iproute/tests/ip-tuntap-sanity-test/ip-tuntap-tests.py

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#!/usr/bin/env python3
# SPDX-License-Identifier: LGPL-2.1+
# ~~~
# runtest.sh of /CoreOS/iproute/Sanity/ip-tuntap-sanity-test
# Description: Test basic ip tuntap funcionality
#
# Author: Susant Sahani <susant@redhat.com>
# Copyright (c) 2018 Red Hat, Inc.
# ~~~
import errno
import os
import sys
import time
import unittest
import subprocess
import signal
import shutil
def setUpModule():
if shutil.which('ip') is None:
raise OSError(errno.ENOENT, 'ip not found')
class IPLinkUtilities():
def link_exists(self, link):
self.assertTrue(os.path.exists(os.path.join('/sys/class/net', link)))
class IPTuntapTests(unittest.TestCase, IPLinkUtilities):
def test_add_tap(self):
subprocess.check_output(['ip', 'tuntap', 'add', 'name', 'tap-test', 'mode', 'tap'])
self.link_exists('tap-test')
output=subprocess.check_output(['ip', 'tuntap', 'show', 'dev', 'tap-test']).rstrip().decode('utf-8')
self.assertRegex(output, "tap-test: tap")
subprocess.check_output(['ip', 'link', 'del', 'tap-test'])
def test_add_tun(self):
subprocess.check_output(['ip', 'tuntap', 'add', 'name', 'tun-test', 'mode', 'tun'])
self.link_exists('tun-test')
output=subprocess.check_output(['ip', 'tuntap', 'show', 'dev', 'tun-test']).rstrip().decode('utf-8')
self.assertRegex(output, "tun-test: tun")
subprocess.check_output(['ip', 'link', 'del', 'tun-test'])
def test_add_tun_user_group(self):
subprocess.check_output(['ip', 'tuntap', 'add', 'name', 'tun-test', 'mode', 'tun', 'user', 'root', 'group', 'root'])
self.link_exists('tun-test')
output=subprocess.check_output(['ip', 'tuntap', 'show', 'dev', 'tun-test']).rstrip().decode('utf-8')
self.assertRegex(output, "tun-test: tun")
self.assertRegex(output, "user 0 group 0")
subprocess.check_output(['ip', 'link', 'del', 'tun-test'])
if __name__ == '__main__':
unittest.main(testRunner=unittest.TextTestRunner(stream=sys.stdout,
verbosity=2))