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#!/usr/bin/python -u
#
# Copyright (c) 2011 The Chromium OS Authors. All rights reserved.
# Use of this source code is governed by a BSD-style license that can be
# found in the LICENSE file.
#
import glob, os, shutil, tempfile, time, unittest
import common
from autotest_lib.client.bin import utils
from autotest_lib.client.common_lib import global_config
from autotest_lib.client.common_lib.test_utils import mock
from autotest_lib.tko.site_parse import StackTrace
class stack_trace_test(unittest.TestCase):
def setUp(self):
self._fake_results = tempfile.mkdtemp()
self._cros_src_dir = global_config.global_config.get_config_value(
'CROS', 'source_tree', default=None)
if not self._cros_src_dir:
self.fail('No Chrome OS source tree defined in global_config.ini')
self._stack_trace = StackTrace(
self._fake_results, self._cros_src_dir)
self._cache_dir = os.path.join(
self._cros_src_dir, 'chroot', self._stack_trace._CACHE_DIR)
# Ensure we don't obliterate a live cache directory by accident.
if os.path.exists(self._cache_dir):
self.fail(
'Symbol cache directory already exists. Cowardly refusing to'
' run. Please remove this directory manually to continue.')
def tearDown(self):
shutil.rmtree(self._fake_results)
if os.path.exists(self._cache_dir):
shutil.rmtree(self._cache_dir)
def _setup_basic_cache(self,
job_name='x86-alex-r16-R16-1166.0.0-a1-b1118_bvt',
mkdir=True):
# Ensure cache directory is present.
self._stack_trace._get_cache_dir()
board, rev, version = self._stack_trace._parse_job_name(job_name)
symbols_dir = os.path.join(
self._cache_dir, '-'.join([board, rev, version]))
if mkdir:
os.mkdir(symbols_dir)
chroot_symbols_dir = os.sep + os.path.relpath(
symbols_dir, self._stack_trace._chroot_dir)
return job_name, symbols_dir, chroot_symbols_dir
def test_get_job_name(self):
job_name = 'x86-alex-r16-R16-1166.0.0-a1-b1118_regression'
with open(os.path.join(self._fake_results, 'keyval'), 'w') as f:
f.write('label=%s' % job_name)
self.assertEqual(self._stack_trace._get_job_name(), job_name)
def test_parse_3_tuple_job_name(self):
job_name = 'x86-alex-r16-R16-1166.0.0-a1-b1118_regression'
board, rev, version = self._stack_trace._parse_job_name(job_name)
self.assertEqual(board, 'x86-alex')
self.assertEqual(rev, 'r16')
self.assertEqual(version, '1166.0.0')
def test_parse_4_tuple_job_name(self):
job_name = 'x86-mario-r15-0.15.1011.74-a1-b61_bvt'
board, rev, version = self._stack_trace._parse_job_name(job_name)
self.assertEqual(board, 'x86-mario')
self.assertEqual(rev, 'r15')
self.assertEqual(version, '0.15.1011.74')
def test_parse_4_tuple_au_job_name(self):
job_name = 'x86-alex-r15-0.15.1011.81_to_0.15.1011.82-a1-b69_mton_au'
board, rev, version = self._stack_trace._parse_job_name(job_name)
self.assertEqual(board, 'x86-alex')
self.assertEqual(rev, 'r15')
self.assertEqual(version, '0.15.1011.82')
def test_parse_3_tuple_au_job_name(self):
job_name = 'x86-alex-r16-1165.0.0_to_R16-1166.0.0-a1-b69_mton_au'
board, rev, version = self._stack_trace._parse_job_name(job_name)
self.assertEqual(board, 'x86-alex')
self.assertEqual(rev, 'r16')
self.assertEqual(version, '1166.0.0')
def test_get_cache_dir(self):
# Test without existing cache dir.
self.assertFalse(os.path.exists(self._cache_dir))
self.assertEquals(self._stack_trace._get_cache_dir(), self._cache_dir)
self.assertTrue(os.path.exists(self._cache_dir))
# Test with existing cache dir.
self.assertEquals(self._stack_trace._get_cache_dir(), self._cache_dir)
def test_get_symbol_dir_with_cache(self):
job_name, symbols_dir, chroot_symbols_dir = self._setup_basic_cache()
