public void SizePropertyParserWorksWithSingleNumber()
        {
            var sizeValue  = SpecialSgfPropertyValueParsers.SizeParser("12");
            var sizeNumber = sizeValue as SgfNumberValue;

            Assert.IsNotNull(sizeNumber);
            Assert.AreEqual(12, sizeNumber.Value);
        }
        public void SizePropertyParserWorksWithTwoDimensions()
        {
            var sizeValue  = SpecialSgfPropertyValueParsers.SizeParser("12:20");
            var sizeNumber = sizeValue as SgfComposePropertyValue <int, int>;

            Assert.IsNotNull(sizeNumber);
            Assert.AreEqual(12, sizeNumber.LeftValue);
            Assert.AreEqual(20, sizeNumber.RightValue);
        }