Add experiment support to gentest

Summary: This diff does two things - Clean up some of the generated code making the files smaller. - Add experiment support to generated tests allowing us to use gentest for things still being experimented with such as more compliant flex-basis behavior. Reviewed By: gkassabli Differential Revision: D4226734 fbshipit-source-id: 2cc1471c21883e8e326f16e7a8bb1a3657acd84b
2016-11-23 11:12:51 -08:00
parent a0d560a24b
commit 22b0fdb3e6
49 changed files with 6574 additions and 6119 deletions
--- a/csharp/tests/Facebook.CSSLayout/CSSLayoutRoundingTest.cs
+++ b/csharp/tests/Facebook.CSSLayout/CSSLayoutRoundingTest.cs
@@ -0,0 +1,807 @@
+/**
+ * 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/CSSLayoutRoundingTest.html
+
+using System;
+using NUnit.Framework;
+
+namespace Facebook.CSSLayout
+{
+    [TestFixture]
+    public class CSSLayoutRoundingTest
+    {
+        [Test]
+        public void Test_rounding_flex_basis_flex_grow_row_width_of_100()
+        {
+            CSSNode.SetExperimentalFeatureEnabled(CSSExperimentalFeature.Rounding, true);
+
+            CSSNode root = new CSSNode();
+            root.FlexDirection = CSSFlexDirection.Row;
+            root.StyleWidth = 100f;
+            root.StyleHeight = 100f;
+
+            CSSNode root_child0 = new CSSNode();
+            root_child0.FlexGrow = 1f;
+            root.Insert(0, root_child0);
+
+            CSSNode root_child1 = new CSSNode();
+            root_child1.FlexGrow = 1f;
+            root.Insert(1, root_child1);
+
+            CSSNode root_child2 = new CSSNode();
+            root_child2.FlexGrow = 1f;
+            root.Insert(2, root_child2);
+            root.StyleDirection = CSSDirection.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(33f, root_child0.LayoutWidth);
+            Assert.AreEqual(100f, root_child0.LayoutHeight);
+
+            Assert.AreEqual(33f, root_child1.LayoutX);
+            Assert.AreEqual(0f, root_child1.LayoutY);
+            Assert.AreEqual(34f, root_child1.LayoutWidth);
+            Assert.AreEqual(100f, root_child1.LayoutHeight);
+
+            Assert.AreEqual(67f, root_child2.LayoutX);
+            Assert.AreEqual(0f, root_child2.LayoutY);
+            Assert.AreEqual(33f, root_child2.LayoutWidth);
+            Assert.AreEqual(100f, root_child2.LayoutHeight);
+
+            root.StyleDirection = CSSDirection.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(67f, root_child0.LayoutX);
+            Assert.AreEqual(0f, root_child0.LayoutY);
+            Assert.AreEqual(33f, root_child0.LayoutWidth);
+            Assert.AreEqual(100f, root_child0.LayoutHeight);
+
+            Assert.AreEqual(33f, root_child1.LayoutX);
+            Assert.AreEqual(0f, root_child1.LayoutY);
+            Assert.AreEqual(34f, root_child1.LayoutWidth);
+            Assert.AreEqual(100f, root_child1.LayoutHeight);
+
+            Assert.AreEqual(0f, root_child2.LayoutX);
+            Assert.AreEqual(0f, root_child2.LayoutY);
+            Assert.AreEqual(33f, root_child2.LayoutWidth);
+            Assert.AreEqual(100f, root_child2.LayoutHeight);
+
+            CSSNode.SetExperimentalFeatureEnabled(CSSExperimentalFeature.Rounding, false);
+        }
+
+        [Test]
+        public void Test_rounding_flex_basis_flex_grow_row_prime_number_width()
+        {
+            CSSNode.SetExperimentalFeatureEnabled(CSSExperimentalFeature.Rounding, true);
+
+            CSSNode root = new CSSNode();
+            root.FlexDirection = CSSFlexDirection.Row;
+            root.StyleWidth = 113f;
+            root.StyleHeight = 100f;
+
+            CSSNode root_child0 = new CSSNode();
+            root_child0.FlexGrow = 1f;
+            root.Insert(0, root_child0);
+
+            CSSNode root_child1 = new CSSNode();
+            root_child1.FlexGrow = 1f;
+            root.Insert(1, root_child1);
+
+            CSSNode root_child2 = new CSSNode();
+            root_child2.FlexGrow = 1f;
+            root.Insert(2, root_child2);
+
+            CSSNode root_child3 = new CSSNode();
+            root_child3.FlexGrow = 1f;
+            root.Insert(3, root_child3);
