# Copyright (c) 2014 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 = "harpreet@google.com"
NAME = "kernel_ExternalUsbPeripheralsDetectionStress"
PURPOSE = "Kernel USB detection stress test"
CRITERIA = "This test will fail if any of the actions or checks fail."
TIME = "SHORT"
TEST_CATEGORY = "Functional"
TEST_CLASS = "platform, kernel"
TEST_TYPE = "server"
SUITE = "kernel_usb"
DEPENDENCIES = "servo, kernel_usb"

DOC = """
This test uses servo to connect USB devices. This test verifies if drivers are
created for each USB device.

The test fails if
- USB device is not detected in lsusb command
- driver for USB device is not created
- USB detected peripherals are different than expected
- there is no servo board attached

"""

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

def run(machine):
    host = hosts.create_host(machine, servo_args=servo_args)

    loop_count = int(args_dict.get('iterations', 100))

    job.run_test("kernel_ExternalUsbPeripheralsDetectionStress", host=host,
                 disable_sysinfo=True, loop_count=loop_count)

parallel_simple(run, machines)