macek

# db/migrate/20101004063749_create_photos.rb

class CreatePhotos < ActiveRecord::Migration
  def self.up
    create_table :photos do |t|
      t.string :name,         :null => false
      t.binary :data,         :null => false
      t.string :filename
      t.string :mime_type
      t.timestamps

zhengjia

=Navigating=
    visit('/projects')
    visit(post_comments_path(post))

=Clicking links and buttons=
    click_link('id-of-link')
    click_link('Link Text')
    click_button('Save')
    click('Link Text') # Click either a link or a button
    click('Button Value')

henrik

# Recursively diff two hashes, showing only the differing values.
# By Henrik Nyh <http://henrik.nyh.se> 2009-07-14 under the MIT license.
#
# Example:
#
# a = {
#   "same"   => "same",
#   "diff"   => "a",
#   "only a" => "a",
#   "nest" => {