cowpatty 4.6, add test

Closes Homebrew/homebrew#38797.

Signed-off-by: Brett Koonce <koonce@gmail.com>

Formula/cowpatty.rb

@@ -1,13 +1,28 @@
-require 'formula'
-
 class Cowpatty < Formula
-  homepage 'http://www.willhackforsushi.com/?page_id=50'
-  url 'http://www.willhackforsushi.com/code/cowpatty/4.3/cowpatty-4.3.tgz'
-  sha1 '8b7cb2015d0534031827f2f06135bf5cf5929d35'
+  homepage "http://www.willhackforsushi.com/?page_id=50"
+  url "http://www.willhackforsushi.com/code/cowpatty/4.6/cowpatty-4.6.tgz"
+  sha256 "cd3fc113e5052d3ee08ab71aa87edf772d044f760670c73fde5d5581d7803bc2"
+
+  depends_on "openssl"
+
+  resource "capture" do
+    url "http://www.lovemytool.com/files/test.pcap"
+    sha256 "35fba0f92c5e8fb0710453d0c2c5fe5e9c64857dd53b219977871340b22c4942"
+  end
 
   def install
-    ENV.j1
-    inreplace "Makefile", "/usr/local/", "#{prefix}/"
-    system "make install"
+    system "make", "BINDIR=#{bin}", "install"
+  end
+
+  test do
+    (testpath/"dict").write <<-EOS.undent
+      isthisthepassword?
+      maybethisoneinstead
+      subnet16121930
+    EOS
+    resource("capture").stage do
+      system bin/"cowpatty", "-r", "test.pcap",
+             "-f", testpath/"dict", "-s", "dd-wrt2"
+    end
   end
 end