index.js

var Hapi = require('hapi');

var server = new Hapi.Server('localhost', 5000);

server.route({
    method: 'GET',
    path: '/',
    handler: function (request, reply) {
        reply('hello world');
    }
});

module.exports = server;

package.json

{
  "name": "hapi-mocha",
  "version": "1.0.0",
  "description": "Simple app to demonstrate Hapi and Mocha issue",
  "main": "index.js",
  "scripts": {
    "test": "mocha"
  },
  "author": "Thomas Ingram",
  "license": "MIT",
  "dependencies": {
    "hapi": "^6.8.0"
  },
  "devDependencies": {
    "mocha": "^1.21.4"
  }
}

test.js

var assert = require('assert');

var server = require('./index');

describe('GET /', function () {
    var request = {
        method: 'GET',
        url: '/'
    };

    it('just works', function (done) {
        server.inject(request, function (response) {
            assert(response.payload === 'hello world');
            done();
        });
    });

    it('times out', function (done) {
        server.inject(request, function (response) {
            assert(response.payload === 'hello-world');
            done();
        });
    });
});