diff -r d8475431bbbb -r 8e85e6bbefdf test/unionfind_test.cc
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/test/unionfind_test.cc	Mon May 23 04:48:14 2005 +0000
@@ -0,0 +1,208 @@
+/* -*- C++ -*-
+ * test/unionfind_test.cc - Part of LEMON, a generic C++ optimization library
+ *
+ * Copyright (C) 2005 Egervary Jeno Kombinatorikus Optimalizalasi Kutatocsoport
+ * (Egervary Research Group on Combinatorial Optimization, EGRES).
+ *
+ * Permission to use, modify and distribute this software is granted
+ * provided that this copyright notice appears in all copies. For
+ * precise terms see the accompanying LICENSE file.
+ *
+ * This software is provided "AS IS" with no warranty of any kind,
+ * express or implied, and with no claim as to its suitability for any
+ * purpose.
+ *
+ */
+
+#include <iostream>
+
+#include <lemon/maps.h>
+#include <lemon/unionfind.h>
+#include "test_tools.h"
+
+using namespace lemon;
+using namespace std;
+
+template <typename T>
+class BaseMap : public StdMap<int,T> {};
+
+typedef UnionFindEnum<int, BaseMap> UFE;
+
+void print(UFE const &ufe) {
+  UFE::ClassIt cit;
+  cout << "Print the classes of the structure:" << endl;
+  int i = 1;
+  for (ufe.first(cit); ufe.valid(cit); ufe.next(cit)) {
+    cout << "  " << i << " (" << cit << "):" << flush;
+    UFE::ItemIt iit;
+    for (ufe.first(iit, cit); ufe.valid(iit); ufe.next(iit)) {
+      cout << " " << iit << flush;
+    }
+    cout << endl;
+    i++;
+  }
+  cout << "done" << endl;
+}
+
+
+int main() {
+  UFE::MapType base;
+  UFE U(base);
+
+//   print(U);
+
+  cout << "Insert 1..." << endl;
+  U.insert(1);
+//   print(U);
+  
+  cout << "Insert 2..." << endl;
+  U.insert(2);
+//   print(U);
+  
+  cout << "Join 1 and 2..." << endl;
+  check(U.join(1,2),"Test failed.");
+//   print(U);
+
+  cout << "Insert 3, 4, 5, 6, 7..." << endl;
+  U.insert(3);
+  U.insert(4);
+  U.insert(5);
+  U.insert(6);
+  U.insert(7);
+//   print (U);
+
+  cout << "Join 1 - 4, 2 - 4 and 3 - 5 ..." << endl;
+  check(U.join(1,4),"Test failed.");
+  check(!U.join(2,4),"Test failed.");
+  check(U.join(3,5),"Test failed.");
+//   print(U);
+
+  cout << "Insert 8 to the component of 5 ..." << endl;
+  U.insert(8,5);
+//   print(U);
+
+  cout << "Size of the class of 4: " << U.size(4) << endl;
+  check(U.size(4) == 3,"Test failed.");
+  cout << "Size of the class of 5: " << U.size(5) << endl;
+  check(U.size(5) == 3,"Test failed.");
+  cout << "Size of the class of 6: " << U.size(6) << endl;
+  check(U.size(6) == 1,"Test failed.");
+  cout << "Size of the class of 2: " << U.size(2) << endl;
+  check(U.size(2) == 3,"Test failed.");
+
+  cout << "Insert 9 ..." << endl;
+  U.insert(9);
+//   print(U);
+  cout << "Insert 10 to the component of 9 ..." << endl;
+  U.insert(10,9);
+//   print(U);
+
+  cout << "Join 8 and 10..." << endl;
+  check(U.join(8,10),"Test failed.");
+//   print(U);
+
+  cout << "Move 9 to the class of 4 ..." << endl;
+  check(U.move(9,4),"Test failed.");
+//   print(U);
+
+  cout << "Move 9 to the class of 2 ..." << endl;
+  check(!U.move(9,2),"Test failed.");
+//   print(U);
+
+  cout << "Size of the class of 4: " << U.size(4) << endl;
+  check(U.size(4) == 4,"Test failed.");
+  cout << "Size of the class of 9: " << U.size(9) << endl;
+  check(U.size(9) == 4,"Test failed.");
+  
+  cout << "Move 5 to the class of 6 ..." << endl;
+  check(U.move(5,6),"Test failed.");
+//   print(U);
+
+  cout << "Size of the class of 5: " << U.size(5) << endl;
+  check(U.size(5) == 2,"Test failed.");
+  cout << "Size of the class of 8: " << U.size(8) << endl;
+  check(U.size(8) == 3,"Test failed.");
+
+  cout << "Move 7 to the class of 10 ..." << endl;
+  check(U.move(7,10),"Test failed.");
+//   print(U);
+
+  cout << "Size of the class of 7: " << U.size(7) << endl;
+  check(U.size(7) == 4,"Test failed.");
+
+  cout <<"Erase 9... " << endl;
+  U.erase(9);
+//   print(U);
+
+  cout <<"Erase 1... " << endl;
+  U.erase(1);
+//   print(U);
+
+  cout << "Size of the class of 4: " << U.size(4) << endl;
+  check(U.size(4) == 2,"Test failed.");
+  cout << "Size of the class of 2: " << U.size(2) << endl;
+  check(U.size(2) == 2,"Test failed.");
+
+
+  cout <<"Erase 1... " << endl;
+  U.erase(1);
+//   print(U);
+
+  cout <<"Erase 6... " << endl;
+  U.erase(6);
+//   print(U);
+
+  cout << "Split the class of 8... " << endl;
+  U.split(8);
+//   print(U);
+
+
+  cout << "Size of the class of 4: " << U.size(4) << endl;
+  check(U.size(4) == 2,"Test failed.");
+  cout << "Size of the class of 3: " << U.size(3) << endl;
+  check(U.size(3) == 1,"Test failed.");
+  cout << "Size of the class of 2: " << U.size(2) << endl;
+  check(U.size(2) == 2,"Test failed.");
+
+
+  cout << "Join 3 - 4 and 2 - 4 ..." << endl;
+  check(U.join(3,4),"Test failed.");
+  check(!U.join(2,4),"Test failed.");
+//   print(U);
+
+
+  cout << "Size of the class of 4: " << U.size(4) << endl;
+  check(U.size(4) == 3,"Test failed.");
+  cout << "Size of the class of 3: " << U.size(3) << endl;
+  check(U.size(3) == 3,"Test failed.");
+  cout << "Size of the class of 2: " << U.size(2) << endl;
+  check(U.size(2) == 3,"Test failed.");
+
+  cout << "Calling makeRep(4)..." << endl;
+  U.makeRep(4);
+//   print(U);
+  cout << "Calling makeRep(3)..." << endl;
+  U.makeRep(3);
+//   print(U);
+  cout << "Calling makeRep(2)..." << endl;
+  U.makeRep(2);
+//   print(U);
+
+  cout << "Size of the class of 4: " << U.size(4) << endl;
+  check(U.size(4) == 3,"Test failed.");
+  cout << "Size of the class of 3: " << U.size(3) << endl;
+  check(U.size(3) == 3,"Test failed.");
+  cout << "Size of the class of 2: " << U.size(2) << endl;
+  check(U.size(2) == 3,"Test failed.");
+
+
+  cout << "eraseClass 4 ..." << endl;
+  U.eraseClass(4);
+//   print(U);
+
+  cout << "eraseClass 7 ..." << endl;
+  U.eraseClass(7);
+//   print(U);
+
+  cout << "done." << endl;
+}