public void InsufficientData()
{
var stream = new MemoryStream();
var writer = new DateTimeZoneWriter(stream, null);
writer.WriteByte(1);
writer.WriteCount(10);
stream.Position = 0;
var iterator = TzdbStreamField.ReadFields(stream).GetEnumerator();
Assert.Throws <InvalidNodaDataException>(() => iterator.MoveNext());
}
