// 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'; void main() { testWidgets('debugCheckHasMaterial control test', (WidgetTester tester) async { await tester.pumpWidget(const ListTile()); final dynamic exception = tester.takeException(); expect(exception, isFlutterError); expect(exception.toString(), startsWith('No Material widget found.')); expect(exception.toString(), endsWith(':\n ListTile\nThe ancestors of this widget were:\n [root]')); }); }