我正在尝试在我的一个 Rails 控制器(在本例中为 Instagram.get_access_token)中模拟对外部 API 的方法调用,但遇到了一些麻烦。如所写,代码仍在调用真正的 Instagram.get_access_token 方法。我如何让控制器使用我的简单模拟?
session_controller.rb:
class SessionsController < ApplicationController
require 'instagram'
include ApplicationHelper
def auth_callback
response = Instagram.get_access_token(params[:code],
redirect_uri: auth_callback_url)
#<snipped extra code>
end
end
session_controller_spec.rb:
require 'spec_helper'
require 'ostruct'
describe SessionsController do
describe "GET #auth_callback" do
context "when there is an existing user" do
let(:response) { OpenStruct.new(access_token: "good_access_token") }
it "parses an access_token from the get response" do
Instagram.should_receive(:get_access_token).and_return(response)
#<snipped extra code>
end
end
end
end