How to send only 1 parameter with get method?

Question

I have a controller with this index method (app/controllers/api/v1/users_controller.rb)

...
  before_action :find_user, only: [:show, :destroy]

  def index
    @users = User.order('created_at DESC')
  end
...

And I have a view (app/view/api/v1/users/index.json.jbuilder)

json.array! @users do |user|
  json.id user.id
  json.name user.name
  json.posts user.posts do |post|
    json.id post.id
    json.title post.title
    json.body post.body
  end
end

And when I run the server it works fine, after accessing localhost:3000/api/v1/users it is showing the expected output. But when I launch these RSpec tests (spec/controllers/api/v1/users_controller_spec.rb)

require 'rails_helper'

RSpec.describe Api::V1::UsersController, type: :controller do
  describe "GET #index" do
    before do
      get :index
    end
    it "returns http success" do
      expect(response).to have_http_status(:success)
    end
  end
end

I get an error If I remove :index from get :index it gives the same error but (given 0, expected 1). How come get :index sending 2 parameters if there is only one and how can I rewrite this code so the test will pass?

If I rewrite index method like this

  def index
    @users = User.order('created_at DESC')
    render json: @users, status: 200 
  end

The test will pass, but in this case I will not get the JSON file that I need (which I made with jbuilder)

Have you tried doing the GET by hand with curl so that you can get a better stack trace? The error (an ActionView::Template::Error) and the work-around (don't use the template) suggest that your problem is in the jbuilder template. — mu is too short

sameera207 sameera207 · Accepted Answer · 2020-01-07T06:50:38

You should move the get request under your it block

try

require 'rails_helper'

RSpec.describe Api::V1::UsersController, type: :controller do
  describe "GET #index" do
    it "returns http success" do
      get :index
      expect(response).to have_http_status(:success)
    end
  end
end

RSpec documentation

How to send only 1 parameter with get method?

2 Answers