public void ToPixelSpaceAndFromPixelSpace()
        {
            var pixelScreen = new PixelScreenSpace(window);

            Assert.AreEqual(pixelScreen.TopLeft, pixelScreen.ToPixelSpace(pixelScreen.TopLeft));
            Assert.AreEqual(pixelScreen.BottomRight, pixelScreen.ToPixelSpace(pixelScreen.BottomRight));
            Assert.AreEqual(Size.Zero, pixelScreen.ToPixelSpace(Size.Zero));
            Assert.AreEqual(Size.One, pixelScreen.ToPixelSpace(Size.One));
            window.CloseAfterFrame();
        }