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