debug_test.dart 682 Bytes
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// 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 {
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    await tester.pumpWidget(const ListTile());
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    final dynamic exception = tester.takeException();
    expect(exception, isFlutterError);
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    expect(exception.toString(), startsWith('No Material widget found.'));
    expect(exception.toString(), endsWith(':\n  ListTile\nThe ancestors of this widget were:\n  [root]'));
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  });
}