mirror of
https://github.com/flutter/flutter
synced 2024-10-14 04:02:56 +00:00
676 lines
22 KiB
Dart
676 lines
22 KiB
Dart
// Copyright 2017 The Chromium Authors. All rights reserved.rint
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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_test/flutter_test.dart';
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import 'package:flutter/foundation.dart';
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import 'package:flutter/widgets.dart';
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import 'package:flutter_localizations/flutter_localizations.dart';
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class TestLocalizations {
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TestLocalizations(this.locale, this.prefix);
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final Locale locale;
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final String prefix;
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static Future<TestLocalizations> loadSync(Locale locale, String prefix) {
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return new SynchronousFuture<TestLocalizations>(new TestLocalizations(locale, prefix));
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}
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static Future<TestLocalizations> loadAsync(Locale locale, String prefix) {
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return new Future<TestLocalizations>.delayed(const Duration(milliseconds: 100))
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.then((_) => new TestLocalizations(locale, prefix));
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}
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static TestLocalizations of(BuildContext context) {
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return Localizations.of<TestLocalizations>(context, TestLocalizations);
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}
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String get message => '${prefix ?? ""}$locale';
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}
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class SyncTestLocalizationsDelegate extends LocalizationsDelegate<TestLocalizations> {
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SyncTestLocalizationsDelegate([this.prefix]);
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final String prefix; // Changing this value triggers a rebuild
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final List<bool> shouldReloadValues = <bool>[];
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@override
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bool isSupported(Locale locale) => true;
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@override
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Future<TestLocalizations> load(Locale locale) => TestLocalizations.loadSync(locale, prefix);
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@override
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bool shouldReload(SyncTestLocalizationsDelegate old) {
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shouldReloadValues.add(prefix != old.prefix);
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return prefix != old.prefix;
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}
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@override
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String toString() => '$runtimeType($prefix)';
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}
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class AsyncTestLocalizationsDelegate extends LocalizationsDelegate<TestLocalizations> {
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AsyncTestLocalizationsDelegate([this.prefix]);
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final String prefix; // Changing this value triggers a rebuild
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final List<bool> shouldReloadValues = <bool>[];
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@override
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bool isSupported(Locale locale) => true;
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@override
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Future<TestLocalizations> load(Locale locale) => TestLocalizations.loadAsync(locale, prefix);
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@override
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bool shouldReload(AsyncTestLocalizationsDelegate old) {
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shouldReloadValues.add(prefix != old.prefix);
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return prefix != old.prefix;
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}
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@override
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String toString() => '$runtimeType($prefix)';
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}
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class MoreLocalizations {
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MoreLocalizations(this.locale);
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final Locale locale;
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static Future<MoreLocalizations> loadSync(Locale locale) {
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return new SynchronousFuture<MoreLocalizations>(new MoreLocalizations(locale));
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}
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static Future<MoreLocalizations> loadAsync(Locale locale) {
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return new Future<MoreLocalizations>.delayed(const Duration(milliseconds: 100))
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.then((_) => new MoreLocalizations(locale));
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}
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static MoreLocalizations of(BuildContext context) {
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return Localizations.of<MoreLocalizations>(context, MoreLocalizations);
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}
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String get message => '$locale';
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}
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class SyncMoreLocalizationsDelegate extends LocalizationsDelegate<MoreLocalizations> {
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@override
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Future<MoreLocalizations> load(Locale locale) => MoreLocalizations.loadSync(locale);
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@override
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bool isSupported(Locale locale) => true;
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@override
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bool shouldReload(SyncMoreLocalizationsDelegate old) => false;
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}
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class AsyncMoreLocalizationsDelegate extends LocalizationsDelegate<MoreLocalizations> {
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@override
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Future<MoreLocalizations> load(Locale locale) => MoreLocalizations.loadAsync(locale);
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@override
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bool isSupported(Locale locale) => true;
