From 15ee45080133c19d167760d577d72540a9db0ec9 Mon Sep 17 00:00:00 2001
From: Jean Boussier <jean.boussier@gmail.com>
Date: Tue, 4 Mar 2025 13:40:13 +0100
Subject: Move in-place interning spec to Ruby's tests

Fix: https://github.com/ruby/spec/issues/1249

JRuby and TruffleRuby can't implement this behavior.
While quite a lot of code out there relies on it, if it's
not implemented it will simply result in sligthly less efficient
code, so not the end of the world.
---
 test/ruby/test_string.rb | 6 ++++++
 1 file changed, 6 insertions(+)

(limited to 'test/ruby')

diff --git a/test/ruby/test_string.rb b/test/ruby/test_string.rb
index d2099607fd..1011967fe9 100644
--- a/test/ruby/test_string.rb
+++ b/test/ruby/test_string.rb
@@ -3397,6 +3397,12 @@ CODE
     assert_same(str, bar, "uminus deduplicates [Feature #13077] str: #{ObjectSpace.dump(str)} bar: #{ObjectSpace.dump(bar)}")
   end
 
+  def test_uminus_dedup_in_place
+    dynamic = "this string is unique and frozen #{rand}".freeze
+    assert_same dynamic, -dynamic
+    assert_same dynamic, -dynamic.dup
+  end
+
   def test_uminus_frozen
     return unless @cls == String
 
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