PhantomJS removeDirectory

var fs = require('fs'); 
fs.removeDirectory(path);

var fs = require('fs'); 
var system = require('system'); 
var path = system.args[1]; 

console.log("Creating new directory " + path); 
var md = fs.makeDirectory(path); 

console.log("Directory present : "+fs.isDirectory(path)); 
console.log("Removing directory "+path); 
var rd = fs.removeDirectory(path); 

console.log("Directory present "+fs.isDirectory(path)); 
phantom.exit();

Creating new directory test 
Directory present : true 
Removing directory test 
Directory present false