从功能规范中发现难以模拟 request.referrer

Question

From my rspec FEATURE test I want to set request.referrer to '/pagea'.

Following is my test:

controller.request.should_receive(:referrer).and_return('/pagea')
visit '/pageb'

expect(page).to have_content 'xyz'

This is the error I face:

undefined local variable or method `controller' for #<RSpec::ExampleGroups

Then when I change the line to

AbcController.request.should_receive(:referrer).and_return('/pagea')

I get the following error:

undefined local variable or method `request' for #<RSpec::ExampleGroups

The source code is as follows:

class AbcController < ApplicationController
  def index
     set_defaults
  end

  def set_defaults
   if request.referrer.present?
     check_user
   end
  end

  def check_user
    if request.referrer.include? "/pagea"
      @field = true
    end
  end

end

Could you help me figure out how to mock the request.referrer.

Answer 1

我认为你可以这样做

allow_any_instance_of(ActionDispatch::Request).to receive(:referrer).and_return('/pagea')