A quick way of mocking an external web service you want to consume. Inspired by moco, mock-server and sinatra.

Integration, especially based on HTTP, e.g. web service, REST etc, is widlly used in most web development. When you write a feature that need to connect to an external web service You wonder how to test that. One option is to stub methods in Net::HTTP and equivalents, but by doing that you are tying yourself to an implementation detail. The ideal thing is to have a server running locally, Then serve different request for different response.

One thing I want to highlight is, rather than set up a global server which respond to all coming request, With mockery, you can set up different server for different testcase, spec or scenario.

• Standalone server, test the real interaction.
• Setup your mock server with sinatra's elegant DSL.

gem install mocking-server or add gem 'mocking-server' in your Gemfile

  # in rspec helper
  require 'mocking_server'
  RSpec.configure do |config|
    config.include MockingServer::Methods
  end

  # in spec
  describe ApiCilent do
    subject { ApiCilent.new }

    it "should return hello" do
      server = mock_server do
        get '/greeting' do
          status 200
          body 'hello'
        end
      end

      server.run do
        expect(subject.greeting).to eq('hello')
      end
    end
  end

  #in env.rb
  require 'mocking_server'
  World(MockingServer::Methods)


  # in steps
  server = mock_server do
    get '/greeting' do
      status 200
      body 'hello'
    end
  end

  server.run do
    # steps that send request to the local mock sever
  end

MIT.

• Niu Yameng
• Nicholas Ren