added machinist and a spec for person to verify that uniqueness of account is guaranteed

Gemfile

@@ -18,6 +18,7 @@ gem 'jquery-rails'
 group :development, :test do
   gem 'sqlite3'
   gem 'rspec-rails'
+  gem 'machinist'
 end
 
 group :production do

Gemfile.lock

@@ -59,6 +59,7 @@ GEM
       railties (>= 3.1.0, < 5.0)
       thor (~> 0.14)
     json (1.7.5)
+    machinist (2.0)
     mail (2.4.4)
       i18n (>= 0.4.0)
       mime-types (~> 1.16)
@@ -146,6 +147,7 @@ DEPENDENCIES
   coffee-rails (~> 3.2.1)
   faker
   jquery-rails
+  machinist
   paperclip
   pg
   rails (= 3.2.8)

spec/models/person_spec.rb

@@ -0,0 +1,15 @@
+require 'spec_helper'
+
+describe Person do
+  it 'should not generate valid user with non unique account' do
+    person1 = Person.make! account: 'the_one'
+    person2 = Person.make account: 'the_one'
+    person2.should_not be_valid
+  end
+
+  describe '#create_for_email' do
+    it 'should generate a valid person' do
+      Person.create_for_email('user@email.com').should be_valid
+    end
+  end
+end

spec/support/blueprints.rb

@@ -0,0 +1,10 @@
+require 'machinist/active_record'
+require 'uuid_generator'
+
+include UuidGenerator
+
+Person.blueprint do
+  full_name { 'Jane Smith' }
+  account { uuid }
+  auth_token { uuid }
+end