NFD/tests/daemon/face/unix-stream.cpp - ndnSIM - Gitiles

 /* -*- Mode:C++; c-file-style:"gnu"; indent-tabs-mode:nil; -*- */
 /**
  * Copyright (c) 2014,  Regents of the University of California,
  *                      Arizona Board of Regents,
  *                      Colorado State University,
  *                      University Pierre & Marie Curie, Sorbonne University,
  *                      Washington University in St. Louis,
  *                      Beijing Institute of Technology,
  *                      The University of Memphis
  *
  * This file is part of NFD (Named Data Networking Forwarding Daemon).
  * See AUTHORS.md for complete list of NFD authors and contributors.
  *
  * NFD is free software: you can redistribute it and/or modify it under the terms
  * of the GNU General Public License as published by the Free Software Foundation,
  * either version 3 of the License, or (at your option) any later version.
  *
  * NFD is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY;
  * without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR
  * PURPOSE.  See the GNU General Public License for more details.
  *
  * You should have received a copy of the GNU General Public License along with
  * NFD, e.g., in COPYING.md file.  If not, see <http://www.gnu.org/licenses/>.
  */

 #include "face/unix-stream-factory.hpp"

 #include "tests/test-common.hpp"
 #include "tests/limited-io.hpp"
 #include "dummy-stream-sender.hpp"
 #include "packet-datasets.hpp"

 namespace nfd {
 namespace tests {

 using namespace boost::asio::local;

 #define CHANNEL_PATH1 "unix-stream-test.1.sock"
 #define CHANNEL_PATH2 "unix-stream-test.2.sock"

 BOOST_FIXTURE_TEST_SUITE(FaceUnixStream, BaseFixture)

 BOOST_AUTO_TEST_CASE(ChannelMap)
 {
   UnixStreamFactory factory;

   shared_ptr<UnixStreamChannel> channel1 = factory.createChannel(CHANNEL_PATH1);
   shared_ptr<UnixStreamChannel> channel1a = factory.createChannel(CHANNEL_PATH1);
   BOOST_CHECK_EQUAL(channel1, channel1a);
   std::string channel1uri = channel1->getUri().toString();
   BOOST_CHECK_EQUAL(channel1uri.find("unix:///"), 0); // third '/' is the path separator
   BOOST_CHECK_EQUAL(channel1uri.rfind(CHANNEL_PATH1),
                     channel1uri.size() - std::string(CHANNEL_PATH1).size());

   shared_ptr<UnixStreamChannel> channel2 = factory.createChannel(CHANNEL_PATH2);
   BOOST_CHECK_NE(channel1, channel2);
 }

 BOOST_AUTO_TEST_CASE(GetChannels)
 {
   UnixStreamFactory factory;
   BOOST_REQUIRE_EQUAL(factory.getChannels().empty(), true);

   std::vector<shared_ptr<const Channel> > expectedChannels;

   expectedChannels.push_back(factory.createChannel(CHANNEL_PATH1));
   expectedChannels.push_back(factory.createChannel(CHANNEL_PATH2));

   std::list<shared_ptr<const Channel> > channels = factory.getChannels();
   for (std::list<shared_ptr<const Channel> >::const_iterator i = channels.begin();
        i != channels.end(); ++i)
     {
       std::vector<shared_ptr<const Channel> >::iterator pos =
         std::find(expectedChannels.begin(), expectedChannels.end(), *i);

       BOOST_REQUIRE(pos != expectedChannels.end());
       expectedChannels.erase(pos);
     }

   BOOST_CHECK_EQUAL(expectedChannels.size(), 0);
 }

 class EndToEndFixture : protected BaseFixture
 {
 public:
   void
   client_onConnect(const boost::system::error_code& error)
   {
     BOOST_CHECK_MESSAGE(!error, error.message());

     limitedIo.afterOp();
   }

   void
   channel1_onFaceCreated(const shared_ptr<Face>& newFace)
   {
     BOOST_CHECK(!static_cast<bool>(face1));
     face1 = static_pointer_cast<UnixStreamFace>(newFace);
     face1->onReceiveInterest +=
       bind(&EndToEndFixture::face1_onReceiveInterest, this, _1);
     face1->onReceiveData +=
       bind(&EndToEndFixture::face1_onReceiveData, this, _1);

     limitedIo.afterOp();
   }

   void
   channel1_onConnectFailed(const std::string& reason)
   {
     BOOST_CHECK_MESSAGE(false, reason);

     limitedIo.afterOp();
   }

   void
   face1_onReceiveInterest(const Interest& interest)
   {
     face1_receivedInterests.push_back(interest);

     limitedIo.afterOp();
   }

   void
   face1_onReceiveData(const Data& data)
   {
     face1_receivedDatas.push_back(data);

     limitedIo.afterOp();
   }

   void
   face2_onReceiveInterest(const Interest& interest)
   {
     face2_receivedInterests.push_back(interest);

     limitedIo.afterOp();
   }

   void
   face2_onReceiveData(const Data& data)
   {
     face2_receivedDatas.push_back(data);

     limitedIo.afterOp();
   }

   void
   channel_onFaceCreated(const shared_ptr<Face>& newFace)
   {
     faces.push_back(static_pointer_cast<UnixStreamFace>(newFace));

     limitedIo.afterOp();
   }

   void
   channel_onConnectFailed(const std::string& reason)
   {
     BOOST_CHECK_MESSAGE(false, reason);

     limitedIo.afterOp();
   }

 protected:
   LimitedIo limitedIo;

   shared_ptr<UnixStreamFace> face1;
   std::vector<Interest> face1_receivedInterests;
   std::vector<Data> face1_receivedDatas;
   shared_ptr<UnixStreamFace> face2;
   std::vector<Interest> face2_receivedInterests;
   std::vector<Data> face2_receivedDatas;

   std::list< shared_ptr<UnixStreamFace> > faces;
 };


