diff --git a/tests/chunks/pipeline-interests-fixed.t.cpp b/tests/chunks/pipeline-interests-fixed.t.cpp
new file mode 100644
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+++ b/tests/chunks/pipeline-interests-fixed.t.cpp
@@ -0,0 +1,314 @@
+/* -*- Mode:C++; c-file-style:"gnu"; indent-tabs-mode:nil; -*- */
+/*
+ * Copyright (c) 2016-2019, 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 Chavoosh Ghasemi
+ */
+
+#include "tools/chunks/catchunks/pipeline-interests-fixed.hpp"
+#include "tools/chunks/catchunks/data-fetcher.hpp"
+
+#include "pipeline-interests-fixture.hpp"
+
+namespace ndn {
+namespace chunks {
+namespace tests {
+
+class PipelineInterestFixedFixture : public PipelineInterestsFixture
+{
+public:
+  PipelineInterestFixedFixture()
+    : opt(makeOptions())
+  {
+    createPipeline();
+  }
+
+  void
+  createPipeline()
+  {
+    auto pline = make_unique<PipelineInterestsFixed>(face, opt);
+    pipeline = pline.get();
+    setPipeline(std::move(pline));
+  }
+
+private:
+  static PipelineInterestsFixed::Options
+  makeOptions()
+  {
+    PipelineInterestsFixed::Options options;
+    options.isQuiet = true;
+    options.isVerbose = false;
+    options.interestLifetime = time::seconds(1);
+    options.maxRetriesOnTimeoutOrNack = 3;
+    options.maxPipelineSize = 5;
+    return options;
+  }
+
+protected:
+  PipelineInterestsFixed::Options opt;
+  PipelineInterestsFixed* pipeline;
+};
+
+BOOST_AUTO_TEST_SUITE(Chunks)
+BOOST_FIXTURE_TEST_SUITE(TestPipelineInterestsFixed, PipelineInterestFixedFixture)
+
+BOOST_AUTO_TEST_CASE(FullPipeline)
+{
+  nDataSegments = 13;
+  BOOST_ASSERT(nDataSegments > opt.maxPipelineSize);
+
+  run(name);
+  advanceClocks(io, time::nanoseconds(1), 1);
+  BOOST_REQUIRE_EQUAL(face.sentInterests.size(), opt.maxPipelineSize);
+
+  for (uint64_t i = 0; i < nDataSegments - 1; ++i) {
+    face.receive(*makeDataWithSegment(i));
+    advanceClocks(io, time::nanoseconds(1), 1);
+    BOOST_CHECK_EQUAL(pipeline->m_nReceived, i + 1);
+
+    if (i < nDataSegments - opt.maxPipelineSize) {
+      BOOST_REQUIRE_EQUAL(face.sentInterests.size(), opt.maxPipelineSize + i + 1);
+      // check if the interest for the segment i is well formed
+      const auto& sentInterest = face.sentInterests[i];
+      BOOST_CHECK_EQUAL(sentInterest.getExclude().size(), 0);
+      BOOST_CHECK_EQUAL(sentInterest.getMaxSuffixComponents(), 1);
+      BOOST_CHECK_EQUAL(sentInterest.getMustBeFresh(), opt.mustBeFresh);
+      BOOST_CHECK_EQUAL(Name(name).isPrefixOf(sentInterest.getName()), true);
+      BOOST_CHECK_EQUAL(getSegmentFromPacket(sentInterest), i);
+    }
+    else {
+      // all the interests have been sent for all the segments
+      BOOST_CHECK_EQUAL(face.sentInterests.size(), nDataSegments);
+    }
+  }
+
+  BOOST_CHECK_EQUAL(hasFailed, false);
+
+  advanceClocks(io, ndn::DEFAULT_INTEREST_LIFETIME, opt.maxRetriesOnTimeoutOrNack + 1);
+  BOOST_CHECK_EQUAL(hasFailed, true);
+}
+
+BOOST_AUTO_TEST_CASE(TimeoutAllSegments)
+{
+  nDataSegments = 13;
+  BOOST_ASSERT(nDataSegments > opt.maxPipelineSize);
+
+  run(name);
+  advanceClocks(io, time::nanoseconds(1), 1);
+  BOOST_REQUIRE_EQUAL(face.sentInterests.size(), opt.maxPipelineSize);
+
+  for (int i = 0; i < opt.maxRetriesOnTimeoutOrNack; ++i) {
+    advanceClocks(io, opt.interestLifetime, 1);
+    BOOST_REQUIRE_EQUAL(face.sentInterests.size(), opt.maxPipelineSize * (i + 2));
+    BOOST_CHECK_EQUAL(pipeline->m_nReceived, 0);
+
+    // A single retry for every pipeline element
+    for (size_t j = 0; j < opt.maxPipelineSize; ++j) {
+      const auto& interest = face.sentInterests[(opt.maxPipelineSize * (i + 1)) + j];
