From 3176790c0d15dd7a72bb6e349651b3a66111d6f7 Mon Sep 17 00:00:00 2001
From: Takashi Kokubun <takashikkbn@gmail.com>
Date: Tue, 13 Jan 2026 10:57:06 -0800
Subject: Add a test backport missed at
 a10f7fac1fb1dcbdb1ae41137bd7294764a34793

https://bugs.ruby-lang.org/issues/21831
---
 test/ruby/test_literal.rb | 5 +++++
 1 file changed, 5 insertions(+)

diff --git a/test/ruby/test_literal.rb b/test/ruby/test_literal.rb
index dbff3c4734..cff888d4b3 100644
--- a/test/ruby/test_literal.rb
+++ b/test/ruby/test_literal.rb
@@ -682,6 +682,11 @@ class TestRubyLiteral < Test::Unit::TestCase
     $VERBOSE = verbose_bak
   end
 
+  def test_rational_float
+    assert_equal(12, 0.12r * 100)
+    assert_equal(12, 0.1_2r * 100)
+  end
+
   def test_symbol_list
     assert_equal([:foo, :bar], %i[foo bar])
     assert_equal([:"\"foo"], %i["foo])
-- 
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