yoga/csharp/tests/Facebook.Yoga/YGMarginTest.cs

/**
 * Copyright (c) 2014-present, Facebook, Inc.
 * All rights reserved.
 *
 * This source code is licensed under the BSD-style license found in the
 * LICENSE file in the root directory of this source tree. An additional grant
 * of patent rights can be found in the PATENTS file in the same directory.
 */

// @Generated by gentest/gentest.rb from gentest/fixtures/YGMarginTest.html

using System;
using NUnit.Framework;

namespace Facebook.Yoga
{
    [TestFixture]
    public class YGMarginTest
    {
        [Test]
        public void Test_margin_start()
        {
            YogaConfig config = new YogaConfig();

            YogaNode root = new YogaNode(config);
            root.FlexDirection = YogaFlexDirection.Row;
            root.Width = 100;
            root.Height = 100;

            YogaNode root_child0 = new YogaNode(config);
            root_child0.MarginStart = 10;
            root_child0.Width = 10;
            root.Insert(0, root_child0);
            root.StyleDirection = YogaDirection.LTR;
            root.CalculateLayout();

            Assert.AreEqual(0f, root.LayoutX);
            Assert.AreEqual(0f, root.LayoutY);
            Assert.AreEqual(100f, root.LayoutWidth);
            Assert.AreEqual(100f, root.LayoutHeight);

            Assert.AreEqual(10f, root_child0.LayoutX);
            Assert.AreEqual(0f, root_child0.LayoutY);
            Assert.AreEqual(10f, root_child0.LayoutWidth);
            Assert.AreEqual(100f, root_child0.LayoutHeight);

            root.StyleDirection = YogaDirection.RTL;
            root.CalculateLayout();

            Assert.AreEqual(0f, root.LayoutX);
            Assert.AreEqual(0f, root.LayoutY);
            Assert.AreEqual(100f, root.LayoutWidth);
            Assert.AreEqual(100f, root.LayoutHeight);

            Assert.AreEqual(80f, root_child0.LayoutX);
            Assert.AreEqual(0f, root_child0.LayoutY);
            Assert.AreEqual(10f, root_child0.LayoutWidth);
            Assert.AreEqual(100f, root_child0.LayoutHeight);
        }

        [Test]
        public void Test_margin_top()
        {
            YogaConfig config = new YogaConfig();

            YogaNode root = new YogaNode(config);
            root.Width = 100;
            root.Height = 100;

            YogaNode root_child0 = new YogaNode(config);
            root_child0.MarginTop = 10;
            root_child0.Height = 10;
            root.Insert(0, root_child0);
            root.StyleDirection = YogaDirection.LTR;
            root.CalculateLayout();

            Assert.AreEqual(0f, root.LayoutX);
            Assert.AreEqual(0f, root.LayoutY);
            Assert.AreEqual(100f, root.LayoutWidth);
            Assert.AreEqual(100f, root.LayoutHeight);

            Assert.AreEqual(0f, root_child0.LayoutX);
            Assert.AreEqual(10f, root_child0.LayoutY);
            Assert.AreEqual(100f, root_child0.LayoutWidth);
            Assert.AreEqual(10f, root_child0.LayoutHeight);

            root.StyleDirection = YogaDirection.RTL;
            root.CalculateLayout();

            Assert.AreEqual(0f, root.LayoutX);
            Assert.AreEqual(0f, root.LayoutY);
            Assert.AreEqual(100f, root.LayoutWidth);
            Assert.AreEqual(100f, root.LayoutHeight);

            Assert.AreEqual(0f, root_child0.LayoutX);
            Assert.AreEqual(10f, root_child0.LayoutY);
            Assert.AreEqual(100f, root_child0.LayoutWidth);
            Assert.AreEqual(10f, root_child0.LayoutHeight);
        }

        [Test]
        public void Test_margin_end()
        {
            YogaConfig config = new YogaConfig();

            YogaNode root = new YogaNode(config);
            root.FlexDirection = YogaFlexDirection.Row;
            root.JustifyContent = YogaJustify.FlexEnd;
            root.Width = 100;
            root.Height = 100;

            YogaNode root_child0 = new YogaNode(config);
            root_child0.MarginEnd = 10;
            root_child0.Width = 10;
            root.Insert(0, root_child0);
            root.StyleDirection = YogaDirection.LTR;
            root.CalculateLayout();

            Assert.AreEqual(0f, root.LayoutX);
            Assert.AreEqual(0f, root.LayoutY);
            Assert.AreEqual(100f, root.LayoutWidth);
            Assert.AreEqual(100f, root.LayoutHeight);

            Assert.AreEqual(80f, root_child0.LayoutX);
            Assert.AreEqual(0f, root_child0.LayoutY);
            Assert.AreEqual(10f, root_child0.LayoutWidth);
            Assert.AreEqual(100f, root_child0.LayoutHeight);

            root.StyleDirection = YogaDirection.RTL;
            root.CalculateLayout();

            Assert.AreEqual(0f, root.LayoutX);
            Assert.AreEqual(0f, root.LayoutY);
            Assert.AreEqual(100f, root.LayoutWidth);
            Assert.AreEqual(100f, root.LayoutHeight);

            Assert.AreEqual(10f, root_child0.LayoutX);
            Assert.AreEqual(0f, root_child0.LayoutY);
            Assert.AreEqual(10f, root_child0.LayoutWidth);
            Assert.AreEqual(100f, root_child0.LayoutHeight);
        }

        [Test]
        public void Test_margin_bottom()
        {
            YogaConfig config = new YogaConfig();

            YogaNode root = new YogaNode(config);
            root.JustifyContent = YogaJustify.FlexEnd;
            root.Width = 100;
            root.Height = 100;

            YogaNode root_child0 = new YogaNode(config);
            root_child0.MarginBottom = 10;
            root_child0.Height = 10;
            root.Insert(0, root_child0);
            root.StyleDirection = YogaDirection.LTR;
            root.CalculateLayout();

            Assert.AreEqual(0f, root.LayoutX);
            Assert.AreEqual(0f, root.LayoutY);
            Assert.AreEqual(100f, root.LayoutWidth);
            Assert.AreEqual(100f, root.LayoutHeight);

            Assert.AreEqual(0f, root_child0.LayoutX);
            Assert.AreEqual(80f, root_child0.LayoutY);
            Assert.AreEqual(100f, root_child0.LayoutWidth);
            Assert.AreEqual(10f, root_child0.LayoutHeight);

            root.StyleDirection = YogaDirection.RTL;
            root.CalculateLayout();

            Assert.AreEqual(0f, root.LayoutX);
            Assert.AreEqual(0f, root.LayoutY);
            Assert.AreEqual(100f, root.LayoutWidth);
            Assert.AreEqual(100f, root.LayoutHeight);

            Assert.AreEqual(0f, root_child0.LayoutX);
            Assert.AreEqual(80f, root_child0.LayoutY);
            Assert.AreEqual(100f, root_child0.LayoutWidth);
            Assert.AreEqual(10f, root_child0.LayoutHeight);
        }

        [Test]
        public void Test_margin_and_flex_row()
        {
            YogaConfig config = new YogaConfig();

            YogaNode root = new YogaNode(config);
            root.FlexDirection = YogaFlexDirection.Row;
            root.Width = 100;
            root.Height = 100;