 BOOST_FIXTURE_TEST_CASE(EndToEnd, EndToEndFixture)
 {
   UnixStreamFactory factory;

   shared_ptr<UnixStreamChannel> channel1 = factory.createChannel(CHANNEL_PATH1);
   channel1->listen(bind(&EndToEndFixture::channel1_onFaceCreated,   this, _1),
                    bind(&EndToEndFixture::channel1_onConnectFailed, this, _1));

   shared_ptr<stream_protocol::socket> client = make_shared<stream_protocol::socket>(ref(g_io));
   client->async_connect(stream_protocol::endpoint(CHANNEL_PATH1),
                         bind(&EndToEndFixture::client_onConnect, this, _1));

   BOOST_CHECK_MESSAGE(limitedIo.run(2, time::seconds(1)) == LimitedIo::EXCEED_OPS,
                       "UnixStreamChannel error: cannot connect or cannot accept connection");

   BOOST_REQUIRE(static_cast<bool>(face1));

   BOOST_CHECK_EQUAL(face1->getRemoteUri().getScheme(), "fd");
   BOOST_CHECK_NO_THROW(boost::lexical_cast<int>(face1->getRemoteUri().getHost()));
   std::string face1localUri = face1->getLocalUri().toString();
   BOOST_CHECK_EQUAL(face1localUri.find("unix:///"), 0); // third '/' is the path separator
   BOOST_CHECK_EQUAL(face1localUri.rfind(CHANNEL_PATH1),
                     face1localUri.size() - std::string(CHANNEL_PATH1).size());

   face2 = make_shared<UnixStreamFace>(client);
   face2->onReceiveInterest +=
     bind(&EndToEndFixture::face2_onReceiveInterest, this, _1);
   face2->onReceiveData +=
     bind(&EndToEndFixture::face2_onReceiveData, this, _1);

   shared_ptr<Interest> interest1 = makeInterest("ndn:/TpnzGvW9R");
   shared_ptr<Data>     data1     = makeData("ndn:/KfczhUqVix");
   shared_ptr<Interest> interest2 = makeInterest("ndn:/QWiIMfj5sL");
   shared_ptr<Data>     data2     = makeData("ndn:/XNBV796f");

   face1->sendInterest(*interest1);
   face1->sendInterest(*interest1);
   face1->sendInterest(*interest1);
   face1->sendData    (*data1    );
   size_t nBytesSent1 = interest1->wireEncode().size() * 3 + data1->wireEncode().size();
   face2->sendInterest(*interest2);
   face2->sendData    (*data2    );
   face2->sendData    (*data2    );
   face2->sendData    (*data2    );
   size_t nBytesSent2 = interest2->wireEncode().size() + data2->wireEncode().size() * 3;

   BOOST_CHECK_MESSAGE(limitedIo.run(8, time::seconds(1)) == LimitedIo::EXCEED_OPS,
                       "UnixStreamChannel error: cannot send or receive Interest/Data packets");

   BOOST_REQUIRE_EQUAL(face1_receivedInterests.size(), 1);
   BOOST_REQUIRE_EQUAL(face1_receivedDatas    .size(), 3);
   BOOST_REQUIRE_EQUAL(face2_receivedInterests.size(), 3);
   BOOST_REQUIRE_EQUAL(face2_receivedDatas    .size(), 1);

   BOOST_CHECK_EQUAL(face1_receivedInterests[0].getName(), interest2->getName());
   BOOST_CHECK_EQUAL(face1_receivedDatas    [0].getName(), data2->getName());
   BOOST_CHECK_EQUAL(face2_receivedInterests[0].getName(), interest1->getName());
   BOOST_CHECK_EQUAL(face2_receivedDatas    [0].getName(), data1->getName());

   // needed to ensure NOutBytes counters are accurate
   limitedIo.run(LimitedIo::UNLIMITED_OPS, time::seconds(1));

   const FaceCounters& counters1 = face1->getCounters();
   BOOST_CHECK_EQUAL(counters1.getNInInterests() , 1);
   BOOST_CHECK_EQUAL(counters1.getNInDatas()     , 3);
   BOOST_CHECK_EQUAL(counters1.getNOutInterests(), 3);
   BOOST_CHECK_EQUAL(counters1.getNOutDatas()    , 1);
   BOOST_CHECK_EQUAL(counters1.getNInBytes(), nBytesSent2);
   BOOST_CHECK_EQUAL(counters1.getNOutBytes(), nBytesSent1);

   const FaceCounters& counters2 = face2->getCounters();
   BOOST_CHECK_EQUAL(counters2.getNInInterests() , 3);
   BOOST_CHECK_EQUAL(counters2.getNInDatas()     , 1);
   BOOST_CHECK_EQUAL(counters2.getNOutInterests(), 1);
   BOOST_CHECK_EQUAL(counters2.getNOutDatas()    , 3);
 }

 BOOST_FIXTURE_TEST_CASE(MultipleAccepts, EndToEndFixture)
 {
   UnixStreamFactory factory;

   shared_ptr<UnixStreamChannel> channel = factory.createChannel(CHANNEL_PATH1);
   channel->listen(bind(&EndToEndFixture::channel_onFaceCreated,   this, _1),
                   bind(&EndToEndFixture::channel_onConnectFailed, this, _1));

   shared_ptr<stream_protocol::socket> client1 = make_shared<stream_protocol::socket>(ref(g_io));
   client1->async_connect(stream_protocol::endpoint(CHANNEL_PATH1),
                          bind(&EndToEndFixture::client_onConnect, this, _1));

