How we might spec out the global current_partner method

current_partner.rb

# This lives in config/initializers/current_partner.rb

# A global method to return the current partner
def current_partner
  Partner.current
end

current_partner_spec.rb

# This lives in spec/component/current_partner_spec.rb -- it's neither a model, controller, helper, nor presenter.
require 'component/component_spec_helper'

describe '#current_partner' do
  it "exists globally and returns the current Partner object" do
    expect(current_partner).to eq(Partner.current)
  end  
end