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// Copyright 2016 The Chromium 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_test/flutter_test.dart';
void main() {
testWidgets('FlexibleSpaceBar centers title on iOS', (WidgetTester tester) async {
await tester.pumpWidget(
new MaterialApp(
theme: new ThemeData(platform: TargetPlatform.android),
home: new Scaffold(
appBar: new AppBar(
flexibleSpace: const FlexibleSpaceBar(
title: Text('X')
)
)
)
)
);
final Finder title = find.text('X');
Offset center = tester.getCenter(title);
Size size = tester.getSize(title);
expect(center.dx, lessThan(400.0 - size.width / 2.0));
// Clear the widget tree to avoid animating between Android and iOS.
await tester.pumpWidget(new Container(key: new UniqueKey()));
await tester.pumpWidget(
new MaterialApp(
theme: new ThemeData(platform: TargetPlatform.iOS),
home: new Scaffold(
appBar: new AppBar(
flexibleSpace: const FlexibleSpaceBar(
title: Text('X')
)
)
)
)
);
center = tester.getCenter(title);
size = tester.getSize(title);
expect(center.dx, greaterThan(400.0 - size.width / 2.0));
expect(center.dx, lessThan(400.0 + size.width / 2.0));
});
}