Readability review.

remoting/host/host_extension_session_manager_unittest.cc

 // Copyright 2014 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/strings/string_util.h"
 #include "remoting/codec/video_encoder.h"
 #include "remoting/host/fake_host_extension.h"
 #include "remoting/host/host_extension_session_manager.h"
 #include "remoting/host/host_mock_objects.h"
 #include "remoting/proto/control.pb.h"
 #include "remoting/protocol/protocol_mock_objects.h"
 #include "testing/gtest/include/gtest/gtest.h"
 #include "third_party/webrtc/modules/desktop_capture/desktop_capturer.h"
 
 namespace remoting {
 
 class HostExtensionSessionManagerTest : public testing::Test {
  public:
   HostExtensionSessionManagerTest()
       : extension1_("ext1", "cap1"),
-        extension2_("ext2", ""),
+        extension2_("ext2", std::string()),
         extension3_("ext3", "cap3") {
     extensions_.push_back(&extension1_);
     extensions_.push_back(&extension2_);
     extensions_.push_back(&extension3_);
   }
   virtual ~HostExtensionSessionManagerTest() {}
 
  protected:
   // Fake HostExtensions for testing.
   FakeExtension extension1_;
   FakeExtension extension2_;
   FakeExtension extension3_;
-  std::vector<HostExtension*> extensions_;
+  HostExtensionSessionManager::HostExtensions extensions_;
 
   // Mocks of interfaces provided by ClientSession.
   MockClientSessionControl client_session_control_;
   protocol::MockClientStub client_stub_;
+
+  DISALLOW_COPY_AND_ASSIGN(HostExtensionSessionManagerTest);
 };
 
-// Verifies that messages are passed to be handled by the correct extension.
+// Verifies that messages are handled by the correct extension.
 TEST_F(HostExtensionSessionManagerTest, ExtensionMessages_MessageHandled) {
   HostExtensionSessionManager extension_manager(extensions_,
                                                 &client_session_control_);
   extension_manager.OnNegotiatedCapabilities(
       &client_stub_, extension_manager.GetCapabilities());
 
   protocol::ExtensionMessage message;
   message.set_type("ext2");
   extension_manager.OnExtensionMessage(message);
 
@@ skipping 18 matching lines @@
   EXPECT_FALSE(extension2_.has_handled_message());
   EXPECT_FALSE(extension3_.has_handled_message());
 }
 
 // Verifies that the correct set of capabilities are reported to the client,
 // based on the registered extensions.
 TEST_F(HostExtensionSessionManagerTest, ExtensionCapabilities_AreReported) {
   HostExtensionSessionManager extension_manager(extensions_,
                                                 &client_session_control_);
 
-  EXPECT_EQ(extension_manager.GetCapabilities(), "cap1 cap3");
+  std::vector<std::string> reported_caps;
+  Tokenize(extension_manager.GetCapabilities(), " ", &reported_caps);
+  std::sort(reported_caps.begin(), reported_caps.end());
+
+  ASSERT_EQ(2U, reported_caps.size());
+  EXPECT_EQ("cap1", reported_caps[0]);
+  EXPECT_EQ("cap3", reported_caps[1]);
 }
 
 // Verifies that an extension is not instantiated if the client does not
 // support its required capability, and that it does not receive messages.
 TEST_F(HostExtensionSessionManagerTest, ExtensionCapabilities_AreChecked) {
   HostExtensionSessionManager extension_manager(extensions_,
                                                 &client_session_control_);
   extension_manager.OnNegotiatedCapabilities(&client_stub_, "cap1");
 
   protocol::ExtensionMessage message;
@@ skipping 10 matching lines @@
 TEST_F(HostExtensionSessionManagerTest, CanWrapVideoCapturer) {
   HostExtensionSessionManager extension_manager(extensions_,
                                                 &client_session_control_);
 
   // Set up all the extensions to request to modify the video pipeline.
   extension1_.set_steal_video_capturer(true);
   extension2_.set_steal_video_capturer(true);
   extension3_.set_steal_video_capturer(true);
   extension_manager.OnNegotiatedCapabilities(&client_stub_, "cap1");
 
