public void FirstOrDefaultNonEmptyListSource()
{
ListData <int> data = ListData(1, 2, 3);
Assert.That(data.FirstOrDefault(), Is.EqualTo(1));
Assert.That(data.IsEnumerated, Is.False);
}
public void FirstOrDefaultEmptyListSource()
{
ListData <object> data = EmptyListData;
Assert.That(data.FirstOrDefault(), Is.Null);
Assert.That(data.IsEnumerated, Is.False); // # Should not enumerate due to IList optimization
}