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@override
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bool shouldReload(AsyncMoreLocalizationsDelegate old) => false;
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}
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class OnlyRTLDefaultWidgetsLocalizations extends DefaultWidgetsLocalizations {
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@override
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TextDirection get textDirection => TextDirection.rtl;
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}
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class OnlyRTLDefaultWidgetsLocalizationsDelegate extends LocalizationsDelegate<WidgetsLocalizations> {
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const OnlyRTLDefaultWidgetsLocalizationsDelegate();
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@override
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bool isSupported(Locale locale) => true;
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@override
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Future<WidgetsLocalizations> load(Locale locale) {
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return new SynchronousFuture<WidgetsLocalizations>(new OnlyRTLDefaultWidgetsLocalizations());
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}
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@override
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bool shouldReload(OnlyRTLDefaultWidgetsLocalizationsDelegate old) => false;
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}
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Widget buildFrame({
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Locale locale,
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Iterable<LocalizationsDelegate<dynamic>> delegates,
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WidgetBuilder buildContent,
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LocaleResolutionCallback localeResolutionCallback,
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List<Locale> supportedLocales = const <Locale>[
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Locale('en', 'US'),
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Locale('en', 'GB'),
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],
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}) {
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return new WidgetsApp(
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color: const Color(0xFFFFFFFF),
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locale: locale,
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localizationsDelegates: delegates,
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localeResolutionCallback: localeResolutionCallback,
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supportedLocales: supportedLocales,
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onGenerateRoute: (RouteSettings settings) {
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return new PageRouteBuilder<void>(
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pageBuilder: (BuildContext context, Animation<double> _, Animation<double> __) {
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return buildContent(context);
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}
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);
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},
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);
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}
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class SyncLoadTest extends StatefulWidget {
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const SyncLoadTest();
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@override
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SyncLoadTestState createState() => new SyncLoadTestState();
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}
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class SyncLoadTestState extends State<SyncLoadTest> {
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@override
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Widget build(BuildContext context) {
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return new Text(
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TestLocalizations.of(context).message,
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textDirection: TextDirection.rtl,
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);
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}
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}
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void main() {
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testWidgets('Localizations.localeFor in a WidgetsApp with system locale', (WidgetTester tester) async {
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BuildContext pageContext;
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await tester.pumpWidget(
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buildFrame(
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buildContent: (BuildContext context) {
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pageContext = context;
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return const Text('Hello World', textDirection: TextDirection.ltr);
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}
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)
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);
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await tester.binding.setLocale('en', 'GB');
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await tester.pump();
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expect(Localizations.localeOf(pageContext), const Locale('en', 'GB'));
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await tester.binding.setLocale('en', 'US');
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await tester.pump();
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expect(Localizations.localeOf(pageContext), const Locale('en', 'US'));
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});
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testWidgets('Localizations.localeFor in a WidgetsApp with an explicit locale', (WidgetTester tester) async {
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const Locale locale = Locale('en', 'US');
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BuildContext pageContext;
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await tester.pumpWidget(
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buildFrame(
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locale: locale,
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buildContent: (BuildContext context) {
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pageContext = context;
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return const Text('Hello World');
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},
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)
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);
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expect(Localizations.localeOf(pageContext), locale);
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await tester.binding.setLocale('en', 'GB');
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await tester.pump();
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// The WidgetApp's explicit locale overrides the system's locale.
