Use a mocked compositor for unit tests

chrome/test/base/chrome_test_suite.cc

 // Copyright (c) 2011 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 "chrome/test/base/chrome_test_suite.h"
 
 #include "base/command_line.h"
 #include "base/file_util.h"
 #include "base/mac/scoped_nsautorelease_pool.h"
 #include "base/memory/ref_counted.h"
@@ skipping 10 matching lines @@
 #include "chrome/common/url_constants.h"
 #include "chrome/test/base/testing_browser_process.h"
 #include "content/common/content_paths.h"
 #include "net/base/mock_host_resolver.h"
 #include "net/base/net_errors.h"
 #include "net/base/net_util.h"
 #include "testing/gtest/include/gtest/gtest.h"
 #include "ui/base/resource/resource_bundle.h"
 #include "ui/base/ui_base_paths.h"
 
+#if defined(VIEWS_COMPOSITOR)
+#include "ui/gfx/compositor/compositor.h"
+#include "ui/gfx/compositor/test_compositor.h"
+#endif
+
 #if defined(TOOLKIT_VIEWS)
 #include "views/view.h"
 #endif
 
+#if defined(OS_LINUX)
+#include "ui/gfx/gl/gl_switches.h"
+#endif
+
 #if defined(OS_MACOSX)
 #include "base/mac/mac_util.h"
 #include "content/common/chrome_application_mac.h"
 #endif
 
 #if defined(OS_POSIX)
 #include "base/shared_memory.h"
 #endif
 
 namespace {
@@ skipping 111 matching lines @@
     : base::TestSuite(argc, argv) {
 }
 
 ChromeTestSuite::~ChromeTestSuite() {
 }
 
 void ChromeTestSuite::Initialize() {
 #if defined(OS_MACOSX)
   chrome_application_mac::RegisterCrApp();
 #endif
+#if defined(OS_LINUX)

[sky, 2011/10/14 20:52:41]

#elif

[danakj, 2011/10/17 14:52:13]

Done.

+  // trybots don't have DesktopGL
+  EXPECT_TRUE(!CommandLine::ForCurrentProcess()->HasSwitch(switches::kUseGL));
+  CommandLine::ForCurrentProcess()->AppendSwitchASCII(
+      switches::kUseGL, gfx::kGLImplementationOSMesaName);
+#endif
 
   base::mac::ScopedNSAutoreleasePool autorelease_pool;
 
   base::TestSuite::Initialize();
 
   chrome::RegisterChromeSchemes();
 
   chrome::RegisterPathProvider();
   content::RegisterPathProvider();
   ui::RegisterPathProvider();
 
   if (!browser_dir_.empty()) {
     PathService::Override(base::DIR_EXE, browser_dir_);
     PathService::Override(base::DIR_MODULE, browser_dir_);
   }
 
 #if defined(OS_MACOSX)
   // Look in the framework bundle for resources.
   FilePath path;
   PathService::Get(base::DIR_EXE, &path);
   path = path.Append(chrome::kFrameworkName);
   base::mac::SetOverrideAppBundlePath(path);
 #endif
 
+#if defined(VIEWS_COMPOSITOR)
+    // Use a mock compositor that noops draws.
+    ui::Compositor::set_compositor_factory_for_testing(
+        ui::TestCompositor::Create);
+#endif
+
   // Force unittests to run using en-US so if we test against string
   // output, it'll pass regardless of the system language.
   ResourceBundle::InitSharedInstance("en-US");
   FilePath resources_pack_path;
   PathService::Get(base::DIR_MODULE, &resources_pack_path);
   resources_pack_path =
       resources_pack_path.Append(FILE_PATH_LITERAL("resources.pak"));
   ResourceBundle::AddDataPackToSharedInstance(resources_pack_path);
 
-#if defined(TOOLKIT_VIEWS) && defined(OS_LINUX)
-  // Turn of GPU compositing in browser during unit tests.
-  views::View::set_use_acceleration_when_possible(false);
-#endif
-
   stats_filename_ = base::StringPrintf("unit_tests-%d",
                                        base::GetCurrentProcId());
   RemoveSharedMemoryFile(stats_filename_);
   stats_table_.reset(new base::StatsTable(stats_filename_, 20, 200));
   base::StatsTable::set_current(stats_table_.get());
 
   testing::TestEventListeners& listeners =
       testing::UnitTest::GetInstance()->listeners();
   listeners.Append(new ChromeTestSuiteInitializer);
 }
 
 void ChromeTestSuite::Shutdown() {
   ResourceBundle::CleanupSharedInstance();
 
 #if defined(OS_MACOSX)
   base::mac::SetOverrideAppBundle(NULL);
 #endif
 
   base::StatsTable::set_current(NULL);
   stats_table_.reset();
   RemoveSharedMemoryFile(stats_filename_);
 
   base::TestSuite::Shutdown();
 }