protected static void ValidateTestBitmap(CGImage cgImage, byte alpha = 255)
{
Assert.NotNull(cgImage);
Assert.Equal(40, cgImage.Width);
Assert.Equal(40, cgImage.Height);
Assert.Equal(Get(SKColors.Red), cgImage.GetPixel(10, 10));
Assert.Equal(Get(SKColors.Green), cgImage.GetPixel(30, 10));
Assert.Equal(Get(SKColors.Blue), cgImage.GetPixel(10, 30));
Assert.Equal(Get(SKColors.Yellow), cgImage.GetPixel(30, 30));
SKColor Get(SKColor color) =>
alpha == 0
? SKColor.Empty
: color.WithAlpha(alpha);
}