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expect(Localizations.localeOf(pageContext), locale);
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});
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testWidgets('Synchronously loaded localizations in a WidgetsApp', (WidgetTester tester) async {
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final List<LocalizationsDelegate<dynamic>> delegates = <LocalizationsDelegate<dynamic>>[
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new SyncTestLocalizationsDelegate(),
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DefaultWidgetsLocalizations.delegate,
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];
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Future<Null> pumpTest(Locale locale) async {
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await tester.pumpWidget(new Localizations(
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locale: locale,
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delegates: delegates,
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child: const SyncLoadTest(),
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));
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}
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await pumpTest(const Locale('en', 'US'));
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expect(find.text('en_US'), findsOneWidget);
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await pumpTest(const Locale('en', 'GB'));
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await tester.pump();
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expect(find.text('en_GB'), findsOneWidget);
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await pumpTest(const Locale('en', 'US'));
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await tester.pump();
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expect(find.text('en_US'), findsOneWidget);
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});
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testWidgets('Asynchronously loaded localizations in a WidgetsApp', (WidgetTester tester) async {
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await tester.pumpWidget(
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buildFrame(
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delegates: <LocalizationsDelegate<dynamic>>[
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new AsyncTestLocalizationsDelegate(),
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],
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buildContent: (BuildContext context) {
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return new Text(TestLocalizations.of(context).message);
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}
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)
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);
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await tester.pump(const Duration(milliseconds: 50)); // TestLocalizations.loadAsync() takes 100ms
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expect(find.text('en_US'), findsNothing); // TestLocalizations hasn't been loaded yet
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await tester.pump(const Duration(milliseconds: 50)); // TestLocalizations.loadAsync() completes
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await tester.pumpAndSettle();
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expect(find.text('en_US'), findsOneWidget); // default test locale is US english
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await tester.binding.setLocale('en', 'GB');
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await tester.pump(const Duration(milliseconds: 100));
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await tester.pumpAndSettle();
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expect(find.text('en_GB'), findsOneWidget);
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await tester.binding.setLocale('en', 'US');
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await tester.pump(const Duration(milliseconds: 50));
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// TestLocalizations.loadAsync() hasn't completed yet so the old text
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// localization is still displayed
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expect(find.text('en_GB'), findsOneWidget);
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await tester.pump(const Duration(milliseconds: 50)); // finish the async load
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await tester.pumpAndSettle();
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expect(find.text('en_US'), findsOneWidget);
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});
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testWidgets('Localizations with multiple sync delegates', (WidgetTester tester) async {
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await tester.pumpWidget(
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buildFrame(
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delegates: <LocalizationsDelegate<dynamic>>[
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new SyncTestLocalizationsDelegate(),
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new SyncMoreLocalizationsDelegate(),
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],
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locale: const Locale('en', 'US'),
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buildContent: (BuildContext context) {
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return new Column(
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children: <Widget>[
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new Text('A: ${TestLocalizations.of(context).message}'),
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new Text('B: ${MoreLocalizations.of(context).message}'),
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],
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);
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}
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)
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);
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// All localizations were loaded synchronously
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expect(find.text('A: en_US'), findsOneWidget);
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expect(find.text('B: en_US'), findsOneWidget);
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});
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testWidgets('Localizations with multiple delegates', (WidgetTester tester) async {
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await tester.pumpWidget(
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buildFrame(
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delegates: <LocalizationsDelegate<dynamic>>[
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new SyncTestLocalizationsDelegate(),
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new AsyncMoreLocalizationsDelegate(), // No resources until this completes
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],
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locale: const Locale('en', 'US'),
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buildContent: (BuildContext context) {
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return new Column(
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children: <Widget>[
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new Text('A: ${TestLocalizations.of(context).message}'),
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new Text('B: ${MoreLocalizations.of(context).message}'),
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],
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);
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}
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)
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);
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await tester.pump(const Duration(milliseconds: 50));
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expect(find.text('A: en_US'), findsNothing); // MoreLocalizations.load() hasn't completed yet
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expect(find.text('B: en_US'), findsNothing);
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await tester.pump(const Duration(milliseconds: 50));
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await tester.pumpAndSettle();
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expect(find.text('A: en_US'), findsOneWidget);
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expect(find.text('B: en_US'), findsOneWidget);
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});
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testWidgets('Multiple Localizations', (WidgetTester tester) async {
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await tester.pumpWidget(
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buildFrame(
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delegates: <LocalizationsDelegate<dynamic>>[
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new SyncTestLocalizationsDelegate(),
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],
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locale: const Locale('en', 'US'),
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buildContent: (BuildContext context) {
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return new Column(
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children: <Widget>[
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new Text('A: ${TestLocalizations.of(context).message}'),
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new Localizations(
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locale: const Locale('en', 'GB'),
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delegates: <LocalizationsDelegate<dynamic>>[
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new SyncTestLocalizationsDelegate(),
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DefaultWidgetsLocalizations.delegate,
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],
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// Create a new context within the en_GB Localization
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child: new Builder(
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builder: (BuildContext context) {
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return new Text('B: ${TestLocalizations.of(context).message}');
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},
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),
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),
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],
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);
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}
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)
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);
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expect(find.text('A: en_US'), findsOneWidget);
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expect(find.text('B: en_GB'), findsOneWidget);
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});
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// If both the locale and the length and type of a Localizations delegate list
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// stays the same BUT one of its delegate.shouldReload() methods returns true,
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// then the dependent widgets should rebuild.
