diff --git a/test/unit/cli/test_relinker.py b/test/unit/cli/test_relinker.py
index cad37efc16..ef511211fa 100644
--- a/test/unit/cli/test_relinker.py
+++ b/test/unit/cli/test_relinker.py
@@ -11,7 +11,6 @@
 # See the License for the specific language governing permissions and
 # limitations under the License.
 
-import binascii
 import errno
 import fcntl
 import json
@@ -23,7 +22,6 @@ import mock
 import os
 import pickle
 import shutil
-import struct
 import tempfile
 import unittest
 import uuid
@@ -78,9 +76,8 @@ class TestRelinker(unittest.TestCase):
             container = 'c'
             obj = 'o-' + str(uuid.uuid4())
             self._hash = utils.hash_path(account, container, obj)
-            digest = binascii.unhexlify(self._hash)
-            self.part = struct.unpack_from('>I', digest)[0] >> 24
-            self.next_part = struct.unpack_from('>I', digest)[0] >> 23
+            self.part = utils.get_partition_for_hash(self._hash, 8)
+            self.next_part = utils.get_partition_for_hash(self._hash, 9)
             self.obj_path = os.path.join(os.path.sep, account, container, obj)
             # There's 1/512 chance that both old and new parts will be 0;
             # that's not a terribly interesting case, as there's nothing to do
diff --git a/test/unit/obj/test_diskfile.py b/test/unit/obj/test_diskfile.py
index d4ce1661be..d9a8788a3c 100644
--- a/test/unit/obj/test_diskfile.py
+++ b/test/unit/obj/test_diskfile.py
@@ -29,7 +29,6 @@ import uuid
 import xattr
 import re
 import six
-import struct
 from collections import defaultdict
 from random import shuffle, randint
 from shutil import rmtree
@@ -4790,9 +4789,8 @@ class DiskFileMixin(BaseDiskFileTestMixin):
         # DiskFile: first cleanup the current directory, but also cleanup the
         # previous old directory
         for policy in POLICIES:
-            digest = utils.hash_path(
-                'a', 'c', 'o_%s' % policy, raw_digest=True)
-            partition = struct.unpack_from('>I', digest)[0] >> (32 - 10)
+            hash_path = utils.hash_path('a', 'c', 'o_%s' % policy)
+            partition = utils.get_partition_for_hash(hash_path, 10)
             timestamp = Timestamp(time()).internal
             df_dir = self._create_diskfile_dir(
                 timestamp, policy, partition=partition, next_part_power=10)
@@ -4812,9 +4810,8 @@ class DiskFileMixin(BaseDiskFileTestMixin):
     def test_killed_before_cleanup(self, mock_cleanup):
         for policy in POLICIES:
             timestamp = Timestamp(time()).internal
-            digest = utils.hash_path(
-                'a', 'c', 'o_%s' % policy, raw_digest=True)
-            partition = struct.unpack_from('>I', digest)[0] >> (32 - 10)
+            hash_path = utils.hash_path('a', 'c', 'o_%s' % policy)
+            partition = utils.get_partition_for_hash(hash_path, 10)
             df_dir = self._create_diskfile_dir(timestamp, policy,
                                                partition=partition,
                                                next_part_power=11,