From 072d5a2fe1a9dd0c07ff590db47769d15dc51888 Mon Sep 17 00:00:00 2001
From: Sam Saffron <sam.saffron@gmail.com>
Date: Thu, 22 Aug 2024 12:48:37 +1000
Subject: [PATCH] Add test for mini racer forking safety

---
 test/mini_racer_test.rb | 12 ++++++++++++
 test/test_forking.rb    |  2 ++
 2 files changed, 14 insertions(+)

diff --git a/test/mini_racer_test.rb b/test/mini_racer_test.rb
index c21e889a..cef234e3 100644
--- a/test/mini_racer_test.rb
+++ b/test/mini_racer_test.rb
@@ -1164,4 +1164,16 @@ def test_threading_safety
     Thread.new { MiniRacer::Context.new.eval("100") }.join
     GC.start
   end
+
+
+  if RUBY_ENGINE == "truffleruby"
+    skip "TruffleRuby forking is not supported"
+  else
+    def test_forking
+      `bundle exec ruby test/test_forking.rb`
+      if $?.exitstatus != 0
+        assert false, "forking test failed"
+      end
+    end
+  end
 end
diff --git a/test/test_forking.rb b/test/test_forking.rb
index 8490b03c..abc705ce 100644
--- a/test/test_forking.rb
+++ b/test/test_forking.rb
@@ -1,4 +1,5 @@
 # use bundle exec to run this script
+#
 require 'mini_racer'
 
 MiniRacer::Platform.set_flags! :single_threaded
@@ -25,4 +26,5 @@ def trigger_gc
 
 if Process.respond_to?(:fork)
   Process.wait fork { puts @ctx.eval("a"); @ctx.dispose; puts Process.pid; trigger_gc; puts "done #{Process.pid}" }
+  exit $?.exitstatus || 1
 end