+
+            CSSNode root_child4 = new CSSNode();
+            root_child4.FlexGrow = 1f;
+            root.Insert(4, root_child4);
+            root.StyleDirection = CSSDirection.LTR;
+            root.CalculateLayout();
+
+            Assert.AreEqual(0f, root.LayoutX);
+            Assert.AreEqual(0f, root.LayoutY);
+            Assert.AreEqual(113f, root.LayoutWidth);
+            Assert.AreEqual(100f, root.LayoutHeight);
+
+            Assert.AreEqual(0f, root_child0.LayoutX);
+            Assert.AreEqual(0f, root_child0.LayoutY);
+            Assert.AreEqual(23f, root_child0.LayoutWidth);
+            Assert.AreEqual(100f, root_child0.LayoutHeight);
+
+            Assert.AreEqual(23f, root_child1.LayoutX);
+            Assert.AreEqual(0f, root_child1.LayoutY);
+            Assert.AreEqual(22f, root_child1.LayoutWidth);
+            Assert.AreEqual(100f, root_child1.LayoutHeight);
+
+            Assert.AreEqual(45f, root_child2.LayoutX);
+            Assert.AreEqual(0f, root_child2.LayoutY);
+            Assert.AreEqual(23f, root_child2.LayoutWidth);
+            Assert.AreEqual(100f, root_child2.LayoutHeight);
+
+            Assert.AreEqual(68f, root_child3.LayoutX);
+            Assert.AreEqual(0f, root_child3.LayoutY);
+            Assert.AreEqual(22f, root_child3.LayoutWidth);
+            Assert.AreEqual(100f, root_child3.LayoutHeight);
+
+            Assert.AreEqual(90f, root_child4.LayoutX);
+            Assert.AreEqual(0f, root_child4.LayoutY);
+            Assert.AreEqual(23f, root_child4.LayoutWidth);
+            Assert.AreEqual(100f, root_child4.LayoutHeight);
+
+            root.StyleDirection = CSSDirection.RTL;
+            root.CalculateLayout();
+
+            Assert.AreEqual(0f, root.LayoutX);
+            Assert.AreEqual(0f, root.LayoutY);
+            Assert.AreEqual(113f, root.LayoutWidth);
+            Assert.AreEqual(100f, root.LayoutHeight);
+
+            Assert.AreEqual(90f, root_child0.LayoutX);
+            Assert.AreEqual(0f, root_child0.LayoutY);
+            Assert.AreEqual(23f, root_child0.LayoutWidth);
+            Assert.AreEqual(100f, root_child0.LayoutHeight);
+
+            Assert.AreEqual(68f, root_child1.LayoutX);
+            Assert.AreEqual(0f, root_child1.LayoutY);
+            Assert.AreEqual(22f, root_child1.LayoutWidth);
+            Assert.AreEqual(100f, root_child1.LayoutHeight);
+
+            Assert.AreEqual(45f, root_child2.LayoutX);
+            Assert.AreEqual(0f, root_child2.LayoutY);
+            Assert.AreEqual(23f, root_child2.LayoutWidth);
+            Assert.AreEqual(100f, root_child2.LayoutHeight);
+
+            Assert.AreEqual(23f, root_child3.LayoutX);
+            Assert.AreEqual(0f, root_child3.LayoutY);
+            Assert.AreEqual(22f, root_child3.LayoutWidth);
+            Assert.AreEqual(100f, root_child3.LayoutHeight);
+
+            Assert.AreEqual(0f, root_child4.LayoutX);
+            Assert.AreEqual(0f, root_child4.LayoutY);
+            Assert.AreEqual(23f, root_child4.LayoutWidth);
+            Assert.AreEqual(100f, root_child4.LayoutHeight);
+
+            CSSNode.SetExperimentalFeatureEnabled(CSSExperimentalFeature.Rounding, false);
+        }
+
+        [Test]
+        public void Test_rounding_flex_basis_flex_shrink_row()
+        {
+            CSSNode.SetExperimentalFeatureEnabled(CSSExperimentalFeature.Rounding, true);
+
+            CSSNode root = new CSSNode();
+            root.FlexDirection = CSSFlexDirection.Row;
+            root.StyleWidth = 101f;
+            root.StyleHeight = 100f;
+
+            CSSNode root_child0 = new CSSNode();
+            root_child0.FlexShrink = 1f;
+            root_child0.FlexBasis = 100f;
+            root.Insert(0, root_child0);
+
+            CSSNode root_child1 = new CSSNode();
+            root_child1.FlexBasis = 25f;
+            root.Insert(1, root_child1);
+
+            CSSNode root_child2 = new CSSNode();
+            root_child2.FlexBasis = 25f;
+            root.Insert(2, root_child2);
+            root.StyleDirection = CSSDirection.LTR;
+            root.CalculateLayout();
+
