fearoffish

Your Guide to Testing

This book will assume the user already knows Ruby and Ruby on Rails.  It will focus on the different techniques you can use to test behaviour in Ruby/Rails applications.

Table of Contents

Chapter 1: Why Test?
Chapter 2: The Process
Chapter 3: Recipes
  Fixtures or not

fearoffish

# Comments may or may not make sense.
class Array
  def bigger?( ary )
    # Check that self element is greater than comparison element
    # Uses 0 if either is nil
    if (self[0]||0) > (ary[0]||0)
      return true
    else
      # if either of them don't exist as elements, comparison is bigger
      # so return false

fearoffish

# Rails 2.1, with latest shoulda

  context "POST #create" do
    context "with an existing email address" do
      setup do
        @user = Factory.create(:user)
        post :create, :email => @user.email
      end
      
      should_respond_with :redirect

fearoffish

#!/usr/bin/env ruby

require 'rubygems'
require 'directory_watcher'

puts "Watching #{Dir.pwd}/test/**/*.rb'"
dw = DirectoryWatcher.new "#{Dir.pwd}/test", :glob => '**/*.rb', :interval => 2
dw.add_observer do |*args| 
  args.each do |event| 
    case event.type

fearoffish

require "rubygems"
require "redis"
require 'benchmark'

count = 1000000
r = Redis.new

Benchmark.bm(10) do |x|
  x.report("base") do
    count.to_i.times do |i|

fearoffish

require "rubygems"
require "mongo_mapper"
require 'benchmark'

count = 1000000

MongoMapper.connection = Mongo::Connection.new('localhost')
MongoMapper.database = 'benchmark'

class Person

fearoffish

require "rubygems"
require "benchmark"
require "dm-core"

count = 1000000

class Person
  include DataMapper::Resource
  
  property :id, Serial

fearoffish

ruby-1.8.7-p249 (master)✕ % rake -T                                                                                                                                                                                                                 
/Users/fearoffish/.rvm/gems/ruby-1.8.7-p249@retailjuice/bundler/gems/rails-16a5e918a06649ffac24fd5873b875daf66212ad-master/activesupport/lib/active_support/core_ext/object/try.rb:29: [BUG] rb_add_method: unsupported method type (8)

ruby 1.9.2dev (2009-07-18 trunk 24186) [i386-darwin10.3.0]

-- control frame ----------
c:0057 p:---- s:0159 b:0159 l:000158 d:000158 CFUNC  :alias_method
c:0056 p:0044 s:0154 b:0154 l:000153 d:000153 CLASS  /Users/fearoffish/.rvm/gems/ruby-1.8.7-p249@retailjuice/bundler/gems/rails-16a5e918a06649ffac24fd5873b875daf66212ad-master/acti
c:0055 p:0009 s:0152 b:0152 l:000151 d:000151 TOP    /Users/fearoffish/.rvm/gems/ruby-1.8.7-p249@retailjuice/bundler/gems/rails-16a5e918a06649ffac24fd5873b875daf66212ad-master/acti
c:0054 p:---- s:0150 b:0150 l

fearoffish

# AWESOME backtrace.  Thank you!

NoMethodError (undefined method `object' for #<ArticlesController:0x1030abfa0>):
  

# The two lines above are the backtrace.  Empty!  :(

fearoffish

#!/usr/bin/env ruby

ZSHRC_FILENAME = File.expand_path("~/.zshrc")
ZSHRC_CONTENTS = File.read(ZSHRC_FILENAME)
THEMES         = %x{ls ~/.oh-my-zsh/themes}.split(" ").collect {|t| t.gsub(".zsh-theme", "")}
ORIGINAL_THEME = ZSHRC_CONTENTS.scan(/export ZSH_THEME="(.*?)"/)[0].to_s

def change_theme_to(theme)
  File.open(ZSHRC_FILENAME, 'w') {|f| f.write(ZSHRC_CONTENTS.gsub(/export ZSH_THEME="(.*?)"/, %[export ZSH_THEME="#{theme}"])) }
end