diff -Nru google-auth-2.30.0.orig/tests/compute_engine/test_credentials.py google-auth-2.30.0/tests/compute_engine/test_credentials.py
--- google-auth-2.30.0.orig/tests/compute_engine/test_credentials.py	2024-06-07 01:17:33.000000000 +0200
+++ google-auth-2.30.0/tests/compute_engine/test_credentials.py	2024-07-04 10:10:10.154047522 +0200
@@ -14,7 +14,7 @@
 import base64
 import datetime
 
-import mock
+from unittest import mock
 import pytest  # type: ignore
 import responses  # type: ignore
 
diff -Nru google-auth-2.30.0.orig/tests/compute_engine/test__metadata.py google-auth-2.30.0/tests/compute_engine/test__metadata.py
--- google-auth-2.30.0.orig/tests/compute_engine/test__metadata.py	2024-06-07 01:17:33.000000000 +0200
+++ google-auth-2.30.0/tests/compute_engine/test__metadata.py	2024-07-04 10:10:10.157380876 +0200
@@ -18,7 +18,7 @@
 import json
 import os
 
-import mock
+from unittest import mock
 import pytest  # type: ignore
 
 from google.auth import _helpers
diff -Nru google-auth-2.30.0.orig/tests/conftest.py google-auth-2.30.0/tests/conftest.py
--- google-auth-2.30.0.orig/tests/conftest.py	2024-06-07 01:17:33.000000000 +0200
+++ google-auth-2.30.0/tests/conftest.py	2024-07-04 10:10:10.064046957 +0200
@@ -15,7 +15,7 @@
 import os
 import sys
 
-import mock
+from unittest import mock
 import pytest  # type: ignore
 
 
diff -Nru google-auth-2.30.0.orig/tests/crypt/test__python_rsa.py google-auth-2.30.0/tests/crypt/test__python_rsa.py
--- google-auth-2.30.0.orig/tests/crypt/test__python_rsa.py	2024-06-07 01:17:33.000000000 +0200
+++ google-auth-2.30.0/tests/crypt/test__python_rsa.py	2024-07-04 10:10:10.184047711 +0200
@@ -16,7 +16,7 @@
 import json
 import os
 
-import mock
+from unittest import mock
 from pyasn1_modules import pem  # type: ignore
 import pytest  # type: ignore
 import rsa  # type: ignore
diff -Nru google-auth-2.30.0.orig/tests/oauth2/test_challenges.py google-auth-2.30.0/tests/oauth2/test_challenges.py
--- google-auth-2.30.0.orig/tests/oauth2/test_challenges.py	2024-06-07 01:17:33.000000000 +0200
+++ google-auth-2.30.0/tests/oauth2/test_challenges.py	2024-07-04 10:10:10.130714042 +0200
@@ -18,7 +18,7 @@
 import os
 import sys
 
-import mock
+from unittest import mock
 import pytest  # type: ignore
 import pyu2f  # type: ignore
 
diff -Nru google-auth-2.30.0.orig/tests/oauth2/test__client.py google-auth-2.30.0/tests/oauth2/test__client.py
--- google-auth-2.30.0.orig/tests/oauth2/test__client.py	2024-06-07 01:17:33.000000000 +0200
+++ google-auth-2.30.0/tests/oauth2/test__client.py	2024-07-04 10:10:10.117380625 +0200
@@ -18,7 +18,7 @@
 import os
 import urllib
 
-import mock
+from unittest import mock
 import pytest  # type: ignore
 
 from google.auth import _helpers
diff -Nru google-auth-2.30.0.orig/tests/oauth2/test_credentials.py google-auth-2.30.0/tests/oauth2/test_credentials.py
--- google-auth-2.30.0.orig/tests/oauth2/test_credentials.py	2024-06-07 01:17:33.000000000 +0200
+++ google-auth-2.30.0/tests/oauth2/test_credentials.py	2024-07-04 10:10:10.124047334 +0200
@@ -18,7 +18,7 @@
 import pickle
 import sys
 
