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      1 # Copyright (c) 2013 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 fnmatch
      6 import logging
      7 import os
      8 
      9 from autotest_lib.client.bin import test, utils
     10 from autotest_lib.client.common_lib import error
     11 from autotest_lib.client.common_lib.cros import chrome
     12 from autotest_lib.client.cros.video import device_capability
     13 from autotest_lib.client.cros.video import helper_logger
     14 
     15 WAIT_TIMEOUT_S = 60
     16 
     17 class video_VideoSeek(test.test):
     18     """This test verifies video seek works in Chrome."""
     19     version = 1
     20 
     21     def is_skipping_test(self, codec, is_switchres):
     22         """Determine whether this test should skip.
     23 
     24         @param codec: the codec to be tested, ex. 'vp8', 'vp9', 'h264'.
     25         @param is_switchres: bool, True if using switch resolution video.
     26         """
     27         blacklist = [
     28                 # (board, codec, is_switchres); None if don't care.
     29 
     30                 # "board" supports Unix shell-type wildcards
     31 
     32                 # Disable vp8 switchres for nyan devices temporarily due to:
     33                 # crbug/699260
     34                 ('nyan', 'vp8', True), ('nyan_*', 'vp8', True)
     35         ]
     36 
     37         board = utils.get_current_board()
     38 
     39         for entry in blacklist:
     40             if ((entry[0] is None or fnmatch.fnmatch(board, entry[0])) and
     41                 (entry[1] is None or codec == entry[1]) and
     42                 (entry[2] is None or is_switchres == entry[2])):
     43                 return True
     44 
     45         return False
     46 
     47 
     48     @helper_logger.video_log_wrapper
     49     def run_once(self, codec, is_switchres, video, capability):
     50         """Tests whether video seek works by random seeks forward and backward.
     51 
     52         @param codec: the codec to be tested, ex. 'vp8', 'vp9', 'h264'.
     53         @param is_switchres: bool, True if using switch resolution video.
     54         @param video: Sample video file to be seeked in Chrome.
     55         @param capability: The capability required for executing the test.
     56         """
     57         if self.is_skipping_test(codec, is_switchres):
     58             logging.info('Skipping test run on this board.')
     59             return  # return immediately to pass this test
     60 
     61         device_capability.DeviceCapability().ensure_capability(capability)
     62 
     63         with chrome.Chrome(
     64                 extra_browser_args=helper_logger.chrome_vmodule_flag(),
     65                 init_network_controller=True) as cr:
     66             cr.browser.platform.SetHTTPServerDirectories(self.bindir)
     67             tab = cr.browser.tabs[0]
     68             tab.Navigate(cr.browser.platform.http_server.UrlOf(
     69                     os.path.join(self.bindir, 'video.html')))
     70             tab.WaitForDocumentReadyStateToBeComplete()
     71 
     72             tab.EvaluateJavaScript('loadSourceAndRunSeekTest("%s")' % video)
     73 
     74             def get_seek_test_status():
     75                 seek_test_status = tab.EvaluateJavaScript('getSeekTestStatus()')
     76                 logging.info('Seeking: %s', seek_test_status)
     77                 return seek_test_status
     78 
     79             # Wait until we get the 'pass' status, meaning the test has been
     80             # successful. Also timeout and fail the test if we stay on the same
     81             # seek for more than WAIT_TIMEOUT_S.
     82             cur_status = get_seek_test_status()
     83             while True:
     84               utils.poll_for_condition(
     85                       lambda: get_seek_test_status() != cur_status,
     86                       exception=error.TestError('Seek test is stuck and timeout'),
     87                       timeout=WAIT_TIMEOUT_S,
     88                       sleep_interval=1)
     89               cur_status = get_seek_test_status()
     90               if cur_status == 'pass': break
     91