diff -r b8f10207e3d6 -r 84ec2948eb1f test/unionfind_test.cc
--- a/test/unionfind_test.cc	Fri Mar 10 18:17:37 2006 +0000
+++ b/test/unionfind_test.cc	Fri Mar 10 19:34:47 2006 +0000
@@ -97,7 +97,6 @@
   check(U.size(4) == 2,"Test failed.");
   check(U.size(2) == 2,"Test failed.");
 
-  U.erase(1);
   U.erase(6);
   U.split(8);