feat(sbp_payments): added new layoute for sbp banks and rederict to chosen bank, and added tests for layoute

2026-07-14 13:43:46 +03:00
parent 0ca2d1a1cc
commit e94681266a
10 changed files with 471 additions and 27 deletions
--- a/lib/core/app_router.dart
+++ b/lib/core/app_router.dart
@@ -133,7 +133,6 @@ class AppRouter {
    final orderId = effectiveSegments[3];
    if (orderId.isEmpty) return null;
    developer.log('Deep link: finance/alfa/return/$orderId', name: 'AppRouter');
-    print('Deep link: finance/alfa/return/$orderId');
    return '${RouteConstants.chatScreen}?orderId=$orderId';
  }

--- a/lib/features/chat/presentation/pages/chat_screen.dart
+++ b/lib/features/chat/presentation/pages/chat_screen.dart
@@ -76,7 +76,6 @@ class _ChatScreenState extends State<ChatScreen> {
      orderId: _effectiveUuid == null ? widget.orderId : null,
      sendInitialMessage: widget.sendInitialMessage ?? false,
    );
-    print('uuid: $uuid');
    if (uuid != null && mounted) {
      setState(() => _effectiveUuid = uuid);
    }
--- a/lib/features/chat/presentation/widgets/notification_banner.dart
+++ b/lib/features/chat/presentation/widgets/notification_banner.dart
@@ -2,15 +2,14 @@ import 'package:eatvio_app/core/theme/custom_text_style.dart';
 import 'package:eatvio_app/core/theme/theme_helper.dart';
 import 'package:eatvio_app/core/widgets/bottom_sheet_with_blur.dart';
 import 'package:eatvio_app/core/widgets/custom_outlined_button.dart';
-import 'package:eatvio_app/core/widgets/loader.dart';
 import 'package:eatvio_app/features/chat/presentation/bloc/chat_room_cubit/chat_room_cubit.dart';
 import 'package:eatvio_app/features/chat/presentation/bloc/chat_room_cubit/chat_room_state.dart';
-import 'package:eatvio_app/features/chat/presentation/pages/payment_screen.dart';
 import 'package:eatvio_app/features/chat/presentation/widgets/chose_plan_date_widget.dart';
 import 'package:eatvio_app/features/chat/presentation/widgets/complete_plan_bottom_sheet.dart';
 import 'package:eatvio_app/features/chat/presentation/widgets/plan_complain_bottom_sheet.dart';
 import 'package:eatvio_app/features/my_diets/presentation/my_diets_screen.dart';
 import 'package:eatvio_app/features/my_finance/presentation/pages/card_settings.dart';
+import 'package:eatvio_app/features/payment/presentation/widgets/sbp_banks_bottom_sheet.dart';
 import 'package:eatvio_app/generated/l10n.dart';
 import 'package:flutter/material.dart';
 import 'package:flutter_bloc/flutter_bloc.dart';
@@ -29,7 +28,6 @@ class NotificationBanner extends StatefulWidget {
 }

 class _NotificationBannerState extends State<NotificationBanner> {
-  bool isLoading = false;
  @override
  Widget build(BuildContext context) {
    final size = MediaQuery.sizeOf(context);
@@ -54,13 +52,7 @@ class _NotificationBannerState extends State<NotificationBanner> {
                  padding: EdgeInsets.only(top: 12, right: 8, left: 12),
                  child: _StarIcon(),
                ),
-              if (isLoading)
-                const Padding(
-                  padding: EdgeInsets.only(left: 40, top: 24),
-                  child: Loader(),
-                )
-              else
-                Padding(
+              Padding(
                  padding: const EdgeInsets.only(top: 16),
                  child: Column(
                    mainAxisSize: MainAxisSize.min,
@@ -111,21 +103,10 @@ class _NotificationBannerState extends State<NotificationBanner> {
                          ),
                          const SizedBox(height: 12),
                          GestureDetector(
-                            onTap: () async {
+                            onTap: () {
                              final planId = (context.read<ChatRoomCubit>().state as ChatRoomStateLoaded).chatRoom.chosenPlan?.id;
-                              setState(() {
-                                isLoading = true;
-                              });
-                              final paymentLink = await context.read<ChatRoomCubit>().getPaymentLink();
-                              setState(() {
-                                isLoading = false;
-                              });
-                              if (paymentLink != null && planId != null) {
-                                if (!context.mounted) return;
-                                GoRouter.of(context).pushReplacement(
-                                  PaymentScreen.path,