            YogaNode root_child0 = new YogaNode(config);
            root_child0.FlexGrow = 1;
            root_child0.MarginStart = 10;
            root_child0.MarginEnd = 10;
            root.Insert(0, root_child0);
            root.StyleDirection = YogaDirection.LTR;
            root.CalculateLayout();

            Assert.AreEqual(0f, root.LayoutX);
            Assert.AreEqual(0f, root.LayoutY);
            Assert.AreEqual(100f, root.LayoutWidth);
            Assert.AreEqual(100f, root.LayoutHeight);

            Assert.AreEqual(10f, root_child0.LayoutX);
            Assert.AreEqual(0f, root_child0.LayoutY);
            Assert.AreEqual(80f, root_child0.LayoutWidth);
            Assert.AreEqual(100f, root_child0.LayoutHeight);

            root.StyleDirection = YogaDirection.RTL;
            root.CalculateLayout();

            Assert.AreEqual(0f, root.LayoutX);
            Assert.AreEqual(0f, root.LayoutY);
            Assert.AreEqual(100f, root.LayoutWidth);
            Assert.AreEqual(100f, root.LayoutHeight);

            Assert.AreEqual(10f, root_child0.LayoutX);
            Assert.AreEqual(0f, root_child0.LayoutY);
            Assert.AreEqual(80f, root_child0.LayoutWidth);
            Assert.AreEqual(100f, root_child0.LayoutHeight);
        }

        [Test]
        public void Test_margin_and_flex_column()
        {
            YogaConfig config = new YogaConfig();

            YogaNode root = new YogaNode(config);
            root.Width = 100;
            root.Height = 100;

            YogaNode root_child0 = new YogaNode(config);
            root_child0.FlexGrow = 1;
            root_child0.MarginTop = 10;
            root_child0.MarginBottom = 10;
            root.Insert(0, root_child0);
            root.StyleDirection = YogaDirection.LTR;
            root.CalculateLayout();

            Assert.AreEqual(0f, root.LayoutX);
            Assert.AreEqual(0f, root.LayoutY);
            Assert.AreEqual(100f, root.LayoutWidth);
            Assert.AreEqual(100f, root.LayoutHeight);

            Assert.AreEqual(0f, root_child0.LayoutX);
            Assert.AreEqual(10f, root_child0.LayoutY);
            Assert.AreEqual(100f, root_child0.LayoutWidth);
            Assert.AreEqual(80f, root_child0.LayoutHeight);

            root.StyleDirection = YogaDirection.RTL;
            root.CalculateLayout();

            Assert.AreEqual(0f, root.LayoutX);
            Assert.AreEqual(0f, root.LayoutY);
            Assert.AreEqual(100f, root.LayoutWidth);
            Assert.AreEqual(100f, root.LayoutHeight);

            Assert.AreEqual(0f, root_child0.LayoutX);
            Assert.AreEqual(10f, root_child0.LayoutY);
            Assert.AreEqual(100f, root_child0.LayoutWidth);
            Assert.AreEqual(80f, root_child0.LayoutHeight);
        }

        [Test]
        public void Test_margin_and_stretch_row()
        {
            YogaConfig config = new YogaConfig();

            YogaNode root = new YogaNode(config);
            root.FlexDirection = YogaFlexDirection.Row;
            root.Width = 100;
            root.Height = 100;

            YogaNode root_child0 = new YogaNode(config);
            root_child0.FlexGrow = 1;
            root_child0.MarginTop = 10;
            root_child0.MarginBottom = 10;
            root.Insert(0, root_child0);
            root.StyleDirection = YogaDirection.LTR;
            root.CalculateLayout();

            Assert.AreEqual(0f, root.LayoutX);
            Assert.AreEqual(0f, root.LayoutY);
            Assert.AreEqual(100f, root.LayoutWidth);
            Assert.AreEqual(100f, root.LayoutHeight);

            Assert.AreEqual(0f, root_child0.LayoutX);
            Assert.AreEqual(10f, root_child0.LayoutY);
            Assert.AreEqual(100f, root_child0.LayoutWidth);
            Assert.AreEqual(80f, root_child0.LayoutHeight);

            root.StyleDirection = YogaDirection.RTL;
            root.CalculateLayout();

            Assert.AreEqual(0f, root.LayoutX);
            Assert.AreEqual(0f, root.LayoutY);
            Assert.AreEqual(100f, root.LayoutWidth);
            Assert.AreEqual(100f, root.LayoutHeight);

            Assert.AreEqual(0f, root_child0.LayoutX);
            Assert.AreEqual(10f, root_child0.LayoutY);
            Assert.AreEqual(100f, root_child0.LayoutWidth);
            Assert.AreEqual(80f, root_child0.LayoutHeight);
        }

        [Test]
        public void Test_margin_and_stretch_column()
        {
            YogaConfig config = new YogaConfig();

            YogaNode root = new YogaNode(config);
            root.Width = 100;
            root.Height = 100;

            YogaNode root_child0 = new YogaNode(config);
            root_child0.FlexGrow = 1;
            root_child0.MarginStart = 10;
            root_child0.MarginEnd = 10;
            root.Insert(0, root_child0);
            root.StyleDirection = YogaDirection.LTR;
            root.CalculateLayout();

            Assert.AreEqual(0f, root.LayoutX);
            Assert.AreEqual(0f, root.LayoutY);
            Assert.AreEqual(100f, root.LayoutWidth);
            Assert.AreEqual(100f, root.LayoutHeight);

            Assert.AreEqual(10f, root_child0.LayoutX);
            Assert.AreEqual(0f, root_child0.LayoutY);
            Assert.AreEqual(80f, root_child0.LayoutWidth);
            Assert.AreEqual(100f, root_child0.LayoutHeight);

            root.StyleDirection = YogaDirection.RTL;
            root.CalculateLayout();

            Assert.AreEqual(0f, root.LayoutX);
            Assert.AreEqual(0f, root.LayoutY);
            Assert.AreEqual(100f, root.LayoutWidth);
            Assert.AreEqual(100f, root.LayoutHeight);

            Assert.AreEqual(10f, root_child0.LayoutX);
            Assert.AreEqual(0f, root_child0.LayoutY);
            Assert.AreEqual(80f, root_child0.LayoutWidth);
            Assert.AreEqual(100f, root_child0.LayoutHeight);
        }

        [Test]
        public void Test_margin_with_sibling_row()
        {
            YogaConfig config = new YogaConfig();

            YogaNode root = new YogaNode(config);
            root.FlexDirection = YogaFlexDirection.Row;
            root.Width = 100;
            root.Height = 100;

            YogaNode root_child0 = new YogaNode(config);
            root_child0.FlexGrow = 1;
            root_child0.MarginEnd = 10;
            root.Insert(0, root_child0);

            YogaNode root_child1 = new YogaNode(config);
            root_child1.FlexGrow = 1;
            root.Insert(1, root_child1);
            root.StyleDirection = YogaDirection.LTR;
            root.CalculateLayout();

            Assert.AreEqual(0f, root.LayoutX);
            Assert.AreEqual(0f, root.LayoutY);
            Assert.AreEqual(100f, root.LayoutWidth);
            Assert.AreEqual(100f, root.LayoutHeight);

            Assert.AreEqual(0f, root_child0.LayoutX);
            Assert.AreEqual(0f, root_child0.LayoutY);
            Assert.AreEqual(45f, root_child0.LayoutWidth);
            Assert.AreEqual(100f, root_child0.LayoutHeight);

