*** RuntimeError Exception: ActionView::Helpers::ControllerHelper#response delegated to controller.response, but controller is nil

问题

I'm running into an issue when I try to run my api specs for an endpoint. When I run the spec and check the response it says:

*** RuntimeError Exception: ActionView::Helpers::ControllerHelper#response delegated to controller.response, but controller is nil: #<RSpec::Core::ExampleGroup::Nested_1::Nested_1::Nested_1:0x007faeb4852b08

I have a controller under controllers/api/v1/catalog_controller.rb

class Api::V1::CatalogController < ApplicationController
  def search
    ...some stuff here...
    render json: {some_response}
  end
end

The matching spec for it is under spec/controllers/api/v1/catalog_controller_spec.rb

describe Api::V1::CatalogController do
  describe "searching" do
    before(:all) do
      @title = FactoryGirl.create(:title, {name: "Test Title"})
      @author = FactoryGirl.create(:author, last_name: "Smith")
      @edition = FactoryGirl.create(:edition, title: @title, writer_id: @author.id)
    end
    context "#search" do
      it "should return the given titles for a single word search" do
        get :search, {search_terms: {term: 'smith'}}
        expect(response).status.to eql(200)
        return_value.body.should == {titles: [@title]}
      end
    end
  end
end

Any idea what I could be doing wrong?

回答1:

I've resolved the issue by removing the line

 config.include ActionView::Helpers

from my spec_helper.rb config block. I guess it was conflicting. I'm not terribly sure why so any further insight would be awesome.

来源：https://stackoverflow.com/questions/22875355/runtimeerror-exception-actionviewhelperscontrollerhelperresponse-deleg