-  extension_manager.OnCreateVideoCapturer(
-      scoped_ptr<webrtc::DesktopCapturer>());
+  scoped_ptr<webrtc::DesktopCapturer> dummy_capturer;
+  extension_manager.OnCreateVideoCapturer(&dummy_capturer);
 
   EXPECT_FALSE(extension1_.has_wrapped_video_encoder());
   EXPECT_TRUE(extension1_.has_wrapped_video_capturer());
   EXPECT_FALSE(extension2_.has_wrapped_video_encoder());
   EXPECT_TRUE(extension2_.has_wrapped_video_capturer());
   EXPECT_FALSE(extension3_.was_instantiated());
 }
 
 // Verifies that matching extensions are given the opportunity to wrap or
 // replace the video encoders.
 TEST_F(HostExtensionSessionManagerTest, CanWrapVideoEncoder) {
   HostExtensionSessionManager extension_manager(extensions_,
                                                 &client_session_control_);
 
   // Set up all the extensions to request to modify the video pipeline.
   extension1_.set_steal_video_capturer(true);
   extension2_.set_steal_video_capturer(true);
   extension3_.set_steal_video_capturer(true);
   extension_manager.OnNegotiatedCapabilities(&client_stub_, "cap1");
 
-  extension_manager.OnCreateVideoEncoder(scoped_ptr<VideoEncoder>());
+  scoped_ptr<VideoEncoder> dummy_encoder;
+  extension_manager.OnCreateVideoEncoder(&dummy_encoder);
 
   EXPECT_TRUE(extension1_.has_wrapped_video_encoder());
   EXPECT_FALSE(extension1_.has_wrapped_video_capturer());
   EXPECT_TRUE(extension2_.has_wrapped_video_encoder());
   EXPECT_FALSE(extension2_.has_wrapped_video_capturer());
   EXPECT_FALSE(extension3_.was_instantiated());
 }
 
 // Verifies that only extensions which report that they modify the video
 // pipeline actually get called to modify it.
 TEST_F(HostExtensionSessionManagerTest, RespectModifiesVideoPipeline) {
   HostExtensionSessionManager extension_manager(extensions_,
                                                 &client_session_control_);
 
   // Set up the second extension to request to modify the video pipeline.
   extension2_.set_steal_video_capturer(true);
   extension_manager.OnNegotiatedCapabilities(&client_stub_, "cap1");
 
-  extension_manager.OnCreateVideoCapturer(
-      scoped_ptr<webrtc::DesktopCapturer>());
-  extension_manager.OnCreateVideoEncoder(scoped_ptr<VideoEncoder>());
+  scoped_ptr<webrtc::DesktopCapturer> dummy_capturer;
+  extension_manager.OnCreateVideoCapturer(&dummy_capturer);
+  scoped_ptr<VideoEncoder> dummy_encoder;
+  extension_manager.OnCreateVideoEncoder(&dummy_encoder);
 
   EXPECT_FALSE(extension1_.has_wrapped_video_encoder());
   EXPECT_FALSE(extension1_.has_wrapped_video_capturer());
   EXPECT_TRUE(extension2_.has_wrapped_video_encoder());
   EXPECT_TRUE(extension2_.has_wrapped_video_capturer());
   EXPECT_FALSE(extension3_.was_instantiated());
 }
 
-// Verifies that if an extension reports that they modify the video pipeline
+// Verifies that if an extension reports that it modifies the video pipeline
 // then ResetVideoPipeline() is called on the ClientSessionControl interface.
 TEST_F(HostExtensionSessionManagerTest, CallsResetVideoPipeline) {
   HostExtensionSessionManager extension_manager(extensions_,
                                                 &client_session_control_);
 
   EXPECT_CALL(client_session_control_, ResetVideoPipeline());
 
   // Set up only the first extension to request to modify the video pipeline.
   extension1_.set_steal_video_capturer(true);
 
   extension_manager.OnNegotiatedCapabilities(&client_stub_, "cap1");
 }
 
 
 }  // namespace remoting