alpar@906: /* -*- C++ -*-
ladanyi@1435:  * test/unionfind_test.cc - Part of LEMON, a generic C++ optimization library
alpar@906:  *
alpar@1164:  * Copyright (C) 2005 Egervary Jeno Kombinatorikus Optimalizalasi Kutatocsoport
alpar@1359:  * (Egervary Research Group on Combinatorial Optimization, EGRES).
alpar@906:  *
alpar@906:  * Permission to use, modify and distribute this software is granted
alpar@906:  * provided that this copyright notice appears in all copies. For
alpar@906:  * precise terms see the accompanying LICENSE file.
alpar@906:  *
alpar@906:  * This software is provided "AS IS" with no warranty of any kind,
alpar@906:  * express or implied, and with no claim as to its suitability for any
alpar@906:  * purpose.
alpar@906:  *
alpar@906:  */
alpar@906: 
beckerjc@483: #include <iostream>
beckerjc@483: 
alpar@921: #include <lemon/maps.h>
alpar@921: #include <lemon/unionfind.h>
alpar@774: #include "test_tools.h"
beckerjc@483: 
alpar@921: using namespace lemon;
beckerjc@483: using namespace std;
beckerjc@483: 
beckerjc@483: template <typename T>
beckerjc@483: class BaseMap : public StdMap<int,T> {};
beckerjc@483: 
beckerjc@483: typedef UnionFindEnum<int, BaseMap> UFE;
beckerjc@483: 
beckerjc@483: void print(UFE const &ufe) {
beckerjc@483:   UFE::ClassIt cit;
alpar@774:   cout << "Print the classes of the structure:" << endl;
beckerjc@483:   int i = 1;
beckerjc@483:   for (ufe.first(cit); ufe.valid(cit); ufe.next(cit)) {
beckerjc@483:     cout << "  " << i << " (" << cit << "):" << flush;
beckerjc@483:     UFE::ItemIt iit;
beckerjc@483:     for (ufe.first(iit, cit); ufe.valid(iit); ufe.next(iit)) {
beckerjc@483:       cout << " " << iit << flush;
beckerjc@483:     }
beckerjc@483:     cout << endl;
beckerjc@483:     i++;
beckerjc@483:   }
beckerjc@483:   cout << "done" << endl;
beckerjc@483: }
beckerjc@483: 
beckerjc@483: 
beckerjc@483: int main() {
beckerjc@483:   UFE::MapType base;
beckerjc@483:   UFE U(base);
beckerjc@483: 
alpar@1569:   U.insert(1);
alpar@1569:   U.insert(2);
beckerjc@483: 
alpar@774:   check(U.join(1,2),"Test failed.");
beckerjc@483: 
beckerjc@483:   U.insert(3);
beckerjc@483:   U.insert(4);
beckerjc@483:   U.insert(5);
beckerjc@483:   U.insert(6);
beckerjc@483:   U.insert(7);
beckerjc@483: 
alpar@774:   check(U.join(1,4),"Test failed.");
alpar@774:   check(!U.join(2,4),"Test failed.");
alpar@774:   check(U.join(3,5),"Test failed.");
beckerjc@483: 
beckerjc@483:   U.insert(8,5);
beckerjc@483: 
alpar@774:   check(U.size(4) == 3,"Test failed.");
alpar@774:   check(U.size(5) == 3,"Test failed.");
alpar@774:   check(U.size(6) == 1,"Test failed.");
alpar@774:   check(U.size(2) == 3,"Test failed.");
beckerjc@483: 
beckerjc@483:   U.insert(9);
beckerjc@483:   U.insert(10,9);
alpar@1569:   check(U.join(8,10),"Test failed.");
beckerjc@483: 
alpar@1569:   check(U.move(9,4),"Test failed.");
alpar@1569:   check(!U.move(9,2),"Test failed.");
beckerjc@483: 
alpar@1569:   check(U.size(4) == 4,"Test failed.");
alpar@1569:   check(U.size(9) == 4,"Test failed.");
beckerjc@483: 
alpar@1569:   check(U.move(5,6),"Test failed.");
beckerjc@483: 
alpar@774:   check(U.size(5) == 2,"Test failed.");
alpar@774:   check(U.size(8) == 3,"Test failed.");
beckerjc@483: 
alpar@774:   check(U.move(7,10),"Test failed.");
alpar@774:   check(U.size(7) == 4,"Test failed.");
beckerjc@483: 
beckerjc@483:   U.erase(9);
alpar@1569:   U.erase(1);
beckerjc@483: 
alpar@774:   check(U.size(4) == 2,"Test failed.");
alpar@774:   check(U.size(2) == 2,"Test failed.");
beckerjc@483: 
alpar@1569:   U.erase(1);
alpar@1569:   U.erase(6);
alpar@1569:   U.split(8);
beckerjc@483: 
alpar@774:   check(U.size(4) == 2,"Test failed.");
alpar@774:   check(U.size(3) == 1,"Test failed.");
alpar@774:   check(U.size(2) == 2,"Test failed.");
beckerjc@483: 
alpar@774:   check(U.join(3,4),"Test failed.");
alpar@774:   check(!U.join(2,4),"Test failed.");
beckerjc@483: 
alpar@774:   check(U.size(4) == 3,"Test failed.");
alpar@774:   check(U.size(3) == 3,"Test failed.");
alpar@774:   check(U.size(2) == 3,"Test failed.");
beckerjc@483: 
beckerjc@483:   U.makeRep(4);
beckerjc@483:   U.makeRep(3);
beckerjc@483:   U.makeRep(2);
beckerjc@483: 
alpar@774:   check(U.size(4) == 3,"Test failed.");
alpar@774:   check(U.size(3) == 3,"Test failed.");
alpar@774:   check(U.size(2) == 3,"Test failed.");
beckerjc@483: 
beckerjc@483: 
beckerjc@483:   U.eraseClass(4);
alpar@1569:   U.eraseClass(7);
beckerjc@483: 
beckerjc@483: }