+            Assert.AreEqual(0f, root.LayoutX);
+            Assert.AreEqual(0f, root.LayoutY);
+            Assert.AreEqual(101f, root.LayoutWidth);
+            Assert.AreEqual(100f, root.LayoutHeight);
+
+            Assert.AreEqual(0f, root_child0.LayoutX);
+            Assert.AreEqual(0f, root_child0.LayoutY);
+            Assert.AreEqual(51f, root_child0.LayoutWidth);
+            Assert.AreEqual(100f, root_child0.LayoutHeight);
+
+            Assert.AreEqual(51f, root_child1.LayoutX);
+            Assert.AreEqual(0f, root_child1.LayoutY);
+            Assert.AreEqual(25f, root_child1.LayoutWidth);
+            Assert.AreEqual(100f, root_child1.LayoutHeight);
+
+            Assert.AreEqual(76f, root_child2.LayoutX);
+            Assert.AreEqual(0f, root_child2.LayoutY);
+            Assert.AreEqual(25f, root_child2.LayoutWidth);
+            Assert.AreEqual(100f, root_child2.LayoutHeight);
+
+            root.StyleDirection = CSSDirection.RTL;
+            root.CalculateLayout();
+
+            Assert.AreEqual(0f, root.LayoutX);
+            Assert.AreEqual(0f, root.LayoutY);
+            Assert.AreEqual(101f, root.LayoutWidth);
+            Assert.AreEqual(100f, root.LayoutHeight);
+
+            Assert.AreEqual(50f, root_child0.LayoutX);
+            Assert.AreEqual(0f, root_child0.LayoutY);
+            Assert.AreEqual(51f, root_child0.LayoutWidth);
+            Assert.AreEqual(100f, root_child0.LayoutHeight);
+
+            Assert.AreEqual(25f, root_child1.LayoutX);
+            Assert.AreEqual(0f, root_child1.LayoutY);
+            Assert.AreEqual(25f, root_child1.LayoutWidth);
+            Assert.AreEqual(100f, root_child1.LayoutHeight);
+
+            Assert.AreEqual(0f, root_child2.LayoutX);
+            Assert.AreEqual(0f, root_child2.LayoutY);
+            Assert.AreEqual(25f, root_child2.LayoutWidth);
+            Assert.AreEqual(100f, root_child2.LayoutHeight);
+
+            CSSNode.SetExperimentalFeatureEnabled(CSSExperimentalFeature.Rounding, false);
+        }
+
+        [Test]
+        public void Test_rounding_flex_basis_overrides_main_size()
+        {
+            CSSNode.SetExperimentalFeatureEnabled(CSSExperimentalFeature.Rounding, true);
+
+            CSSNode root = new CSSNode();
+            root.StyleWidth = 100f;
+            root.StyleHeight = 113f;
+
+            CSSNode root_child0 = new CSSNode();
+            root_child0.FlexGrow = 1f;
+            root_child0.FlexBasis = 50f;
+            root_child0.StyleHeight = 20f;
+            root.Insert(0, root_child0);
+
+            CSSNode root_child1 = new CSSNode();
+            root_child1.FlexGrow = 1f;
+            root_child1.StyleHeight = 10f;
+            root.Insert(1, root_child1);
+
+            CSSNode root_child2 = new CSSNode();
+            root_child2.FlexGrow = 1f;
+            root_child2.StyleHeight = 10f;
+            root.Insert(2, root_child2);
+            root.StyleDirection = CSSDirection.LTR;
+            root.CalculateLayout();
+
+            Assert.AreEqual(0f, root.LayoutX);
+            Assert.AreEqual(0f, root.LayoutY);
+            Assert.AreEqual(100f, root.LayoutWidth);
+            Assert.AreEqual(113f, root.LayoutHeight);
+
+            Assert.AreEqual(0f, root_child0.LayoutX);
+            Assert.AreEqual(0f, root_child0.LayoutY);
+            Assert.AreEqual(100f, root_child0.LayoutWidth);
+            Assert.AreEqual(64f, root_child0.LayoutHeight);
+
+            Assert.AreEqual(0f, root_child1.LayoutX);
+            Assert.AreEqual(64f, root_child1.LayoutY);
+            Assert.AreEqual(100f, root_child1.LayoutWidth);
+            Assert.AreEqual(25f, root_child1.LayoutHeight);
+
+            Assert.AreEqual(0f, root_child2.LayoutX);
+            Assert.AreEqual(89f, root_child2.LayoutY);
+            Assert.AreEqual(100f, root_child2.LayoutWidth);
+            Assert.AreEqual(24f, root_child2.LayoutHeight);
+
+            root.StyleDirection = CSSDirection.RTL;
+            root.CalculateLayout();
+
+            Assert.AreEqual(0f, root.LayoutX);
+            Assert.AreEqual(0f, root.LayoutY);
+            Assert.AreEqual(100f, root.LayoutWidth);
