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pacman/test/pacman/pmtest.py
Dan McGee 624a878701 pactest: generate sync DB's in memory 
Sync database are no longer exploded on the filesystem. Rework the logic
used to generate our test databases so we can create them completely in
memory without having to write the individual files to disk at all. The
local database is unaffected.

Note that several shortcomings in libalpm parsing were discovered by
this change, which have since been temporarily patched around in this
test suite:

* archive_fgets() did not properly handle a file that ended in a
  non-newline, and would silently drop the data in this line.
* sync database with only the file entries and not the directories would
  fail to parse properly, and even cause segfaults in some cases.

Signed-off-by: Dan McGee <dan@archlinux.org>
2011-06-24 01:36:48 -05:00

261 lines
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Python
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#! /usr/bin/python
#
# Copyright (c) 2006 by Aurelien Foret <orelien@chez.com>
#
# This program is free software; you can redistribute it and/or modify
# it under the terms of the GNU General Public License as published by
# the Free Software Foundation; either version 2 of the License, or
# (at your option) any later version.
#
# This program is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
# GNU General Public License for more details.
#
# You should have received a copy of the GNU General Public License
# along with this program. If not, see <http://www.gnu.org/licenses/>.
import os
import shutil
import stat
import time
import pmrule
import pmdb
import pmfile
import util
from util import vprint
class pmtest(object):
"""Test object
"""
def __init__(self, name, root):
self.name = name
self.testname = os.path.basename(name).replace('.py', '')
self.root = root
self.cachepkgs = True
def __str__(self):
return "name = %s\n" \
"testname = %s\n" \
"root = %s" % (self.name, self.testname, self.root)
def addpkg2db(self, treename, pkg):
if not treename in self.db:
self.db[treename] = pmdb.pmdb(treename, self.root)
self.db[treename].pkgs.append(pkg)
def addpkg(self, pkg):
self.localpkgs.append(pkg)
def findpkg(self, name, version, allow_local=False):
"""Find a package object matching the name and version specified in
either sync databases or the local package collection. The local database
is allowed to match if allow_local is True."""
for db in self.db.itervalues():
if db.is_local and not allow_local:
continue
pkg = db.getpkg(name)
if pkg and pkg.version == version:
return pkg
for pkg in self.localpkgs:
if pkg.name == name and pkg.version == version:
return pkg
return None
def addrule(self, rulename):
rule = pmrule.pmrule(rulename)
self.rules.append(rule)
def load(self):
# Reset test parameters
self.result = {
"success": 0,
"fail": 0
}
self.args = ""
self.retcode = 0
self.db = {
"local": pmdb.pmdb("local", self.root)
}
self.localpkgs = []
self.createlocalpkgs = False
self.filesystem = []
self.description = ""
self.option = {}
# Test rules
self.rules = []
self.files = []
self.expectfailure = False
if os.path.isfile(self.name):
# all tests expect this to be available
from pmpkg import pmpkg
execfile(self.name)
else:
raise IOError("file %s does not exist!" % self.name)
def generate(self):
print "==> Generating test environment"
# Cleanup leftover files from a previous test session
if os.path.isdir(self.root):
shutil.rmtree(self.root)
vprint("\t%s" % self.root)
# Create directory structure
vprint(" Creating directory structure:")
dbdir = os.path.join(self.root, util.PM_SYNCDBPATH)
cachedir = os.path.join(self.root, util.PM_CACHEDIR)
syncdir = os.path.join(self.root, util.SYNCREPO)
tmpdir = os.path.join(self.root, util.TMPDIR)
logdir = os.path.join(self.root, os.path.dirname(util.LOGFILE))
etcdir = os.path.join(self.root, os.path.dirname(util.PACCONF))
bindir = os.path.join(self.root, "bin")
sys_dirs = [dbdir, cachedir, syncdir, tmpdir, logdir, etcdir, bindir]
