Sign up feature with cucumber and rspec

gistfile1.feature

Feature: Sign up
	In order to use the provided service
	As a Guest
	I want to sign up for an user account

gistfile10.rb

require 'spec_helper'

describe User do

  before :each do
    @user = Factory.create(:user)
  end

  it "should be invalid without an email address" do
    @user.email = nil
    @user.should_not be_valid
  end
  
  it "should have an unique email address" do
    new_user = Factory.build(:user)
    new_user.email = @user.email
    new_user.should_not be_valid
  end
  
  it "should be invalid with an invalid email address" do
    invalid_email_addresses.each do |invalid_email|
      @user.email = invalid_email
      @user.should_not be_valid
    end
  end
  
  it "should be valid with an valid email address" do
    valid_email_addresses.each do |valid_email|
      @user.email = valid_email
      @user.should be_valid
    end
  end
  
  # generate array of valid email addresses
  def invalid_email_addresses
    ["mail@example", "mail", "@example.com", "mailexample.com", "m ail@example.com", "mail@ex ample.com", "mail@example.a23"]
  end
  
  def valid_email_addresses
    ["Mail@example.de", "mail@example.com", "ma_il@example.com", "ma.il@examle.com"]
  end

  
  # [..]

end # describe User

gistfile2.rb

class User
	include Mongoid::Document

  # [..]

  field :email,         :type => String
  
  validates :email,     :presence => true,
                        :uniqueness => true,
                        :length => {:minimum => 6},
                        :format => {:with => /\A([^@\s]+)@((?:[-a-z0-9]+\.)+[a-z]{2,})\Z/i}
  
  # [..]
  
end

gistfile3.rb

describe "POST 'create'" do
  
  before :each do
    @user = mock_model(User, :save => true)
    User.stub!(:new).and_return @user
  end
  
  def do_post
    post :create, :user => post_parameter
  end
  
  def post_parameter
    ['key' => 'value']
  end
  
  it "should create a user object from the given parameter" do
    User.should_receive(:new).with post_parameter
    do_post
  end
  
end # POST 'create'

gistfile4.rb

describe "POST 'create'", "with valid user data" do
  
  before :each do
    @user = mock_model(User, :save => true)
    User.stub!(:new).and_return @user
  end
  
  it "should save the new user object" do
    @user.should_receive(:save).and_return true
    post :create
  end
  
  it "should redirect to homepage" do
    post :create
    response.should redirect_to(root_path)
  end
  
  it "should assign a flash success message" do
    post :create
    flash[:success].should_not be_blank
  end
  
end # POST 'create' with valid user data

gistfile5.txt

In order to <benefit>
As a <role>
I want <something>

gistfile6.rb

  describe "POST 'create'", "with invalid user data" do
    
    before :each do
      @user = mock_model(User, :save => false)
      User.stub!(:new).and_return @user
    end
    
    it "should not save the new user object" do
      @user.should_receive(:save).and_return false
      post :create
    end
    
    it "should redirect to signup page" do
      post :create
      response.should render_template :signup
    end
    
    it "should assign a flash error message" do
      post :create
      flash[:error].should_not be_blank
    end
    
  end # POST 'create' with invalid user data

gistfile7.rb

class UsersController < ApplicationController
  
  # [..]
  
  # POST /users
  def create
    @user = User.new(params[:user])

    if @user.save
      flash[:success] = 'Sign up was successful'
      redirect_to(root_path)
    else
      render :action => "signup"
    end

  end
  
end

gistfile8.feature

Background:
	Given I am on the sign up page

Scenario: Sign up with valid data
	When I fill in the following:
		| Name                  | John Doe            |
		| Username              | johndoe             |
		| Email                 | johndoe@example.com |
		| Password              | secret              |
		| Password confirmation | secret              |
	And I press "Sign up"
	Then I should see a confirmation message

gistfile9.feature

Scenario: Sign up with invalid data
	When I fill in the following:
		| Name                  | John Doe            	|
		| Username              | johndoe             	|
		| Email                 | invalid-email-address |
		| Password              | secret              	|
		| Password confirmation | secret              	|
	And I press "Sign up"
	Then I should see an error message