+      BOOST_CHECK_EQUAL(static_cast<size_t>(getSegmentFromPacket(interest)), j);
+    }
+  }
+
+  advanceClocks(io, opt.interestLifetime, 1);
+  BOOST_CHECK_EQUAL(hasFailed, true);
+}
+
+BOOST_AUTO_TEST_CASE(TimeoutAfterFinalBlockIdReceived)
+{
+  // the FinalBlockId is sent with the first segment, after the first segment failure the pipeline
+  // should fail
+
+  nDataSegments = 18;
+  BOOST_ASSERT(nDataSegments > opt.maxPipelineSize);
+
+  run(name);
+  advanceClocks(io, time::nanoseconds(1), 1);
+  BOOST_REQUIRE_EQUAL(face.sentInterests.size(), opt.maxPipelineSize);
+
+  // send a single segment for each pipeline element but not the first element
+  advanceClocks(io, opt.interestLifetime, 1);
+  for (uint64_t i = 1; i < opt.maxPipelineSize; ++i) {
+    face.receive(*makeDataWithSegment(i));
+    advanceClocks(io, time::nanoseconds(1), 1);
+  }
+
+  // send a single data packet for each pipeline element
+  advanceClocks(io, opt.interestLifetime, opt.maxRetriesOnTimeoutOrNack - 1);
+  for (uint64_t i = 0; i < opt.maxPipelineSize; ++i) {
+    face.receive(*makeDataWithSegment(opt.maxPipelineSize + i));
+    advanceClocks(io, time::nanoseconds(1), 1);
+  }
+  advanceClocks(io, opt.interestLifetime, 1);
+
+  size_t interestAfterFailure = face.sentInterests.size();
+
+  BOOST_CHECK_EQUAL(face.getNPendingInterests(), 0);
+  BOOST_CHECK_EQUAL(hasFailed, true);
+
+  // these new segments should not generate new interests
+  advanceClocks(io, opt.interestLifetime, 1);
+  for (uint64_t i = 0; i < opt.maxPipelineSize; ++i) {
+    face.receive(*makeDataWithSegment(opt.maxPipelineSize * 2 + i - 1));
+    advanceClocks(io, time::nanoseconds(1), 1);
+  }
+
+  // no more interests after a failure
+  advanceClocks(io, opt.interestLifetime, opt.maxRetriesOnTimeoutOrNack);
+  BOOST_CHECK_EQUAL(interestAfterFailure, face.sentInterests.size());
+  BOOST_CHECK_EQUAL(face.getNPendingInterests(), 0);
+}
+
+BOOST_AUTO_TEST_CASE(TimeoutBeforeFinalBlockIdReceived)
+{
+  // the FinalBlockId is sent only with the last segment, all segments are sent except for the
+  // second one (segment #1); all segments are received correctly until the FinalBlockId is received
+
+  nDataSegments = 22;
+  BOOST_ASSERT(nDataSegments > opt.maxPipelineSize);
+
+  run(name);
+  advanceClocks(io, time::nanoseconds(1), 1);
+  BOOST_REQUIRE_EQUAL(face.sentInterests.size(), opt.maxPipelineSize);
+
+  advanceClocks(io, opt.interestLifetime, 1);
+  for (uint64_t i = 2; i < opt.maxPipelineSize; ++i) {
+    face.receive(*makeDataWithSegment(i, false));
+    advanceClocks(io, time::nanoseconds(1), 1);
+
+    const auto& lastInterest = face.sentInterests.back();
+    BOOST_CHECK_EQUAL(getSegmentFromPacket(lastInterest), opt.maxPipelineSize + i - 2);
+  }
+  BOOST_REQUIRE_EQUAL(face.sentInterests.size(), opt.maxPipelineSize * 3 - 2);
+
+  // nack for the first pipeline element (segment #0)
+  auto nack = make_shared<lp::Nack>(face.sentInterests[opt.maxPipelineSize]);
+  nack->setReason(lp::NackReason::DUPLICATE);
+  face.receive(*nack);
+
+  // all the pipeline elements are two retries near the timeout error, but not the
+  // second (segment #1) that is only one retry near the timeout
+  advanceClocks(io, opt.interestLifetime, opt.maxRetriesOnTimeoutOrNack - 1);
+  BOOST_CHECK_EQUAL(hasFailed, false);
+
+  // data for the first pipeline element (segment #0)
+  face.receive(*makeDataWithSegment(0, false));
+  BOOST_CHECK_EQUAL(hasFailed, false);
+
+  // data for all the pipeline element, but not the second (segment #1)
+  for (uint64_t i = opt.maxPipelineSize; i < nDataSegments; ++i) {
