| import binascii |
| import functools |
| import hmac |
| import hashlib |
| import unittest |
| import unittest.mock |
| import warnings |
| |
| from test.support import hashlib_helper, check_disallow_instantiation |
| |
| from _operator import _compare_digest as operator_compare_digest |
| |
| try: |
| import _hashlib as _hashopenssl |
| from _hashlib import HMAC as C_HMAC |
| from _hashlib import hmac_new as c_hmac_new |
| from _hashlib import compare_digest as openssl_compare_digest |
| except ImportError: |
| _hashopenssl = None |
| C_HMAC = None |
| c_hmac_new = None |
| openssl_compare_digest = None |
| |
| try: |
| import _sha256 as sha256_module |
| except ImportError: |
| sha256_module = None |
| |
| |
| def ignore_warning(func): |
| @functools.wraps(func) |
| def wrapper(*args, **kwargs): |
| with warnings.catch_warnings(): |
| warnings.filterwarnings("ignore", |
| category=DeprecationWarning) |
| return func(*args, **kwargs) |
| return wrapper |
| |
| |
| class TestVectorsTestCase(unittest.TestCase): |
| |
| def assert_hmac_internals( |
| self, h, digest, hashname, digest_size, block_size |
| ): |
| self.assertEqual(h.hexdigest().upper(), digest.upper()) |
| self.assertEqual(h.digest(), binascii.unhexlify(digest)) |
| self.assertEqual(h.name, f"hmac-{hashname}") |
| self.assertEqual(h.digest_size, digest_size) |
| self.assertEqual(h.block_size, block_size) |
| |
| def assert_hmac( |
| self, key, data, digest, hashfunc, hashname, digest_size, block_size |
| ): |
| h = hmac.HMAC(key, data, digestmod=hashfunc) |
| self.assert_hmac_internals( |
| h, digest, hashname, digest_size, block_size |
| ) |
| |
| h = hmac.HMAC(key, data, digestmod=hashname) |
| self.assert_hmac_internals( |
| h, digest, hashname, digest_size, block_size |
| ) |
| |
| h = hmac.HMAC(key, digestmod=hashname) |
| h2 = h.copy() |
| h2.update(b"test update") |
| h.update(data) |
| self.assertEqual(h.hexdigest().upper(), digest.upper()) |
| |
| h = hmac.new(key, data, digestmod=hashname) |
| self.assert_hmac_internals( |
| h, digest, hashname, digest_size, block_size |
| ) |
| |
| h = hmac.new(key, None, digestmod=hashname) |
| h.update(data) |
| self.assertEqual(h.hexdigest().upper(), digest.upper()) |
| |
| h = hmac.new(key, digestmod=hashname) |
| h.update(data) |
| self.assertEqual(h.hexdigest().upper(), digest.upper()) |
| |
| h = hmac.new(key, data, digestmod=hashfunc) |
| self.assertEqual(h.hexdigest().upper(), digest.upper()) |
| |
| self.assertEqual( |
| hmac.digest(key, data, digest=hashname), |
| binascii.unhexlify(digest) |
| ) |
| self.assertEqual( |
| hmac.digest(key, data, digest=hashfunc), |
| binascii.unhexlify(digest) |
| ) |
| |
| h = hmac.HMAC.__new__(hmac.HMAC) |
| h._init_old(key, data, digestmod=hashname) |
| self.assert_hmac_internals( |
| h, digest, hashname, digest_size, block_size |
| ) |
| |
| if c_hmac_new is not None: |
| h = c_hmac_new(key, data, digestmod=hashname) |
| self.assert_hmac_internals( |
| h, digest, hashname, digest_size, block_size |
| ) |
| |
| h = c_hmac_new(key, digestmod=hashname) |
| h2 = h.copy() |
| h2.update(b"test update") |
| h.update(data) |
| self.assertEqual(h.hexdigest().upper(), digest.upper()) |
| |
