| # Copyright 2016 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 logging |
| import time |
| import os |
| |
| from autotest_lib.client.common_lib import error |
| from autotest_lib.client.cros.crash.crash_test import CrashTest |
| from autotest_lib.server import test |
| |
| |
| class logging_GenerateCrashFiles(test.test): |
| """Tests if crash files are generated when crash is invoked.""" |
| version = 1 |
| SHORT_WAIT = 10 |
| REBOOT_TIMEOUT = 60 |
| CRASH_DIR = CrashTest._SYSTEM_CRASH_DIR |
| |
| def check_missing_crash_files(self, expected_extensions, existing_files, |
| prefix): |
| """Find if the crash dumps with appropriate extensions are created. |
| @param expected_extensions: matching crash file extensions. |
| @param existing files: state of crash dir before induced crash. |
| @param prefix: matching crash file prefix. |
| @raises TestFail error if crash files are not generated. |
| """ |
| crash_extensions = list() |
| |
| out = self.host.run('ls %s' % self.CRASH_DIR, ignore_status=True) |
| current_files = out.stdout.strip().split('\n') |
| |
| file_diff = set(current_files) - set(existing_files) |
| logging.info("Crash files diff: %s" % file_diff) |
| |
| # Check empty files, prefix, and extension of crash files. |
| for crash_file in file_diff: |
| if crash_file.split('.')[0] != prefix: |
| continue |
| file_path = self.CRASH_DIR + '/' + crash_file |
| if '0' == self.host.run("du -h %s" % file_path).stdout[:1]: |
| raise error.TestFail('Crash file is empty: %s' % crash_file) |
| crash_extensions.append(crash_file.split('.')[-1]) |
| |
| # Check for presence of all crash file extensions. |
| extension_diff = set(expected_extensions) - set(crash_extensions) |
| if len(extension_diff) > 0: |
| raise error.TestFail('%s files not generated.' % extension_diff) |
| |
| # Remove existing file crash files, if any. |
| for crash_file in file_diff: |
| self.host.run('rm %s' % self.CRASH_DIR + '/' + crash_file) |
| |
| def run_once(self, host, crash_cmd, crash_files, prefix): |
| self.host = host |
| |
| # Sync the file system. |
| self.host.run('sync', ignore_status=True) |
| time.sleep(self.SHORT_WAIT) |
| file_list = self.host.run('ls %s' % self.CRASH_DIR, ignore_status=True) |
| existing_files = file_list.stdout.strip().split('\n') |
| |
| # Execute crash command. |
| self.host.run(crash_cmd, ignore_status=True, |
| timeout=30, ignore_timeout=True) |
| logging.debug('Crash invoked!') |
| |
| # In case of kernel crash the reboot will take some time. |
| host.ping_wait_up(self.REBOOT_TIMEOUT) |
| |
| # Sync the file system. |
| self.host.run('sync', ignore_status=True) |
| time.sleep(self.SHORT_WAIT) |
| |
| self.check_missing_crash_files(crash_files, existing_files, prefix) |