Add unit test for glsl-construct-vec-mat-index's expectations.

content/test/gpu/gpu_tests/webgl_conformance_expectations_unittest.py

+# Copyright 2015 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 os
+import unittest
+
+from telemetry.core import util
+from telemetry.testing import fakes
+
+import fake_win_amd_gpu_info
+import gpu_test_base
+import webgl_conformance_expectations
+
+import pdb

[nednguyen, 2015/09/22 20:16:54]

style nit: unused import.

Tip: in telemetry, we have tools/telemetry/pylintrc that is more restricted that
the default one.

[Ken Russell (switch to Gerrit), 2015/09/22 20:37:01]

Thanks. Fixed.
Could you tell me how to deploy this into src/content/tests/gpu? We don't have a
directory-specific PRESUBMIT.py and I don't know how to set one up.

+
+class FakeWindowsPlatform(fakes.FakePlatform):
+  @property
+  def is_host_platform(self):
+    return True
+
+  def GetDeviceTypeName(self):
+    return 'Desktop'
+
+  def GetArchName(self):
+    return 'x86_64'
+
+  def GetOSName(self):
+    return 'win'
+
+  def GetOSVersionName(self):
+    return 'win8'
+
+
+class FakePage(gpu_test_base.PageBase):
+  def __init__(self, url, expectations):
+    super(FakePage, self).__init__(
+      name=('WebglConformance.%s' %
+            url.replace('/', '_').replace('-', '_').
+            replace('\\', '_').rpartition('.')[0].replace('.', '_')),
+      url='file://' + url,
+      page_set=None,
+      shared_page_state_class=gpu_test_base.FakeGpuSharedPageState,
+      expectations=expectations)
+
+class WebGLConformanceExpectationsTest(unittest.TestCase):
+  def testGlslConstructVecMatIndexExpectationOnWin(self):
+    possible_browser = fakes.FakePossibleBrowser()
+    browser = possible_browser.Create(None)
+    browser.platform = FakeWindowsPlatform()
+    browser.returned_system_info = fakes.FakeSystemInfo(
+      gpu_dict=fake_win_amd_gpu_info.FAKE_GPU_INFO)
+    expectations = webgl_conformance_expectations.\
+                   WebGLConformanceExpectations(
+                     os.path.join(
+                       util.GetChromiumSrcDir(),
+                       'third_party', 'webgl', 'src', 'sdk', 'tests'))
+    page = FakePage(
+      'conformance/glsl/constructors/glsl-construct-vec-mat-index.html',
+      expectations)
+    expectation = expectations.GetExpectationForPage(browser, page)
+    # TODO(kbr): change this expectation back to "flaky". crbug.com/534697
+    self.assertEquals(expectation, 'fail')