            Assert.AreEqual(55f, root_child1.LayoutX);
            Assert.AreEqual(0f, root_child1.LayoutY);
            Assert.AreEqual(45f, root_child1.LayoutWidth);
            Assert.AreEqual(100f, root_child1.LayoutHeight);

            root.StyleDirection = YogaDirection.RTL;
            root.CalculateLayout();

            Assert.AreEqual(0f, root.LayoutX);
            Assert.AreEqual(0f, root.LayoutY);
            Assert.AreEqual(100f, root.LayoutWidth);
            Assert.AreEqual(100f, root.LayoutHeight);

            Assert.AreEqual(55f, root_child0.LayoutX);
            Assert.AreEqual(0f, root_child0.LayoutY);
            Assert.AreEqual(45f, root_child0.LayoutWidth);
            Assert.AreEqual(100f, root_child0.LayoutHeight);

            Assert.AreEqual(0f, root_child1.LayoutX);
            Assert.AreEqual(0f, root_child1.LayoutY);
            Assert.AreEqual(45f, root_child1.LayoutWidth);
            Assert.AreEqual(100f, root_child1.LayoutHeight);
        }

        [Test]
        public void Test_margin_with_sibling_column()
        {
            YogaConfig config = new YogaConfig();

            YogaNode root = new YogaNode(config);
            root.Width = 100;
            root.Height = 100;

            YogaNode root_child0 = new YogaNode(config);
            root_child0.FlexGrow = 1;
            root_child0.MarginBottom = 10;
            root.Insert(0, root_child0);

            YogaNode root_child1 = new YogaNode(config);
            root_child1.FlexGrow = 1;
            root.Insert(1, root_child1);
            root.StyleDirection = YogaDirection.LTR;
            root.CalculateLayout();

            Assert.AreEqual(0f, root.LayoutX);
            Assert.AreEqual(0f, root.LayoutY);
            Assert.AreEqual(100f, root.LayoutWidth);
            Assert.AreEqual(100f, root.LayoutHeight);

            Assert.AreEqual(0f, root_child0.LayoutX);
            Assert.AreEqual(0f, root_child0.LayoutY);
            Assert.AreEqual(100f, root_child0.LayoutWidth);
            Assert.AreEqual(45f, root_child0.LayoutHeight);

            Assert.AreEqual(0f, root_child1.LayoutX);
            Assert.AreEqual(55f, root_child1.LayoutY);
            Assert.AreEqual(100f, root_child1.LayoutWidth);
            Assert.AreEqual(45f, root_child1.LayoutHeight);

            root.StyleDirection = YogaDirection.RTL;
            root.CalculateLayout();

            Assert.AreEqual(0f, root.LayoutX);
            Assert.AreEqual(0f, root.LayoutY);
            Assert.AreEqual(100f, root.LayoutWidth);
            Assert.AreEqual(100f, root.LayoutHeight);

            Assert.AreEqual(0f, root_child0.LayoutX);
            Assert.AreEqual(0f, root_child0.LayoutY);
            Assert.AreEqual(100f, root_child0.LayoutWidth);
            Assert.AreEqual(45f, root_child0.LayoutHeight);

            Assert.AreEqual(0f, root_child1.LayoutX);
            Assert.AreEqual(55f, root_child1.LayoutY);
            Assert.AreEqual(100f, root_child1.LayoutWidth);
            Assert.AreEqual(45f, root_child1.LayoutHeight);
        }

        [Test]
        public void Test_margin_auto_bottom()
        {
            YogaConfig config = new YogaConfig();

            YogaNode root = new YogaNode(config);
            root.AlignItems = YogaAlign.Center;
            root.Width = 200;
            root.Height = 200;

            YogaNode root_child0 = new YogaNode(config);
            root_child0.MarginBottom = YogaValue.Auto();
            root_child0.Width = 50;
            root_child0.Height = 50;
            root.Insert(0, root_child0);

            YogaNode root_child1 = new YogaNode(config);
            root_child1.Width = 50;
            root_child1.Height = 50;
            root.Insert(1, root_child1);
            root.StyleDirection = YogaDirection.LTR;
            root.CalculateLayout();

            Assert.AreEqual(0f, root.LayoutX);
            Assert.AreEqual(0f, root.LayoutY);
            Assert.AreEqual(200f, root.LayoutWidth);
            Assert.AreEqual(200f, root.LayoutHeight);

            Assert.AreEqual(75f, root_child0.LayoutX);
            Assert.AreEqual(0f, root_child0.LayoutY);
            Assert.AreEqual(50f, root_child0.LayoutWidth);
            Assert.AreEqual(50f, root_child0.LayoutHeight);

            Assert.AreEqual(75f, root_child1.LayoutX);
            Assert.AreEqual(150f, root_child1.LayoutY);
            Assert.AreEqual(50f, root_child1.LayoutWidth);
            Assert.AreEqual(50f, root_child1.LayoutHeight);

            root.StyleDirection = YogaDirection.RTL;
            root.CalculateLayout();

            Assert.AreEqual(0f, root.LayoutX);
            Assert.AreEqual(0f, root.LayoutY);
            Assert.AreEqual(200f, root.LayoutWidth);
            Assert.AreEqual(200f, root.LayoutHeight);

            Assert.AreEqual(75f, root_child0.LayoutX);
            Assert.AreEqual(0f, root_child0.LayoutY);
            Assert.AreEqual(50f, root_child0.LayoutWidth);
            Assert.AreEqual(50f, root_child0.LayoutHeight);

            Assert.AreEqual(75f, root_child1.LayoutX);
            Assert.AreEqual(150f, root_child1.LayoutY);
            Assert.AreEqual(50f, root_child1.LayoutWidth);
            Assert.AreEqual(50f, root_child1.LayoutHeight);
        }

        [Test]
        public void Test_margin_auto_top()
        {
            YogaConfig config = new YogaConfig();

            YogaNode root = new YogaNode(config);
            root.AlignItems = YogaAlign.Center;
            root.Width = 200;
            root.Height = 200;

            YogaNode root_child0 = new YogaNode(config);
            root_child0.MarginTop = YogaValue.Auto();
            root_child0.Width = 50;
            root_child0.Height = 50;
            root.Insert(0, root_child0);

            YogaNode root_child1 = new YogaNode(config);
            root_child1.Width = 50;
            root_child1.Height = 50;
            root.Insert(1, root_child1);
            root.StyleDirection = YogaDirection.LTR;
            root.CalculateLayout();

            Assert.AreEqual(0f, root.LayoutX);
            Assert.AreEqual(0f, root.LayoutY);
            Assert.AreEqual(200f, root.LayoutWidth);
            Assert.AreEqual(200f, root.LayoutHeight);

            Assert.AreEqual(75f, root_child0.LayoutX);
            Assert.AreEqual(100f, root_child0.LayoutY);
            Assert.AreEqual(50f, root_child0.LayoutWidth);
            Assert.AreEqual(50f, root_child0.LayoutHeight);

            Assert.AreEqual(75f, root_child1.LayoutX);
            Assert.AreEqual(150f, root_child1.LayoutY);
            Assert.AreEqual(50f, root_child1.LayoutWidth);
            Assert.AreEqual(50f, root_child1.LayoutHeight);

            root.StyleDirection = YogaDirection.RTL;
            root.CalculateLayout();

