def METHOD_NAME(self):
    'Test Header and Tail Size field'
    self.assertEqual(self.management_base.get_header_size(), 22)
    self.assertEqual(self.management_base.get_tail_size(), 0)
    self.assertEqual(self.management_disassociation.get_header_size(), 2)
    self.assertEqual(self.management_disassociation.get_tail_size(), 0)