require 'spec_helper'

module Grape
  module DSL
    module MiddlewareSpec
      class Dummy
        include Grape::DSL::Middleware

        def self.settings
          @settings ||= Grape::Util::HashStack.new
        end

        def self.imbue(key, value)
          settings.imbue(key, value)
        end
      end
    end
    describe Middleware do
      subject { Class.new(MiddlewareSpec::Dummy) }
      let(:proc) { ->() {} }

      describe '.use' do
        it 'adds a middleware' do
          expect(subject).to receive(:imbue).with(:middleware, [[:my_middleware, :arg1, proc]])

          subject.use :my_middleware, :arg1, &proc
        end

      end

      describe '.middleware' do
        it 'returns the middleware stack' do
          subject.use :my_middleware, :arg1, &proc

          expect(subject.middleware).to eq [[:my_middleware, :arg1, proc]]
        end
      end
    end
  end
end