tools/perf/measurements/task_execution_time_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 measurements import task_execution_time
   6 from telemetry.core import wpr_modes
   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
  12 class TestTaskExecutionTimePage(page_module.Page):
  13   def __init__(self, page_set, base_dir):
  14     super(TestTaskExecutionTimePage, self).__init__(
  15         'file://blank.html', page_set, base_dir)
  16
  17   def RunPageInteractions(self, action_runner):
  18     interaction = action_runner.BeginGestureInteraction(
  19         'ScrollAction', is_smooth=True)
  20     action_runner.ScrollPage()
  21     interaction.End()
  22
  23
  24 class TaskExecutionTimeUnitTest(page_test_test_case.PageTestTestCase):
  25   def setUp(self):
  26     self._options = options_for_unittests.GetCopy()
  27     self._options.browser_options.wpr_mode = wpr_modes.WPR_OFF
  28
  29   def testCorrectNumberOfResultsReturned(self):
  30     ps = self.CreateEmptyPageSet()
  31     ps.AddUserStory(TestTaskExecutionTimePage(ps, ps.base_dir))
  32     measurement = task_execution_time.TaskExecutionTime()
  33
  34     results = self.RunMeasurement(measurement, ps, options=self._options)
  35
  36     self.assertEquals(
  37         task_execution_time.TaskExecutionTime.GetExpectedResultCount(),
  38         len(results.all_page_specific_values))
  39
  40   def testResultsAreDecreasing(self):
  41     ps = self.CreateEmptyPageSet()
  42     ps.AddUserStory(TestTaskExecutionTimePage(ps, ps.base_dir))
  43     measurement = task_execution_time.TaskExecutionTime()
  44
  45     results = self.RunMeasurement(measurement, ps, options=self._options)
  46
  47     for first, second in zip(
  48         results.all_page_specific_values, results.all_page_specific_values[1:]):
  49       self.assertGreaterEqual(first.value, second.value)