how to save array in mongodb, which node-twitter and nodejs?

Tell them which the problem is.

As you can see, I use the module node-twitter to collect all the tweets for a given user but I need to save every tweet or all the array, at a base data nosql as mongo. My code not work, it's wrong! i don't know , which is problem, thanks for you answers

var Twitter     = require('twitter')
,   mongoose    = require('mongoose')
,   db          = mongoose.connect('mongodb://localhost:27017/tweets')
,   tweetSchema = new db.Schema({
        texto:    new Array(),
}),     util = require('util');

Twitter.get('/statuses/user_timeline/37503675.json', {include_entities:true}, function(data) {
    var otro = new Array()
    ,   test = db.model('tweetin', tweetSchema);
    // iteration for all tweet in user id 37503675
    for (var i = 0; i < data.length; i++) {
        otro.push(util.inspect(data[i].text));
    };
    // create
    var testtest = new test({
        texto: otro
    });
    //save in mongo 
    testtest.save(function (err) {if (err) console.log ('Error on save!')});
    //disconnected
    // with db.disconnect(); or without 
});