python-freezegun/remove_dependency_on_mock.patch

--- a/tests/test_ticking.py
+++ b/tests/test_ticking.py
@@ -1,7 +1,10 @@
 import datetime
 import time
-import mock
 import pytest
+try:
+    import mock
+except ImportError:
+    import unittest.mock as mock
 
 from freezegun import freeze_time
 from tests import utils
--- a/tests/test_utils.py
+++ b/tests/test_utils.py
@@ -1,6 +1,9 @@
 from unittest import SkipTest
 
-import mock
+try:
+    import mock
+except ImportError:
+    import unittest.mock as mock
 
 from freezegun import api
 from tests import utils