Example of Mocha spec using Chai BDD assertions and SuperTest to abstract HTTP requests and responses.

gistfile1.coffee

should = require('chai').should()
request = require 'supertest'
express = require 'express'
api = require('../routes').api

describe "api", ->
    describe "#locations", ->
        before ->
            @app = express()
            @app.get('/locations', api.locations)

        it "should return an error message if request has no latitude or longitude", (done) ->
            request(@app).get('/locations').expect(200).end (err, res) ->
                res.body.error.should.be.ok
                done()