how testing associated objects?

please help solve the problem.

poll controller:

class PollsController < ApplicationController
  def index
    @user = User.find(params[:user_id])
    @polls = @user.polls.paginate(page: params[:page], :per_page =>
10).order(title: :DESC)
  end
end

route:

user_polls GET /users/:user_id/polls(.:format)
polls#index

polls_controller_spec.rb:
RSpec.describe PollsController, type: :controller do
  describe "GET #index" do
    before :all do
      @user = FactoryGirl.create(:user)
    end

    it "assign user as @user" do
      get :index, user_id: @user.id
      expect(assigns(:user)).to eq(@user)
    end

    it "assigns polls as @polls" do
      get :index, user_id: @user.id
      expect(assigns(:polls)).to eq([@poll])
    end

    it "redirects to the index view" do
      get :index, user_id: @user.id
      expect(response).to render_template("index")
    end
  end
end

after run tests, i get follow error message:

kalinin@kalinin ~/rails/phs $ rspec
spec/controllers/polls_controller_spec.rb
.F.
Failures:
  1) PollsController GET #index assigns polls as @polls
     Failure/Error: expect(assigns(:polls)).to eq([@poll])
       expected: [nil]
            got: #<ActiveRecord::AssociationRelation []>
       (compared using ==)
       Diff:
       @@ -1,2 +1,2 @@
       -[nil]
       +[]
     # ./spec/controllers/polls_controller_spec.rb:16:in `block (3
levels) in <top (required)>'

Finished in 1.23 seconds (files took 2.81 seconds to load)
3 examples, 1 failure
Failed examples:
rspec ./spec/controllers/polls_controller_spec.rb:14 # PollsController
GET #index assigns polls as @polls

as you can see problem in test 'assigns polls as @polls'. I do not
understand why array @polls is empty

please help solve the problem.

poll controller:

class PollsController < ApplicationController
def index
   @user = User.find(params[:user_id])
   @polls = @user.polls.paginate(page: params[:page], :per_page =>
10).order(title: :DESC)
end
end

route:

user_polls GET /users/:user_id/polls(.:format)
polls#index

polls_controller_spec.rb:
RSpec.describe PollsController, type: :controller do
describe "GET #index" do
   before :all do
     @user = FactoryGirl.create(:user)
   end

   it "assign user as @user" do
     get :index, user_id: @user.id
     expect(assigns(:user)).to eq(@user)
   end

   it "assigns polls as @polls" do
     get :index, user_id: @user.id
     expect(assigns(:polls)).to eq([@poll])
   end

   it "redirects to the index view" do
     get :index, user_id: @user.id
     expect(response).to render_template("index")
   end
end
end

after run tests, i get follow error message:

kalinin@kalinin ~/rails/phs $ rspec
spec/controllers/polls_controller_spec.rb
.F.
Failures:
1) PollsController GET #index assigns polls as @polls
    Failure/Error: expect(assigns(:polls)).to eq([@poll])
      expected: [nil]
           got: #<ActiveRecord::AssociationRelation []>
      (compared using ==)
      Diff:
      @@ -1,2 +1,2 @@
      -[nil]
      +[]
    # ./spec/controllers/polls_controller_spec.rb:16:in `block (3
levels) in <top (required)>'

Finished in 1.23 seconds (files took 2.81 seconds to load)
3 examples, 1 failure
Failed examples:
rspec ./spec/controllers/polls_controller_spec.rb:14 # PollsController
GET #index assigns polls as @polls

as you can see problem in test 'assigns polls as @polls'. I do not
understand why array @polls is empty

I think you need to add a factory for polls, and ensure that you assign a poll to that array before you test to see if there are any. Each test runs alone, and not in a predictable order unless you’ve disabled the test randomization feature in Rspec. Each test has a completely new and fresh look at the application, with no preconceived data to work with unless you provide it in your test, as you have done for the @user here.

Walter

Unless you accidentally removed it when posting here, you aren’t creating any Poll records. @poll is also not set to anything…

–Matt Jones

Being from India, this a question to Ruby on rails experts in India... i
have some doubts regarding risk based testing? how to perform it?