| func = getattr(_hashopenssl, f"openssl_{hashname}") |
| h = c_hmac_new(key, data, digestmod=func) |
| self.assert_hmac_internals( |
| h, digest, hashname, digest_size, block_size |
| ) |
| |
| h = hmac.HMAC.__new__(hmac.HMAC) |
| h._init_hmac(key, data, digestmod=hashname) |
| self.assert_hmac_internals( |
| h, digest, hashname, digest_size, block_size |
| ) |
| |
| @hashlib_helper.requires_hashdigest('md5', openssl=True) |
| def test_md5_vectors(self): |
| # Test the HMAC module against test vectors from the RFC. |
| |
| def md5test(key, data, digest): |
| self.assert_hmac( |
| key, data, digest, |
| hashfunc=hashlib.md5, |
| hashname="md5", |
| digest_size=16, |
| block_size=64 |
| ) |
| |
| md5test(b"\x0b" * 16, |
| b"Hi There", |
| "9294727A3638BB1C13F48EF8158BFC9D") |
| |
| md5test(b"Jefe", |
| b"what do ya want for nothing?", |
| "750c783e6ab0b503eaa86e310a5db738") |
| |
| md5test(b"\xaa" * 16, |
| b"\xdd" * 50, |
| "56be34521d144c88dbb8c733f0e8b3f6") |
| |
| md5test(bytes(range(1, 26)), |
| b"\xcd" * 50, |
| "697eaf0aca3a3aea3a75164746ffaa79") |
| |
| md5test(b"\x0C" * 16, |
| b"Test With Truncation", |
| "56461ef2342edc00f9bab995690efd4c") |
| |
| md5test(b"\xaa" * 80, |
| b"Test Using Larger Than Block-Size Key - Hash Key First", |
| "6b1ab7fe4bd7bf8f0b62e6ce61b9d0cd") |
| |
| md5test(b"\xaa" * 80, |
| (b"Test Using Larger Than Block-Size Key " |
| b"and Larger Than One Block-Size Data"), |
| "6f630fad67cda0ee1fb1f562db3aa53e") |
| |
| @hashlib_helper.requires_hashdigest('sha1', openssl=True) |
| def test_sha_vectors(self): |
| def shatest(key, data, digest): |
| self.assert_hmac( |
| key, data, digest, |
| hashfunc=hashlib.sha1, |
| hashname="sha1", |
| digest_size=20, |
| block_size=64 |
| ) |
| |
| shatest(b"\x0b" * 20, |
| b"Hi There", |
| "b617318655057264e28bc0b6fb378c8ef146be00") |
| |
| shatest(b"Jefe", |
| b"what do ya want for nothing?", |
| "effcdf6ae5eb2fa2d27416d5f184df9c259a7c79") |
| |
| shatest(b"\xAA" * 20, |
| b"\xDD" * 50, |
| "125d7342b9ac11cd91a39af48aa17b4f63f175d3") |
| |
| shatest(bytes(range(1, 26)), |
| b"\xCD" * 50, |
| "4c9007f4026250c6bc8414f9bf50c86c2d7235da") |
| |
| shatest(b"\x0C" * 20, |
| b"Test With Truncation", |
| "4c1a03424b55e07fe7f27be1d58bb9324a9a5a04") |
| |
| shatest(b"\xAA" * 80, |
| b"Test Using Larger Than Block-Size Key - Hash Key First", |
| "aa4ae5e15272d00e95705637ce8a3b55ed402112") |
| |
| shatest(b"\xAA" * 80, |
| (b"Test Using Larger Than Block-Size Key " |
| b"and Larger Than One Block-Size Data"), |
| "e8e99d0f45237d786d6bbaa7965c7808bbff1a91") |
| |
| def _rfc4231_test_cases(self, hashfunc, hash_name, digest_size, block_size): |
| def hmactest(key, data, hexdigests): |
| digest = hexdigests[hashfunc] |
| |
| self.assert_hmac( |
| key, data, digest, |
| hashfunc=hashfunc, |
| hashname=hash_name, |
| digest_size=digest_size, |
| block_size=block_size |
| ) |
| |
| # 4.2. Test Case 1 |
| hmactest(key = b'\x0b'*20, |
| data = b'Hi There', |
| hexdigests = { |
| hashlib.sha224: '896fb1128abbdf196832107cd49df33f' |
| '47b4b1169912ba4f53684b22', |
| hashlib.sha256: 'b0344c61d8db38535ca8afceaf0bf12b' |
| '881dc200c9833da726e9376c2e32cff7', |
| hashlib.sha384: 'afd03944d84895626b0825f4ab46907f' |
