# frozen_string_literal: true

describe Grape::Middleware::Versioner do

subject { described_class.using(strategy) }

context 'when :path' do

let(:strategy) { :path }

it { is_expected.to eq(Grape::Middleware::Versioner::Path) }

end

context 'when :header' do

let(:strategy) { :header }

it { is_expected.to eq(Grape::Middleware::Versioner::Header) }

end

context 'when :param' do

let(:strategy) { :param }

it { is_expected.to eq(Grape::Middleware::Versioner::Param) }

end

context 'when :accept_version_header' do

let(:strategy) { :accept_version_header }

it { is_expected.to eq(Grape::Middleware::Versioner::AcceptVersionHeader) }

end

context 'when unknown' do

let(:strategy) { :unknown }

it 'raises an error' do

expect { subject }.to raise_error Grape::Exceptions::InvalidVersionerOption, Grape::Exceptions::InvalidVersionerOption.new(strategy).message

end

end

end