Implement test to read region_set_data
Implement test to read region_set_data

nismod/smif,tomalrussell/smif,tomalrussell/smif,nismod/smif,willu47/smif,willu47/smif,willu47/smif,nismod/smif,tomalrussell/smif,nismod/smif,tomalrussell/smif,willu47/smif