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 hardware_accelerated_feature_expectations as expectations
   5
   6 from telemetry import benchmark
   7 from telemetry.page import page as page_module
   8 from telemetry.page import page_set
   9 from telemetry.page import page_test
  10
  11 test_harness_script = r"""
  12   function VerifyHardwareAccelerated(feature) {
  13     feature += ': '
  14     var list = document.querySelector('.feature-status-list');
  15     for (var i=0; i < list.childElementCount; i++) {
  16       var span_list = list.children[i].getElementsByTagName('span');
  17       var feature_str = span_list[0].textContent;
  18       var value_str = span_list[1].textContent;
  19       if ((feature_str == feature) &&
  20           (value_str == 'Hardware accelerated')) {
  21         return true;
  22       }
  23     }
  24     return false;
  25   };
  26 """;
  27
  28 class _HardwareAcceleratedFeatureValidator(page_test.PageTest):
  29   def ValidateAndMeasurePage(self, page, tab, results):
  30     feature = page.feature
  31     if not tab.EvaluateJavaScript('VerifyHardwareAccelerated("%s")' % feature):
  32       print 'Test failed. Printing page contents:'
  33       print tab.EvaluateJavaScript('document.body.innerHTML')
  34       raise page_test.Failure('%s not hardware accelerated' % feature)
  35
  36 def safe_feature_name(feature):
  37   return feature.lower().replace(' ', '_')
  38
  39 class ChromeGpuPage(page_module.Page):
  40   def __init__(self, page_set, feature):
  41     super(ChromeGpuPage, self).__init__(
  42       url='chrome://gpu', page_set=page_set, base_dir=page_set.base_dir,
  43       name=('HardwareAcceleratedFeature.%s_accelerated' %
  44             safe_feature_name(feature)))
  45     self.feature = feature
  46     self.script_to_evaluate_on_commit = test_harness_script
  47
  48 class HardwareAcceleratedFeature(benchmark.Benchmark):
  49   """Tests GPU acceleration is reported as active for various features"""
  50   test = _HardwareAcceleratedFeatureValidator
  51
  52   def CreateExpectations(self):
  53     return expectations.HardwareAcceleratedFeatureExpectations()
  54
  55   def CreatePageSet(self, options):
  56     features = ['WebGL', 'Canvas']
  57
  58     ps = page_set.PageSet(user_agent_type='desktop', file_path='')
  59
  60     for feature in features:
  61       ps.AddPage(ChromeGpuPage(page_set=ps, feature=feature))
  62     return ps