code: def test_b32decode_error(self):
      tests = [b"abc", b"ABCDEF==", b"==ABCDEF"]
      prefixes = [
          b"M",
          b"ME",
          b"MFRA",
          b"MFRGG",
          b"MFRGGZA",
          b"MFRGGZDF",
      ]
      for i in range(0, 17):
          if i:
              tests.append(b"=" * i)
          for prefix in prefixes:
              if len(prefix) + i != 8:
                  tests.append(prefix + b"=" * i)
      for data in tests:
          with self.subTest(data=data):
              with self.assertRaises(binascii.Error):
                  base64.b32decode(data)
              with self.assertRaises(binascii.Error):
                  base64.b32decode(data.decode("ascii"))
  
imports: import unittest
  import base64
  import binascii
  import os
  from array import array
  from test.support import os_helper
  from test.support import script_helper
label_desc: Use image node_id 13 for calling the BaseXYTestCase obj's underlying member method code with example usage: obj.test_b32decode_error() without return types