As summary of notes take from Michael Haretl’s excellent tutorial
http://www.railstutorial.org/book/_single-page#cha-modeling_users
Create User
> rails generate scaffold User name:string email:string password_digest:string remember_token:string admin:boolean
> rails generate controller Users new –no-test-framework
> rake db:migrate
> rake test:prepare
Setup Gemfile
source 'https://rubygems.org' gem 'rails', '4.0.0' gem 'sqlite3' gem 'sass-rails', '~> 4.0.0' gem 'uglifier', '>= 1.3.0' gem 'coffee-rails', '~> 4.0.0' gem 'jquery-rails' gem 'turbolinks' gem 'jbuilder', '~> 1.2' gem 'rspec-rails', '2.13.1' group :test do gem 'selenium-webdriver', '2.35.1' gem 'capybara', '2.1.0' end gem 'bcrypt-ruby', '~> 3.0.0'
> bundle install
Create test file
spec/models/user_spec.rb
require 'spec_helper' describe User do before do @user = User.new(name: "Example User", email: "user@example.com", password: "foobar", password_confirmation: "foobar") end subject { @user } it { should respond_to(:name) } it { should respond_to(:email) } it { should respond_to(:password_digest) } it { should respond_to(:password) } it { should respond_to(:password_confirmation) } it { should respond_to(:remember_token) } it { should respond_to(:authenticate) } it { should respond_to(:admin) } it { should be_valid } it { should_not be_admin } describe "with admin attribute set to 'true'" do before do @user.save! @user.toggle!(:admin) end it { should be_admin } end describe "when name is not present" do before { @user.name = " " } it { should_not be_valid } end describe "when email is not present" do before { @user.email = " " } it { should_not be_valid } end describe "when name is too long" do before { @user.name = "a" * 51 } it { should_not be_valid } end describe "when email format is invalid" do it "should be invalid" do addresses = %w[user@foo,com user_at_foo.org example.user@foo. foo@bar_baz.com foo@bar+baz.com foo@bar..com] addresses.each do |invalid_address| @user.email = invalid_address expect(@user).not_to be_valid end end end describe "when email format is valid" do it "should be valid" do addresses = %w[user@foo.COM A_US-ER@f.b.org frst.lst@foo.jp a+b@baz.cn] addresses.each do |valid_address| @user.email = valid_address expect(@user).to be_valid end end end describe "when email address is already taken" do before do user_with_same_email = @user.dup user_with_same_email.email = @user.email.upcase user_with_same_email.save end it { should_not be_valid } end describe "when password is not present" do before do @user = User.new(name: "Example User", email: "user@example.com", password: " ", password_confirmation: " ") end it { should_not be_valid } end describe "when password doesn't match confirmation" do before { @user.password_confirmation = "mismatch" } it { should_not be_valid } end describe "with a password that's too short" do before { @user.password = @user.password_confirmation = "a" * 5 } it { should be_invalid } end describe "return value of authenticate method" do before { @user.save } let(:found_user) { User.find_by(email: @user.email) } describe "with valid password" do it { should eq found_user.authenticate(@user.password) } end describe "with invalid password" do let(:user_for_invalid_password) { found_user.authenticate("invalid") } it { should_not eq user_for_invalid_password } specify { expect(user_for_invalid_password).to be_false } end end describe "remember token" do before { @user.save } its(:remember_token) { should_not be_blank } end end
Setup Model
app/models/user.rb
class User < ActiveRecord::Base before_save { self.email = email.downcase } before_create :create_remember_token validates :name, presence: true, length: { maximum: 50 } VALID_EMAIL_REGEX = /\A[\w+\-.]+@[a-z\d\-]+(\.[a-z]+)*\.[a-z]+\z/i validates :email, presence: true, format: { with: VALID_EMAIL_REGEX }, uniqueness: { case_sensitive: false } has_secure_password validates :password, length: { minimum: 6 } def User.new_remember_token SecureRandom.urlsafe_base64 end def User.hash(token) Digest::SHA1.hexdigest(token.to_s) end private def create_remember_token self.remember_token = User.hash(User.new_remember_token) end end
Deprecation warning
To get rid of [deprecated] I18n.enforce_available_locales will default to true in the future
config/application.rb
require File.expand_path('../boot', __FILE__) module SampleApp class Application < Rails::Application I18n.enforce_available_locales = true end end
To handle uniqueness
> rails generate migration add_index_to_users_email
db/migrate/[timestamp]_add_index_to_users_email.rb
class AddIndexToUsersEmail < ActiveRecord::Migration def change add_index :users, :email, unique: true end end
> rake db:migrate
> rake test:prepare
Configure capybara
spec/spec_helper.rb
# This file is copied to spec/ when you run 'rails generate rspec:install' RSpec.configure do |config| config.include Capybara::DSL end
Comment out a couple PUT/POST tests in users_controller_spec.rb as these pages don’t
contain password and password confirmation fields. Will test those separate using capybara.
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