diff -r 3ea28f39218b -r f694f75de683 test/graph_utils_test.h
--- a/test/graph_utils_test.h	Mon Jul 18 15:09:37 2005 +0000
+++ b/test/graph_utils_test.h	Mon Jul 18 15:10:22 2005 +0000
@@ -18,6 +18,8 @@
 
 
 #include "test_tools.h"
+#include <cstdlib>
+#include <ctime>
 
 //! \ingroup misc
 //! \file
@@ -37,6 +39,41 @@
       check(countInEdges(graph, it) == 3, "Wrong in degree number.");
     }
   }
+
+  template <typename Graph>
+  void checkFindEdge() {
+    typedef typename Graph::Node Node;
+    typedef typename Graph::Edge Edge;
+    typedef typename Graph::NodeIt NodeIt;
+    typedef typename Graph::EdgeIt EdgeIt;
+    Graph graph;
+    srand(time(0));
+    for (int i = 0; i < 10; ++i) {
+      graph.addNode();
+    }
+    DescriptorMap<Graph, Node> nodes(graph);
+    typename DescriptorMap<Graph, Node>::InverseMap invNodes(nodes);
+    for (int i = 0; i < 100; ++i) {
+      int src = (int)(rand() / (RAND_MAX + 1.0) * invNodes.size());
+      int trg = (int)(rand() / (RAND_MAX + 1.0) * invNodes.size());
+      graph.addEdge(invNodes[src], invNodes[trg]);
+    }
+    typename Graph::template EdgeMap<bool> found(graph, false);
+    DescriptorMap<Graph, Edge> edges(graph);
+    for (NodeIt src(graph); src != INVALID; ++src) {
+      for (NodeIt trg(graph); trg != INVALID; ++trg) {
+	for (ConEdgeIt<Graph> con(graph, src, trg); con != INVALID; ++con) {
+	  check(graph.source(con) == src, "Wrong source.");
+	  check(graph.target(con) == trg, "Wrong target.");
+	  check(found[con] == false, "The edge found already.");
+	  found[con] = true;
+	}
+      }
+    }
+    for (EdgeIt it(graph); it != INVALID; ++it) {
+      check(found[it] == true, "The edge is not found.");
+    }
+  }
   
 } //namespace lemon