89 lines
3.5 KiB
Python
89 lines
3.5 KiB
Python
# Copyright (c) 2011 The Chromium OS Authors. All rights reserved.
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# Use of this source code is governed by a BSD-style license that can be
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# found in the LICENSE file.
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import logging
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from autotest_lib.client.common_lib import error
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from autotest_lib.server.cros import vboot_constants as vboot
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from autotest_lib.server.cros.faft.firmware_test import ConnectionError
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from autotest_lib.server.cros.faft.firmware_test import FirmwareTest
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class firmware_InvalidUSB(FirmwareTest):
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"""
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Servo based booting an invalid USB image test.
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This test requires a USB disk plugged-in, which contains a Chrome OS test
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image (built by "build_image --test"). On runtime, this test corrupts the
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USB image and tries to boot into it. A failure is expected. It then
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restores the USB image and boots into it again.
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"""
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version = 1
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NEEDS_SERVO_USB = True
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def restore_usb(self):
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"""Restore the USB image. USB plugs/unplugs happen in this method."""
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self.servo.switch_usbkey('host')
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usb_dev = self.servo.probe_host_usb_dev()
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self.restore_usb_kernel(usb_dev)
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def initialize(self, host, cmdline_args):
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"""Initialize the test"""
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super(firmware_InvalidUSB, self).initialize(host, cmdline_args)
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self.setup_usbkey(usbkey=True)
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self.servo.switch_usbkey('host')
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usb_dev = self.servo.probe_host_usb_dev()
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self.assert_test_image_in_usb_disk(usb_dev)
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self.corrupt_usb_kernel(usb_dev)
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self.switcher.setup_mode('normal')
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self.servo.switch_usbkey('dut')
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def cleanup(self):
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"""Cleanup the test"""
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try:
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self.restore_usb()
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except Exception as e:
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logging.error("Caught exception: %s", str(e))
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super(firmware_InvalidUSB, self).cleanup()
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def run_once(self):
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"""Main test logic"""
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logging.info("Turn on the recovery boot. Remove and insert the"
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"corrupted USB stick, a boot failure is expected."
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"Restore the USB image and boot it again.")
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self.check_state((self.checkers.crossystem_checker, {
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'devsw_boot': '0',
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'mainfw_type': 'normal',
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}))
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# Switch servo v4 (if present) as a SNK. Make sure USB key is bootable.
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self.set_servo_v4_role_to_snk()
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self.switcher.reboot_to_mode(to_mode='rec', wait_for_dut_up=False)
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logging.info('Wait to ensure the USB image is unable to boot...')
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try:
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self.switcher.wait_for_client(
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timeout=self.faft_config.usb_image_boot_timeout)
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raise error.TestFail('Should not boot from the invalid USB image.')
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except ConnectionError:
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logging.info(
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'The USB image is surely unable to boot. Restore it and try...')
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self.restore_usb()
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self.servo.switch_usbkey('dut')
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self.switcher.wait_for_client()
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logging.info("Expected to boot the restored USB image and reboot.")
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self.check_state((self.checkers.crossystem_checker, {
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'mainfw_type': 'recovery',
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'recovery_reason': vboot.RECOVERY_REASON['RO_MANUAL'],
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}))
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self.switcher.mode_aware_reboot()
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logging.info("Expected to normal boot and done.")
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self.check_state((self.checkers.crossystem_checker, {
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'devsw_boot': '0',
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'mainfw_type': 'normal',
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}))
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