blob: d6eef00c88caa42806064900e948fb0de7c4b3c7 [file] [log] [blame]
# Copyright (c) 2018 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 datetime
import logging
import random
from autotest_lib.client.bin import test
from autotest_lib.client.common_lib import error
from import interface
from autotest_lib.client.cros.power import sys_power
class network_WiFiResume(test.test):
Ensure wireless interface comes up after suspend-resume.
version = 1
def _get_wifi_dev(self):
wlan_ifs = [nic for nic in interface.get_interfaces()
if nic.is_wifi_device()]
if wlan_ifs:
return wlan_ifs[0].name
return None
# Default suspend values are for smoke test that expects to run in <10s
def _suspend_to_ram(self, min_secs_suspend=2, max_secs_suspend=7):
secs_to_suspend = (random.randint(min_secs_suspend, max_secs_suspend))'Scheduling wakeup in %d seconds.\n', secs_to_suspend)
def run_once(self, wifi_timeout=2, dev=None):
'''Check that WiFi interface is available after a resume
@param dev: device (eg 'wlan0') to use for wifi tests.
autodetected if unset.
@param wifi_timeout: number of seconds within which the interface must
come up after a suspend/resume cycle.
if dev is None:
dev = self._get_wifi_dev()
if dev is None:
raise error.TestError('No wifi device supplied to check for'
'or found on system')
start_time =
deadline = start_time + datetime.timedelta(seconds=wifi_timeout)
found_dev = None
while (not found_dev) and (deadline >
found_dev = self._get_wifi_dev()
if found_dev == dev:
delay = - start_time'Found %s about %d ms after resume'%
(dev, int(delay.total_seconds()*1000)))
elif found_dev is not None:
logging.error('Found %s on resume, was %s before suspend' %
(found_dev, dev))
if found_dev != dev:
delay = - start_time
raise error.TestFail('Did not find %s after %d ms' %
(dev, int(delay.total_seconds()*1000)))