public void GenerateTextEmpty()
        {
            var material = new An8Material();

            var text = material.GenerateText();

            string expected =
                @"material { """"
}
";

            Assert.Equal(
                expected.Replace("\r\n", "\n"),
                text.Replace("\r\n", "\n"));
        }
        public void GenerateTextBackSurface()
        {
            var material = new An8Material();

            material.BackSurface = new An8Surface();

            var text = material.GenerateText();

            string expected =
                @"material { """"
  backsurface {
    alpha { 255 }
    brilliance { 0.000000 }
    phongsize { 0.000000 }
  }
}
";

            Assert.Equal(
                expected.Replace("\r\n", "\n"),
                text.Replace("\r\n", "\n"));
        }