tools/perf/measurements/repaint_unittest.py

   1 # Copyright 2014 The Chromium 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 from telemetry.core import wpr_modes
   6 from telemetry import decorators
   7 from telemetry.page import page as page_module
   8 from telemetry.unittest_util import options_for_unittests
   9 from telemetry.unittest_util import page_test_test_case
  10
  11 from measurements import repaint
  12
  13
  14 class TestRepaintPage(page_module.Page):
  15   def __init__(self, page_set, base_dir):
  16     super(TestRepaintPage, self).__init__('file://blank.html',
  17                                           page_set, base_dir)
  18
  19   def RunPageInteractions(self, action_runner):
  20     action_runner.RepaintContinuously(seconds=2)
  21
  22
  23 class RepaintUnitTest(page_test_test_case.PageTestTestCase):
  24   """Smoke test for repaint measurement
  25
  26      Runs repaint measurement on a simple page and verifies
  27      that all metrics were added to the results. The test is purely functional,
  28      i.e. it only checks if the metrics are present and non-zero.
  29   """
  30
  31   def setUp(self):
  32     self._options = options_for_unittests.GetCopy()
  33     self._options.browser_options.wpr_mode = wpr_modes.WPR_OFF
  34
  35   def testRepaint(self):
  36     ps = self.CreateEmptyPageSet()
  37     ps.AddUserStory(TestRepaintPage(ps, ps.base_dir))
  38     measurement = repaint.Repaint()
  39     results = self.RunMeasurement(measurement, ps, options=self._options)
  40     self.assertEquals(0, len(results.failures))
  41
  42     frame_times = results.FindAllPageSpecificValuesNamed('frame_times')
  43     self.assertEquals(len(frame_times), 1)
  44     self.assertGreater(frame_times[0].GetRepresentativeNumber(), 0)
  45
  46     mean_frame_time = results.FindAllPageSpecificValuesNamed('mean_frame_time')
  47     self.assertEquals(len(mean_frame_time), 1)
  48     self.assertGreater(mean_frame_time[0].GetRepresentativeNumber(), 0)
  49
  50     frame_time_discrepancy = results.FindAllPageSpecificValuesNamed(
  51         'frame_time_discrepancy')
  52     self.assertEquals(len(frame_time_discrepancy), 1)
  53     self.assertGreater(frame_time_discrepancy[0].GetRepresentativeNumber(), 0)
  54
  55     percentage_smooth = results.FindAllPageSpecificValuesNamed(
  56         'percentage_smooth')
  57     self.assertEquals(len(percentage_smooth), 1)
  58     self.assertGreaterEqual(percentage_smooth[0].GetRepresentativeNumber(), 0)
  59
  60   @decorators.Disabled('android')
  61   def testCleanUpTrace(self):
  62     self.TestTracingCleanedUp(repaint.Repaint, self._options)