diff -r 0f6f4eb7abe9 -r 7b0b12eb603b src/test/test_tools.h
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/src/test/test_tools.h	Fri May 07 10:22:30 2004 +0000
@@ -0,0 +1,64 @@
+#ifndef HUGO_TEST_TEST_TOOLS_H
+#define HUGO_TEST_TEST_TOOLS_H
+
+//! \ingroup misc
+//! \file
+//! \brief Some utility to write test programs.
+
+
+#include<iostream>
+#include<vector>
+
+//If \c rc is fail, writes an error message end exit.
+
+///If \c rc is fail, writes an error message end exit.
+///The error message contains the file name and the line number of the
+///source code is a standard from, which makes it possible to go there
+///using good source browsers like e.g. \c emacs.
+///
+///For example
+///\code check(0==1,"This is obviously false.");\endcode will
+///print this (and then exits).
+///\verbatim graph_test.cc:123: error: This is obviously false. \endverbatim
+#define check(rc, msg) \
+  if(!(rc)) { \
+    std::cerr << __FILE__ ":" << __LINE__ << ": error: " << msg << std::endl; \
+    exit(1); \
+  } else { } \
+
+///Structure returned by \ref addPetersen().
+
+///Structure returned by \ref addPetersen().
+///
+template<class Graph> struct PetStruct
+{
+  ///.
+  std::vector<typename Graph::Node> outer, inner;
+  ///.
+  std::vector<typename Graph::Edge> outcir, incir, chords;
+};
+
+///Adds a Petersen graph to \c G.
+
+///Adds a Petersen graph to \c G.
+///The nodes end edges will be listed in the return structure.
+template<class Graph> PetStruct<Graph> addPetersen(Graph &G,int num=5)
+{
+  PetStruct<Graph> n;
+
+  for(int i=0;i<num;i++) {
+    n.outer.push_back(G.addNode());
+    n.inner.push_back(G.addNode());
+  }
+
+ for(int i=0;i<num;i++) {
+   n.chords.push_back(G.addEdge(n.outer[i],n.inner[i]));
+   n.outcir.push_back(G.addEdge(n.outer[i],n.outer[(i+1)%5]));
+   n.incir.push_back(G.addEdge(n.inner[i],n.inner[(i+2)%5]));
+  }
+ return n;
+}
+
+
+
+#endif