From 9226f3ac80ab9e74f4e6214781bf694d5ca37927 Mon Sep 17 00:00:00 2001
From: Alexander Bulancov <6594487+trinistr@users.noreply.github.com>
Date: Sat, 31 Jan 2026 19:47:15 +0300
Subject: [PATCH] [Ruby 3.2] Add test for no extra escaping in error messages

Ruby no longer escapes control characters and backslashes in an
error message. [Feature #18367]
---
 command_line/error_message_spec.rb | 5 +++++
 1 file changed, 5 insertions(+)

diff --git a/command_line/error_message_spec.rb b/command_line/error_message_spec.rb
index 02150f30ce..8d696e8bb3 100644
--- a/command_line/error_message_spec.rb
+++ b/command_line/error_message_spec.rb
@@ -8,4 +8,9 @@
     out = ruby_exe("end #syntax error", args: "2> #{File::NULL}", exit_status: 1)
     out.chomp.should.empty?
   end
+
+  it "is not modified with extra escaping of control characters and backslashes" do
+    out = ruby_exe('raise "\e[31mRed\x1b[0m error\\\message"', args: "2>&1", exit_status: 1)
+    out.chomp.should include("\e[31mRed\e[0m error\\message")
+  end
 end