updated 'assertRaisesRegexp ' obsolete

Hey!
I am the maintainer of your project on Debian.
We recently migrated to python 3.12.
And some tests failed. I had to make a patch to run some tests:

• unittest.TestCase.assertRaisesRegexp = _assert_raises_regexp

• unittest.TestCase.assertRaisesRegex = _assert_raises_regex

following patch:
Index: python-certvalidator/tests/_unittest_compat.py

--- python-certvalidator.orig/tests/_unittest_compat.py
+++ python-certvalidator/tests/_unittest_compat.py
@@ -4,7 +4,7 @@ from future import unicode_literals,
import sys
import unittest
import re

+import pytest

_non_local = {'patched': False}

@@ -18,7 +18,7 @@ def patch():

 unittest.TestCase.assertIsInstance = _assert_is_instance
 unittest.TestCase.assertRaises = _assert_raises

• unittest.TestCase.assertRaisesRegexp = _assert_raises_regexp

• unittest.TestCase.assertRaisesRegex = _assert_raises_regex
  unittest.TestCase.assertLess = _assert_less
  unittest.TestCase.assertIn = _assert_in
  _non_local['patched'] = True
  @@ -51,7 +51,7 @@ def _assert_raises(self, excClass, calla
  callableObj(*args, **kwargs)

-def _assert_raises_regexp(self, expected_exception, expected_regexp, callable_obj=None, *args>
+def _assert_raises_regex(self, expected_exception, expected_regexp, callable_obj=None, *args,>
if expected_regexp is not None:
expected_regexp = re.compile(expected_regexp)
context = _AssertRaisesContext(expected_exception, self, expected_regexp)
Index: python-certvalidator/tests/test_certificate_validator.py

--- python-certvalidator.orig/tests/test_certificate_validator.py
+++ python-certvalidator/tests/test_certificate_validator.py
@@ -1,9 +1,11 @@
+#!/usr/bin/env python3

coding: utf-8

from future import unicode_literals, division, absolute_import, print_function

from datetime import datetime
import unittest
import os
+import pytest

from asn1crypto import pem, x509
from asn1crypto.util import timezone
@@ -52,7 +54,7 @@ class CertificateValidatorTests(unittest

     validator = CertificateValidator(cert, other_certs)

•    with self.assertRaisesRegexp(PathValidationError, 'expired'):
  

•    with self.assertRaisesRegex(PathValidationError, 'expired'):
         validator.validate_tls('codexns.io')
  

  @unittest.skip("Not running tests")
  @@ -65,7 +67,7 @@ class CertificateValidatorTests(unittest
  context = ValidationContext(moment=moment)
  validator = CertificateValidator(cert, other_certs, context)

•    with self.assertRaisesRegexp(PathValidationError, 'not valid'):
  

•    with self.assertRaisesRegex(PathValidationError, 'not valid'):
         validator.validate_tls('google.com')
  

  @unittest.skip("Not running tests")
  @@ -78,7 +80,7 @@ class CertificateValidatorTests(unittest
  context = ValidationContext(moment=moment)
  validator = CertificateValidator(cert, other_certs, context)

•    with self.assertRaisesRegexp(PathValidationError, 'for the purpose'):
  

•    with self.assertRaisesRegex(PathValidationError, 'for the purpose'):
         validator.validate_usage(set(['crl_sign']))
  

  @unittest.skip("Not running tests")
  Index: python-certvalidator/tests/test_validate.py
  ===================================================================
  --- python-certvalidator.orig/tests/test_validate.py
  +++ python-certvalidator/tests/test_validate.py
  @@ -1,3 +1,4 @@
  +#!/usr/bin/env python3

coding: utf-8

from future import unicode_literals, division, absolute_import, print_function

@@ -6,6 +7,7 @@ import base64
import unittest
import os
import sys
+import pytest

from asn1crypto import crl, ocsp, pem, x509
from asn1crypto.util import timezone
@@ -113,7 +115,7 @@ class ValidateTests(unittest.TestCase):
'(CRL|OCSP response) indicates the end-entity certificate was '
'revoked at 15:44:10 on 2014-04-23, due to an unspecified reason'
)

•    with self.assertRaisesRegexp(RevokedError, expected):
  

•    with self.assertRaisesRegex(RevokedError, expected):
         validate_path(context, path)
  

  @data('ocsp_info', True)
  @@ -135,7 +137,7 @@ class ValidateTests(unittest.TestCase):
  self.assertEqual(path_len, len(path))

     if excp_class:
  

•        with self.assertRaisesRegexp(excp_class, excp_msg):
  

•        with self.assertRaisesRegex(excp_class, excp_msg):
             validate_path(context, path)
     else:
         validate_path(context, path)
  

@@ -684,7 +686,7 @@ class ValidateTests(unittest.TestCase):
'The path could not be validated because the end-entity certificate '
'issuer name could not be matched'
)

•    with self.assertRaisesRegexp(PathValidationError, expected):
  

•    with self.assertRaisesRegex(PathValidationError, expected):
         validate_path(context, path)
  

  def test_nist_40302_invalid_name_chaining_order_test2(self):
  @@ -716,7 +718,7 @@ class ValidateTests(unittest.TestCase):
  'The path could not be validated because the end-entity certificate '
  'issuer name could not be matched'
  )

•    with self.assertRaisesRegexp(PathValidationError, expected):
  

•    with self.assertRaisesRegex(PathValidationError, expected):
         validate_path(context, path)
  

  @data('nist_info', True)
  @@ -742,7 +744,7 @@ class ValidateTests(unittest.TestCase):
  self.assertEqual(path_len, len(path))

     if excp_class:
  

•        with self.assertRaisesRegexp(excp_class, excp_msg):
  

•        with self.assertRaisesRegex(excp_class, excp_msg):
             validate_path(context, path)
     else:
         validate_path(context, path)
  

Start with tests/_unittest_compat.py and search the named test_certificate_validator.py and test_validate.py files for assertRaisesRegexp references. Run the test suite with Python 3.12 and confirm the obsolete API references are removed and the affected tests execute successfully.