-import mock
+from unittest import mock
 import pytest  # type: ignore
 
 from google.auth import _helpers
diff -Nru google-auth-2.30.0.orig/tests/oauth2/test_gdch_credentials.py google-auth-2.30.0/tests/oauth2/test_gdch_credentials.py
--- google-auth-2.30.0.orig/tests/oauth2/test_gdch_credentials.py	2024-06-07 01:17:33.000000000 +0200
+++ google-auth-2.30.0/tests/oauth2/test_gdch_credentials.py	2024-07-04 10:10:10.110713917 +0200
@@ -17,7 +17,7 @@
 import json
 import os
 
-import mock
+from unittest import mock
 import pytest  # type: ignore
 import requests
 
diff -Nru google-auth-2.30.0.orig/tests/oauth2/test_id_token.py google-auth-2.30.0/tests/oauth2/test_id_token.py
--- google-auth-2.30.0.orig/tests/oauth2/test_id_token.py	2024-06-07 01:17:33.000000000 +0200
+++ google-auth-2.30.0/tests/oauth2/test_id_token.py	2024-07-04 10:10:10.110713917 +0200
@@ -15,7 +15,7 @@
 import json
 import os
 
-import mock
+from unittest import mock
 import pytest  # type: ignore
 
 from google.auth import environment_vars
diff -Nru google-auth-2.30.0.orig/tests/oauth2/test_reauth.py google-auth-2.30.0/tests/oauth2/test_reauth.py
--- google-auth-2.30.0.orig/tests/oauth2/test_reauth.py	2024-06-07 01:17:33.000000000 +0200
+++ google-auth-2.30.0/tests/oauth2/test_reauth.py	2024-07-04 10:10:10.127380688 +0200
@@ -14,7 +14,7 @@
 
 import copy
 
-import mock
+from unittest import mock
 import pytest  # type: ignore
 
 from google.auth import exceptions
diff -Nru google-auth-2.30.0.orig/tests/oauth2/test_service_account.py google-auth-2.30.0/tests/oauth2/test_service_account.py
--- google-auth-2.30.0.orig/tests/oauth2/test_service_account.py	2024-06-07 01:17:33.000000000 +0200
+++ google-auth-2.30.0/tests/oauth2/test_service_account.py	2024-07-04 10:10:10.120713979 +0200
@@ -16,7 +16,7 @@
 import json
 import os
 
-import mock
+from unittest import mock
 import pytest  # type: ignore
 
 from google.auth import _helpers
diff -Nru google-auth-2.30.0.orig/tests/oauth2/test_sts.py google-auth-2.30.0/tests/oauth2/test_sts.py
--- google-auth-2.30.0.orig/tests/oauth2/test_sts.py	2024-06-07 01:17:33.000000000 +0200
+++ google-auth-2.30.0/tests/oauth2/test_sts.py	2024-07-04 10:10:10.134047397 +0200
@@ -16,7 +16,7 @@
 import json
 import urllib
 
-import mock
+from unittest import mock
 import pytest  # type: ignore
 
 from google.auth import exceptions
diff -Nru google-auth-2.30.0.orig/tests/oauth2/test_webauthn_handler_factory.py google-auth-2.30.0/tests/oauth2/test_webauthn_handler_factory.py
--- google-auth-2.30.0.orig/tests/oauth2/test_webauthn_handler_factory.py	2024-06-07 01:17:33.000000000 +0200
+++ google-auth-2.30.0/tests/oauth2/test_webauthn_handler_factory.py	2024-07-04 10:10:10.137380751 +0200
@@ -1,4 +1,4 @@
-import mock
+from unittest import mock
 import pytest  # type: ignore
 
 from google.oauth2 import webauthn_handler
diff -Nru google-auth-2.30.0.orig/tests/oauth2/test_webauthn_handler.py google-auth-2.30.0/tests/oauth2/test_webauthn_handler.py
--- google-auth-2.30.0.orig/tests/oauth2/test_webauthn_handler.py	2024-06-07 01:17:33.000000000 +0200
+++ google-auth-2.30.0/tests/oauth2/test_webauthn_handler.py	2024-07-04 10:10:10.114047271 +0200
@@ -1,7 +1,7 @@
 import json
 import struct
 
