RSpec：如何在静态方法上使用should_receive？

我在lib / gcm.rb中有一个模块：

require "net/http" require "uri" module GCM def self.dispatch_message(reg_ids, data) url = URI.parse(GCM_URL + "/send") @msg = { :registrationIds => reg_ids, :data => data } request = Net::HTTP::Post.new(url.path) request.content_type = 'application/json' request.body = @msg.to_json response = Net::HTTP.start(url.host, url.port) { |http| http.request(request) } end end 

我想测试在我的一个控制器中调用dispatch_message ：

 it "should dispatch a GCM message" do post :create, :post => @attr, :format => :json GCM.should_receive(:dispatch_message) end 

但它失败了：

 PostsController POST 'create' should dispatch a GCM message Failure/Error: GCM.should_receive(:dispatch_message) (GCM).dispatch_message(any args) expected: 1 time received: 0 times 

如果重要的话，我已经禁用了与WebMock的网络连接。

我在这里错过了什么？

Answer 1

您的期望必须在提出请求之前提出：

 it "should dispatch a GCM message" do GCM.should_receive(:dispatch_message) post :create, :post => @attr, :format => :json end