Port hw_accel_feature and screenshot_sync tests to new harness.

content/test/gpu/gpu_tests/hardware_accelerated_feature_integration_test.py

+# Copyright 2017 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.
+
+from gpu_tests import gpu_integration_test
+import gpu_tests.hardware_accelerated_feature_expectations as hw_expectations
+
+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;
+  };
+"""
+
+def safe_feature_name(feature):
+  return feature.lower().replace(' ', '_')
+
+class HardwareAcceleratedFeatureIntegrationTest(
+    gpu_integration_test.GpuIntegrationTest):
+  """Tests GPU acceleration is reported as active for various features."""
+
+  @classmethod
+  def Name(cls):
+    """The name by which this test is invoked on the command line."""
+    return 'hardware_accelerated_feature'
+
+  @classmethod
+  def setUpClass(cls):
+    super(cls, HardwareAcceleratedFeatureIntegrationTest).setUpClass()
+    cls.SetBrowserOptions(cls._finder_options)
+    cls.StartBrowser()
+    cls.SetStaticServerDirs([])
+
+  @classmethod
+  def _CreateExpectations(cls):
+    return hw_expectations.HardwareAcceleratedFeatureExpectations()
+
+  def _Navigate(self, url):
+    # It's crucial to use the action_runner, rather than the tab's
+    # Navigate method directly. It waits for the document ready state
+    # to become interactive or better, avoiding critical race
+    # conditions.
+    self.tab.action_runner.Navigate(
+      url, script_to_evaluate_on_commit=test_harness_script)
+
+  @classmethod
+  def GenerateGpuTests(cls, options):
+    tests = ('WebGL', 'Canvas')
+    for feature in tests:
+      yield('HardwareAcceleratedFeature_%s_accelerated' %
+            safe_feature_name(feature),
+            'chrome://gpu',
+            (feature))
+
+  def RunActualGpuTest(self, test_path, *args):
+    feature = args[0]
+    self._Navigate(test_path)
+    tab = self.tab
+    if not tab.EvaluateJavaScript('VerifyHardwareAccelerated("%s")' % feature):
+      print 'Test failed. Printing page contents:'
+      print tab.EvaluateJavaScript('document.body.innerHTML')
+      self.fail('%s not hardware accelerated' % feature)