Rspec send_data test not passing

Question

I can't seem to get this test to pass and I don't understand why.

controller_spec.rb:

require 'rails_helper'

RSpec.describe QuotationRequestsController, type: :controller do

  describe "GET download" do    
    it "streams the sample text as a text file" do
      #setup
      quotation_request = create(:quotation_request)
      file_options = {filename: "#{quotation_request.id}-#{quotation_request.client.name.parameterize}.txt", type: 'plain/text', disposition: 'attachment'}

      #exercise
      get :download, id: quotation_request

      #verification
      expect(@controller).to receive(:send_data).with(file_options) {@controller.render nothing: true}      
    end
  end
end

controller:

def download
  @quotation_request = QuotationRequest.find(params[:id])
  send_data @quotation_request.sample_text, {
    filename: @quotation_request.sample_text_file, 
    type: "text/plain",
    disposition: "attachment"
  }
end

Output of test:

1) QuotationRequestsController GET download streams the sample text as a text file
  Failure/Error: expect(@controller).to receive(:send_data).with(file_options) {
    @controller.render nothing: true
  }       
  (# <QuotationRequestsController:0x007ff35f926058>).send_data({
    :filename=>"1-peter-johnson.txt",
    :type=>"plain/text",
    :disposition=>"attachment"
  })  
  expected: 1 time with arguments: ({
    :filename=>"1-peter-johnson.txt",
    :type=>"plain/text", :disposition=>"attachment"
  })
  received: 0 times
  # ./spec/controllers/quotation_requests_controller_spec.rb:380:in `block (3 levels) in <top (required)>'
  # -e:1:in `<main>'

Answer 1

You should pass 2 arguments expect(@controller).to receive(:send_data).with(quotation_request.sample_text, file_options) {@controller.render nothing: true}