https://git.ruby-lang.org/ruby.git/commit/?id=9066496aa3

From 9066496aa33b0b74f664cfddfbc9fc307225acb6 Mon Sep 17 00:00:00 2001
From: aycabta <aycabta@g...>
Date: Fri, 10 Sep 2021 07:57:53 +0900
Subject: [ruby/reline] Add a test that autocomplete dialog doesn't crash when
 empty

https://github.com/ruby/reline/commit/9c0080c27f
---
 test/reline/yamatanooroti/test_rendering.rb | 10 ++++++++++
 1 file changed, 10 insertions(+)

diff --git a/test/reline/yamatanooroti/test_rendering.rb b/test/reline/yamatanooroti/test_rendering.rb
index 06d59c2..29a5268 100644
--- a/test/reline/yamatanooroti/test_rendering.rb
+++ b/test/reline/yamatanooroti/test_rendering.rb
@@ -924,6 +924,16 @@ begin https://github.com/ruby/ruby/blob/trunk/test/reline/yamatanooroti/test_rendering.rb#L924
       EOC
     end
 
+    def test_autocomplete_empty
+      start_terminal(20, 30, %W{ruby -I#{@pwd}/lib #{@pwd}/test/reline/yamatanooroti/multiline_repl --autocomplete}, startup_message: 'Multiline REPL.')
+      write('Street')
+      close
+      assert_screen(<<~'EOC')
+        Multiline REPL.
+        prompt> Street
+      EOC
+    end
+
     def test_autocomplete
       start_terminal(20, 30, %W{ruby -I#{@pwd}/lib #{@pwd}/test/reline/yamatanooroti/multiline_repl --autocomplete}, startup_message: 'Multiline REPL.')
       write("Str")
-- 
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