| '15f9dadbe4101ec682aa034c7cebc59c' |
| 'faea9ea9076ede7f4af152e8b2fa9cb6', |
| hashlib.sha512: '87aa7cdea5ef619d4ff0b4241a1d6cb0' |
| '2379f4e2ce4ec2787ad0b30545e17cde' |
| 'daa833b7d6b8a702038b274eaea3f4e4' |
| 'be9d914eeb61f1702e696c203a126854', |
| }) |
| |
| # 4.3. Test Case 2 |
| hmactest(key = b'Jefe', |
| data = b'what do ya want for nothing?', |
| hexdigests = { |
| hashlib.sha224: 'a30e01098bc6dbbf45690f3a7e9e6d0f' |
| '8bbea2a39e6148008fd05e44', |
| hashlib.sha256: '5bdcc146bf60754e6a042426089575c7' |
| '5a003f089d2739839dec58b964ec3843', |
| hashlib.sha384: 'af45d2e376484031617f78d2b58a6b1b' |
| '9c7ef464f5a01b47e42ec3736322445e' |
| '8e2240ca5e69e2c78b3239ecfab21649', |
| hashlib.sha512: '164b7a7bfcf819e2e395fbe73b56e0a3' |
| '87bd64222e831fd610270cd7ea250554' |
| '9758bf75c05a994a6d034f65f8f0e6fd' |
| 'caeab1a34d4a6b4b636e070a38bce737', |
| }) |
| |
| # 4.4. Test Case 3 |
| hmactest(key = b'\xaa'*20, |
| data = b'\xdd'*50, |
| hexdigests = { |
| hashlib.sha224: '7fb3cb3588c6c1f6ffa9694d7d6ad264' |
| '9365b0c1f65d69d1ec8333ea', |
| hashlib.sha256: '773ea91e36800e46854db8ebd09181a7' |
| '2959098b3ef8c122d9635514ced565fe', |
| hashlib.sha384: '88062608d3e6ad8a0aa2ace014c8a86f' |
| '0aa635d947ac9febe83ef4e55966144b' |
| '2a5ab39dc13814b94e3ab6e101a34f27', |
| hashlib.sha512: 'fa73b0089d56a284efb0f0756c890be9' |
| 'b1b5dbdd8ee81a3655f83e33b2279d39' |
| 'bf3e848279a722c806b485a47e67c807' |
| 'b946a337bee8942674278859e13292fb', |
| }) |
| |
| # 4.5. Test Case 4 |
| hmactest(key = bytes(x for x in range(0x01, 0x19+1)), |
| data = b'\xcd'*50, |
| hexdigests = { |
| hashlib.sha224: '6c11506874013cac6a2abc1bb382627c' |
| 'ec6a90d86efc012de7afec5a', |
| hashlib.sha256: '82558a389a443c0ea4cc819899f2083a' |
| '85f0faa3e578f8077a2e3ff46729665b', |
| hashlib.sha384: '3e8a69b7783c25851933ab6290af6ca7' |
| '7a9981480850009cc5577c6e1f573b4e' |
| '6801dd23c4a7d679ccf8a386c674cffb', |
| hashlib.sha512: 'b0ba465637458c6990e5a8c5f61d4af7' |
| 'e576d97ff94b872de76f8050361ee3db' |
| 'a91ca5c11aa25eb4d679275cc5788063' |
| 'a5f19741120c4f2de2adebeb10a298dd', |
| }) |
| |
| # 4.7. Test Case 6 |
| hmactest(key = b'\xaa'*131, |
| data = b'Test Using Larger Than Block-Siz' |
| b'e Key - Hash Key First', |
| hexdigests = { |
| hashlib.sha224: '95e9a0db962095adaebe9b2d6f0dbce2' |
| 'd499f112f2d2b7273fa6870e', |
| hashlib.sha256: '60e431591ee0b67f0d8a26aacbf5b77f' |
| '8e0bc6213728c5140546040f0ee37f54', |
| hashlib.sha384: '4ece084485813e9088d2c63a041bc5b4' |
| '4f9ef1012a2b588f3cd11f05033ac4c6' |
| '0c2ef6ab4030fe8296248df163f44952', |
| hashlib.sha512: '80b24263c7c1a3ebb71493c1dd7be8b4' |
| '9b46d1f41b4aeec1121b013783f8f352' |
| '6b56d037e05f2598bd0fd2215d6a1e52' |
| '95e64f73f63f0aec8b915a985d786598', |
| }) |
| |
| # 4.8. Test Case 7 |
| hmactest(key = b'\xaa'*131, |
| data = b'This is a test using a larger th' |
| b'an block-size key and a larger t' |
| b'han block-size data. The key nee' |
| b'ds to be hashed before being use' |
| b'd by the HMAC algorithm.', |
| hexdigests = { |
| hashlib.sha224: '3a854166ac5d9f023f54d517d0b39dbd' |
| '946770db9c2b95c9f6f565d1', |
| hashlib.sha256: '9b09ffa71b942fcb27635fbcd5b0e944' |
| 'bfdc63644f0713938a7f51535c3a35e2', |
