blob: e1ccfac0334a976277de16a13d942bcd46406826 [file] [log] [blame]
# Copyright 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.
import logging
import os
import common
from autotest_lib.client.common_lib import error
from autotest_lib.server import test
class brillo_PowerMgmtInterfaces(test.test):
"""Verify presence of required power management kernel interfaces."""
version = 1
def check_cpuidle(self, host):
cpuidle_driver = host.run_output('cat /sys/devices/system/cpu/cpuidle/current_driver')
if cpuidle_driver == 'none' or cpuidle_driver == '':
raise error.testFail('no cpuidle driver registered')
def check_cpufreq(self, host):
cpufreq_governors = host.run_output('cat /sys/devices/system/cpu/cpu0/cpufreq/scaling_available_governors')
if cpufreq_governors == '':
raise error.testFail('no cpufreq governors registered')
def check_wakelocks(self, host):
wakelock_ls = host.run_output('ls /sys/power/wake_lock')
def check_suspend(self, host):
pm_states = host.run_output('cat /sys/power/state')
if pm_states.find("mem") == -1:
raise error.testFail('suspend-to-mem not supported')
def run_once(self, host):
"""Run the Brillo power management kernel interfaces presence test.
@param host: a host object representing the DUT.