tests/unit/encoding/estimator.t.cpp

/* -*- Mode:C++; c-file-style:"gnu"; indent-tabs-mode:nil; -*- */
/*
 * Copyright (c) 2013-2023 Regents of the University of California.
 *
 * This file is part of ndn-cxx library (NDN C++ library with eXperimental eXtensions).
 *
 * ndn-cxx library is free software: you can redistribute it and/or modify it under the
 * terms of the GNU Lesser General Public License as published by the Free Software
 * Foundation, either version 3 of the License, or (at your option) any later version.
 *
 * ndn-cxx library 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 Lesser General Public License for more details.
 *
 * You should have received copies of the GNU General Public License and GNU Lesser
 * General Public License along with ndn-cxx, 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.
 */

#include "ndn-cxx/encoding/estimator.hpp"

#include "tests/boost-test.hpp"

namespace ndn::tests {

using namespace ndn::encoding;

BOOST_AUTO_TEST_SUITE(Encoding)
BOOST_AUTO_TEST_SUITE(TestEstimator)

BOOST_AUTO_TEST_CASE(Basic)
{
  Estimator e;

  BOOST_CHECK_EQUAL(e.prependBytes({1}), 1);
  BOOST_CHECK_EQUAL(e.appendBytes({1}), 1);

  const uint8_t buf1[] = {'t', 'e', 's', 't', '1'};
  BOOST_CHECK_EQUAL(e.prependBytes(buf1), 5);
  BOOST_CHECK_EQUAL(e.appendBytes(buf1), 5);

  std::vector<uint8_t> buf2 = {'t', 'e', 's', 't', '2'};
  BOOST_CHECK_EQUAL(e.prependBytes(buf2), 5);
  BOOST_CHECK_EQUAL(e.appendBytes(buf2), 5);
  BOOST_CHECK_EQUAL(e.prependRange(buf2.begin(), buf2.end()), 5);
  BOOST_CHECK_EQUAL(e.appendRange(buf2.begin(), buf2.end()), 5);

  std::list<uint8_t> buf3 = {'t', 'e', 's', 't', '2'};
  BOOST_CHECK_EQUAL(e.prependRange(buf3.begin(), buf3.end()), 5);
  BOOST_CHECK_EQUAL(e.appendRange(buf3.begin(), buf3.end()), 5);
}

BOOST_AUTO_TEST_CASE(Tlv)
{
  Estimator e;

  // VarNumber

  BOOST_CHECK_EQUAL(e.prependVarNumber(1), 1);
  BOOST_CHECK_EQUAL(e.appendVarNumber(1), 1);

  BOOST_CHECK_EQUAL(e.prependVarNumber(252), 1);
  BOOST_CHECK_EQUAL(e.appendVarNumber(252), 1);

  BOOST_CHECK_EQUAL(e.prependVarNumber(253), 3);
  BOOST_CHECK_EQUAL(e.appendVarNumber(253), 3);

  BOOST_CHECK_EQUAL(e.prependVarNumber(65536), 5);
  BOOST_CHECK_EQUAL(e.appendVarNumber(65536), 5);

  BOOST_CHECK_EQUAL(e.prependVarNumber(4294967296LL), 9);
  BOOST_CHECK_EQUAL(e.appendVarNumber(4294967296LL), 9);

  // NonNegativeInteger

  BOOST_CHECK_EQUAL(e.prependNonNegativeInteger(1), 1);
  BOOST_CHECK_EQUAL(e.appendNonNegativeInteger(1), 1);

  BOOST_CHECK_EQUAL(e.prependNonNegativeInteger(252), 1);
  BOOST_CHECK_EQUAL(e.appendNonNegativeInteger(252), 1);

  BOOST_CHECK_EQUAL(e.prependNonNegativeInteger(253), 1);
  BOOST_CHECK_EQUAL(e.appendNonNegativeInteger(253), 1);

  BOOST_CHECK_EQUAL(e.prependNonNegativeInteger(255), 1);
  BOOST_CHECK_EQUAL(e.appendNonNegativeInteger(255), 1);

  BOOST_CHECK_EQUAL(e.prependNonNegativeInteger(256), 2);
  BOOST_CHECK_EQUAL(e.appendNonNegativeInteger(256), 2);

  BOOST_CHECK_EQUAL(e.prependNonNegativeInteger(65535), 2);
  BOOST_CHECK_EQUAL(e.appendNonNegativeInteger(65535), 2);

  BOOST_CHECK_EQUAL(e.prependNonNegativeInteger(65536), 4);
  BOOST_CHECK_EQUAL(e.appendNonNegativeInteger(65536), 4);

  BOOST_CHECK_EQUAL(e.prependNonNegativeInteger(4294967296LL), 8);
  BOOST_CHECK_EQUAL(e.appendNonNegativeInteger(4294967296LL), 8);
}

BOOST_AUTO_TEST_SUITE_END() // TestEstimator
BOOST_AUTO_TEST_SUITE_END() // Encoding

} // namespace ndn::tests