| hashlib.sha384: '6617178e941f020d351e2f254e8fd32c' |
| '602420feb0b8fb9adccebb82461e99c5' |
| 'a678cc31e799176d3860e6110c46523e', |
| hashlib.sha512: 'e37b6a775dc87dbaa4dfa9f96e5e3ffd' |
| 'debd71f8867289865df5a32d20cdc944' |
| 'b6022cac3c4982b10d5eeb55c3e4de15' |
| '134676fb6de0446065c97440fa8c6a58', |
| }) |
| |
| @hashlib_helper.requires_hashdigest('sha224', openssl=True) |
| def test_sha224_rfc4231(self): |
| self._rfc4231_test_cases(hashlib.sha224, 'sha224', 28, 64) |
| |
| @hashlib_helper.requires_hashdigest('sha256', openssl=True) |
| def test_sha256_rfc4231(self): |
| self._rfc4231_test_cases(hashlib.sha256, 'sha256', 32, 64) |
| |
| @hashlib_helper.requires_hashdigest('sha384', openssl=True) |
| def test_sha384_rfc4231(self): |
| self._rfc4231_test_cases(hashlib.sha384, 'sha384', 48, 128) |
| |
| @hashlib_helper.requires_hashdigest('sha512', openssl=True) |
| def test_sha512_rfc4231(self): |
| self._rfc4231_test_cases(hashlib.sha512, 'sha512', 64, 128) |
| |
| @hashlib_helper.requires_hashdigest('sha256') |
| def test_legacy_block_size_warnings(self): |
| class MockCrazyHash(object): |
| """Ain't no block_size attribute here.""" |
| def __init__(self, *args): |
| self._x = hashlib.sha256(*args) |
| self.digest_size = self._x.digest_size |
| def update(self, v): |
| self._x.update(v) |
| def digest(self): |
| return self._x.digest() |
| |
| with warnings.catch_warnings(): |
| warnings.simplefilter('error', RuntimeWarning) |
| with self.assertRaises(RuntimeWarning): |
| hmac.HMAC(b'a', b'b', digestmod=MockCrazyHash) |
| self.fail('Expected warning about missing block_size') |
| |
| MockCrazyHash.block_size = 1 |
| with self.assertRaises(RuntimeWarning): |
| hmac.HMAC(b'a', b'b', digestmod=MockCrazyHash) |
| self.fail('Expected warning about small block_size') |
| |
| def test_with_digestmod_no_default(self): |
| """The digestmod parameter is required as of Python 3.8.""" |
| with self.assertRaisesRegex(TypeError, r'required.*digestmod'): |
| key = b"\x0b" * 16 |
| data = b"Hi There" |
| hmac.HMAC(key, data, digestmod=None) |
| with self.assertRaisesRegex(TypeError, r'required.*digestmod'): |
| hmac.new(key, data) |
| with self.assertRaisesRegex(TypeError, r'required.*digestmod'): |
| hmac.HMAC(key, msg=data, digestmod='') |
| |
| def test_with_fallback(self): |
| cache = getattr(hashlib, '__builtin_constructor_cache') |
| try: |
| cache['foo'] = hashlib.sha256 |
| hexdigest = hmac.digest(b'key', b'message', 'foo').hex() |
| expected = '6e9ef29b75fffc5b7abae527d58fdadb2fe42e7219011976917343065f58ed4a' |
| self.assertEqual(hexdigest, expected) |
| finally: |
| cache.pop('foo') |
| |
| |
| class ConstructorTestCase(unittest.TestCase): |
| |
| expected = ( |
| "6c845b47f52b3b47f6590c502db7825aad757bf4fadc8fa972f7cd2e76a5bdeb" |
| ) |
| |
| @hashlib_helper.requires_hashdigest('sha256') |
| def test_normal(self): |
| # Standard constructor call. |
| try: |
| hmac.HMAC(b"key", digestmod='sha256') |
| except Exception: |
| self.fail("Standard constructor call raised exception.") |
| |
| @hashlib_helper.requires_hashdigest('sha256') |
| def test_with_str_key(self): |
| # Pass a key of type str, which is an error, because it expects a key |
| # of type bytes |