            Assert.AreEqual(0f, root.LayoutX);
            Assert.AreEqual(0f, root.LayoutY);
            Assert.AreEqual(200f, root.LayoutWidth);
            Assert.AreEqual(200f, root.LayoutHeight);

            Assert.AreEqual(75f, root_child0.LayoutX);
            Assert.AreEqual(100f, root_child0.LayoutY);
            Assert.AreEqual(50f, root_child0.LayoutWidth);
            Assert.AreEqual(50f, root_child0.LayoutHeight);

            Assert.AreEqual(75f, root_child1.LayoutX);
            Assert.AreEqual(150f, root_child1.LayoutY);
            Assert.AreEqual(50f, root_child1.LayoutWidth);
            Assert.AreEqual(50f, root_child1.LayoutHeight);
        }

        [Test]
        public void Test_margin_auto_bottom_and_top()
        {
            YogaConfig config = new YogaConfig();

            YogaNode root = new YogaNode(config);
            root.AlignItems = YogaAlign.Center;
            root.Width = 200;
            root.Height = 200;

            YogaNode root_child0 = new YogaNode(config);
            root_child0.MarginTop = YogaValue.Auto();
            root_child0.MarginBottom = YogaValue.Auto();
            root_child0.Width = 50;
            root_child0.Height = 50;
            root.Insert(0, root_child0);

            YogaNode root_child1 = new YogaNode(config);
            root_child1.Width = 50;
            root_child1.Height = 50;
            root.Insert(1, root_child1);
            root.StyleDirection = YogaDirection.LTR;
            root.CalculateLayout();

            Assert.AreEqual(0f, root.LayoutX);
            Assert.AreEqual(0f, root.LayoutY);
            Assert.AreEqual(200f, root.LayoutWidth);
            Assert.AreEqual(200f, root.LayoutHeight);

            Assert.AreEqual(75f, root_child0.LayoutX);
            Assert.AreEqual(50f, root_child0.LayoutY);
            Assert.AreEqual(50f, root_child0.LayoutWidth);
            Assert.AreEqual(50f, root_child0.LayoutHeight);

            Assert.AreEqual(75f, root_child1.LayoutX);
            Assert.AreEqual(150f, root_child1.LayoutY);
            Assert.AreEqual(50f, root_child1.LayoutWidth);
            Assert.AreEqual(50f, root_child1.LayoutHeight);

            root.StyleDirection = YogaDirection.RTL;
            root.CalculateLayout();

            Assert.AreEqual(0f, root.LayoutX);
            Assert.AreEqual(0f, root.LayoutY);
            Assert.AreEqual(200f, root.LayoutWidth);
            Assert.AreEqual(200f, root.LayoutHeight);

            Assert.AreEqual(75f, root_child0.LayoutX);
            Assert.AreEqual(50f, root_child0.LayoutY);
            Assert.AreEqual(50f, root_child0.LayoutWidth);
            Assert.AreEqual(50f, root_child0.LayoutHeight);

            Assert.AreEqual(75f, root_child1.LayoutX);
            Assert.AreEqual(150f, root_child1.LayoutY);
            Assert.AreEqual(50f, root_child1.LayoutWidth);
            Assert.AreEqual(50f, root_child1.LayoutHeight);
        }

        [Test]
        public void Test_margin_auto_bottom_and_top_justify_center()
        {
            YogaConfig config = new YogaConfig();

            YogaNode root = new YogaNode(config);
            root.JustifyContent = YogaJustify.Center;
            root.Width = 200;
            root.Height = 200;

            YogaNode root_child0 = new YogaNode(config);
            root_child0.MarginTop = YogaValue.Auto();
            root_child0.MarginBottom = YogaValue.Auto();
            root_child0.Width = 50;
            root_child0.Height = 50;
            root.Insert(0, root_child0);

            YogaNode root_child1 = new YogaNode(config);
            root_child1.Width = 50;
            root_child1.Height = 50;
            root.Insert(1, root_child1);
            root.StyleDirection = YogaDirection.LTR;
            root.CalculateLayout();

            Assert.AreEqual(0f, root.LayoutX);
            Assert.AreEqual(0f, root.LayoutY);
            Assert.AreEqual(200f, root.LayoutWidth);
            Assert.AreEqual(200f, root.LayoutHeight);

            Assert.AreEqual(0f, root_child0.LayoutX);
            Assert.AreEqual(50f, root_child0.LayoutY);
            Assert.AreEqual(50f, root_child0.LayoutWidth);
            Assert.AreEqual(50f, root_child0.LayoutHeight);

            Assert.AreEqual(0f, root_child1.LayoutX);
            Assert.AreEqual(150f, root_child1.LayoutY);
            Assert.AreEqual(50f, root_child1.LayoutWidth);
            Assert.AreEqual(50f, root_child1.LayoutHeight);

            root.StyleDirection = YogaDirection.RTL;
            root.CalculateLayout();

            Assert.AreEqual(0f, root.LayoutX);
            Assert.AreEqual(0f, root.LayoutY);
            Assert.AreEqual(200f, root.LayoutWidth);
            Assert.AreEqual(200f, root.LayoutHeight);

            Assert.AreEqual(150f, root_child0.LayoutX);
            Assert.AreEqual(50f, root_child0.LayoutY);
            Assert.AreEqual(50f, root_child0.LayoutWidth);
            Assert.AreEqual(50f, root_child0.LayoutHeight);

            Assert.AreEqual(150f, root_child1.LayoutX);
            Assert.AreEqual(150f, root_child1.LayoutY);
            Assert.AreEqual(50f, root_child1.LayoutWidth);
            Assert.AreEqual(50f, root_child1.LayoutHeight);
        }

        [Test]
        public void Test_margin_auto_mutiple_children_column()
        {
            YogaConfig config = new YogaConfig();

            YogaNode root = new YogaNode(config);
            root.AlignItems = YogaAlign.Center;
            root.Width = 200;
            root.Height = 200;

            YogaNode root_child0 = new YogaNode(config);
            root_child0.MarginTop = YogaValue.Auto();
            root_child0.Width = 50;
            root_child0.Height = 50;
            root.Insert(0, root_child0);

            YogaNode root_child1 = new YogaNode(config);
            root_child1.MarginTop = YogaValue.Auto();
            root_child1.Width = 50;
            root_child1.Height = 50;
            root.Insert(1, root_child1);

            YogaNode root_child2 = new YogaNode(config);
            root_child2.Width = 50;
            root_child2.Height = 50;
            root.Insert(2, root_child2);
            root.StyleDirection = YogaDirection.LTR;
            root.CalculateLayout();

            Assert.AreEqual(0f, root.LayoutX);
            Assert.AreEqual(0f, root.LayoutY);
            Assert.AreEqual(200f, root.LayoutWidth);
            Assert.AreEqual(200f, root.LayoutHeight);

            Assert.AreEqual(75f, root_child0.LayoutX);
            Assert.AreEqual(25f, root_child0.LayoutY);
            Assert.AreEqual(50f, root_child0.LayoutWidth);
            Assert.AreEqual(50f, root_child0.LayoutHeight);

            Assert.AreEqual(75f, root_child1.LayoutX);
            Assert.AreEqual(100f, root_child1.LayoutY);
            Assert.AreEqual(50f, root_child1.LayoutWidth);
            Assert.AreEqual(50f, root_child1.LayoutHeight);

