public void cloning_two_levels()
{
var root = new YogaNode {
Width = 100, Height = 100
};
var root_child0 = new YogaNode {
FlexGrow = 1, FlexBasis = 15
};
root.Children.Add(root_child0);
var root_child1 = new YogaNode {
FlexGrow = 1
};
root.Children.Insert(1, root_child1);
var root_child1_0 = new YogaNode {
FlexBasis = 10, FlexGrow = 1
};
root_child1.Children.Add(root_child1_0);
var root_child1_1 = new YogaNode {
FlexBasis = 25
};
root_child1.Children.Insert(1, root_child1_1);
root.Calc.CalculateLayout(float.NaN, float.NaN, DirectionType.LTR);
Assert.AreEqual(40, root_child0.Layout.Height);
Assert.AreEqual(60, root_child1.Layout.Height);
Assert.AreEqual(35, root_child1_0.Layout.Height);
Assert.AreEqual(25, root_child1_1.Layout.Height);
var root2_child0 = new YogaNode(root_child0)
{
FlexGrow = 0, FlexBasis = 40
};
var root2_child1 = new YogaNode(root_child1);
var root2 = new YogaNode(root);
root2.ClearChildren();
root2.Children.Add(root2_child0);
root2.Children.Insert(1, root2_child1);
Assert.AreEqual(2, root2.Children.Count);
root2.Calc.CalculateLayout(float.NaN, float.NaN, DirectionType.LTR);
// Original root is unchanged
Assert.AreEqual(40, root_child0.Layout.Height);
Assert.AreEqual(60, root_child1.Layout.Height);
Assert.AreEqual(35, root_child1_0.Layout.Height);
Assert.AreEqual(25, root_child1_1.Layout.Height);
// New root has new layout at the top
Assert.AreEqual(40, root2_child0.Layout.Height);
Assert.AreEqual(60, root2_child1.Layout.Height);
// The deeper children are untouched.
Assert.AreEqual(root2_child1.Children[0], root_child1_0);
Assert.AreEqual(root2_child1.Children[1], root_child1_1);
}