require 'spec_helper' describe API::Helpers::Version do describe '.new' do it 'is possible to initialize it with existing API version' do expect(described_class.new('v4').to_s).to eq 'v4' end it 'raises an error when unsupported API version is provided' do expect { described_class.new('v111') }.to raise_error ArgumentError end end describe '#root_path' do it 'returns a root path of the API version' do expect(described_class.new('v4').root_path).to eq '/api/v4' end end describe '#root_url' do it 'returns an URL for a root path for the API version' do expect(described_class.new('v4').root_url) .to eq 'http://localhost/api/v4' end end end