+    if (i == nDataSegments - 1) {
+      face.receive(*makeDataWithSegment(i, true));
+    }
+    else {
+      face.receive(*makeDataWithSegment(i, false));
+    }
+    advanceClocks(io, time::nanoseconds(1), 1);
+  }
+  // timeout for the second pipeline element (segment #1), this should trigger an error
+  advanceClocks(io, opt.interestLifetime, 1);
+
+  BOOST_CHECK_EQUAL(pipeline->m_nReceived, nDataSegments - 1);
+  BOOST_CHECK_EQUAL(hasFailed, true);
+}
+
+BOOST_AUTO_TEST_CASE(SegmentReceivedAfterTimeout)
+{
+  // the FinalBlockId is never sent, all the pipeline elements with a segment number greater than
+  // segment #0 will fail, after this failure also segment #0 fail and this should trigger an error
+
+  nDataSegments = 22;
+  BOOST_ASSERT(nDataSegments > opt.maxPipelineSize);
+
+  run(name);
+  advanceClocks(io, time::nanoseconds(1), 1);
+  BOOST_REQUIRE_EQUAL(face.sentInterests.size(), opt.maxPipelineSize);
+
+  advanceClocks(io, opt.interestLifetime, 1);
+
+  // nack for the first pipeline element (segment #0)
+  auto nack = make_shared<lp::Nack>(face.sentInterests[opt.maxPipelineSize]);
+  nack->setReason(lp::NackReason::DUPLICATE);
+  face.receive(*nack);
+  BOOST_CHECK_EQUAL(hasFailed, false);
+
+  // timeout for all the pipeline elements, but not the first (segment #0)
+  advanceClocks(io, opt.interestLifetime, opt.maxRetriesOnTimeoutOrNack);
+  BOOST_CHECK_EQUAL(hasFailed, false);
+
+  // data for the first pipeline element (segment #0), this should trigger an error because the
+  // other pipeline elements failed
+  face.receive(*makeDataWithSegment(0, false));
+  advanceClocks(io, time::nanoseconds(1), 1);
+
+  BOOST_CHECK_EQUAL(pipeline->m_nReceived, 1);
+  BOOST_CHECK_EQUAL(hasFailed, true);
+}
+
+BOOST_AUTO_TEST_CASE(CongestionAllSegments)
+{
+  nDataSegments = 13;
+  BOOST_ASSERT(nDataSegments > opt.maxPipelineSize);
+
+  run(name);
+  advanceClocks(io, time::nanoseconds(1), 1);
+  BOOST_REQUIRE_EQUAL(face.sentInterests.size(), opt.maxPipelineSize);
+
+  // send nack for all the pipeline elements first interest
+  for (size_t i = 0; i < opt.maxPipelineSize; i++) {
+    auto nack = make_shared<lp::Nack>(face.sentInterests[i]);
+    nack->setReason(lp::NackReason::CONGESTION);
+    face.receive(*nack);
+    advanceClocks(io, time::nanoseconds(1), 1);
+  }
+
+  // send nack for all the pipeline elements interests after the first
+  for (int i = 1; i <= opt.maxRetriesOnTimeoutOrNack; ++i) {
+    time::milliseconds backoffTime(static_cast<uint64_t>(std::pow(2, i)));
+    if (backoffTime > DataFetcher::MAX_CONGESTION_BACKOFF_TIME)
+      backoffTime = DataFetcher::MAX_CONGESTION_BACKOFF_TIME;
+
+    advanceClocks(io, backoffTime, 1);
+    BOOST_REQUIRE_EQUAL(face.sentInterests.size(), opt.maxPipelineSize * (i +1));
+
+    // A single retry for every pipeline element
+    for (size_t j = 0; j < opt.maxPipelineSize; ++j) {
+      const auto& interest = face.sentInterests[(opt.maxPipelineSize * i) + j];
+      BOOST_CHECK_LT(static_cast<size_t>(getSegmentFromPacket(interest)), opt.maxPipelineSize);
+    }
+
+    for (size_t j = 0; j < opt.maxPipelineSize; j++) {
+      auto nack = make_shared<lp::Nack>(face.sentInterests[(opt.maxPipelineSize * i) + j]);
+      nack->setReason(lp::NackReason::CONGESTION);
+      face.receive(*nack);
+      advanceClocks(io, time::nanoseconds(1), 1);
+    }
+  }
+
+  BOOST_CHECK_EQUAL(hasFailed, true);
+}
+
+BOOST_AUTO_TEST_SUITE_END() // TestPipelineInterests
+BOOST_AUTO_TEST_SUITE_END() // Chunks
+
+} // namespace tests
+} // namespace chunks
+} // namespace ndn