Guide for setting up TDD, BDD, or Unit testing in a rails app ... primarily for setting up tests with Rails App Template

RailsTestingSetupGuide

##Resources
https://semaphoreci.com/community/tutorials/setting-up-the-bdd-stack-on-a-new-rails-4-application
https://robots.thoughtbot.com/how-we-test-rails-applications
http://devblog.avdi.org/2012/08/31/configuring-database_cleaner-with-rails-rspec-capybara-and-selenium/

## Install Rails and the default gems
####Generate new rails app w/out default test and without default 'bundle'ing
rails new --skip-test-unit --skip-bundle myapp

####Manually install gems locally into per-project bundle
cd myapp
bundle install --path vendor/bundle

##Now Install RSpec
group :development, :test do
  gem 'rspec-rails'
end

####Install the rspec gem 
bundle

####Bootstrap the application with RSpec
bundle exec rails generate rspec:install

##Install Shoulda-matchers

##Install factory_girl

##Make sure everything is connected and working
bundle exec rails generate model Post title:string content:text
bundle exec rake db:migrate
####Define a Post factory:
```
# spec/factories/posts.rb
FactoryGirl.define do
  factory :post do
    title "My first post"
    content "Hello, behavior-driven development world!"
  end
end
```
```
####Update spec to validate Post's content & title
# spec/models/post_spec.rb
require 'rails_helper'

RSpec.describe Post, type: :model do
  it { is_expected.to validate_presence_of(:title) }
  it { is_expected.to validate_length_of(:title).is_at_least(5) }
  it { is_expected.to validate_presence_of(:content) }
  it { is_expected.to validate_length_of(:content).is_at_least(10) }
end
```

```
# app/models/post.rb
class Post < ActiveRecord::Base
  validates :title, presence: true, length: { minimum: 5 }
  validates :content, presence: true, length: { minimum: 10 }
end
```

####Run Post specs
bundle exec rspec spec/models/post_spec.rb