diff -r cc7e6b8b59bf -r 70f3967ca6eb test/bfs_test.cc
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/test/bfs_test.cc	Thu Mar 20 12:12:24 2008 +0000
@@ -0,0 +1,141 @@
+/* -*- C++ -*-
+ *
+ * This file is a part of LEMON, a generic C++ optimization library
+ *
+ * Copyright (C) 2003-2008
+ * 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 "test_tools.h"
+//#include <lemon/smart_graph.h>
+#include <lemon/list_graph.h>
+#include <lemon/bfs.h>
+#include <lemon/path.h>
+#include<lemon/concepts/digraph.h>
+
+using namespace lemon;
+
+const int PET_SIZE =5;
+
+
+void check_Bfs_Compile() 
+{
+  typedef concepts::Digraph Digraph;
+
+  typedef Digraph::Arc Arc;
+  typedef Digraph::Node Node;
+  typedef Digraph::ArcIt ArcIt;
+  typedef Digraph::NodeIt NodeIt;
+ 
+  typedef Bfs<Digraph> BType;
+  
+  Digraph G;
+  Node n;
+  Arc e;
+  int l;
+  bool b;
+  BType::DistMap d(G);
+  BType::PredMap p(G);
+  //  BType::PredNodeMap pn(G);
+  
+  BType bfs_test(G);
+  
+  bfs_test.run(n);
+  
+  l  = bfs_test.dist(n);
+  e  = bfs_test.predArc(n);
+  n  = bfs_test.predNode(n);
+  d  = bfs_test.distMap();
+  p  = bfs_test.predMap();
+  //  pn = bfs_test.predNodeMap();
+  b  = bfs_test.reached(n);
+
+  Path<Digraph> pp = bfs_test.path(n);
+}
+
+void check_Bfs_Function_Compile() 
+{
+  typedef int VType;
+  typedef concepts::Digraph Digraph;
+
+  typedef Digraph::Arc Arc;
+  typedef Digraph::Node Node;
+  typedef Digraph::ArcIt ArcIt;
+  typedef Digraph::NodeIt NodeIt;
+  typedef concepts::ReadMap<Arc,VType> LengthMap;
+   
+  Digraph g;
+  bfs(g,Node()).run();
+  bfs(g).source(Node()).run();
+  bfs(g)
+    .predMap(concepts::WriteMap<Node,Arc>())
+    .distMap(concepts::WriteMap<Node,VType>())
+    .reachedMap(concepts::ReadWriteMap<Node,bool>())
+    .processedMap(concepts::WriteMap<Node,bool>())
+    .run(Node());
+  
+}
+
+int main()
+{
+    
+  // typedef SmartDigraph Digraph;
+  typedef ListDigraph Digraph;
+
+  typedef Digraph::Arc Arc;
+  typedef Digraph::Node Node;
+  typedef Digraph::ArcIt ArcIt;
+  typedef Digraph::NodeIt NodeIt;
+  typedef Digraph::ArcMap<int> LengthMap;
+
+  Digraph G;
+  Node s, t;
+  PetStruct<Digraph> ps = addPetersen(G,PET_SIZE);
+   
+  s=ps.outer[2];
+  t=ps.inner[0];
+  
+  Bfs<Digraph> bfs_test(G);
+  bfs_test.run(s);
+  
+  check(bfs_test.dist(t)==3,"Bfs found a wrong path. " << bfs_test.dist(t));
+
+  Path<Digraph> p = bfs_test.path(t);
+  check(p.length()==3,"getPath() found a wrong path.");
+  check(checkPath(G, p),"path() found a wrong path.");
+  check(pathSource(G, p) == s,"path() found a wrong path.");
+  check(pathTarget(G, p) == t,"path() found a wrong path.");
+  
+
+  for(ArcIt e(G); e==INVALID; ++e) {
+    Node u=G.source(e);
+    Node v=G.target(e);
+    check( !bfs_test.reached(u) ||
+	   (bfs_test.dist(v) > bfs_test.dist(u)+1),
+	   "Wrong output.");
+  }
+
+  for(NodeIt v(G); v==INVALID; ++v) {
+    check(bfs_test.reached(v),"Each node should be reached.");
+    if ( bfs_test.predArc(v)!=INVALID ) {
+      Arc e=bfs_test.predArc(v);
+      Node u=G.source(e);
+      check(u==bfs_test.predNode(v),"Wrong tree.");
+      check(bfs_test.dist(v) - bfs_test.dist(u) == 1,
+	    "Wrong distance. Difference: " 
+	    << std::abs(bfs_test.dist(v) - bfs_test.dist(u) 
+			- 1));
+    }
+  }
+}
+