# Copyright (c) 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.

from autotest_lib.server import utils

AUTHOR = "Chrome OS Team"
NAME = "firmware_EmmcWriteLoad"
PURPOSE = "To ensure eMMC functions properly during heavy loads."
CRITERIA = "This test will fail if eMMC timesout and chromeos install fails."
ATTRIBUTES = "suite:faft_stress"
DEPENDENCIES = "servo_state:WORKING, servo_usb_state:NORMAL"
TIME = "LONG"
TEST_CATEGORY = "Stress"
TEST_CLASS = "firmware"
TEST_TYPE = "server"


DOC = """
This test requires a USB disk plugged-in, which contains a Chrome OS test
image (built by "build_image test"). On runtime, this test first switches
DUT to developer mode. When dev_boot_usb=0, pressing Ctrl-U on developer
screen should not boot the USB disk. When dev_boot_usb=1, pressing Ctrl-U
should boot the USB disk. It will then continually install chromeos while
monitoring dmesg for errors.

The length of time in minutes should be specified by the parameter
-a 'minutes_to_run=240'
"""

args_dict = utils.args_to_dict(args)
servo_args = hosts.CrosHost.get_servo_arguments(args_dict)

def run_emmcwriteload(machine):
    host = hosts.create_host(machine, servo_args=servo_args)
    job.run_test("firmware_EmmcWriteLoad", host=host, cmdline_args=args,
                 disable_sysinfo=True, dev_mode=True, tag="dev")

parallel_simple(run_emmcwriteload, machines)