1 files changed, 12 insertions, 0 deletions
diff --git a/bootstraptest/test_thread.rb b/bootstraptest/test_thread.rb
index ce90737ebf..e586ee274e 100644
--- a/bootstraptest/test_thread.rb
+++ b/bootstraptest/test_thread.rb
@@ -216,6 +216,18 @@ assert_equal 'true', %{
   end
 }
 
+assert_equal 'ok', %{
+  open("zzz.rb", "w") do |f|
+    f.puts <<-END
+      Thread.new { fork { GC.start } }.join
+      pid, status = Process.wait2
+      $result = status.success? ? :ok : :ng
+    END
+  end
+  require "zzz.rb"
+  $result
+}
+
 assert_finish 3, %{
   th = Thread.new {sleep 2}
   th.join(1)