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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_test/flutter_test.dart';
void main() {
TestWidgetsFlutterBinding.ensureInitialized();
testWidgets('position in the toolbar changes width', (WidgetTester tester) async {
late StateSetter setState;
int index = 1;
int total = 3;
await tester.pumpWidget(
MaterialApp(
home: Scaffold(
body: Center(
child: StatefulBuilder(
builder: (BuildContext context, StateSetter setter) {
setState = setter;
return TextSelectionToolbarTextButton(
padding: TextSelectionToolbarTextButton.getPadding(index, total),
child: const Text('button'),
);
},
),
),
),
),
);
final Size middleSize = tester.getSize(find.byType(TextSelectionToolbarTextButton));
setState(() {
index = 0;
total = 3;
});
await tester.pump();
final Size firstSize = tester.getSize(find.byType(TextSelectionToolbarTextButton));
expect(firstSize.width, greaterThan(middleSize.width));
setState(() {
index = 2;
total = 3;
});
await tester.pump();
final Size lastSize = tester.getSize(find.byType(TextSelectionToolbarTextButton));
expect(lastSize.width, greaterThan(middleSize.width));
expect(lastSize.width, equals(firstSize.width));
setState(() {
index = 0;
total = 1;
});
await tester.pump();
final Size onlySize = tester.getSize(find.byType(TextSelectionToolbarTextButton));
expect(onlySize.width, greaterThan(middleSize.width));
expect(onlySize.width, greaterThan(firstSize.width));
expect(onlySize.width, greaterThan(lastSize.width));
});
}