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testWidgets('Localizations sync delegate shouldReload returns true', (WidgetTester tester) async {
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final SyncTestLocalizationsDelegate originalDelegate = new SyncTestLocalizationsDelegate();
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await tester.pumpWidget(
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buildFrame(
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delegates: <LocalizationsDelegate<dynamic>>[
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originalDelegate,
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new SyncMoreLocalizationsDelegate(),
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],
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locale: const Locale('en', 'US'),
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buildContent: (BuildContext context) {
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return new Column(
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children: <Widget>[
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new Text('A: ${TestLocalizations.of(context).message}'),
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new Text('B: ${MoreLocalizations.of(context).message}'),
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],
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);
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}
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)
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);
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await tester.pumpAndSettle();
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expect(find.text('A: en_US'), findsOneWidget);
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expect(find.text('B: en_US'), findsOneWidget);
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expect(originalDelegate.shouldReloadValues, <bool>[]);
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final SyncTestLocalizationsDelegate modifiedDelegate = new SyncTestLocalizationsDelegate('---');
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await tester.pumpWidget(
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buildFrame(
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delegates: <LocalizationsDelegate<dynamic>>[
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modifiedDelegate,
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new SyncMoreLocalizationsDelegate(),
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],
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locale: const Locale('en', 'US'),
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buildContent: (BuildContext context) {
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return new Column(
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children: <Widget>[
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new Text('A: ${TestLocalizations.of(context).message}'),
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new Text('B: ${MoreLocalizations.of(context).message}'),
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],
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);
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}
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)
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);
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await tester.pumpAndSettle();
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expect(find.text('A: ---en_US'), findsOneWidget);
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expect(find.text('B: en_US'), findsOneWidget);
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expect(modifiedDelegate.shouldReloadValues, <bool>[true]);
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expect(originalDelegate.shouldReloadValues, <bool>[]);
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});
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testWidgets('Localizations async delegate shouldReload returns true', (WidgetTester tester) async {
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await tester.pumpWidget(
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buildFrame(
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delegates: <LocalizationsDelegate<dynamic>>[
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new AsyncTestLocalizationsDelegate(),
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new AsyncMoreLocalizationsDelegate(),
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],
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locale: const Locale('en', 'US'),
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buildContent: (BuildContext context) {
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return new Column(
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children: <Widget>[
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new Text('A: ${TestLocalizations.of(context).message}'),
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new Text('B: ${MoreLocalizations.of(context).message}'),
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],
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);
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}
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)
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);
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await tester.pumpAndSettle();
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expect(find.text('A: en_US'), findsOneWidget);
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expect(find.text('B: en_US'), findsOneWidget);
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final AsyncTestLocalizationsDelegate modifiedDelegate = new AsyncTestLocalizationsDelegate('---');
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await tester.pumpWidget(
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buildFrame(
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delegates: <LocalizationsDelegate<dynamic>>[
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modifiedDelegate,
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new AsyncMoreLocalizationsDelegate(),
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],
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locale: const Locale('en', 'US'),
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buildContent: (BuildContext context) {
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return new Column(
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children: <Widget>[
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new Text('A: ${TestLocalizations.of(context).message}'),
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new Text('B: ${MoreLocalizations.of(context).message}'),
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],
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);
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}
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)
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);
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await tester.pumpAndSettle();
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expect(find.text('A: ---en_US'), findsOneWidget);
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expect(find.text('B: en_US'), findsOneWidget);
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expect(modifiedDelegate.shouldReloadValues, <bool>[true]);
