tests: UnixStreamTransport test suite improvements

refs #3305

Change-Id: I6c6ca52a5e80266920ded811ff45fc568c3e59b9
diff --git a/tests/daemon/face/tcp-transport-fixture.hpp b/tests/daemon/face/tcp-transport-fixture.hpp
new file mode 100644
index 0000000..03594a1
--- /dev/null
+++ b/tests/daemon/face/tcp-transport-fixture.hpp
@@ -0,0 +1,116 @@
+/* -*- Mode:C++; c-file-style:"gnu"; indent-tabs-mode:nil; -*- */
+/**
+ * Copyright (c) 2014-2015,  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/>.
+ */
+
+#ifndef NFD_TESTS_DAEMON_FACE_TCP_TRANSPORT_FIXTURE_HPP
+#define NFD_TESTS_DAEMON_FACE_TCP_TRANSPORT_FIXTURE_HPP
+
+#include "face/tcp-transport.hpp"
+#include "face/lp-face.hpp"
+
+#include "dummy-receive-link-service.hpp"
+#include "get-available-interface-ip.hpp"
+#include "transport-test-common.hpp"
+
+#include "tests/limited-io.hpp"
+
+namespace nfd {
+namespace face {
+namespace tests {
+
+using namespace nfd::tests;
+namespace ip = boost::asio::ip;
+using ip::tcp;
+
+class TcpTransportFixture : public BaseFixture
+{
+protected:
+  TcpTransportFixture()
+    : transport(nullptr)
+    , remoteSocket(g_io)
+    , receivedPackets(nullptr)
+    , acceptor(g_io)
+  {
+  }
+
+  void
+  initialize(ip::address address = ip::address_v4::loopback())
+  {
+    tcp::endpoint remoteEp(address, 7070);
+    acceptor.open(remoteEp.protocol());
+    acceptor.set_option(tcp::acceptor::reuse_address(true));
+    acceptor.bind(remoteEp);
+    acceptor.listen(1);
+    acceptor.async_accept(remoteSocket, [this] (const boost::system::error_code& error) {
+      BOOST_REQUIRE_EQUAL(error, boost::system::errc::success);
+      limitedIo.afterOp();
+    });
+
+    tcp::socket sock(g_io);
+    sock.async_connect(remoteEp, [this] (const boost::system::error_code& error) {
+      BOOST_REQUIRE_EQUAL(error, boost::system::errc::success);
+      limitedIo.afterOp();
+    });
+
+    BOOST_REQUIRE_EQUAL(limitedIo.run(2, time::seconds(1)), LimitedIo::EXCEED_OPS);
+
+    localEp = sock.local_endpoint();
+    face = make_unique<LpFace>(make_unique<DummyReceiveLinkService>(),
+                               make_unique<TcpTransport>(std::move(sock),
+                                                         ndn::nfd::FACE_PERSISTENCY_PERSISTENT));
+    transport = static_cast<TcpTransport*>(face->getTransport());
+    receivedPackets = &static_cast<DummyReceiveLinkService*>(face->getLinkService())->receivedPackets;
+
+    BOOST_REQUIRE_EQUAL(transport->getState(), TransportState::UP);
+  }
+
+  void
+  remoteWrite(const ndn::Buffer& buf, bool needToCheck = true)
+  {
+    boost::asio::async_write(remoteSocket, boost::asio::buffer(buf),
+      [needToCheck] (const boost::system::error_code& error, size_t) {
+        if (needToCheck) {
+          BOOST_REQUIRE_EQUAL(error, boost::system::errc::success);
+        }
+      });
+    limitedIo.defer(time::milliseconds(50));
+  }
+
+protected:
+  LimitedIo limitedIo;
+  TcpTransport* transport;
+  tcp::endpoint localEp;
+  tcp::socket remoteSocket;
+  std::vector<Transport::Packet>* receivedPackets;
+
+private:
+  tcp::acceptor acceptor;
+  unique_ptr<LpFace> face;
+};
+
+} // namespace tests
+} // namespace face
+} // namespace nfd
+
+#endif // NFD_TESTS_DAEMON_FACE_TCP_TRANSPORT_FIXTURE_HPP