| # Copyright (c) 2012 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 |
| |
| from autotest_lib.client.common_lib import utils |
| from autotest_lib.server.cros.faft.firmware_test import FirmwareTest |
| |
| |
| class firmware_CgptStress(FirmwareTest): |
| """ |
| Servo based, iterative cgpt test. One iteration of test modifies CGPT to |
| switch to boot kernel B and then switch back to kernel A again. |
| """ |
| version = 1 |
| |
| def initialize(self, host, cmdline_args, dev_mode): |
| # Parse arguments from command line |
| dict_args = utils.args_to_dict(cmdline_args) |
| self.faft_iterations = int(dict_args.get('faft_iterations', 1)) |
| super(firmware_CgptStress, self).initialize(host, cmdline_args) |
| self.backup_cgpt_attributes() |
| self.switcher.setup_mode('dev' if dev_mode else 'normal') |
| self.setup_usbkey(usbkey=False) |
| self.setup_kernel('a') |
| |
| def cleanup(self): |
| try: |
| self.restore_cgpt_attributes() |
| except Exception as e: |
| logging.error("Caught exception: %s", str(e)) |
| super(firmware_CgptStress, self).cleanup() |
| |
| def run_once(self): |
| """Runs a single iteration of the test.""" |
| for i in xrange(self.faft_iterations): |
| logging.info('======== Running FAFT ITERATION %d/%s ========', |
| i + 1, self.faft_iterations) |
| logging.info("Expected kernel A boot and prioritize kernel B.") |
| self.check_state((self.checkers.root_part_checker, 'a')) |
| self.reset_and_prioritize_kernel('b') |
| self.switcher.mode_aware_reboot() |
| |
| logging.info("Expected kernel B boot and prioritize kernel A.") |
| self.check_state((self.checkers.root_part_checker, 'b')) |
| self.reset_and_prioritize_kernel('a') |
| self.switcher.mode_aware_reboot() |
| |
| logging.info("Expected kernel A boot, done.") |
| self.check_state((self.checkers.root_part_checker, 'a')) |
