balancer.js

var Balancer = require('../lib/balancer');
var Lab = require('lab');

var lab = exports.lab = Lab.script();
var describe = lab.experiment;
var expect = Lab.expect;
var it = lab.test;

var nodes = [
    { host: '127.0.0.1', port: 8087 },
    { host: '127.0.0.1', port: 8088 },
    { host: '127.0.0.1', port: 8089 }
];

describe('Balancer', function () {

    it('iterates through a list and starts over when it reaches the end', function (done) {

        var balancer = new Balancer({ nodes: nodes });
        expect(balancer.next()).to.have.property('port', 8087);
        expect(balancer.next()).to.have.property('port', 8088);
        expect(balancer.next()).to.have.property('port', 8089);
        expect(balancer.next()).to.have.property('port', 8087);
        done();
    });
});