https://git.ruby-lang.org/ruby.git/commit/?id=9f62768e51

From 9f62768e51a1afb479b0100e9c44645d6c1ece38 Mon Sep 17 00:00:00 2001
From: Sutou Kouhei <kou@c...>
Date: Thu, 15 Sep 2022 07:07:59 +0900
Subject: [ruby/fiddle] test: ensure freeing closure

GitHub: GH-102

https://github.com/ruby/fiddle/commit/b2fef1770d
---
 test/fiddle/test_closure.rb | 9 ++++++---
 1 file changed, 6 insertions(+), 3 deletions(-)

diff --git a/test/fiddle/test_closure.rb b/test/fiddle/test_closure.rb
index 13dfa5b76e..900bf49bd7 100644
--- a/test/fiddle/test_closure.rb
+++ b/test/fiddle/test_closure.rb
@@ -102,11 +102,14 @@ module Fiddle https://github.com/ruby/ruby/blob/trunk/test/fiddle/test_closure.rb#L102
       end
     end
 
-    def test_memsize
+    def test_memsize_ruby_dev_42480
       require 'objspace'
-      bug = '[ruby-dev:42480]'
       n = 10000
-      assert_equal(n, n.times {ObjectSpace.memsize_of(Closure.allocate)}, bug)
+      n.times do
+        Closure.create(:int, [:void]) do |closure|
+          ObjectSpace.memsize_of(closure)
+        end
+      end
     end
 
     %w[INT SHORT CHAR LONG LONG_LONG].each do |name|
-- 
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