-import mock
+from unittest import mock
 import pytest  # type: ignore
 
 from google.auth import exceptions
diff -Nru google-auth-2.30.0.orig/tests/test_app_engine.py google-auth-2.30.0/tests/test_app_engine.py
--- google-auth-2.30.0.orig/tests/test_app_engine.py	2024-06-07 01:17:33.000000000 +0200
+++ google-auth-2.30.0/tests/test_app_engine.py	2024-07-04 10:10:10.090713791 +0200
@@ -14,7 +14,7 @@
 
 import datetime
 
-import mock
+from unittest import mock
 import pytest  # type: ignore
 
 from google.auth import app_engine
diff -Nru google-auth-2.30.0.orig/tests/test_aws.py google-auth-2.30.0/tests/test_aws.py
--- google-auth-2.30.0.orig/tests/test_aws.py	2024-06-07 01:17:33.000000000 +0200
+++ google-auth-2.30.0/tests/test_aws.py	2024-07-04 10:10:10.204047836 +0200
@@ -18,7 +18,7 @@
 import os
 import urllib.parse
 
-import mock
+from unittest import mock
 import pytest  # type: ignore
 
 from google.auth import _helpers, external_account
diff -Nru google-auth-2.30.0.orig/tests/test__cloud_sdk.py google-auth-2.30.0/tests/test__cloud_sdk.py
--- google-auth-2.30.0.orig/tests/test__cloud_sdk.py	2024-06-07 01:17:33.000000000 +0200
+++ google-auth-2.30.0/tests/test__cloud_sdk.py	2024-07-04 10:10:10.100713854 +0200
@@ -18,7 +18,7 @@
 import subprocess
 import sys
 
-import mock
+from unittest import mock
 import pytest  # type: ignore
 
 from google.auth import _cloud_sdk
diff -Nru google-auth-2.30.0.orig/tests/test_credentials.py google-auth-2.30.0/tests/test_credentials.py
--- google-auth-2.30.0.orig/tests/test_credentials.py	2024-06-07 01:17:33.000000000 +0200
+++ google-auth-2.30.0/tests/test_credentials.py	2024-07-04 10:10:10.144047460 +0200
@@ -14,7 +14,7 @@
 
 import datetime
 
-import mock
+from unittest import mock
 import pytest  # type: ignore
 
 from google.auth import _helpers
diff -Nru google-auth-2.30.0.orig/tests/test__default.py google-auth-2.30.0/tests/test__default.py
--- google-auth-2.30.0.orig/tests/test__default.py	2024-06-07 01:17:33.000000000 +0200
+++ google-auth-2.30.0/tests/test__default.py	2024-07-04 10:10:10.147380814 +0200
@@ -15,7 +15,7 @@
 import json
 import os
 
-import mock
+from unittest import mock
 import pytest  # type: ignore
 
 from google.auth import _default
diff -Nru google-auth-2.30.0.orig/tests/test_downscoped.py google-auth-2.30.0/tests/test_downscoped.py
--- google-auth-2.30.0.orig/tests/test_downscoped.py	2024-06-07 01:17:33.000000000 +0200
+++ google-auth-2.30.0/tests/test_downscoped.py	2024-07-04 10:10:10.154047522 +0200
@@ -17,7 +17,7 @@
 import json
 import urllib
 
-import mock
+from unittest import mock
 import pytest  # type: ignore
 
 from google.auth import _helpers
diff -Nru google-auth-2.30.0.orig/tests/test__exponential_backoff.py google-auth-2.30.0/tests/test__exponential_backoff.py
--- google-auth-2.30.0.orig/tests/test__exponential_backoff.py	2024-06-07 01:17:33.000000000 +0200
+++ google-auth-2.30.0/tests/test__exponential_backoff.py	2024-07-04 10:10:10.054046894 +0200
@@ -12,7 +12,7 @@
 # See the License for the specific language governing permissions and
 # limitations under the License.
 
-import mock
+from unittest import mock
 
 from google.auth import _exponential_backoff
 
diff -Nru google-auth-2.30.0.orig/tests/test_external_account_authorized_user.py google-auth-2.30.0/tests/test_external_account_authorized_user.py
--- google-auth-2.30.0.orig/tests/test_external_account_authorized_user.py	2024-06-07 01:17:33.000000000 +0200
+++ google-auth-2.30.0/tests/test_external_account_authorized_user.py	2024-07-04 10:10:10.150714168 +0200
@@ -16,7 +16,7 @@
 import http.client as http_client
 import json
 
