chunks: modularize pipeline implementation

Change-Id: Iaa5acbb02a583858db6204716947cceeae793a65
Refs: #3636
diff --git a/tests/chunks/pipeline-interests-fixture.hpp b/tests/chunks/pipeline-interests-fixture.hpp
new file mode 100644
index 0000000..8da4dc1
--- /dev/null
+++ b/tests/chunks/pipeline-interests-fixture.hpp
@@ -0,0 +1,104 @@
+/* -*- Mode:C++; c-file-style:"gnu"; indent-tabs-mode:nil; -*- */
+/**
+ * Copyright (c) 2016,  Regents of the University of California,
+ *                      Colorado State University,
+ *                      University Pierre & Marie Curie, Sorbonne University.
+ *
+ * This file is part of ndn-tools (Named Data Networking Essential Tools).
+ * See AUTHORS.md for complete list of ndn-tools authors and contributors.
+ *
+ * ndn-tools 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.
+ *
+ * ndn-tools 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
+ * ndn-tools, e.g., in COPYING.md file.  If not, see <http://www.gnu.org/licenses/>.
+ *
+ * See AUTHORS.md for complete list of ndn-cxx authors and contributors.
+ *
+ * @author Andrea Tosatto
+ * @author Weiwei Liu
+ */
+
+#ifndef NDN_TOOLS_TESTS_CHUNKS_PIPELINE_INTERESTS_FIXTURE_HPP
+#define NDN_TOOLS_TESTS_CHUNKS_PIPELINE_INTERESTS_FIXTURE_HPP
+
+#include "tools/chunks/catchunks/pipeline-interests.hpp"
+
+#include "tests/test-common.hpp"
+#include <ndn-cxx/util/dummy-client-face.hpp>
+
+namespace ndn {
+namespace chunks {
+namespace tests {
+
+using namespace ndn::tests;
+
+class PipelineInterestsFixture : public UnitTestTimeFixture
+{
+public:
+  PipelineInterestsFixture()
+    : face(io)
+    , name("/ndn/chunks/test")
+    , nDataSegments(0)
+    , nReceivedSegments(0)
+    , hasFailed(false)
+  {
+  }
+
+protected:
+  void
+  setPipeline(unique_ptr<PipelineInterests> pline)
+  {
+    pipeline = std::move(pline);
+  }
+
+  shared_ptr<Data>
+  makeDataWithSegment(uint64_t segmentNo, bool setFinalBlockId = true) const
+  {
+    auto data = make_shared<Data>(Name(name).appendVersion(0).appendSegment(segmentNo));
+    if (setFinalBlockId)
+      data->setFinalBlockId(name::Component::fromSegment(nDataSegments - 1));
+    return signData(data);
+  }
+
+  void
+  runWithData(const Data& data)
+  {
+    pipeline->run(data,
+                  bind(&PipelineInterestsFixture::onData, this, _1, _2),
+                  bind(&PipelineInterestsFixture::onFailure, this, _1));
+  }
+
+private:
+  void
+  onData(const Interest& interest, const Data& data)
+  {
+    nReceivedSegments++;
+  }
+
+  void
+  onFailure(const std::string& reason)
+  {
+    hasFailed = true;
+  }
+
+protected:
+  boost::asio::io_service io;
+  util::DummyClientFace face;
+  Name name;
+  unique_ptr<PipelineInterests> pipeline;
+  uint64_t nDataSegments;
+  uint64_t nReceivedSegments;
+  bool hasFailed;
+};
+
+} // namespace tests
+} // namespace chunks
+} // namespace ndn
+
+#endif // NDN_TOOLS_TESTS_CHUNKS_PIPELINE_INTERESTS_FIXTURE_HPP