public void GetImageColorsForInvalidLocalImage()
        {
            //Arrange
            ImageFile FileObj = new ImageFile {
                FileName = @":\videos\images\unitTest\blank.png"
            };

            //Act
            List <Colors> actualResult = _grab.GetImageColors(FileObj);

            //Assert
            Assert.IsTrue((actualResult == null || actualResult.Count == 0), "Exception occured in geting colors from image for invalid image");
        }