#!/usr/bin/env python3 # test_translate_ciphers_names.py # # Copyright The Mbed TLS Contributors # SPDX-License-Identifier: Apache-2.0 # # Licensed under the Apache License, Version 2.0 (the "License"); you may # not use this file except in compliance with the License. # You may obtain a copy of the License at # # http://www.apache.org/licenses/LICENSE-2.0 # # Unless required by applicable law or agreed to in writing, software # distributed under the License is distributed on an "AS IS" BASIS, WITHOUT # WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. # See the License for the specific language governing permissions and # limitations under the License. # """ Test translate_ciphers.py by running every Mbed TLS ciphersuite name combination through the translate functions and comparing them to their correct GNUTLS or OpenSSL counterpart. """ import sys from translate_ciphers import translate_gnutls, translate_ossl def assert_equal(translate, original): """ Compare the translated ciphersuite name against the original On fail, print the mismatch on the screen to directly compare the differences """ try: assert translate == original except AssertionError: print("%s\n%s\n" %(translate, original)) sys.exit(1) def test_all_common(): """ Translate the Mbed TLS ciphersuite names to the common OpenSSL and GnuTLS ciphersuite names, and compare them with the true, expected corresponding OpenSSL and GnuTLS ciphersuite names """ ciphers = [ ("TLS-ECDHE-ECDSA-WITH-NULL-SHA", "+ECDHE-ECDSA:+NULL:+SHA1", "ECDHE-ECDSA-NULL-SHA"), ("TLS-ECDHE-ECDSA-WITH-3DES-EDE-CBC-SHA", "+ECDHE-ECDSA:+3DES-CBC:+SHA1", "ECDHE-ECDSA-DES-CBC3-SHA"), ("TLS-ECDHE-ECDSA-WITH-AES-128-CBC-SHA", "+ECDHE-ECDSA:+AES-128-CBC:+SHA1", "ECDHE-ECDSA-AES128-SHA"), ("TLS-ECDHE-ECDSA-WITH-AES-256-CBC-SHA", "+ECDHE-ECDSA:+AES-256-CBC:+SHA1", "ECDHE-ECDSA-AES256-SHA"), ("TLS-ECDHE-ECDSA-WITH-AES-128-CBC-SHA256", "+ECDHE-ECDSA:+AES-128-CBC:+SHA256", "ECDHE-ECDSA-AES128-SHA256"), ("TLS-ECDHE-ECDSA-WITH-AES-256-CBC-SHA384", "+ECDHE-ECDSA:+AES-256-CBC:+SHA384", "ECDHE-ECDSA-AES256-SHA384"), ("TLS-ECDHE-ECDSA-WITH-AES-128-GCM-SHA256", "+ECDHE-ECDSA:+AES-128-GCM:+AEAD", "ECDHE-ECDSA-AES128-GCM-SHA256"), ("TLS-ECDHE-ECDSA-WITH-AES-256-GCM-SHA384", "+ECDHE-ECDSA:+AES-256-GCM:+AEAD", "ECDHE-ECDSA-AES256-GCM-SHA384"), ("TLS