如何在Flutter中很好地渲染字体进行黄金测试？

import 'package:flutter_test/flutter_test.dart';
import 'package:flutter_driver/flutter_driver.dart';

void main() {
  TestWidgetsFlutterBinding.ensureInitialized();

  group('Font Rendering Golden Test', () {
    FlutterDriver driver;

    setUpAll(() async {
      driver = await FlutterDriver.connect();
      // 初始化字体加载器
      await driver.requestData('flutter:fonts');
    });

    tearDownAll(() async {
      driver?.close();
    });

    test('Test font rendering', () async {
      // 执行相关的字体渲染操作
      // ...
    });
  });
}

final textWidget = Text(
  'Hello, Flutter!',
  style: TextStyle(
    fontFamily: 'CustomFont',
    fontSize: 20,
    fontWeight: FontWeight.bold,
  ),
);

final screenshot = await driver.screenshot();
final expectedScreenshot = await loadGoldenImage('path/to/expected/screenshot.png');
expect(screenshot, matchesGoldenImage(expectedScreenshot));