Some extra testing for GpuDataManager.

content/browser/gpu/gpu_data_manager_impl_unittest.cc

 // Copyright (c) 2012 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.
 
 #include "base/message_loop.h"
 #include "base/run_loop.h"
 #include "content/browser/gpu/gpu_data_manager_impl.h"
 #include "content/public/browser/gpu_data_manager_observer.h"
 #include "content/public/common/gpu_info.h"
 #include "testing/gtest/include/gtest/gtest.h"
@@ skipping 148 matching lines @@
 }
 
 TEST_F(GpuDataManagerImplTest, BlacklistCard) {
   GpuDataManagerImpl* manager = new GpuDataManagerImpl();
   ASSERT_TRUE(manager);
   EXPECT_EQ(0, manager->GetBlacklistedFeatures());
   EXPECT_TRUE(manager->GpuAccessAllowed());
 
   manager->BlacklistCard();
   EXPECT_FALSE(manager->GpuAccessAllowed());
+  EXPECT_EQ(content::GPU_FEATURE_TYPE_ALL,
+            manager->GetBlacklistedFeatures());
+
+  delete manager;
+}
+
+TEST_F(GpuDataManagerImplTest, SoftwareRendering) {
+  GpuDataManagerImpl* manager = new GpuDataManagerImpl();
+  ASSERT_TRUE(manager);
+  EXPECT_EQ(0, manager->GetBlacklistedFeatures());
+  EXPECT_TRUE(manager->GpuAccessAllowed());
+
+  EXPECT_FALSE(manager->ShouldUseSoftwareRendering());
+
+  manager->BlacklistCard();

[jbauman, 2012/09/21 21:02:38]

It might also be nice to add a test (in a separate patch) where we register the
swiftshader path first, then blacklist the card, and ensure that also works.

+  EXPECT_FALSE(manager->GpuAccessAllowed());
+  EXPECT_FALSE(manager->ShouldUseSoftwareRendering());
 
   // If software rendering is enabled, even if we blacklist GPU,
   // GPU process is still allowed.
-  manager->software_rendering_ = true;
+  const FilePath test_path(FILE_PATH_LITERAL("AnyPath"));
+  manager->RegisterSwiftShaderPath(test_path);
+  EXPECT_TRUE(manager->ShouldUseSoftwareRendering());
   EXPECT_TRUE(manager->GpuAccessAllowed());
+  EXPECT_EQ(content::GPU_FEATURE_TYPE_ACCELERATED_2D_CANVAS,
+            manager->GetBlacklistedFeatures());
 
   delete manager;
 }
 
 TEST_F(GpuDataManagerImplTest, GpuInfoUpdate) {
   GpuDataManagerImpl* manager = new GpuDataManagerImpl();
   ASSERT_TRUE(manager);
 
   TestObserver observer;
   manager->AddObserver(&observer);
@@ skipping 22 matching lines @@
   content::GPUVideoMemoryUsageStats vram_stats;
   manager->UpdateVideoMemoryUsageStats(vram_stats);
 
   base::RunLoop run_loop;
   run_loop.RunUntilIdle();
   EXPECT_TRUE(observer.video_memory_usage_stats_updated());
 
   delete manager;
 }