gistfile1.js

var app = require('../app');
var request = require('supertest');

describe('app', function() {

    before(function(done) {
        var server = app.listen(1900, done);
    });

    it('404 works', function() {
        request(app)
            .get('/aaaa')
            .expect(404);
    });

    it('known path also works', function() {
        request(app)
            .get('/')
            .expect(200);
    });

});