-                                  extra: {'url': paymentLink, 'planId': planId},
-                                );
+                              if (planId != null) {
+                                showSbpBanksBottomSheet(context, planId: planId);
                              }
                            },
                            child: Text(s.pay, style: TextStyles.textLSemibold.copyWith(color: appTheme.blueA400)),
--- a/lib/features/payment/presentation/widgets/sbp_banks_bottom_sheet.dart
+++ b/lib/features/payment/presentation/widgets/sbp_banks_bottom_sheet.dart
@@ -0,0 +1,224 @@
+import 'package:cached_network_image/cached_network_image.dart';
+import 'package:eatvio_app/core/locator_service.dart';
+import 'package:eatvio_app/core/theme/custom_text_style.dart';
+import 'package:eatvio_app/core/theme/theme_helper.dart';
+import 'package:eatvio_app/core/widgets/bottom_sheet_handler_bar.dart';
+import 'package:eatvio_app/core/widgets/bottom_sheet_with_blur.dart';
+import 'package:eatvio_app/core/widgets/custom_outlined_button.dart';
+import 'package:eatvio_app/core/widgets/loader.dart';
+import 'package:eatvio_app/features/payment/presentation/cubit/consultation_payment_cubit/consultation_payment_cubit.dart';
+import 'package:eatvio_app/features/payment/presentation/cubit/consultation_payment_cubit/consultation_payment_state.dart';
+import 'package:eatvio_app/generated/l10n.dart';
+import 'package:flutter/material.dart';
+import 'package:flutter_bloc/flutter_bloc.dart';
+import 'package:sbp/models/c2bmembers_model.dart';
+
+/// Показывает bottom sheet выбора банка СБП для оплаты консультации.
+Future<void> showSbpBanksBottomSheet(BuildContext context, {required int planId}) {
+  final height = MediaQuery.sizeOf(context).height * 0.55;
+  return showBottomSheetWithBlur(
+    context: context,
+    height: height,
+    child: SbpBanksBottomSheet(planId: planId),
+  );
+}
+
+/// Bottom sheet со списком установленных банков СБП.
+///
+/// При открытии вызывает [ConsultationPaymentCubit.startPayment] с [planId]
+/// и показывает [Loader], пока загружаются checkout_url и список банков.
+class SbpBanksBottomSheet extends StatefulWidget {
+  const SbpBanksBottomSheet({super.key, required this.planId, this.cubit});
+
+  final int planId;
+  final ConsultationPaymentCubit? cubit;
+
+  @override
+  State<SbpBanksBottomSheet> createState() => _SbpBanksBottomSheetState();
+}
+
+class _SbpBanksBottomSheetState extends State<SbpBanksBottomSheet> {
+  late final ConsultationPaymentCubit _cubit;
+  late final bool _ownsCubit;
+
+  @override
+  void initState() {
+    super.initState();
+    _ownsCubit = widget.cubit == null;
+    _cubit = widget.cubit ?? sl<ConsultationPaymentCubit>();
+    WidgetsBinding.instance.addPostFrameCallback((_) {
+      _cubit.startPayment(planId: widget.planId);
+    });
+  }
+
+  @override
+  void dispose() {
+    if (_ownsCubit) {
+      _cubit.close();
+    }
+    super.dispose();
+  }
+
+  @override
+  Widget build(BuildContext context) {
+    final s = S.of(context);
+    return BlocProvider<ConsultationPaymentCubit>.value(
+      value: _cubit,
+      child: Padding(
+        padding: const EdgeInsets.symmetric(horizontal: 16),
+        child: Column(
+          crossAxisAlignment: CrossAxisAlignment.stretch,
+          children: [
+            const SizedBox(height: 8),
+            const BottomSheetHandlerBar(),
+            const SizedBox(height: 20),
+            Text(
+              s.choose_bank_for_payment,
+              style: TextStyles.headingXLSemibold.copyWith(color: appTheme.black),
+              textAlign: TextAlign.center,
+            ),
+            const SizedBox(height: 16),
+            Expanded(
+              child: BlocBuilder<ConsultationPaymentCubit, ConsultationPaymentState>(
+                builder: (context, state) {
+                  if (state.isLoading) {
+                    return const Loader();
+                  }
+                  if (state.errorMessage != null) {
+                    return _ErrorContent(
+                      message: s.sbp_payment_error,
+                      onOk: () {
+                        final navigator = Navigator.of(context);
+                        if (navigator.canPop()) {
+                          navigator.pop();
+                        }
+                      },
+                    );
+                  }
+                  if (state.banks.isEmpty) {
+                    return Center(
