public void ToOverlay_ReturnsACompositeOverlay()
{
var overlayManager = new OverlayManager();
var overlay = new OverlayThatChangesInterpolationMode();
overlayManager.AddOverlay(overlay);
Overlay compositeOverlay = overlayManager.ToOverlay();
var compositeOverlayManager = new OverlayManager();
compositeOverlayManager.AddOverlay(compositeOverlay);
using (Bitmap bitmap = new Bitmap(32, 32))
compositeOverlayManager.PaintOverlaysOnImage(bitmap, 0, 0);
Assert.IsTrue(overlay.WasPainted);
}
