      (rail.destinations[rail.selectedIndex!].label as Text).data,
      'Импорт',
    );
  });

  testWidgets('a nested route keeps its own section selected', (tester) async {
    await tester.pumpWidget(wrap(900, location: '/portfolio/instrument/311'));
    final rail = tester.widget<NavigationRail>(find.byType(NavigationRail));
    expect(
      (rail.destinations[rail.selectedIndex!].label as Text).data,
      'Портфель',
    );
  });

  testWidgets('the sidebar keeps Импорт selected on the resolve screen', (tester) async {
    await tester.pumpWidget(wrap(1280, location: '/instruments/pending'));
    await tester.pump();
    final sidebar = tester.widget<NavSidebar>(find.byType(NavSidebar));
    expect(navDestinations[sidebar.selectedIndex].label, 'Импорт');
  });

  testWidgets('the sidebar shows the Здоровье issue count', (tester) async {
    await tester.pumpWidget(
      ProviderScope(
        overrides: [
          meProvider.overrideWith((ref) async => UserOut(email: 'ada@example.com', id: 1)),
          dataQualityProvider.overrideWith(
            (ref) async => Cached([
              _dataQualityRow(1),
              _dataQualityRow(2),
            ]),
          ),
        ],
        child: MediaQuery(
          data: const MediaQueryData(size: Size(1280, 800)),
          child: MaterialApp(home: AppShell(location: '/', child: Container())),
        ),
      ),
    );
    await tester.pump();
    expect(find.text('2'), findsOneWidget);
  });
}