• Home
  • Line#
  • Scopes#
  • Navigate#
  • Raw
  • Download
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
5import cloud_storage_test_base
6import optparse
7import page_sets
8
9
10test_harness_script = r"""
11  var domAutomationController = {};
12  domAutomationController._succeeded = false;
13  domAutomationController._finished = false;
14
15  domAutomationController.setAutomationId = function(id) {}
16  domAutomationController.send = function(msg) {
17    domAutomationController._finished = true;
18    if (msg.toLowerCase() == "success")
19      domAutomationController._succeeded = true;
20    else
21      domAutomationController._succeeded = false;
22  }
23
24  window.domAutomationController = domAutomationController;
25"""
26
27def _DidTestSucceed(tab):
28  return tab.EvaluateJavaScript('domAutomationController._succeeded')
29
30class _GpuRasterizationValidator(cloud_storage_test_base.ValidatorBase):
31  def CustomizeBrowserOptions(self, options):
32    options.AppendExtraBrowserArgs(['--enable-threaded-compositing',
33                                    '--enable-impl-side-painting',
34                                    '--force-gpu-rasterization',
35                                    '--enable-gpu-benchmarking'])
36
37  def ValidateAndMeasurePage(self, page, tab, results):
38    if not _DidTestSucceed(tab):
39      raise page_test.Failure('Page indicated a failure')
40
41    if not hasattr(page, 'expectations') or not page.expectations:
42      raise page_test.Failure('Expectations not specified')
43
44    if not tab.screenshot_supported:
45      raise page_test.Failure('Browser does not support screenshot capture')
46
47    screenshot = tab.Screenshot()
48    if not screenshot:
49      raise page_test.Failure('Could not capture screenshot')
50
51    device_pixel_ratio = tab.EvaluateJavaScript('window.devicePixelRatio')
52    if hasattr(page, 'test_rect'):
53      test_rect = [int(x * device_pixel_ratio) for x in page.test_rect]
54      screenshot = screenshot.Crop(
55          test_rect[0], test_rect[1],
56          test_rect[2], test_rect[3])
57
58    self._ValidateScreenshotSamples(
59        page.display_name,
60        screenshot,
61        page.expectations,
62        device_pixel_ratio)
63
64
65class GpuRasterization(cloud_storage_test_base.TestBase):
66  """Tests that GPU rasterization produces valid content"""
67  test = _GpuRasterizationValidator
68
69  def CreatePageSet(self, options):
70    page_set = page_sets.GpuRasterizationTestsPageSet()
71    for page in page_set.pages:
72      page.script_to_evaluate_on_commit = test_harness_script
73    return page_set
74