require 'spec_helper' describe String do describe '#permalink!' do let(:string) { 'foo bar' } before { string.permalink! } it { expect(string).to eq 'foo-bar' } end describe '#to_bool' do subject { string.to_bool } describe 'true values' do %w(true t yes y 1).each do |val| let(:string) { val } it { is_expected.to eq true } end end describe 'false values' do (%w(false f no n 0) + ['']).each do |val| let(:string) { val } it { is_expected.to eq false } end end describe 'no truthy or falsy' do let(:string) { 'foo' } it { expect { subject }.to raise_error(%(invalid value for Boolean: "foo")) } end end end