            Assert.AreEqual(75f, root_child2.LayoutX);
            Assert.AreEqual(150f, root_child2.LayoutY);
            Assert.AreEqual(50f, root_child2.LayoutWidth);
            Assert.AreEqual(50f, root_child2.LayoutHeight);

            root.StyleDirection = YogaDirection.RTL;
            root.CalculateLayout();

            Assert.AreEqual(0f, root.LayoutX);
            Assert.AreEqual(0f, root.LayoutY);
            Assert.AreEqual(200f, root.LayoutWidth);
            Assert.AreEqual(200f, root.LayoutHeight);

            Assert.AreEqual(75f, root_child0.LayoutX);
            Assert.AreEqual(25f, root_child0.LayoutY);
            Assert.AreEqual(50f, root_child0.LayoutWidth);
            Assert.AreEqual(50f, root_child0.LayoutHeight);

            Assert.AreEqual(75f, root_child1.LayoutX);
            Assert.AreEqual(100f, root_child1.LayoutY);
            Assert.AreEqual(50f, root_child1.LayoutWidth);
            Assert.AreEqual(50f, root_child1.LayoutHeight);

            Assert.AreEqual(75f, root_child2.LayoutX);
            Assert.AreEqual(150f, root_child2.LayoutY);
            Assert.AreEqual(50f, root_child2.LayoutWidth);
            Assert.AreEqual(50f, root_child2.LayoutHeight);
        }

        [Test]
        public void Test_margin_auto_mutiple_children_row()
        {
            YogaConfig config = new YogaConfig();

            YogaNode root = new YogaNode(config);
            root.FlexDirection = YogaFlexDirection.Row;
            root.AlignItems = YogaAlign.Center;
            root.Width = 200;
            root.Height = 200;

            YogaNode root_child0 = new YogaNode(config);
            root_child0.MarginRight = YogaValue.Auto();
            root_child0.Width = 50;
            root_child0.Height = 50;
            root.Insert(0, root_child0);

            YogaNode root_child1 = new YogaNode(config);
            root_child1.MarginRight = YogaValue.Auto();
            root_child1.Width = 50;
            root_child1.Height = 50;
            root.Insert(1, root_child1);

            YogaNode root_child2 = new YogaNode(config);
            root_child2.Width = 50;
            root_child2.Height = 50;
            root.Insert(2, root_child2);
            root.StyleDirection = YogaDirection.LTR;
            root.CalculateLayout();

            Assert.AreEqual(0f, root.LayoutX);
            Assert.AreEqual(0f, root.LayoutY);
            Assert.AreEqual(200f, root.LayoutWidth);
            Assert.AreEqual(200f, root.LayoutHeight);

            Assert.AreEqual(0f, root_child0.LayoutX);
            Assert.AreEqual(75f, root_child0.LayoutY);
            Assert.AreEqual(50f, root_child0.LayoutWidth);
            Assert.AreEqual(50f, root_child0.LayoutHeight);

            Assert.AreEqual(75f, root_child1.LayoutX);
            Assert.AreEqual(75f, root_child1.LayoutY);
            Assert.AreEqual(50f, root_child1.LayoutWidth);
            Assert.AreEqual(50f, root_child1.LayoutHeight);

            Assert.AreEqual(150f, root_child2.LayoutX);
            Assert.AreEqual(75f, root_child2.LayoutY);
            Assert.AreEqual(50f, root_child2.LayoutWidth);
            Assert.AreEqual(50f, root_child2.LayoutHeight);

            root.StyleDirection = YogaDirection.RTL;
            root.CalculateLayout();

            Assert.AreEqual(0f, root.LayoutX);
            Assert.AreEqual(0f, root.LayoutY);
            Assert.AreEqual(200f, root.LayoutWidth);
            Assert.AreEqual(200f, root.LayoutHeight);

            Assert.AreEqual(125f, root_child0.LayoutX);
            Assert.AreEqual(75f, root_child0.LayoutY);
            Assert.AreEqual(50f, root_child0.LayoutWidth);
            Assert.AreEqual(50f, root_child0.LayoutHeight);

            Assert.AreEqual(50f, root_child1.LayoutX);
            Assert.AreEqual(75f, root_child1.LayoutY);
            Assert.AreEqual(50f, root_child1.LayoutWidth);
            Assert.AreEqual(50f, root_child1.LayoutHeight);

            Assert.AreEqual(0f, root_child2.LayoutX);
            Assert.AreEqual(75f, root_child2.LayoutY);
            Assert.AreEqual(50f, root_child2.LayoutWidth);
            Assert.AreEqual(50f, root_child2.LayoutHeight);
        }

        [Test]
        public void Test_margin_auto_left_and_right_column()
        {
            YogaConfig config = new YogaConfig();

            YogaNode root = new YogaNode(config);
            root.FlexDirection = YogaFlexDirection.Row;
            root.AlignItems = YogaAlign.Center;
            root.Width = 200;
            root.Height = 200;

            YogaNode root_child0 = new YogaNode(config);
            root_child0.MarginLeft = YogaValue.Auto();
            root_child0.MarginRight = YogaValue.Auto();
            root_child0.Width = 50;
            root_child0.Height = 50;
            root.Insert(0, root_child0);

            YogaNode root_child1 = new YogaNode(config);
            root_child1.Width = 50;
            root_child1.Height = 50;
            root.Insert(1, root_child1);
            root.StyleDirection = YogaDirection.LTR;
            root.CalculateLayout();

            Assert.AreEqual(0f, root.LayoutX);
            Assert.AreEqual(0f, root.LayoutY);
            Assert.AreEqual(200f, root.LayoutWidth);
            Assert.AreEqual(200f, root.LayoutHeight);

            Assert.AreEqual(50f, root_child0.LayoutX);
            Assert.AreEqual(75f, root_child0.LayoutY);
            Assert.AreEqual(50f, root_child0.LayoutWidth);
            Assert.AreEqual(50f, root_child0.LayoutHeight);

            Assert.AreEqual(150f, root_child1.LayoutX);
            Assert.AreEqual(75f, root_child1.LayoutY);
            Assert.AreEqual(50f, root_child1.LayoutWidth);
            Assert.AreEqual(50f, root_child1.LayoutHeight);

            root.StyleDirection = YogaDirection.RTL;
            root.CalculateLayout();

            Assert.AreEqual(0f, root.LayoutX);
            Assert.AreEqual(0f, root.LayoutY);
            Assert.AreEqual(200f, root.LayoutWidth);
            Assert.AreEqual(200f, root.LayoutHeight);

            Assert.AreEqual(100f, root_child0.LayoutX);
            Assert.AreEqual(75f, root_child0.LayoutY);
            Assert.AreEqual(50f, root_child0.LayoutWidth);
            Assert.AreEqual(50f, root_child0.LayoutHeight);

            Assert.AreEqual(0f, root_child1.LayoutX);
            Assert.AreEqual(75f, root_child1.LayoutY);
            Assert.AreEqual(50f, root_child1.LayoutWidth);
            Assert.AreEqual(50f, root_child1.LayoutHeight);
        }

        [Test]
        public void Test_margin_auto_left_and_right()
        {
            YogaConfig config = new YogaConfig();

            YogaNode root = new YogaNode(config);
            root.Width = 200;
            root.Height = 200;

            YogaNode root_child0 = new YogaNode(config);
            root_child0.MarginLeft = YogaValue.Auto();
            root_child0.MarginRight = YogaValue.Auto();
            root_child0.Width = 50;
            root_child0.Height = 50;
            root.Insert(0, root_child0);

