samnang

Install Rails 3.1

gem install rails

generate new app, skipping Test::Unit file generation

rails new my_app -T

Set up Gemfile

samnang

# RSpec 2.0 syntax Cheet Sheet by http://ApproachE.com

# defining spec within a module will automatically pick Player::MovieList as a 'subject' (see below)
module Player
	describe MovieList, "with optional description" do
		  
	  it "is pending example, so that you can write ones quickly"
	  
	  it "is already working example that we want to suspend from failing temporarily" do
		pending("working on another feature that temporarily breaks this one")

samnang

#!/bin/bash -e                                                                                                   
### BEGIN INIT INFO                                                                                              
# Provides:          thinking_sphinx                                                                             
# Default-Start:     2 3 4 5                                                                                     
# Default-Stop:      0 1 6                                                                                       
# Short-Description: Start/stop Sphinx daemon for Thinking Sphinx                                                
### END INIT INFO                                                                                                

CONFIG_FILE=/etc/default/thinking_sphinx.conf
. $CONFIG_FILE || exit                       

samnang

require 'test/unit/assertions'
include Test::Unit::Assertions
assert_equal "1.9.2", RUBY_VERSION

# A Ruby meta-programming puzzle for polite programmers.

# This puzzle was created by Matt Wynne (@mattwynne) on 2011-04-10 inspired by Jim Weirich's
# talk at the Scottish Ruby Conference 2011.
#
# The challenge is: you have a class Foo which you want to monkey-patch, but politely.

samnang

le API design

A consumer needs to lookup a single user by their github name (jordanbyron). That consumer doesn't know the user's ID. There is a possibility to also search by email and twitter.

"/users.json?github=jordanbyron"
=> [{github: "jordanbyron", id: 1}]

When there are no results an empty array is returned

"/users.json?github=noexist"

samnang

Then /^(?:|I )should see "([^\"]*)"(?: within "([^\"]*)")?$/ do |text, selector|
  with_scope(selector) do
    if defined?(Spec::Rails::Matchers)
      page.should have_xpath("//*[text()='#{text}']", :visible => true)
    else
      assert page.has_xpath("//*[text()='#{text}']", :visible => true)
    end
  end
end

samnang

# Make gems available
require 'rubygems'

# http://drnicutilities.rubyforge.org/map_by_method/
begin
  require 'map_by_method'
rescue LoadError
  puts "map_by_method is not installed. To enable, run: gem install map_by_method"
end

samnang

class A
  @@a = 1
  @a = 2
  a = 3
end

samnang

def tip(msg); puts; puts msg; puts "-"*100; end

#
# 30 Ruby 1.9 Tips, Tricks & Features:
# http://www.igvita.com/2011/02/03/new-ruby-19-features-tips-tricks/
#

tip "Upgrading to Ruby 1.9 is simple: rvm install 1.9.2 && rvm --default 1.9.2"

tip "Ruby 1.9 supports named captures in regular expressions!"

samnang

class A
end

puts "--" + A.instance_methods(false).join(', ')

class A
  def otro
  end
end