Sending a POST using curb

require 'rubygems'
require 'curb'

require 'webrick'

require 'test/unit'

# keep webrick quiet
class ::WEBrick::HTTPServer
  def access_log(config, req, res)
    # nop
  end
end
class ::WEBrick::BasicLog
  def log(level, data)
    # nop
  end
end

class TestServlet < WEBrick::HTTPServlet::AbstractServlet
  def do_POST(req,res)
    # echo the request body in the response body
    res.body = req.body
    res['Content-Type'] = "text/plain"
  end
end

class TestCase < Test::Unit::TestCase

  def setup
    @pid = fork do
      server = WEBrick::HTTPServer.new :Port => '9213'
      server.mount('/process.php', TestServlet)
      trap("INT") { server.shutdown }
      trap("TERM") { server.shutdown }
      server.start
    end
  end

  def teardown
    Process.kill("INT",@pid)
  end

  def test_it
    response = Curl::Easy.http_post("http://127.0.0.1:9213/process.php",
                                     Curl::PostField.content('Type', 'MC'),
                                     Curl::PostField.content('CardNum', '5454545454545454'),
                                     Curl::PostField.content('ExpDate', '0512') )
    assert_equal "Type=MC&CardNum=5454545454545454&ExpDate=0512", response.body_str
  end
end