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# 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'))
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