   BOOST_CHECK_MESSAGE(limitedIo.run(2, time::seconds(1)) == LimitedIo::EXCEED_OPS,
                       "UnixStreamChannel error: cannot connect or cannot accept connection");

   BOOST_CHECK_EQUAL(faces.size(), 1);

   shared_ptr<stream_protocol::socket> client2 = make_shared<stream_protocol::socket>(ref(g_io));
   client2->async_connect(stream_protocol::endpoint(CHANNEL_PATH1),
                          bind(&EndToEndFixture::client_onConnect, this, _1));

   BOOST_CHECK_MESSAGE(limitedIo.run(2, time::seconds(1)) == LimitedIo::EXCEED_OPS,
                       "UnixStreamChannel error: cannot accept multiple connections");

   BOOST_CHECK_EQUAL(faces.size(), 2);

   // now close one of the faces
   faces.front()->close();

   // we should still be able to send/receive with the other one
   face1 = faces.back();
   face1->onReceiveInterest += bind(&EndToEndFixture::face1_onReceiveInterest, this, _1);
   face1->onReceiveData += bind(&EndToEndFixture::face1_onReceiveData, this, _1);

   face2 = make_shared<UnixStreamFace>(client2);
   face2->onReceiveInterest += bind(&EndToEndFixture::face2_onReceiveInterest, this, _1);
   face2->onReceiveData += bind(&EndToEndFixture::face2_onReceiveData, this, _1);

   shared_ptr<Interest> interest1 = makeInterest("ndn:/TpnzGvW9R");
   shared_ptr<Data>     data1     = makeData("ndn:/KfczhUqVix");
   shared_ptr<Interest> interest2 = makeInterest("ndn:/QWiIMfj5sL");
   shared_ptr<Data>     data2     = makeData("ndn:/XNBV796f");

   face1->sendInterest(*interest1);
   face1->sendData    (*data1    );
   face2->sendInterest(*interest2);
   face2->sendData    (*data2    );

   BOOST_CHECK_MESSAGE(limitedIo.run(4, time::seconds(1)) == LimitedIo::EXCEED_OPS,
                       "UnixStreamChannel error: cannot send or receive Interest/Data packets");

   BOOST_REQUIRE_EQUAL(face1_receivedInterests.size(), 1);
   BOOST_REQUIRE_EQUAL(face1_receivedDatas    .size(), 1);
   BOOST_REQUIRE_EQUAL(face2_receivedInterests.size(), 1);
   BOOST_REQUIRE_EQUAL(face2_receivedDatas    .size(), 1);

   BOOST_CHECK_EQUAL(face1_receivedInterests[0].getName(), interest2->getName());
   BOOST_CHECK_EQUAL(face1_receivedDatas    [0].getName(), data2->getName());
   BOOST_CHECK_EQUAL(face2_receivedInterests[0].getName(), interest1->getName());
   BOOST_CHECK_EQUAL(face2_receivedDatas    [0].getName(), data1->getName());
 }

 static inline void
 noOp()
 {
 }

 BOOST_FIXTURE_TEST_CASE(UnixStreamFaceLocalControlHeader, EndToEndFixture)
 {
   UnixStreamFactory factory;

   shared_ptr<UnixStreamChannel> channel1 = factory.createChannel(CHANNEL_PATH1);
   channel1->listen(bind(&EndToEndFixture::channel1_onFaceCreated,   this, _1),
                    bind(&EndToEndFixture::channel1_onConnectFailed, this, _1));

   shared_ptr<stream_protocol::socket> client = make_shared<stream_protocol::socket>(ref(g_io));
   client->async_connect(stream_protocol::endpoint(CHANNEL_PATH1),
                         bind(&EndToEndFixture::client_onConnect, this, _1));

   BOOST_CHECK_MESSAGE(limitedIo.run(2, time::seconds(1)) == LimitedIo::EXCEED_OPS,
                       "UnixStreamChannel error: cannot connect or cannot accept connection");

   BOOST_REQUIRE(static_cast<bool>(face1));

   face2 = make_shared<UnixStreamFace>(client);
   face2->onReceiveInterest +=
     bind(&EndToEndFixture::face2_onReceiveInterest, this, _1);
   face2->onReceiveData +=
     bind(&EndToEndFixture::face2_onReceiveData, this, _1);

   shared_ptr<Interest> interest1 = makeInterest("ndn:/TpnzGvW9R");
   shared_ptr<Data>     data1     = makeData("ndn:/KfczhUqVix");

   face1->setLocalControlHeaderFeature(LOCAL_CONTROL_FEATURE_INCOMING_FACE_ID);
   face1->setLocalControlHeaderFeature(LOCAL_CONTROL_FEATURE_NEXT_HOP_FACE_ID);

   BOOST_CHECK(face1->isLocalControlHeaderEnabled(LOCAL_CONTROL_FEATURE_INCOMING_FACE_ID));
   BOOST_CHECK(face1->isLocalControlHeaderEnabled(LOCAL_CONTROL_FEATURE_NEXT_HOP_FACE_ID));

   face2->setLocalControlHeaderFeature(LOCAL_CONTROL_FEATURE_INCOMING_FACE_ID);
   face2->setLocalControlHeaderFeature(LOCAL_CONTROL_FEATURE_NEXT_HOP_FACE_ID);

   BOOST_CHECK(face2->isLocalControlHeaderEnabled(LOCAL_CONTROL_FEATURE_INCOMING_FACE_ID));
   BOOST_CHECK(face2->isLocalControlHeaderEnabled(LOCAL_CONTROL_FEATURE_NEXT_HOP_FACE_ID));