| with self.assertRaises(TypeError): |
| h = hmac.HMAC("key", digestmod='sha256') |
| |
| @hashlib_helper.requires_hashdigest('sha256') |
| def test_dot_new_with_str_key(self): |
| # Pass a key of type str, which is an error, because it expects a key |
| # of type bytes |
| with self.assertRaises(TypeError): |
| h = hmac.new("key", digestmod='sha256') |
| |
| @hashlib_helper.requires_hashdigest('sha256') |
| def test_withtext(self): |
| # Constructor call with text. |
| try: |
| h = hmac.HMAC(b"key", b"hash this!", digestmod='sha256') |
| except Exception: |
| self.fail("Constructor call with text argument raised exception.") |
| self.assertEqual(h.hexdigest(), self.expected) |
| |
| @hashlib_helper.requires_hashdigest('sha256') |
| def test_with_bytearray(self): |
| try: |
| h = hmac.HMAC(bytearray(b"key"), bytearray(b"hash this!"), |
| digestmod="sha256") |
| except Exception: |
| self.fail("Constructor call with bytearray arguments raised exception.") |
| self.assertEqual(h.hexdigest(), self.expected) |
| |
| @hashlib_helper.requires_hashdigest('sha256') |
| def test_with_memoryview_msg(self): |
| try: |
| h = hmac.HMAC(b"key", memoryview(b"hash this!"), digestmod="sha256") |
| except Exception: |
| self.fail("Constructor call with memoryview msg raised exception.") |
| self.assertEqual(h.hexdigest(), self.expected) |
| |
| @hashlib_helper.requires_hashdigest('sha256') |
| def test_withmodule(self): |
| # Constructor call with text and digest module. |
| try: |
| h = hmac.HMAC(b"key", b"", hashlib.sha256) |
| except Exception: |
| self.fail("Constructor call with hashlib.sha256 raised exception.") |
| |
| @unittest.skipUnless(C_HMAC is not None, 'need _hashlib') |
| def test_internal_types(self): |
| # internal types like _hashlib.C_HMAC are not constructable |
| check_disallow_instantiation(self, C_HMAC) |
| with self.assertRaisesRegex(TypeError, "immutable type"): |
| C_HMAC.value = None |
| |
| @unittest.skipUnless(sha256_module is not None, 'need _sha256') |
| def test_with_sha256_module(self): |
| h = hmac.HMAC(b"key", b"hash this!", digestmod=sha256_module.sha256) |
| self.assertEqual(h.hexdigest(), self.expected) |
| self.assertEqual(h.name, "hmac-sha256") |
| |
| digest = hmac.digest(b"key", b"hash this!", sha256_module.sha256) |
| self.assertEqual(digest, binascii.unhexlify(self.expected)) |
| |
| |
| class SanityTestCase(unittest.TestCase): |
| |
| @hashlib_helper.requires_hashdigest('sha256') |
| def test_exercise_all_methods(self): |
| # Exercising all methods once. |
| # This must not raise any exceptions |
| try: |
| h = hmac.HMAC(b"my secret key", digestmod="sha256") |
| h.update(b"compute the hash of this text!") |
| h.digest() |
| h.hexdigest() |
| h.copy() |
| except Exception: |
| self.fail("Exception raised during normal usage of HMAC class.") |
| |
| |
| class CopyTestCase(unittest.TestCase): |
| |
| @hashlib_helper.requires_hashdigest('sha256') |
| def test_attributes_old(self): |
| # Testing if attributes are of same type. |
| h1 = hmac.HMAC.__new__(hmac.HMAC) |
| h1._init_old(b"key", b"msg", digestmod="sha256") |
| h2 = h1.copy() |
| self.assertEqual(type(h1._inner), type(h2._inner), |
| "Types of inner don't match.") |