            YogaNode root_child1 = new YogaNode(config);
            root_child1.Width = 50;
            root_child1.Height = 50;
            root.Insert(1, root_child1);
            root.StyleDirection = YogaDirection.LTR;
            root.CalculateLayout();

            Assert.AreEqual(0f, root.LayoutX);
            Assert.AreEqual(0f, root.LayoutY);
            Assert.AreEqual(200f, root.LayoutWidth);
            Assert.AreEqual(200f, root.LayoutHeight);

            Assert.AreEqual(75f, root_child0.LayoutX);
            Assert.AreEqual(0f, root_child0.LayoutY);
            Assert.AreEqual(50f, root_child0.LayoutWidth);
            Assert.AreEqual(50f, root_child0.LayoutHeight);

            Assert.AreEqual(0f, root_child1.LayoutX);
            Assert.AreEqual(50f, root_child1.LayoutY);
            Assert.AreEqual(50f, root_child1.LayoutWidth);
            Assert.AreEqual(50f, root_child1.LayoutHeight);

            root.StyleDirection = YogaDirection.RTL;
            root.CalculateLayout();

            Assert.AreEqual(0f, root.LayoutX);
            Assert.AreEqual(0f, root.LayoutY);
            Assert.AreEqual(200f, root.LayoutWidth);
            Assert.AreEqual(200f, root.LayoutHeight);

            Assert.AreEqual(75f, root_child0.LayoutX);
            Assert.AreEqual(0f, root_child0.LayoutY);
            Assert.AreEqual(50f, root_child0.LayoutWidth);
            Assert.AreEqual(50f, root_child0.LayoutHeight);

            Assert.AreEqual(150f, root_child1.LayoutX);
            Assert.AreEqual(50f, root_child1.LayoutY);
            Assert.AreEqual(50f, root_child1.LayoutWidth);
            Assert.AreEqual(50f, root_child1.LayoutHeight);
        }

        [Test]
        public void Test_margin_auto_start_and_end_column()
        {
            YogaConfig config = new YogaConfig();

            YogaNode root = new YogaNode(config);
            root.FlexDirection = YogaFlexDirection.Row;
            root.AlignItems = YogaAlign.Center;
            root.Width = 200;
            root.Height = 200;

            YogaNode root_child0 = new YogaNode(config);
            root_child0.MarginStart = YogaValue.Auto();
            root_child0.MarginEnd = YogaValue.Auto();
            root_child0.Width = 50;
            root_child0.Height = 50;
            root.Insert(0, root_child0);

            YogaNode root_child1 = new YogaNode(config);
            root_child1.Width = 50;
            root_child1.Height = 50;
            root.Insert(1, root_child1);
            root.StyleDirection = YogaDirection.LTR;
            root.CalculateLayout();

            Assert.AreEqual(0f, root.LayoutX);
            Assert.AreEqual(0f, root.LayoutY);
            Assert.AreEqual(200f, root.LayoutWidth);
            Assert.AreEqual(200f, root.LayoutHeight);

            Assert.AreEqual(50f, root_child0.LayoutX);
            Assert.AreEqual(75f, root_child0.LayoutY);
            Assert.AreEqual(50f, root_child0.LayoutWidth);
            Assert.AreEqual(50f, root_child0.LayoutHeight);

            Assert.AreEqual(150f, root_child1.LayoutX);
            Assert.AreEqual(75f, root_child1.LayoutY);
            Assert.AreEqual(50f, root_child1.LayoutWidth);
            Assert.AreEqual(50f, root_child1.LayoutHeight);

            root.StyleDirection = YogaDirection.RTL;
            root.CalculateLayout();

            Assert.AreEqual(0f, root.LayoutX);
            Assert.AreEqual(0f, root.LayoutY);
            Assert.AreEqual(200f, root.LayoutWidth);
            Assert.AreEqual(200f, root.LayoutHeight);

            Assert.AreEqual(100f, root_child0.LayoutX);
            Assert.AreEqual(75f, root_child0.LayoutY);
            Assert.AreEqual(50f, root_child0.LayoutWidth);
            Assert.AreEqual(50f, root_child0.LayoutHeight);

            Assert.AreEqual(0f, root_child1.LayoutX);
            Assert.AreEqual(75f, root_child1.LayoutY);
            Assert.AreEqual(50f, root_child1.LayoutWidth);
            Assert.AreEqual(50f, root_child1.LayoutHeight);
        }

        [Test]
        public void Test_margin_auto_start_and_end()
        {
            YogaConfig config = new YogaConfig();

            YogaNode root = new YogaNode(config);
            root.Width = 200;
            root.Height = 200;

            YogaNode root_child0 = new YogaNode(config);
            root_child0.MarginStart = YogaValue.Auto();
            root_child0.MarginEnd = YogaValue.Auto();
            root_child0.Width = 50;
            root_child0.Height = 50;
            root.Insert(0, root_child0);

            YogaNode root_child1 = new YogaNode(config);
            root_child1.Width = 50;
            root_child1.Height = 50;
            root.Insert(1, root_child1);
            root.StyleDirection = YogaDirection.LTR;
            root.CalculateLayout();

            Assert.AreEqual(0f, root.LayoutX);
            Assert.AreEqual(0f, root.LayoutY);
            Assert.AreEqual(200f, root.LayoutWidth);
            Assert.AreEqual(200f, root.LayoutHeight);

            Assert.AreEqual(75f, root_child0.LayoutX);
            Assert.AreEqual(0f, root_child0.LayoutY);
            Assert.AreEqual(50f, root_child0.LayoutWidth);
            Assert.AreEqual(50f, root_child0.LayoutHeight);

            Assert.AreEqual(0f, root_child1.LayoutX);
            Assert.AreEqual(50f, root_child1.LayoutY);
            Assert.AreEqual(50f, root_child1.LayoutWidth);
            Assert.AreEqual(50f, root_child1.LayoutHeight);

            root.StyleDirection = YogaDirection.RTL;
            root.CalculateLayout();

            Assert.AreEqual(0f, root.LayoutX);
            Assert.AreEqual(0f, root.LayoutY);
            Assert.AreEqual(200f, root.LayoutWidth);
            Assert.AreEqual(200f, root.LayoutHeight);

            Assert.AreEqual(75f, root_child0.LayoutX);
            Assert.AreEqual(0f, root_child0.LayoutY);
            Assert.AreEqual(50f, root_child0.LayoutWidth);
            Assert.AreEqual(50f, root_child0.LayoutHeight);

            Assert.AreEqual(150f, root_child1.LayoutX);
            Assert.AreEqual(50f, root_child1.LayoutY);
            Assert.AreEqual(50f, root_child1.LayoutWidth);
            Assert.AreEqual(50f, root_child1.LayoutHeight);
        }

        [Test]
        public void Test_margin_auto_left_and_right_column_and_center()
        {
            YogaConfig config = new YogaConfig();

            YogaNode root = new YogaNode(config);
            root.AlignItems = YogaAlign.Center;
            root.Width = 200;
            root.Height = 200;

            YogaNode root_child0 = new YogaNode(config);
            root_child0.MarginLeft = YogaValue.Auto();
            root_child0.MarginRight = YogaValue.Auto();
            root_child0.Width = 50;
            root_child0.Height = 50;
            root.Insert(0, root_child0);

