难点在于如果构造出一个假的imap server，然imap client能”连接“上，rspec代码为：

describe 'MyImapClient' do

  context "test imap" do

    it "should be able to get my mail using imap connect" do

      imaps_test do |port|

        @imap_client = Net::IMAP.new("localhost", :port => port, :

require 'webmock/rspec'

发现执行

Feedzirra::Feed.fetch_and_parse(‘http://news.yahoo.com/rss/economy’)

没有触发webmock

原因是为了实现高效的数据抓取，Feedzirra使用了curb，curb不是用net::http，所以webmock无法勾住。

那只好勾住fetch_and_parse，让这个方法返回已经适当的值就行，具体如下：

      stub(Feedzirra::Feed).fetch_and_parse do |url|

        resp = Net::HTTP.g

# with block argument

MyClass.run { puts "start" }

# rspec mocks:

MyClass.stub!(:run).and_yield

# rr:

mock(MyClass).run { |block| block.call }

# by argument type

# rr:

stub(User).find do |id|

  if id != '123'

  raise "Unexpected id #{id.inspect} passed to me"

  else

    fake

Invalid gemspec in [/Users/rain/.rvm/gems/ruby-1.9.2-p180@remotipart/specifications/actionmailer-3.2.0.gemspec]: Illformed requirement ["#<Syck::DefaultKey:0x00000105543c50> 3.2.0"]

gem list

*** LOCAL GEMS ***

bundler (1.0.18)

hirb (0.4.5)

rake (0.8.7)

rubygems-update (1.7.2)

solution:

Visor是个很酷的Terminal辅助工具，但有时在刷页面debugger时总是需要手工调出来不是很“爽”，于是有了比较爽的解决方法。

建一个apple script，用来调出visor：

~/bin/visor

内容:

#!/bin/sh

END

加执行权限：

chmod +x ~/bin/visor

@consumer  = OAuth::Consumer.new(CONSUMER_KEY, CONSUMER_SECRET, :site => 'http://www.tumblr.com')

request_token = @consumer.get_request_token(:oauth_callback => url('/authorize')))

open request_token.authorize_url to get oauth_verifier

# in authorize action, use oauth_verifier to get access token, secret

access_token = request_token.get_access_token(:oauth_verifier =>

给Photo使用了 CarrierWave 来处理图片上传和使用 MiniMagick 做缩略图生成

class Photo < ActiveRecord::Base  

  mount_uploader :image, ImageUploader

end

class ImageUploader < CarrierWave::Uploader::Base

  include CarrierWave::MiniMagick

  # Create different versions of your uploaded files:

  version :t

class SystemMailer < ActionMailer::Base

  add_template_helper(ApplicationHelper)

end

class AddReservationsCountToRestaurants < ActiveRecord::Migration

  def change

    add_column :restaurants, :reservations_count, :integer, :default => 0

    say_with_time "update counter cache" do

      Restaurant.reset_column_information

      Restaurant.find_each do |r|