code: def _test_mapping_file_ucm(self):
      with self.open_mapping_file() as f:
          ucmdata = f.read()
      uc = re.findall(
          '<a u="([A-F0-9]{4})" b="([0-9A-F ]+)"/>', ucmdata
      )
      for uni, coded in uc:
          unich = chr(int(uni, 16))
          codech = bytes.fromhex(coded)
          self._testpoint(codech, unich)
  
imports: import codecs
  import os
  import re
  import sys
  import unittest
  from http.client import HTTPException
  from test import support
  from io import BytesIO
label_desc: Use image node_id 5 for calling the TestBase_Mapping obj's underlying member method code with example usage: obj._test_mapping_file_ucm() without return types