Looking for a pretty code viewer for this blog...

Here's some code as a test:

require File.dirname(__FILE__) + '/../test_helper.rb'

class FundastacheTest < Test::Unit::TestCase
  include Rack::Test::Methods

  def app
    @app ||= FundAStache::Application
  end

  def test_home_page_ok
    get '/'
    assert last_response.ok?
  end

  def test_404_error
    get '/does_not_exist'
    assert !last_response.ok?
  end

  def test_custom_404_error
    get '/does_not_exist'
    assert last_response.body.include?("what\'cha lookin\' for?")
  end

end

and I want it to look nice. How can we do that with Wordpress?