+            Assert.AreEqual(113f, root.LayoutHeight);
+
+            Assert.AreEqual(0f, root_child0.LayoutX);
+            Assert.AreEqual(0f, root_child0.LayoutY);
+            Assert.AreEqual(100f, root_child0.LayoutWidth);
+            Assert.AreEqual(64f, root_child0.LayoutHeight);
+
+            Assert.AreEqual(0f, root_child1.LayoutX);
+            Assert.AreEqual(64f, root_child1.LayoutY);
+            Assert.AreEqual(100f, root_child1.LayoutWidth);
+            Assert.AreEqual(25f, root_child1.LayoutHeight);
+
+            Assert.AreEqual(0f, root_child2.LayoutX);
+            Assert.AreEqual(89f, root_child2.LayoutY);
+            Assert.AreEqual(100f, root_child2.LayoutWidth);
+            Assert.AreEqual(24f, root_child2.LayoutHeight);
+
+            CSSNode.SetExperimentalFeatureEnabled(CSSExperimentalFeature.Rounding, false);
+        }
+
+        [Test]
+        public void Test_rounding_total_fractial()
+        {
+            CSSNode.SetExperimentalFeatureEnabled(CSSExperimentalFeature.Rounding, true);
+
+            CSSNode root = new CSSNode();
+            root.StyleWidth = 87.4f;
+            root.StyleHeight = 113.4f;
+
+            CSSNode root_child0 = new CSSNode();
+            root_child0.FlexGrow = 0.7f;
+            root_child0.FlexBasis = 50.3f;
+            root_child0.StyleHeight = 20.3f;
+            root.Insert(0, root_child0);
+
+            CSSNode root_child1 = new CSSNode();
+            root_child1.FlexGrow = 1.6f;
+            root_child1.StyleHeight = 10f;
+            root.Insert(1, root_child1);
+
+            CSSNode root_child2 = new CSSNode();
+            root_child2.FlexGrow = 1.1f;
+            root_child2.StyleHeight = 10.7f;
+            root.Insert(2, root_child2);
+            root.StyleDirection = CSSDirection.LTR;
+            root.CalculateLayout();
+
+            Assert.AreEqual(0f, root.LayoutX);
+            Assert.AreEqual(0f, root.LayoutY);
+            Assert.AreEqual(87f, root.LayoutWidth);
+            Assert.AreEqual(113f, root.LayoutHeight);
+
+            Assert.AreEqual(0f, root_child0.LayoutX);
+            Assert.AreEqual(0f, root_child0.LayoutY);
+            Assert.AreEqual(87f, root_child0.LayoutWidth);
+            Assert.AreEqual(59f, root_child0.LayoutHeight);
+
+            Assert.AreEqual(0f, root_child1.LayoutX);
+            Assert.AreEqual(59f, root_child1.LayoutY);
+            Assert.AreEqual(87f, root_child1.LayoutWidth);
+            Assert.AreEqual(30f, root_child1.LayoutHeight);
+
+            Assert.AreEqual(0f, root_child2.LayoutX);
+            Assert.AreEqual(89f, root_child2.LayoutY);
+            Assert.AreEqual(87f, root_child2.LayoutWidth);
+            Assert.AreEqual(24f, root_child2.LayoutHeight);
+
+            root.StyleDirection = CSSDirection.RTL;
+            root.CalculateLayout();
+
+            Assert.AreEqual(0f, root.LayoutX);
+            Assert.AreEqual(0f, root.LayoutY);
+            Assert.AreEqual(87f, root.LayoutWidth);
+            Assert.AreEqual(113f, root.LayoutHeight);
+
+            Assert.AreEqual(0f, root_child0.LayoutX);
+            Assert.AreEqual(0f, root_child0.LayoutY);
+            Assert.AreEqual(87f, root_child0.LayoutWidth);
+            Assert.AreEqual(59f, root_child0.LayoutHeight);
+
+            Assert.AreEqual(0f, root_child1.LayoutX);
+            Assert.AreEqual(59f, root_child1.LayoutY);
+            Assert.AreEqual(87f, root_child1.LayoutWidth);
+            Assert.AreEqual(30f, root_child1.LayoutHeight);
+
+            Assert.AreEqual(0f, root_child2.LayoutX);
+            Assert.AreEqual(89f, root_child2.LayoutY);
+            Assert.AreEqual(87f, root_child2.LayoutWidth);
+            Assert.AreEqual(24f, root_child2.LayoutHeight);
+
+            CSSNode.SetExperimentalFeatureEnabled(CSSExperimentalFeature.Rounding, false);
+        }
+
+        [Test]
+        public void Test_rounding_total_fractial_nested()
+        {
+            CSSNode.SetExperimentalFeatureEnabled(CSSExperimentalFeature.Rounding, true);
+
+            CSSNode root = new CSSNode();
+            root.StyleWidth = 87.4f;