   ////////////////////////////////////////////////////////

   interest1->setIncomingFaceId(11);
   interest1->setNextHopFaceId(111);

   face1->sendInterest(*interest1);

   data1->setIncomingFaceId(22);
   data1->getLocalControlHeader().setNextHopFaceId(222);

   face1->sendData(*data1);

   //

   BOOST_CHECK_MESSAGE(limitedIo.run(2, time::seconds(1)) == LimitedIo::EXCEED_OPS,
                       "UnixStreamChannel error: cannot send or receive Interest/Data packets");

   BOOST_REQUIRE_EQUAL(face2_receivedInterests.size(), 1);
   BOOST_REQUIRE_EQUAL(face2_receivedDatas    .size(), 1);

   // sending allows only IncomingFaceId, receiving allows only NextHopFaceId
   BOOST_CHECK_EQUAL(face2_receivedInterests[0].getLocalControlHeader().hasIncomingFaceId(), false);
   BOOST_CHECK_EQUAL(face2_receivedInterests[0].getLocalControlHeader().hasNextHopFaceId(), false);

   BOOST_CHECK_EQUAL(face2_receivedDatas[0].getLocalControlHeader().hasIncomingFaceId(), false);
   BOOST_CHECK_EQUAL(face2_receivedDatas[0].getLocalControlHeader().hasNextHopFaceId(), false);

   ////////////////////////////////////////////////////////

   using namespace boost::asio;

   std::vector<const_buffer> interestWithHeader;
   Block iHeader  = interest1->getLocalControlHeader().wireEncode(*interest1, true, true);
   Block iPayload = interest1->wireEncode();
   interestWithHeader.push_back(buffer(iHeader.wire(),  iHeader.size()));
   interestWithHeader.push_back(buffer(iPayload.wire(), iPayload.size()));

   std::vector<const_buffer> dataWithHeader;
   Block dHeader  = data1->getLocalControlHeader().wireEncode(*data1, true, true);
   Block dPayload = data1->wireEncode();
   dataWithHeader.push_back(buffer(dHeader.wire(),  dHeader.size()));
   dataWithHeader.push_back(buffer(dPayload.wire(), dPayload.size()));

   //

   client->async_send(interestWithHeader, bind(&noOp));
   client->async_send(dataWithHeader, bind(&noOp));

   BOOST_CHECK_MESSAGE(limitedIo.run(2, time::seconds(1)) == LimitedIo::EXCEED_OPS,
                       "UnixStreamChannel error: cannot send or receive Interest/Data packets");

   BOOST_REQUIRE_EQUAL(face1_receivedInterests.size(), 1);
   BOOST_REQUIRE_EQUAL(face1_receivedDatas    .size(), 1);

   BOOST_CHECK_EQUAL(face1_receivedInterests[0].getLocalControlHeader().hasIncomingFaceId(), false);
   BOOST_CHECK_EQUAL(face1_receivedInterests[0].getLocalControlHeader().hasNextHopFaceId(), true);
   BOOST_CHECK_EQUAL(face1_receivedInterests[0].getNextHopFaceId(), 111);

   BOOST_CHECK_EQUAL(face1_receivedDatas[0].getLocalControlHeader().hasIncomingFaceId(), false);
   BOOST_CHECK_EQUAL(face1_receivedDatas[0].getLocalControlHeader().hasNextHopFaceId(), false);
 }


 class SimpleEndToEndFixture : protected BaseFixture
 {
 public:
   void
   onFaceCreated(const shared_ptr<Face>& face)
   {
     face->onReceiveInterest +=
       bind(&SimpleEndToEndFixture::onReceiveInterest, this, _1);
     face->onReceiveData +=
       bind(&SimpleEndToEndFixture::onReceiveData, this, _1);
     face->onFail +=
       bind(&SimpleEndToEndFixture::onFail, this, face);

     if (static_cast<bool>(dynamic_pointer_cast<LocalFace>(face))) {
       static_pointer_cast<LocalFace>(face)->setLocalControlHeaderFeature(
         LOCAL_CONTROL_FEATURE_INCOMING_FACE_ID);

       static_pointer_cast<LocalFace>(face)->setLocalControlHeaderFeature(
         LOCAL_CONTROL_FEATURE_NEXT_HOP_FACE_ID);
     }

     limitedIo.afterOp();
   }

   void
   onConnectFailed(const std::string& reason)
   {
     BOOST_CHECK_MESSAGE(false, reason);

     limitedIo.afterOp();
   }

   void
   onReceiveInterest(const Interest& interest)
   {
     receivedInterests.push_back(interest);

     limitedIo.afterOp();
   }

   void
   onReceiveData(const Data& data)
   {
     receivedDatas.push_back(data);

     limitedIo.afterOp();
   }

   void
   onFail(const shared_ptr<Face>& face)
   {
     limitedIo.afterOp();
   }

 public:
   LimitedIo limitedIo;

   std::vector<Interest> receivedInterests;
   std::vector<Data> receivedDatas;
 };


 BOOST_FIXTURE_TEST_CASE_TEMPLATE(CorruptedInput, Dataset,
                                  CorruptedPackets, SimpleEndToEndFixture)
 {
   UnixStreamFactory factory;

   shared_ptr<UnixStreamChannel> channel = factory.createChannel(CHANNEL_PATH1);
   channel->listen(bind(&SimpleEndToEndFixture::onFaceCreated,   this, _1),
                   bind(&SimpleEndToEndFixture::onConnectFailed, this, _1));

   DummyStreamSender<stream_protocol, Dataset> sender;
   sender.start(stream_protocol::endpoint(CHANNEL_PATH1));

   BOOST_CHECK_MESSAGE(limitedIo.run(LimitedIo::UNLIMITED_OPS,
                                     time::seconds(1)) == LimitedIo::EXCEED_TIME,
                       "Exception thrown for " + Dataset::getName());
 }


