mirror of
https://github.com/flutter/flutter
synced 2024-10-13 11:42:54 +00:00
aba0379dcc
This is not a grand refactor yet, it's just cleaning up what we have already, so that people who keep using this API (e.g. dialogs) have something coherent to deal with. The major changes are that Navigator and NavigatorState have the same API now, that most of the examples use `<void>` instead of `<Null>`, that the navigator observer can see replaces, and that the `settings` is moved from ModalRoute to Route. I also cleaned up some of the API documentation.
293 lines
9.7 KiB
Dart
293 lines
9.7 KiB
Dart
// Copyright 2016 The Chromium 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/foundation.dart';
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import 'package:flutter/material.dart';
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import 'package:flutter_localizations/flutter_localizations.dart';
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import 'package:flutter_test/flutter_test.dart';
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class FooMaterialLocalizations extends GlobalMaterialLocalizations {
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FooMaterialLocalizations(Locale locale, this.backButtonTooltip) : super(locale);
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@override
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final String backButtonTooltip;
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}
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class FooMaterialLocalizationsDelegate extends LocalizationsDelegate<MaterialLocalizations> {
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const FooMaterialLocalizationsDelegate({
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this.supportedLanguage: 'en',
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this.backButtonTooltip: 'foo'
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});
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final String supportedLanguage;
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final String backButtonTooltip;
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@override
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bool isSupported(Locale locale) {
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return supportedLanguage == 'allLanguages' ? true : locale.languageCode == supportedLanguage;
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}
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@override
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Future<FooMaterialLocalizations> load(Locale locale) {
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return new SynchronousFuture<FooMaterialLocalizations>(new FooMaterialLocalizations(locale, backButtonTooltip));
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}
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@override
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bool shouldReload(FooMaterialLocalizationsDelegate 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: GlobalMaterialLocalizations.delegates,
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WidgetBuilder buildContent,
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LocaleResolutionCallback localeResolutionCallback,
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Iterable<Locale> supportedLocales: const <Locale>[
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const Locale('en', 'US'),
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const Locale('es', 'es'),
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],
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}) {
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return new MaterialApp(
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color: const Color(0xFFFFFFFF),
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locale: locale,
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supportedLocales: supportedLocales,
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localizationsDelegates: delegates,
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localeResolutionCallback: localeResolutionCallback,
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onGenerateRoute: (RouteSettings settings) {
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return new MaterialPageRoute<void>(
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builder: (BuildContext context) {
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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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void main() {
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testWidgets('Locale fallbacks', (WidgetTester tester) async {
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final Key textKey = new UniqueKey();
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await tester.pumpWidget(
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buildFrame(
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buildContent: (BuildContext context) {
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return new Text(
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MaterialLocalizations.of(context).backButtonTooltip,
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key: textKey,
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);
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}
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)
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);
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expect(tester.widget<Text>(find.byKey(textKey)).data, 'Back');
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// Unrecognized locale falls back to 'en'
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await tester.binding.setLocale('foo', 'bar');
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await tester.pump();
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expect(tester.widget<Text>(find.byKey(textKey)).data, 'Back');
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// Spanish Bolivia locale, falls back to just 'es'
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await tester.binding.setLocale('es', 'bo');
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await tester.pump();
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expect(tester.widget<Text>(find.byKey(textKey)).data, 'Atrás');
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});
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testWidgets('Localizations.override widget tracks parent\'s locale', (WidgetTester tester) async {
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Widget buildLocaleFrame(Locale locale) {
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return buildFrame(
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locale: locale,
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buildContent: (BuildContext context) {
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return new Localizations.override(
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context: context,
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child: new Builder(
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builder: (BuildContext context) {
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// No MaterialLocalizations are defined for the first Localizations
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// ancestor, so we should get the values from the default one, i.e.
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// the one created by WidgetsApp via the LocalizationsDelegate
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// provided by MaterialApp.
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return new Text(MaterialLocalizations.of(context).backButtonTooltip);
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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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await tester.pumpWidget(buildLocaleFrame(const Locale('en', 'US')));
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expect(find.text('Back'), findsOneWidget);
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await tester.pumpWidget(buildLocaleFrame(const Locale('de', 'DE')));
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expect(find.text('Zurück'), findsOneWidget);
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await tester.pumpWidget(buildLocaleFrame(const Locale('zh', 'CN')));
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expect(find.text('返回'), findsOneWidget);
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});
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testWidgets('Localizations.override widget with hardwired locale', (WidgetTester tester) async {
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Widget buildLocaleFrame(Locale locale) {
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return buildFrame(
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locale: locale,
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buildContent: (BuildContext context) {
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return new Localizations.override(
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context: context,
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locale: const Locale('en', 'US'),
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child: new Builder(
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builder: (BuildContext context) {
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// No MaterialLocalizations are defined for the Localizations.override
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// ancestor, so we should get all values from the default one, i.e.
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// the one created by WidgetsApp via the LocalizationsDelegate
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// provided by MaterialApp.
