Rails - Feb 2010 - SocketError: getaddrinfo: Name or service not known --> error while running test case

Hi all,

I am getting the below error when I try to run my test case. I have
already started selenium RC server (port:4444).. Also I have specified
" 127.0.0.1     localhost " in /etc/hosts ...


:ruby test1.rb
Loaded suite test1
Started
E
Finished in 0.022698 seconds.

  1) Error:
testfestool(Test1):
SocketError: getaddrinfo: Name or service not known
    /usr/lib/ruby/1.8/net/http.rb:560:in `initialize''
    /usr/lib/ruby/1.8/net/http.rb:560:in `open''
    /usr/lib/ruby/1.8/net/http.rb:560:in `connect''
    /usr/lib/ruby/1.8/timeout.rb:56:in `timeout''
    /usr/lib/ruby/1.8/timeout.rb:76:in `timeout''
    /usr/lib/ruby/1.8/net/http.rb:560:in `connect''
    /usr/lib/ruby/1.8/net/http.rb:553:in `do_start''
    /usr/lib/ruby/1.8/net/http.rb:542:in `start''
    /usr/lib/ruby/1.8/net/http.rb:1035:in `request''
    /usr/lib/ruby/1.8/net/http.rb:845:in `post''
    /home/arawat/.gem/ruby/1.8/gems/selenium-client-1.2.18/lib/
selenium/client/protocol.rb:89:in `http_post''
    /home/arawat/.gem/ruby/1.8/gems/selenium-client-1.2.18/lib/
selenium/client/protocol.rb:12:in `remote_control_command''
    /usr/lib/ruby/1.8/timeout.rb:56:in `timeout''
    /usr/lib/ruby/1.8/timeout.rb:76:in `timeout''
    /home/arawat/.gem/ruby/1.8/gems/selenium-client-1.2.18/lib/
selenium/client/protocol.rb:11:in `remote_control_command''
    /home/arawat/.gem/ruby/1.8/gems/selenium-client-1.2.18/lib/
selenium/client/protocol.rb:19:in `string_command''
    /home/arawat/.gem/ruby/1.8/gems/selenium-client-1.2.18/lib/
selenium/client/base.rb:85:in `start_new_browser_session''
    /home/arawat/.gem/ruby/1.8/gems/selenium-client-1.2.18/lib/
selenium/client/base.rb:99:in `start''
    test1.rb:27:in `setup''



The code am using for connection is:

require "rubygems"
require "selenium/client"
require "test/unit"

class Test1 < Test::Unit::TestCase
   def setup
     @verification_errors = []

     @selenium = Selenium::Client::Driver.new \
        :host => "http://127.0.0.1",
        :port => 4444,
        :browser => "*firefox",
        :url => "http://www.google.com/",
        :timeout_in_second =>60

     #start browser session
     @selenium.start
     @selenium.set_context("test1")
   end

   def teardown
     @selenium.stop
     assert_equal [], @verification_errors
   end


Let me know if you need any other additional information. Thanks for
your help in advance :) ..

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