+            root.StyleHeight = 113.4f;
+
+            CSSNode root_child0 = new CSSNode();
+            root_child0.FlexGrow = 0.7f;
+            root_child0.FlexBasis = 50.3f;
+            root_child0.StyleHeight = 20.3f;
+            root.Insert(0, root_child0);
+
+            CSSNode root_child0_child0 = new CSSNode();
+            root_child0_child0.FlexGrow = 1f;
+            root_child0_child0.FlexBasis = 0.3f;
+            root_child0_child0.SetPosition(CSSEdge.Bottom, 13.3f);
+            root_child0_child0.StyleHeight = 9.9f;
+            root_child0.Insert(0, root_child0_child0);
+
+            CSSNode root_child0_child1 = new CSSNode();
+            root_child0_child1.FlexGrow = 4f;
+            root_child0_child1.FlexBasis = 0.3f;
+            root_child0_child1.SetPosition(CSSEdge.Top, 13.3f);
+            root_child0_child1.StyleHeight = 1.1f;
+            root_child0.Insert(1, root_child0_child1);
+
+            CSSNode root_child1 = new CSSNode();
+            root_child1.FlexGrow = 1.6f;
+            root_child1.StyleHeight = 10f;
+            root.Insert(1, root_child1);
+
+            CSSNode root_child2 = new CSSNode();
+            root_child2.FlexGrow = 1.1f;
+            root_child2.StyleHeight = 10.7f;
+            root.Insert(2, root_child2);
+            root.StyleDirection = CSSDirection.LTR;
+            root.CalculateLayout();
+
+            Assert.AreEqual(0f, root.LayoutX);
+            Assert.AreEqual(0f, root.LayoutY);
+            Assert.AreEqual(87f, root.LayoutWidth);
+            Assert.AreEqual(113f, root.LayoutHeight);
+
+            Assert.AreEqual(0f, root_child0.LayoutX);
+            Assert.AreEqual(0f, root_child0.LayoutY);
+            Assert.AreEqual(87f, root_child0.LayoutWidth);
+            Assert.AreEqual(59f, root_child0.LayoutHeight);
+
+            Assert.AreEqual(0f, root_child0_child0.LayoutX);
+            Assert.AreEqual(-13f, root_child0_child0.LayoutY);
+            Assert.AreEqual(87f, root_child0_child0.LayoutWidth);
+            Assert.AreEqual(12f, root_child0_child0.LayoutHeight);
+
+            Assert.AreEqual(0f, root_child0_child1.LayoutX);
+            Assert.AreEqual(25f, root_child0_child1.LayoutY);
+            Assert.AreEqual(87f, root_child0_child1.LayoutWidth);
+            Assert.AreEqual(47f, root_child0_child1.LayoutHeight);
+
+            Assert.AreEqual(0f, root_child1.LayoutX);
+            Assert.AreEqual(59f, root_child1.LayoutY);
+            Assert.AreEqual(87f, root_child1.LayoutWidth);
+            Assert.AreEqual(30f, root_child1.LayoutHeight);
+
+            Assert.AreEqual(0f, root_child2.LayoutX);
+            Assert.AreEqual(89f, root_child2.LayoutY);
+            Assert.AreEqual(87f, root_child2.LayoutWidth);
+            Assert.AreEqual(24f, root_child2.LayoutHeight);
+
+            root.StyleDirection = CSSDirection.RTL;
+            root.CalculateLayout();
+
+            Assert.AreEqual(0f, root.LayoutX);
+            Assert.AreEqual(0f, root.LayoutY);
+            Assert.AreEqual(87f, root.LayoutWidth);
+            Assert.AreEqual(113f, root.LayoutHeight);
+
+            Assert.AreEqual(0f, root_child0.LayoutX);
+            Assert.AreEqual(0f, root_child0.LayoutY);
+            Assert.AreEqual(87f, root_child0.LayoutWidth);
+            Assert.AreEqual(59f, root_child0.LayoutHeight);
+
+            Assert.AreEqual(0f, root_child0_child0.LayoutX);
+            Assert.AreEqual(-13f, root_child0_child0.LayoutY);
+            Assert.AreEqual(87f, root_child0_child0.LayoutWidth);
+            Assert.AreEqual(12f, root_child0_child0.LayoutHeight);
+
+            Assert.AreEqual(0f, root_child0_child1.LayoutX);
+            Assert.AreEqual(25f, root_child0_child1.LayoutY);
+            Assert.AreEqual(87f, root_child0_child1.LayoutWidth);
+            Assert.AreEqual(47f, root_child0_child1.LayoutHeight);
+
+            Assert.AreEqual(0f, root_child1.LayoutX);
+            Assert.AreEqual(59f, root_child1.LayoutY);
+            Assert.AreEqual(87f, root_child1.LayoutWidth);
+            Assert.AreEqual(30f, root_child1.LayoutHeight);
+
