| """ |
| 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.assertTrue(hasattr(module, 'digest_size')) |
| self.assertTrue(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.assertEqual(h1, h2) |
| |
| self.assertTrue(hasattr(obj1, 'digest_size')) |
| |
| if not module.digest_size is None: |
| self.assertEqual(obj1.digest_size, module.digest_size) |
| |
| self.assertEqual(obj1.digest_size, len(h1)) |
| obj1.update('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' % ord(byte) |
| self.assertEqual(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() |