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return new Text(MaterialLocalizations.of(context).backButtonTooltip);
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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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await tester.pumpWidget(buildLocaleFrame(const Locale('en', 'US')));
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expect(find.text('Back'), findsOneWidget);
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await tester.pumpWidget(buildLocaleFrame(const Locale('de', 'DE')));
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expect(find.text('Back'), findsOneWidget);
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await tester.pumpWidget(buildLocaleFrame(const Locale('zh', 'CN')));
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expect(find.text('Back'), findsOneWidget);
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});
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testWidgets('MaterialApp adds MaterialLocalizations for additional languages', (WidgetTester tester) async {
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final Key textKey = new UniqueKey();
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await tester.pumpWidget(
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buildFrame(
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delegates: <FooMaterialLocalizationsDelegate>[
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const FooMaterialLocalizationsDelegate(supportedLanguage: 'fr', backButtonTooltip: 'FR'),
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const FooMaterialLocalizationsDelegate(supportedLanguage: 'de', backButtonTooltip: 'DE'),
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],
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supportedLocales: const <Locale>[
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const Locale('en', ''),
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const Locale('fr', ''),
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const Locale('de', ''),
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],
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buildContent: (BuildContext context) {
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// Should always be 'foo', no matter what the locale is
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return new Text(
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MaterialLocalizations.of(context).backButtonTooltip,
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key: textKey,
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);
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}
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)
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);
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expect(tester.widget<Text>(find.byKey(textKey)).data, 'Back');
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await tester.binding.setLocale('fr', 'CA');
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await tester.pump();
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expect(find.text('FR'), findsOneWidget);
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await tester.binding.setLocale('de', 'DE');
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await tester.pump();
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expect(find.text('DE'), findsOneWidget);
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});
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testWidgets('MaterialApp overrides MaterialLocalizations for all locales', (WidgetTester tester) async {
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final Key textKey = new UniqueKey();
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await tester.pumpWidget(
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buildFrame(
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// Accept whatever locale we're given
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localeResolutionCallback: (Locale locale, Iterable<Locale> supportedLocales) => locale,
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delegates: <FooMaterialLocalizationsDelegate>[
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const FooMaterialLocalizationsDelegate(supportedLanguage: 'allLanguages'),
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],
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buildContent: (BuildContext context) {
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// Should always be 'foo', no matter what the locale is
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return new Text(
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MaterialLocalizations.of(context).backButtonTooltip,
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key: textKey,
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);
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}
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)
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);
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expect(tester.widget<Text>(find.byKey(textKey)).data, 'foo');
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await tester.binding.setLocale('zh', 'CN');
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await tester.pump();
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expect(find.text('foo'), findsOneWidget);
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await tester.binding.setLocale('de', 'DE');
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await tester.pump();
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expect(find.text('foo'), findsOneWidget);
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});
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testWidgets('MaterialApp overrides MaterialLocalizations for default locale', (WidgetTester tester) async {
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final Key textKey = new UniqueKey();
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await tester.pumpWidget(
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buildFrame(
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delegates: <FooMaterialLocalizationsDelegate>[
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const FooMaterialLocalizationsDelegate(supportedLanguage: 'en'),
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],
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// supportedLocales not specified, so all locales resolve to 'en'
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buildContent: (BuildContext context) {
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return new Text(
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MaterialLocalizations.of(context).backButtonTooltip,
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key: textKey,
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);
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}
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)
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);
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// Unsupported locale '_' (the widget tester's default) resolves to 'en'.
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expect(tester.widget<Text>(find.byKey(textKey)).data, 'foo');
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// Unsupported locale 'zh' resolves to 'en'.
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await tester.binding.setLocale('zh', 'CN');
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await tester.pump();
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expect(find.text('foo'), findsOneWidget);
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// Unsupported locale 'de' resolves to 'en'.
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await tester.binding.setLocale('de', 'DE');
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await tester.pump();
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expect(find.text('foo'), findsOneWidget);
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});
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testWidgets('deprecated Android/Java locales are modernized', (WidgetTester tester) async {
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final Key textKey = new UniqueKey();
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await tester.pumpWidget(
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buildFrame(
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supportedLocales: <Locale>[
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const Locale('en', 'US'),
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const Locale('he', 'IL'),
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const Locale('yi', 'IL'),
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const Locale('id', 'JV'),
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],
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buildContent: (BuildContext context) {
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return new Text(
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'${Localizations.localeOf(context)}',
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key: textKey,
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);
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},
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)
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);
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expect(tester.widget<Text>(find.byKey(textKey)).data, 'en_US');
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// Hebrew was iw (ISO-639) is he (ISO-639-1)
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await tester.binding.setLocale('iw', 'IL');
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await tester.pump();
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expect(tester.widget<Text>(find.byKey(textKey)).data, 'he_IL');
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// Yiddish was ji (ISO-639) is yi (ISO-639-1)
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await tester.binding.setLocale('ji', 'IL');
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await tester.pump();
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expect(tester.widget<Text>(find.byKey(textKey)).data, 'yi_IL');
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// Indonesian was in (ISO-639) is id (ISO-639-1)
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await tester.binding.setLocale('in', 'JV');
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await tester.pump();
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expect(tester.widget<Text>(find.byKey(textKey)).data, 'id_JV');
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});
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}
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