+            Assert.AreEqual(0f, root_child2.LayoutX);
+            Assert.AreEqual(89f, root_child2.LayoutY);
+            Assert.AreEqual(87f, root_child2.LayoutWidth);
+            Assert.AreEqual(24f, root_child2.LayoutHeight);
+
+            CSSNode.SetExperimentalFeatureEnabled(CSSExperimentalFeature.Rounding, false);
+        }
+
+        [Test]
+        public void Test_rounding_fractial_input_1()
+        {
+            CSSNode.SetExperimentalFeatureEnabled(CSSExperimentalFeature.Rounding, true);
+
+            CSSNode root = new CSSNode();
+            root.StyleWidth = 100f;
+            root.StyleHeight = 113.4f;
+
+            CSSNode root_child0 = new CSSNode();
+            root_child0.FlexGrow = 1f;
+            root_child0.FlexBasis = 50f;
+            root_child0.StyleHeight = 20f;
+            root.Insert(0, root_child0);
+
+            CSSNode root_child1 = new CSSNode();
+            root_child1.FlexGrow = 1f;
+            root_child1.StyleHeight = 10f;
+            root.Insert(1, root_child1);
+
+            CSSNode root_child2 = new CSSNode();
+            root_child2.FlexGrow = 1f;
+            root_child2.StyleHeight = 10f;
+            root.Insert(2, root_child2);
+            root.StyleDirection = CSSDirection.LTR;
+            root.CalculateLayout();
+
+            Assert.AreEqual(0f, root.LayoutX);
+            Assert.AreEqual(0f, root.LayoutY);
+            Assert.AreEqual(100f, root.LayoutWidth);
+            Assert.AreEqual(113f, root.LayoutHeight);
+
+            Assert.AreEqual(0f, root_child0.LayoutX);
+            Assert.AreEqual(0f, root_child0.LayoutY);
+            Assert.AreEqual(100f, root_child0.LayoutWidth);
+            Assert.AreEqual(64f, root_child0.LayoutHeight);
+
+            Assert.AreEqual(0f, root_child1.LayoutX);
+            Assert.AreEqual(64f, root_child1.LayoutY);
+            Assert.AreEqual(100f, root_child1.LayoutWidth);
+            Assert.AreEqual(25f, root_child1.LayoutHeight);
+
+            Assert.AreEqual(0f, root_child2.LayoutX);
+            Assert.AreEqual(89f, root_child2.LayoutY);
+            Assert.AreEqual(100f, root_child2.LayoutWidth);
+            Assert.AreEqual(24f, root_child2.LayoutHeight);
+
+            root.StyleDirection = CSSDirection.RTL;
+            root.CalculateLayout();
+
+            Assert.AreEqual(0f, root.LayoutX);
+            Assert.AreEqual(0f, root.LayoutY);
+            Assert.AreEqual(100f, root.LayoutWidth);
+            Assert.AreEqual(113f, root.LayoutHeight);
+
+            Assert.AreEqual(0f, root_child0.LayoutX);
+            Assert.AreEqual(0f, root_child0.LayoutY);
+            Assert.AreEqual(100f, root_child0.LayoutWidth);
+            Assert.AreEqual(64f, root_child0.LayoutHeight);
+
+            Assert.AreEqual(0f, root_child1.LayoutX);
+            Assert.AreEqual(64f, root_child1.LayoutY);
+            Assert.AreEqual(100f, root_child1.LayoutWidth);
+            Assert.AreEqual(25f, root_child1.LayoutHeight);
+
+            Assert.AreEqual(0f, root_child2.LayoutX);
+            Assert.AreEqual(89f, root_child2.LayoutY);
+            Assert.AreEqual(100f, root_child2.LayoutWidth);
+            Assert.AreEqual(24f, root_child2.LayoutHeight);
+
+            CSSNode.SetExperimentalFeatureEnabled(CSSExperimentalFeature.Rounding, false);
+        }
+
+        [Test]
+        public void Test_rounding_fractial_input_2()
+        {
+            CSSNode.SetExperimentalFeatureEnabled(CSSExperimentalFeature.Rounding, true);
+
+            CSSNode root = new CSSNode();
+            root.StyleWidth = 100f;
+            root.StyleHeight = 113.6f;
+
+            CSSNode root_child0 = new CSSNode();
+            root_child0.FlexGrow = 1f;
+            root_child0.FlexBasis = 50f;
+            root_child0.StyleHeight = 20f;
+            root.Insert(0, root_child0);
+
+            CSSNode root_child1 = new CSSNode();
+            root_child1.FlexGrow = 1f;
+            root_child1.StyleHeight = 10f;
+            root.Insert(1, root_child1);
+
+            CSSNode root_child2 = new CSSNode();
+            root_child2.FlexGrow = 1f;
+            root_child2.StyleHeight = 10f;
