Rspec and FactoryGirl: stack level too deep error - ruby-on-rails

Question

I'm new to rails and working on embedding associations into my models for my API. However adding the embeds has caused my specs to fire the following error:
Rails: 4.2.3 Ruby:2.2.1 Rspec: 3.3.2 FactoryGirl: 4.5.0
1) Api::V1::ProductsController GET #show returns the information about a reporter on a hash
Failure/Error: get :show, id: #product.id
SystemStackError:
stack level too deep
I think from looking at other answers on stack overflow that there is a problem with how I'm using my factories in my tests.
Here are the models:
product.rb
class User < ActiveRecord::Base
validates :auth_token, uniqueness: true
# Include default devise modules. Others available are:
# :confirmable, :lockable, :timeoutable and :omniauthable
devise :database_authenticatable, :registerable,
:recoverable, :rememberable, :trackable, :validatable
before_create :generate_authentication_token!
has_many :products, dependent: :destroy
def generate_authentication_token!
begin
self.auth_token = Devise.friendly_token
end while self.class.exists?(auth_token: auth_token)
end
end
user.rb
class Product < ActiveRecord::Base
validates :title, :user_id, presence: true
validates :price, numericality: { greater_than_or_equal_to: 0 },
presence: true
belongs_to :user
end
and the factories:
users.rb
FactoryGirl.define do
factory :user do
email { FFaker::Internet.email }
password "12345678"
password_confirmation "12345678"
end
end
products.rb
FactoryGirl.define do
factory :product do
title { FFaker::Product.product_name }
price { rand() * 100 }
published false
user
end
end
and here is the spec I'm getting all of the errors from.
products_controller_spec.rb
require 'spec_helper'
describe Api::V1::ProductsController do
describe "GET #show" do
before(:each) do
#product = FactoryGirl.create :product
get :show, id: #product.id
end
it "returns the information about a reporter on a hash" do
product_response = json_response[:product]
expect(product_response[:user][:email]).to eql #product.user.email
end
it "has the user as an embeded object" do
product_response = json_response[:product]
expect(product_response[:user][:email]).to eql #product.user.email
end
it { should respond_with 200 }
end
describe "GET #index" do
before(:each) do
4.times { FactoryGirl.create :product }
get :index
end
it "returns 4 records from the database" do
products_response = json_response
expect(products_response[:products]).to have(4).items
end
it "returns the user object into each product" do
products_response = json_response[:products]
products_response.each do |product_response|
expect(product_response[:user]).to be_present
end
end
it { should respond_with 200 }
end
describe "POST #create" do
context "when is succesfully created" do
before(:each) do
user = FactoryGirl.create :user
#product_attributes = FactoryGirl.attributes_for :product
api_authorization_header user.auth_token
post :create, { user_id: user.id, product: #product_attributes }
end
it "renders the json representation for the product record just created" do
product_response = json_response[:product]
expect(product_response[:title]).to eql #product_attributes[:title]
end
it { should respond_with 201 }
end
context "when is not created" do
before(:each) do
user = FactoryGirl.create :user
#invalid_product_attributes = { title: "Smart TV", price: "Twelve dolalrs" }
api_authorization_header user.auth_token
post :create, { user_id: user.id, product: #invalid_product_attributes }
end
it "renders an errors json" do
product_response = json_response
expect(product_response).to have_key(:errors)
end
it "renders the json errors on why the product could not be created" do
product_response = json_response
expect(product_response[:errors][:price]).to include "is not a number"
end
it { should respond_with 422 }
end
end
describe "PUT/PATCH #update" do
before(:each) do
#user = FactoryGirl.create :user
#product = FactoryGirl.create :product, user: #user
api_authorization_header #user.auth_token
end
context "when is successfully updated" do
before(:each) do
patch :update, { user_id: #user.id, id: #product.id,
product: { title: "An expensive TV"} }
end
it "renders the json representation for the updated user" do
product_response = json_response[:product]
expect(product_response[:title]).to eql "An expensive TV"
end
it { should respond_with 200 }
end
context "when is not updated" do
before(:each) do
patch :update, { user_id: #user.id, id: #product.id,
product: { price: "two hundred" } }
end
it "renders an errors json" do
product_response = json_response
expect(product_response).to have_key(:errors)
end
it "renders the json errors on why the user could not be created" do
product_response = json_response
expect(product_response[:errors][:price]).to include "is not a number"
end
it { should respond_with 422 }
end
end
describe "DELETE #destroy" do
before(:each) do
#user = FactoryGirl.create :user
#product = FactoryGirl.create :product, user: #user
api_authorization_header #user.auth_token
delete :destroy, { user_id: #user.id, id: #product.id }
end
it { should respond_with 204 }
end
end
And the Products Controller:
class Api::V1::ProductsController < ApplicationController
before_action :authenticate_with_token!, only: [:create, :update]
respond_to :json
def show
respond_with Product.find(params[:id])
end
def index
respond_with Product.all
end
def create
product = current_user.products.build(product_params)
if product.save
render json: product, status: 201, location: [:api, product]
else
render json: { errors: product.errors }, status: 422
end
end
def update
product = current_user.products.find(params[:id])
if product.update(product_params)
render json: product, status: 200, location: [:api, product]
else
render json: { errors: product.errors }, status: 422
end
end
def destroy
product = current_user.products.find(params[:id])
product.destroy
head 204
end
private
def product_params
params.require(:product).permit(:title, :price, :published)
end
end
user_serializer.rb
class UserSerializer < ActiveModel::Serializer
attributes :id, :email, :created_at, :updated_at, :auth_token
has_many :products
end
EDIT: Adds Products Controller