https://git.ruby-lang.org/ruby.git/commit/?id=17ef7a98ef

From 17ef7a98ef0fd7d65cbcb00e0fff8c5767cd85c9 Mon Sep 17 00:00:00 2001
From: aycabta <aycabta@g...>
Date: Tue, 3 Aug 2021 01:19:29 +0900
Subject: Check the existence of the test classes

---
 test/readline/test_readline.rb | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/test/readline/test_readline.rb b/test/readline/test_readline.rb
index 297bc30..be8246b 100644
--- a/test/readline/test_readline.rb
+++ b/test/readline/test_readline.rb
@@ -481,9 +481,9 @@ module BasetestReadline https://github.com/ruby/ruby/blob/trunk/test/readline/test_readline.rb#L481
       require 'readline'
       require 'test/readline/helper'
       #{
-        if self.class == TestReadline
+        if defined?(TestReadline) && self.class == TestReadline
           "use_ext_readline"
-        elsif self.class == TestRelineAsReadline
+        elsif defined?(TestRelineAsReadline) && self.class == TestRelineAsReadline
           "use_lib_reline"
         end
       }
-- 
cgit v1.1


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