+            root.Insert(2, root_child2);
+            root.StyleDirection = CSSDirection.LTR;
+            root.CalculateLayout();
+
+            Assert.AreEqual(0f, root.LayoutX);
+            Assert.AreEqual(0f, root.LayoutY);
+            Assert.AreEqual(100f, root.LayoutWidth);
+            Assert.AreEqual(114f, root.LayoutHeight);
+
+            Assert.AreEqual(0f, root_child0.LayoutX);
+            Assert.AreEqual(0f, root_child0.LayoutY);
+            Assert.AreEqual(100f, root_child0.LayoutWidth);
+            Assert.AreEqual(65f, root_child0.LayoutHeight);
+
+            Assert.AreEqual(0f, root_child1.LayoutX);
+            Assert.AreEqual(65f, root_child1.LayoutY);
+            Assert.AreEqual(100f, root_child1.LayoutWidth);
+            Assert.AreEqual(24f, root_child1.LayoutHeight);
+
+            Assert.AreEqual(0f, root_child2.LayoutX);
+            Assert.AreEqual(89f, root_child2.LayoutY);
+            Assert.AreEqual(100f, root_child2.LayoutWidth);
+            Assert.AreEqual(25f, root_child2.LayoutHeight);
+
+            root.StyleDirection = CSSDirection.RTL;
+            root.CalculateLayout();
+
+            Assert.AreEqual(0f, root.LayoutX);
+            Assert.AreEqual(0f, root.LayoutY);
+            Assert.AreEqual(100f, root.LayoutWidth);
+            Assert.AreEqual(114f, root.LayoutHeight);
+
+            Assert.AreEqual(0f, root_child0.LayoutX);
+            Assert.AreEqual(0f, root_child0.LayoutY);
+            Assert.AreEqual(100f, root_child0.LayoutWidth);
+            Assert.AreEqual(65f, root_child0.LayoutHeight);
+
+            Assert.AreEqual(0f, root_child1.LayoutX);
+            Assert.AreEqual(65f, root_child1.LayoutY);
+            Assert.AreEqual(100f, root_child1.LayoutWidth);
+            Assert.AreEqual(24f, root_child1.LayoutHeight);
+
+            Assert.AreEqual(0f, root_child2.LayoutX);
+            Assert.AreEqual(89f, root_child2.LayoutY);
+            Assert.AreEqual(100f, root_child2.LayoutWidth);
+            Assert.AreEqual(25f, root_child2.LayoutHeight);
+
+            CSSNode.SetExperimentalFeatureEnabled(CSSExperimentalFeature.Rounding, false);
+        }
+
+        [Test]
+        public void Test_rounding_fractial_input_3()
+        {
+            CSSNode.SetExperimentalFeatureEnabled(CSSExperimentalFeature.Rounding, true);
+
+            CSSNode root = new CSSNode();
+            root.SetPosition(CSSEdge.Top, 0.3f);
+            root.StyleWidth = 100f;
+            root.StyleHeight = 113.4f;
+
+            CSSNode root_child0 = new CSSNode();
+            root_child0.FlexGrow = 1f;
+            root_child0.FlexBasis = 50f;
+            root_child0.StyleHeight = 20f;
+            root.Insert(0, root_child0);
+
+            CSSNode root_child1 = new CSSNode();
+            root_child1.FlexGrow = 1f;
+            root_child1.StyleHeight = 10f;
+            root.Insert(1, root_child1);
+
+            CSSNode root_child2 = new CSSNode();
+            root_child2.FlexGrow = 1f;
+            root_child2.StyleHeight = 10f;
+            root.Insert(2, root_child2);
+            root.StyleDirection = CSSDirection.LTR;
+            root.CalculateLayout();
+
+            Assert.AreEqual(0f, root.LayoutX);
+            Assert.AreEqual(0f, root.LayoutY);
+            Assert.AreEqual(100f, root.LayoutWidth);
+            Assert.AreEqual(114f, root.LayoutHeight);
+
+            Assert.AreEqual(0f, root_child0.LayoutX);
+            Assert.AreEqual(0f, root_child0.LayoutY);
+            Assert.AreEqual(100f, root_child0.LayoutWidth);
+            Assert.AreEqual(64f, root_child0.LayoutHeight);
+
+            Assert.AreEqual(0f, root_child1.LayoutX);
+            Assert.AreEqual(64f, root_child1.LayoutY);
+            Assert.AreEqual(100f, root_child1.LayoutWidth);
+            Assert.AreEqual(25f, root_child1.LayoutHeight);
+
+            Assert.AreEqual(0f, root_child2.LayoutX);
+            Assert.AreEqual(89f, root_child2.LayoutY);
+            Assert.AreEqual(100f, root_child2.LayoutWidth);
+            Assert.AreEqual(24f, root_child2.LayoutHeight);
+
+            root.StyleDirection = CSSDirection.RTL;
