class Vnu < Formula homepage "https://validator.github.io/validator/" url "https://github.com/validator/validator/releases/download/15.3.28/vnu.jar_15.3.28.zip" sha256 "5b7d17fca4900253d30d0b367afa1b7afc3b8f09f3cfa4e4e656e679b21d7841" version "20150328" def install libexec.install "vnu.jar" bin.write_jar_script libexec/"vnu.jar", "vnu" end test do (testpath/"index.html").write <<-EOS.undent hi EOS system bin/"vnu", testpath/"index.html" end end