-import mock
+from unittest import mock
 import pytest  # type: ignore
 
 from google.auth import exceptions
diff -Nru google-auth-2.30.0.orig/tests/test_external_account.py google-auth-2.30.0/tests/test_external_account.py
--- google-auth-2.30.0.orig/tests/test_external_account.py	2024-06-07 01:17:33.000000000 +0200
+++ google-auth-2.30.0/tests/test_external_account.py	2024-07-04 10:10:10.057380248 +0200
@@ -17,7 +17,7 @@
 import json
 import urllib
 
-import mock
+from unittest import mock
 import pytest  # type: ignore
 
 from google.auth import _helpers
diff -Nru google-auth-2.30.0.orig/tests/test_iam.py google-auth-2.30.0/tests/test_iam.py
--- google-auth-2.30.0.orig/tests/test_iam.py	2024-06-07 01:17:33.000000000 +0200
+++ google-auth-2.30.0/tests/test_iam.py	2024-07-04 10:10:10.164047585 +0200
@@ -17,7 +17,7 @@
 import http.client as http_client
 import json
 
-import mock
+from unittest import mock
 import pytest  # type: ignore
 
 from google.auth import _helpers
diff -Nru google-auth-2.30.0.orig/tests/test_identity_pool.py google-auth-2.30.0/tests/test_identity_pool.py
--- google-auth-2.30.0.orig/tests/test_identity_pool.py	2024-06-07 01:17:33.000000000 +0200
+++ google-auth-2.30.0/tests/test_identity_pool.py	2024-07-04 10:10:10.167380939 +0200
@@ -18,7 +18,7 @@
 import os
 import urllib
 
-import mock
+from unittest import mock
 import pytest  # type: ignore
 
 from google.auth import _helpers, external_account
diff -Nru google-auth-2.30.0.orig/tests/test_impersonated_credentials.py google-auth-2.30.0/tests/test_impersonated_credentials.py
--- google-auth-2.30.0.orig/tests/test_impersonated_credentials.py	2024-06-07 01:17:33.000000000 +0200
+++ google-auth-2.30.0/tests/test_impersonated_credentials.py	2024-07-04 10:10:10.200714482 +0200
@@ -17,7 +17,7 @@
 import json
 import os
 
-import mock
+from unittest import mock
 import pytest  # type: ignore
 
 from google.auth import _helpers
diff -Nru google-auth-2.30.0.orig/tests/test_jwt.py google-auth-2.30.0/tests/test_jwt.py
--- google-auth-2.30.0.orig/tests/test_jwt.py	2024-06-07 01:17:33.000000000 +0200
+++ google-auth-2.30.0/tests/test_jwt.py	2024-07-04 10:10:10.170714294 +0200
@@ -17,7 +17,7 @@
 import json
 import os
 
-import mock
+from unittest import mock
 import pytest  # type: ignore
 
 from google.auth import _helpers
diff -Nru google-auth-2.30.0.orig/tests/test_metrics.py google-auth-2.30.0/tests/test_metrics.py
--- google-auth-2.30.0.orig/tests/test_metrics.py	2024-06-07 01:17:33.000000000 +0200
+++ google-auth-2.30.0/tests/test_metrics.py	2024-07-04 10:10:10.107380563 +0200
@@ -14,7 +14,7 @@
 
 import platform
 
-import mock
+from unittest import mock
 
 from google.auth import metrics
 from google.auth import version
diff -Nru google-auth-2.30.0.orig/tests/test__oauth2client.py google-auth-2.30.0/tests/test__oauth2client.py
--- google-auth-2.30.0.orig/tests/test__oauth2client.py	2024-06-07 01:17:33.000000000 +0200
+++ google-auth-2.30.0/tests/test__oauth2client.py	2024-07-04 10:10:10.094047145 +0200
@@ -17,7 +17,7 @@
 import os
 import sys
 
-import mock
+from unittest import mock
 import pytest  # type: ignore
 
 try:
diff -Nru google-auth-2.30.0.orig/tests/test_pluggable.py google-auth-2.30.0/tests/test_pluggable.py
--- google-auth-2.30.0.orig/tests/test_pluggable.py	2024-06-07 01:17:33.000000000 +0200
+++ google-auth-2.30.0/tests/test_pluggable.py	2024-07-04 10:10:10.200714482 +0200
@@ -16,7 +16,7 @@
 import os
 import subprocess
 
