extract GuestUser for unit specs

spec/lib/two_factor_authentication/models/two_factor_authenticatable_spec.rb

@@ -2,7 +2,7 @@ require 'spec_helper'
 include AuthenticatedModelHelper
 
 describe Devise::Models::TwoFactorAuthenticatable, '#otp_code' do
-  let(:instance) { AuthenticatedModelHelper.create_new_user }
+  let(:instance) { build_guest_user }
   subject { instance.otp_code(time) }
   let(:time) { 1392852456 }
 
@@ -32,7 +32,7 @@ describe Devise::Models::TwoFactorAuthenticatable, '#otp_code' do
 end
 
 describe Devise::Models::TwoFactorAuthenticatable, '#authenticate_otp' do
-  let(:instance) { AuthenticatedModelHelper.create_new_user }
+  let(:instance) { build_guest_user }
 
   before :each do
     instance.otp_secret_key = "2z6hxkdwi3uvrnpn"
@@ -54,22 +54,24 @@ describe Devise::Models::TwoFactorAuthenticatable, '#authenticate_otp' do
 end
 
 describe Devise::Models::TwoFactorAuthenticatable, '#send_two_factor_authentication_code' do
+  let(:instance) { build_guest_user }
 
   it "should raise an error by default" do
-    instance = AuthenticatedModelHelper.create_new_user
     expect {
       instance.send_two_factor_authentication_code
     }.to raise_error(NotImplementedError)
   end
 
   it "should be overrideable" do
-    instance = AuthenticatedModelHelper.create_new_user_with_overrides
+    def instance.send_two_factor_authentication_code
+      "Code sent"
+    end
     expect(instance.send_two_factor_authentication_code).to eq("Code sent")
   end
 end
 
 describe Devise::Models::TwoFactorAuthenticatable, '#provisioning_uri' do
-  let(:instance) { AuthenticatedModelHelper.create_new_user }
+  let(:instance) { build_guest_user }
 
   before do
     instance.email = "houdini@example.com"
@@ -99,7 +101,7 @@ describe Devise::Models::TwoFactorAuthenticatable, '#provisioning_uri' do
 end
 
 describe Devise::Models::TwoFactorAuthenticatable, '#populate_otp_column' do
-  let(:instance) { AuthenticatedModelHelper.create_new_user }
+  let(:instance) { build_guest_user }
 
   it "populates otp_column on create" do
     expect(instance.otp_secret_key).to be_nil
@@ -121,14 +123,14 @@ describe Devise::Models::TwoFactorAuthenticatable, '#populate_otp_column' do
 end
 
 describe Devise::Models::TwoFactorAuthenticatable, '#max_login_attempts' do
-  let(:instance) { AuthenticatedModelHelper.create_new_user }
+  let(:instance) { build_guest_user }
 
   before do
-    @original_max_login_attempts = User.max_login_attempts
+    @original_max_login_attempts = GuestUser.max_login_attempts
-    User.max_login_attempts = 3
+    GuestUser.max_login_attempts = 3
   end
 
-  after { User.max_login_attempts = @original_max_login_attempts }
+  after { GuestUser.max_login_attempts = @original_max_login_attempts }
 
   it "returns class setting" do
     expect(instance.max_login_attempts).to eq(3)

spec/rails_app/app/models/guest_user.rb

@@ -0,0 +1,10 @@
+class GuestUser
+  extend ActiveModel::Callbacks
+  include ActiveModel::Validations
+  include Devise::Models::TwoFactorAuthenticatable
+
+  define_model_callbacks :create
+  attr_accessor :otp_secret_key, :email, :second_factor_attempts_count
+
+  has_one_time_password
+end

spec/support/authenticated_model_helper.rb

@@ -1,28 +1,7 @@
 module AuthenticatedModelHelper
 
-  class POROUser
+  def build_guest_user
-    extend ActiveModel::Callbacks
+    GuestUser.new
-    include ActiveModel::Validations
-    include Devise::Models::TwoFactorAuthenticatable
-
-    define_model_callbacks :create
-    attr_accessor :otp_secret_key, :email, :second_factor_attempts_count
-
-    has_one_time_password
-  end
-
-  class UserWithOverrides < POROUser
-    def send_two_factor_authentication_code
-      "Code sent"
-    end
-  end
-
-  def create_new_user
-    POROUser.new
-  end
-
-  def create_new_user_with_overrides
-    UserWithOverrides.new
   end
 
   def create_user(attributes={})