-DHE-RSA-WITH-AES-128-CBC-SHA", "+DHE-RSA:+AES-128-CBC:+SHA1", "DHE-RSA-AES128-SHA"), ("TLS-DHE-RSA-WITH-AES-256-CBC-SHA", "+DHE-RSA:+AES-256-CBC:+SHA1", "DHE-RSA-AES256-SHA"), ("TLS-DHE-RSA-WITH-CAMELLIA-128-CBC-SHA", "+DHE-RSA:+CAMELLIA-128-CBC:+SHA1", "DHE-RSA-CAMELLIA128-SHA"), ("TLS-DHE-RSA-WITH-CAMELLIA-256-CBC-SHA", "+DHE-RSA:+CAMELLIA-256-CBC:+SHA1", "DHE-RSA-CAMELLIA256-SHA"), ("TLS-DHE-RSA-WITH-3DES-EDE-CBC-SHA", "+DHE-RSA:+3DES-CBC:+SHA1", "EDH-RSA-DES-CBC3-SHA"), ("TLS-RSA-WITH-AES-256-CBC-SHA", "+RSA:+AES-256-CBC:+SHA1", "AES256-SHA"), ("TLS-RSA-WITH-CAMELLIA-256-CBC-SHA", "+RSA:+CAMELLIA-256-CBC:+SHA1", "CAMELLIA256-SHA"), ("TLS-RSA-WITH-AES-128-CBC-SHA", "+RSA:+AES-128-CBC:+SHA1", "AES128-SHA"), ("TLS-RSA-WITH-CAMELLIA-128-CBC-SHA", "+RSA:+CAMELLIA-128-CBC:+SHA1", "CAMELLIA128-SHA"), ("TLS-RSA-WITH-3DES-EDE-CBC-SHA", "+RSA:+3DES-CBC:+SHA1", "DES-CBC3-SHA"), ("TLS-RSA-WITH-NULL-MD5", "+RSA:+NULL:+MD5", "NULL-MD5"), ("TLS-RSA-WITH-NULL-SHA", "+RSA:+NULL:+SHA1", "NULL-SHA"), ("TLS-ECDHE-RSA-WITH-AES-128-CBC-SHA", "+ECDHE-RSA:+AES-128-CBC:+SHA1", "ECDHE-RSA-AES128-SHA"), ("TLS-ECDHE-RSA-WITH-AES-256-CBC-SHA", "+ECDHE-RSA:+AES-256-CBC:+SHA1", "ECDHE-RSA-AES256-SHA"), ("TLS-ECDHE-RSA-WITH-3DES-EDE-CBC-SHA", "+ECDHE-RSA:+3DES-CBC:+SHA1", "ECDHE-RSA-DES-CBC3-SHA"), ("TLS-ECDHE-RSA-WITH-NULL-SHA", "+ECDHE-RSA:+NULL:+SHA1", "ECDHE-RSA-NULL-SHA"), ("TLS-RSA-WITH-AES-128-CBC-SHA256", "+RSA:+AES-128-CBC:+SHA256", "AES128-SHA256"), ("TLS-DHE-RSA-WITH-AES-128-CBC-SHA256", "+DHE-RSA:+AES-128-CBC:+SHA256", "DHE-RSA-AES128-SHA256"), ("TLS-RSA-WITH-AES-256-CBC-SHA256", "+RSA:+AES-256-CBC:+SHA256", "AES256-SHA256"), ("TLS-DHE-RSA-WITH-AES-256-CBC-SHA256", "+DHE-RSA:+AES-256-CBC:+SHA256", "DHE-RSA-AES256-SHA256"), ("TLS-ECDHE-RSA-WITH-AES-128-CBC-SHA256", "+ECDHE-RSA:+AES-128-CBC:+SHA256", "ECDHE-RSA-AES128-SHA256"), ("TLS-ECDHE-RSA-WITH-AES-256-CBC-SHA384", "+ECDHE-RSA:+AES-256-CBC:+SHA384", "ECDHE-RSA-AES256-SHA384"), ("TLS-RSA-WITH-AES-128-GCM-SHA256", "+RSA:+AES-128-GCM:+AEAD", "AES128-GCM-SHA256"), ("TLS-RSA-WITH-AES-256-GCM-SHA384", "+RSA:+AES-256-GCM:+AEAD", "AES256-GCM-SHA384"), ("TLS-DHE-RSA-WITH-AES-128-GCM-SHA256", "+DHE-RSA:+AES-128-GCM:+AEAD", "DHE-RSA-AES128-GCM-SHA256"), ("TLS-DHE-RSA-WITH-AES-256-GCM-SHA384", "+DHE-RSA:+AES-256-GCM:+AEAD", "DHE-RSA-AES256