class PostsController < ApplicationController
  def show
    @post = Post.find(params[:id])
  end
end

json.id @post.id
json.title @post.id
json.description @post.id
json.created_at @post.created_at
json.updated_at @post.updated_at

{
	"id": 1,
	"title": "Rails test jbuilder json response with rspec",
	"description": "Testing jbuilder response in rspec integration tests requires an extra helper method to be included in test. Requests in integration tests do not render json response unless we include render_views helper.",
	"created_at": "Thu, 11 Apr 2019 08:19:18 UTC +05:30",
	"updated_at": "Thu, 11 Apr 2019 08:19:18 UTC +05:30"
}

# frozen_string_literal: true

require 'rails_helper'
RSpec.describe PostsController, type: :controller do
  context 'show' do
    it 'should have required keys in the response json' do
      # Let's say we have fixtures, to have post given below
      post = posts(:jbuilder_test)
      get :show, params: { id: post.id }, format: :json
    end
  end
end

$ response.body
# ""

# frozen_string_literal: true

require 'rails_helper'
RSpec.describe PostsController, type: :controller do
  render_views
  context 'show' do
    it 'should have required keys in the response json' do
      # Let's say we have fixtures, to have post given below
      post = posts(:jbuilder_test)
      get :show, params: { id: post.id }, format: :json
    end
  end
end