[Rails] RSpecによるBDD（振舞駆動開発）の基本 [SporkとGuardも] ref: http://qiita.com/kidachi_/items/cb8910eb74e924456df9

.rspec

--colour
--drb

file0.sh

$ rails new rspec_sample --skip-test-unit

file1.txt

group :development, :test do
  gem 'sqlite3', '1.3.8'
  gem 'rspec-rails', '2.13.1'
end

group :test do
  gem 'selenium-webdriver', '2.35.1'
  gem 'capybara', '2.1.0'
end

group :production do
  gem 'pg', '0.15.1'
  gem 'rails_12factor', '0.0.2'
end

file10.sh

$ bundle exec rspec spec/requests/static_pages_spec.rb
F

Failures:

  1) StaticPages Home page should have the content 'Micro'
     Failure/Error: expect(page).to have_content('Micro')
       expected #has_content?("Micro") to return true, got false
     # ./spec/requests/static_pages_spec.rb:7:in `block (3 levels) in <top (required)>'

Finished in 0.83735 seconds
1 example, 1 failure

Failed examples:

rspec ./spec/requests/static_pages_spec.rb:5 # StaticPages Home page should have the content 'Micro'

Randomized with seed 4199

file12.sh

$ bundle exec rspec spec/requests/static_pages_spec.rb
.

Finished in 0.07615 seconds
1 example, 0 failures

Randomized with seed 11765

file13.txt

~
group :development, :test do
  gem 'sqlite3', '1.3.8'
  gem 'rspec-rails', '2.13.1'
  gem 'guard-rspec', '2.5.0'
end
~

file14.sh

$ bundle install
#Guardを初期化し、RSpecと一緒に動作するようにする。
$ bundle exec guard init rspec

file15.txt

require 'active_support/inflector'

#失敗したテストが後にパスしたとき、他の余分なテストが実行されないようにする
guard 'rspec', all_after_pass: false do
~
  # Custom Rails Tutorial specs
  watch(%r{^app/controllers/(.+)_(controller)\.rb$})  do |m|
    ["spec/routing/#{m[1]}_routing_spec.rb",
     "spec/#{m[2]}s/#{m[1]}_#{m[2]}_spec.rb",
     "spec/acceptance/#{m[1]}_spec.rb",
     (m[1][/_pages/] ? "spec/requests/#{m[1]}_spec.rb" :
                       "spec/requests/#{m[1].singularize}_pages_spec.rb")]
  end
  watch(%r{^app/views/(.+)/}) do |m|
    (m[1][/_pages/] ? "spec/requests/#{m[1]}_spec.rb" :
                      "spec/requests/#{m[1].singularize}_pages_spec.rb")
  end
  watch(%r{^app/controllers/sessions_controller\.rb$}) do |m|
    "spec/requests/authentication_pages_spec.rb"
  end
~
end

file16.sh

$ bundle exec guard

file17.txt

~
group :development, :test do
  gem 'sqlite3', '1.3.8'
  gem 'rspec-rails', '2.13.1'
  gem 'guard-rspec', '2.5.0'
  gem 'spork-rails', '4.0.0'
  gem 'guard-spork', '1.5.0'
  gem 'childprocess', '0.3.6'
end
~

file18.sh

$ bundle install
$ bundle exec spork --bootstrap

file2.sh

$ rails g controller <ClassName> <ActionName(任意個数)>

file2.txt

$ rails g controller <ClassName> <ActionName(任意個数)>

file20.txt

$ bundle exec spork
#--drbオプションを付ける
$ time bundle exec rspec spec/requests/static_pages_spec.rb --drb
......

6 examples, 0 failures

real    0m2.649s
user    0m1.259s
sys 0m0.258s```

file22.sh

$ bundle exec guard init spork

file23.txt

guard 'rspec', all_after_pass: false do
↓
guard 'rspec', after_all_pass: false, cli: '--drb' do

file24.sh

$ bundle exec guard

file25.sh

18:43:40 - INFO - Starting Spork for RSpec, Test::Unit
Couldn't find a supported test framework that begins with 'testunit'

Supported test frameworks:
( ) Cucumber
(*) RSpec

Legend: ( ) - not detected in project   (*) - detected
Using RSpec, Rails
Preloading Rails environment
Loading Spork.prefork block...
Spork is ready and listening on 8989!
18:44:10 - ERROR - Could not start Spork server for RSpec, Test::Unit after 30 seconds. I will continue waiting for a further 60 seconds.

