platforms/apps/user_app/test/ui/settings_page_test.dart

// 功能描述：设置确认操作、附属读取失败降级与登录密码表单回归；版本：1.0.0。
import 'package:flutter/material.dart';
import 'package:flutter_test/flutter_test.dart';
import 'package:user_app/app/dependencies.dart';
import 'package:user_app/data/services/api_client.dart';
import 'package:user_app/data/services/app_settings_service.dart';
import 'package:user_app/data/services/secure_session_store.dart';
import 'package:user_app/domain/models/client_models.dart';
import 'package:user_app/ui/core/app_theme.dart';
import 'package:user_app/ui/features/settings/settings_page.dart';
import 'package:user_app/ui/features/settings/login_password_page.dart';
import '../support/a1_fixture.dart';

class SettingsSession extends UserSession {
  SettingsSession() : super(SecureSessionStore());
  int logouts = 0;
  @override
  Future<void> logout() async {
    logouts++;
  }
}

class SettingsFixture extends A1FixtureRepository {
  bool failProfile = false, failPassword = true;
  int changes = 0;
  String? receivedCurrent, receivedNext;
  @override
  Future<UserProfile> profile() async {
    if (failProfile) throw const ApiException(500, '资料暂时不可用');
    return super.profile();
  }

  @override
  Future<void> changeLoginPassword(String currentPassword, String newPassword) async {
    changes++;
    receivedCurrent = currentPassword;
    receivedNext = newPassword;
    if (failPassword) throw const ApiException(1305, '当前密码错误');
  }
}

class SettingsServiceFixture extends AppSettingsService {
  int clears = 0;
  @override
  Future<String> version() async => '1.0.0 (1)';
  @override
  int get imageCacheBytes => clears == 0 ? 1048576 : 0;
  @override
  void clearImageCache() {
    clears++;
  }
}

void main() {
  testWidgets('资料读取失败仍可清图片缓存，取消不清除，退出需确认', (tester) async {
    tester.view.physicalSize = const Size(390, 844);
    tester.view.devicePixelRatio = 1;
    addTearDown(tester.view.resetPhysicalSize);
    addTearDown(tester.view.resetDevicePixelRatio);
    final repo = SettingsFixture()..failProfile = true;
    final session = SettingsSession(), service = SettingsServiceFixture();
    await tester.pumpWidget(
      MaterialApp(
        theme: AppTheme.light(),
        home: SettingsPage(repository: repo, session: session, service: service),
      ),
    );
    await tester.pumpAndSettle();
    expect(find.text('读取失败，点击重试'), findsOneWidget);
    await tester.scrollUntilVisible(find.text('清除缓存'), 300);
    await tester.pumpAndSettle();
    await tester.tap(find.text('清除缓存'));
    await tester.pumpAndSettle();
    await tester.tap(find.text('取消'));
    await tester.pumpAndSettle();
    expect(service.clears, 0);
    await tester.tap(find.text('清除缓存'));
    await tester.pumpAndSettle();
    await tester.tap(find.text('确认'));
    await tester.pumpAndSettle();
    expect(service.clears, 1);
    expect(find.text('0.0MB 图片缓存'), findsOneWidget);
    await tester.scrollUntilVisible(find.text('退出登录'), 300);
    await tester.pumpAndSettle();
    await tester.tap(find.text('退出登录'));
    await tester.pumpAndSettle();
    await tester.tap(find.text('取消'));
    await tester.pumpAndSettle();
    expect(session.logouts, 0);
    await tester.tap(find.text('退出登录'));
    await tester.pumpAndSettle();
    await tester.tap(find.text('确认'));
    await tester.pumpAndSettle();
    expect(session.logouts, 1);
  });

  testWidgets('密码校验阻止错误提交，服务端失败保留输入，成功才退出', (tester) async {
    final repo = SettingsFixture(), session = SettingsSession();
    await tester.pumpWidget(
      MaterialApp(
        theme: AppTheme.light(),
        home: LoginPasswordPage(repository: repo, session: session),
      ),
    );
    await tester.tap(find.text('确认修改并重新登录'));
    await tester.pumpAndSettle();
    expect(repo.changes, 0);
    await tester.enterText(find.byKey(const ValueKey('password-0')), 'old-test-password');
    await tester.enterText(find.byKey(const ValueKey('password-1')), 'new-test-password');
    await tester.enterText(find.byKey(const ValueKey('password-2')), 'mismatch');
    await tester.tap(find.text('确认修改并重新登录'));
    await tester.pumpAndSettle();
    expect(find.text('两次新密码不一致'), findsOneWidget);
    expect(repo.changes, 0);
    await tester.enterText(find.byKey(const ValueKey('password-2')), 'new-test-password');
    await tester.tap(find.text('确认修改并重新登录'));
    await tester.pumpAndSettle();
    expect(find.text('当前密码错误'), findsOneWidget);
    expect(session.logouts, 0);
    expect(
      tester.widget<TextFormField>(find.byKey(const ValueKey('password-1'))).controller!.text,
      'new-test-password',
    );
    repo.failPassword = false;
    await tester.tap(find.text('确认修改并重新登录'));
    await tester.pumpAndSettle();
    expect(repo.changes, 2);
    expect(session.logouts, 1);
    expect(repo.receivedCurrent, 'old-test-password');
    expect(repo.receivedNext, 'new-test-password');
    expect(
      tester.widget<TextFormField>(find.byKey(const ValueKey('password-1'))).controller!.text,
      '',
    );
  });
}