Rspec, Rails - unable to account for controller variable in testing -

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i new testing. don't seem able account variable in controller in rspec tests. how can account needed variable in tests , make these tests pass?

current test:

describe "post create action"     let(:trip)              { create(:trip)}     let(:trip_date)         { create(:trip_date) }     let(:buyer)             { create(:buyer) }     let(:company)           { create(:company) }     let(:order_item)        { attributes_for(:order_item, trip_date_id: trip_date.id, buyer_id: buyer.id, company_id: company.id) }     let(:bad_order_item)    { attributes_for(:bad_order_item, trip_date_id: trip_date.id, buyer_id: buyer.id, company_id: company.id) }      context "given valid order item attributes"         "creates new order item"             expect{ post :create, order_item: order_item, trip_id: trip.id }.to change(orderitem, :count).by(1)         end     end end

this error message:

orderitemscontroller post create valid attributes creates new order item failure/error: expect{ post :create, order_item: factorygirl.attributes_for(:order_item) }.to change(orderitem,:count).by(1) nomethoderror:        undefined method `company_id' nil:nilclass  # ./app/controllers/order_items_controller.rb:29:in `create'  # ./spec/controllers/order_items_controller_spec.rb:47:in `block (4 levels) in <top (required)>'

error references line 29 of order_items_controller.rb:

line 25:    def create line 26:        @trip = trip.friendly.find_by_id(params[:trip_id) line 27:        @order_item = orderitem.new(order_item_params) line 28:        @order_item.buyer_id            = current_user.id line 29:        @order_item.company_id          = @trip.company_id line 30:        @order_item.first_person_cost   = @trip.first_person_cost line 31:        @order_item.second_person_cost  = @trip.second_person_cost  line 32:        if @order_item.save line 33:            redirect_to cart_path(current_user), notice: 'new order item created.' line 34:        else line 35:            render 'new', notice: 'unable create new order item.' line 36:        end     line 37:    end

the callback affecting controller action confirms user signed in before action begins. if not, redirected sign in page.

i have tried: let(:trip) { create(:trip)} let(:trip_date) { create(:trip_date) } let(:buyer) { create(:buyer) } let(:company) { create(:company) } let(:order_item) { attributes_for(:order_item, trip_date_id: trip_date.id, buyer_id: buyer.id, company_id: company.id) } let(:bad_order_item) { attributes_for(:bad_order_item, trip_date_id: trip_date.id, buyer_id: buyer.id, company_id: company.id) }

describe "post create"     let(:trip)     {create(:trip) }     context "with valid attributes"         "creates new order item"           trip.stub_chain(:friendly, :find_by_id).and_return(trip)           expect{ post :create, order_item: order_item }.to change(orderitem,:count).by(1)           end       end     end end

resulting in error of:

1) orderitemscontroller post create action given valid order item attributes creates new order item     failure/error: let(:trip)               { create(:trip)}     double received unexpected message :where (no args)         # ./spec/controllers/order_items_controller_spec.rb:34:in `block (3 levels) in <top (required)>'

additionally, documentation on specific rpsec code can hard find. i'd appreciate being pointed in right direction toward docs rspec's 'post' method.

thanks in advance.

you can't assign variables in spec , them in controller!

there several ways how test it

1 controller finds record in db - create trip.friendly.find_by_id(params[:trip_id) return it

describe "post create"   let(:trip) { factorygirl.create(:trip) }    context "with valid attributes"     "creates new order item"       order_item = factorygirl.attributes_for(:order_item)       expect{ post :create, order_item: order_item, trip_id: trip.id }.to change(orderitem,:count).by(1)     end   end end

2 use stub (or stub_chain)

describe "post create"   let(:trip) { factorygirl.create(:trip) }   context "with valid attributes"     "creates new order item"       trip.stub_chain(:friendly, :find_by_id).and_return(trip)       order_item = factorygirl.attributes_for(:order_item)       expect{ post :create, order_item: order_item }.to change(orderitem,:count).by(1)     end   end end

ps me first variant better, because controller accept params[:trip_id] better pass it.


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