用了 screenutil, 想问一下要怎么用 widget test 确保 widgets 的高度和宽度在任何的屏幕 size 都不会造成 overflow？

[alvindrakes]

有木有用 screenutil 写 widget tests 的例子吗？

[joekendal]

如果有人有同样的问题，并看到此

import 'package:flutter/cupertino.dart';
import 'package:flutter/material.dart';
import 'package:flutter_screenutil/flutter_screenutil.dart';

class _Wrapper extends StatelessWidget {
  final Widget child;
  _Wrapper(this.child);
  @override
  Widget build(BuildContext context) {
    ScreenUtil.init(context, width: 1125, height: 2436, allowFontScaling: true);
    return child;
  }
}

Widget testableWidget({Widget child}) {
  return MediaQuery(
    data: MediaQueryData(),
    child: CupertinoApp(
      home: Scaffold(body: _Wrapper(child)),
    ),
  );
}

void main() {
  testWidgets('testingMyWidget', (WidgetTester tester) async {
        await tester.pumpWidget(testableWidget(child: MyWidget()));
  });
}