From bc002971b6ad483dbf69b8a275c44412bb6ab954 Mon Sep 17 00:00:00 2001
From: Nobuyoshi Nakada <nobu@ruby-lang.org>
Date: Wed, 27 Dec 2023 17:49:59 +0900
Subject: [Bug #20094] Distinguish `begin` and parentheses

---
 test/ruby/test_whileuntil.rb | 18 ++++++++++++++++++
 1 file changed, 18 insertions(+)

(limited to 'test/ruby')

diff --git a/test/ruby/test_whileuntil.rb b/test/ruby/test_whileuntil.rb
index 121c44817d..ff6d29ac4a 100644
--- a/test/ruby/test_whileuntil.rb
+++ b/test/ruby/test_whileuntil.rb
@@ -73,6 +73,24 @@ class TestWhileuntil < Test::Unit::TestCase
     }
   end
 
+  def test_begin_while
+    i = 0
+    sum = 0
+    begin
+      i += 1
+      sum += i
+    end while i < 10
+    assert_equal([10, 55], [i, sum])
+
+    i = 0
+    sum = 0
+    (
+      i += 1
+      sum += i
+    ) while false
+    assert_equal([0, 0], [i, sum])
+  end
+
   def test_until
     i = 0
     until i>4
-- 
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