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      1 # Copyright (c) 2012 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 time
      6 
      7 from autotest_lib.client.bin import test
      8 from autotest_lib.client.common_lib.cros import chrome
      9 from autotest_lib.client.cros import power_suspend, sys_power
     10 
     11 
     12 class power_UiResume(test.test):
     13     """
     14     Suspend a logged in system by sending a request to power manager via dbus.
     15 
     16     This test waits quite a bit after logging in and before suspending.
     17     Therefore it verifies suspend/resume functionality for an idle system. For
     18     stress-testing suspend/resume in parallel with other things going on, see
     19     power_SuspendStress.
     20 
     21     """
     22     version = 2
     23 
     24     def initialize(self):
     25         self._suspender = power_suspend.Suspender(self.resultsdir,
     26                 method=sys_power.do_suspend, throw=True)
     27 
     28 
     29     def run_once(self):
     30         # Some idle time before initiating suspend-to-ram
     31         with chrome.Chrome():
     32             time.sleep(10)
     33             results = self._suspender.suspend(0)
     34             self.write_perf_keyval(results)
     35