[*Rails*] RSpec + devise + Twitter認証 テストメモ ref: http://qiita.com/cigalecigales/items/a98be8416bf169ce5942

factories.rb

FactoryGirl.define do
    factory :user do
        email "rspec_test@test.com"
        uid "123"
        provider "twitter"
        username "anonymous"
        confirmed_at Time.now
    end
end

file3.txt

$ rails g rspec:install

file4.txt

$ rails g integration_test twitter_omniauth

file9.txt

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

Finished in 0.86037 seconds (files took 21.05 seconds to load)
1 example, 0 failures

Gemfile

source 'https://rubygems.org'


# Bundle edge Rails instead: gem 'rails', github: 'rails/rails'
gem 'rails', '4.2.0'

group :development, :test do
    # Use sqlite3 as the database for Active Record
    gem 'sqlite3'
    gem 'rspec-rails'
end

group :test do
    gem 'selenium-webdriver'
    gem 'capybara'
    gem 'factory_girl_rails'
end

# Use SCSS for stylesheets
gem 'sass-rails', '~> 5.0'
# Use Uglifier as compressor for JavaScript assets
gem 'uglifier', '>= 1.3.0'
# Use CoffeeScript for .coffee assets and views
gem 'coffee-rails', '~> 4.1.0'
# See https://github.com/sstephenson/execjs#readme for more supported runtimes
# gem 'therubyracer', platforms: :ruby

# Use jquery as the JavaScript library
gem 'jquery-rails'
# Turbolinks makes following links in your web application faster. Read more: https://github.com/rails/turbolinks
gem 'turbolinks'
# Build JSON APIs with ease. Read more: https://github.com/rails/jbuilder
gem 'jbuilder', '~> 2.0'
# bundle exec rake doc:rails generates the API under doc/api.
gem 'sdoc', '~> 0.4.0', group: :doc

# Use ActiveModel has_secure_password
# gem 'bcrypt', '~> 3.1.7'

# Use Unicorn as the app server
# gem 'unicorn'

# Use Capistrano for deployment
# gem 'capistrano-rails', group: :development

group :development, :test do
  # Call 'byebug' anywhere in the code to stop execution and get a debugger console
  gem 'byebug'

  # Access an IRB console on exception pages or by using <%= console %> in views
  gem 'web-console', '~> 2.0'

  # Spring speeds up development by keeping your application running in the background. Read more: https://github.com/rails/spring
  gem 'spring'
end

# Devise
gem 'devise', '3.4.1'
gem 'omniauth-twitter'

new.html.erb

<h2>Sign up</h2>

<%= form_for(resource, as: resource_name, url: registration_path(resource_name)) do |f| %>
    (省略)...
    <% if f.object.password_required? %>
        <div class="field">
            <%= f.label :password %>
            <% if @validatable %>
                <em>(<%= @minimum_password_length %> characters minimum)</em>
            <% end %><br />
            <%= f.password_field :password, autocomplete: "off" %>
        </div>

        <div class="field">
            <%= f.label :password_confirmation %><br />
            <%= f.password_field :password_confirmation, autocomplete: "off" %>
        </div>
    <% end %>
    (省略)...
<% end %>

<%= render "devise/shared/links" %>

spec_helper.rb

ENV['RAILS_ENV'] = 'test'
require File.expand_path('../../config/environment', __FILE__)
(省略)...
RSpec.configure do |config|
    (省略)...
    # Add Capybara DSL to rspec helper
    config.include Capybara::DSL
end

test.rb

Rails.application.configure do
  (省略)...
    # Devise host mail setting
    config.action_mailer.default_url_options = { host: 'localhost:3000' }
end

twitter_omniauths_spec.rb

require 'rails_helper'

describe "twitter login test" do
    before do
        OmniAuth.config.test_mode = true
        FactoryGirl.create(:user)
        OmniAuth.config.mock_auth[:twitter] = {
            "uid" => "123",
            "provider" => "twitter",
            "info" => { 
                "nickname" => "anonymous"
            }
        }
        visit user_omniauth_authorize_path(:twitter)
    end

    after do
        OmniAuth.config.test_mode = false
    end

    describe "after login" do
        before{ visit "/pages/show" }
        subject{ page }

        it{ should have_link('ログアウト') }
    end
end

user.rb

class User < ActiveRecord::Base
    (省略)...
    def password_required?
        super && provider.blank?
    end
end