public void TestThatLayoutIsCorrectWhenWeSwapViewOrder()
{
var containerSize = new SizeF(300, 50);
var container = new NativeView(new CGRect(0, 0, containerSize.Width, containerSize.Height));
container.Yoga().IsEnabled = true;
container.Yoga().FlexDirection = YogaFlexDirection.Row;
var subview1 = new NativeView();
subview1.Yoga().IsEnabled = true;
subview1.Yoga().FlexGrow = 1;
container.AddSubview(subview1);
var subview2 = new NativeView();
subview2.Yoga().IsEnabled = true;
subview2.Yoga().FlexGrow = 1;
container.AddSubview(subview2);
var subview3 = new NativeView();
subview3.Yoga().IsEnabled = true;
subview3.Yoga().FlexGrow = 1;
container.AddSubview(subview3);
container.Yoga().ApplyLayout();
Assert.True(subview1.Frame == new CGRect(0, 0, 100, 50));
Assert.True(subview2.Frame == new CGRect(100, 0, 100, 50), $"It's actually {subview2.Frame}");
Assert.True(subview3.Frame == new CGRect(200, 0, 100, 50));
container.ExchangeSubview(2, 0);
subview2.Yoga().IsIncludeInLayout = false;
container.Yoga().ApplyLayout();
Assert.True(subview3.Frame == new CGRect(0, 0, 150, 50));
Assert.True(subview1.Frame == new CGRect(150, 0, 150, 50));
//// this frame shouldn't have been modified since last time.
Assert.True(subview2.Frame == new CGRect(100, 0, 100, 50));
}