From 59a40feec27790cbe07955eb00f1bc125c8d95e8 Mon Sep 17 00:00:00 2001
From: "S.H" <gamelinks007@gmail.com>
Date: Fri, 7 Feb 2020 19:36:11 +0900
Subject: [PATCH] remove warning & support multi-run test for
 test/psych_test_yaml.rb (#2887)

---
 test/psych/test_yaml.rb | 1 +
 1 file changed, 1 insertion(+)

diff --git a/test/psych/test_yaml.rb b/test/psych/test_yaml.rb
index 5fa759c981..88787d35cc 100644
--- a/test/psych/test_yaml.rb
+++ b/test/psych/test_yaml.rb
@@ -1034,6 +1034,7 @@ EOY
     end
 
 	def test_ruby_struct
+		Struct.send(:remove_const, :MyBookStruct) if Struct.const_defined?(:MyBookStruct)
 		# Ruby structures
 		book_struct = Struct::new( "MyBookStruct", :author, :title, :year, :isbn )
 		assert_to_yaml(