public void ReturnsNumericRowForLowerCase()
        {
            GridReference gridReference = new GridReference('d', 10);

            Assert.Equal(4, gridReference.GetNumericRow());
        }
        public void ReturnsNumericRowForZ()
        {
            GridReference gridReference = new GridReference('Z', 10);

            Assert.Equal(26, gridReference.GetNumericRow());
        }