public void EnsureIndexValueLessThanOneThrows(int index)
 {
     Record.Exception(() => {
         ColumnNameHelper.GetExcelColumnName(index);
     });
 }
        public void ColumnIndexTests(int index, string expected)
        {
            var actual = ColumnNameHelper.GetExcelColumnName(index);

            Assert.Equal(expected, actual);
        }