testPointHashFunctions.cpp File Reference

#include <iostream>
#include "DGtal/base/Common.h"
#include "ConfigTest.h"
#include "DGtal/helpers/StdDefs.h"
#include "DGtalCatch.h"
#include "DGtal/kernel/PointVector.h"
#include "DGtal/kernel/PointHashFunctions.h"

Go to the source code of this file.

Functions
	TEST_CASE ("Hash functions on DGtal::Point")

Detailed Description

This program 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.

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, see http://www.gnu.org/licenses/.

Author

David Coeurjolly (david.nosp@m..coe.nosp@m.urjol.nosp@m.ly@l.nosp@m.iris..nosp@m.cnrs.nosp@m..fr ) Laboratoire d'InfoRmatique en Image et Systemes d'information - LIRIS (CNRS, UMR 5205), CNRS, France

Date

2015/06/14

Functions for testing class PointHashFunctions.

This file is part of the DGtal library.

Definition in file testPointHashFunctions.cpp.

Function Documentation

TEST_CASE()

TEST_CASE

(

"Hash functions on DGtal::Point"

)

Definition at line 48 of file testPointHashFunctions.cpp.

{
  Z3i::Point p(0,0,0);
  Z3i::Point q(10,0,0);
  Z3i::Point p_copy(0,0,0);
  std::hash<Z3i::Point> myhashcpp11;
  
  SECTION("Identity test")
    {
      REQUIRE( myhashcpp11(p) == myhashcpp11(p_copy) );
    }
 
  
  SECTION("Difference test")
    {
      REQUIRE( myhashcpp11(p) != myhashcpp11(q) );
    }
    
  SECTION("Higher dimension identity test")
    {
      typedef PointVector<26,int> Point26;
      Point26 pp=Point26::diagonal(12),
        qq=(Point26::diagonal(11) + Point26::diagonal(1)),
        rr=Point26::diagonal(13);
 
      std::hash<Point26> myhash26cpp11;
      
      REQUIRE( myhash26cpp11(pp) == myhash26cpp11(qq) );
      REQUIRE( myhash26cpp11(pp) != myhash26cpp11(rr) );
    }
}

References REQUIRE(), and SECTION().