Add a test to make sure zlib.crc32 and binascii.crc32 return the same thing.
Fix a buglet in binascii.crc32, the second optional argument could previously
have a signedness mismatch with the C variable its going into.
diff --git a/Lib/test/test_zlib.py b/Lib/test/test_zlib.py
index 7c7ef26..9f0fe18 100644
--- a/Lib/test/test_zlib.py
+++ b/Lib/test/test_zlib.py
@@ -1,6 +1,7 @@
import unittest
from test import test_support
import zlib
+import binascii
import random
@@ -47,6 +48,11 @@
self.assertEqual(zlib.adler32(foo+foo), -721416943)
self.assertEqual(zlib.adler32('spam'), 72286642)
+ def test_same_as_binascii_crc32(self):
+ foo = 'abcdefghijklmnop'
+ self.assertEqual(binascii.crc32(foo), zlib.crc32(foo))
+ self.assertEqual(binascii.crc32('spam'), zlib.crc32('spam'))
+
class ExceptionTestCase(unittest.TestCase):