Question

I am trying to write an integration test where if a user clicks on a button, it creates a new record in the database (CheckPrice model).

I am running into the error nil is not a symbol when I try to run my test.

require 'spec_helper'

describe 'CheckPrice', type: :request, js: true  do
  it "should create a new CheckPrice record when user clicks Check Price on topic page" do
    city = create :city
    hotel = create :hotel
    affiliate_link = create :affiliate_link

    visit '/hotel-bilboa-hotel'
    sleep 2
    click_button "Check Prices"
    response.should change(CheckPrice.count).by(1)
  end
end

When “Check Prices” is clicked, there is an event listener that triggers the new method in the checkprices_controller.

The error seems to occur on the last line response.should change(CheckPrice.count).by(1). It looks like the method does not recognize the model CheckPrice. How do I reference the CheckPrice table?

Thanks.

Answer 1

I don’t think you can use the change matcher like this on the response object. Try this:

expect {
  click_button "Check Prices"
}.to change{ CheckPrice.count }.by(1)

This makes more semantic sense, too, IMO.

See this cheat sheet for more examples.