 BOOST_AUTO_TEST_SUITE_END()

 } // namespace tests
 } // namespace nfd
	/* -- Mode:C++; c-file-style:"gnu"; indent-tabs-mode:nil; -- */
	/**
	* Copyright (c) 2014, Regents of the University of California,
	* Arizona Board of Regents,
	* Colorado State University,
	* University Pierre & Marie Curie, Sorbonne University,
	* Washington University in St. Louis,
	* Beijing Institute of Technology,
	* The University of Memphis
	*
	* This file is part of NFD (Named Data Networking Forwarding Daemon).
	* See AUTHORS.md for complete list of NFD authors and contributors.
	*
	* NFD is free software: you can redistribute it and/or modify it under the terms
	* of the GNU General Public License as published by the Free Software Foundation,
	* either version 3 of the License, or (at your option) any later version.
	*
	* NFD is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY;
	* without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR
	* PURPOSE. See the GNU General Public License for more details.
	*
	* You should have received a copy of the GNU General Public License along with
	* NFD, e.g., in COPYING.md file. If not, see <http://www.gnu.org/licenses/>.
	*/

	#include "face/unix-stream-factory.hpp"

	#include "tests/test-common.hpp"
	#include "tests/limited-io.hpp"
	#include "dummy-stream-sender.hpp"
	#include "packet-datasets.hpp"

	namespace nfd {
	namespace tests {

	using namespace boost::asio::local;

	#define CHANNEL_PATH1 "unix-stream-test.1.sock"
	#define CHANNEL_PATH2 "unix-stream-test.2.sock"

	BOOST_FIXTURE_TEST_SUITE(FaceUnixStream, BaseFixture)

	BOOST_AUTO_TEST_CASE(ChannelMap)
	{
	UnixStreamFactory factory;

	shared_ptr<UnixStreamChannel> channel1 = factory.createChannel(CHANNEL_PATH1);
	shared_ptr<UnixStreamChannel> channel1a = factory.createChannel(CHANNEL_PATH1);
	BOOST_CHECK_EQUAL(channel1, channel1a);
	std::string channel1uri = channel1->getUri().toString();
	BOOST_CHECK_EQUAL(channel1uri.find("unix:///"), 0); // third '/' is the path separator
	BOOST_CHECK_EQUAL(channel1uri.rfind(CHANNEL_PATH1),
	channel1uri.size() - std::string(CHANNEL_PATH1).size());

	shared_ptr<UnixStreamChannel> channel2 = factory.createChannel(CHANNEL_PATH2);
	BOOST_CHECK_NE(channel1, channel2);
	}

	BOOST_AUTO_TEST_CASE(GetChannels)
	{
	UnixStreamFactory factory;
	BOOST_REQUIRE_EQUAL(factory.getChannels().empty(), true);

	std::vector<shared_ptr<const Channel> > expectedChannels;

	expectedChannels.push_back(factory.createChannel(CHANNEL_PATH1));
	expectedChannels.push_back(factory.createChannel(CHANNEL_PATH2));

	std::list<shared_ptr<const Channel> > channels = factory.getChannels();
	for (std::list<shared_ptr<const Channel> >::const_iterator i = channels.begin();
	i != channels.end(); ++i)
	{
	std::vector<shared_ptr<const Channel> >::iterator pos =
	std::find(expectedChannels.begin(), expectedChannels.end(), *i);

	BOOST_REQUIRE(pos != expectedChannels.end());
	expectedChannels.erase(pos);
	}

	BOOST_CHECK_EQUAL(expectedChannels.size(), 0);
	}

	class EndToEndFixture : protected BaseFixture
	{
	public:
	void
	client_onConnect(const boost::system::error_code& error)
	{
	BOOST_CHECK_MESSAGE(!error, error.message());

	limitedIo.afterOp();
	}

	void
	channel1_onFaceCreated(const shared_ptr<Face>& newFace)
	{
	BOOST_CHECK(!static_cast<bool>(face1));
	face1 = static_pointer_cast<UnixStreamFace>(newFace);
	face1->onReceiveInterest +=
	bind(&EndToEndFixture::face1_onReceiveInterest, this, _1);
	face1->onReceiveData +=
	bind(&EndToEndFixture::face1_onReceiveData, this, _1);

	limitedIo.afterOp();
	}

	void
	channel1_onConnectFailed(const std::string& reason)
	{
	BOOST_CHECK_MESSAGE(false, reason);

	limitedIo.afterOp();
	}

	void
	face1_onReceiveInterest(const Interest& interest)
	{
	face1_receivedInterests.push_back(interest);

	limitedIo.afterOp();
	}

	void
	face1_onReceiveData(const Data& data)
	{
	face1_receivedDatas.push_back(data);

	limitedIo.afterOp();
	}

	void
	face2_onReceiveInterest(const Interest& interest)
	{
	face2_receivedInterests.push_back(interest);

	limitedIo.afterOp();
	}

	void
	face2_onReceiveData(const Data& data)
	{
	face2_receivedDatas.push_back(data);

	limitedIo.afterOp();
	}

	void
	channel_onFaceCreated(const shared_ptr<Face>& newFace)
	{
	faces.push_back(static_pointer_cast<UnixStreamFace>(newFace));

	limitedIo.afterOp();
	}

	void
	channel_onConnectFailed(const std::string& reason)
	{
	BOOST_CHECK_MESSAGE(false, reason);

	limitedIo.afterOp();
	}

	protected:
	LimitedIo limitedIo;

	shared_ptr<UnixStreamFace> face1;
	std::vector<Interest> face1_receivedInterests;
	std::vector<Data> face1_receivedDatas;
	shared_ptr<UnixStreamFace> face2;
	std::vector<Interest> face2_receivedInterests;
	std::vector<Data> face2_receivedDatas;

	std::list< shared_ptr<UnixStreamFace> > faces;
	};


