https://git.ruby-lang.org/ruby.git/commit/?id=5ddc2ba13e

From 5ddc2ba13ed6964a0383894e3728dc1bc708c404 Mon Sep 17 00:00:00 2001
From: Yusuke Endoh <mame@r...>
Date: Mon, 30 Sep 2019 20:24:26 +0900
Subject: test/ruby/test_io.rb: supress a "method redefined" warning

by explicitly removing the old definition.

diff --git a/test/ruby/test_io.rb b/test/ruby/test_io.rb
index 6a27b5d..cabcc65 100644
--- a/test/ruby/test_io.rb
+++ b/test/ruby/test_io.rb
@@ -2296,6 +2296,9 @@ class TestIO < Test::Unit::TestCase https://github.com/ruby/ruby/blob/trunk/test/ruby/test_io.rb#L2296
       assert_equal({:a=>1}, open(o, {a: 1}))
     end
 
+    class << o
+      remove_method(:to_open)
+    end
     def o.to_open(kw); kw; end
     assert_equal({:a=>1}, open(o, a: 1))
     unless redefined
-- 
cgit v0.10.2


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