class Vnu < Formula homepage "https://validator.github.io/validator/" url "https://github.com/validator/validator/releases/download/20150207/vnu-20150207.jar.zip" sha1 "30f840cb36185b27e4941eeff43929b6bbe05d0c" version "20150207" def install libexec.install "vnu.jar" bin.write_jar_script libexec/"vnu.jar", "vnu" end test do path = testpath/"index.html" path.write <<-EOS.undent hi EOS system bin/"vnu", path end end