From bb28d902e8ce770e7971505c28fa31f441969776 Mon Sep 17 00:00:00 2001
From: kazu <kazu@b2dd03c8-39d4-4d8f-98ff-823fe69b080e>
Date: Mon, 2 Jan 2012 05:56:55 +0000
Subject: * lib/test/unit.rb (Test::Unit::Runner#_run_parallel): find may  
 return nil and nil can not dup.

git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@34168 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
---
 lib/test/unit.rb | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

(limited to 'lib/test')

diff --git a/lib/test/unit.rb b/lib/test/unit.rb
index 00313a3237..1bee643c31 100644
--- a/lib/test/unit.rb
+++ b/lib/test/unit.rb
@@ -433,8 +433,9 @@ module Test
             while stat = Process.wait2
               break if @interrupt # Break when interrupt
               pid, stat = stat
-              w = (@workers + @dead_workers).find{|x| pid == x.pid }.dup
+              w = (@workers + @dead_workers).find{|x| pid == x.pid }
               next unless w
+              w = w.dup
               if w.status != :quit && !w.quit_called?
                 # Worker down
                 w.died(nil, !stat.signaled? && stat.exitstatus)
-- 
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