捆绑包中包含的宝石：
- 捆绑器 (1.2.4)
- 子进程（0.3.9）
- 菲（1.4.0）
- json (1.7.7)
- 哑剧类型 (1.21)
- multi_json (1.6.1)
- 机架 (1.5.2)
- 休息客户端（1.6.7）
- rubyzip (0.9.9)
- 硒网络驱动程序（2.31.0）
- 西纳特拉 (1.3.0 063bcb1)
- sqlite3 (1.3.7)
- sqlite3-ruby (1.3.3)
- 系统名称 (0.9.1)
- 测试员（0.1.15）
- 倾斜 (1.3.5)
- 特洛普 (2.0)
- 用户代理（0.4.16）
- 网络套接字（1.0.7）
- xml-简单 (1.1.2)
代码/异常：
csut11:current demo$ bundle exec irb
1.9.2-p290 :001 > require "selenium-webdriver"
=> true
1.9.2-p290 :002 > browser = Selenium::WebDriver.for :safari
EOFError: end of file reached
from /Users/demo/.rvm/gems/ruby-1.9.2-p290/gems/selenium-webdriver-2.31.0/lib/selenium/webdriver/safari/server.rb:37:in `read_nonblock'
from /Users/demo/.rvm/gems/ruby-1.9.2-p290/gems/selenium-webdriver-2.31.0/lib/selenium/webdriver/safari/server.rb:37:in `receive'
from /Users/demo/.rvm/gems/ruby-1.9.2-p290/gems/selenium-webdriver-2.31.0/lib/selenium/webdriver/safari/bridge.rb:60:in `raw_execute'
from /Users/demo/.rvm/gems/ruby-1.9.2-p290/gems/selenium-webdriver-2.31.0/lib/selenium/webdriver/safari/bridge.rb:40:in `create_session'
from /Users/demo/.rvm/gems/ruby-1.9.2-p290/gems/selenium-webdriver-2.31.0/lib/selenium/webdriver/remote/bridge.rb:68:in `initialize'
from /Users/demo/.rvm/gems/ruby-1.9.2-p290/gems/selenium-webdriver-2.31.0/lib/selenium/webdriver/safari/bridge.rb:23:in `initialize'
from /Users/demo/.rvm/gems/ruby-1.9.2-p290/gems/selenium-webdriver-2.31.0/lib/selenium/webdriver/common/driver.rb:47:in `new'
from /Users/demo/.rvm/gems/ruby-1.9.2-p290/gems/selenium-webdriver-2.31.0/lib/selenium/webdriver/common/driver.rb:47:in `for'
from /Users/demo/.rvm/gems/ruby-1.9.2-p290/gems/selenium-webdriver-2.31.0/lib/selenium/webdriver.rb:67:in `for'
from (irb):2
from /Users/demo/.rvm/rubies/ruby-1.9.2-p290/bin/irb:16:in `<main>'
1.9.2-p290 :003 >