+                      child: Text(
+                        s.no_installed_banks,
+                        style: TextStyles.textMMedium.copyWith(color: appTheme.black),
+                        textAlign: TextAlign.center,
+                      ),
+                    );
+                  }
+                  return ListView.separated(
+                    itemCount: state.banks.length,
+                    separatorBuilder: (_, _) => const SizedBox(height: 8),
+                    itemBuilder: (context, index) {
+                      final bank = state.banks[index];
+                      return _BankTile(bank: bank, onTap: () => _onBankTap(bank));
+                    },
+                  );
+                },
+              ),
+            ),
+            const SizedBox(height: 16),
+          ],
+        ),
+      ),
+    );
+  }
+
+  Future<void> _onBankTap(C2bmemberModel bank) async {
+    final opened = await _cubit.openBank(bank: bank);
+    if (opened && mounted) {
+      final navigator = Navigator.of(context);
+      if (navigator.canPop()) {
+        navigator.pop();
+      }
+    }
+  }
+}
+
+class _BankTile extends StatelessWidget {
+  const _BankTile({required this.bank, required this.onTap});
+
+  final C2bmemberModel bank;
+  final VoidCallback onTap;
+
+  @override
+  Widget build(BuildContext context) {
+    final name = bank.localName ?? bank.bankName;
+    return InkWell(
+      onTap: onTap,
+      borderRadius: BorderRadius.circular(12),
+      child: Padding(
+        padding: const EdgeInsets.symmetric(vertical: 10, horizontal: 4),
+        child: Row(
+          children: [
+            _BankIcon(bank: bank),
+            const SizedBox(width: 12),
+            Expanded(
+              child: Text(name, style: TextStyles.textLSemibold.copyWith(color: appTheme.black)),
+            ),
+          ],
+        ),
+      ),
+    );
+  }
+}
+
+class _BankIcon extends StatelessWidget {
+  const _BankIcon({required this.bank});
+
+  final C2bmemberModel bank;
+
+  @override
+  Widget build(BuildContext context) {
+    if (bank.icon.isNotEmpty) {
+      return ClipRRect(
+        borderRadius: BorderRadius.circular(8),
+        child: CachedNetworkImage(
+          imageUrl: bank.logoURL,
+          width: 40,
+          height: 40,
+          placeholder: (context, url) => _placeholder(),
+          errorWidget: (context, url, error) => _placeholder(),
+        ),
+      );
+    }
+    return _placeholder();
+  }
+
+  Widget _placeholder() {
+    return Container(
+      width: 40,
+      height: 40,
+      decoration: BoxDecoration(color: appTheme.blueA400.withValues(alpha: 0.12), borderRadius: BorderRadius.circular(8)),
+      child: Icon(Icons.account_balance, color: appTheme.blueA400, size: 22),
+    );
+  }
+}
+
+class _ErrorContent extends StatelessWidget {
+  const _ErrorContent({required this.message, required this.onOk});
+
+  final String message;
+  final VoidCallback onOk;
+
+  @override
+  Widget build(BuildContext context) {
+    final s = S.of(context);
+    return Column(
+      mainAxisAlignment: MainAxisAlignment.center,
+      children: [
+        Text(
+          message,
+          style: TextStyles.textMMedium.copyWith(color: appTheme.black),
+          textAlign: TextAlign.center,
+        ),
+        const SizedBox(height: 16),
+        CustomOutlinedButton(
+          text: s.ok,
+          height: 52,
+          buttonTextStyle: TextStyles.textMSemibold.copyWith(color: appTheme.whiteA700),
+          buttonStyle: ButtonStyle(side: const WidgetStatePropertyAll(BorderSide.none), backgroundColor: WidgetStatePropertyAll(appTheme.blueA400)),
+          onPressed: onOk,
+        ),
+      ],
+    );
+  }
+}
--- a/lib/generated/intl/messages_en.dart
+++ b/lib/generated/intl/messages_en.dart
@@ -173,6 +173,9 @@ class MessageLookup extends MessageLookupByLibrary {
    ),
    "chest": MessageLookupByLibrary.simpleMessage("Грудь"),
    "chest_circumference": MessageLookupByLibrary.simpleMessage("Обхват груди"),
+    "choose_bank_for_payment": MessageLookupByLibrary.simpleMessage(
+      "Выберите банк",
+    ),
    "choose_date": MessageLookupByLibrary.simpleMessage("Выбрать дату"),
    "choose_diet_duration": MessageLookupByLibrary.simpleMessage(
      "Выберите срок диеты",
@@ -588,6 +591,9 @@ class MessageLookup extends MessageLookupByLibrary {
    "no_default_cards": MessageLookupByLibrary.simpleMessage(
