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      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 AUTHOR = 'samueltan, ejcaruso'
      6 NAME = 'network_WiFi_ReconnectInDarkResume.Stress'
      7 TIME = 'MEDIUM'
      8 TEST_TYPE = 'Server'
      9 DEPENDENCIES = 'servo, wificell, lucidsleep'
     10 ATTRIBUTES = 'suite:wifi_correctness_cros_core, suite:wifi_lucidsleep'
     11 SUITE = 'wifi_correctness_cros_core, wifi_lucidsleep'
     12 
     13 DOC = """
     14 This test verifies that the DUT successfully reconnects to a network in dark
     15 resume after getting disconnected from that same network while suspended.
     16 This test simulates the cases where multiple disconnect and SSID appearance
     17 events take place over a single period of suspension. The test is conducted as
     18 follows:
     19 
     20 1) AP ("AP 1") is brought up, and DUT connects to it
     21 2) AP 1 is brought down, disconnecting the DUT from it
     22 3) Another AP ("AP 2") is brought up, and DUT connects to it
     23 4) DUT suspends while connected to AP 2
     24 5) AP 2 is brought down, disconnecting the DUT from it while suspended
     25 6) AP 2 is brought up again
     26 7) Repeat steps 5-6 another 4 times (for 5 total iterations)
     27 8) The DUT is woken from suspend
     28 9) Verify that the DUT is connected to AP 2 upon resuming from suspend
     29 
     30 We verify the connectivity status of the DUT on resume by parsing shill logs,
     31 since the delays involved in waking a DUT from suspend using autotest framework
     32 make real-time checks inaccurate.
     33 
     34 Note: this test suspends the DUT for long periods of time, which may lead to
     35 flakiness if the ssh connection from the autotest host to the DUT has a
     36 ServerAliveInterval setting that is too low (i.e. less than the total suspend
     37 time). This test was verified stable with the ServerAliveInterval set to 900.
     38 """
     39 
     40 from autotest_lib.client.common_lib.cros.network import xmlrpc_datatypes
     41 from autotest_lib.client.common_lib.cros.network import xmlrpc_security_types
     42 from autotest_lib.server.cros.network import hostap_config
     43 from autotest_lib.server import utils
     44 
     45 args_dict = utils.args_to_dict(args)
     46 servo_args = hosts.CrosHost.get_servo_arguments(args_dict)
     47 
     48 def run(machine):
     49     host = hosts.create_host(machine, servo_args=servo_args)
     50     job.run_test('network_WiFi_ReconnectInDarkResume',
     51                  host=host,
     52                  tag=NAME.split('.')[1],
     53                  disconnect_before_suspend=False,
     54                  reconnect_to_same_ap=True,
     55                  num_iterations=5,
     56                  raw_cmdline_args=args)
     57 
     58 parallel_simple(run, machines)
     59