pangolin/client/test/widget/routing_screen_test.dart

// routing_screen_test.dart — 分流规则子屏冒烟测试:模式段选 + 规则行 + 添加按钮均可见。
//
// 仿 test/widget/invite_page_test.dart 的 _FakeNotifier 范式:直接 extends
// RoutingProfileNotifier 覆写 build(),绕过真实账户 API。
import 'package:flutter/material.dart';
import 'package:flutter_riverpod/flutter_riverpod.dart';
import 'package:flutter_test/flutter_test.dart';
import 'package:pangolin_vpn/l10n/strings_zh.dart';
import 'package:pangolin_vpn/models/routing_profile.dart';
import 'package:pangolin_vpn/pangolin_theme.dart';
import 'package:pangolin_vpn/state/app_providers.dart';
import 'package:pangolin_vpn/state/routing_provider.dart';
import 'package:pangolin_vpn/widgets/routing_screen.dart';

import '../helpers/harness.dart';

void main() {
  setUpAll(disableGoogleFontsFetching);

  testWidgets('routing screen shows mode seg + rules + add', (tester) async {
    final profile = RoutingProfile.fromJson({
      'mode': 'rule',
      'builtin': {'china_direct': true, 'lan_direct': true, 'private_via_tunnel': true},
      'rules': [
        {'type': 'domain_suffix', 'value': 'x.com', 'action': 'direct'},
      ],
      'final': 'proxy',
    });

    await tester.pumpWidget(ProviderScope(
      overrides: [
        appTextProvider.overrideWithValue(StringsZh()),
        routingProfileProvider.overrideWith(() => _FakeRoutingNotifier(profile)),
      ],
      child: MaterialApp(
        debugShowCheckedModeBanner: false,
        theme: PangolinTheme.light,
        home: const RoutingScreen(),
      ),
    ));
    await tester.pumpAndSettle();

    // 模式段选(全局/智能分流/全部直连)存在。
    expect(find.text(StringsZh().routingModeSmart), findsWidgets);
    // 规则行:目标值展示。
    expect(find.text('x.com'), findsOneWidget);
    // 添加规则按钮存在。
    expect(find.text(StringsZh().routingAddRule), findsOneWidget);
  });

  testWidgets('non-smart mode dims the my-rules section', (tester) async {
    final profile = RoutingProfile.fromJson({
      'mode': 'global',
      'builtin': {'china_direct': true, 'lan_direct': true, 'private_via_tunnel': true},
      'rules': [
        {'type': 'domain_suffix', 'value': 'x.com', 'action': 'direct'},
      ],
      'final': 'proxy',
    });

    await tester.pumpWidget(ProviderScope(
      overrides: [
        appTextProvider.overrideWithValue(StringsZh()),
        routingProfileProvider.overrideWith(() => _FakeRoutingNotifier(profile)),
      ],
      child: MaterialApp(
        debugShowCheckedModeBanner: false,
        theme: PangolinTheme.light,
        home: const RoutingScreen(),
      ),
    ));
    await tester.pumpAndSettle();

    final opacity = tester.widget<Opacity>(find
        .ancestor(of: find.text(StringsZh().routingMyRulesOrdered), matching: find.byType(Opacity))
        .first);
    expect(opacity.opacity, lessThan(1));
  });

  testWidgets('a rule shadowed by an earlier identical rule is flagged', (tester) async {
    final profile = RoutingProfile.fromJson({
      'mode': 'rule',
      'builtin': {'china_direct': true, 'lan_direct': true, 'private_via_tunnel': true},
      'rules': [
        {'type': 'domain_suffix', 'value': 'dup.com', 'action': 'direct'},
        {'type': 'domain_suffix', 'value': 'dup.com', 'action': 'proxy'},
      ],
      'final': 'proxy',
    });

    await tester.pumpWidget(ProviderScope(
      overrides: [
        appTextProvider.overrideWithValue(StringsZh()),
        routingProfileProvider.overrideWith(() => _FakeRoutingNotifier(profile)),
      ],
      child: MaterialApp(
        debugShowCheckedModeBanner: false,
        theme: PangolinTheme.light,
        home: const RoutingScreen(),
      ),
    ));
    await tester.pumpAndSettle();

    expect(find.text(StringsZh().routingRuleShadowed), findsOneWidget);
  });
}

class _FakeRoutingNotifier extends RoutingProfileNotifier {
  _FakeRoutingNotifier(this._v);
  final RoutingProfile _v;
  @override
  Future<RoutingProfile> build() async => _v;
}