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});
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testWidgets('Directionality tracks system locale', (WidgetTester tester) async {
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BuildContext pageContext;
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await tester.pumpWidget(
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buildFrame(
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delegates: const <LocalizationsDelegate<dynamic>>[
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GlobalWidgetsLocalizations.delegate,
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],
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supportedLocales: const <Locale>[
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Locale('en', 'GB'),
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Locale('ar', 'EG'),
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],
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buildContent: (BuildContext context) {
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pageContext = context;
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return const Text('Hello World');
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}
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)
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);
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await tester.binding.setLocale('en', 'GB');
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await tester.pump();
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expect(Directionality.of(pageContext), TextDirection.ltr);
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await tester.binding.setLocale('ar', 'EG');
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await tester.pump();
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expect(Directionality.of(pageContext), TextDirection.rtl);
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});
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testWidgets('localeResolutionCallback override', (WidgetTester tester) async {
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await tester.pumpWidget(
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buildFrame(
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localeResolutionCallback: (Locale newLocale, Iterable<Locale> supportedLocales) {
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return const Locale('foo', 'BAR');
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},
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buildContent: (BuildContext context) {
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return new Text(Localizations.localeOf(context).toString());
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}
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)
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);
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await tester.pumpAndSettle();
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expect(find.text('foo_BAR'), findsOneWidget);
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await tester.binding.setLocale('en', 'GB');
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await tester.pumpAndSettle();
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expect(find.text('foo_BAR'), findsOneWidget);
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});
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testWidgets('supportedLocales and defaultLocaleChangeHandler', (WidgetTester tester) async {
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await tester.pumpWidget(
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buildFrame(
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supportedLocales: const <Locale>[
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Locale('zh', 'CN'),
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Locale('en', 'GB'),
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Locale('en', 'CA'),
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],
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buildContent: (BuildContext context) {
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return new Text(Localizations.localeOf(context).toString());
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}
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)
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);
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// Startup time. Default test locale is const Locale('', ''), so
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// no supported matches. Use the first locale.
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await tester.pumpAndSettle();
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expect(find.text('zh_CN'), findsOneWidget);
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// defaultLocaleChangedHandler prefers exact supported locale match
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await tester.binding.setLocale('en', 'CA');
|
|
await tester.pumpAndSettle();
|
|
expect(find.text('en_CA'), findsOneWidget);
|
|
|
|
// defaultLocaleChangedHandler chooses 1st matching supported locale.languageCode
|
|
await tester.binding.setLocale('en', 'US');
|
|
await tester.pumpAndSettle();
|
|
expect(find.text('en_GB'), findsOneWidget);
|
|
|
|
// defaultLocaleChangedHandler: no matching supported locale, so use the 1st one
|
|
await tester.binding.setLocale('da', 'DA');
|
|
await tester.pumpAndSettle();
|
|
expect(find.text('zh_CN'), findsOneWidget);
|
|
});
|
|
|
|
testWidgets('Localizations.override widget tracks parent\'s locale and delegates', (WidgetTester tester) async {
|
|
await tester.pumpWidget(
|
|
buildFrame(
|
|
// Accept whatever locale we're given
|
|
localeResolutionCallback: (Locale locale, Iterable<Locale> supportedLocales) => locale,
|
|
delegates: const <LocalizationsDelegate<dynamic>>[
|
|
GlobalWidgetsLocalizations.delegate,
|
|
],
|
|
buildContent: (BuildContext context) {
|
|
return new Localizations.override(
|
|
context: context,
|
|
child: new Builder(
|
|
builder: (BuildContext context) {
|
|
final Locale locale = Localizations.localeOf(context);
|
|
final TextDirection direction = WidgetsLocalizations.of(context).textDirection;
|
|
return new Text('$locale $direction');
|
|
},
|
|
),
|
|
);
|
|
}
|
|
)
|
|
);
|
|
|
|
// Initial WidgetTester locale is new Locale('', '')
|
|
await tester.pumpAndSettle();
|
|
expect(find.text('_ TextDirection.ltr'), findsOneWidget);
|
|
|
|
await tester.binding.setLocale('en', 'CA');
|
|
await tester.pumpAndSettle();
|
|
expect(find.text('en_CA TextDirection.ltr'), findsOneWidget);
|
|
|
|
await tester.binding.setLocale('ar', 'EG');
|
|
await tester.pumpAndSettle();
|
|
expect(find.text('ar_EG TextDirection.rtl'), findsOneWidget);
|
|
|
|
await tester.binding.setLocale('da', 'DA');
|
|
await tester.pumpAndSettle();
|
|
expect(find.text('da_DA TextDirection.ltr'), findsOneWidget);
|
|
});
|
|
|
|
testWidgets('Localizations.override widget overrides parent\'s DefaultWidgetLocalizations', (WidgetTester tester) async {
|
|
await tester.pumpWidget(
|
|
buildFrame(
|
|
// Accept whatever locale we're given
|
|
localeResolutionCallback: (Locale locale, Iterable<Locale> supportedLocales) => locale,
|
|
buildContent: (BuildContext context) {
|
|
return new Localizations.override(
|
|
context: context,
|
|
delegates: const <OnlyRTLDefaultWidgetsLocalizationsDelegate>[
|
|
// Override: no matter what the locale, textDirection is always RTL.
