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https://github.com/flutter/flutter.git
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175e5c9aca
* state restoration * added example * typos and analyzer * whitespace * more typos * remove unnecessary import * whitespace * fix sample code * tests for restorationmanager and restorationid * ++ * typo * tests for bucket, part1 * rename tests * more tests * finished tests for service layer * remove wrong todo * ++ * review comments * tests for Unmanaged and regular scope * RootRestorationScope tests * typo * whitespace * testing framework * tests for properties * last set of tests * analyzer * typo * dan review * whitespace * ++ * refactor finalizers * ++ * ++ * dispose guard * ++ * ++ * dan review * add manager assert * ++ * analyzer * greg review * fix typo * Ian & John review * ian review * RestorationID -> String * revert comment * Make primitives non-nullable in prep for NNBD
112 lines
3.3 KiB
Dart
112 lines
3.3 KiB
Dart
// Copyright 2014 The Flutter Authors. All rights reserved.
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// Use of this source code is governed by a BSD-style license that can be
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// found in the LICENSE file.
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import 'package:flutter/services.dart';
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import 'package:flutter/widgets.dart';
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import 'package:flutter_test/flutter_test.dart';
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void main() {
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testWidgets('restartAndRestore', (WidgetTester tester) async {
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await tester.pumpWidget(
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const RootRestorationScope(
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restorationId: 'root-child',
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child: _RestorableWidget(
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restorationId: 'restorable-widget',
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),
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),
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);
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final _RestorableWidgetState state = tester.state(find.byType(_RestorableWidget));
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expect(find.text('Hello World 100'), findsOneWidget);
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expect(state.doubleValue, 1.0);
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state.setValues('Guten Morgen', 200, 33.4);
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await tester.pump();
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expect(find.text('Guten Morgen 200'), findsOneWidget);
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expect(state.doubleValue, 33.4);
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await tester.restartAndRestore();
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expect(find.text('Guten Morgen 200'), findsOneWidget);
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expect(find.text('Hello World 100'), findsNothing);
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final _RestorableWidgetState restoredState = tester.state(find.byType(_RestorableWidget));
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expect(restoredState, isNot(same(state)));
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expect(restoredState.doubleValue, 1.0);
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});
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testWidgets('restore from previous restoration data', (WidgetTester tester) async {
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await tester.pumpWidget(
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const RootRestorationScope(
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restorationId: 'root-child',
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child: _RestorableWidget(
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restorationId: 'restorable-widget',
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),
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),
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);
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final _RestorableWidgetState state = tester.state(find.byType(_RestorableWidget));
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expect(find.text('Hello World 100'), findsOneWidget);
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expect(state.doubleValue, 1.0);
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state.setValues('Guten Morgen', 200, 33.4);
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await tester.pump();
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expect(find.text('Guten Morgen 200'), findsOneWidget);
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expect(state.doubleValue, 33.4);
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final TestRestorationData data = await tester.getRestorationData();
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state.setValues('See you later!', 400, 123.5);
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await tester.pump();
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expect(find.text('See you later! 400'), findsOneWidget);
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expect(state.doubleValue, 123.5);
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await tester.restoreFrom(data);
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expect(tester.state(find.byType(_RestorableWidget)), same(state));
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expect(find.text('Guten Morgen 200'), findsOneWidget);
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expect(state.doubleValue, 123.5);
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});
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}
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class _RestorableWidget extends StatefulWidget {
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const _RestorableWidget({Key key, this.restorationId}) : super(key: key);
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final String restorationId;
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@override
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State<_RestorableWidget> createState() => _RestorableWidgetState();
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}
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class _RestorableWidgetState extends State<_RestorableWidget> with RestorationMixin {
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final RestorableString stringValue = RestorableString('Hello World');
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final RestorableInt intValue = RestorableInt(100);
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double doubleValue = 1.0; // Not restorable.
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@override
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void restoreState(RestorationBucket oldBucket) {
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registerForRestoration(stringValue, 'string');
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registerForRestoration(intValue, 'int');
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}
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void setValues(String s, int i, double d) {
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setState(() {
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stringValue.value = s;
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intValue.value = i;
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doubleValue = d;
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});
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}
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@override
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Widget build(BuildContext context) {
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return Text('${stringValue.value} ${intValue.value}', textDirection: TextDirection.ltr);
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}
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@override
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String get restorationId => widget.restorationId;
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}
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