The Kai Way

autotest in Gnome"

autotest是个方便的测试工具，ZenTest的组件之一，对Rspec支持很好。

在Peedcode的教学视频中很多时候看到作者用autotest时，测试结果会以桌面系统Notify的形式通知用户，每次看到都觉得好羡慕。其实在Gnome环境下的同学不用羡慕，因为在Gnome下也可以，把你Home目录下的.autotest文件（附件有），加入以下代码，并把附件中的图片文件放到Home下（把dot改为.）。

require ‘rnotify’ require ‘gtk2’

module Autotest::RNotify
  class Notification
    attr_accessor :verbose, :image_root, :tray_icon, :notification,
                  :image_pass, :image_pending, :image_fail

    def initialize(timeout = 5000,
                   image_root = "#{ENV['HOME']}/.autotest_images" ,
                   verbose = false)
    self.verbose = verbose
    self.image_root = image_root

    puts 'Autotest Hook: loading Notify' if verbose
    Notify.init('Autotest') || raise('Failed to initialize Notify')

    puts 'Autotest Hook: initializing tray icon' if verbose
    self.tray_icon = Gtk::StatusIcon.new
    tray_icon.icon_name = 'face-monkey'
    tray_icon.tooltip = 'RSpec Autotest'

    puts 'Autotest Hook: Creating Notifier' if verbose
    self.notification = Notify::Notification.new('X', nil, nil, tray_icon)
    notification.timeout = timeout

    Thread.new { Gtk.main }
    sleep 1
    tray_icon.embedded? || raise('Failed to set up tray icon')


  def notify(icon, tray, title, message)
    notification.update(title, message, nil)
      notification.pixbuf_icon = icon
      tray_icon.tooltip = "Last Result: #{message}"
      tray_icon.icon_name = tray
      notification.show
    end

    def passed(title, message)
      self.image_pass ||= Gdk::Pixbuf.new("#{image_root}/pass.png", 48,48)
      notify(image_pass, 'face-smile', title, message)
    end

    def pending(title, message)
      self.image_pending ||= Gdk::Pixbuf.new("#{image_root}/pending.png",48,48)
      notify(image_pending, 'face-plain', title, message)
    end

    def failed(title, message)
      self.image_fail ||= Gdk::Pixbuf.new("#{image_root}/fail.png", 48,48)
      notify(image_fail, 'face-sad', title, message)
    end

    def quit
      puts 'Autotest Hook: Shutting Down...' if verbose
      #Notify.uninit
      Gtk.main_quit
    end
  end
  Autotest.add_hook :initialize do |at|
    @notify = Notification.new
  end
  Autotest.add_hook :ran_command do |at|
    results = at.results.last
    puts "the results is #{results}"
    unless results.nil?
      output = results[/(\d+)\s+example?,\s*(\d+)\s+failures?(,\s*(\d+)\s+peding)?/]
      if $~[2].to_i > 0
        @notify.failed("Tests Failed", output)
      elsif $~[4].to_i > 0
        @notify.pending("Tests Pending", output)
      else
        unless at.tainted
          @notify.passed("All Tests Passed", output)
        else
          @notify.passed("Tests Passed", output)
        end
      end
    end
  end

  Autotest.add_hook :quit do |at|
    @notify.quit
  end
end

ohoh～～我们来看看效果怎样，在任意一个加入rspec on rails插件的Project下（当然是写了spec的）执行autotest： notify.png

是不是很有趣呢？当然这个依赖于库ruby-gnome2，ruby-libnotify，都是用各自Linux发行班的包管理软件可以轻松得到的，比如我的arch就是，yaourt ruby-gnome2 ruby-libnotify。这个其实也可以用在unit test下，不过需要修改Autotest.add_hook :ran_command中的正则。

Ruby一个可爱的地方就是配置文件也是代码，代码还是代码。autotest的扩展性真好，这也是得益于Ruby的哲学，要修改一个类的行为就打开它，定义它，很优雅。Code is the best firend of Programmer 。

参考资料： http://www.ikhono.net/2007/12/16/gnome-autotest-notifications

dot_autotest_images.zip