text: /* -*- Mode:C++; c-file-style:"gnu"; indent-tabs-mode:nil; -*- */
  /*
   * Copyright (c) 2013-2022 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/block-helpers.hpp"
  #include "ndn-cxx/name.hpp"
  
  #include "tests/boost-test.hpp"
  
  namespace ndn {
  namespace encoding {
  namespace tests {
  
  BOOST_AUTO_TEST_SUITE(Encoding)
  BOOST_AUTO_TEST_SUITE(TestBlockHelpers)
  
  enum E8 : uint8_t
  {
    E8_NONE
  };
  
  enum class EC8 : uint8_t
  {
    NONE
  };
  
  enum E16 : uint16_t
  {
    E16_NONE
  };
  
  enum class EC16 : uint16_t
  {
    NONE
  };
  
  BOOST_AUTO_TEST_CASE(NonNegativeInteger)
  {
    Block b = makeNonNegativeIntegerBlock(100, 1000);
    BOOST_CHECK_EQUAL(b.type(), 100);
    BOOST_CHECK_GT(b.value_size(), 0);
    BOOST_CHECK_EQUAL(readNonNegativeInteger(b), 1000);
  
    BOOST_CHECK_THROW(readNonNegativeInteger(Block()), tlv::Error);
  
    BOOST_CHECK_THROW(readNonNegativeIntegerAs<uint8_t>(b), tlv::Error);
    BOOST_CHECK_EQUAL(readNonNegativeIntegerAs<uint16_t>(b), 1000);
    BOOST_CHECK_EQUAL(readNonNegativeIntegerAs<size_t>(b), 1000);
    BOOST_CHECK_THROW(readNonNegativeIntegerAs<E8>(b), tlv::Error);
    BOOST_CHECK_EQUAL(static_cast<uint16_t>(readNonNegativeIntegerAs<E16>(b)), 1000);
    BOOST_CHECK_THROW(readNonNegativeIntegerAs<EC8>(b), tlv::Error);
    BOOST_CHECK_EQUAL(static_cast<uint16_t>(readNonNegativeIntegerAs<EC16>(b)), 1000);
  }
  
  BOOST_AUTO_TEST_CASE(Empty)
  {
    Block b = makeEmptyBlock(200);
    BOOST_CHECK_EQUAL(b.type(), 200);
    BOOST_CHECK_EQUAL(b.value_size(), 0);
  }
  
  BOOST_AUTO_TEST_CASE(String)
  {
    Block b = makeStringBlock(100, "Hello, world!");
    BOOST_CHECK_EQUAL(b.type(), 100);
    BOOST_CHECK_GT(b.value_size(), 0);
    BOOST_CHECK_EQUAL(readString(b), "Hello, world!");
  }
  
  BOOST_AUTO_TEST_CASE(Double)
  {
    const double f = 0.25;
    Block b = makeDoubleBlock(100, f);
    BOOST_CHECK_EQUAL(b, "64083FD0000000000000"_block);
  
    EncodingEstimator estimator;
    size_t totalLength = prependDoubleBlock(estimator, 100, f);
    EncodingBuffer encoder(totalLength, 0);
    prependDoubleBlock(encoder, 100, f);
    BOOST_CHECK_EQUAL(encoder.block(), b);
  
    BOOST_CHECK_EQUAL(readDouble(b), f);
    BOOST_CHECK_THROW(readDouble("4200"_block), tlv::Error);
    BOOST_CHECK_THROW(readDouble("64043E800000"_block), tlv::Error);
  }
  
  BOOST_AUTO_TEST_CASE(Binary)
  {
    std::string buf1{1, 1, 1, 1};
    const uint8_t buf2[]{1, 1, 1, 1};
    std::list<uint8_t> buf3{1, 1, 1, 1};
  
    Block b1 = makeBinaryBlock(100, buf1.data(), buf1.size()); // char* overload
    Block b2 = makeBinaryBlock(100, buf2);                     // span overload
    Block b3 = makeBinaryBlock(100, buf1.begin(), buf1.end()); // fast encoding (random access iterator)
    Block b4 = makeBinaryBlock(100, buf3.begin(), buf3.end()); // slow encoding (general iterator)
  
    BOOST_CHECK_EQUAL(b1, b2);
    BOOST_CHECK_EQUAL(b1, b3);
    BOOST_CHECK_EQUAL(b1, b4);
    BOOST_CHECK_EQUAL(b1.type(), 100);
    BOOST_CHECK_EQUAL(b1.value_size(), buf1.size());
    BOOST_CHECK_EQUAL_COLLECTIONS(b1.value_begin(), b1.value_end(), buf2, buf2 + sizeof(buf2));
  
    EncodingEstimator estimator;
    size_t length = prependBinaryBlock(estimator, 100, buf2);
    BOOST_CHECK_EQUAL(length, 6);
  
    EncodingBuffer encoder(length, 0);
    BOOST_CHECK_EQUAL(prependBinaryBlock(encoder, 100, buf2), 6);
    BOOST_CHECK_EQUAL(encoder.block(), b1);
  }
  
  BOOST_AUTO_TEST_CASE(PrependBlock)
  {
    EncodingEstimator estimator;
    Block b1({0x01, 0x03, 0x00, 0x00, 0x00});
    size_t length = prependBlock(estimator, b1);
    BOOST_CHECK_EQUAL(length, 5);
    Block b2(100, b1);
    length += prependBlock(estimator, b2);
    BOOST_CHECK_EQUAL(length, 12);
  
    EncodingBuffer encoder(length, 0);
    BOOST_CHECK_EQUAL(prependBlock(encoder, b1), 5);
    BOOST_CHECK_EQUAL(prependBlock(encoder, b2), 7);
    BOOST_CHECK_EQUAL(encoder.size(), 12);
    encoder.prependVarNumber(encoder.size());
    encoder.prependVarNumber(200);
    BOOST_CHECK_EQUAL(encoder.block(), "C80C 64050103000000 0103000000"_block);
  }
  
  BOOST_AUTO_TEST_CASE(Nested)
  {
    Name name("ndn:/Hello/World!");
    Block b1 = makeNestedBlock(100, name);
  
    BOOST_CHECK_EQUAL(b1.type(), 100);
    b1.parse();
    BOOST_CHECK_EQUAL(b1.elements().size(), 1);
    BOOST_CHECK_EQUAL(b1.elements().begin()->type(), name.wireEncode().type());
    BOOST_CHECK_EQUAL(*b1.elements().begin(), name.wireEncode());
  }
  
  BOOST_AUTO_TEST_CASE(NestedSequence)
  {
    std::vector<Name> names;
    names.emplace_back("/A");
    names.emplace_back("/B");
    Block b1 = makeNestedBlock(100, names.begin(), names.end());
  
    BOOST_CHECK_EQUAL(b1.type(), 100);
    b1.parse();
    auto elements = b1.elements();
    BOOST_REQUIRE_EQUAL(elements.size(), 2);
    BOOST_CHECK_EQUAL(Name(elements[0]), names[0]);
    BOOST_CHECK_EQUAL(Name(elements[1]), names[1]);
  }
  
  BOOST_AUTO_TEST_SUITE_END() // TestBlockHelpers
  BOOST_AUTO_TEST_SUITE_END() // Encoding
  
  } // namespace tests
  } // namespace encoding
  } // namespace ndn
  