	BOOST_FIXTURE_TEST_CASE(EndToEnd, EndToEndFixture)
	{
	UnixStreamFactory factory;

	shared_ptr<UnixStreamChannel> channel1 = factory.createChannel(CHANNEL_PATH1);
	channel1->listen(bind(&EndToEndFixture::channel1_onFaceCreated, this, _1),
	bind(&EndToEndFixture::channel1_onConnectFailed, this, _1));

	shared_ptr<stream_protocol::socket> client = make_shared<stream_protocol::socket>(ref(g_io));
	client->async_connect(stream_protocol::endpoint(CHANNEL_PATH1),
	bind(&EndToEndFixture::client_onConnect, this, _1));

	BOOST_CHECK_MESSAGE(limitedIo.run(2, time::seconds(1)) == LimitedIo::EXCEED_OPS,
	"UnixStreamChannel error: cannot connect or cannot accept connection");

	BOOST_REQUIRE(static_cast<bool>(face1));

	BOOST_CHECK_EQUAL(face1->getRemoteUri().getScheme(), "fd");
	BOOST_CHECK_NO_THROW(boost::lexical_cast<int>(face1->getRemoteUri().getHost()));
	std::string face1localUri = face1->getLocalUri().toString();
	BOOST_CHECK_EQUAL(face1localUri.find("unix:///"), 0); // third '/' is the path separator
	BOOST_CHECK_EQUAL(face1localUri.rfind(CHANNEL_PATH1),
	face1localUri.size() - std::string(CHANNEL_PATH1).size());

	face2 = make_shared<UnixStreamFace>(client);
	face2->onReceiveInterest +=
	bind(&EndToEndFixture::face2_onReceiveInterest, this, _1);
	face2->onReceiveData +=
	bind(&EndToEndFixture::face2_onReceiveData, this, _1);

	shared_ptr<Interest> interest1 = makeInterest("ndn:/TpnzGvW9R");
	shared_ptr<Data> data1 = makeData("ndn:/KfczhUqVix");
	shared_ptr<Interest> interest2 = makeInterest("ndn:/QWiIMfj5sL");
	shared_ptr<Data> data2 = makeData("ndn:/XNBV796f");

	face1->sendInterest(*interest1);
	face1->sendInterest(*interest1);
	face1->sendInterest(*interest1);
	face1->sendData (*data1 );
	size_t nBytesSent1 = interest1->wireEncode().size() * 3 + data1->wireEncode().size();
	face2->sendInterest(*interest2);
	face2->sendData (*data2 );
	face2->sendData (*data2 );
	face2->sendData (*data2 );
	size_t nBytesSent2 = interest2->wireEncode().size() + data2->wireEncode().size() * 3;

	BOOST_CHECK_MESSAGE(limitedIo.run(8, time::seconds(1)) == LimitedIo::EXCEED_OPS,
	"UnixStreamChannel error: cannot send or receive Interest/Data packets");

	BOOST_REQUIRE_EQUAL(face1_receivedInterests.size(), 1);
	BOOST_REQUIRE_EQUAL(face1_receivedDatas .size(), 3);
	BOOST_REQUIRE_EQUAL(face2_receivedInterests.size(), 3);
	BOOST_REQUIRE_EQUAL(face2_receivedDatas .size(), 1);

	BOOST_CHECK_EQUAL(face1_receivedInterests[0].getName(), interest2->getName());
	BOOST_CHECK_EQUAL(face1_receivedDatas [0].getName(), data2->getName());
	BOOST_CHECK_EQUAL(face2_receivedInterests[0].getName(), interest1->getName());
	BOOST_CHECK_EQUAL(face2_receivedDatas [0].getName(), data1->getName());

	// needed to ensure NOutBytes counters are accurate
	limitedIo.run(LimitedIo::UNLIMITED_OPS, time::seconds(1));

	const FaceCounters& counters1 = face1->getCounters();
	BOOST_CHECK_EQUAL(counters1.getNInInterests() , 1);
	BOOST_CHECK_EQUAL(counters1.getNInDatas() , 3);
	BOOST_CHECK_EQUAL(counters1.getNOutInterests(), 3);
	BOOST_CHECK_EQUAL(counters1.getNOutDatas() , 1);
	BOOST_CHECK_EQUAL(counters1.getNInBytes(), nBytesSent2);
	BOOST_CHECK_EQUAL(counters1.getNOutBytes(), nBytesSent1);

	const FaceCounters& counters2 = face2->getCounters();
	BOOST_CHECK_EQUAL(counters2.getNInInterests() , 3);
	BOOST_CHECK_EQUAL(counters2.getNInDatas() , 1);
	BOOST_CHECK_EQUAL(counters2.getNOutInterests(), 1);
	BOOST_CHECK_EQUAL(counters2.getNOutDatas() , 3);
	}

	BOOST_FIXTURE_TEST_CASE(MultipleAccepts, EndToEndFixture)
	{
	UnixStreamFactory factory;

	shared_ptr<UnixStreamChannel> channel = factory.createChannel(CHANNEL_PATH1);
	channel->listen(bind(&EndToEndFixture::channel_onFaceCreated, this, _1),
	bind(&EndToEndFixture::channel_onConnectFailed, this, _1));

	shared_ptr<stream_protocol::socket> client1 = make_shared<stream_protocol::socket>(ref(g_io));
	client1->async_connect(stream_protocol::endpoint(CHANNEL_PATH1),
	bind(&EndToEndFixture::client_onConnect, this, _1));

