Rails token authentication and testing it -

i'm trying pass token rails , validate it, getting strange "render" error. additionally, i'm not sure how pass "authentication: token token=" header through rspec controller test.

here's relevant code:

/app/controllers/api_base_controller.rb

# authentication method in i'm trying set @current_user class apibasecontroller < rocketpants::base      private          def authenticate_social  ## line 7 of error below             authenticate_or_request_with_http_token |token, options|               @current_customer = customer.where(token: token).first             end         end end 

/app/controllers/api/v1/customers_controller.rb

# simple method "expose" (rocketpants' way of respond_with) @current_customer above class api::v1::customerscontroller < apibasecontroller     before_action :authenticate_social    def fetch         expose @current_customer     end end 

/spec/controllers/api/v1/customers_controller_spec.rb

rspec.describe api::v1::customerscontroller, type: :controller   describe 'get #fetch'     context '[customer token exists]'       'returns customer object'         @customer = factorygirl.create(:facebook_customer)         :fetch, version: 1  ## line 81 of error below. not sure how pass token header         expect(response).to be_singular_resource       end     end   end end 

the rspec error

3) api::v1::customerscontroller #fetch [customer token exists] returns customer object      failure/error: :fetch, version: 1      nomethoderror:        undefined method `render' #<api::v1::customerscontroller:0x007f9b20c39430>      # ./app/controllers/api_base_controller.rb:7:in `authenticate_social'      # ./spec/controllers/api/v1/customers_controller_spec.rb:81:in `block (4 levels) in <top (required)>' 

i've searched high , low, still, nothing. thoughts?