test/test_stackprof.rb in stackprof-0.2.20 vs test/test_stackprof.rb in stackprof-0.2.21

@@ -306,6 +306,6 @@
     IO.select([r], nil, nil, 0.2)
   ensure
     r.close
     w.close
   end
-end
+end unless RUBY_ENGINE == 'truffleruby'