diff -r 43fc017da4f8 -r f3d856bf1ebf src/test/dfs_test.cc
--- a/src/test/dfs_test.cc	Mon Mar 21 11:08:17 2005 +0000
+++ b/src/test/dfs_test.cc	Mon Mar 21 11:40:08 2005 +0000
@@ -109,7 +109,8 @@
       Node u=G.source(e);
       check(u==dfs_test.predNode(v),"Wrong tree.");
       check(dfs_test.dist(v) - dfs_test.dist(u) == 1,
-	    "Wrong distance." << dfs_test.dist(v) << " " <<dfs_test.dist(u) );
+	    "Wrong distance. (" << dfs_test.dist(u) << "->" 
+	    <<dfs_test.dist(v) << ')');
     }
   }
 }