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// 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 <string>
#include "base/memory/scoped_ptr.h"
#include "base/message_loop/message_loop.h"
#include "blimp/common/create_blimp_message.h"
#include "blimp/common/proto/blimp_message.pb.h"
#include "blimp/common/proto/protocol_control.pb.h"
#include "blimp/net/blimp_connection.h"
#include "blimp/net/tcp_client_transport.h"
#include "blimp/net/tcp_engine_transport.h"
#include "blimp/net/test_common.h"
#include "net/base/address_list.h"
#include "net/base/ip_address.h"
#include "net/base/ip_endpoint.h"
#include "net/base/net_errors.h"
#include "net/base/test_completion_callback.h"
#include "testing/gtest/include/gtest/gtest.h"
using testing::_;
using testing::SaveArg;
namespace blimp {
namespace {
// Integration test for TCPEngineTransport and TCPClientTransport.
class TCPTransportTest : public testing::Test {
protected:
TCPTransportTest() {
net::IPEndPoint local_address(net::IPAddress(127, 0, 0, 1), 0);
engine_.reset(new TCPEngineTransport(local_address, nullptr));
}
net::AddressList GetLocalAddressList() const {
net::IPEndPoint local_address;
engine_->GetLocalAddressForTesting(&local_address);
return net::AddressList(local_address);
}
base::MessageLoopForIO message_loop_;
scoped_ptr<TCPEngineTransport> engine_;
};
TEST_F(TCPTransportTest, Connect) {
net::TestCompletionCallback accept_callback;
engine_->Connect(accept_callback.callback());
net::TestCompletionCallback connect_callback;
TCPClientTransport client(GetLocalAddressList(), nullptr);
client.Connect(connect_callback.callback());
EXPECT_EQ(net::OK, connect_callback.WaitForResult());
EXPECT_EQ(net::OK, accept_callback.WaitForResult());
EXPECT_TRUE(engine_->TakeConnection() != nullptr);
}
TEST_F(TCPTransportTest, TwoClientConnections) {
net::TestCompletionCallback accept_callback1;
engine_->Connect(accept_callback1.callback());
net::TestCompletionCallback connect_callback1;
TCPClientTransport client1(GetLocalAddressList(), nullptr);
client1.Connect(connect_callback1.callback());
net::TestCompletionCallback connect_callback2;
TCPClientTransport client2(GetLocalAddressList(), nullptr);
client2.Connect(connect_callback2.callback());
EXPECT_EQ(net::OK, connect_callback1.WaitForResult());
EXPECT_EQ(net::OK, accept_callback1.WaitForResult());
EXPECT_TRUE(engine_->TakeConnection() != nullptr);
net::TestCompletionCallback accept_callback2;
engine_->Connect(accept_callback2.callback());
EXPECT_EQ(net::OK, connect_callback2.WaitForResult());
EXPECT_EQ(net::OK, accept_callback2.WaitForResult());
EXPECT_TRUE(engine_->TakeConnection() != nullptr);
}
TEST_F(TCPTransportTest, ExchangeMessages) {
// Start the Engine transport and connect a client to it.
net::TestCompletionCallback accept_callback;
engine_->Connect(accept_callback.callback());
net::TestCompletionCallback client_connect_callback;
TCPClientTransport client(GetLocalAddressList(), nullptr /* NetLog */);
client.Connect(client_connect_callback.callback());
EXPECT_EQ(net::OK, client_connect_callback.WaitForResult());
EXPECT_EQ(net::OK, accept_callback.WaitForResult());
// Expect the engine to get two messages from the client, and the client to
// get one from the engine.
MockBlimpMessageProcessor engine_incoming_processor;
MockBlimpMessageProcessor client_incoming_processor;
net::CompletionCallback engine_process_message_cb;
scoped_ptr<BlimpMessage> client_message1 =
CreateStartConnectionMessage("", 0);
scoped_ptr<BlimpMessage> client_message2 = CreateCheckpointAckMessage(5);
scoped_ptr<BlimpMessage> engine_message = CreateCheckpointAckMessage(10);
EXPECT_CALL(engine_incoming_processor,
MockableProcessMessage(EqualsProto(*client_message1), _))
.WillOnce(SaveArg<1>(&engine_process_message_cb));
EXPECT_CALL(engine_incoming_processor,
MockableProcessMessage(EqualsProto(*client_message2), _))
.Times(1);
EXPECT_CALL(client_incoming_processor,
MockableProcessMessage(EqualsProto(*engine_message), _))
.Times(1);
// Attach the ends of the connection to our mock message-processors.
scoped_ptr<BlimpConnection> engine_connnection = engine_->TakeConnection();
scoped_ptr<BlimpConnection> client_connnection = client.TakeConnection();
engine_connnection->SetIncomingMessageProcessor(&engine_incoming_processor);
client_connnection->SetIncomingMessageProcessor(&client_incoming_processor);
// Client sends the first message.
net::TestCompletionCallback client_send_callback1;
client_connnection->GetOutgoingMessageProcessor()->ProcessMessage(
std::move(client_message1), client_send_callback1.callback());
EXPECT_EQ(net::OK, client_send_callback1.WaitForResult());
// Engine finishes processing the client message.
EXPECT_FALSE(engine_process_message_cb.is_null());
engine_process_message_cb.Run(net::OK);
// Engine sends one message.
net::TestCompletionCallback engine_send_callback;
engine_connnection->GetOutgoingMessageProcessor()->ProcessMessage(
std::move(engine_message), engine_send_callback.callback());
EXPECT_EQ(net::OK, engine_send_callback.WaitForResult());
// Client sends the second message.
net::TestCompletionCallback client_send_callback2;
client_connnection->GetOutgoingMessageProcessor()->ProcessMessage(
std::move(client_message2), client_send_callback2.callback());
EXPECT_EQ(net::OK, client_send_callback2.WaitForResult());
}
} // namespace
} // namespace blimp
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