describe RenderPartialService do let(:service) { RenderPartialService.new(controller, method) } let(:controller) { ApplicationController } let(:method) { :index } describe 'navbar' do subject { service.navbar } it { is_expected.to eq "layouts/navbars/navbar_#{controller.to_s.parameterize}_#{method}" } end describe 'left_panel' do subject { service.left_panel } it { is_expected.to eq "layouts/left_panels/left_panel_#{controller.to_s.parameterize}_#{method}" } end end