Use Chromium BUILD to approximate Blimp protocol version, and check it.

blimp/common/create_blimp_message_unittest.cc

 // 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.
 
 #include "blimp/common/create_blimp_message.h"
 #include "blimp/common/proto/blimp_message.pb.h"
 #include "blimp/common/proto/compositor.pb.h"
 #include "blimp/common/proto/input.pb.h"
 #include "blimp/common/proto/navigation.pb.h"
 #include "blimp/common/proto/render_widget.pb.h"
@@ skipping 73 matching lines @@
   EXPECT_NE(nullptr, message);
   EXPECT_EQ(BlimpMessage::PROTOCOL_CONTROL, message->type());
   EXPECT_EQ(ProtocolControlMessage::START_CONNECTION,
             message->protocol_control().type());
   EXPECT_EQ(client_token,
             message->protocol_control().start_connection().client_token());
   EXPECT_EQ(protocol_version,
             message->protocol_control().start_connection().protocol_version());
 }
 
+TEST(CreateBlimpMessageTest, EndConnectionMessage) {
+  std::unique_ptr<BlimpMessage> message =
+      CreateEndConnectionMessage(EndConnectionMessage::PROTOCOL_MISMATCH);
+  EXPECT_NE(nullptr, message);

[Kevin M, 2016/04/22 21:12:54]

ASSERT_NE for null checks?

+  EXPECT_EQ(BlimpMessage::PROTOCOL_CONTROL, message->type());
+  EXPECT_EQ(ProtocolControlMessage::END_CONNECTION,
+            message->protocol_control().type());
+  EXPECT_EQ(EndConnectionMessage::PROTOCOL_MISMATCH,
+            message->protocol_control().end_connection().reason());
+}
+
+TEST(CreateBlimpMessageTest, CheckpointAckMessage) {
+  const int64_t kTestCheckpointId = 1;
+
+  std::unique_ptr<BlimpMessage> message =
+      CreateCheckpointAckMessage(kTestCheckpointId);
+  EXPECT_NE(nullptr, message);
+  EXPECT_EQ(BlimpMessage::PROTOCOL_CONTROL, message->type());
+  EXPECT_EQ(ProtocolControlMessage::CHECKPOINT_ACK,
+            message->protocol_control().type());
+  EXPECT_EQ(kTestCheckpointId,
+            message->protocol_control().checkpoint_ack().checkpoint_id());
+}
+
 }  // namespace
 }  // namespace blimp