# Create completed file.
open(os.path.join(
symbols_dir, self._stack_trace._COMPLETE_FILE), 'w').close()
self.assertEqual(
self._stack_trace._get_symbol_dir(job_name), chroot_symbols_dir)
def test_get_symbol_dir_with_incomplete_cache(self):
# Create symbol dir w/o completed file.
job_name, symbols_dir, chroot_symbols_dir = self._setup_basic_cache()
self.god = mock.mock_god()
self.god.stub_function(utils, 'poll_for_condition')
utils.poll_for_condition.expect_any_call()
self.assertEqual(
self._stack_trace._get_symbol_dir(job_name), chroot_symbols_dir)
self.god.unstub_all()
def test_get_symbol_dir_with_incomplete_cache_timeout(self):
# Create symbol dir w/o completed file.
job_name, symbols_dir, chroot_symbols_dir = self._setup_basic_cache()
# Adjust timeout to be very low. Ensure exception is raised.
self._stack_trace._SYMBOL_WAIT_TIMEOUT = 1
self.assertRaises(
utils.TimeoutError, self._stack_trace._get_symbol_dir, job_name)
def test_trim_cache(self):
# Ensure cache dir is created.
self._stack_trace._get_cache_dir()
# Create 4 folders, 2 >24hrs old, 2 recent.
dirs = [
('oldest', time.time() - 60*60*24*10),
('old', time.time() - 60*60*24),
('new', time.time() - 60*60*12),
('newest', time.time())]
for dname, dtime in dirs:
dpath = os.path.join(self._cache_dir, dname)
os.mkdir(dpath)
os.utime(dpath, (dtime, dtime))
self._stack_trace._trim_cache()
# Ensure only folders < 24hrs old exist.
for dname, dtime in dirs:
dpath = os.path.join(self._cache_dir, dname)
self.assertEquals(
os.path.exists(dpath), time.time() - dtime < 60*60*24)
def test_setup_cleanup_results_in_chroot(self):
# Write junk file to results directory.
test_string = 'junkity junk junk junk.'
junk_results_file = os.path.join(self._fake_results, 'junk.txt')
with open(junk_results_file, 'w') as f:
f.write(test_string)
# Mount results directory inside of chroot.
chroot_results_dir = self._stack_trace._setup_results_in_chroot()
full_chroot_results_dir = os.path.join(
self._stack_trace._chroot_dir, chroot_results_dir.lstrip(os.sep))
# Ensure results directory is mounted into chroot w/ r,w privs.
test_string_2 = 'with a dash of salt and pepper.'
junk_chroot_file = os.path.join(full_chroot_results_dir, 'junk.txt')
with open(junk_chroot_file, 'a+') as f:
self.assertEquals(test_string, f.read())
f.write(test_string_2)
# Unmount results directory and ensure mount pt is cleaned up.
self._stack_trace._cleanup_results_in_chroot(chroot_results_dir)
self.assertFalse(os.path.exists(full_chroot_results_dir))
# Ensure data we wrote is still there.
with open(junk_results_file, 'r') as f:
self.assertEqual(test_string + test_string_2, f.read())
def test_generate_stack_traces_with_live_data(self):
# Retrieve cores from results set with known crashes. Corresponds to
# beta build x86-alex-r15-0.15.1011.73-a1-b60. gsutil doesn't properly
# rebuild directory structure on download, so just grab the cores.
utils.run(
'gsutil -m cp'
' gs://chromeos-autotest-results/68803-chromeos-test/*.dmp'
' %s' % self._fake_results)
# Grab keyval file
utils.run(
'gsutil -m cp'
' gs://chromeos-autotest-results/68803-chromeos-test/group0/keyval'
' %s' % self._fake_results)
# Enumerate existing .dmp files.
cores = glob.glob('%s/*.dmp' % self._fake_results)
# Generate stack traces...
self._stack_trace.generate()
# Ensure each core has a .dmp.txt file.
for core in cores:
self.assertTrue(os.path.exists(core + '.txt'))
# Check the cache to make sure it was properly setup.
job_name = self._stack_trace._get_job_name()
_, symbols_dir, chroot_symbols_dir = self._setup_basic_cache(
job_name=job_name, mkdir=False)
self.assertEqual(
self._stack_trace._get_symbol_dir(job_name), chroot_symbols_dir)
self.assertTrue(os.path.exists(os.path.join(
symbols_dir, self._stack_trace._COMPLETE_FILE)))
if __name__ == "__main__":
unittest.main()