// Copyright 2016 The Chromium Authors. All rights reserved.// Use of this source code is governed by a BSD-style license that can be// found in the LICENSE file.import'package:flutter/material.dart';import'package:flutter_test/flutter_test.dart';voidmain(){testWidgets('debugCheckHasMaterial control test',(WidgetTestertester)async{
expect(exception.toString(),startsWith('No Material widget found.'));expect(exception.toString(),endsWith(':\n ListTile\nThe ancestors of this widget were:\n [root]'));