test/unionfind_test.cc
author deba
Tue, 31 Oct 2006 14:27:58 +0000
changeset 2282 9d7b12f83daa
parent 2005 84ec2948eb1f
child 2308 cddae1c4fee6
permissions -rw-r--r--
Bug fixes
     1 /* -*- C++ -*-
     2  *
     3  * This file is a part of LEMON, a generic C++ optimization library
     4  *
     5  * Copyright (C) 2003-2006
     6  * Egervary Jeno Kombinatorikus Optimalizalasi Kutatocsoport
     7  * (Egervary Research Group on Combinatorial Optimization, EGRES).
     8  *
     9  * Permission to use, modify and distribute this software is granted
    10  * provided that this copyright notice appears in all copies. For
    11  * precise terms see the accompanying LICENSE file.
    12  *
    13  * This software is provided "AS IS" with no warranty of any kind,
    14  * express or implied, and with no claim as to its suitability for any
    15  * purpose.
    16  *
    17  */
    18 
    19 #include <iostream>
    20 
    21 #include <lemon/maps.h>
    22 #include <lemon/unionfind.h>
    23 #include "test_tools.h"
    24 
    25 using namespace lemon;
    26 using namespace std;
    27 
    28 typedef UnionFindEnum<int, StdMap<int, int> > UFE;
    29 
    30 void print(UFE const &ufe) {
    31   cout << "Print the classes of the structure:" << endl;
    32   int i = 1;
    33   for (UFE::ClassIt cit(ufe); cit != INVALID; ++cit) {
    34     cout << "  " << i << " (" << cit << "):" << flush;
    35     for (UFE::ItemIt iit(ufe, cit); iit != INVALID; ++iit) {
    36       cout << " " << iit << flush;
    37     }
    38     cout << endl;
    39     i++;
    40   }
    41   cout << "done" << endl;
    42 }
    43 
    44 
    45 int main() {
    46   StdMap<int, int> base;
    47   UFE U(base);
    48 
    49   U.insert(1);
    50   U.insert(2);
    51 
    52   check(U.join(1,2),"Test failed.");
    53 
    54   U.insert(3);
    55   U.insert(4);
    56   U.insert(5);
    57   U.insert(6);
    58   U.insert(7);
    59 
    60   check(U.join(1,4),"Test failed.");
    61   check(!U.join(2,4),"Test failed.");
    62   check(U.join(3,5),"Test failed.");
    63 
    64   U.insert(8,5);
    65 
    66   check(U.size(4) == 3,"Test failed.");
    67   check(U.size(5) == 3,"Test failed.");
    68   check(U.size(6) == 1,"Test failed.");
    69   check(U.size(2) == 3,"Test failed.");
    70 
    71   U.insert(9);
    72   U.insert(10,9);
    73 
    74   check(U.join(8,10),"Test failed.");
    75 
    76   check(U.move(9,4),"Test failed.");
    77   check(!U.move(9,2),"Test failed.");
    78 
    79   check(U.size(4) == 4,"Test failed.");
    80   check(U.size(9) == 4,"Test failed.");
    81 
    82   check(U.move(5,6),"Test failed.");
    83 
    84   check(U.size(5) == 2,"Test failed.");
    85   check(U.size(8) == 3,"Test failed.");
    86 
    87   check(U.move(7,10),"Test failed.");
    88   check(U.size(7) == 4,"Test failed.");
    89 
    90   U.erase(9);
    91   U.erase(1);
    92 
    93   check(U.size(4) == 2,"Test failed.");
    94   check(U.size(2) == 2,"Test failed.");
    95 
    96   U.erase(6);
    97   U.split(8);
    98 
    99   check(U.size(4) == 2,"Test failed.");
   100   check(U.size(3) == 1,"Test failed.");
   101   check(U.size(2) == 2,"Test failed.");
   102 
   103   check(U.join(3,4),"Test failed.");
   104   check(!U.join(2,4),"Test failed.");
   105 
   106   check(U.size(4) == 3,"Test failed.");
   107   check(U.size(3) == 3,"Test failed.");
   108   check(U.size(2) == 3,"Test failed.");
   109 
   110   U.makeRep(4);
   111   U.makeRep(3);
   112   U.makeRep(2);
   113 
   114   check(U.size(4) == 3,"Test failed.");
   115   check(U.size(3) == 3,"Test failed.");
   116   check(U.size(2) == 3,"Test failed.");
   117 
   118 
   119   U.eraseClass(4);
   120   U.eraseClass(7);
   121 
   122 }