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#!/usr/bin/python
'''Test crash-digger.'''
import unittest, subprocess, tempfile, os, shutil, os.path, time, signal
class _CrashDiggerTest(unittest.TestCase):
def setUp(self):
'''Set up dummy chroot_map, crashdb.conf, and apport-chroot (which just
logs its arguments).'''
self.workdir = tempfile.mkdtemp()
crashdb_conf = os.path.join(self.workdir, 'crashdb.conf')
open(crashdb_conf, 'w').write('''default = 'memory'
databases = { 'memory': {
'impl': 'memory', 'bug_pattern_base': '/tmp', 'distro': 'Testux', 'dummy_data': '1' }
}''')
self.chroot_map = os.path.join(self.workdir, 'chroot_map')
self.testux1_chroot = os.path.join(self.workdir, 'testux1.tar.gz')
self.testux2_chroot = os.path.join(self.workdir, 'testux2.tar.gz')
open(self.testux1_chroot, 'w').close()
open(self.chroot_map, 'w').write('{"Testux 1.0": "%s", "Testux 2.2": "/"}' %
self.testux1_chroot)
self.apport_chroot_log = os.path.join(self.workdir, 'apport-chroot.log')
self.apport_chroot = os.path.join(self.workdir, 'apport-chroot')
open(self.apport_chroot, 'w').write('''#!/bin/sh
echo "$@" >> %s''' % self.apport_chroot_log)
os.chmod(self.apport_chroot, 0755)
self.lock_file = os.path.join(self.workdir, 'lock')
os.environ['APPORT_CRASHDB_CONF'] = crashdb_conf
os.environ['PYTHONPATH'] = '.'
os.environ['PATH'] = '%s:%s:%s' % (self.workdir, './bin', os.environ.get('PATH', ''))
def tearDown(self):
shutil.rmtree(self.workdir)
def call(self, args):
'''Call crash-digger with given arguments.
Return a pair (stdout, stderr).
'''
out = tempfile.TemporaryFile()
err = tempfile.TemporaryFile()
s = subprocess.call(['crash-digger'] + args, stdout=out, stderr=err)
out.seek(0)
err.seek(0)
return (out.read(), err.read())
def test_crashes(self):
'''Crash retracing'''
(out, err) = self.call(['-m', self.chroot_map, '-a', '/dev/zero', '-d',
os.path.join(self.workdir, 'dup.db'), '-vl', self.lock_file])
self.assertEqual(err, '', 'no error messages:\n' + err)
self.assert_("Available releases: ['Testux 1.0', 'Testux 2.2']" in out)
self.assert_('retracing #0' in out)
self.assert_('retracing #1' in out)
self.assert_('retracing #2' in out)
self.assert_('crash is release FooLinux Pi/2 which does not have a chroot available' in out)
self.failIf('failed with status' in out)
self.failIf('#3' in out, 'dupcheck crashes are not retraced')
self.failIf('#4' in out, 'dupcheck crashes are not retraced')
chroot_log = open(self.apport_chroot_log).read()
self.failIf('upgrade' in chroot_log, 'current chroots are not upgraded')
self.assert_('retrace 1\n' in chroot_log)
self.assert_('retrace 2\n' in chroot_log)
self.failIf (os.path.exists(self.lock_file))
def test_crashes_error(self):
'''Crash retracing if apport-chroot fails on bug #1'''
# make apport-retrace fail on bug 1
os.rename(self.apport_chroot, self.apport_chroot + '.bak')
open(self.apport_chroot, 'w').write('''#!/bin/sh
echo "$@" >> %s
while [ -n "$2" ]; do shift; done
if [ "$1" = 1 ]; then
echo "cannot frobnicate chroot" >&2
exit 1
fi
''' % self.apport_chroot_log)
os.chmod(self.apport_chroot, 0755)
(out, err) = self.call(['-m', self.chroot_map, '-a', '/dev/zero', '-d',
os.path.join(self.workdir, 'dup.db'), '-vl', self.lock_file])
self.assert_('Traceback' in err)
self.assert_('SystemError: retracing #1 failed' in err)
self.assert_("Available releases: ['Testux 1.0', 'Testux 2.2']" in out)
self.assert_('retracing #0' in out)
self.assert_('retracing #1' in out)
self.failIf('retracing #2' in out, 'should not continue after errors')
self.assert_('crash is release FooLinux Pi/2 which does not have a chroot available' in out)
self.failIf('#0 failed with status' in out)
self.assert_('#1 failed with status: 1' in out)
self.failIf('#3' in out, 'dupcheck crashes are not retraced')
self.failIf('#4' in out, 'dupcheck crashes are not retraced')
chroot_log = open(self.apport_chroot_log).read()
self.assert_('retrace 1\n' in chroot_log)
self.failIf('retrace 2\n' in chroot_log)