      "У вас нет привязанных карт. Что бы начать работу, привяжите карту",
    ),
+    "no_installed_banks": MessageLookupByLibrary.simpleMessage(
+      "Нет установленных банков",
+    ),
    "not_liked_groceries": MessageLookupByLibrary.simpleMessage(
      "Не любимые продукты",
    ),
@@ -737,6 +743,9 @@ class MessageLookup extends MessageLookupByLibrary {
    "reply": MessageLookupByLibrary.simpleMessage("Ответить"),
    "resend": MessageLookupByLibrary.simpleMessage("Отправить повторно"),
    "save": MessageLookupByLibrary.simpleMessage("Сохранить"),
+    "sbp_payment_error": MessageLookupByLibrary.simpleMessage(
+      "Не удалось начать оплату. Попробуйте позже",
+    ),
    "send": MessageLookupByLibrary.simpleMessage("Отправить"),
    "send_complain": MessageLookupByLibrary.simpleMessage("Отправить жалобу"),
    "services": MessageLookupByLibrary.simpleMessage("Оказание услуг"),
--- a/lib/generated/intl/messages_ru.dart
+++ b/lib/generated/intl/messages_ru.dart
@@ -62,6 +62,9 @@ class MessageLookup extends MessageLookupByLibrary {
    "chat": MessageLookupByLibrary.simpleMessage("Чат"),
    "chest": MessageLookupByLibrary.simpleMessage("Грудь"),
    "chest_circumference": MessageLookupByLibrary.simpleMessage("Обхват груди"),
+    "choose_bank_for_payment": MessageLookupByLibrary.simpleMessage(
+      "Выберите банк",
+    ),
    "choose_diet_duration": MessageLookupByLibrary.simpleMessage(
      "Выберите срок диеты",
    ),
@@ -243,6 +246,9 @@ class MessageLookup extends MessageLookupByLibrary {
    ),
    "no": MessageLookupByLibrary.simpleMessage("Нет"),
    "no_account": MessageLookupByLibrary.simpleMessage("У меня нет аккаунта"),
+    "no_installed_banks": MessageLookupByLibrary.simpleMessage(
+      "Нет установленных банков",
+    ),
    "notifications": MessageLookupByLibrary.simpleMessage("Уведомления"),
    "one_option": MessageLookupByLibrary.simpleMessage("1 опция"),
    "option": MessageLookupByLibrary.simpleMessage("Опция"),
@@ -314,6 +320,9 @@ class MessageLookup extends MessageLookupByLibrary {
      "Снять с публикации",
    ),
    "save": MessageLookupByLibrary.simpleMessage("Сохранить"),
+    "sbp_payment_error": MessageLookupByLibrary.simpleMessage(
+      "Не удалось начать оплату. Попробуйте позже",
+    ),
    "services": MessageLookupByLibrary.simpleMessage("Оказание услуг"),
    "settings": MessageLookupByLibrary.simpleMessage("Настройки"),
    "share": MessageLookupByLibrary.simpleMessage("Поделиться"),
--- a/lib/generated/l10n.dart
+++ b/lib/generated/l10n.dart
@@ -2649,6 +2649,36 @@ class S {
    return Intl.message('Оплатить', name: 'pay', desc: '', args: []);
  }

+  /// `Выберите банк`
+  String get choose_bank_for_payment {
+    return Intl.message(
+      'Выберите банк',
+      name: 'choose_bank_for_payment',
+      desc: '',
+      args: [],
+    );
+  }
+
+  /// `Нет установленных банков`
+  String get no_installed_banks {
+    return Intl.message(
+      'Нет установленных банков',
+      name: 'no_installed_banks',
+      desc: '',
+      args: [],
+    );
+  }
+
+  /// `Не удалось начать оплату. Попробуйте позже`
+  String get sbp_payment_error {
+    return Intl.message(
+      'Не удалось начать оплату. Попробуйте позже',
+      name: 'sbp_payment_error',
+      desc: '',
+      args: [],
+    );
+  }
+
  /// `Подробнее о заказе`
  String get more_about_order {
    return Intl.message(
--- a/lib/l10n/intl_en.arb
+++ b/lib/l10n/intl_en.arb
@@ -326,6 +326,9 @@
  "date_has_ben_set": "Дата старта начала консультации установлена", 
  "tap_on_link_to_pay": "Перейдите по ссылке для оплаты консультации",
  "pay": "Оплатить",
+  "choose_bank_for_payment": "Выберите банк",
+  "no_installed_banks": "Нет установленных банков",
+  "sbp_payment_error": "Не удалось начать оплату. Попробуйте позже",
  "more_about_order": "Подробнее о заказе",
  "cancel_order": "Отменить заказ",
  "refuse_order":"Отказаться от заказа",
--- a/lib/l10n/intl_ru.arb
+++ b/lib/l10n/intl_ru.arb
@@ -233,5 +233,8 @@
  "video_call_permission_camera_title": "Доступ к камере",
  "video_call_permission_camera_description": "Чтобы вас видели во время видеозвонка, разрешите доступ к камере. При отказе можно включить доступ в настройках устройства.",
  "video_call_permission_microphone_title": "Доступ к микрофону",
-  "video_call_permission_microphone_description": "Чтобы вас слышали во время видеозвонка, разрешите доступ к микрофону. При отказе можно включить доступ в настройках устройства."
