```
diff --git a/test/io/console/test_io_console.rb b/test/io/console/test_io_console.rb
index dbc1630..9b02a16 100644
--- a/test/io/console/test_io_console.rb
+++ b/test/io/console/test_io_console.rb
@@ -418,9 +418,21 @@ defined?(PTY) and defined?(IO.console) and TestIO_Console.class_eval do
     s.close if s
   end
 
+  FFI_SETSID = <<src
+require 'ffi'
+module Setsid
+  extend FFI::Library
+  ffi_lib FFI::Library::LIBC
+
+  attach_function :setsid, [], :long
+end
+Setsid.setsid
+src
+
   def run_pty(src, n = 1)
-    pend("PTY.spawn cannot control terminal on JRuby") if RUBY_ENGINE == 'jruby'
+    # pend("PTY.spawn cannot control terminal on JRuby") if RUBY_ENGINE == 'jruby'
     
+src = FFI_SETSID + "\n" + src
     r, w, pid = PTY.spawn(EnvUtil.rubybin, "-I#{TestIO_Console::PATHS.join(File::PATH_SEPARATOR)}", "-rio/console", "-e", src)
   rescue RuntimeError
     omit $!

```