Rails url helpers not working in Rspec - ruby-on-rails

Question

I am new to programming, this is my first application.
While creating an application in Rails, i have two models. User&list,nested.
resources :users do
resources :lists
end
These are the following routes i obtain with this setting:
user_lists GET /users/:user_id/lists(.:format) lists#index
POST /users/:user_id/lists(.:format) lists#create
new_user_list GET /users/:user_id/lists/new(.:format) lists#new
edit_user_list GET /users/:user_id/lists/:id/edit(.:format)lists#edit
user_list GET /users/:user_id/lists/:id(.:format) lists#show
PUT /users/:user_id/lists/:id(.:format) lists#update
DELETE /users/:user_id/lists/:id(.:format) lists#destroy
With regards i have created the views with the following links.
<div class="stats">
<a href="<%= user_lists_path(current_user) %>">
<%= pluralize(current_user.lists.count, 'List') %>
</a>
</div>
<div class="list">
<%= link_to 'Create List', new_user_list_path(current_user) %>
</div>
These work as expected, however when i use the same url helpers in testing i get an error.
describe "List create page" do
let(:user) { FactoryGirl.create(:user) }
before do
user.save
visit new_user_list_path(user)
end
it { should have_selector('title', text: 'SocialTask | List') }
it { should have_selector('h1', text: 'Create list') }
describe "invalid list creation" do
before { click_button 'Create list' }
it { should have_content('Error in creating list') }
end
end
This causes the tests to have an error.
Failure/Error: visit new_user_list_path(user)
NoMethodError:
undefined method `lists' for nil:NilClass
I have tried playing around with the url that did not work.
I tried updating rspec/capybara that did not work either.
I have also checked the inclusion of
config.include Rails.application.routes.url_helpers
in the spec helper.
How do i get the helpers to work? Or am i missing some minor detail?
Thanks in advance.
Helper Methods.
module SessionsHelper
def sign_in(user)
cookies.permanent[:remember_token] = user.remember_token
self.current_user = user
end
def current_user=(user)
#current_user = user
end
def current_user
#current_user ||= User.find_by_remember_token(cookies[:remember_token])
end
def signed_in?
!current_user.nil?
end
def sign_out
self.current_user = nil
cookies.delete(:remember_token)
end
def current_user?(user)
current_user == user
end
end
The rspec helper to sign in.
support/utilities.rb
include ApplicationHelper
def sign_in(user)
visit signin_path
fill_in "Email", with: user.email
fill_in "Password", with: user.password
click_button "Sign in"
cookies[:remember_token] = user.remember_token
end

Answer 1

Without seeing the stack trace, I think your problem is in the view on this line:
<%= pluralize(current_user.lists.count, 'List') %>
It seems like current_user is nil. Normally you should define some kind of helper method in your RSpec suite to simulate a user logging in. That way, current_user will return the user that you stub out in the test.
Here's an example:
# spec/support/session_helper.rb
module SessionHelper
def login(username = 'admin')
request.session[:user_id] = User.find_by_username(username).id
end
end
Yours will differ depending on how you authenticate your users. For example, Devise publishes its own set of test helpers, so you can simply include its helpers directly:
# spec/support/devise.rb
RSpec.configure do |config|
config.include Devise::TestHelpers, :type => :controller
end

Answer 2

Seems it's getting an error because the user doesn't exists. Try to change user.save to user.save! then you'll catch the error on creation I think..