1 # Copyright 2015 The Chromium OS Authors. All rights reserved. 2 # Use of this source code is governed by a BSD-style license that can be 3 # found in the LICENSE file. 4 5 import logging 6 import time 7 8 from autotest_lib.client.common_lib import error 9 from autotest_lib.server.cros.network import hostap_config 10 from autotest_lib.server.cros.network import lucid_sleep_test_base 11 from autotest_lib.server.cros.network import wifi_client 12 13 class network_WiFi_FastReconnectInDarkResume( 14 lucid_sleep_test_base.LucidSleepTestBase): 15 """ 16 Test that we can reconnect quickly (within the span of one dark resume) 17 if we are disconnected during suspend but the AP is still up. 18 """ 19 20 version = 1 21 22 def run_once(self): 23 """Body of the test""" 24 self.configure_and_connect_to_ap(hostap_config.HostapConfig(channel=1)) 25 client = self.context.client 26 client_mac = client.wifi_mac 27 router = self.context.router 28 29 # Enable the dark connect feature in shill. 30 with client.wake_on_wifi_features(wifi_client.WAKE_ON_WIFI_DARKCONNECT): 31 logging.info('Set up WoWLAN') 32 prev_dark_resume_count = self.dr_utils.count_dark_resumes() 33 34 with self.dr_utils.suspend(): 35 # Wait for suspend actions to finish. 36 time.sleep(wifi_client.SUSPEND_WAIT_TIME_SECONDS) 37 38 logging.info('Deauthenticating the DUT') 39 # A deauth packet should instantaneously disconnect the DUT 40 # from the AP without bringing the AP down. 41 router.deauth_client(client_mac) 42 43 # Wait for the DUT to receive the disconnect, wake in 44 # dark resume, reconnect, then suspend again. 45 time.sleep(wifi_client.DISCONNECT_WAIT_TIME_SECONDS + 46 wifi_client.DARK_RESUME_WAIT_TIME_SECONDS) 47 48 client.check_connected_on_last_resume() 49 dark_resume_count = (self.dr_utils.count_dark_resumes() - 50 prev_dark_resume_count) 51 if dark_resume_count != 1: 52 # If there was more than 1 dark resume, the DUT might not have 53 # reconnected on the dark resume triggered by the disconnect. 54 raise error.TestFail('Expected exactly one dark resume') 55
