public void SameImageShouldHaveSameHash() { Image image = Properties.Resources.lolFace; //set wallpaper Wallpaper.PaintWall(image, Wallpaper.Style.Fill); //try different styles? see if that changes the actual wallpaper file //hash wallpaper //hash resource //save resource to tmp then hash temp //compare all hashes using (var hasher = new Hasher()) { } }