            YogaNode root_child1 = new YogaNode(config);
            root_child1.Width = 50;
            root_child1.Height = 50;
            root.Insert(1, root_child1);
            root.StyleDirection = YogaDirection.LTR;
            root.CalculateLayout();

            Assert.AreEqual(0f, root.LayoutX);
            Assert.AreEqual(0f, root.LayoutY);
            Assert.AreEqual(200f, root.LayoutWidth);
            Assert.AreEqual(200f, root.LayoutHeight);

            Assert.AreEqual(75f, root_child0.LayoutX);
            Assert.AreEqual(0f, root_child0.LayoutY);
            Assert.AreEqual(50f, root_child0.LayoutWidth);
            Assert.AreEqual(50f, root_child0.LayoutHeight);

            Assert.AreEqual(75f, root_child1.LayoutX);
            Assert.AreEqual(50f, root_child1.LayoutY);
            Assert.AreEqual(50f, root_child1.LayoutWidth);
            Assert.AreEqual(50f, root_child1.LayoutHeight);

            root.StyleDirection = YogaDirection.RTL;
            root.CalculateLayout();

            Assert.AreEqual(0f, root.LayoutX);
            Assert.AreEqual(0f, root.LayoutY);
            Assert.AreEqual(200f, root.LayoutWidth);
            Assert.AreEqual(200f, root.LayoutHeight);

            Assert.AreEqual(75f, root_child0.LayoutX);
            Assert.AreEqual(0f, root_child0.LayoutY);
            Assert.AreEqual(50f, root_child0.LayoutWidth);
            Assert.AreEqual(50f, root_child0.LayoutHeight);

            Assert.AreEqual(75f, root_child1.LayoutX);
            Assert.AreEqual(50f, root_child1.LayoutY);
            Assert.AreEqual(50f, root_child1.LayoutWidth);
            Assert.AreEqual(50f, root_child1.LayoutHeight);
        }

        [Test]
        public void Test_margin_auto_left()
        {
            YogaConfig config = new YogaConfig();

            YogaNode root = new YogaNode(config);
            root.AlignItems = YogaAlign.Center;
            root.Width = 200;
            root.Height = 200;

            YogaNode root_child0 = new YogaNode(config);
            root_child0.MarginLeft = YogaValue.Auto();
            root_child0.Width = 50;
            root_child0.Height = 50;
            root.Insert(0, root_child0);

            YogaNode root_child1 = new YogaNode(config);
            root_child1.Width = 50;
            root_child1.Height = 50;
            root.Insert(1, root_child1);
            root.StyleDirection = YogaDirection.LTR;
            root.CalculateLayout();

            Assert.AreEqual(0f, root.LayoutX);
            Assert.AreEqual(0f, root.LayoutY);
            Assert.AreEqual(200f, root.LayoutWidth);
            Assert.AreEqual(200f, root.LayoutHeight);

            Assert.AreEqual(150f, root_child0.LayoutX);
            Assert.AreEqual(0f, root_child0.LayoutY);
            Assert.AreEqual(50f, root_child0.LayoutWidth);
            Assert.AreEqual(50f, root_child0.LayoutHeight);

            Assert.AreEqual(75f, root_child1.LayoutX);
            Assert.AreEqual(50f, root_child1.LayoutY);
            Assert.AreEqual(50f, root_child1.LayoutWidth);
            Assert.AreEqual(50f, root_child1.LayoutHeight);

            root.StyleDirection = YogaDirection.RTL;
            root.CalculateLayout();

            Assert.AreEqual(0f, root.LayoutX);
            Assert.AreEqual(0f, root.LayoutY);
            Assert.AreEqual(200f, root.LayoutWidth);
            Assert.AreEqual(200f, root.LayoutHeight);

            Assert.AreEqual(150f, root_child0.LayoutX);
            Assert.AreEqual(0f, root_child0.LayoutY);
            Assert.AreEqual(50f, root_child0.LayoutWidth);
            Assert.AreEqual(50f, root_child0.LayoutHeight);

            Assert.AreEqual(75f, root_child1.LayoutX);
            Assert.AreEqual(50f, root_child1.LayoutY);
            Assert.AreEqual(50f, root_child1.LayoutWidth);
            Assert.AreEqual(50f, root_child1.LayoutHeight);
        }

        [Test]
        public void Test_margin_auto_right()
        {
            YogaConfig config = new YogaConfig();

            YogaNode root = new YogaNode(config);
            root.AlignItems = YogaAlign.Center;
            root.Width = 200;
            root.Height = 200;

            YogaNode root_child0 = new YogaNode(config);
            root_child0.MarginRight = YogaValue.Auto();
            root_child0.Width = 50;
            root_child0.Height = 50;
            root.Insert(0, root_child0);

            YogaNode root_child1 = new YogaNode(config);
            root_child1.Width = 50;
            root_child1.Height = 50;
            root.Insert(1, root_child1);
            root.StyleDirection = YogaDirection.LTR;
            root.CalculateLayout();

            Assert.AreEqual(0f, root.LayoutX);
            Assert.AreEqual(0f, root.LayoutY);
            Assert.AreEqual(200f, root.LayoutWidth);
            Assert.AreEqual(200f, root.LayoutHeight);

            Assert.AreEqual(0f, root_child0.LayoutX);
            Assert.AreEqual(0f, root_child0.LayoutY);
            Assert.AreEqual(50f, root_child0.LayoutWidth);
            Assert.AreEqual(50f, root_child0.LayoutHeight);

            Assert.AreEqual(75f, root_child1.LayoutX);
            Assert.AreEqual(50f, root_child1.LayoutY);
            Assert.AreEqual(50f, root_child1.LayoutWidth);
            Assert.AreEqual(50f, root_child1.LayoutHeight);

            root.StyleDirection = YogaDirection.RTL;
            root.CalculateLayout();

            Assert.AreEqual(0f, root.LayoutX);
            Assert.AreEqual(0f, root.LayoutY);
            Assert.AreEqual(200f, root.LayoutWidth);
            Assert.AreEqual(200f, root.LayoutHeight);

            Assert.AreEqual(0f, root_child0.LayoutX);
            Assert.AreEqual(0f, root_child0.LayoutY);
            Assert.AreEqual(50f, root_child0.LayoutWidth);
            Assert.AreEqual(50f, root_child0.LayoutHeight);

            Assert.AreEqual(75f, root_child1.LayoutX);
            Assert.AreEqual(50f, root_child1.LayoutY);
            Assert.AreEqual(50f, root_child1.LayoutWidth);
            Assert.AreEqual(50f, root_child1.LayoutHeight);
        }

        [Test]
        public void Test_margin_auto_left_and_right_strech()
        {
            YogaConfig config = new YogaConfig();

            YogaNode root = new YogaNode(config);
            root.FlexDirection = YogaFlexDirection.Row;
            root.Width = 200;
            root.Height = 200;

            YogaNode root_child0 = new YogaNode(config);
            root_child0.MarginLeft = YogaValue.Auto();
            root_child0.MarginRight = YogaValue.Auto();
            root_child0.Width = 50;
            root_child0.Height = 50;
            root.Insert(0, root_child0);

            YogaNode root_child1 = new YogaNode(config);
            root_child1.Width = 50;
            root_child1.Height = 50;
            root.Insert(1, root_child1);
            root.StyleDirection = YogaDirection.LTR;
            root.CalculateLayout();

