class Vnu < Formula desc "Nu Markup Checker: command-line and server HTML validator" homepage "https://validator.github.io/validator/" url "https://github.com/validator/validator/releases/download/17.9.0/vnu.jar_17.9.0.zip" sha256 "e8249dabb733520307bad357d5e4cc59db6686964d5227e916133d39f018a2d0" version_scheme 1 bottle :unneeded depends_on :java => "1.8+" 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