for sys_dir in sys_dirs:
if not os.path.isdir(sys_dir):
vprint("\t%s" % sys_dir[len(self.root)+1:])
os.makedirs(sys_dir, 0755)
# Only the dynamically linked binary is needed for fakechroot
shutil.copy("/bin/sh", bindir)
# Configuration file
vprint(" Creating configuration file")
util.mkcfgfile(util.PACCONF, self.root, self.option, self.db)
# Creating packages
vprint(" Creating package archives")
for pkg in self.localpkgs:
vprint("\t%s" % os.path.join(util.TMPDIR, pkg.filename()))
pkg.makepkg(tmpdir)
for key, value in self.db.iteritems():
if key == "local" and not self.createlocalpkgs:
continue
for pkg in value.pkgs:
vprint("\t%s" % os.path.join(util.PM_CACHEDIR, pkg.filename()))
if self.cachepkgs:
pkg.makepkg(cachedir)
else:
pkg.makepkg(os.path.join(syncdir, value.treename))
pkg.md5sum = util.getmd5sum(pkg.path)
pkg.csize = os.stat(pkg.path)[stat.ST_SIZE]
# Creating sync database archives
vprint(" Creating databases")
for key, value in self.db.iteritems():
vprint("\t" + value.treename)
value.generate()
# Filesystem
vprint(" Populating file system")
for pkg in self.db["local"].pkgs:
vprint("\tinstalling %s" % pkg.fullname())
for f in pkg.files:
vprint("\t%s" % f)
path = os.path.join(self.root, f)
util.mkfile(path, f)
if os.path.isfile(path):
os.utime(path, (355, 355))
for f in self.filesystem:
vprint("\t%s" % f)
path = os.path.join(self.root, f)
util.mkfile(path, f)
if os.path.isfile(path):
os.utime(path, (355, 355))
# Done.
vprint(" Taking a snapshot of the file system")
for roots, dirs, files in os.walk(self.root):
for i in files:
filename = os.path.join(roots, i)
f = pmfile.PacmanFile(self.root, filename.replace(self.root + "/", ""))
self.files.append(f)
vprint("\t%s" % f.name)
def run(self, pacman):
if os.path.isfile(util.PM_LOCK):
print "\tERROR: another pacman session is on-going -- skipping"
return
print "==> Running test"
vprint("\tpacman %s" % self.args)
cmd = [""]
if os.geteuid() != 0:
fakeroot = util.which("fakeroot")
if not fakeroot:
print "WARNING: fakeroot not found!"
else:
cmd.append("fakeroot")
fakechroot = util.which("fakechroot")
if fakechroot:
cmd.append("fakechroot")
if pacman["gdb"]:
cmd.append("libtool execute gdb --args")
if pacman["valgrind"]:
cmd.append("valgrind -q --tool=memcheck --leak-check=full --show-reachable=yes --suppressions=%s/valgrind.supp" % os.getcwd())
cmd.append("\"%s\" --config=\"%s\" --root=\"%s\" --dbpath=\"%s\" --cachedir=\"%s\"" \
% (pacman["bin"],
os.path.join(self.root, util.PACCONF),
self.root,
os.path.join(self.root, util.PM_DBPATH),
os.path.join(self.root, util.PM_CACHEDIR)))
if not pacman["manual-confirm"]:
cmd.append("--noconfirm")
if pacman["debug"]:
cmd.append("--debug=%s" % pacman["debug"])
cmd.append("%s" % self.args)
if not pacman["gdb"] and not pacman["valgrind"] and not pacman["nolog"]:
cmd.append(">\"%s\" 2>&1" % os.path.join(self.root, util.LOGFILE))
vprint("\trunning: %s" % " ".join(cmd))
# Change to the tmp dir before running pacman, so that local package
# archives are made available more easily.
curdir = os.getcwd()
tmpdir = os.path.join(self.root, util.TMPDIR)
os.chdir(tmpdir)
time_start = time.time()
self.retcode = os.system(" ".join(cmd))
time_end = time.time()
vprint("\ttime elapsed: %ds" % (time_end - time_start))
if self.retcode == None:
self.retcode = 0
else:
self.retcode /= 256
vprint("\tretcode = %s" % self.retcode)
os.chdir(curdir)
# Check if the lock is still there
if os.path.isfile(util.PM_LOCK):
print "\tERROR: %s not removed" % util.PM_LOCK
os.unlink(util.PM_LOCK)
# Look for a core file
if os.path.isfile(os.path.join(self.root, util.TMPDIR, "core")):
print "\tERROR: pacman dumped a core file"
def check(self):
print "==> Checking rules"
for i in self.rules:
success = i.check(self)
if success == 1:
msg = " OK "
self.result["success"] += 1
elif success == 0:
msg = "FAIL"
self.result["fail"] += 1
else:
msg = "SKIP"
print "\t[%s] %s" % (msg, i)
# vim: set ts=4 sw=4 et:
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