/* Test Congruence_System ascii_dump() and ascii_load().
   Copyright (C) 2001-2010 Roberto Bagnara <bagnara@cs.unipr.it>
   Copyright (C) 2010-2011 BUGSENG srl (http://bugseng.com)

This file is part of the Parma Polyhedra Library (PPL).

The PPL 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.

The PPL 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 this program; if not, write to the Free Software Foundation,
Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02111-1307, USA.

For the most up-to-date information see the Parma Polyhedra Library
site: http://www.cs.unipr.it/ppl/ . */

#include "ppl_test.hh"

#include "files.hh"
#include <string>
#include <fstream>

using std::string;
using std::fstream;
using std::ios_base;

namespace {

// Load the result of a dump.
bool
test01() {
  const char* my_file = "ascii_dump_load4.dat";
  Variable A(0);
  Variable B(1);

  Congruence_System cgs1((A + B %= 2) / 3);
  cgs1.insert(A == 0);

  fstream f;
  open(f, my_file, ios_base::out);
  cgs1.ascii_dump(f);
  close(f);

  open(f, my_file, ios_base::in);
  Congruence_System cgs2;
  cgs2.ascii_load(f);
  close(f);

  bool ok = (cgs1 == cgs2);

  print_congruences(cgs1, "*** cgs1 ***");
  print_congruences(cgs2, "*** cgs2 ***");

  return ok;
}

bool
test02() {
  const char* my_file = "ascii_dump_load4.dat";
  Variable A(0);

  fstream f;
  open(f, my_file, ios_base::out);
  f << "err x 3\n";
  close(f);

  open(f, my_file, ios_base::in);
  Congruence_System cgs(0*A %= 0);
  bool ok = !cgs.ascii_load(f);
  close(f);

  return ok;
}

bool
test03() {
  const char* my_file = "ascii_dump_load4.dat";
  Variable A(0);

  fstream f;
  open(f, my_file, ios_base::out);
  f << "2\n";
  close(f);

  open(f, my_file, ios_base::in);
  Congruence_System cgs(0*A %= 0);
  bool ok = !cgs.ascii_load(f);
  close(f);

  return ok;
}

bool
test04() {
  const char* my_file = "ascii_dump_load4.dat";
  Variable A(0);

  fstream f;
  open(f, my_file, ios_base::out);
  f << "2 x err\n";
  close(f);

  open(f, my_file, ios_base::in);
  Congruence_System cgs(0*A %= 0);
  bool ok = !cgs.ascii_load(f);
  close(f);

  return ok;
}

bool
test05() {
  const char* my_file = "ascii_dump_load4.dat";
  Variable A(0);

  fstream f;
  open(f, my_file, ios_base::out);
  f << "2 x 3\n"
    << "size 3 0 1 err 1\n";
  close(f);

  open(f, my_file, ios_base::in);
  Congruence_System cgs(0*A %= 0);
  bool ok = !cgs.ascii_load(f);
  close(f);

  return ok;
}

} // namespace

BEGIN_MAIN
  DO_TEST(test01);
  DO_TEST(test02);
  DO_TEST(test03);
  DO_TEST(test04);
  DO_TEST(test05);
END_MAIN
