From e47078fb306bc6ec07b01df8d0c811c43ff6e0ae Mon Sep 17 00:00:00 2001
From: Kevin Newton <kddnewton@gmail.com>
Date: Thu, 20 Mar 2025 12:38:11 -0400
Subject: [PATCH] [ruby/prism] Update ractor_test.rb per review

https://github.com/ruby/prism/commit/fd96a6821f
---
 test/prism/ractor_test.rb | 22 +++++++---------------
 1 file changed, 7 insertions(+), 15 deletions(-)

diff --git a/test/prism/ractor_test.rb b/test/prism/ractor_test.rb
index c090ecc32b..fa53780744 100644
--- a/test/prism/ractor_test.rb
+++ b/test/prism/ractor_test.rb
@@ -1,11 +1,9 @@
 # frozen_string_literal: true
 
-return unless defined?(Ractor)
+return if !defined?(Ractor) || !defined?(fork)
 
 require_relative "test_helper"
 
-return if Prism::TestCase.windows?
-
 module Prism
   class RactorTest < TestCase
     def test_version
@@ -60,19 +58,13 @@ module Prism
     # Note that this must be done in a subprocess, otherwise it can mess up
     # CRuby's test suite.
     def with_ractor(*arguments, &block)
-      reader, writer = IO.pipe
-
-      pid = fork do
-        reader.close
-        writer.puts(ignore_warnings { Ractor.new(*arguments, &block) }.take)
+      IO.popen("-") do |reader|
+        if reader
+          reader.gets.chomp
+        else
+          puts(ignore_warnings { Ractor.new(*arguments, &block) }.take)
+        end
       end
-
-      writer.close
-      result = reader.gets.chomp
-      reader.close
-
-      Process.wait(pid)
-      result
     end
   end
 end