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"""
Test suite to check compilance with PEP 247, the standard API
for hashing algorithms
"""
import warnings
warnings.filterwarnings('ignore', 'the md5 module is deprecated.*',
DeprecationWarning)
warnings.filterwarnings('ignore', 'the sha module is deprecated.*',
DeprecationWarning)
import hmac
import md5
import sha
import unittest
from test import test_support
class Pep247Test(unittest.TestCase):
def check_module(self, module, key=None):
self.assert_(hasattr(module, 'digest_size'))
self.assert_(module.digest_size is None or module.digest_size > 0)
if not key is None:
obj1 = module.new(key)
obj2 = module.new(key, 'string')
h1 = module.new(key, 'string').digest()
obj3 = module.new(key)
obj3.update('string')
h2 = obj3.digest()
else:
obj1 = module.new()
obj2 = module.new('string')
h1 = module.new('string').digest()
obj3 = module.new()
obj3.update('string')
h2 = obj3.digest()
self.assertEquals(h1, h2)
self.assert_(hasattr(obj1, 'digest_size'))
if not module.digest_size is None:
self.assertEquals(obj1.digest_size, module.digest_size)
self.assertEquals(obj1.digest_size, len(h1))
obj1.update('string')
obj_copy = obj1.copy()
self.assertEquals(obj1.digest(), obj_copy.digest())
self.assertEquals(obj1.hexdigest(), obj_copy.hexdigest())
digest, hexdigest = obj1.digest(), obj1.hexdigest()
hd2 = ""
for byte in digest:
hd2 += '%02x' % ord(byte)
self.assertEquals(hd2, hexdigest)
def test_md5(self):
self.check_module(md5)
def test_sha(self):
self.check_module(sha)
def test_hmac(self):
self.check_module(hmac, key='abc')
def test_main():
test_support.run_unittest(Pep247Test)
if __name__ == '__main__':
test_main()
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