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      1 # Copyright 2016 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 datetime
      6 import logging
      7 import time
      8 from autotest_lib.client.common_lib.cros import arc
      9 from autotest_lib.client.common_lib.cros import chrome
     10 from autotest_lib.client.bin import test
     11 
     12 
     13 class cheets_StartAndroid(test.test):
     14     """Helper to run Android's CTS on autotest.
     15 
     16     Android CTS needs a running Android, which depends on a logged in ChromeOS
     17     user. This helper class logs in to ChromeOS and waits for Android boot
     18     complete.
     19 
     20     We do not log out, and the machine will be rebooted after test.
     21     """
     22     version = 1
     23 
     24     def cleanup(self):
     25         if hasattr(self, '_run_times'):
     26             logging.debug("Times to start Chrome and Android: %s",
     27                           self._run_times)
     28             # Report the first, second and last start times to perf dashboard.
     29             for index in [0, 1, len(self._run_times) - 1]:
     30                 if index >= len(self._run_times):
     31                     continue
     32                 self.output_perf_value(
     33                     description='Time_to_Start_Chrome_and_Android-%d' % (
     34                         index + 1),
     35                     value=self._run_times[index],
     36                     units='seconds',
     37                     higher_is_better=False,
     38                     replace_existing_values=True,
     39                     graph="Time_to_start_Chrome_and_Android"
     40                 )
     41 
     42     def run_once(self, count=None, dont_override_profile=False):
     43         if count:
     44             # Run stress test by logging in and starting ARC several times.
     45             # Each iteration is about 15s on Samus.
     46             self._run_times = []
     47             for i in range(count):
     48                 logging.info('cheets_StartAndroid iteration %d', i)
     49 
     50                 start = datetime.datetime.utcnow()
     51                 chrome_obj = chrome.Chrome(
     52                     arc_mode = arc.arc_common.ARC_MODE_ENABLED,
     53                     dont_override_profile=dont_override_profile)
     54                 elapsed_time = (datetime.datetime.utcnow() - start
     55                        ).total_seconds()
     56 
     57                 # 2 seconds for chrome to settle down before logging out
     58                 time.sleep(2)
     59                 chrome_obj.close()
     60 
     61                 self._run_times.append(elapsed_time)
     62         else:
     63             # Utility used by server tests to login. We do not log out, and
     64             # ensure the machine will be rebooted after test.
     65             try:
     66                 self.chrome = chrome.Chrome(
     67                             dont_override_profile=dont_override_profile,
     68                             arc_mode=arc.arc_common.ARC_MODE_ENABLED)
     69             except:
     70                 # We are going to paper over some failures here. Notice these
     71                 # should still be detected by regularly running
     72                 # cheets_StartAndroid.stress.
     73                 logging.error('Could not start Chrome. Retrying soon...')
     74                 # Give system a chance to calm down.
     75                 time.sleep(20)
     76                 self.chrome = chrome.Chrome(
     77                             dont_override_profile=dont_override_profile,
     78                             arc_mode=arc.arc_common.ARC_MODE_ENABLED,
     79                             num_tries=3)
     80