test_hashlib.py 文件源码

def check(self, name, data, hexdigest):
        hexdigest = hexdigest.lower()
        constructors = self.constructors_to_test[name]
        # 2 is for hashlib.name(...) and hashlib.new(name, ...)
        self.assertGreaterEqual(len(constructors), 2)
        for hash_object_constructor in constructors:
            m = hash_object_constructor(data)
            computed = m.hexdigest()
            self.assertEqual(
                    computed, hexdigest,
                    "Hash algorithm %s constructed using %s returned hexdigest"
                    " %r for %d byte input data that should have hashed to %r."
                    % (name, hash_object_constructor,
                       computed, len(data), hexdigest))
            computed = m.digest()
            digest = bytes.fromhex(hexdigest)
            self.assertEqual(computed, digest)
            self.assertEqual(len(digest), m.digest_size)