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#!/usr/bin/env python
# -*- coding: utf-8 -*-
"""Tests locking."""
import logging
import os
import socket
import subprocess
import sys
import unittest
import aptdaemon.test
import aptdaemon.worker
DEBUG = False
import apt_pkg
apt_pkg.init()
class LockTest(unittest.TestCase):
REMOTE_REPO = "deb copy://%s/repo ./" % aptdaemon.test.get_tests_dir()
def setUp(self):
self.chroot = aptdaemon.test.Chroot("-lock-test")
self.chroot.setup()
self.addCleanup(self.chroot.remove)
# Required to change the lock pathes to the chroot
self.worker = aptdaemon.worker.AptWorker(chroot=self.chroot.path,
load_plugins=False)
pkg_path = os.path.join(aptdaemon.test.get_tests_dir(),
"repo/silly-base_0.1-0_all.deb")
self.dpkg_cmd = ["fakeroot", "dpkg", "--root", self.chroot.path,
"--log=%s/var/log/dpkg.log" % self.chroot.path,
"--install", pkg_path]
self.inst_cmd = ('apt-get install silly-base '
'-o "Dir"="%s" '
'-o "Dir::state::status"="%s/var/lib/dpkg/status" '
'-o "Dir::Bin::Dpkg"="%s/dpkg-wrapper.sh" '
'-o "DPkg::Options::"="--root=%s" -y --force-yes' %
(self.chroot.path, self.chroot.path,
aptdaemon.test.get_tests_dir(), self.chroot.path))
self.apt_cmd = ('apt-get update -o "Dir"="%s" -o "Dir::state::status="'
'"%s/var/lib/dpkg/status"' %
(self.chroot.path, self.chroot.path))
# ensure to kill /etc/apt/apt.conf.d, otherwise stuff like
# the (root only) Dpkg::Post-Invoke actions are run
with open("%s/etc/apt/apt.conf" % self.chroot.path, "w") as conf:
conf.write('Dir::Etc::parts "/directory-does-not-exist";')
self.env = {
# override the default apt conf to kill off apt.conf.d includes
"APT_CONFIG": "%s/etc/apt/apt.conf" % self.chroot.path,
# provide a path for dpkg
"PATH": "/sbin:/bin:/usr/bin:/usr/sbin"}
def test_global_lock(self):
"""Check if the lock blocks dpkg and apt-get."""
# Lock!
aptdaemon.worker.lock.acquire()
self.assertEqual(2, subprocess.call(self.dpkg_cmd, env=self.env))
self.assertEqual(100, subprocess.call(self.apt_cmd, env=self.env,
shell=True))
# Relase and all should work again!
aptdaemon.worker.lock.release()
self.assertEqual(0, subprocess.call(self.dpkg_cmd, env=self.env))
self.assertEqual(0, subprocess.call(self.apt_cmd, env=self.env,
shell=True))
def test_status_lock(self):
"""Test the lock on the status lock."""
# Lock!
aptdaemon.worker.lock.status_lock.acquire()
self.assertEqual(2, subprocess.call(self.dpkg_cmd, env=self.env))
self.assertEqual(100, subprocess.call(self.apt_cmd, env=self.env,
shell=True))
# Relase and all should work again!
aptdaemon.worker.lock.status_lock.release()
self.assertEqual(0, subprocess.call(self.dpkg_cmd, env=self.env))
self.assertEqual(0, subprocess.call(self.apt_cmd, env=self.env,
shell=True))
def test_lists_lock(self):
"""Test the lock on the repository packages lists."""
# Lock!
aptdaemon.worker.lock.lists_lock.acquire()
# Dpkg doesn't care about the lock
self.assertEqual(0, subprocess.call(self.dpkg_cmd, env=self.env))
self.assertEqual(100, subprocess.call(self.apt_cmd, env=self.env,
shell=True))
# Relase and all should work again!
aptdaemon.worker.lock.lists_lock.release()
self.assertEqual(0, subprocess.call(self.apt_cmd, env=self.env,
shell=True))
def test_archives_lock(self):
"""Test the lock on the download archives."""
# Skip the test if we don't have networking
aptdaemon.worker.lock.archive_lock.acquire()
lst_path = os.path.join(self.chroot.path, "etc/apt/sources.list")
with open(lst_path, "w") as lst_file:
lst_file.write(self.REMOTE_REPO)
# Dpkg and apt-get doen't care about the lock as long as there aren't
# any downloads required
self.assertEqual(0, subprocess.call(self.dpkg_cmd, env=self.env))
self.assertEqual(0, subprocess.call(self.apt_cmd, env=self.env,
shell=True))
self.assertEqual(100, subprocess.call(self.inst_cmd, env=self.env,
shell=True))
# Relase and all should work again!
aptdaemon.worker.lock.archive_lock.release()
self.assertEqual(0, subprocess.call(self.inst_cmd, env=self.env,
shell=True))
@unittest.skipIf(sys.version_info.major < 3, "Python 3 only")
def setUp():
pass
if __name__ == "__main__":
if DEBUG:
logging.basicConfig(level=logging.DEBUG)
unittest.main()
# vim: ts=4 et sts=4
|
