// Copyright 2015 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/rendering.dart'; import 'package:test/test.dart'; import 'rendering_tester.dart'; void main() { test('Stack can layout with top, right, bottom, left 0.0', () { final RenderBox size = new RenderConstrainedBox( additionalConstraints: new BoxConstraints.tight(const Size(100.0, 100.0)) ); final RenderBox red = new RenderDecoratedBox( decoration: const BoxDecoration( backgroundColor: const Color(0xFFFF0000) ), child: size ); final RenderBox green = new RenderDecoratedBox( decoration: const BoxDecoration( backgroundColor: const Color(0xFFFF0000) ) ); final RenderBox stack = new RenderStack(children: <RenderBox>[red, green]); final StackParentData greenParentData = green.parentData; greenParentData ..top = 0.0 ..right = 0.0 ..bottom = 0.0 ..left = 0.0; layout(stack, constraints: const BoxConstraints()); expect(stack.size.width, equals(100.0)); expect(stack.size.height, equals(100.0)); expect(red.size.width, equals(100.0)); expect(red.size.height, equals(100.0)); expect(green.size.width, equals(100.0)); expect(green.size.height, equals(100.0)); }); }