From adad97a0310ebcd749e906be48bdabe9740deddf Mon Sep 17 00:00:00 2001
From: Nobuyoshi Nakada <nobu@ruby-lang.org>
Date: Mon, 23 Dec 2024 18:16:28 +0900
Subject: [Bug #20978] Stringize Fiber storage keys

---
 test/ruby/test_fiber.rb | 12 ++++++++++++
 1 file changed, 12 insertions(+)

(limited to 'test/ruby')

diff --git a/test/ruby/test_fiber.rb b/test/ruby/test_fiber.rb
index 45e5d12092..19cd52f7c8 100644
--- a/test/ruby/test_fiber.rb
+++ b/test/ruby/test_fiber.rb
@@ -252,6 +252,18 @@ class TestFiber < Test::Unit::TestCase
     assert_equal(nil, Thread.current[:v]);
   end
 
+  def test_fiber_variables
+    assert_equal "bar", Fiber.new {Fiber[:foo] = "bar"; Fiber[:foo]}.resume
+
+    key = :"#{self.class.name}#.#{self.object_id}"
+    Fiber[key] = 42
+    assert_equal 42, Fiber[key]
+
+    key = Object.new
+    def key.to_str; "foo"; end
+    assert_equal "Bar", Fiber.new {Fiber[key] = "Bar"; Fiber[key]}.resume
+  end
+
   def test_alive
     fib = Fiber.new{Fiber.yield}
     assert_equal(true, fib.alive?)
-- 
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