From d7a6ff8224519005d2deeb3f4e98689a8a0835ad Mon Sep 17 00:00:00 2001
From: Nobuyoshi Nakada <nobu@ruby-lang.org>
Date: Sat, 3 Jan 2026 15:03:57 +0900
Subject: [Bug #21819] Data objects without members should also be frozen

---
 test/ruby/test_data.rb | 1 +
 1 file changed, 1 insertion(+)

(limited to 'test/ruby')

diff --git a/test/ruby/test_data.rb b/test/ruby/test_data.rb
index dd698fdcc4..5ac4c6b84b 100644
--- a/test/ruby/test_data.rb
+++ b/test/ruby/test_data.rb
@@ -262,6 +262,7 @@ class TestData < Test::Unit::TestCase
     assert_equal('#<data >', test.inspect)
     assert_equal([], test.members)
     assert_equal({}, test.to_h)
+    assert_predicate(test, :frozen?)
   end
 
   def test_dup
-- 
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