一个单元如何用Express测试路线？ [英] How does one unit test routes with Express?

问题描述

我正在学习Node.js，并且一直在玩 Express 。非常喜欢框架，但是我无法找出如何为路线编写单元/集成测试。

I'm in the process of learning Node.js and have been playing around with Express. Really like the framework;however, I'm having trouble figuring out how to write a unit/integration test for a route.

能够单独测试简单模块很容易并已通过摩卡进行操作然而，我的单元测试Express失败，因为我传入的响应对象不保留值。

Being able to unit test simple modules is easy and have been doing it with Mocha; however, my unit tests with Express fail since the response object I'm passing in doesn't retain the values.

正在测试的Route-Function（routes / index.js）：

exports.index = function(req, res){
  res.render('index', { title: 'Express' })
};

单元测试模块：

var should = require("should")
    , routes = require("../routes");

var request = {};
var response = {
    viewName: ""
    , data : {}
    , render: function(view, viewData) {
        viewName = view;
        data = viewData;
    }
};

describe("Routing", function(){
    describe("Default Route", function(){
        it("should provide the a title and the index view name", function(){
        routes.index(request, response);
        response.viewName.should.equal("index");
        });

    });
});

当我运行此操作时，会出现Error：全局泄漏检测：viewName，data / p>

When I run this, it fails for "Error: global leaks detected: viewName, data".

1. 我哪里错了，所以我可以得到这个工作？

1. Where am I going wrong so that I can get this working?

有没有更好的方法来单元测试我的代码在这个级别？

Is there a better way for me to unit test my code at this level?

更新
1.自从我最初忘记了it（）以来，更正了代码段。

Update 1. Corrected code snippet since I initially forgot "it()".

推荐答案

更改您的响应对象：

var response = {
    viewName: ""
    , data : {}
    , render: function(view, viewData) {
        this.viewName = view;
        this.data = viewData;
    }
};

它会工作。

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