Testing replicaset

gistfile1.js

var mongodb = require('mongodb'); 
var ReplSetServers = mongodb.ReplSetServers; 
var Server = mongodb.Server; 
var Db = mongodb.Db; 
var replSet = new ReplSetServers([ 
        new Server('127.0.0.1', 27019, { auto_reconnect: true }), 
        new Server('127.0.0.1', 27020, { auto_reconnect: true }) , 
        new Server('127.0.0.1', 27021, { auto_reconnect: true }) 
    ], 
    { 
        rs_name: 'myset'
    } 
); 
var db = new Db('integration_test_', replSet, {'reaper': true}); 
function dbOpen(err, p_db) 
{ 
    console.log('connection open'); 
    db.createCollection("test", function (err, collection) 
        { 
            console.log('created collection'); 
            function addStuff() 
            { 
                function didItWork(err) 
                { 
                    console.log(err); 
                } 
                console.log('addStuff'); 
                collection.insert({"test": Date.now()}, {safe: true}, didItWork);
            } 
            collection.remove({}); 
            setInterval(addStuff, 1000); 
        }); 
} 

db.open(dbOpen);