| self.assertEqual(type(h1._outer), type(h2._outer), |
| "Types of outer don't match.") |
| |
| @hashlib_helper.requires_hashdigest('sha256') |
| def test_realcopy_old(self): |
| # Testing if the copy method created a real copy. |
| h1 = hmac.HMAC.__new__(hmac.HMAC) |
| h1._init_old(b"key", b"msg", digestmod="sha256") |
| h2 = h1.copy() |
| # Using id() in case somebody has overridden __eq__/__ne__. |
| self.assertTrue(id(h1) != id(h2), "No real copy of the HMAC instance.") |
| self.assertTrue(id(h1._inner) != id(h2._inner), |
| "No real copy of the attribute 'inner'.") |
| self.assertTrue(id(h1._outer) != id(h2._outer), |
| "No real copy of the attribute 'outer'.") |
| self.assertIs(h1._hmac, None) |
| |
| @unittest.skipIf(_hashopenssl is None, "test requires _hashopenssl") |
| @hashlib_helper.requires_hashdigest('sha256') |
| def test_realcopy_hmac(self): |
| h1 = hmac.HMAC.__new__(hmac.HMAC) |
| h1._init_hmac(b"key", b"msg", digestmod="sha256") |
| h2 = h1.copy() |
| self.assertTrue(id(h1._hmac) != id(h2._hmac)) |
| |
| @hashlib_helper.requires_hashdigest('sha256') |
| def test_equality(self): |
| # Testing if the copy has the same digests. |
| h1 = hmac.HMAC(b"key", digestmod="sha256") |
| h1.update(b"some random text") |
| h2 = h1.copy() |
| self.assertEqual(h1.digest(), h2.digest(), |
| "Digest of copy doesn't match original digest.") |
| self.assertEqual(h1.hexdigest(), h2.hexdigest(), |
| "Hexdigest of copy doesn't match original hexdigest.") |
| |
| @hashlib_helper.requires_hashdigest('sha256') |
| def test_equality_new(self): |
| # Testing if the copy has the same digests with hmac.new(). |
| h1 = hmac.new(b"key", digestmod="sha256") |
| h1.update(b"some random text") |
| h2 = h1.copy() |
| self.assertTrue( |
| id(h1) != id(h2), "No real copy of the HMAC instance." |
| ) |
| self.assertEqual(h1.digest(), h2.digest(), |
| "Digest of copy doesn't match original digest.") |
| self.assertEqual(h1.hexdigest(), h2.hexdigest(), |
| "Hexdigest of copy doesn't match original hexdigest.") |
| |
| |
| class CompareDigestTestCase(unittest.TestCase): |
| |
| def test_hmac_compare_digest(self): |
| self._test_compare_digest(hmac.compare_digest) |
| if openssl_compare_digest is not None: |
| self.assertIs(hmac.compare_digest, openssl_compare_digest) |
| else: |
| self.assertIs(hmac.compare_digest, operator_compare_digest) |
| |
| def test_operator_compare_digest(self): |
| self._test_compare_digest(operator_compare_digest) |
| |
| @unittest.skipIf(openssl_compare_digest is None, "test requires _hashlib") |
| def test_openssl_compare_digest(self): |
| self._test_compare_digest(openssl_compare_digest) |
| |
| def _test_compare_digest(self, compare_digest): |
| # Testing input type exception handling |
| a, b = 100, 200 |
| self.assertRaises(TypeError, compare_digest, a, b) |
| a, b = 100, b"foobar" |
| self.assertRaises(TypeError, compare_digest, a, b) |
| a, b = b"foobar", 200 |
| self.assertRaises(TypeError, compare_digest, a, b) |
| a, b = "foobar", b"foobar" |
| self.assertRaises(TypeError, compare_digest, a, b) |
| a, b = b"foobar", "foobar" |
| self.assertRaises(TypeError, compare_digest, a, b) |
| |
| # Testing bytes of different lengths |
