/home/mhx/git/github/libmoost/test/algorithm/variable_length_encoding.cpp

Go to the documentation of this file.

/* vim:set ts=3 sw=3 sts=3 et: */
#include <boost/test/unit_test.hpp>
#include <boost/test/test_tools.hpp>

#include <limits>
#include <vector>

#include "../../include/moost/algorithm/variable_length_encoding.hpp"

using namespace moost::algorithm;

BOOST_AUTO_TEST_SUITE( variable_length_encoding_test )

BOOST_AUTO_TEST_CASE( test_in_out )
{
  std::vector<char> data;

  std::back_insert_iterator< std::vector<char> > data_out(data);

  variable_length_encoding::write(123, data_out);

  std::vector<char>::iterator it = data.begin();
  int i;
  variable_length_encoding::read(i, it);
  BOOST_CHECK_EQUAL(i, 123);
  BOOST_CHECK(it == data.end());
}

BOOST_AUTO_TEST_CASE( test_zero )
{
  std::vector<char> data;

  std::back_insert_iterator< std::vector<char> > data_out(data);

  variable_length_encoding::write(0, data_out);

  std::vector<char>::iterator it = data.begin();
  int i;
  variable_length_encoding::read(i, it);
  BOOST_CHECK_EQUAL(i, 0);
  BOOST_CHECK(it == data.end());
  BOOST_CHECK_EQUAL(data.size(), 1);
}

BOOST_AUTO_TEST_CASE( test_limits_min )
{
  std::vector<char> data;

  std::back_insert_iterator< std::vector<char> > data_out(data);

  variable_length_encoding::write(std::numeric_limits<int>::min(), data_out);

  std::vector<char>::iterator it = data.begin();
  int i;
  variable_length_encoding::read(i, it);
  BOOST_CHECK_EQUAL(i, std::numeric_limits<int>::min());
  BOOST_CHECK(it == data.end());
}

BOOST_AUTO_TEST_CASE( test_limits_max )
{
  std::vector<char> data;

  std::back_insert_iterator< std::vector<char> > data_out(data);

  variable_length_encoding::write(std::numeric_limits<int>::max(), data_out);

  std::vector<char>::iterator it = data.begin();
  int i;
  variable_length_encoding::read(i, it);
  BOOST_CHECK_EQUAL(i, std::numeric_limits<int>::max());
  BOOST_CHECK(it == data.end());
}

BOOST_AUTO_TEST_SUITE_END()