how to mock hapi.js reply for unit testing

Is there simple way of mocking the hapi reply object/function for easy unit testing?

The examples I see for hapi all use server.inject and the "lab" framwork for testing. I'm curious to see how I could keep using mocha and would like to test controller directly rather than injecting into the server.

test/post.js

  it('should be able to create a post', function(done){

    var request.payload = {foo:bar};
    var reply = {}; //how do I mock this?
    PostController.create.handler(request, reply);
    reply.r

  });

controllers/post.js

var Boom = require('Boom')
    Post = require('../models/Post')
module.exports = {

  create: {
    auth: 'token',
    handler: function (request, reply) {

    var p = new Post({foo:request.payload.foo});
    p.save(function (err, results) {
        if (!err && results)
            reply(results).created();
        else {
            reply(Boom.badImplementation(err));
        }
      });

    }
}