diff -r 48801095a410 -r 9f329faa4aee test/graph_utils_test.cc
--- a/test/graph_utils_test.cc	Thu Oct 12 10:53:25 2006 +0000
+++ b/test/graph_utils_test.cc	Thu Oct 12 10:53:49 2006 +0000
@@ -86,6 +86,16 @@
 	check(++con == INVALID, "There is more connecting edge.");
       }
     }
+    AllEdgeLookUp<FullGraph> el(fg);
+    for (FullGraph::NodeIt src(fg); src != INVALID; ++src) {
+      for (FullGraph::NodeIt trg(fg); trg != INVALID; ++trg) {
+	FullGraph::Edge con = el(src, trg);
+	check(con != INVALID, "There is no connecting edge.");
+	check(fg.source(con) == src, "Wrong source.");
+	check(fg.target(con) == trg, "Wrong target.");
+	check(el(src,trg,con) == INVALID, "There is more connecting edge.");
+      }
+    }
   }
 
   //check In/OutDegMap (and Snapshot feature)