+# Copyright (C) The Arvados Authors. All rights reserved.
+#
+# SPDX-License-Identifier: Apache-2.0
+
from __future__ import print_function
from __future__ import absolute_import
from builtins import str
from builtins import range
import hashlib
-import mock
import os
import random
import shutil
import threading
import unittest
+from unittest import mock
+
import arvados
import arvados.cache
from . import run_test_server
-
def _random(n):
return bytearray(random.getrandbits(8) for _ in range(n))