| // 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_test/flutter_test.dart'; |
| import 'package:flutter/rendering.dart'; |
| import 'package:flutter/widgets.dart'; |
| |
| void main() { |
| testWidgets('FractionallySizedBox', (WidgetTester tester) async { |
| final GlobalKey inner = GlobalKey(); |
| await tester.pumpWidget(OverflowBox( |
| minWidth: 0.0, |
| maxWidth: 100.0, |
| minHeight: 0.0, |
| maxHeight: 100.0, |
| alignment: const Alignment(-1.0, -1.0), |
| child: Center( |
| child: FractionallySizedBox( |
| widthFactor: 0.5, |
| heightFactor: 0.25, |
| child: Container( |
| key: inner |
| ), |
| ), |
| ), |
| )); |
| final RenderBox box = inner.currentContext.findRenderObject() as RenderBox; |
| expect(box.size, equals(const Size(50.0, 25.0))); |
| expect(box.localToGlobal(Offset.zero), equals(const Offset(25.0, 37.5))); |
| }); |
| |
| testWidgets('FractionallySizedBox alignment', (WidgetTester tester) async { |
| final GlobalKey inner = GlobalKey(); |
| await tester.pumpWidget(Directionality( |
| textDirection: TextDirection.rtl, |
| child: FractionallySizedBox( |
| widthFactor: 0.5, |
| heightFactor: 0.5, |
| alignment: Alignment.topRight, |
| child: Placeholder(key: inner), |
| ), |
| )); |
| final RenderBox box = inner.currentContext.findRenderObject() as RenderBox; |
| expect(box.size, equals(const Size(400.0, 300.0))); |
| expect(box.localToGlobal(box.size.center(Offset.zero)), equals(const Offset(800.0 - 400.0 / 2.0, 0.0 + 300.0 / 2.0))); |
| }); |
| |
| testWidgets('FractionallySizedBox alignment (direction-sensitive)', (WidgetTester tester) async { |
| final GlobalKey inner = GlobalKey(); |
| await tester.pumpWidget(Directionality( |
| textDirection: TextDirection.rtl, |
| child: FractionallySizedBox( |
| widthFactor: 0.5, |
| heightFactor: 0.5, |
| alignment: AlignmentDirectional.topEnd, |
| child: Placeholder(key: inner), |
| ), |
| )); |
| final RenderBox box = inner.currentContext.findRenderObject() as RenderBox; |
| expect(box.size, equals(const Size(400.0, 300.0))); |
| expect(box.localToGlobal(box.size.center(Offset.zero)), equals(const Offset(0.0 + 400.0 / 2.0, 0.0 + 300.0 / 2.0))); |
| }); |
| |
| testWidgets('OverflowBox alignment with FractionallySizedBox', (WidgetTester tester) async { |
| final GlobalKey inner = GlobalKey(); |
| await tester.pumpWidget(Directionality( |
| textDirection: TextDirection.rtl, |
| child: OverflowBox( |
| minWidth: 0.0, |
| maxWidth: 100.0, |
| minHeight: 0.0, |
| maxHeight: 100.0, |
| alignment: const AlignmentDirectional(1.0, -1.0), |
| child: Center( |
| child: FractionallySizedBox( |
| widthFactor: 0.5, |
| heightFactor: 0.25, |
| child: Container( |
| key: inner |
| ), |
| ), |
| ), |
| ), |
| )); |
| final RenderBox box = inner.currentContext.findRenderObject() as RenderBox; |
| expect(box.size, equals(const Size(50.0, 25.0))); |
| expect(box.localToGlobal(Offset.zero), equals(const Offset(25.0, 37.5))); |
| }); |
| } |