require 'spec_helper'

describe Doorkeeper::Server do
  let(:fake_class) { double :fake_class }

  subject do
    described_class.new
  end

  describe '.authorization_request' do
    it 'raises error when strategy does not exist' do
      expect do
        subject.authorization_request(:duh)
      end.to raise_error(Doorkeeper::Errors::InvalidAuthorizationStrategy)
    end

    it 'raises error when strategy does not match phase' do
      expect do
        subject.token_request(:code)
      end.to raise_error(Doorkeeper::Errors::InvalidTokenStrategy)
    end

    context 'when only Authorization Code strategy is enabled' do
      before do
        allow(Doorkeeper.configuration)
          .to receive(:grant_flows)
          .and_return(['authorization_code'])
      end

      it 'raises error when using the disabled Implicit strategy' do
        expect do
          subject.authorization_request(:token)
        end.to raise_error(Doorkeeper::Errors::InvalidAuthorizationStrategy)
      end

      it 'raises error when using the disabled Client Credentials strategy' do
        expect do
          subject.token_request(:client_credentials)
        end.to raise_error(Doorkeeper::Errors::InvalidTokenStrategy)
      end
    end

    it 'builds the request with selected strategy' do
      stub_const 'Doorkeeper::Request::Code', fake_class
      expect(fake_class).to receive(:new).with(subject)
      subject.authorization_request :code
    end

    it 'builds the request with composite strategy name' do
      allow(Doorkeeper.configuration)
        .to receive(:authorization_response_types)
        .and_return(['id_token token'])

      stub_const 'Doorkeeper::Request::IdTokenToken', fake_class
      expect(fake_class).to receive(:new).with(subject)
      subject.authorization_request 'id_token token'
    end
  end
end