+            root.CalculateLayout();
+
+            Assert.AreEqual(0f, root.LayoutX);
+            Assert.AreEqual(0f, root.LayoutY);
+            Assert.AreEqual(100f, root.LayoutWidth);
+            Assert.AreEqual(114f, root.LayoutHeight);
+
+            Assert.AreEqual(0f, root_child0.LayoutX);
+            Assert.AreEqual(0f, root_child0.LayoutY);
+            Assert.AreEqual(100f, root_child0.LayoutWidth);
+            Assert.AreEqual(64f, root_child0.LayoutHeight);
+
+            Assert.AreEqual(0f, root_child1.LayoutX);
+            Assert.AreEqual(64f, root_child1.LayoutY);
+            Assert.AreEqual(100f, root_child1.LayoutWidth);
+            Assert.AreEqual(25f, root_child1.LayoutHeight);
+
+            Assert.AreEqual(0f, root_child2.LayoutX);
+            Assert.AreEqual(89f, root_child2.LayoutY);
+            Assert.AreEqual(100f, root_child2.LayoutWidth);
+            Assert.AreEqual(24f, root_child2.LayoutHeight);
+
+            CSSNode.SetExperimentalFeatureEnabled(CSSExperimentalFeature.Rounding, false);
+        }
+
+        [Test]
+        public void Test_rounding_fractial_input_4()
+        {
+            CSSNode.SetExperimentalFeatureEnabled(CSSExperimentalFeature.Rounding, true);
+
+            CSSNode root = new CSSNode();
+            root.SetPosition(CSSEdge.Top, 0.7f);
+            root.StyleWidth = 100f;
+            root.StyleHeight = 113.4f;
+
+            CSSNode root_child0 = new CSSNode();
+            root_child0.FlexGrow = 1f;
+            root_child0.FlexBasis = 50f;
+            root_child0.StyleHeight = 20f;
+            root.Insert(0, root_child0);
+
+            CSSNode root_child1 = new CSSNode();
+            root_child1.FlexGrow = 1f;
+            root_child1.StyleHeight = 10f;
+            root.Insert(1, root_child1);
+
+            CSSNode root_child2 = new CSSNode();
+            root_child2.FlexGrow = 1f;
+            root_child2.StyleHeight = 10f;
+            root.Insert(2, root_child2);
+            root.StyleDirection = CSSDirection.LTR;
+            root.CalculateLayout();
+
+            Assert.AreEqual(0f, root.LayoutX);
+            Assert.AreEqual(1f, root.LayoutY);
+            Assert.AreEqual(100f, root.LayoutWidth);
+            Assert.AreEqual(113f, root.LayoutHeight);
+
+            Assert.AreEqual(0f, root_child0.LayoutX);
+            Assert.AreEqual(0f, root_child0.LayoutY);
+            Assert.AreEqual(100f, root_child0.LayoutWidth);
+            Assert.AreEqual(64f, root_child0.LayoutHeight);
+
+            Assert.AreEqual(0f, root_child1.LayoutX);
+            Assert.AreEqual(64f, root_child1.LayoutY);
+            Assert.AreEqual(100f, root_child1.LayoutWidth);
+            Assert.AreEqual(25f, root_child1.LayoutHeight);
+
+            Assert.AreEqual(0f, root_child2.LayoutX);
+            Assert.AreEqual(89f, root_child2.LayoutY);
+            Assert.AreEqual(100f, root_child2.LayoutWidth);
+            Assert.AreEqual(24f, root_child2.LayoutHeight);
+
+            root.StyleDirection = CSSDirection.RTL;
+            root.CalculateLayout();
+
+            Assert.AreEqual(0f, root.LayoutX);
+            Assert.AreEqual(1f, root.LayoutY);
+            Assert.AreEqual(100f, root.LayoutWidth);
+            Assert.AreEqual(113f, root.LayoutHeight);
+
+            Assert.AreEqual(0f, root_child0.LayoutX);
+            Assert.AreEqual(0f, root_child0.LayoutY);
+            Assert.AreEqual(100f, root_child0.LayoutWidth);
+            Assert.AreEqual(64f, root_child0.LayoutHeight);
+
+            Assert.AreEqual(0f, root_child1.LayoutX);
+            Assert.AreEqual(64f, root_child1.LayoutY);
+            Assert.AreEqual(100f, root_child1.LayoutWidth);
+            Assert.AreEqual(25f, root_child1.LayoutHeight);
+
+            Assert.AreEqual(0f, root_child2.LayoutX);
+            Assert.AreEqual(89f, root_child2.LayoutY);
+            Assert.AreEqual(100f, root_child2.LayoutWidth);
+            Assert.AreEqual(24f, root_child2.LayoutHeight);
+
+            CSSNode.SetExperimentalFeatureEnabled(CSSExperimentalFeature.Rounding, false);
+        }
+
+    }
+}