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/15.4.12/vnu.jar_15.4.12.zip" version "20150412" sha256 "2ae32a816aea9a7f60f359bdace9324d1a5532da61b8fb494eefdddc85148ba9" bottle :unneeded 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