diff -r b06bfaaca48c -r 5e59c44b6ba2 src/test/kruskal_test.cc
--- a/src/test/kruskal_test.cc	Sun Sep 19 13:39:25 2004 +0000
+++ b/src/test/kruskal_test.cc	Sun Sep 19 15:24:56 2004 +0000
@@ -81,6 +81,15 @@
 	==-31,
 	"Total cost should be -31.");
 
+  tree_edge_vec.clear();
+
+  //The above test could also be coded like this:
+  check(kruskal(G,
+		makeKruskalMapInput(G, edge_cost_map),
+		makeKruskalSequenceOutput(back_inserter(tree_edge_vec)))
+	==-31,
+	"Total cost should be -31.");
+
   check(tree_edge_vec.size()==5,"The tree should have 5 edges.");
 
   check(tree_edge_vec[0]==e1 &&