/* -*- mode: C -*-  */
/* 
   IGraph library.
   Copyright (C) 2006-2012  Gabor Csardi <csardi.gabor@gmail.com>
   334 Harvard street, Cambridge, MA 02139 USA
   
   This program 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 2 of the License, or
   (at your option) any later version.
   
   This program 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 
   02110-1301 USA

*/

#include <igraph.h>

int main() {
  igraph_t g;
  igraph_vector_t outdeg, indeg, vec;
  igraph_bool_t is_simple;

  igraph_vector_init_real(&outdeg, 10, 3.0, 3.0, 3.0, 3.0, 3.0, 3.0, 3.0, 3.0, 3.0, 3.0);
  igraph_vector_init_real(&indeg, 10, 4.0, 4.0, 2.0, 2.0, 4.0, 4.0, 2.0, 2.0, 3.0, 3.0);
  igraph_vector_init(&vec, 0);

  /* checking the simple method, undirected graphs */
  igraph_degree_sequence_game(&g, &outdeg, 0, IGRAPH_DEGSEQ_SIMPLE);
  if (igraph_is_directed(&g) || igraph_vcount(&g) != 10)
	return 1;
  if (igraph_degree(&g, &vec, igraph_vss_all(), IGRAPH_OUT, 1))
	return 2;
  igraph_vector_print(&vec);
  igraph_destroy(&g);

  /* checking the Viger-Latapy method, undirected graphs */
  igraph_degree_sequence_game(&g, &outdeg, 0, IGRAPH_DEGSEQ_VL);
  if (igraph_is_directed(&g) || igraph_vcount(&g) != 10)
	return 3;
  if (igraph_is_simple(&g, &is_simple) || !is_simple)
	return 4;
  if (igraph_degree(&g, &vec, igraph_vss_all(), IGRAPH_OUT, 0))
	return 5;
  igraph_vector_print(&vec);
  igraph_destroy(&g);

  /* checking the simple method, directed graphs */
  igraph_degree_sequence_game(&g, &outdeg, &indeg, IGRAPH_DEGSEQ_SIMPLE);
  if (!igraph_is_directed(&g) || igraph_vcount(&g) != 10)
	return 6;
  if (igraph_degree(&g, &vec, igraph_vss_all(), IGRAPH_OUT, 1))
	return 7;
  igraph_vector_print(&vec);
  if (igraph_degree(&g, &vec, igraph_vss_all(), IGRAPH_IN, 1))
	return 8;
  igraph_vector_print(&vec);
  igraph_destroy(&g);

  /* checking the no multiple edges method, undirected graphs */
  igraph_degree_sequence_game(&g, &outdeg, 0, IGRAPH_DEGSEQ_SIMPLE_NO_MULTIPLE);
  if (igraph_is_directed(&g) || igraph_vcount(&g) != 10)
	return 9;
  if (igraph_is_simple(&g, &is_simple) || !is_simple)
	return 10;
  if (igraph_degree(&g, &vec, igraph_vss_all(), IGRAPH_OUT, 1))
	return 11;
  igraph_vector_print(&vec);
  igraph_destroy(&g);

  /* checking the no multiple edges method, directed graphs */
  igraph_degree_sequence_game(&g, &outdeg, &indeg, IGRAPH_DEGSEQ_SIMPLE_NO_MULTIPLE);
  if (!igraph_is_directed(&g) || igraph_vcount(&g) != 10)
	return 12;
  if (igraph_is_simple(&g, &is_simple) || !is_simple)
	return 13;
  if (igraph_degree(&g, &vec, igraph_vss_all(), IGRAPH_OUT, 1))
	return 14;
  igraph_vector_print(&vec);
  if (igraph_degree(&g, &vec, igraph_vss_all(), IGRAPH_IN, 1))
	return 15;
  igraph_vector_print(&vec);
  igraph_destroy(&g);

  igraph_vector_destroy(&vec);
  igraph_vector_destroy(&outdeg);
  igraph_vector_destroy(&indeg);

  return 0;
}