	BOOST_CHECK_MESSAGE(limitedIo.run(2, time::seconds(1)) == LimitedIo::EXCEED_OPS,
	"UnixStreamChannel error: cannot connect or cannot accept connection");

	BOOST_CHECK_EQUAL(faces.size(), 1);

	shared_ptr<stream_protocol::socket> client2 = make_shared<stream_protocol::socket>(ref(g_io));
	client2->async_connect(stream_protocol::endpoint(CHANNEL_PATH1),
	bind(&EndToEndFixture::client_onConnect, this, _1));

	BOOST_CHECK_MESSAGE(limitedIo.run(2, time::seconds(1)) == LimitedIo::EXCEED_OPS,
	"UnixStreamChannel error: cannot accept multiple connections");

	BOOST_CHECK_EQUAL(faces.size(), 2);

	// now close one of the faces
	faces.front()->close();

	// we should still be able to send/receive with the other one
	face1 = faces.back();
	face1->onReceiveInterest += bind(&EndToEndFixture::face1_onReceiveInterest, this, _1);
	face1->onReceiveData += bind(&EndToEndFixture::face1_onReceiveData, this, _1);

	face2 = make_shared<UnixStreamFace>(client2);
	face2->onReceiveInterest += bind(&EndToEndFixture::face2_onReceiveInterest, this, _1);
	face2->onReceiveData += bind(&EndToEndFixture::face2_onReceiveData, this, _1);

	shared_ptr<Interest> interest1 = makeInterest("ndn:/TpnzGvW9R");
	shared_ptr<Data> data1 = makeData("ndn:/KfczhUqVix");
	shared_ptr<Interest> interest2 = makeInterest("ndn:/QWiIMfj5sL");
	shared_ptr<Data> data2 = makeData("ndn:/XNBV796f");

	face1->sendInterest(*interest1);
	face1->sendData (*data1 );
	face2->sendInterest(*interest2);
	face2->sendData (*data2 );

	BOOST_CHECK_MESSAGE(limitedIo.run(4, time::seconds(1)) == LimitedIo::EXCEED_OPS,
	"UnixStreamChannel error: cannot send or receive Interest/Data packets");

	BOOST_REQUIRE_EQUAL(face1_receivedInterests.size(), 1);
	BOOST_REQUIRE_EQUAL(face1_receivedDatas .size(), 1);
	BOOST_REQUIRE_EQUAL(face2_receivedInterests.size(), 1);
	BOOST_REQUIRE_EQUAL(face2_receivedDatas .size(), 1);

	BOOST_CHECK_EQUAL(face1_receivedInterests[0].getName(), interest2->getName());
	BOOST_CHECK_EQUAL(face1_receivedDatas [0].getName(), data2->getName());
	BOOST_CHECK_EQUAL(face2_receivedInterests[0].getName(), interest1->getName());
	BOOST_CHECK_EQUAL(face2_receivedDatas [0].getName(), data1->getName());
	}

	static inline void
	noOp()
	{
	}

	BOOST_FIXTURE_TEST_CASE(UnixStreamFaceLocalControlHeader, EndToEndFixture)
	{
	UnixStreamFactory factory;

	shared_ptr<UnixStreamChannel> channel1 = factory.createChannel(CHANNEL_PATH1);
	channel1->listen(bind(&EndToEndFixture::channel1_onFaceCreated, this, _1),
	bind(&EndToEndFixture::channel1_onConnectFailed, this, _1));

	shared_ptr<stream_protocol::socket> client = make_shared<stream_protocol::socket>(ref(g_io));
	client->async_connect(stream_protocol::endpoint(CHANNEL_PATH1),
	bind(&EndToEndFixture::client_onConnect, this, _1));

	BOOST_CHECK_MESSAGE(limitedIo.run(2, time::seconds(1)) == LimitedIo::EXCEED_OPS,
	"UnixStreamChannel error: cannot connect or cannot accept connection");

	BOOST_REQUIRE(static_cast<bool>(face1));

	face2 = make_shared<UnixStreamFace>(client);
	face2->onReceiveInterest +=
	bind(&EndToEndFixture::face2_onReceiveInterest, this, _1);
	face2->onReceiveData +=
	bind(&EndToEndFixture::face2_onReceiveData, this, _1);

	shared_ptr<Interest> interest1 = makeInterest("ndn:/TpnzGvW9R");
	shared_ptr<Data> data1 = makeData("ndn:/KfczhUqVix");

	face1->setLocalControlHeaderFeature(LOCAL_CONTROL_FEATURE_INCOMING_FACE_ID);
	face1->setLocalControlHeaderFeature(LOCAL_CONTROL_FEATURE_NEXT_HOP_FACE_ID);

	BOOST_CHECK(face1->isLocalControlHeaderEnabled(LOCAL_CONTROL_FEATURE_INCOMING_FACE_ID));
	BOOST_CHECK(face1->isLocalControlHeaderEnabled(LOCAL_CONTROL_FEATURE_NEXT_HOP_FACE_ID));

	face2->setLocalControlHeaderFeature(LOCAL_CONTROL_FEATURE_INCOMING_FACE_ID);
	face2->setLocalControlHeaderFeature(LOCAL_CONTROL_FEATURE_NEXT_HOP_FACE_ID);

	BOOST_CHECK(face2->isLocalControlHeaderEnabled(LOCAL_CONTROL_FEATURE_INCOMING_FACE_ID));
	BOOST_CHECK(face2->isLocalControlHeaderEnabled(LOCAL_CONTROL_FEATURE_NEXT_HOP_FACE_ID));

	////////////////////////////////////////////////////////

	interest1->setIncomingFaceId(11);
	interest1->setNextHopFaceId(111);

	face1->sendInterest(*interest1);

	data1->setIncomingFaceId(22);
	data1->getLocalControlHeader().setNextHopFaceId(222);

	face1->sendData(*data1);

