每次调用返回新的 REST 响应的 Ruby Rspec class_double

我有一个RSpec测试，它需要将Request和HTTPI类/模块加倍，并返回一个模拟的REST响应.在此方法进行另一次REST调用并需要返回新的REST响应之前，我一直在使用该方法.

API Class
NOTE this is a trimmed down version of the class but the gist is there

class API
  include HTTPI
  
  def find_device(id)
    req = create_request('path')
    req.body = { :customerId => MultiJson.dump(customer_id) }
    return call(req)
  end
  
  def find_other_device(other_id)
    req = create_request('path')
    req.body = { :other_id => MultiJson.dump(other_id) }
    data = call(req)
    return data
  end
  
  def call(req)
    response = HTTPI.send(req)
    return response.body
  end
end

装置 文件调用REST方法

class Device
  @api = API.new(:open_timeout => 30, :read_timeout => 30)
  def get_device
    devices = @api.find_device(@id)
    log.info("First Call Made")
    other_call = @api.find_other_device(@other_id)
  end
end

等级库文件

Rspec.describe Device do
  resp = {code: 200, body: resp_body, raw_body: "TEST BODY", cookies: [cookie_list_hash]}
  resp2 = {code: 200, body: resp_body_2, raw_body: "TEST BODY 2", cookies: [cookie_list_hash]}
  let!(:request) {class_double('Request', new: http).as_stubbed_const} # I understand this causes the HTTPI send request to always return the same resp, but without it the test does not even get past the first call
  let!(:http) {class_double('HTTPI', send: resp).as_stubbed_const}

  it 'test' do
    Device.get_device
  end
end

我们希望创建一个双精度函数，首先返回resp var，然后在第二次调用:end时返回res2.

我也是Ruby的新手，所以这可能会很难看.