+# Now we find a collection of all the tickets which are not members of the parent ticket
+$Collection = RT::Tickets->new($CurrentUser);
+$Collection->FromSQL("MemberOf != $parentid");
+%has = ();
+while (my $t = $Collection->Next) {
+ ++$has{$t->id};
+}
+ok( $has{$parentid}, "The collection has our parent - $parentid");
+ok( !$has{$childid}, "The collection doesn't have our child - $childid");