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      1 #!/usr/bin/env python
      2 # Copyright (c) 2012 The Chromium Authors. All rights reserved.
      3 # Use of this source code is governed by a BSD-style license that can be
      4 # found in the LICENSE file.
      5 
      6 """Scrubbing performance test for <video>.
      7 
      8 Measures the times to scrub video and audio files. Scrubbing is simulated by
      9 having consecutive small seeks performed. The test measures both forward and
     10 backward scrubbing.
     11 """
     12 
     13 import os
     14 
     15 import pyauto_media
     16 import pyauto_utils
     17 import pyauto
     18 
     19 # HTML test path; relative to src/chrome/test/data.
     20 _TEST_HTML_PATH = os.path.join('media', 'html', 'media_scrub.html')
     21 
     22 # Path under data path for test files.
     23 _TEST_MEDIA_PATH = os.path.join('media', 'avperf')
     24 
     25 # The media files used for testing.
     26 _TEST_MEDIA = [os.path.join('tulip', name) for name in
     27                ['tulip2.webm', 'tulip2.wav', 'tulip2.ogv', 'tulip2.ogg',
     28                 'tulip2.mp4', 'tulip2.mp3', 'tulip2.m4a']]
     29 
     30 
     31 class MediaScrubPerfTest(pyauto.PyUITest):
     32   """PyAuto test container.  See file doc string for more information."""
     33 
     34   def testMediaScrubPerformance(self):
     35     """Launches HTML test which runs the scrub test and records performance."""
     36     self.NavigateToURL(self.GetFileURLForDataPath(_TEST_HTML_PATH))
     37 
     38     for media in _TEST_MEDIA:
     39       file_name = self.GetFileURLForDataPath(
     40           os.path.join(_TEST_MEDIA_PATH, media))
     41 
     42       # Some tests take more than the default PyAuto calls timeout, so we start
     43       # each test and wait until 'testDone' flag is set by the test.
     44       self.CallJavascriptFunc('startTest', [file_name])
     45 
     46       if not self.WaitUntil(self.GetDOMValue, args=['testDone'],
     47                             retry_sleep=5, timeout=180, debug=False):
     48         error_msg = 'Scrubbing tests timed out.'
     49       else:
     50         error_msg = self.GetDOMValue('errorMsg')
     51       if error_msg:
     52         self.fail('Error while running the test: %s' % error_msg)
     53 
     54       forward_scrub_time = float(self.GetDOMValue('forwardScrubTime'))
     55       backward_scrub_time = float(self.GetDOMValue('backwardScrubTime'))
     56       mixed_scrub_time = float(self.GetDOMValue('mixedScrubTime'))
     57       pyauto_utils.PrintPerfResult('scrubbing', os.path.basename(file_name) +
     58                                    '_forward', forward_scrub_time, 'ms')
     59       pyauto_utils.PrintPerfResult('scrubbing', os.path.basename(file_name) +
     60                                    '_backward', backward_scrub_time, 'ms')
     61       pyauto_utils.PrintPerfResult('scrubbing', os.path.basename(file_name) +
     62                                    '_mixed', mixed_scrub_time, 'ms')
     63 
     64 
     65 if __name__ == '__main__':
     66   pyauto_media.Main()
     67