# encoding: utf-8 require 'spec_helper' describe RuboCop::Cop::Style::ModuleFunction do subject(:cop) { described_class.new } it 'registers an offense for extend self in module' do inspect_source(cop, ['module Test', ' extend self', ' def test; end', 'end']) expect(cop.offenses.size).to eq(1) end it 'accepts extend self in class' do inspect_source(cop, ['class Test', ' extend self', 'end']) expect(cop.offenses).to be_empty end end