public void LoadFile_FileNameIsEmpty_ThrowExceptation()
        {
            // Arrange
            string fileName = string.Empty;
            var    img      = new ImageProcessingMethod(new ImageProcessing());

            // Assert
            Assert.Throws <ArgumentException>(() => img.LoadFile(fileName));
        }
        public void ToMainColorAsync_CorrectImage_ReturnNotNull()
        {
            // Arrange
            string fileName = "./Images/test2.jpg";
            var    img      = new ImageProcessingMethod(new ImageProcessing());
            var    image    = img.LoadFile(fileName);

            // Act
            var result = img.ToMainColorsAsync(image);

            // Assert
            Assert.NotNull(result);
        }
        public void LoadFile_CorrectFileName_ResultNotEmpty()
        {
            // Arrange
            string fileName = "./Images/test2.jpg";

            var img = new ImageProcessingMethod(new ImageProcessing());

            // Act
            var result = img.LoadFile(fileName);

            // Assert
            Assert.NotNull(result);
        }