require "formula" class Vnu < Formula homepage "https://validator.github.io/validator/" url "https://github.com/validator/validator/releases/download/20141006/vnu-20141013.jar.zip" sha1 "48bfcb41e6faf9130c5f1698497e0ec15ddfd657" version "20141013" def install libexec.install "vnu.jar" bin.write_jar_script libexec/"vnu.jar", "vnu" end test do path = testpath/"index.html" path.write <<-EOS hi EOS system bin/"vnu", path end end