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// 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_localizations/flutter_localizations.dart';
import 'package:flutter_test/flutter_test.dart';
void main() {
testWidgets('Text baseline with CJK locale', (WidgetTester tester) async {
// This test in combination with 'Text baseline with EN locale' verify the baselines
// used to align text with ideographic baselines are reasonable. We are currently
// using the alphabetic baseline to lay out as the ideographic baseline is not yet
// properly implemented. When the ideographic baseline is better defined and implemented,
// the values of this test should change very slightly. See the issue this is based off
// of: https://github.com/flutter/flutter/issues/25782.
final Key targetKey = UniqueKey();
await tester.pumpWidget(
MaterialApp(
theme: ThemeData(useMaterial3: true),
routes: <String, WidgetBuilder>{
'/next': (BuildContext context) {
return const Text('Next');
},
},
localizationsDelegates: GlobalMaterialLocalizations.delegates,
supportedLocales: const <Locale>[
Locale('en', 'US'),
Locale('es', 'ES'),
Locale('zh', 'CN'),
],
locale: const Locale('zh', 'CN'),
home: Material(
child: Center(
child: Builder(
key: targetKey,
builder: (BuildContext context) {
return PopupMenuButton<int>(
onSelected: (int value) {
Navigator.pushNamed(context, '/next');
},
itemBuilder: (BuildContext context) {
return <PopupMenuItem<int>>[
const PopupMenuItem<int>(
value: 1,
child: Text(
'hello, world',
style: TextStyle(color: Colors.blue),
),
),
const PopupMenuItem<int>(
value: 2,
child: Text(
'你好，世界',
style: TextStyle(color: Colors.blue),
),
),
];
},
);
},
),
),
),
),
);
await tester.tap(find.byKey(targetKey));
await tester.pumpAndSettle();
expect(find.text('hello, world'), findsOneWidget);
expect(find.text('你好，世界'), findsOneWidget);
Offset topLeft = tester.getTopLeft(find.text('hello, world'));
Offset topRight = tester.getTopRight(find.text('hello, world'));
Offset bottomLeft = tester.getBottomLeft(find.text('hello, world'));
Offset bottomRight = tester.getBottomRight(find.text('hello, world'));
expect(topLeft, const Offset(392.0, 298.0));
expect(topRight, const Offset(562.0, 298.0));
expect(bottomLeft, const Offset(392.0, 318.0));
expect(bottomRight, const Offset(562.0, 318.0));
topLeft = tester.getTopLeft(find.text('你好，世界'));
topRight = tester.getTopRight(find.text('你好，世界'));
bottomLeft = tester.getBottomLeft(find.text('你好，世界'));
bottomRight = tester.getBottomRight(find.text('你好，世界'));
expect(topLeft, const Offset(392.0, 346.0));
expect(topRight, const Offset(463.0, 346.0));
expect(bottomLeft, const Offset(392.0, 366.0));
expect(bottomRight, const Offset(463.0, 366.0));
});
testWidgets('Text baseline with EN locale', (WidgetTester tester) async {
// This test in combination with 'Text baseline with CJK locale' verify the baselines
// used to align text with ideographic baselines are reasonable. We are currently
// using the alphabetic baseline to lay out as the ideographic baseline is not yet
// properly implemented. When the ideographic baseline is better defined and implemented,
// the values of this test should change very slightly. See the issue this is based off
// of: https://github.com/flutter/flutter/issues/25782.
final Key targetKey = UniqueKey();
await tester.pumpWidget(
MaterialApp(
theme: ThemeData(useMaterial3: true),
routes: <String, WidgetBuilder>{
'/next': (BuildContext context) {
return const Text('Next');
},
},
localizationsDelegates: GlobalMaterialLocalizations.delegates,
supportedLocales: const <Locale>[
Locale('en', 'US'),
Locale('es', 'ES'),
Locale('zh', 'CN'),
],
locale: const Locale('en', 'US'),
home: Material(
child: Center(
child: Builder(
key: targetKey,
builder: (BuildContext context) {
return PopupMenuButton<int>(
onSelected: (int value) {
Navigator.pushNamed(context, '/next');
},
itemBuilder: (BuildContext context) {
return <PopupMenuItem<int>>[
const PopupMenuItem<int>(
value: 1,
child: Text(
'hello, world',
style: TextStyle(color: Colors.blue),
),
),
const PopupMenuItem<int>(
value: 2,
child: Text(
'你好，世界',
style: TextStyle(color: Colors.blue),
),
),
];
},
);
},
),
),
),
),
);
await tester.tap(find.byKey(targetKey));
await tester.pumpAndSettle();
expect(find.text('hello, world'), findsOneWidget);
expect(find.text('你好，世界'), findsOneWidget);
Offset topLeft = tester.getTopLeft(find.text('hello, world'));
Offset topRight = tester.getTopRight(find.text('hello, world'));
Offset bottomLeft = tester.getBottomLeft(find.text('hello, world'));
Offset bottomRight = tester.getBottomRight(find.text('hello, world'));
expect(topLeft, const Offset(392.0, 298.0));
expect(topRight, const Offset(562.0, 298.0));
expect(bottomLeft, const Offset(392.0, 318.0));
expect(bottomRight, const Offset(562.0, 318.0));
topLeft = tester.getTopLeft(find.text('你好，世界'));
topRight = tester.getTopRight(find.text('你好，世界'));
bottomLeft = tester.getBottomLeft(find.text('你好，世界'));
bottomRight = tester.getBottomRight(find.text('你好，世界'));
expect(topLeft, const Offset(392.0, 346.0));
expect(topRight, const Offset(463.0, 346.0));
expect(bottomLeft, const Offset(392.0, 366.0));
expect(bottomRight, const Offset(463.0, 366.0));
});
}