[Test, Category("Slow")]
public void ChangeOrientation()
{
    var window = Resolve<Window>();
    var line = new Line2D(Vector2D.Zero, Vector2D.One, Color.Green);
    window.BackgroundColor = Color.Blue;
    new Command(() => window.ViewportPixelSize = new Size(800, 480)).Add(new KeyTrigger(Key.A));
    new Command(() => window.ViewportPixelSize = new Size(480, 800)).Add(new KeyTrigger(Key.B));
    RunAfterFirstFrame(() =>
    {
        var screen = ScreenSpace.Current;
        var startPosition = screen.Viewport.TopLeft;
        var endPosition = screen.Viewport.BottomRight;
        window.Title = "Size: " + window.ViewportPixelSize + " Start: " + startPosition +
            " End: " + endPosition;
        line.StartPoint = startPosition;
        line.EndPoint = endPosition;
    });
}

[Test, Category("Slow")]
public void ChangeOrientation()
{
    var window = Resolve<Window>();
    var line = new Line2D(Vector2D.Zero, Vector2D.One, Color.Green);
    window.BackgroundColor = Color.Blue;
    new Command(() => window.ViewportPixelSize = new Size(800, 480)).Add(new KeyTrigger(Key.A));
    new Command(() => window.ViewportPixelSize = new Size(480, 800)).Add(new KeyTrigger(Key.B));
    RunAfterFirstFrame(() =>
    {
        var screen = ScreenSpace.Current;
        var startPosition = screen.Viewport.TopLeft;
        var endPosition = screen.Viewport.BottomRight;
        window.Title = "Size: " + window.ViewportPixelSize + " Start: " + startPosition +
            " End: " + endPosition;
        line.StartPoint = startPosition;
        line.EndPoint = endPosition;
    });
}