ruby on rails tutorial chapter 8 test error - ruby-on-rails

Question

I'm getting two different test errors in Chapter 8.2.1 of Michael Hartl's Ruby on Rails Tutorial. I'm new to Rails, but I have triple checked for syntax errors and anything else I could find. Any help is very much appreciated.
Error Message 1:
ERROR["test_should_get_new", Minitest::Result, 0.9693643249993329]
test_should_get_new#Minitest::Result (0.97s)
NameError: NameError: undefined local variable or method users_new_url' for #<UsersControllerTest:0x00000006e953f8>
test/controllers/users_controller_test.rb:5:inblock in '
Error Message 2:
ERROR["test_invalid_signup_information", Minitest::Result, 0.8977870759990765]
test_invalid_signup_information#Minitest::Result (0.90s)
ActionController::RoutingError: ActionController::RoutingError: No route matches [POST] "/signup"
test/integration/users_signup_test.rb:8:in block (2 levels) in <class:UsersSignupTest>'
test/integration/users_signup_test.rb:7:inblock in '
Routes.rb
Rails.application.routes.draw do
root 'static_pages#home'
get '/help', to: 'static_pages#help'
get '/about', to: 'static_pages#about'
get '/contact', to: 'static_pages#contact'
get '/signup', to: 'users#new'
get '/login', to: 'sessions#new'
post '/login', to: 'sessions#create'
delete '/logout', to: 'sessions#destroy'
resources :users
end
Sessions Controller:
class SessionsController < ApplicationController
def new
end
def create
user = User.find_by(email: params[:session][:email].downcase)
if user && user.authenticate(params[:session][:password])
# Log the user in and redirect to the user's show page.
else
flash.now[:danger] = 'Invalid email/password combination'
render 'new'
end
end
def destroy
end
end
Users Controller:
class UsersController < ApplicationController
def show
#user = User.find(params[:id])
end
def new
#user = User.new
end
def create
#user = User.new(user_params)
if #user.save
flash[:success] = "Welcome to your new profile!"
redirect_to #user
else
render 'new'
end
end
private
def user_params
params.require(:user).permit(:name, :email, :password,
:password_confirmation)
end
end
Users controller test
require 'test_helper'
class UsersControllerTest < ActionDispatch::IntegrationTest
test "should get new" do
get users_new_url
assert_response :success
end
end
Users Signup Test
require 'test_helper'
class UsersSignupTest < ActionDispatch::IntegrationTest
test "invalid signup information" do
get signup_path
assert_no_difference 'User.count' do
post users_path, params: { user: { name: "",
email: "user#invalid",
password: "foo",
password_confirmation: "bar" } }
end
assert_template 'users/new'
assert_select 'div#error_explanation'
assert_select 'div.field_with_errors'
assert_select 'form[action="/signup"]'
end
test "valid signup information" do
get signup_path
assert_difference 'User.count', 1 do
post users_path, params: { user: { name: "Example User",
email: "user#example.com",
password: "password",
password_confirmation: "password" } }
end
follow_redirect!
assert_template 'users/show'
assert_not flash.nil?
end
end

Answer 1

In your users_controller_test, the code doesn't know what users_new_url is. This is probably because that route doesn't exist. You will most likely have to do something like get new_user_path, but you can find out by typing rake routes and getting the list of your available routes.
Here's an example of what rake routes will output:
users GET /users(.:format) users#index
POST /users(.:format) users#create
new_user GET /users/new(.:format) users#new
edit_user GET /users/:id/edit(.:format) users#edit
user GET /users/:id(.:format) users#show
You can reference a named path by appending _path to the name. i.e. users_path will map to the "users#index"controller and method.
rake routes will also help for your second problem, which is that you do not have a route defined for POST /signup -- you have a GET /signup.
So, you'll need to add a line like:
post '/signup', to: 'users#create'
This route will map to your UsersController's #create method, which I see you have in your code.