protected void CheckSpecialField <T>(string name, string displayName)
{
ViewField field = ViewFields.FindByName(name);
Assert.That(field, Is.Not.Null, "Unabled to find field: {0}", name);
FieldMapping specialFieldMapping = ModuleMapping.GetFieldMapping(field, true);
Assert.That(specialFieldMapping, Is.Not.Null);
Assert.That(specialFieldMapping, Is.TypeOf <T>());
Assert.That(specialFieldMapping.Name, Is.EqualTo(displayName));
}