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");
}