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#!/usr/bin/python
#
# Copyright (C) 2010 Julian Andres Klode <jak@debian.org>
# 2010 Michael Vogt <mvo@ubuntu.com>
#
# Copying and distribution of this file, with or without modification,
# are permitted in any medium without royalty provided the copyright
# notice and this notice are preserved.
"""Unit tests for verifying the correctness of check_dep, etc in apt_pkg."""
import os
import tempfile
import unittest
from test_all import get_library_dir
import sys
sys.path.insert(0, get_library_dir())
import apt
import apt_pkg
import shutil
import glob
class TestAptCache(unittest.TestCase):
""" test the apt cache """
def setUp(self):
# reset any config manipulations done in the individual tests
apt_pkg.init_config()
def testAptCache(self):
"""cache: iterate all packages and all dependencies """
cache = apt.Cache()
# number is not meaningful and just need to be "big enough",
# the important bit is the test against __len__
self.assertTrue(len(cache) > 100)
# go over the cache and all dependencies, just to see if
# that is possible and does not crash
for pkg in cache:
if pkg.candidate:
for or_dep in pkg.candidate.dependencies:
for dep in or_dep.or_dependencies:
self.assertTrue(dep.name)
self.assertTrue(isinstance(dep.relation, str))
self.assertTrue(dep.pre_depend in (True, False))
# accessing record should take a reasonable time; in
# particular, when using compressed indexes, it should not use
# tons of seek operations
r = pkg.candidate.record
self.assertEqual(r['Package'], pkg.name)
self.assert_('Version' in r)
self.assert_(len(r['Description']) > 0)
self.assert_(str(r).startswith('Package: %s\n' % pkg.name))
def test_get_provided_packages(self):
cache = apt.Cache()
# a true virtual pkg
l = cache.get_providing_packages("mail-transport-agent")
self.assertTrue(len(l) > 0)
self.assertTrue("postfix" in [p.name for p in l])
# this is a not virtual (transitional) package provided by another
l = cache.get_providing_packages("scrollkeeper")
self.assertEqual(l, [])
# now inlcude nonvirtual packages in the search (rarian-compat
# provides scrollkeeper)
l = cache.get_providing_packages("scrollkeeper",
include_nonvirtual=True)
self.assertTrue(len(l), 1)
self.assertTrue("mail-transport-agent" in cache["postfix"].candidate.provides)
def test_low_level_pkg_provides(self):
# low level cache provides list of the pkg
cache = apt_pkg.Cache()
l = cache["mail-transport-agent"].provides_list
# arbitrary number, just needs to be higher enough
self.assertTrue(len(l), 5)
for (providesname, providesver, version) in l:
self.assertEqual(providesname, "mail-transport-agent")
if version.parent_pkg.name == "postfix":
break
else:
self.assertNotReached()
def test_dpkg_journal_dirty(self):
# backup old value
old_status = apt_pkg.config.find_file("Dir::State::status")
# create tmp env
tmpdir = tempfile.mkdtemp()
dpkg_dir = os.path.join(tmpdir,"var","lib","dpkg")
os.makedirs(os.path.join(dpkg_dir,"updates"))
open(os.path.join(dpkg_dir,"status"), "w")
apt_pkg.config.set("Dir::State::status",
os.path.join(dpkg_dir,"status"))
cache = apt.Cache()
# test empty
self.assertFalse(cache.dpkg_journal_dirty)
# that is ok, only [0-9] are dpkg jounral entries
open(os.path.join(dpkg_dir,"updates","xxx"), "w")
self.assertFalse(cache.dpkg_journal_dirty)
# that is a dirty journal
open(os.path.join(dpkg_dir,"updates","000"), "w")
self.assertTrue(cache.dpkg_journal_dirty)
# reset config value
apt_pkg.config.set("Dir::State::status", old_status)
def test_apt_update(self):
rootdir = "./data/tmp"
if os.path.exists(rootdir):
shutil.rmtree(rootdir)
try:
os.makedirs(os.path.join(rootdir, "var/lib/apt/lists/partial"))
except OSError:
pass
state_dir = os.path.join(rootdir, "var/lib/apt")
lists_dir = os.path.join(rootdir, "var/lib/apt/lists")
apt_pkg.config.set("dir::state", state_dir)
# set a local sources.list that does not need the network
base_sources = os.path.abspath(os.path.join(rootdir, "sources.list"))
apt_pkg.config.set("dir::etc::sourcelist", base_sources)
apt_pkg.config.set("dir::etc::sourceparts", "xxx")
# main sources.list
sources_list = base_sources
f=open(sources_list, "w")
repo = os.path.abspath("./data/test-repo2")
f.write("deb copy:%s /\n" % repo)
f.close()
# test single sources.list fetching
sources_list = os.path.join(rootdir, "test.list")
f=open(sources_list, "w")
repo_dir = os.path.abspath("./data/test-repo")
f.write("deb copy:%s /\n" % repo_dir)
f.close()
self.assertTrue(os.path.exists(sources_list))
# write marker to ensure listcleaner is not run
open("./data/tmp/var/lib/apt/lists/marker", "w")
# update a single sources.list
cache = apt.Cache()
cache.update(sources_list=sources_list)
# verify we just got the excpected package file
needle_packages = glob.glob(
lists_dir+"/*tests_data_test-repo_Packages*")
self.assertEqual(len(needle_packages), 1)
# verify that we *only* got the Packages file from a single source
all_packages = glob.glob(lists_dir+"/*_Packages*")
self.assertEqual(needle_packages, all_packages)
# verify that the listcleaner was not run and the marker file is
# still there
self.assertTrue("marker" in os.listdir(lists_dir))
# now run update again (without the "normal" sources.list that
# contains test-repo2 and verify that we got the normal sources.list
cache.update()
needle_packages = glob.glob(lists_dir+"/*tests_data_test-repo2_Packages*")
self.assertEqual(len(needle_packages), 1)
all_packages = glob.glob(lists_dir+"/*_Packages*")
self.assertEqual(needle_packages, all_packages)
# and another update with a single source only
cache = apt.Cache()
cache.update(sources_list=sources_list)
all_packages = glob.glob(lists_dir+"/*_Packages*")
self.assertEqual(len(all_packages), 2)
if __name__ == "__main__":
unittest.main()
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