public void GetChoiceText_Test()
{
var itm = new CustomItem();
itm.CustomChoice = TheChoice.Choice2;
var fieldName = itm.GetChoice(i => i.CustomChoice);
Assert.That(fieldName, Is.EqualTo("The Choice Number Two"));
itm.CustomChoice = TheChoice.Choice3;
fieldName = itm.GetChoice(i => i.CustomChoice);
Assert.That(fieldName, Is.EqualTo("Choice3"));
}