### Blockette 012 tests ###

# Removed sequence number because it is not in the XML version of the blockette.
--01-SEED
012006300012000,177,06:03:36.0000~2000,177,07:51:03.3608~000000

--01-XSEED-1.0
<volume_timespan_index blockette="012">
  <number_of_spans_in_table>1</number_of_spans_in_table>
  <timespan>
    <beginning_of_span>2000-06-25T06:03:36.000000Z</beginning_of_span>
    <end_of_span>2000-06-25T07:51:03.360800Z</end_of_span>
  </timespan>
</volume_timespan_index>