+  "video_call_permission_microphone_description": "Чтобы вас слышали во время видеозвонка, разрешите доступ к микрофону. При отказе можно включить доступ в настройках устройства.",
+  "choose_bank_for_payment": "Выберите банк",
+  "no_installed_banks": "Нет установленных банков",
+  "sbp_payment_error": "Не удалось начать оплату. Попробуйте позже"
 }
--- a/test/features/payment/presentation/widgets/sbp_banks_bottom_sheet_test.dart
+++ b/test/features/payment/presentation/widgets/sbp_banks_bottom_sheet_test.dart
@@ -0,0 +1,187 @@
+import 'dart:async';
+
+import 'package:eatvio_app/core/theme/theme_helper.dart';
+import 'package:eatvio_app/core/widgets/loader.dart';
+import 'package:eatvio_app/features/chat/models/payment_model.dart';
+import 'package:eatvio_app/features/payment/presentation/cubit/consultation_payment_cubit/consultation_payment_cubit.dart';
+import 'package:eatvio_app/features/payment/presentation/widgets/sbp_banks_bottom_sheet.dart';
+import 'package:eatvio_app/features/payment/repositories/payment_repository.dart';
+import 'package:eatvio_app/features/payment/repositories/sbp_repository.dart';
+import 'package:eatvio_app/generated/l10n.dart';
+import 'package:flutter/material.dart';
+import 'package:flutter_localizations/flutter_localizations.dart';
+import 'package:flutter_test/flutter_test.dart';
+import 'package:mockito/annotations.dart';
+import 'package:mockito/mockito.dart';
+import 'package:sbp/models/c2bmembers_model.dart';
+
+import '../../../../fixtures/fixture_reader.dart';
+import 'sbp_banks_bottom_sheet_test.mocks.dart';
+
+@GenerateNiceMocks([
+  MockSpec<PaymentRepository>(),
+  MockSpec<SbpRepository>(),
+])
+void main() {
+  TestWidgetsFlutterBinding.ensureInitialized();
+
+  group('SbpBanksBottomSheet', () {
+    late MockPaymentRepository mockPaymentRepository;
+    late MockSbpRepository mockSbpRepository;
+    late ConsultationPaymentCubit cubit;
+    late PaymentModel alfaPayment;
+
+    final installedBank = C2bmemberModel.fromJson(const {
+      'bankName': 'Сбербанк',
+      'logoURL': 'https://qr.nspk.ru/proxyapp/logo/bank100000000111.png',
+      'schema': 'bank100000000111',
+      'package_name': 'ru.sberbankmobile',
+      'icon': '',
+    });
+
+    setUp(() {
+      mockPaymentRepository = MockPaymentRepository();
+      mockSbpRepository = MockSbpRepository();
+      cubit = ConsultationPaymentCubit(
+        paymentRepository: mockPaymentRepository,
+        sbpRepository: mockSbpRepository,
+      );
+      alfaPayment = PaymentModel.fromJson(
+        FixtureReader.readAsMap('chat/payments/payment_response_alfa_bank.json'),
+      );
+    });
+
+    tearDown(() {
+      cubit.close();
+    });
+
+    Widget createTestWidget({required int planId}) {
+      return MaterialApp(
+        theme: ThemeHelper().themeData(),
+        localizationsDelegates: const [
+          S.delegate,
+          GlobalMaterialLocalizations.delegate,
+          GlobalWidgetsLocalizations.delegate,
+          GlobalCupertinoLocalizations.delegate,
+        ],
+        supportedLocales: const [Locale('ru')],
+        home: Scaffold(
+          body: SbpBanksBottomSheet(
+            planId: planId,
+            cubit: cubit,
+          ),
+        ),
+      );
+    }
+
+    testWidgets('показывает Loader пока идёт startPayment', (tester) async {
+      const planId = 12;
+      final completer = Completer<PaymentModel>();
+
+      when(
+        mockPaymentRepository.startPaymentProcess(planId: planId),
+      ).thenAnswer((_) => completer.future);
+
