javascript - Simple Unit Testing NodeJS/Express -

hi pretty new nodejs , trying write first tests.

i kind of stuck setup, hoping help.

i wrote these 2 functions:

app.js:  var express = require('express')   , cors = require('cors')   , app = express();  app.get('/a_nice_jsonp',cors(corsoptions), function(req, res, next){   var result = parsecookies(req);   res.jsonp(result); });  app.get('',function(req,res,next){   res.statuscode = 200;   res.end() }); 

i not export module file.

i assume it's pretty easy write tests that. started this:

app-test.js:  var expect = require('expect.js'); var express = require('express'); var expressapp = express();  describe('app js test', function() {   describe('get /', function() {     it('should respond empty path', function () {       expressapp.get('', function(req, res, body){         expect(res.status).to.equal(200);       });     })   }); }); 

i suppose reads simple task, seem fail on setup of test , how it.

can me out here?

edit: above test runs fine. however, have difficulties test e.g. .end() result in jsonp request. simple not know how it?!

when do

expressapp.get('', function(req, res, body){     expect(res.status).to.equal(200);   }); 

you mapping route.

to test rest api, have use library supertest (there example of testing using express + mocha in link)

it works way

var request = require('supertest'); var express = require('express');  var app = express();  app.get('/a_nice_jsonp',cors(corsoptions), function(req, res, next){   var result = parsecookies(req);   res.jsonp(result); });  app.get('',function(req,res,next){   res.statuscode = 200;   res.end() });  describe('app js test', function() {   describe('get /', function() {      it('should respond empty path', function (done) {         request(app)                .get('')                .expect(200)                .end(done)       });   }); }); 

edited separated files

app.js

var express = require('express')   , cors = require('cors')   , app = express();  app.get('/a_nice_jsonp',cors(corsoptions), function(req, res, next){   var result = parsecookies(req);   res.jsonp(result); });  app.get('',function(req,res,next){   res.statuscode = 200;   res.end() }); module.exports = app; 

app-test.js

var request = require('supertest'); var app = require('app.js');   describe('app js test', function() {   describe('get /', function() {      it('should respond empty path', function (done) {         request(app)                 .get('')                .expect(200)                .end(done)       });   }); });