Question

I have a sinatra app that uses neo4j as a graph db. the app accesses the db through neography as a REST client.

I want to mock this client for testing purposes, using rspec. what s the best practice to achieve this?

Answer 1

您在此有几种选择:

1: 跟踪这一联系:http://net.tuts.com/tutorials/ruby/even-an-api-wrapper-in-ruby-with-td/

It explains step by step how to do it using webmock and the vcr gem. The idea is you run your tests against a live database the first time, vcr records them, and afterwards your tests will run off the recorded answers.

Two: You can run your tests against a fresh db in a CI virtual machine environment. Take a look at the travis.yml file for Neography:

文字:“bundle exec rake Emerg4j:install Emerg4j:start spectrace”

and the results: http://travis-ci.org/#!/maxdemarzi/neography

三个方面:你可以在比你的dev夫或假肢不同的港口数目上进行 test检,在座标上看上去。

It s a good question, so I ll do a post on it on my blog one of these days at http://maxdemarzi.com

Answer 2

我的创始回答:

sinatra app:

require  sinatra 

module Backend
  class Neography
    # stuff
  end
end

helpers Backend

before do
    @neo = Backend::Neography.new
end

get  /:id  do
  "#{@neo.get_node(params[:id])}"
end

光谱:

describe  The App  do
  include Rack::Test::Methods

  def app
    Sinatra::Application
  end

  def mock_neography
    @neo_mock = mock("Backend::Neography")
    @neo_mock.stub!("get_node") {"something else"}
    Backend::Neography.stub(:new).with(any_args()).and_return(@neo_mock)
  end

  it "gets a node" do
    mock_neography
    get  /5 
    last_response.should be_ok
  end
end

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