-import mock
+from unittest import mock
 import pytest  # type: ignore
 
 from google.auth import exceptions
diff -Nru google-auth-2.30.0.orig/tests/test__refresh_worker.py google-auth-2.30.0/tests/test__refresh_worker.py
--- google-auth-2.30.0.orig/tests/test__refresh_worker.py	2024-06-07 01:17:33.000000000 +0200
+++ google-auth-2.30.0/tests/test__refresh_worker.py	2024-07-04 10:10:10.187381065 +0200
@@ -17,7 +17,7 @@
 import threading
 import time
 
-import mock
+from unittest import mock
 import pytest  # type: ignore
 
 from google.auth import _refresh_worker, credentials, exceptions
diff -Nru google-auth-2.30.0.orig/tests/transport/test__custom_tls_signer.py google-auth-2.30.0/tests/transport/test__custom_tls_signer.py
--- google-auth-2.30.0.orig/tests/transport/test__custom_tls_signer.py	2024-06-07 01:17:33.000000000 +0200
+++ google-auth-2.30.0/tests/transport/test__custom_tls_signer.py	2024-07-04 10:10:10.067380311 +0200
@@ -15,7 +15,7 @@
 import ctypes
 import os
 
-import mock
+from unittest import mock
 import pytest  # type: ignore
 from requests.packages.urllib3.util.ssl_ import create_urllib3_context  # type: ignore
 import urllib3.contrib.pyopenssl  # type: ignore
diff -Nru google-auth-2.30.0.orig/tests/transport/test_grpc.py google-auth-2.30.0/tests/transport/test_grpc.py
--- google-auth-2.30.0.orig/tests/transport/test_grpc.py	2024-06-07 01:17:33.000000000 +0200
+++ google-auth-2.30.0/tests/transport/test_grpc.py	2024-07-04 10:10:10.070713666 +0200
@@ -16,7 +16,7 @@
 import os
 import time
 
-import mock
+from unittest import mock
 import pytest  # type: ignore
 
 from google.auth import _helpers
diff -Nru google-auth-2.30.0.orig/tests/transport/test__mtls_helper.py google-auth-2.30.0/tests/transport/test__mtls_helper.py
--- google-auth-2.30.0.orig/tests/transport/test__mtls_helper.py	2024-06-07 01:17:33.000000000 +0200
+++ google-auth-2.30.0/tests/transport/test__mtls_helper.py	2024-07-04 10:10:10.077380374 +0200
@@ -15,7 +15,7 @@
 import os
 import re
 
-import mock
+from unittest import mock
 from OpenSSL import crypto
 import pytest  # type: ignore
 
diff -Nru google-auth-2.30.0.orig/tests/transport/test_mtls.py google-auth-2.30.0/tests/transport/test_mtls.py
--- google-auth-2.30.0.orig/tests/transport/test_mtls.py	2024-06-07 01:17:33.000000000 +0200
+++ google-auth-2.30.0/tests/transport/test_mtls.py	2024-07-04 10:10:10.080713728 +0200
@@ -12,7 +12,7 @@
 # See the License for the specific language governing permissions and
 # limitations under the License.
 
-import mock
+from unittest import mock
 import pytest  # type: ignore
 
 from google.auth import exceptions
diff -Nru google-auth-2.30.0.orig/tests/transport/test_requests.py google-auth-2.30.0/tests/transport/test_requests.py
--- google-auth-2.30.0.orig/tests/transport/test_requests.py	2024-06-07 01:17:33.000000000 +0200
+++ google-auth-2.30.0/tests/transport/test_requests.py	2024-07-04 10:10:10.084047083 +0200
@@ -19,7 +19,7 @@
 import sys
 
 import freezegun
-import mock
+from unittest import mock
 import OpenSSL
 import pytest  # type: ignore
 import requests
diff -Nru google-auth-2.30.0.orig/tests/transport/test_urllib3.py google-auth-2.30.0/tests/transport/test_urllib3.py
--- google-auth-2.30.0.orig/tests/transport/test_urllib3.py	2024-06-07 01:17:33.000000000 +0200
+++ google-auth-2.30.0/tests/transport/test_urllib3.py	2024-07-04 10:10:10.064046957 +0200
@@ -16,7 +16,7 @@
 import os
 import sys
 
-import mock
+from unittest import mock
 import OpenSSL
 import pytest  # type: ignore
 import urllib3  # type: ignore