1 files changed, 3 insertions, 4 deletions
diff --git a/tests/utils.py b/tests/utils.py
index ca3245b0..7e79830b 100644
--- a/tests/utils.py
+++ b/tests/utils.py
@@ -7,7 +7,6 @@ from __future__ import absolute_import, division, print_function
 import binascii
 import collections
 import json
-import math
 import os
 import re
 from contextlib import contextmanager
@@ -744,15 +743,15 @@ def load_x963_vectors(vector_data):
             vector["key_data_length"] = key_data_len
         elif line.startswith("Z"):
             vector["Z"] = line.split("=")[1].strip()
-            assert math.ceil(shared_secret_len / 8) * 2 == len(vector["Z"])
+            assert ((shared_secret_len + 7) // 8) * 2 == len(vector["Z"])
         elif line.startswith("SharedInfo"):
             if shared_info_len != 0:
                 vector["sharedinfo"] = line.split("=")[1].strip()
                 silen = len(vector["sharedinfo"])
-                assert math.ceil(shared_info_len / 8) * 2 == silen
+                assert ((shared_info_len + 7) // 8) * 2 == silen
         elif line.startswith("key_data"):
             vector["key_data"] = line.split("=")[1].strip()
-            assert math.ceil(key_data_len / 8) * 2 == len(vector["key_data"])
+            assert ((key_data_len + 7) // 8) * 2 == len(vector["key_data"])
             vectors.append(vector)
             vector = {}