code: def test_pylong_misbehavior_error_path_from_str(
      self, mock_int_from_str
  ):
      big_value = "7" * 19_999
      with support.adjust_int_max_str_digits(20_000):
          mock_int_from_str.return_value = b"not an int"
          with self.assertRaises(TypeError) as ctx:
              int(big_value)
          self.assertIn(
              "_pylong.int_from_string did not", str(ctx.exception)
          )
  
          mock_int_from_str.side_effect = RuntimeError("test123")
          with self.assertRaises(RuntimeError):
              int(big_value)
  
imports: import sys
  import time
  import unittest
  from unittest import mock
  from test import support
  from test.test_grammar import VALID_UNDERSCORE_LITERALS, INVALID_UNDERSCORE_LITERALS
label_desc: Use image node_id 7 for calling the PyLongModuleTests obj's underlying member method code with example usage: obj.test_pylong_misbehavior_error_path_from_str(mock_int_from_str) without return types