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# Copyright 2013 The Chromium Authors. All rights reserved.
# Use of this source code is governed by a BSD-style license that can be
# found in the LICENSE file.
import hardware_accelerated_feature_expectations as expectations
from telemetry import benchmark
from telemetry.page import page as page_module
from telemetry.page import page_set
from telemetry.page import page_test
test_harness_script = r"""
function VerifyHardwareAccelerated(feature) {
feature += ': '
var list = document.querySelector('.feature-status-list');
for (var i=0; i < list.childElementCount; i++) {
var span_list = list.children[i].getElementsByTagName('span');
var feature_str = span_list[0].textContent;
var value_str = span_list[1].textContent;
if ((feature_str == feature) &&
(value_str == 'Hardware accelerated')) {
return true;
}
}
return false;
};
""";
class _HardwareAcceleratedFeatureValidator(page_test.PageTest):
def ValidateAndMeasurePage(self, page, tab, results):
feature = page.feature
if not tab.EvaluateJavaScript('VerifyHardwareAccelerated("%s")' % feature):
print 'Test failed. Printing page contents:'
print tab.EvaluateJavaScript('document.body.innerHTML')
raise page_test.Failure('%s not hardware accelerated' % feature)
def safe_feature_name(feature):
return feature.lower().replace(' ', '_')
class ChromeGpuPage(page_module.Page):
def __init__(self, page_set, feature):
super(ChromeGpuPage, self).__init__(
url='chrome://gpu', page_set=page_set, base_dir=page_set.base_dir,
name=('HardwareAcceleratedFeature.%s_accelerated' %
safe_feature_name(feature)))
self.feature = feature
self.script_to_evaluate_on_commit = test_harness_script
class HardwareAcceleratedFeature(benchmark.Benchmark):
"""Tests GPU acceleration is reported as active for various features"""
test = _HardwareAcceleratedFeatureValidator
@classmethod
def Name(cls):
return 'hardware_accelerated_feature'
def CreateExpectations(self):
return expectations.HardwareAcceleratedFeatureExpectations()
def CreatePageSet(self, options):
features = ['WebGL', 'Canvas']
ps = page_set.PageSet(user_agent_type='desktop', file_path='')
for feature in features:
ps.AddUserStory(ChromeGpuPage(page_set=ps, feature=feature))
return ps
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