+      await tester.pumpWidget(createTestWidget(planId: planId));
+      await tester.pump();
+
+      expect(find.byType(Loader), findsOneWidget);
+      expect(find.text('Сбербанк'), findsNothing);
+
+      completer.complete(alfaPayment);
+      when(mockSbpRepository.getInstalledBanks()).thenAnswer((_) async => [installedBank]);
+      await tester.pumpAndSettle();
+    });
+
+    testWidgets('вызывает startPaymentProcess с переданным planId', (tester) async {
+      const planId = 12;
+
+      when(
+        mockPaymentRepository.startPaymentProcess(planId: planId),
+      ).thenAnswer((_) async => alfaPayment);
+      when(mockSbpRepository.getInstalledBanks()).thenAnswer((_) async => [installedBank]);
+
+      await tester.pumpWidget(createTestWidget(planId: planId));
+      await tester.pumpAndSettle();
+
+      verify(mockPaymentRepository.startPaymentProcess(planId: planId)).called(1);
+    });
+
+    testWidgets('после успеха показывает список банков и скрывает Loader', (tester) async {
+      const planId = 12;
+
+      when(
+        mockPaymentRepository.startPaymentProcess(planId: planId),
+      ).thenAnswer((_) async => alfaPayment);
+      when(mockSbpRepository.getInstalledBanks()).thenAnswer((_) async => [installedBank]);
+
+      await tester.pumpWidget(createTestWidget(planId: planId));
+      await tester.pumpAndSettle();
+
+      expect(find.byType(Loader), findsNothing);
+      expect(find.text('Выберите банк'), findsOneWidget);
+      expect(find.text('Сбербанк'), findsOneWidget);
+    });
+
+    testWidgets('tap по банку вызывает openBank с checkout_url', (tester) async {
+      const planId = 12;
+
+      when(
+        mockPaymentRepository.startPaymentProcess(planId: planId),
+      ).thenAnswer((_) async => alfaPayment);
+      when(mockSbpRepository.getInstalledBanks()).thenAnswer((_) async => [installedBank]);
+      when(
+        mockSbpRepository.openBank(
+          url: alfaPayment.paymentUrl,
+          bank: installedBank,
+        ),
+      ).thenAnswer((_) async => true);
+
+      await tester.pumpWidget(createTestWidget(planId: planId));
+      await tester.pumpAndSettle();
+
+      await tester.tap(find.text('Сбербанк'));
+      await tester.pumpAndSettle();
+
+      verify(
+        mockSbpRepository.openBank(
+          url: alfaPayment.paymentUrl,
+          bank: installedBank,
+        ),
+      ).called(1);
+    });
+
+    testWidgets('при ошибке API показывает сообщение об ошибке', (tester) async {
+      const planId = 12;
+
+      when(
+        mockPaymentRepository.startPaymentProcess(planId: planId),
+      ).thenThrow(Exception('Payment start failed'));
+
+      await tester.pumpWidget(createTestWidget(planId: planId));
+      await tester.pumpAndSettle();
+
+      expect(find.byType(Loader), findsNothing);
+      expect(find.text('Сбербанк'), findsNothing);
+      expect(
+        find.text('Не удалось начать оплату. Попробуйте позже'),
+        findsOneWidget,
+      );
+    });
+
+    testWidgets('при пустом списке банков показывает empty-сообщение', (tester) async {
+      const planId = 12;
+
+      when(
+        mockPaymentRepository.startPaymentProcess(planId: planId),
+      ).thenAnswer((_) async => alfaPayment);
+      when(mockSbpRepository.getInstalledBanks()).thenAnswer((_) async => []);
+
+      await tester.pumpWidget(createTestWidget(planId: planId));
+      await tester.pumpAndSettle();
+
+      expect(find.byType(Loader), findsNothing);
+      expect(find.text('Нет установленных банков'), findsOneWidget);
+    });
+  });
+}