Rspec:如何存根私有方法？

Question

这是错误:

private method `desc' called for #<Array:0x0000010532e280>

规格:

describe SubjectsController do  
  before(:each) do
    @subject = mock_model(Subject)
  end

    describe "#0002 - GET #index" do
    before(:each) do        
      subjects = [@subject, mock_model(Subject), mock_model(Subject)]
      Subject.stub!(:all).and_return(subjects)
      Subject.all.stub!(:desc).and_return(subjects)
      get :index
    end

    it { response.should be_success }
    it { response.should render_template("index") }
  end
end

和控制器:

def index
  @subjects = Subject.all(conditions: {company_id: current_user.company.id}).desc(:created_at)
end

我不知道如何解决这个问题,有人可以帮个忙吗？你能否就如何测试这种方法给我建议？谢谢.

Answer 1

这比我喜欢的更多一点嘲笑和链接，但是，你可以这样做：

subjects = [...]
desc_mock = double("desc order mock")
desc_mock.should_receive(:desc).with(:created_at).and_return(subjects)

conditions = {...}
Subject.should_receive(:all).with(conditions).and_return(desc_mock)

您还可以通过将查询移动到带有一些参数的命名范围来大大简化这一过程。然后您的测试可以验证主题是否收到了具有正确参数的范围，例如：

Subject.should_receive(:user_company).with(current_user.id).and_return(subjects)