|
|
OnlyRTLDefaultWidgetsLocalizationsDelegate(),
|
|
],
|
|
child: new Builder(
|
|
builder: (BuildContext context) {
|
|
final Locale locale = Localizations.localeOf(context);
|
|
final TextDirection direction = WidgetsLocalizations.of(context).textDirection;
|
|
return new Text('$locale $direction');
|
|
},
|
|
),
|
|
);
|
|
}
|
|
)
|
|
);
|
|
|
|
// Initial WidgetTester locale is new Locale('', '')
|
|
await tester.pumpAndSettle();
|
|
expect(find.text('_ TextDirection.rtl'), findsOneWidget);
|
|
|
|
await tester.binding.setLocale('en', 'CA');
|
|
await tester.pumpAndSettle();
|
|
expect(find.text('en_CA TextDirection.rtl'), findsOneWidget);
|
|
|
|
await tester.binding.setLocale('ar', 'EG');
|
|
await tester.pumpAndSettle();
|
|
expect(find.text('ar_EG TextDirection.rtl'), findsOneWidget);
|
|
|
|
await tester.binding.setLocale('da', 'DA');
|
|
await tester.pumpAndSettle();
|
|
expect(find.text('da_DA TextDirection.rtl'), findsOneWidget);
|
|
});
|
|
|
|
testWidgets('WidgetsApp overrides DefaultWidgetLocalizations', (WidgetTester tester) async {
|
|
await tester.pumpWidget(
|
|
buildFrame(
|
|
// Accept whatever locale we're given
|
|
localeResolutionCallback: (Locale locale, Iterable<Locale> supportedLocales) => locale,
|
|
delegates: <OnlyRTLDefaultWidgetsLocalizationsDelegate>[
|
|
const OnlyRTLDefaultWidgetsLocalizationsDelegate(),
|
|
],
|
|
buildContent: (BuildContext context) {
|
|
final Locale locale = Localizations.localeOf(context);
|
|
final TextDirection direction = WidgetsLocalizations.of(context).textDirection;
|
|
return new Text('$locale $direction');
|
|
}
|
|
)
|
|
);
|
|
|
|
// Initial WidgetTester locale is new Locale('', '')
|
|
await tester.pumpAndSettle();
|
|
expect(find.text('_ TextDirection.rtl'), findsOneWidget);
|
|
|
|
await tester.binding.setLocale('en', 'CA');
|
|
await tester.pumpAndSettle();
|
|
expect(find.text('en_CA TextDirection.rtl'), findsOneWidget);
|
|
|
|
await tester.binding.setLocale('ar', 'EG');
|
|
await tester.pumpAndSettle();
|
|
expect(find.text('ar_EG TextDirection.rtl'), findsOneWidget);
|
|
|
|
await tester.binding.setLocale('da', 'DA');
|
|
await tester.pumpAndSettle();
|
|
expect(find.text('da_DA TextDirection.rtl'), findsOneWidget);
|
|
});
|
|
|
|
}
|