From 54b061f418bbaa4ba6d55e18982330471ccf4a6d Mon Sep 17 00:00:00 2001
From: Jack Nagel <jacknagel@gmail.com>
Date: Tue, 26 Mar 2013 10:45:52 -0500
Subject: [PATCH] jshon: improve test

---
 Formula/jshon.rb | 9 +++++++--
 1 file changed, 7 insertions(+), 2 deletions(-)

diff --git a/Formula/jshon.rb b/Formula/jshon.rb
index 6308397a05..9caa75b912 100644
--- a/Formula/jshon.rb
+++ b/Formula/jshon.rb
@@ -14,7 +14,12 @@ class Jshon < Formula
     man1.install 'jshon.1'
   end
 
-  def test
-    system "echo '[true,false,null]'| #{bin}/jshon -l"
+  test do
+    require 'open3'
+    Open3.popen3("#{bin}/jshon", "-l") do |stdin, stdout, _|
+      stdin.write("[true,false,null]")
+      stdin.close
+      "3" == stdout.read.strip
+    end
   end
 end