From d1b6ff42fa0c7345713ec5e40c9cd782dac88948 Mon Sep 17 00:00:00 2001
From: Nobuyoshi Nakada <nobu@ruby-lang.org>
Date: Mon, 26 Jun 2023 13:49:02 +0900
Subject: [PATCH] Add the chopsticks code at RubyKaigi2023

---
 test/test_trick.rb | 24 ++++++++++++++++++++++++
 1 file changed, 24 insertions(+)

diff --git a/test/test_trick.rb b/test/test_trick.rb
index 201dd50b9ba567..f0e7eb23b7c26c 100644
--- a/test/test_trick.rb
+++ b/test/test_trick.rb
@@ -214,6 +214,30 @@ def test_03_mame
   end
 end
 
+class TestRubyKaigi2023🥢 < Test::Unit::TestCase
+  CHOPSTICKS = [<<~'0', <<~'1'] # by mame
+  BEGIN{q=:Ruby};p||=:Enjoy;END{puts p,q||2023}
+  0
+  q=print(q||"/:|}\n")||p&&:@Matsumoto;p=:Kaigi
+  1
+
+  def test_chopsticks_0
+    assert_in_out_err([], CHOPSTICKS[0], %w[Enjoy Ruby])
+  end
+
+  def test_chopsticks_1
+    assert_in_out_err([], CHOPSTICKS[1], %w[/:|}])
+  end
+
+  def test_chopsticks_0_1
+    assert_in_out_err([], "#{CHOPSTICKS[0]}\n#{CHOPSTICKS[1]}", %w[RubyKaigi @Matsumoto])
+  end
+
+  def test_chopsticks_1_0
+    assert_in_out_err([], "#{CHOPSTICKS[1]}\n#{CHOPSTICKS[0]}", %w[RubyKaigi 2023])
+  end
+end
+
 # https://github.com/mame/all-ruby-quine
 class TestAllRubyQuine < Test::Unit::TestCase
   def test_all_ruby_quine