public void AddColumnWithWarnIf()
        {
            SectionRow.WarnIf(false);
            var row = (IEnumerable <object>)SectionRow.Build();

            Assert.Equal(row.Last(), @"Text");

            SectionRow.WarnIf(true);
            row = (IEnumerable <object>)SectionRow.Build();

            Assert.Equal(row.Last(), @"warn");
        }