From e7dda086170a5eaa037ddd5ebfcdc3aade15a26d Mon Sep 17 00:00:00 2001
From: Jeremy Evans <code@jeremyevans.net>
Date: Fri, 19 Jul 2024 13:08:11 -0700
Subject: Do not set Enumerator::Lazy#zip to use packed format

Enumerator#zip yields a single array, not multiple arguments,
so Enumerator::Lazy#zip should do the same.

Fixes [#20623]
---
 test/ruby/test_lazy_enumerator.rb | 4 ++++
 1 file changed, 4 insertions(+)

(limited to 'test/ruby')

diff --git a/test/ruby/test_lazy_enumerator.rb b/test/ruby/test_lazy_enumerator.rb
index 22127e903a..4dddbab50c 100644
--- a/test/ruby/test_lazy_enumerator.rb
+++ b/test/ruby/test_lazy_enumerator.rb
@@ -489,6 +489,10 @@ EOS
     assert_equal [1, 2, 3], enum.map { |x| x / 2 }
   end
 
+  def test_lazy_zip_map_yield_arity_bug_20623
+    assert_equal([[1, 2]], [1].lazy.zip([2].lazy).map { |x| x }.force)
+  end
+
   def test_lazy_to_enum
     lazy = [1, 2, 3].lazy
     def lazy.foo(*args)
-- 
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