18:45:10 - ERROR - Could not start Spork server for RSpec, Test::Unit. Make sure you can use it manually first.

file25.txt

$ kill -9 `pgrep -f 'spork'`
$ kill -9 `pgrep -f 'guard'`
$ bundle exec guard

file26.sh

18:43:40 - INFO - Starting Spork for RSpec, Test::Unit
Couldn't find a supported test framework that begins with 'testunit'

Supported test frameworks:
( ) Cucumber
(*) RSpec

Legend: ( ) - not detected in project   (*) - detected
Using RSpec, Rails
Preloading Rails environment
Loading Spork.prefork block...
Spork is ready and listening on 8989!
18:44:10 - ERROR - Could not start Spork server for RSpec, Test::Unit after 30 seconds. I will continue waiting for a further 60 seconds.

18:45:10 - ERROR - Could not start Spork server for RSpec, Test::Unit. Make sure you can use it manually first.

file26.txt

-guard 'spork', :cucumber_env => { 'RAILS_ENV' => 'test' }, :rspec_env => { 'RAILS_ENV' => 'test' } do
+guard 'spork', :cucumber_env => { 'RAILS_ENV' => 'test' }, :rspec_env => { 'RAILS_ENV' => 'test' }, :test_unit => false do

file27.txt

-guard 'spork', :cucumber_env => { 'RAILS_ENV' => 'test' }, :rspec_env => { 'RAILS_ENV' => 'test' } do
+guard 'spork', :cucumber_env => { 'RAILS_ENV' => 'test' }, :rspec_env => { 'RAILS_ENV' => 'test' }, :test_unit => false do

file3.sh

$ rails g controller StaticPages home help --no-test-framework

file5.sh

 $ rails g controller FooBars baz quux
//controller名とaction名
 $ rails destroy  controller FooBars baz quux

file6.sh

$ rails g model Foo bar:string baz:integer
//model名のみでok
$ rails destroy model Foo

file7.sh

$ rake db:migrate
//1つ前の状態に戻す
$ rake db:rollback
//最初の状態に戻す
$ rake db:migrate VERSION=0

file8.sh

$ rails g integration_test static_pages

Gemfile

~
group :development, :test do
  gem 'sqlite3', '1.3.8'
  gem 'rspec-rails', '2.13.1'
  gem 'guard-rspec', '2.5.0'
  gem 'spork-rails', '4.0.0'
  gem 'guard-spork', '1.5.0'
  gem 'childprocess', '0.3.9'
end
~

Guardfile

guard 'rspec', all_after_pass: false do
↓
guard 'rspec', after_all_pass: false, cli: '--drb' do

home.html.erb

<h1>Micro</h1>
<p>
  This is the home page for the
  <a href="http://railstutorial.jp/">Ruby on Rails Tutorial</a>
  sample application.
</p>

routes.rb

SampleApp::Application.routes.draw do
  get "static_pages/home"
  get "static_pages/help"
  ~
end

spec_helper.rb

require 'rubygems'
require 'spork'

Spork.prefork do
  ENV["RAILS_ENV"] ||= 'test'
  require File.expand_path("../../config/environment", __FILE__)
  require 'rspec/rails'
  require 'rspec/autorun'

  # Requires supporting ruby files with custom matchers and macros, etc,
  # in spec/support/ and its subdirectories.
  Dir[Rails.root.join("spec/support/**/*.rb")].each {|f| require f}

  # Checks for pending migrations before tests are run.
  # If you are not using ActiveRecord, you can remove this line.
  ActiveRecord::Migration.check_pending! if defined?(ActiveRecord::Migration)

  RSpec.configure do |config|
    # ## Mock Framework
    #
    # If you prefer to use mocha, flexmock or RR, uncomment the appropriate line:
    #
    # config.mock_with :mocha
    # config.mock_with :flexmock
    # config.mock_with :rr

    # Remove this line if you're not using ActiveRecord or ActiveRecord fixtures
    config.fixture_path = "#{::Rails.root}/spec/fixtures"

    # If you're not using ActiveRecord, or you'd prefer not to run each of your
    # examples within a transaction, remove the following line or assign false
    # instead of true.
    config.use_transactional_fixtures = true

    # If true, the base class of anonymous controllers will be inferred
    # automatically. This will be the default behavior in future versions of
    # rspec-rails.
    config.infer_base_class_for_anonymous_controllers = false

    # Run specs in random order to surface order dependencies. If you find an
    # order dependency and want to debug it, you can fix the order by providing
    # the seed, which is printed after each run.
    #     --seed 1234
    config.order = "random"
    # Include the Capybara DSL so that specs in spec/requests still work.
    config.include Capybara::DSL
    # Disable the old-style object.should syntax.
    config.expect_with :rspec do |c|
      c.syntax = :expect
    end
  end
end

Spork.each_run do
  # This code will be run each time you run your specs.

end

static_pages_spec.rb

require 'spec_helper'

describe "StaticPages" do
  describe "Home page" do
    it "should have the content 'Micro'" do
      visit '/static_pages/home'
      expect(page).to have_content('Micro')
    end
  end
end