| a, b = b"foobar", b"foo" |
| self.assertFalse(compare_digest(a, b)) |
| a, b = b"\xde\xad\xbe\xef", b"\xde\xad" |
| self.assertFalse(compare_digest(a, b)) |
| |
| # Testing bytes of same lengths, different values |
| a, b = b"foobar", b"foobaz" |
| self.assertFalse(compare_digest(a, b)) |
| a, b = b"\xde\xad\xbe\xef", b"\xab\xad\x1d\xea" |
| self.assertFalse(compare_digest(a, b)) |
| |
| # Testing bytes of same lengths, same values |
| a, b = b"foobar", b"foobar" |
| self.assertTrue(compare_digest(a, b)) |
| a, b = b"\xde\xad\xbe\xef", b"\xde\xad\xbe\xef" |
| self.assertTrue(compare_digest(a, b)) |
| |
| # Testing bytearrays of same lengths, same values |
| a, b = bytearray(b"foobar"), bytearray(b"foobar") |
| self.assertTrue(compare_digest(a, b)) |
| |
| # Testing bytearrays of different lengths |
| a, b = bytearray(b"foobar"), bytearray(b"foo") |
| self.assertFalse(compare_digest(a, b)) |
| |
| # Testing bytearrays of same lengths, different values |
| a, b = bytearray(b"foobar"), bytearray(b"foobaz") |
| self.assertFalse(compare_digest(a, b)) |
| |
| # Testing byte and bytearray of same lengths, same values |
| a, b = bytearray(b"foobar"), b"foobar" |
| self.assertTrue(compare_digest(a, b)) |
| self.assertTrue(compare_digest(b, a)) |
| |
| # Testing byte bytearray of different lengths |
| a, b = bytearray(b"foobar"), b"foo" |
| self.assertFalse(compare_digest(a, b)) |
| self.assertFalse(compare_digest(b, a)) |
| |
| # Testing byte and bytearray of same lengths, different values |
| a, b = bytearray(b"foobar"), b"foobaz" |
| self.assertFalse(compare_digest(a, b)) |
| self.assertFalse(compare_digest(b, a)) |
| |
| # Testing str of same lengths |
| a, b = "foobar", "foobar" |
| self.assertTrue(compare_digest(a, b)) |
| |
| # Testing str of different lengths |
| a, b = "foo", "foobar" |
| self.assertFalse(compare_digest(a, b)) |
| |
| # Testing bytes of same lengths, different values |
| a, b = "foobar", "foobaz" |
| self.assertFalse(compare_digest(a, b)) |
| |
| # Testing error cases |
| a, b = "foobar", b"foobar" |
| self.assertRaises(TypeError, compare_digest, a, b) |
| a, b = b"foobar", "foobar" |
| self.assertRaises(TypeError, compare_digest, a, b) |
| a, b = b"foobar", 1 |
| self.assertRaises(TypeError, compare_digest, a, b) |
| a, b = 100, 200 |
| self.assertRaises(TypeError, compare_digest, a, b) |
| a, b = "fooä", "fooä" |
| self.assertRaises(TypeError, compare_digest, a, b) |
| |
| # subclasses are supported by ignore __eq__ |
| class mystr(str): |
| def __eq__(self, other): |
| return False |
| |
| a, b = mystr("foobar"), mystr("foobar") |
| self.assertTrue(compare_digest(a, b)) |
| a, b = mystr("foobar"), "foobar" |
| self.assertTrue(compare_digest(a, b)) |
| a, b = mystr("foobar"), mystr("foobaz") |
| self.assertFalse(compare_digest(a, b)) |
| |
| class mybytes(bytes): |
| def __eq__(self, other): |
| return False |
| |
| a, b = mybytes(b"foobar"), mybytes(b"foobar") |
| self.assertTrue(compare_digest(a, b)) |
| a, b = mybytes(b"foobar"), b"foobar" |
| self.assertTrue(compare_digest(a, b)) |
| a, b = mybytes(b"foobar"), mybytes(b"foobaz") |
| self.assertFalse(compare_digest(a, b)) |
| |
| |
| if __name__ == "__main__": |
| unittest.main() |
