Unit test for node server

gistfile1.txt

var assert = require("assert");
var request = require("request");
var fork = require("child_process").fork;

describe("Server", function(){
  var child;

  before(function(done){
    child = fork('index.js', null);
    child.send({func: 'start'});
    child.on('message', function(msg){
      if(msg === 'listening'){
        done();
      }
    });
  });

  after(function(){
    child.kill();
  });

  it('listens on port 4000', function(done){
    request('http://localhost:4000', function(err, res, body){
      assert(res.statusCode == 200);
      done();
    });
  });

});