// Copyright 2014 The Flutter 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_api_samples/widgets/restoration/restoration_mixin.0.dart' as example; import 'package:flutter_test/flutter_test.dart'; void main() { testWidgets('The state of the counter can be restored', ( WidgetTester tester, ) async { await tester.pumpWidget(const example.RestorationExampleApp()); expect(find.widgetWithText(AppBar, 'Restorable Counter'), findsOne); expect(find.text('You have pushed the button this many times:'), findsOne); expect(find.text('0'), findsOne); await tester.tap(find.widgetWithIcon(FloatingActionButton, Icons.add)); await tester.pump(); expect(find.text('1'), findsOne); await tester.restartAndRestore(); expect(find.text('1'), findsOne); final TestRestorationData data = await tester.getRestorationData(); await tester.tap(find.widgetWithIcon(FloatingActionButton, Icons.add)); await tester.pump(); expect(find.text('2'), findsOne); await tester.restoreFrom(data); expect(find.text('1'), findsOne); }); }