[RUBY] How to write an RSpec controller test


・ Devise is introduced ・ About the contents of the test written this time -If the user is logged in, it should be displayed correctly.


  class PostsController < ApplicationController
    before_action: authenticate_user!

    def index
      @posts = Post.all

About file creation / role

① Create requests and factories folders under spec

-Create spec/requests/posts_request.rb → File that describes the contents of the test

・ Spec/factories/user.rb ・ Create spec/factories/post.rb → File to create dummy data about user and post

(2) Create a support folder and factory_bot.rb file under spec so that FactoryBot can be used.


RSpec.configure do |config|
  config.include FactoryBot::Syntax::Method #For FactoryBot
  config.include Devise::Test::IntegrationHelper, type: :request #devise sign_in method becomes available

Then edit rails_helper.rb


require 'spec_helper'
require 'rspec/rails'
require 'support/factroy_bot'  #← This description allows you to use FactroyBot

Creating dummy data


FactoryBot.define do
  factory :user do 
    email { Faker::Internet.email }
    name { "testuser1" }
    password { "password" }
    password_confirmation { "password" }


FactroyBot.defind do
  factory :post do
    body { Faker::Lorem.charactors(number: 15) } #Create a 15-character dummy statement

Creating test code


require 'rails_helper'

RSpec.describe 'post_controller test', type: :request do
  let(:user) { create(:user) }
  let(:post) { create(:post) }
  describe 'If you are logged in' do
    before do
      sign_in user
      get posts_path

    it 'Requests to the post list page should be 200 ok' do
      expect(response.status).to eq 200

    it 'The page title is displayed correctly' do
      expect(response.body).to include('Post list')

  describe "If you are not logged in" do
    before do 
      get posts_path
   it 'The request will be 401' do
     expect(response.status).to eq 401
   it 'Title is not displayed' do
     expect(response.body).to_not include("Post list")

All you have to do is run RSpec!

$ rspec spec/requests


Since this is a beginner's article, I think there are ninety-nine mistakes. If anyone notices it, I would be very grateful if you could let me know! !

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