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Cookies

There are different ways to make assertions on cookies from controller specs, but we recommend using the cookies method as set out below.

You can use strings or symbols to fetch or set your cookies because the cookies method supports indifferent access.

Testing cookie's value cleared in controller​

Given a file named "spec/controllers/application_controller_spec.rb" with:

require "rails_helper"

RSpec.describe ApplicationController, type: :controller do
  controller do
    def clear_cookie
      cookies.delete(:user_name)
      head :ok
    end
  end

  before do
    routes.draw { get "clear_cookie" => "anonymous#clear_cookie" }
  end

  it "clear cookie's value 'user_name'" do
    cookies[:user_name] = "Sam"

    get :clear_cookie

    expect(cookies[:user_name]).to eq nil
  end
end

When I run rspec spec

Then the example should pass.