iterators.cpp

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/******************************************************************************
** Copyright © 2002 by J.M.McGuiness, coder@hussar.me.uk
**
** This 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 2.1 of the License, or (at your option) any later version.
**
** This 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 a copy of the GNU Lesser General Public
** License along with this library; if not, write to the Free Software
** Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
*/
 
#include "stdafx.h"
 
#define BOOST_TEST_MODULE libjmmcg_tests
#include <boost/test/included/unit_test.hpp>
 
#include "core/line_iterator.hpp"
#include "core/csv_iterator.hpp"
 
#include <algorithm>
#include <sstream>
#include <vector>
 
using namespace libjmmcg;
 
constexpr char data[]="k, l, m, 10, 11, 12\nd, e, f, 4, 5, 6\nh, i, j, 7, 8, 9\na, b, c, 1, 2, 3\n";
 
BOOST_AUTO_TEST_SUITE(iterator_tests)
 
BOOST_AUTO_TEST_CASE(ctor_eof) {
   BOOST_CHECK_NO_THROW(line_iterator eof);
}
 
BOOST_AUTO_TEST_CASE(ctor_eol) {
   BOOST_CHECK_NO_THROW(line_iterator eof);
}
 
BOOST_AUTO_TEST_CASE(basic) {
   std::stringstream ss;
   ss<<data;
   line_iterator it(ss), eof;
   std::vector<std::string> data(it, eof);
 
   // Sort it to ensure that we are not just pretending.
   std::sort(data.begin(), data.end());
 
   for (auto const &line : data) {
      BOOST_CHECK(!line.empty());
      const csv_iterator eol;
      for (csv_iterator csv_it(line); csv_it!=eol; ++csv_it) {
         BOOST_CHECK(!csv_it->empty());
      }
   }
}
 
BOOST_AUTO_TEST_CASE(stream) {
   std::stringstream ss;
   ss<<data;
   line_iterator it(ss), eof;
   while (it!=eof) {
      std::string const line=*it++;
      BOOST_CHECK(!line.empty());
      const csv_iterator eol;
      for (csv_iterator csv_it(line); csv_it!=eol; ++csv_it) {
         BOOST_CHECK(!csv_it->empty());
      }
   }
}
 
BOOST_AUTO_TEST_CASE(select_2nd_element) {
   std::stringstream ss;
   ss<<data;
   line_iterator it(ss), eof;
   std::string const line=*it;
   BOOST_CHECK(!line.empty());
   const csv_iterator eol;
   csv_iterator csv_it(line);
   auto val_iter=std::next(csv_it);
   BOOST_CHECK_EQUAL(*val_iter, " l");
}
 
BOOST_AUTO_TEST_SUITE_END()