Added tests to check that WebGL extensions are available.

content/test/gpu/gpu_tests/webgl_conformance_expectations.py

 # Copyright (c) 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 os
 
 from gpu_tests.gpu_test_expectations import GpuTestExpectations
 
 # See the GpuTestExpectations class for documentation.
 
 class WebGLConformanceExpectations(GpuTestExpectations):
   def __init__(self, conformance_path):
     self.conformance_path = conformance_path
     super(WebGLConformanceExpectations, self).__init__()
 
   def Fail(self, pattern, condition=None, bug=None):
     self.CheckPatternIsValid(pattern)
     GpuTestExpectations.Fail(self, pattern, condition, bug)
 
   def Skip(self, pattern, condition=None, bug=None):
     self.CheckPatternIsValid(pattern)
     GpuTestExpectations.Skip(self, pattern, condition, bug)
 
   def CheckPatternIsValid(self, pattern):
     # Look for basic wildcards.
-    if not '*' in pattern:
+    if not '*' in pattern and not 'WebglExtension.' in pattern:
       full_path = os.path.normpath(os.path.join(self.conformance_path, pattern))
       if not os.path.exists(full_path):
         raise Exception('The WebGL conformance test path specified in ' +
           'expectation does not exist: ' + full_path)
 
   def SetExpectations(self):
+    # ===================================
+    # Extension availability expectations
+    # ===================================
+    # It's expected that not all extensions will be available on all platforms.
+    # Having a test listed here is not necessarily a problem.
+
+    self.Fail('WebglExtension.EXT_color_buffer_float',
+        ['win', 'mac'])
+    self.Fail('WebglExtension.WEBGL_compressed_texture_astc',
+        ['win', 'mac', 'linux'])
+    self.Fail('WebglExtension.WEBGL_compressed_texture_atc',
+        ['win', 'mac', 'linux'])
+    self.Fail('WebglExtension.WEBGL_compressed_texture_etc1',
+        ['mac', 'linux'])
+    self.Fail('WebglExtension.WEBGL_compressed_texture_pvrtc',
+        ['win', 'mac', 'linux'])
+
+    # Extensions not available under D3D9
+    self.Fail('WebglExtension.EXT_disjoint_timer_query',
+        ['win', 'd3d9'])
+    self.Fail('WebglExtension.EXT_sRGB',
+        ['win', 'd3d9'])
+    self.Fail('WebglExtension.WEBGL_compressed_texture_etc1',
+        ['win', 'd3d9'])
+
+    self.Fail('WebglExtension.WEBGL_depth_texture',
+        ['win', 'amd', 'd3d9'])
+
+    self.Fail('WebglExtension.WEBGL_draw_buffers',
+        ['win', 'd3d9'])
+
+    # ========================
+    # Conformance expectations
+    # ========================
     # Fails on all platforms
     self.Fail('deqp/data/gles2/shaders/functions.html',
         bug=478572)
     self.Fail('deqp/data/gles2/shaders/scoping.html',
         bug=478572)
     self.Fail('conformance/extensions/ext-sRGB.html',
         bug=540900)
 
     # Remove after we roll in https://github.com/KhronosGroup/WebGL/pull/1520.
     self.Fail('conformance/extensions/oes-vertex-array-object.html',
@@ skipping 381 matching lines @@
     self.Fail('conformance/textures/misc/texture-npot.html',
         ['chromeos', ('intel', 0xa011)], bug=375554)
     self.Fail('conformance/textures/misc/texture-npot-video.html',
         ['chromeos', ('intel', 0xa011)], bug=375554)
     self.Fail('conformance/textures/misc/texture-size.html',
         ['chromeos', ('intel', 0xa011)], bug=375554)
     self.Fail('conformance/uniforms/gl-uniform-arrays.html',
         ['chromeos', ('intel', 0xa011)], bug=375554)
     self.Skip('conformance/uniforms/uniform-default-values.html',
         ['chromeos', ('intel', 0xa011)], bug=375554)