self.assert_(os.path.exists(self.lock_file))
os.rename(self.apport_chroot + '.bak', self.apport_chroot)
# subsequent start should not do anything until the lock file is cleaned up
(out, err) = self.call(['-m', self.chroot_map, '-a', '/dev/zero', '-d',
os.path.join(self.workdir, 'dup.db'), '-vl', self.lock_file])
self.assertEqual(out, '')
self.assertEqual(err, '')
os.unlink(self.lock_file)
# now it should run again
(out, err) = self.call(['-m', self.chroot_map, '-a', '/dev/zero', '-d',
os.path.join(self.workdir, 'dup.db'), '-vl', self.lock_file])
self.assert_('retracing #2' in out)
self.assertEqual(err, '', 'no error messages:\n' + err)
self.failIf (os.path.exists(self.lock_file))
def test_crashes_transient_error(self):
'''Crash retracing if apport-chroot reports a transient error'''
# make apport-retrace fail on bug 1
os.rename(self.apport_chroot, self.apport_chroot + '.bak')
open(self.apport_chroot, 'w').write('''#!/bin/sh
echo "$@" >> %s
while [ -n "$2" ]; do shift; done
if [ "$1" = 1 ]; then
echo "cannot frobnicate chroot" >&2
exit 99
fi
''' % self.apport_chroot_log)
os.chmod(self.apport_chroot, 0755)
(out, err) = self.call(['-m', self.chroot_map, '-a', '/dev/zero', '-d',
os.path.join(self.workdir, 'dup.db'), '-vl', self.lock_file])
self.assert_("Available releases: ['Testux 1.0', 'Testux 2.2']" in out)
self.assert_('retracing #0' in out)
self.assert_('retracing #1' in out)
self.failIf('retracing #2' in out, 'should not continue after errors')
self.assert_('transient error reported; halting' in out)
chroot_log = open(self.apport_chroot_log).read()
self.assert_('retrace 1\n' in chroot_log)
self.failIf('retrace 2\n' in chroot_log)
self.failIf(os.path.exists(self.lock_file))
def test_dupcheck(self):
'''Duplicate checking'''
(out, err) = self.call(['-a', '/dev/zero', '-d',
os.path.join(self.workdir, 'dup.db'), '-vDl', self.lock_file])
self.assertEqual(err, '', 'no error messages:\n' + err)
self.failIf('#1' in out, 'signal crashes are not retraced')
self.failIf('#2' in out, 'signal crashes are not retraced')
self.assert_('checking #3 for duplicate' in out)
self.assert_('checking #4 for duplicate' in out)
self.assert_('Report is a duplicate of #3 (not fixed yet)' in out)
self.failIf(os.path.exists(self.apport_chroot_log))
self.failIf (os.path.exists(self.lock_file))
def test_missing_chroot(self):
'''Detection of missing chroot'''
os.unlink(self.testux1_chroot)
(out, err) = self.call(['-m', self.chroot_map, '-a', '/dev/zero', '-d',
os.path.join(self.workdir, 'dup.db'), '-vl', self.lock_file])
self.assert_('Error: chroot' in err)
self.assert_('for Testux 1.0' in err)
self.assert_(os.path.exists(self.lock_file))
def test_chroot_upgrade(self):
'''Chroots are upgraded daily'''
# make testux chroot older than one day
st = os.stat(self.testux1_chroot)
os.utime(self.testux1_chroot, (st.st_atime, st.st_mtime - 24*3600 - 1))
# check that it was upgraded
(out, err) = self.call(['-m', self.chroot_map, '-a', '/dev/zero', '-d',
os.path.join(self.workdir, 'dup.db'), '-vl', self.lock_file])
self.assertEqual(err, '', 'no error messages:\n' + err)
self.assert_('retracing #1' in out)
chroot_log = open(self.apport_chroot_log).read()
self.assert_('chroot_map upgrade all\n' in chroot_log)
self.assert_('retrace 1\n' in chroot_log)
self.failIf (os.path.exists(self.lock_file))
def test_stderr_redirection(self):
'''apport-chroot's stderr is redirected to stdout'''
open(self.apport_chroot, 'w').write('''#!/bin/sh
echo ApportChrootError >&2''')
# check that it was upgraded
(out, err) = self.call(['-m', self.chroot_map, '-a', '/dev/zero', '-d',
os.path.join(self.workdir, 'dup.db'), '-vl', self.lock_file])
self.assertEqual(err, '', 'no error messages:\n' + err)
self.assert_('ApportChrootError' in out)
tl = unittest.TestLoader()
tests_all = unittest.TestSuite((
tl.loadTestsFromName('__main__')
))
unittest.TextTestRunner(verbosity=2).run(tests_all)
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