content/test/gpu/gpu_tests/hardware_accelerated_feature.py

   1 # Copyright 2013 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 import gpu_test_base
   5 import hardware_accelerated_feature_expectations as expectations
   6
   7 from telemetry.page import page_test
   8 from telemetry.story import story_set as story_set_module
   9
  10 test_harness_script = r"""
  11   function VerifyHardwareAccelerated(feature) {
  12     feature += ': '
  13     var list = document.querySelector('.feature-status-list');
  14     for (var i=0; i < list.childElementCount; i++) {
  15       var span_list = list.children[i].getElementsByTagName('span');
  16       var feature_str = span_list[0].textContent;
  17       var value_str = span_list[1].textContent;
  18       if ((feature_str == feature) &&
  19           (value_str == 'Hardware accelerated')) {
  20         return true;
  21       }
  22     }
  23     return false;
  24   };
  25 """;
  26
  27 class HardwareAcceleratedFeatureValidator(gpu_test_base.ValidatorBase):
  28   def ValidateAndMeasurePageInner(self, page, tab, results):
  29     feature = page.feature
  30     if not tab.EvaluateJavaScript('VerifyHardwareAccelerated("%s")' % feature):
  31       print 'Test failed. Printing page contents:'
  32       print tab.EvaluateJavaScript('document.body.innerHTML')
  33       raise page_test.Failure('%s not hardware accelerated' % feature)
  34
  35 def safe_feature_name(feature):
  36   return feature.lower().replace(' ', '_')
  37
  38 class ChromeGpuPage(gpu_test_base.PageBase):
  39   def __init__(self, story_set, feature, expectations):
  40     super(ChromeGpuPage, self).__init__(
  41       url='chrome://gpu', page_set=story_set, base_dir=story_set.base_dir,
  42       name=('HardwareAcceleratedFeature.%s_accelerated' %
  43             safe_feature_name(feature)),
  44       expectations=expectations)
  45     self.feature = feature
  46     self.script_to_evaluate_on_commit = test_harness_script
  47
  48 class HardwareAcceleratedFeature(gpu_test_base.TestBase):
  49   """Tests GPU acceleration is reported as active for various features"""
  50   test = HardwareAcceleratedFeatureValidator
  51
  52   @classmethod
  53   def Name(cls):
  54     return 'hardware_accelerated_feature'
  55
  56   def _CreateExpectations(self):
  57     return expectations.HardwareAcceleratedFeatureExpectations()
  58
  59   def CreateStorySet(self, options):
  60     features = ['WebGL', 'Canvas']
  61
  62     ps = story_set_module.StorySet()
  63
  64     for feature in features:
  65       ps.AddStory(ChromeGpuPage(story_set=ps, feature=feature,
  66                                 expectations=self.GetExpectations()))
  67     return ps