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# Test apport_python_hook.py
#
# Copyright (c) 2006 - 2011 Canonical Ltd.
# Authors: Robert Collins <robert@ubuntu.com>
# Martin Pitt <martin.pitt@ubuntu.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. See http://www.gnu.org/copyleft/gpl.html for
# the full text of the license.
import unittest, tempfile, subprocess, os, stat, shutil, atexit
temp_report_dir = tempfile.mkdtemp()
os.environ['APPORT_REPORT_DIR'] = temp_report_dir
atexit.register(shutil.rmtree, temp_report_dir)
import apport.fileutils, problem_report
class T(unittest.TestCase):
def tearDown(self):
for f in apport.fileutils.get_all_reports():
os.unlink(f)
def _test_crash(self, extracode='', scriptname=None):
'''Create a test crash.'''
# put the script into /var/tmp, since that isn't ignored in the
# hook
if scriptname:
script = scriptname
fd = os.open(scriptname, os.O_CREAT | os.O_WRONLY)
else:
(fd, script) = tempfile.mkstemp(dir='/var/tmp')
try:
os.write(fd, ('''#!/usr/bin/env %s
import apport_python_hook
apport_python_hook.install()
def func(x):
raise Exception('This should happen.')
%s
func(42)
''' % (os.getenv('PYTHON', 'python'), extracode)).encode())
os.close(fd)
os.chmod(script, 0o755)
p = subprocess.Popen([script, 'testarg1', 'testarg2'],
stdout=subprocess.PIPE, stderr=subprocess.PIPE, env=os.environ)
err = p.communicate()[1].decode()
self.assertEqual(p.returncode, 1,
'crashing test python program exits with failure code')
self.assertTrue('Exception: This should happen.' in err)
self.assertFalse('OSError' in err, err)
finally:
os.unlink(script)
return script
def test_general(self):
'''general operation of the Python crash hook.'''
script = self._test_crash()
# did we get a report?
reports = apport.fileutils.get_new_reports()
pr = None
self.assertEqual(len(reports), 1, 'crashed Python program produced a report')
self.assertEqual(stat.S_IMODE(os.stat(reports[0]).st_mode),
0o640, 'report has correct permissions')
pr = problem_report.ProblemReport()
with open(reports[0], 'rb') as f:
pr.load(f)
# check report contents
expected_keys = ['InterpreterPath', 'PythonArgs',
'Traceback', 'ProblemType', 'ProcEnviron', 'ProcStatus',
'ProcCmdline', 'Date', 'ExecutablePath', 'ProcMaps',
'UserGroups']
self.assertTrue(set(expected_keys).issubset(set(pr.keys())),
'report has necessary fields')
self.assertTrue('bin/python' in pr['InterpreterPath'])
self.assertEqual(pr['ExecutablePath'], script)
self.assertEqual(pr['PythonArgs'], "['%s', 'testarg1', 'testarg2']" % script)
self.assertTrue(pr['Traceback'].startswith('Traceback'))
self.assertTrue("func\n raise Exception('This should happen.')" in pr['Traceback'],
pr['Traceback'])
def test_existing(self):
'''Python crash hook overwrites seen existing files.'''
script = self._test_crash()
# did we get a report?
reports = apport.fileutils.get_new_reports()
self.assertEqual(len(reports), 1, 'crashed Python program produced a report')
self.assertEqual(stat.S_IMODE(os.stat(reports[0]).st_mode),
0o640, 'report has correct permissions')
# touch report -> "seen" case
apport.fileutils.mark_report_seen(reports[0])
reports = apport.fileutils.get_new_reports()
self.assertEqual(len(reports), 0)
script = self._test_crash(scriptname=script)
reports = apport.fileutils.get_new_reports()
self.assertEqual(len(reports), 1)
# "unseen" case
script = self._test_crash(scriptname=script)
reports = apport.fileutils.get_new_reports()
self.assertEqual(len(reports), 1)
def test_no_argv(self):
'''with zapped sys.argv.'''
self._test_crash('import sys\nsys.argv = None')
# did we get a report?
reports = apport.fileutils.get_new_reports()
pr = None
self.assertEqual(len(reports), 1, 'crashed Python program produced a report')
self.assertEqual(stat.S_IMODE(os.stat(reports[0]).st_mode),
0o640, 'report has correct permissions')
pr = problem_report.ProblemReport()
with open(reports[0], 'rb') as f:
pr.load(f)
# check report contents
expected_keys = ['InterpreterPath',
'Traceback', 'ProblemType', 'ProcEnviron', 'ProcStatus',
'ProcCmdline', 'Date', 'ExecutablePath', 'ProcMaps',
'UserGroups']
self.assertTrue(set(expected_keys).issubset(set(pr.keys())),
'report has necessary fields')
self.assertTrue('bin/python' in pr['InterpreterPath'])
self.assertTrue(pr['Traceback'].startswith('Traceback'))
def _assert_no_reports(self):
'''Assert that there are no crash reports.'''
reports = apport.fileutils.get_new_reports()
self.assertEqual(len(reports), 0,
'no crash reports present (cwd: %s)' % os.getcwd())
def test_interactive(self):
'''interactive Python sessions never generate a report.'''
orig_cwd = os.getcwd()
try:
for d in ('/tmp', '/usr/local', '/usr'):
os.chdir(d)
p = subprocess.Popen(['python'], stdin=subprocess.PIPE,
stdout=subprocess.PIPE, stderr=subprocess.PIPE)
(out, err) = p.communicate(b'raise ValueError')
out = out.decode()
err = err.decode()
assert p.returncode != 0
assert out == ''
assert 'ValueError' in err
self._assert_no_reports()
finally:
os.chdir(orig_cwd)
def test_ignoring(self):
'''the Python crash hook respects the ignore list.'''
# put the script into /var/crash, since that isn't ignored in the
# hook
(fd, script) = tempfile.mkstemp(dir=apport.fileutils.report_dir)
ifpath = os.path.expanduser(apport.report._ignore_file)
orig_ignore_file = None
try:
os.write(fd, b'''#!/usr/bin/env %s
import apport_python_hook
apport_python_hook.install()
def func(x):
raise Exception, 'This should happen.'
func(42)
''' % os.getenv('PYTHON', 'python'))
os.close(fd)
os.chmod(script, 0o755)
# move aside current ignore file
if os.path.exists(ifpath):
orig_ignore_file = ifpath + '.apporttest'
os.rename(ifpath, orig_ignore_file)
# ignore
r = apport.report.Report()
r['ExecutablePath'] = script
r.mark_ignore()
r = None
p = subprocess.Popen([script, 'testarg1', 'testarg2'],
stdout=subprocess.PIPE, stderr=subprocess.PIPE)
err = p.communicate()[1].decode()
self.assertEqual(p.returncode, 1,
'crashing test python program exits with failure code')
self.assertTrue('Exception: This should happen.' in err)
finally:
os.unlink(script)
# clean up our ignore file
if os.path.exists(ifpath):
os.unlink(ifpath)
if orig_ignore_file:
os.rename(orig_ignore_file, ifpath)
# did we get a report?
reports = apport.fileutils.get_new_reports()
self.assertEqual(len(reports), 0)
def test_no_flooding(self):
'''limit successive reports'''
count = 0
limit = 5
while count < limit:
self._test_crash(scriptname='/var/tmp/pytestcrash')
reports = apport.fileutils.get_new_reports()
if not reports:
break
self.assertEqual(len(reports), 1, 'crashed Python program produced one report')
apport.fileutils.mark_report_seen(reports[0])
count += 1
self.assertGreater(count, 1)
self.assertLess(count, limit)
unittest.main()
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