	//

	BOOST_CHECK_MESSAGE(limitedIo.run(2, time::seconds(1)) == LimitedIo::EXCEED_OPS,
	"UnixStreamChannel error: cannot send or receive Interest/Data packets");

	BOOST_REQUIRE_EQUAL(face2_receivedInterests.size(), 1);
	BOOST_REQUIRE_EQUAL(face2_receivedDatas .size(), 1);

	// sending allows only IncomingFaceId, receiving allows only NextHopFaceId
	BOOST_CHECK_EQUAL(face2_receivedInterests[0].getLocalControlHeader().hasIncomingFaceId(), false);
	BOOST_CHECK_EQUAL(face2_receivedInterests[0].getLocalControlHeader().hasNextHopFaceId(), false);

	BOOST_CHECK_EQUAL(face2_receivedDatas[0].getLocalControlHeader().hasIncomingFaceId(), false);
	BOOST_CHECK_EQUAL(face2_receivedDatas[0].getLocalControlHeader().hasNextHopFaceId(), false);

	////////////////////////////////////////////////////////

	using namespace boost::asio;

	std::vector<const_buffer> interestWithHeader;
	Block iHeader = interest1->getLocalControlHeader().wireEncode(*interest1, true, true);
	Block iPayload = interest1->wireEncode();
	interestWithHeader.push_back(buffer(iHeader.wire(), iHeader.size()));
	interestWithHeader.push_back(buffer(iPayload.wire(), iPayload.size()));

	std::vector<const_buffer> dataWithHeader;
	Block dHeader = data1->getLocalControlHeader().wireEncode(*data1, true, true);
	Block dPayload = data1->wireEncode();
	dataWithHeader.push_back(buffer(dHeader.wire(), dHeader.size()));
	dataWithHeader.push_back(buffer(dPayload.wire(), dPayload.size()));

	//

	client->async_send(interestWithHeader, bind(&noOp));
	client->async_send(dataWithHeader, bind(&noOp));

	BOOST_CHECK_MESSAGE(limitedIo.run(2, time::seconds(1)) == LimitedIo::EXCEED_OPS,
	"UnixStreamChannel error: cannot send or receive Interest/Data packets");

	BOOST_REQUIRE_EQUAL(face1_receivedInterests.size(), 1);
	BOOST_REQUIRE_EQUAL(face1_receivedDatas .size(), 1);

	BOOST_CHECK_EQUAL(face1_receivedInterests[0].getLocalControlHeader().hasIncomingFaceId(), false);
	BOOST_CHECK_EQUAL(face1_receivedInterests[0].getLocalControlHeader().hasNextHopFaceId(), true);
	BOOST_CHECK_EQUAL(face1_receivedInterests[0].getNextHopFaceId(), 111);

	BOOST_CHECK_EQUAL(face1_receivedDatas[0].getLocalControlHeader().hasIncomingFaceId(), false);
	BOOST_CHECK_EQUAL(face1_receivedDatas[0].getLocalControlHeader().hasNextHopFaceId(), false);
	}


	class SimpleEndToEndFixture : protected BaseFixture
	{
	public:
	void
	onFaceCreated(const shared_ptr<Face>& face)
	{
	face->onReceiveInterest +=
	bind(&SimpleEndToEndFixture::onReceiveInterest, this, _1);
	face->onReceiveData +=
	bind(&SimpleEndToEndFixture::onReceiveData, this, _1);
	face->onFail +=
	bind(&SimpleEndToEndFixture::onFail, this, face);

	if (static_cast<bool>(dynamic_pointer_cast<LocalFace>(face))) {
	static_pointer_cast<LocalFace>(face)->setLocalControlHeaderFeature(
	LOCAL_CONTROL_FEATURE_INCOMING_FACE_ID);

	static_pointer_cast<LocalFace>(face)->setLocalControlHeaderFeature(
	LOCAL_CONTROL_FEATURE_NEXT_HOP_FACE_ID);
	}

	limitedIo.afterOp();
	}

	void
	onConnectFailed(const std::string& reason)
	{
	BOOST_CHECK_MESSAGE(false, reason);

	limitedIo.afterOp();
	}

	void
	onReceiveInterest(const Interest& interest)
	{
	receivedInterests.push_back(interest);

	limitedIo.afterOp();
	}

	void
	onReceiveData(const Data& data)
	{
	receivedDatas.push_back(data);

	limitedIo.afterOp();
	}

	void
	onFail(const shared_ptr<Face>& face)
	{
	limitedIo.afterOp();
	}

	public:
	LimitedIo limitedIo;

	std::vector<Interest> receivedInterests;
	std::vector<Data> receivedDatas;
	};


	BOOST_FIXTURE_TEST_CASE_TEMPLATE(CorruptedInput, Dataset,
	CorruptedPackets, SimpleEndToEndFixture)
	{
	UnixStreamFactory factory;

	shared_ptr<UnixStreamChannel> channel = factory.createChannel(CHANNEL_PATH1);
	channel->listen(bind(&SimpleEndToEndFixture::onFaceCreated, this, _1),
	bind(&SimpleEndToEndFixture::onConnectFailed, this, _1));

	DummyStreamSender<stream_protocol, Dataset> sender;
	sender.start(stream_protocol::endpoint(CHANNEL_PATH1));

	BOOST_CHECK_MESSAGE(limitedIo.run(LimitedIo::UNLIMITED_OPS,
	time::seconds(1)) == LimitedIo::EXCEED_TIME,
	"Exception thrown for " + Dataset::getName());
	}


	BOOST_AUTO_TEST_SUITE_END()

	} // namespace tests
	} // namespace nfd