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      1 # Copyright 2018 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 functools
      6 import logging
      7 import numpy
      8 import os
      9 import time
     10 
     11 from autotest_lib.client.bin import fps_meter
     12 from autotest_lib.client.common_lib.cros import chrome
     13 from autotest_lib.client.cros import touch_playback_test_base
     14 
     15 import py_utils
     16 
     17 """ The tracing file that contains the desired mouse scrolling events. """
     18 _PLAYBACK_FILE = 'mouse_event'
     19 
     20 """ Description of the fake mouse we add to the system. """
     21 _MOUSE_DESCRIPTION = 'mouse.prop'
     22 
     23 """ List of URLs that will be used to test users gestures on. """
     24 _LIST_OF_URLS = ['https://www.youtube.com', 'https://www.cnn.com',
     25     'https://slashdot.org/']
     26 
     27 """ Separator used in fps_meter for each VSync """
     28 _SEPARATOR = ' '
     29 
     30 class platform_MouseScrollTest(
     31     touch_playback_test_base.touch_playback_test_base):
     32     """Fast scroll up and down with mouse pressure test."""
     33     version = 1
     34 
     35     def _play_events(self, event_filename):
     36         """
     37         Simulate mouse events for user scrolling.
     38 
     39         @param event_filename string string file name containing the events
     40         to play pack.
     41         """
     42         file_path = os.path.join(self.bindir, event_filename)
     43         self._blocking_playback(str(file_path), touch_type='mouse')
     44 
     45     def run_once(self):
     46         """ Runs the test once. """
     47         mouse_file = os.path.join(self.bindir, _MOUSE_DESCRIPTION)
     48         self._emulate_mouse(property_file=mouse_file)
     49 
     50         def record_fps_info(fps_data, fps_info):
     51             """ record the fps info from |fps_meter| """
     52             frame_info, frame_times = fps_info
     53             frame_info_str = ''.join(frame_info)
     54             fps_count = sum(
     55                 map(int, frame_info_str.replace(_SEPARATOR, "")))
     56             fps_data.append(fps_count)
     57 
     58         fps_data = []
     59         fps = fps_meter.FPSMeter(functools.partial(record_fps_info, fps_data))
     60         with chrome.Chrome(init_network_controller=True) as cr:
     61             for url in _LIST_OF_URLS:
     62                 tab = cr.browser.tabs.New()
     63                 tab.Navigate(url)
     64                 try:
     65                     tab.WaitForDocumentReadyStateToBeComplete(timeout=15)
     66                 except py_utils.TimeoutException:
     67                     logging.warning('Time out during loading url ' + url)
     68 
     69                 tab.Activate()
     70                 cr.browser.platform.SetHTTPServerDirectories(self.bindir)
     71                 fps.start()
     72                 self._play_events(_PLAYBACK_FILE)
     73                 fps.stop()
     74                 time.sleep(1)
     75 
     76             value = getattr(numpy, 'mean')(fps_data)
     77 
     78             self.output_perf_value(description='fps average',
     79                                    value=value,
     80                                    units='frames per second',
     81                                    higher_is_better=True)
     82