-GCM-SHA384"), ("TLS-ECDHE-RSA-WITH-AES-128-GCM-SHA256", "+ECDHE-RSA:+AES-128-GCM:+AEAD", "ECDHE-RSA-AES128-GCM-SHA256"), ("TLS-ECDHE-RSA-WITH-AES-256-GCM-SHA384", "+ECDHE-RSA:+AES-256-GCM:+AEAD", "ECDHE-RSA-AES256-GCM-SHA384"), ("TLS-PSK-WITH-3DES-EDE-CBC-SHA", "+PSK:+3DES-CBC:+SHA1", "PSK-3DES-EDE-CBC-SHA"), ("TLS-PSK-WITH-AES-128-CBC-SHA", "+PSK:+AES-128-CBC:+SHA1", "PSK-AES128-CBC-SHA"), ("TLS-PSK-WITH-AES-256-CBC-SHA", "+PSK:+AES-256-CBC:+SHA1", "PSK-AES256-CBC-SHA"), ("TLS-ECDH-ECDSA-WITH-NULL-SHA", None, "ECDH-ECDSA-NULL-SHA"), ("TLS-ECDH-ECDSA-WITH-3DES-EDE-CBC-SHA", None, "ECDH-ECDSA-DES-CBC3-SHA"), ("TLS-ECDH-ECDSA-WITH-AES-128-CBC-SHA", None, "ECDH-ECDSA-AES128-SHA"), ("TLS-ECDH-ECDSA-WITH-AES-256-CBC-SHA", None, "ECDH-ECDSA-AES256-SHA"), ("TLS-ECDH-ECDSA-WITH-AES-128-CBC-SHA256", None, "ECDH-ECDSA-AES128-SHA256"), ("TLS-ECDH-ECDSA-WITH-AES-256-CBC-SHA384", None, "ECDH-ECDSA-AES256-SHA384"), ("TLS-ECDH-ECDSA-WITH-AES-128-GCM-SHA256", None, "ECDH-ECDSA-AES128-GCM-SHA256"), ("TLS-ECDH-ECDSA-WITH-AES-256-GCM-SHA384", None, "ECDH-ECDSA-AES256-GCM-SHA384"), ("TLS-ECDHE-ECDSA-WITH-ARIA-256-GCM-SHA384", None, "ECDHE-ECDSA-ARIA256-GCM-SHA384"), ("TLS-ECDHE-ECDSA-WITH-ARIA-128-GCM-SHA256", None, "ECDHE-ECDSA-ARIA128-GCM-SHA256"), ("TLS-ECDHE-ECDSA-WITH-CHACHA20-POLY1305-SHA256", None, "ECDHE-ECDSA-CHACHA20-POLY1305"), ("TLS-RSA-WITH-DES-CBC-SHA", None, "DES-CBC-SHA"), ("TLS-DHE-RSA-WITH-DES-CBC-SHA", None, "EDH-RSA-DES-CBC-SHA"), ("TLS-ECDHE-RSA-WITH-ARIA-256-GCM-SHA384", None, "ECDHE-ARIA256-GCM-SHA384"), ("TLS-DHE-RSA-WITH-ARIA-256-GCM-SHA384", None, "DHE-RSA-ARIA256-GCM-SHA384"), ("TLS-RSA-WITH-ARIA-256-GCM-SHA384", None, "ARIA256-GCM-SHA384"), ("TLS-ECDHE-RSA-WITH-ARIA-128-GCM-SHA256", None, "ECDHE-ARIA128-GCM-SHA256"), ("TLS-DHE-RSA-WITH-ARIA-128-GCM-SHA256", None, "DHE-RSA-ARIA128-GCM-SHA256"), ("TLS-RSA-WITH-ARIA-128-GCM-SHA256", None, "ARIA128-GCM-SHA256"), ("TLS-DHE-RSA-WITH-CHACHA20-POLY1305-SHA256", None, "DHE-RSA-CHACHA20-POLY1305"), ("TLS-ECDHE-RSA-WITH-CHACHA20-POLY1305-SHA256", None, "ECDHE-RSA-CHACHA20-POLY1305"), ("TLS-DHE-PSK-WITH-ARIA-256-GCM-SHA384", None, "DHE-PSK-ARIA256-GCM-SHA384"), ("TLS-DHE-PSK-WITH-ARIA-128-GCM-SHA256", None, "DHE-PSK-ARIA128-GCM-SHA256"), ("TLS-PSK-WITH-ARIA-256-GCM-SHA384", None, "PSK-ARIA256-GCM-SHA384"), ("TLS-PSK-WITH-ARIA-128-GCM-SHA256", None, "PSK-ARIA128-GCM-SHA256"), ("TLS-PSK-WITH-CHACHA20-POLY1305-SHA256", None, "PSK-CHACHA20-POLY1305"), ("TLS-ECDHE-PSK-WITH-CHACHA20-POLY1305-SHA256", None, "ECDHE-PSK-CHACHA20-POLY1305"), ("TLS-DHE-PSK-WITH-CHACHA20-POLY1305-SHA256", None, "DHE-PSK-CHACHA20-POLY1305"), ("TLS-ECDHE-ECDSA-WITH-CAMELLIA-128-CBC-SHA256", "+ECDHE-ECDSA:+CAMELLIA-128-CBC:+SHA256", None), ("TLS-ECDHE-ECDSA-WITH-CAMELLIA-256-CBC-SHA384", "+ECDHE-ECDSA:+CAMELLIA-256-CBC:+SHA384", None), ("TLS-ECDHE-ECDSA-WITH-CAMELLIA-128-GCM-SHA256", "+ECDHE-ECDSA:+CAMELLIA-128-GCM:+AEAD", None), ("TLS-ECDHE-ECDSA-WITH-CAMELLIA-256-GCM-SHA384", "+ECDHE-ECDSA:+CAMELLIA-256-GCM:+AEAD", None), ("TLS-ECDHE-ECDSA-WITH-AES-128-CCM", "+ECDHE-ECDSA:+AES-128-CCM:+AEAD", None), ("TLS-ECDHE-ECDSA-WITH-AES-256-CCM", "+ECDHE-ECDSA:+AES-256-CCM:+AEAD", None), ("TLS-ECDHE-ECDSA-WITH-AES-128-CCM-8", "+ECDHE-ECDSA:+AES-128-CCM-8:+AEAD", None), ("TLS-ECDHE-ECDSA-WITH-AES-256-CCM-8", "+ECDHE-ECDSA:+AES-256-CCM-8:+AEAD", None), ("TLS-RSA-WITH-NULL-SHA256", "+RSA:+NULL:+SHA256", None), ("TLS-ECDHE-RSA-WITH-CAMELLIA-128-CBC-SHA256", "+ECDHE-RSA:+CAMELLIA-128-CBC:+SHA256", None), ("TLS-ECDHE-RSA-WITH-CAMELLIA-256-CBC-SHA384", "+ECDHE-RSA:+CAMELLIA-256-CBC:+SHA384", None), ("TLS-RSA-WITH-CAMELLIA-128-CBC-SHA256", "+RSA:+CAMELLIA-128-CBC:+SHA256", None), ("TLS-RSA-WITH-CAMELLIA-256-CBC-SHA256", "+RSA:+CAMELLIA-256-CBC:+SHA256", None), ("TLS-DHE-RSA-WITH-CAMELLIA-128-CBC-SHA256", "+DHE-RSA:+CAMELLIA-128-CBC:+SHA256", None), ("TLS-DHE-RSA-WITH-CAMELLIA-256-CBC-SHA256", "+DHE-RSA:+CAMELLIA-256-CBC:+SHA256", None), ("TLS-ECDHE-RSA-WITH-CAMELLIA-128-GCM-SHA256", "+ECDHE-RSA:+CAMELLIA-128-GCM:+AEAD", None), ("TLS-ECDHE-RSA-WITH-CAMELLIA-256-GCM-SHA384", "+ECDHE-RSA:+CAMELLIA-256-GCM:+AEAD", None), ("TLS-DHE-RSA-WITH-CAMELLIA-128-GCM-SHA256", "+DHE-RSA:+CAMELLIA-128-GCM:+AEAD", None), ("TLS-DHE-RSA-WITH-CAMELLIA-256-GCM-SHA384", "+DHE-RSA:+CAMELLIA-256-GCM:+AEAD", None), ("TLS-RSA-WITH-CAMELLIA-128-GCM-SHA256", "+RSA:+CAMELLIA-128-GCM:+AEAD", None), ("TLS-RSA-WITH-CAMELLIA-256-GCM-SHA384", "+RSA:+CAMELLIA-256-GCM:+AEAD", None), ("TLS-RSA-WITH-AES-128-CCM", "+RSA:+AES-128-CCM:+AEAD", None), ("TLS-RSA-WITH-AES-256-CCM", "+RSA:+AES-256-CCM:+AEAD", None), ("TLS-DHE-RSA-WITH-AES-128-CCM", "+DHE-RSA:+AES-128-CCM:+AEAD", None), ("TLS-DHE-RSA-WITH-AES-256-CCM", "+DHE-RSA:+AES-256-CCM:+AEAD", None), ("TLS-RSA-WITH-AES-128-CCM-8", "+RSA:+AES-128-CCM-8:+AEAD", None), ("TLS-RSA-WITH-AES-256-CCM-8", "+RSA:+AES-256-CCM-8:+AEAD", None), ("TLS-DHE-RSA-WITH-AES-128-CCM-8", "+DHE-RSA:+AES-128-CCM-8:+AEAD", None), ("TLS-DHE-RSA-WITH-AES-256-CCM-8", "+DHE-RSA:+AES-256-CCM-8:+AEAD", None), ("TLS-DHE-PSK-WITH-3DES-EDE-CBC-SHA", "+DHE-PSK:+3DES-CBC:+SHA1", None), ("TLS-DHE-PSK-WITH-AES-128-CBC-SHA", "+DHE-PSK:+AES-128-CBC:+SHA1", None), ("TLS-DHE-PSK-WITH-AES-256-CBC-SHA", "+DHE-PSK:+AES-256-CBC:+SHA1", None), ("TLS-ECDHE-PSK-WITH-AES-256-CBC-SHA", "+ECDHE-PSK:+AES-256-CBC:+SHA1", None), ("TLS-ECDHE-PSK-WITH-AES-128-CBC-SHA", "+ECDHE-PSK:+AES-128-CBC:+SHA1", None), ("TLS-ECDHE-PSK-WITH-3DES-EDE-CBC-SHA", "+ECDHE-PSK:+3DES-CBC:+SHA1", None), ("TLS-RSA-PSK-WITH-3DES-EDE-CBC-SHA", "+RSA-PSK:+3DES-CBC:+SHA1", None), ("TLS-RSA-PSK-WITH-AES-256-CBC-SHA", "+RSA-PSK:+AES-256-CBC:+SHA1", None), ("TLS-RSA-PSK-WITH-AES-128-CBC-SHA", "+RSA-PSK:+AES-128-CBC:+SHA1", None), ("TLS-ECDHE-PSK-WITH-AES-256-CBC-SHA384", "+ECDHE-PSK:+AES-256-CBC:+SHA384", None), ("TLS-ECDHE-PSK-WITH-CAMELLIA-256-CBC-SHA384", "+ECDHE-PSK:+CAMELLIA-256-CBC:+SHA384", None), ("TLS-ECDHE-PSK-WITH-AES-128-CBC-SHA256", "+ECDHE-PSK:+AES-128-CBC:+SHA256", None), ("TLS-ECDHE-PSK-WITH-CAMELLIA-128-CBC-SHA256", "+ECDHE-PSK:+CAMELLIA-128-CBC:+SHA256", None), ("TLS-ECDHE-PSK-WITH-NULL-SHA384", "+ECDHE-PSK:+NULL:+SHA384", None), ("TLS-ECDHE-PSK-WITH-NULL-SHA256", "+ECDHE-PSK:+NULL:+SHA256", None), ("TLS-PSK-WITH-AES-128-CBC-SHA256", "+PSK:+AES-128-CBC:+SHA256", None), ("TLS-PSK-WITH-AES-256-CBC-SHA384", "+PSK:+AES-256-CBC:+SHA384", None), ("TLS-DHE-PSK-WITH-AES-128-CBC-SHA256", "+DHE-PSK:+AES-128-CBC:+SHA256", None), ("TLS-DHE-PSK-WITH-AES-256-CBC-SHA384", "+DHE-PSK:+AES-256-CBC:+SHA384", None), ("TLS-PSK-WITH-NULL-SHA256", "+PSK:+NULL:+SHA256", None), ("TLS-PSK-WITH-NULL-SHA384", "+PSK:+NULL:+SHA384", None), ("TLS-DHE-PSK-WITH-NULL-SHA256", "+DHE-PSK:+NULL:+SHA256", None), ("TLS-DHE-PSK-WITH-NULL-SHA384", "+DHE-PSK:+NULL:+SHA384", None), ("TLS-RSA-PSK-WITH-AES-256-CBC-SHA384", "+RSA-PSK:+AES-256-CBC:+SHA384", None), ("TLS-RSA-PSK-WITH-AES-128-CBC-SHA256", "+RSA-PSK:+AES-128-CBC:+SHA256", None), ("TLS-RSA-PSK-WITH-NULL-SHA256", "+RSA-PSK:+NULL:+SHA256", None), ("TLS-RSA-PSK-WITH-NULL-SHA384", "+RSA-PSK:+NULL:+SHA384", None), ("TLS-DHE-PSK-WITH-CAMELLIA-128-CBC-SHA256", "+DHE-PSK:+CAMELLIA-128-CBC:+SHA256", None), ("TLS-DHE-PSK-WITH-CAMELLIA-256-CBC-SHA384", "+DHE-PSK:+CAMELLIA-256-CBC:+SHA384", None), ("TLS-PSK-WITH-CAMELLIA-128-CBC-SHA256", "+PSK:+CAMELLIA-128-CBC:+SHA256", None), ("TLS-PSK-WITH-CAMELLIA-256-CBC-SHA384", "+PSK:+CAMELLIA-256-CBC:+SHA384", None), ("TLS-RSA-PSK-WITH-CAMELLIA-256-CBC-SHA384", "+RSA-PSK:+CAMELLIA-256-CBC:+SHA384", None), ("TLS-RSA-PSK-WITH-CAMELLIA-128-CBC-SHA256", "+RSA-PSK:+CAMELLIA-128-CBC:+SHA256", None), ("TLS-PSK-WITH-AES-128-GCM-SHA256", "+PSK:+AES-128-GCM:+AEAD", None), ("TLS-PSK-WITH-AES-256-GCM-SHA384", "+PSK:+AES-256-GCM:+AEAD", None), ("TLS-DHE-PSK-WITH-AES-128-GCM-SHA256", "+DHE-PSK:+AES-128-GCM:+AEAD", None), ("TLS-DHE-PSK-WITH-AES-256-GCM-SHA384", "+DHE-PSK:+AES-256-GCM:+AEAD", None), ("TLS-PSK-WITH-AES-128-CCM", "+PSK:+AES-128-CCM:+AEAD", None), ("TLS-PSK-WITH-AES-256-CCM", "+PSK:+AES-256-CCM:+AEAD", None), ("TLS-DHE-PSK-WITH-AES-128-CCM", "+DHE-PSK:+AES-128-CCM:+AEAD", None), ("TLS-DHE-PSK-WITH-AES-256-CCM", "+DHE-PSK:+AES-256-CCM:+AEAD", None), ("TLS-PSK-WITH-AES-128-CCM-8", "+PSK:+AES-128-CCM-8:+AEAD", None), ("TLS-PSK-WITH-AES-256-CCM-8", "+PSK:+AES-256-CCM-8:+AEAD", None), ("TLS-DHE-PSK-WITH-AES-128-CCM-8", "+DHE-PSK:+AES-128-CCM-8:+AEAD", None), ("TLS-DHE-PSK-WITH-AES-256-CCM-8", "+DHE-PSK:+AES-256-CCM-8:+AEAD", None), ("TLS-RSA-PSK-WITH-CAMELLIA-128-GCM-SHA256", "+RSA-PSK:+CAMELLIA-128-GCM:+AEAD", None), ("TLS-RSA-PSK-WITH-CAMELLIA-256-GCM-SHA384", "+RSA-PSK:+CAMELLIA-256-GCM:+AEAD", None), ("TLS-PSK-WITH-CAMELLIA-128-GCM-SHA256", "+PSK:+CAMELLIA-128-GCM:+AEAD", None), ("TLS-PSK-WITH-CAMELLIA-256-GCM-SHA384", "+PSK:+CAMELLIA-256-GCM:+AEAD", None), ("TLS-DHE-PSK-WITH-CAMELLIA-128-GCM-SHA256", "+DHE-PSK:+CAMELLIA-128-GCM:+AEAD", None), ("TLS-DHE-PSK-WITH-CAMELLIA-256-GCM-SHA384", "+DHE-PSK:+CAMELLIA-256-GCM:+AEAD", None), ("TLS-RSA-PSK-WITH-AES-256-GCM-SHA384", "+RSA-PSK:+AES-256-GCM:+AEAD", None), ("TLS-RSA-PSK-WITH-AES-128-GCM-SHA256", "+RSA-PSK:+AES-128-GCM:+AEAD", None), ] for m, g_exp, o_exp in ciphers: if g_exp != None: g = translate_gnutls(m) assert_equal(g, g_exp) if o_exp != None: o = translate_ossl(m) assert_equal(o, o_exp) test_all_common()