/// SectionHeader widget 测试（UI-01 Task 3）。
///
/// 覆盖：分组标题渲染（titleMedium 字阶）、可选行尾动作渲染/缺省。
library;

import 'package:flutter/material.dart';
import 'package:flutter_test/flutter_test.dart';
import 'package:photo_live/app/theme.dart';
import 'package:photo_live/ui/components/section_header.dart';

void main() {
  testWidgets('渲染标题与可选行尾动作', (tester) async {
    await tester.pumpWidget(
      MaterialApp(
        theme: AppTheme.light,
        home: const Scaffold(
          body: SectionHeader(title: '活动信息', trailing: Text('查看全部')),
        ),
      ),
    );

    final title = tester.widget<Text>(find.text('活动信息'));
    expect(title.style!.fontSize, 17, reason: '分组标题字阶 17（titleMedium）');
    expect(find.text('查看全部'), findsOneWidget);
  });

  testWidgets('无行尾动作 → 仅标题', (tester) async {
    await tester.pumpWidget(
      const MaterialApp(
        home: Scaffold(body: SectionHeader(title: '活动信息')),
      ),
    );

    expect(find.text('活动信息'), findsOneWidget);
    expect(find.byType(TextButton), findsNothing);
  });
}