mirror of
https://github.com/python/cpython.git
synced 2025-10-25 10:44:55 +00:00
70 lines
2.2 KiB
Python
70 lines
2.2 KiB
Python
"""
|
|
Test suite to check compilance with PEP 247, the standard API
|
|
for hashing algorithms
|
|
"""
|
|
|
|
import hmac
|
|
import unittest
|
|
from hashlib import md5, sha1, sha224, sha256, sha384, sha512
|
|
from test import support
|
|
|
|
class Pep247Test(unittest.TestCase):
|
|
|
|
def check_module(self, module, key=None):
|
|
self.assertTrue(hasattr(module, 'digest_size'))
|
|
self.assertTrue(module.digest_size is None or module.digest_size > 0)
|
|
self.check_object(module.new, module.digest_size, key)
|
|
|
|
def check_object(self, cls, digest_size, key, digestmod=None):
|
|
if key is not None:
|
|
if digestmod is None:
|
|
digestmod = md5
|
|
obj1 = cls(key, digestmod=digestmod)
|
|
obj2 = cls(key, b'string', digestmod=digestmod)
|
|
h1 = cls(key, b'string', digestmod=digestmod).digest()
|
|
obj3 = cls(key, digestmod=digestmod)
|
|
obj3.update(b'string')
|
|
h2 = obj3.digest()
|
|
else:
|
|
obj1 = cls()
|
|
obj2 = cls(b'string')
|
|
h1 = cls(b'string').digest()
|
|
obj3 = cls()
|
|
obj3.update(b'string')
|
|
h2 = obj3.digest()
|
|
self.assertEqual(h1, h2)
|
|
self.assertTrue(hasattr(obj1, 'digest_size'))
|
|
|
|
if digest_size is not None:
|
|
self.assertEqual(obj1.digest_size, digest_size)
|
|
|
|
self.assertEqual(obj1.digest_size, len(h1))
|
|
obj1.update(b'string')
|
|
obj_copy = obj1.copy()
|
|
self.assertEqual(obj1.digest(), obj_copy.digest())
|
|
self.assertEqual(obj1.hexdigest(), obj_copy.hexdigest())
|
|
|
|
digest, hexdigest = obj1.digest(), obj1.hexdigest()
|
|
hd2 = ""
|
|
for byte in digest:
|
|
hd2 += '%02x' % byte
|
|
self.assertEqual(hd2, hexdigest)
|
|
|
|
def test_md5(self):
|
|
self.check_object(md5, None, None)
|
|
|
|
def test_sha(self):
|
|
self.check_object(sha1, None, None)
|
|
self.check_object(sha224, None, None)
|
|
self.check_object(sha256, None, None)
|
|
self.check_object(sha384, None, None)
|
|
self.check_object(sha512, None, None)
|
|
|
|
def test_hmac(self):
|
|
self.check_module(hmac, key=b'abc')
|
|
|
|
def test_main():
|
|
support.run_unittest(Pep247Test)
|
|
|
|
if __name__ == '__main__':
|
|
test_main()
|