From ec1ab1d46542a5332b887b750f694836fd5e44b9 Mon Sep 17 00:00:00 2001
From: Hiroshi SHIBATA <hsbt@ruby-lang.org>
Date: Thu, 30 Jul 2020 21:01:22 +0900
Subject: Add explicitly require for Dir.mktmpdir

---
 test/io/wait/test_io_wait_uncommon.rb | 1 +
 1 file changed, 1 insertion(+)

(limited to 'test/io')

diff --git a/test/io/wait/test_io_wait_uncommon.rb b/test/io/wait/test_io_wait_uncommon.rb
index e7f222c578..28b4a0f8c4 100644
--- a/test/io/wait/test_io_wait_uncommon.rb
+++ b/test/io/wait/test_io_wait_uncommon.rb
@@ -19,6 +19,7 @@ class TestIOWaitUncommon < Test::Unit::TestCase
 
   def test_fifo_wait
     skip 'no mkfifo' unless File.respond_to?(:mkfifo) && IO.const_defined?(:NONBLOCK)
+    require 'tmpdir'
     Dir.mktmpdir('rubytest-fifo') do |dir|
       fifo = "#{dir}/fifo"
       assert_equal 0, File.mkfifo(fifo)
-- 
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