ruby on rails - How to visit page with login user, rspec -

i'm beginer in ruby on rail , i'm trying use rspec check controller. have trouble visit page in spec. here user_spec.rb:

#!/bin/env ruby # encoding: utf-8 require 'user' require 'rails_helper'  describe user   "login sucess"     visit "welcome/index"     fill_in "session_user_id", :with => "1992111-1234"     fill_in "session_password", :with => "sa1234"     click_button "ログイン"      end    "main menu"     visit "welcome/mainmenu"   end end 

when run spec, have error:

i can't pass through shop_no because dont have current_user: <%= current_user.shop_no%>. so, must login user first, don't know how work rspec. tried creat login(user) in spec/user.rb:

#!/bin/env ruby # encoding: utf-8 require "rails_helper"    def login(user)     visit root_path     fill_in "session_user_id", :with => "1992111-1234"     fill_in "session_password", :with => "sa1234"     click_button "ログイン"   end 

but don't know how work that. so, please me !

update login page:

<div class="medium-4 medium-centered row" style="padding: 5px">     <div class="medium-10 medium-centered columns">         <% if flash[:notice] %>         <div class="notice">             <%= flash[:notice] %>         </div>         <% end %>         <%= form_for(:session, url: login_path) |f| %>         <%= f.label(:user_id, 'user id') %>         <%= f.text_field :user_id %>         <%= f.label :password %>         <%= f.password_field :password %>         <center>             <%= f.submit "ログイン", class: "button [tiny large]", :style => "border-radius: 0px 0px" %>         </center>         <% end %>     </div> </div> 

there better ways should work. logs user in every test. might have add code log out user before next test.

change it "login success" do line:

describe user   before :each   # <===== line     visit "welcome/index"     fill_in "user_id", :with => "1992111-1234"  # <=== updated     fill_in "password", :with => "sa1234"       # <=== updated     click_button "ログイン"   end   ... end