            Assert.AreEqual(0f, root.LayoutX);
            Assert.AreEqual(0f, root.LayoutY);
            Assert.AreEqual(200f, root.LayoutWidth);
            Assert.AreEqual(200f, root.LayoutHeight);

            Assert.AreEqual(50f, root_child0.LayoutX);
            Assert.AreEqual(0f, root_child0.LayoutY);
            Assert.AreEqual(50f, root_child0.LayoutWidth);
            Assert.AreEqual(50f, root_child0.LayoutHeight);

            Assert.AreEqual(150f, root_child1.LayoutX);
            Assert.AreEqual(0f, root_child1.LayoutY);
            Assert.AreEqual(50f, root_child1.LayoutWidth);
            Assert.AreEqual(50f, root_child1.LayoutHeight);

            root.StyleDirection = YogaDirection.RTL;
            root.CalculateLayout();

            Assert.AreEqual(0f, root.LayoutX);
            Assert.AreEqual(0f, root.LayoutY);
            Assert.AreEqual(200f, root.LayoutWidth);
            Assert.AreEqual(200f, root.LayoutHeight);

            Assert.AreEqual(100f, root_child0.LayoutX);
            Assert.AreEqual(0f, root_child0.LayoutY);
            Assert.AreEqual(50f, root_child0.LayoutWidth);
            Assert.AreEqual(50f, root_child0.LayoutHeight);

            Assert.AreEqual(0f, root_child1.LayoutX);
            Assert.AreEqual(0f, root_child1.LayoutY);
            Assert.AreEqual(50f, root_child1.LayoutWidth);
            Assert.AreEqual(50f, root_child1.LayoutHeight);
        }

        [Test]
        public void Test_margin_auto_top_and_bottom_strech()
        {
            YogaConfig config = new YogaConfig();

            YogaNode root = new YogaNode(config);
            root.Width = 200;
            root.Height = 200;

            YogaNode root_child0 = new YogaNode(config);
            root_child0.MarginTop = YogaValue.Auto();
            root_child0.MarginBottom = YogaValue.Auto();
            root_child0.Width = 50;
            root_child0.Height = 50;
            root.Insert(0, root_child0);

            YogaNode root_child1 = new YogaNode(config);
            root_child1.Width = 50;
            root_child1.Height = 50;
            root.Insert(1, root_child1);
            root.StyleDirection = YogaDirection.LTR;
            root.CalculateLayout();

            Assert.AreEqual(0f, root.LayoutX);
            Assert.AreEqual(0f, root.LayoutY);
            Assert.AreEqual(200f, root.LayoutWidth);
            Assert.AreEqual(200f, root.LayoutHeight);

            Assert.AreEqual(0f, root_child0.LayoutX);
            Assert.AreEqual(50f, root_child0.LayoutY);
            Assert.AreEqual(50f, root_child0.LayoutWidth);
            Assert.AreEqual(50f, root_child0.LayoutHeight);

            Assert.AreEqual(0f, root_child1.LayoutX);
            Assert.AreEqual(150f, root_child1.LayoutY);
            Assert.AreEqual(50f, root_child1.LayoutWidth);
            Assert.AreEqual(50f, root_child1.LayoutHeight);

            root.StyleDirection = YogaDirection.RTL;
            root.CalculateLayout();

            Assert.AreEqual(0f, root.LayoutX);
            Assert.AreEqual(0f, root.LayoutY);
            Assert.AreEqual(200f, root.LayoutWidth);
            Assert.AreEqual(200f, root.LayoutHeight);

            Assert.AreEqual(150f, root_child0.LayoutX);
            Assert.AreEqual(50f, root_child0.LayoutY);
            Assert.AreEqual(50f, root_child0.LayoutWidth);
            Assert.AreEqual(50f, root_child0.LayoutHeight);

            Assert.AreEqual(150f, root_child1.LayoutX);
            Assert.AreEqual(150f, root_child1.LayoutY);
            Assert.AreEqual(50f, root_child1.LayoutWidth);
            Assert.AreEqual(50f, root_child1.LayoutHeight);
        }

        [Test]
        public void Test_margin_should_not_be_part_of_max_height()
        {
            YogaConfig config = new YogaConfig();

            YogaNode root = new YogaNode(config);
            root.Width = 250;
            root.Height = 250;

            YogaNode root_child0 = new YogaNode(config);
            root_child0.MarginTop = 20;
            root_child0.Width = 100;
            root_child0.Height = 100;
            root_child0.MaxHeight = 100;
            root.Insert(0, root_child0);
            root.StyleDirection = YogaDirection.LTR;
            root.CalculateLayout();

            Assert.AreEqual(0f, root.LayoutX);
            Assert.AreEqual(0f, root.LayoutY);
            Assert.AreEqual(250f, root.LayoutWidth);
            Assert.AreEqual(250f, root.LayoutHeight);

            Assert.AreEqual(0f, root_child0.LayoutX);
            Assert.AreEqual(20f, root_child0.LayoutY);
            Assert.AreEqual(100f, root_child0.LayoutWidth);
            Assert.AreEqual(100f, root_child0.LayoutHeight);

            root.StyleDirection = YogaDirection.RTL;
            root.CalculateLayout();

            Assert.AreEqual(0f, root.LayoutX);
            Assert.AreEqual(0f, root.LayoutY);
            Assert.AreEqual(250f, root.LayoutWidth);
            Assert.AreEqual(250f, root.LayoutHeight);

            Assert.AreEqual(150f, root_child0.LayoutX);
            Assert.AreEqual(20f, root_child0.LayoutY);
            Assert.AreEqual(100f, root_child0.LayoutWidth);
            Assert.AreEqual(100f, root_child0.LayoutHeight);
        }

        [Test]
        public void Test_margin_should_not_be_part_of_max_width()
        {
            YogaConfig config = new YogaConfig();

            YogaNode root = new YogaNode(config);
            root.Width = 250;
            root.Height = 250;

            YogaNode root_child0 = new YogaNode(config);
            root_child0.MarginLeft = 20;
            root_child0.Width = 100;
            root_child0.MaxWidth = 100;
            root_child0.Height = 100;
            root.Insert(0, root_child0);
            root.StyleDirection = YogaDirection.LTR;
            root.CalculateLayout();

            Assert.AreEqual(0f, root.LayoutX);
            Assert.AreEqual(0f, root.LayoutY);
            Assert.AreEqual(250f, root.LayoutWidth);
            Assert.AreEqual(250f, root.LayoutHeight);

            Assert.AreEqual(20f, root_child0.LayoutX);
            Assert.AreEqual(0f, root_child0.LayoutY);
            Assert.AreEqual(100f, root_child0.LayoutWidth);
            Assert.AreEqual(100f, root_child0.LayoutHeight);

            root.StyleDirection = YogaDirection.RTL;
            root.CalculateLayout();

            Assert.AreEqual(0f, root.LayoutX);
            Assert.AreEqual(0f, root.LayoutY);
            Assert.AreEqual(250f, root.LayoutWidth);
            Assert.AreEqual(250f, root.LayoutHeight);

            Assert.AreEqual(150f, root_child0.LayoutX);
            Assert.AreEqual(0f, root_child0.LayoutY);
            Assert.AreEqual(100f, root_child0.LayoutWidth);
            Assert.AreEqual(100f, root_child0.LayoutHeight);
        }

    }
}